--- /dev/null
+/*
+ * (C) Copyright 2002
+ * James F. Dougherty, Broadcom Corporation, jfd@broadcom.com
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <common.h>
+#include <watchdog.h>
+#include <command.h>
+#include <malloc.h>
+#include <devices.h>
+#include <syscall.h>
+#include <net.h>
+#include <version.h>
+#include <dtt.h>
+#include <mpc824x.h>
+#include <asm/processor.h>
+#include <linux/mtd/doc2000.h>
+
+#include "bmw.h"
+#include "m48t59y.h"
+#include <pci.h>
+
+
+int checkboard(void)
+{
+ ulong busfreq = get_bus_freq(0);
+ char buf[32];
+
+ puts ("Board: BMW MPC8245/KAHLUA2 - CHRP (MAP B)\n");
+ printf("Built: %s at %s\n", __DATE__ , __TIME__ );
+ /* printf("MPLD: Revision %d\n", SYS_REVID_GET()); */
+ printf("Local Bus at %s MHz\n", strmhz(buf, busfreq));
+ return 0;
+}
+
+long int initdram(int board_type)
+{
+ return 64*1024*1024;
+}
+
+
+void
+get_tod(void)
+{
+ int year, month, day, hour, minute, second;
+
+ m48_tod_get(&year,
+ &month,
+ &day,
+ &hour,
+ &minute,
+ &second);
+
+ printf(" Current date/time: %d/%d/%d %d:%d:%d \n",
+ month, day, year, hour, minute, second);
+
+}
+
+/*
+ * EPIC, PCI, and I/O devices.
+ * Initialize Mousse Platform, probe for PCI devices,
+ * Query configuration parameters if not set.
+ */
+int misc_init_f (void)
+{
+#if 0
+ m48_tod_init(); /* Init SGS M48T59Y TOD/NVRAM */
+ printf("RTC: M48T589 TOD/NVRAM (%d) bytes\n",
+ TOD_NVRAM_SIZE);
+ get_tod();
+#endif
+
+ sys_led_msg("BOOT");
+ return 0;
+}
+
+
+
+
+
+/*
+ * Initialize PCI Devices, report devices found.
+ */
+struct pci_controller hose;
+
+void pci_init (void)
+{
+ pci_mpc824x_init(&hose);
+ /* pci_dev_init(0); */
+}
+
+/*
+ * Write characters to LCD display.
+ * Note that the bytes for the first character is the last address.
+ */
+void
+sys_led_msg(char* msg)
+{
+ LED_REG(0) = msg[3];
+ LED_REG(1) = msg[2];
+ LED_REG(2) = msg[1];
+ LED_REG(3) = msg[0];
+}
+
+/*
+ * Map onboard TSOP-16MB DOC FLASH chip.
+ */
+void doc_init (void)
+{
+ doc_probe(DOC_BASE_ADDR);
+}
+
+#define NV_ADDR ((volatile unsigned char *) CFG_ENV_ADDR)
+
+/* Read from NVRAM */
+void*
+nvram_read(void *dest, const long src, size_t count)
+{
+ int i;
+ volatile unsigned char* d = (unsigned char*)dest;
+ volatile unsigned char* s = (unsigned char*)src;
+
+ for( i = 0; i < count;i++)
+ d[i] = s[i];
+
+ return dest;
+}
+
+/* Write to NVRAM */
+void
+nvram_write(long dest, const void *src, size_t count)
+{
+ int i;
+ volatile unsigned char* d = (unsigned char*)dest;
+ volatile unsigned char* s = (unsigned char*)src;
+
+ SYS_TOD_UNPROTECT();
+
+ for( i = 0; i < count;i++)
+ d[i] = s[i];
+
+ SYS_TOD_PROTECT();
+}
--- /dev/null
+/*
+ * (C) Copyright 2000
+ * Rob Taylor, Flying Pig Systems. robt@flyingpig.com.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include "ns16550.h"
+
+#if CONFIG_CONS_INDEX == 1
+static struct NS16550 *console =
+ (struct NS16550 *) (CFG_EUMB_ADDR + 0x4500);
+#elif CONFIG_CONS_INDEX == 2
+static struct NS16550 *console =
+ (struct NS16550 *) (CFG_EUMB_ADDR + 0x4500);
+#else
+#error no valid console defined
+#endif
+
+extern ulong get_bus_freq (ulong);
+
+int serial_init (void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ int clock_divisor = gd->bus_clk / 16 / gd->baudrate;
+
+ NS16550_init (CONFIG_CONS_INDEX - 1, clock_divisor);
+
+ return (0);
+}
+
+void serial_putc (const char c)
+{
+ if (c == '\n') {
+ serial_putc ('\r');
+ }
+ NS16550_putc (console, c);
+}
+
+void serial_puts (const char *s)
+{
+ while (*s) {
+ serial_putc (*s++);
+ }
+}
+
+
+int serial_getc (void)
+{
+ return NS16550_getc (console);
+}
+
+int serial_tstc (void)
+{
+ return NS16550_tstc (console);
+}
+
+void serial_setbrg (void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ int clock_divisor = get_bus_freq (0) / 16 / gd->baudrate;
+
+ NS16550_reinit (console, clock_divisor);
+}
--- /dev/null
+/*
+ * (C) Copyright 2001
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <ioports.h>
+#include <mpc8260.h>
+#include "cpu86.h"
+
+/*
+ * I/O Port configuration table
+ *
+ * if conf is 1, then that port pin will be configured at boot time
+ * according to the five values podr/pdir/ppar/psor/pdat for that entry
+ */
+
+const iop_conf_t iop_conf_tab[4][32] = {
+
+ /* Port A configuration */
+ { /* conf ppar psor pdir podr pdat */
+ /* PA31 */ { 1, 1, 1, 0, 0, 0 }, /* FCC1 MII COL */
+ /* PA30 */ { 1, 1, 1, 0, 0, 0 }, /* FCC1 MII CRS */
+ /* PA29 */ { 1, 1, 1, 1, 0, 0 }, /* FCC1 MII TX_ER */
+ /* PA28 */ { 1, 1, 1, 1, 0, 0 }, /* FCC1 MII TX_EN */
+ /* PA27 */ { 1, 1, 1, 0, 0, 0 }, /* FCC1 MII RX_DV */
+ /* PA26 */ { 1, 1, 1, 0, 0, 0 }, /* FCC1 MII RX_ER */
+ /* PA25 */ { 1, 0, 0, 1, 0, 0 }, /* FCC2 MII MDIO */
+ /* PA24 */ { 1, 0, 0, 1, 0, 0 }, /* FCC2 MII MDC */
+ /* PA23 */ { 1, 0, 0, 1, 0, 0 }, /* FCC1 MII MDIO */
+ /* PA22 */ { 1, 0, 0, 1, 0, 0 }, /* FCC1 MII MDC */
+ /* PA21 */ { 1, 1, 0, 1, 0, 0 }, /* FCC1 MII TxD[3] */
+ /* PA20 */ { 1, 1, 0, 1, 0, 0 }, /* FCC1 MII TxD[2] */
+ /* PA19 */ { 1, 1, 0, 1, 0, 0 }, /* FCC1 MII TxD[1] */
+ /* PA18 */ { 1, 1, 0, 1, 0, 0 }, /* FCC1 MII TxD[0] */
+ /* PA17 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 MII RxD[0] */
+ /* PA16 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 MII RxD[1] */
+ /* PA15 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 MII RxD[2] */
+ /* PA14 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 MII RxD[3] */
+ /* PA13 */ { 1, 0, 0, 1, 0, 0 }, /* FCC2 MII TXSL1 */
+ /* PA12 */ { 1, 0, 0, 1, 0, 1 }, /* FCC2 MII TXSL0 */
+ /* PA11 */ { 1, 0, 0, 1, 0, 0 }, /* FCC1 MII TXSL1 */
+ /* PA10 */ { 1, 0, 0, 1, 0, 1 }, /* FCC1 MII TXSL0 */
+ /* PA9 */ { 0, 1, 0, 1, 0, 0 }, /* SMC2 TXD */
+ /* PA8 */ { 0, 1, 0, 0, 0, 0 }, /* SMC2 RXD */
+ /* PA7 */ { 0, 0, 0, 0, 0, 0 }, /* PA7 */
+ /* PA6 */ { 1, 0, 0, 1, 0, 1 }, /* FCC2 MII PAUSE */
+ /* PA5 */ { 1, 0, 0, 1, 0, 1 }, /* FCC1 MII PAUSE */
+ /* PA4 */ { 1, 0, 0, 1, 0, 0 }, /* FCC2 MII PWRDN */
+ /* PA3 */ { 1, 0, 0, 1, 0, 0 }, /* FCC1 MII PWRDN */
+ /* PA2 */ { 0, 0, 0, 0, 0, 0 }, /* PA2 */
+ /* PA1 */ { 1, 0, 0, 0, 0, 0 }, /* FCC2 MII MDINT */
+ /* PA0 */ { 1, 0, 0, 1, 0, 0 } /* FCC1 MII MDINT */
+ },
+
+ /* Port B configuration */
+ { /* conf ppar psor pdir podr pdat */
+ /* PB31 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TX_ER */
+ /* PB30 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_DV */
+ /* PB29 */ { 1, 1, 1, 1, 0, 0 }, /* FCC2 MII TX_EN */
+ /* PB28 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_ER */
+ /* PB27 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII COL */
+ /* PB26 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII CRS */
+ /* PB25 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[3] */
+ /* PB24 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[2] */
+ /* PB23 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[1] */
+ /* PB22 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[0] */
+ /* PB21 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[0] */
+ /* PB20 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[1] */
+ /* PB19 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[2] */
+ /* PB18 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[3] */
+ /* PB17 */ { 0, 0, 0, 0, 0, 0 }, /* PB17 */
+ /* PB16 */ { 0, 0, 0, 0, 0, 0 }, /* PB16 */
+ /* PB15 */ { 0, 0, 0, 0, 0, 0 }, /* PB15 */
+ /* PB14 */ { 0, 0, 0, 0, 0, 0 }, /* PB14 */
+ /* PB13 */ { 0, 0, 0, 0, 0, 0 }, /* PB13 */
+ /* PB12 */ { 0, 0, 0, 0, 0, 0 }, /* PB12 */
+ /* PB11 */ { 0, 0, 0, 0, 0, 0 }, /* PB11 */
+ /* PB10 */ { 0, 0, 0, 0, 0, 0 }, /* PB10 */
+ /* PB9 */ { 0, 0, 0, 0, 0, 0 }, /* PB9 */
+ /* PB8 */ { 0, 0, 0, 0, 0, 0 }, /* PB8 */
+ /* PB7 */ { 0, 0, 0, 0, 0, 0 }, /* PB7 */
+ /* PB6 */ { 0, 0, 0, 0, 0, 0 }, /* PB6 */
+ /* PB5 */ { 0, 0, 0, 0, 0, 0 }, /* PB5 */
+ /* PB4 */ { 0, 0, 0, 0, 0, 0 }, /* PB4 */
+ /* PB3 */ { 0, 0, 0, 0, 0, 0 }, /* PB3 */
+ /* PB2 */ { 0, 0, 0, 0, 0, 0 }, /* PB2 */
+ /* PB1 */ { 0, 0, 0, 0, 0, 0 }, /* PB1 */
+ /* PB0 */ { 0, 0, 0, 0, 0, 0 } /* PB0 */
+ },
+
+ /* Port C */
+ { /* conf ppar psor pdir podr pdat */
+ /* PC31 */ { 0, 0, 0, 0, 0, 0 }, /* PC31 */
+ /* PC30 */ { 0, 0, 0, 0, 0, 0 }, /* PC30 */
+ /* PC29 */ { 1, 0, 0, 0, 0, 0 }, /* SCC1 CTS */
+ /* PC28 */ { 1, 0, 0, 0, 0, 0 }, /* SCC2 CTS */
+ /* PC27 */ { 0, 0, 0, 0, 0, 0 }, /* PC27 */
+ /* PC26 */ { 0, 0, 0, 0, 0, 0 }, /* PC26 */
+ /* PC25 */ { 0, 0, 0, 0, 0, 0 }, /* PC25 */
+ /* PC24 */ { 0, 0, 0, 0, 0, 0 }, /* PC24 */
+ /* PC23 */ { 0, 0, 0, 0, 0, 0 }, /* FDC37C78 DACFD */
+ /* PC22 */ { 0, 0, 0, 0, 0, 0 }, /* FDC37C78 DNFD */
+ /* PC21 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 MII RX_CLK */
+ /* PC20 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 MII TX_CLK */
+ /* PC19 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_CLK */
+ /* PC18 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII TX_CLK */
+ /* PC17 */ { 0, 0, 0, 0, 0, 0 }, /* PC17 */
+ /* PC16 */ { 0, 0, 0, 0, 0, 0 }, /* PC16 */
+ /* PC15 */ { 0, 0, 0, 0, 0, 0 }, /* PC15 */
+ /* PC14 */ { 0, 0, 0, 0, 0, 0 }, /* PC14 */
+ /* PC13 */ { 0, 0, 0, 0, 0, 0 }, /* PC13 */
+ /* PC12 */ { 0, 0, 0, 0, 0, 0 }, /* PC12 */
+ /* PC11 */ { 0, 0, 0, 0, 0, 0 }, /* PC11 */
+ /* PC10 */ { 0, 0, 0, 0, 0, 0 }, /* PC10 */
+ /* PC9 */ { 0, 0, 0, 0, 0, 0 }, /* FC9 */
+ /* PC8 */ { 0, 0, 0, 0, 0, 0 }, /* PC8 */
+ /* PC7 */ { 0, 0, 0, 0, 0, 0 }, /* PC7 */
+ /* PC6 */ { 0, 0, 0, 0, 0, 0 }, /* PC6 */
+ /* PC5 */ { 0, 0, 0, 0, 0, 0 }, /* PC5 */
+ /* PC4 */ { 0, 0, 0, 0, 0, 0 }, /* PC4 */
+ /* PC3 */ { 0, 0, 0, 0, 0, 0 }, /* PC3 */
+ /* PC2 */ { 0, 0, 0, 0, 0, 0 }, /* PC2 */
+ /* PC1 */ { 0, 0, 0, 0, 0, 0 }, /* PC1 */
+ /* PC0 */ { 0, 0, 0, 0, 0, 0 }, /* FDC37C78 DRQFD */
+ },
+
+ /* Port D */
+ { /* conf ppar psor pdir podr pdat */
+ /* PD31 */ { 1, 1, 0, 0, 0, 0 }, /* SCC1 RXD */
+ /* PD30 */ { 1, 1, 1, 1, 0, 0 }, /* SCC1 TXD */
+ /* PD29 */ { 1, 0, 0, 1, 0, 0 }, /* SCC1 RTS */
+ /* PD28 */ { 1, 1, 0, 0, 0, 0 }, /* SCC2 RXD */
+ /* PD27 */ { 1, 1, 0, 1, 0, 0 }, /* SCC2 TXD */
+ /* PD26 */ { 1, 0, 0, 1, 0, 0 }, /* SCC2 RTS */
+ /* PD25 */ { 0, 0, 0, 0, 0, 0 }, /* PD25 */
+ /* PD24 */ { 0, 0, 0, 0, 0, 0 }, /* PD24 */
+ /* PD23 */ { 0, 0, 0, 0, 0, 0 }, /* PD23 */
+ /* PD22 */ { 0, 0, 0, 0, 0, 0 }, /* PD22 */
+ /* PD21 */ { 0, 0, 0, 0, 0, 0 }, /* PD21 */
+ /* PD20 */ { 0, 0, 0, 0, 0, 0 }, /* PD20 */
+ /* PD19 */ { 0, 0, 0, 0, 0, 0 }, /* PD19 */
+ /* PD18 */ { 0, 0, 0, 0, 0, 0 }, /* PD18 */
+ /* PD17 */ { 0, 0, 0, 0, 0, 0 }, /* PD17 */
+ /* PD16 */ { 0, 0, 0, 0, 0, 0 }, /* PD16 */
+#if defined(CONFIG_SOFT_I2C)
+ /* PD15 */ { 1, 0, 0, 1, 1, 1 }, /* I2C SDA */
+ /* PD14 */ { 1, 0, 0, 1, 1, 1 }, /* I2C SCL */
+#else
+#if defined(CONFIG_HARD_I2C)
+ /* PD15 */ { 1, 1, 1, 0, 1, 0 }, /* I2C SDA */
+ /* PD14 */ { 1, 1, 1, 0, 1, 0 }, /* I2C SCL */
+#else /* normal I/O port pins */
+ /* PD15 */ { 1, 1, 1, 0, 1, 0 }, /* I2C SDA */
+ /* PD14 */ { 1, 1, 1, 0, 1, 0 }, /* I2C SCL */
+#endif
+#endif
+ /* PD13 */ { 0, 0, 0, 0, 0, 0 }, /* PD13 */
+ /* PD12 */ { 0, 0, 0, 0, 0, 0 }, /* PD12 */
+ /* PD11 */ { 0, 0, 0, 0, 0, 0 }, /* PD11 */
+ /* PD10 */ { 0, 0, 0, 0, 0, 0 }, /* PD10 */
+ /* PD9 */ { 1, 1, 0, 1, 0, 0 }, /* SMC1 TXD */
+ /* PD8 */ { 1, 1, 0, 0, 0, 0 }, /* SMC1 RXD */
+ /* PD7 */ { 0, 0, 0, 0, 0, 0 }, /* PD7 */
+ /* PD6 */ { 0, 0, 0, 0, 0, 0 }, /* PD6 */
+ /* PD5 */ { 0, 0, 0, 0, 0, 0 }, /* PD5 */
+ /* PD4 */ { 0, 0, 0, 0, 0, 0 }, /* PD4 */
+ /* PD3 */ { 0, 0, 0, 0, 0, 0 }, /* PD3 */
+ /* PD2 */ { 0, 0, 0, 0, 0, 0 }, /* PD2 */
+ /* PD1 */ { 0, 0, 0, 0, 0, 0 }, /* PD1 */
+ /* PD0 */ { 0, 0, 0, 0, 0, 0 } /* PD0 */
+ }
+};
+
+/* ------------------------------------------------------------------------- */
+
+/* Check Board Identity:
+ */
+int checkboard (void)
+{
+ printf ("Board: CPU86 (Rev %02x)\n", CPU86_REV);
+ return 0;
+}
+
+/* ------------------------------------------------------------------------- */
+
+/* Try SDRAM initialization with P/LSDMR=sdmr and ORx=orx
+ *
+ * This routine performs standard 8260 initialization sequence
+ * and calculates the available memory size. It may be called
+ * several times to try different SDRAM configurations on both
+ * 60x and local buses.
+ */
+static long int try_init (volatile memctl8260_t * memctl, ulong sdmr,
+ ulong orx, volatile uchar * base)
+{
+ volatile uchar c = 0xff;
+ ulong cnt, val;
+ volatile ulong *addr;
+ volatile uint *sdmr_ptr;
+ volatile uint *orx_ptr;
+ int i;
+ ulong save[32]; /* to make test non-destructive */
+ ulong maxsize;
+
+ /* We must be able to test a location outsize the maximum legal size
+ * to find out THAT we are outside; but this address still has to be
+ * mapped by the controller. That means, that the initial mapping has
+ * to be (at least) twice as large as the maximum expected size.
+ */
+ maxsize = (1 + (~orx | 0x7fff)) / 2;
+
+ /* Since CFG_SDRAM_BASE is always 0 (??), we assume that
+ * we are configuring CS1 if base != 0
+ */
+ sdmr_ptr = &memctl->memc_psdmr;
+ orx_ptr = &memctl->memc_or2;
+
+ *orx_ptr = orx;
+
+ /*
+ * Quote from 8260 UM (10.4.2 SDRAM Power-On Initialization, 10-35):
+ *
+ * "At system reset, initialization software must set up the
+ * programmable parameters in the memory controller banks registers
+ * (ORx, BRx, P/LSDMR). After all memory parameters are configured,
+ * system software should execute the following initialization sequence
+ * for each SDRAM device.
+ *
+ * 1. Issue a PRECHARGE-ALL-BANKS command
+ * 2. Issue eight CBR REFRESH commands
+ * 3. Issue a MODE-SET command to initialize the mode register
+ *
+ * The initial commands are executed by setting P/LSDMR[OP] and
+ * accessing the SDRAM with a single-byte transaction."
+ *
+ * The appropriate BRx/ORx registers have already been set when we
+ * get here. The SDRAM can be accessed at the address CFG_SDRAM_BASE.
+ */
+
+ *sdmr_ptr = sdmr | PSDMR_OP_PREA;
+ *base = c;
+
+ *sdmr_ptr = sdmr | PSDMR_OP_CBRR;
+ for (i = 0; i < 8; i++)
+ *base = c;
+
+ *sdmr_ptr = sdmr | PSDMR_OP_MRW;
+ *(base + CFG_MRS_OFFS) = c; /* setting MR on address lines */
+
+ *sdmr_ptr = sdmr | PSDMR_OP_NORM | PSDMR_RFEN;
+ *base = c;
+
+ /*
+ * Check memory range for valid RAM. A simple memory test determines
+ * the actually available RAM size between addresses `base' and
+ * `base + maxsize'. Some (not all) hardware errors are detected:
+ * - short between address lines
+ * - short between data lines
+ */
+ i = 0;
+ for (cnt = maxsize / sizeof (long); cnt > 0; cnt >>= 1) {
+ addr = (volatile ulong *) base + cnt; /* pointer arith! */
+ save[i++] = *addr;
+ *addr = ~cnt;
+ }
+
+ addr = (volatile ulong *) base;
+ save[i] = *addr;
+ *addr = 0;
+
+ if ((val = *addr) != 0) {
+ *addr = save[i];
+ return (0);
+ }
+
+ for (cnt = 1; cnt <= maxsize / sizeof (long); cnt <<= 1) {
+ addr = (volatile ulong *) base + cnt; /* pointer arith! */
+ val = *addr;
+ *addr = save[--i];
+ if (val != ~cnt) {
+ /* Write the actual size to ORx
+ */
+ *orx_ptr = orx | ~(cnt * sizeof (long) - 1);
+ return (cnt * sizeof (long));
+ }
+ }
+ return (maxsize);
+}
+
+long int initdram (int board_type)
+{
+ volatile immap_t *immap = (immap_t *) CFG_IMMR;
+ volatile memctl8260_t *memctl = &immap->im_memctl;
+
+#ifndef CFG_RAMBOOT
+ ulong size8, size9;
+#endif
+ long psize;
+
+ psize = 32 * 1024 * 1024;
+
+ memctl->memc_mptpr = CFG_MPTPR;
+ memctl->memc_psrt = CFG_PSRT;
+
+#ifndef CFG_RAMBOOT
+ /* 60x SDRAM setup:
+ */
+ size8 = try_init (memctl, CFG_PSDMR_8COL, CFG_OR2_8COL,
+ (uchar *) CFG_SDRAM_BASE);
+ size9 = try_init (memctl, CFG_PSDMR_9COL, CFG_OR2_9COL,
+ (uchar *) CFG_SDRAM_BASE);
+
+ if (size8 < size9) {
+ psize = size9;
+ printf ("(60x:9COL) ");
+ } else {
+ psize = try_init (memctl, CFG_PSDMR_8COL, CFG_OR2_8COL,
+ (uchar *) CFG_SDRAM_BASE);
+ printf ("(60x:8COL) ");
+ }
+
+#endif /* CFG_RAMBOOT */
+
+ icache_enable ();
+
+ return (psize);
+}
+
+#if (CONFIG_COMMANDS & CFG_CMD_DOC)
+extern void doc_probe (ulong physadr);
+void doc_init (void)
+{
+ doc_probe (CFG_DOC_BASE);
+}
+#endif
--- /dev/null
+/*
+ * (C) Copyright 2001
+ * Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net
+ *
+ * (C) Copyright 2001-2002
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <malloc.h>
+#include <mpc8xx.h>
+
+/* ------------------------------------------------------------------------- */
+
+static long int dram_size (long int, long int *, long int);
+
+/* ------------------------------------------------------------------------- */
+
+#define _NOT_USED_ 0xFFFFFFFF
+
+const uint sdram_table[] =
+{
+#if (MPC8XX_SPEED <= 50000000L)
+ /*
+ * Single Read. (Offset 0 in UPMA RAM)
+ */
+ 0x0F07EC04,
+ 0x01BBD804,
+ 0x1FF7F440,
+ 0xFFFFFC07,
+ 0xFFFFFFFF,
+
+ /*
+ * SDRAM Initialization (offset 5 in UPMA RAM)
+ *
+ * This is no UPM entry point. The following definition uses
+ * the remaining space to establish an initialization
+ * sequence, which is executed by a RUN command.
+ *
+ */
+ 0x1FE7F434,
+ 0xEFABE834,
+ 0x1FA7D435,
+
+ /*
+ * Burst Read. (Offset 8 in UPMA RAM)
+ */
+ 0x0F07EC04,
+ 0x10EFDC04,
+ 0xF0AFFC00,
+ 0xF0AFFC00,
+ 0xF1AFFC00,
+ 0xFFAFFC40,
+ 0xFFAFFC07,
+ 0xFFFFFFFF,
+ 0xFFFFFFFF,
+ 0xFFFFFFFF,
+ 0xFFFFFFFF,
+ 0xFFFFFFFF,
+ 0xFFFFFFFF,
+ 0xFFFFFFFF,
+ 0xFFFFFFFF,
+ 0xFFFFFFFF,
+
+ /*
+ * Single Write. (Offset 18 in UPMA RAM)
+ */
+ 0x0E07E804,
+ 0x01BBD000,
+ 0x1FF7F447,
+ 0xFFFFFFFF,
+ 0xFFFFFFFF,
+ 0xFFFFFFFF,
+ 0xFFFFFFFF,
+ 0xFFFFFFFF,
+
+ /*
+ * Burst Write. (Offset 20 in UPMA RAM)
+ */
+ 0x0E07E800,
+ 0x10EFD400,
+ 0xF0AFFC00,
+ 0xF0AFFC00,
+ 0xF1AFFC47,
+ 0xFFFFFFFF,
+ 0xFFFFFFFF,
+ 0xFFFFFFFF,
+ 0xFFFFFFFF,
+ 0xFFFFFFFF,
+ 0xFFFFFFFF,
+ 0xFFFFFFFF,
+ 0xFFFFFFFF,
+ 0xFFFFFFFF,
+ 0xFFFFFFFF,
+ 0xFFFFFFFF,
+
+ /*
+ * Refresh (Offset 30 in UPMA RAM)
+ */
+ 0x1FF7DC84,
+ 0xFFFFFC04,
+ 0xFFFFFC84,
+ 0xFFFFFC07,
+ 0xFFFFFFFF,
+ 0xFFFFFFFF,
+ 0xFFFFFFFF,
+ 0xFFFFFFFF,
+ 0xFFFFFFFF,
+ 0xFFFFFFFF,
+ 0xFFFFFFFF,
+ 0xFFFFFFFF,
+
+ /*
+ * Exception. (Offset 3c in UPMA RAM)
+ */
+ 0x7FFFFC07,
+ 0xFFFFFFFF,
+ 0xFFFFFFFF,
+ 0xFFFFFFFF
+
+#else
+
+ /*
+ * Single Read. (Offset 0 in UPMA RAM)
+ */
+ 0x1F07FC04,
+ 0xEEAFEC04,
+ 0x11AFDC04,
+ 0xEFBBF800,
+ 0x1FF7F447,
+
+ /*
+ * SDRAM Initialization (offset 5 in UPMA RAM)
+ *
+ * This is no UPM entry point. The following definition uses
+ * the remaining space to establish an initialization
+ * sequence, which is executed by a RUN command.
+ *
+ */
+ 0x1FF7F434,
+ 0xEFEBE834,
+ 0x1FB7D435,
+
+ /*
+ * Burst Read. (Offset 8 in UPMA RAM)
+ */
+ 0x1F07FC04,
+ 0xEEAFEC04,
+ 0x10AFDC04,
+ 0xF0AFFC00,
+ 0xF0AFFC00,
+ 0xF1AFFC00,
+ 0xEFBBF800,
+ 0x1FF7F447,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+
+ /*
+ * Single Write. (Offset 18 in UPMA RAM)
+ */
+ 0x1F07FC04,
+ 0xEEAFE800,
+ 0x01BBD004,
+ 0x1FF7F447,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+
+ /*
+ * Burst Write. (Offset 20 in UPMA RAM)
+ */
+ 0x1F07FC04,
+ 0xEEAFE800,
+ 0x10AFD400,
+ 0xF0AFFC00,
+ 0xF0AFFC00,
+ 0xE1BBF804,
+ 0x1FF7F447,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+
+ /*
+ * Refresh (Offset 30 in UPMA RAM)
+ */
+ 0x1FF7DC84,
+ 0xFFFFFC04,
+ 0xFFFFFC04,
+ 0xFFFFFC04,
+ 0xFFFFFC84,
+ 0xFFFFFC07,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_,
+
+ /*
+ * Exception. (Offset 3c in UPMA RAM)
+ */
+ 0x7FFFFC07, /* last */
+ _NOT_USED_, _NOT_USED_, _NOT_USED_,
+#endif
+};
+
+/* ------------------------------------------------------------------------- */
+
+
+/*
+ * Check Board Identity:
+ *
+ */
+
+int checkboard (void)
+{
+ printf ("Board: Nexus NX823");
+ return (0);
+}
+
+/* ------------------------------------------------------------------------- */
+
+long int initdram (int board_type)
+{
+ volatile immap_t *immap = (immap_t *)CFG_IMMR;
+ volatile memctl8xx_t *memctl = &immap->im_memctl;
+ long int size_b0, size_b1, size8, size9;
+
+ upmconfig(UPMA, (uint *)sdram_table, sizeof(sdram_table)/sizeof(uint));
+
+ /*
+ * Up to 2 Banks of 64Mbit x 2 devices
+ * Initial builds only have 1
+ */
+ memctl->memc_mptpr = CFG_MPTPR_1BK_4K;
+ memctl->memc_mar = 0x00000088;
+
+ /*
+ * Map controller SDRAM bank 0
+ */
+ memctl->memc_or1 = CFG_OR1_PRELIM;
+ memctl->memc_br1 = CFG_BR1_PRELIM;
+ memctl->memc_mamr = CFG_MAMR_8COL & (~(MAMR_PTAE)); /* no refresh yet */
+ udelay(200);
+
+ /*
+ * Map controller SDRAM bank 1
+ */
+ memctl->memc_or2 = CFG_OR2_PRELIM;
+ memctl->memc_br2 = CFG_BR2_PRELIM;
+
+ /*
+ * Perform SDRAM initializsation sequence
+ */
+ memctl->memc_mcr = 0x80002105; /* SDRAM bank 0 */
+ udelay(1);
+ memctl->memc_mcr = 0x80002230; /* SDRAM bank 0 - execute twice */
+ udelay(1);
+
+ memctl->memc_mcr = 0x80004105; /* SDRAM bank 1 */
+ udelay(1);
+ memctl->memc_mcr = 0x80004230; /* SDRAM bank 1 - execute twice */
+ udelay(1);
+
+ memctl->memc_mamr |= MAMR_PTAE; /* enable refresh */
+ udelay (1000);
+
+ /*
+ * Preliminary prescaler for refresh (depends on number of
+ * banks): This value is selected for four cycles every 62.4 us
+ * with two SDRAM banks or four cycles every 31.2 us with one
+ * bank. It will be adjusted after memory sizing.
+ */
+ memctl->memc_mptpr = CFG_MPTPR_2BK_8K;
+
+ memctl->memc_mar = 0x00000088;
+
+
+ /*
+ * Check Bank 0 Memory Size for re-configuration
+ *
+ * try 8 column mode
+ */
+ size8 = dram_size (CFG_MAMR_8COL, (ulong *)SDRAM_BASE1_PRELIM, SDRAM_MAX_SIZE);
+
+ udelay (1000);
+
+ /*
+ * try 9 column mode
+ */
+ size9 = dram_size (CFG_MAMR_9COL, (ulong *)SDRAM_BASE1_PRELIM, SDRAM_MAX_SIZE);
+
+ if (size8 < size9) { /* leave configuration at 9 columns */
+ size_b0 = size9;
+/* debug ("SDRAM Bank 0 in 9 column mode: %ld MB\n", size >> 20); */
+ } else { /* back to 8 columns */
+ size_b0 = size8;
+ memctl->memc_mamr = CFG_MAMR_8COL;
+ udelay(500);
+/* debug ("SDRAM Bank 0 in 8 column mode: %ld MB\n", size >> 20); */
+ }
+
+ /*
+ * Check Bank 1 Memory Size
+ * use current column settings
+ * [9 column SDRAM may also be used in 8 column mode,
+ * but then only half the real size will be used.]
+ */
+ size_b1 = dram_size (memctl->memc_mamr, (ulong *)SDRAM_BASE2_PRELIM,
+ SDRAM_MAX_SIZE);
+/* debug ("SDRAM Bank 1: %ld MB\n", size8 >> 20); */
+
+ udelay (1000);
+
+ /*
+ * Adjust refresh rate depending on SDRAM type, both banks
+ * For types > 128 MBit leave it at the current (fast) rate
+ */
+ if ((size_b0 < 0x02000000) && (size_b1 < 0x02000000)) {
+ /* reduce to 15.6 us (62.4 us / quad) */
+ memctl->memc_mptpr = CFG_MPTPR_2BK_4K;
+ udelay(1000);
+ }
+
+ /*
+ * Final mapping: map bigger bank first
+ */
+ if (size_b1 > size_b0) { /* SDRAM Bank 1 is bigger - map first */
+
+ memctl->memc_or2 = ((-size_b1) & 0xFFFF0000) | CFG_OR_TIMING_SDRAM;
+ memctl->memc_br2 = (CFG_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMA | BR_V;
+
+ if (size_b0 > 0) {
+ /*
+ * Position Bank 0 immediately above Bank 1
+ */
+ memctl->memc_or1 = ((-size_b0) & 0xFFFF0000) | CFG_OR_TIMING_SDRAM;
+ memctl->memc_br1 = ((CFG_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMA | BR_V)
+ + size_b1;
+ } else {
+ unsigned long reg;
+ /*
+ * No bank 0
+ *
+ * invalidate bank
+ */
+ memctl->memc_br1 = 0;
+
+ /* adjust refresh rate depending on SDRAM type, one bank */
+ reg = memctl->memc_mptpr;
+ reg >>= 1; /* reduce to CFG_MPTPR_1BK_8K / _4K */
+ memctl->memc_mptpr = reg;
+ }
+
+ } else { /* SDRAM Bank 0 is bigger - map first */
+
+ memctl->memc_or1 = ((-size_b0) & 0xFFFF0000) | CFG_OR_TIMING_SDRAM;
+ memctl->memc_br1 = (CFG_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMA | BR_V;
+
+ if (size_b1 > 0) {
+ /*
+ * Position Bank 1 immediately above Bank 0
+ */
+ memctl->memc_or2 = ((-size_b1) & 0xFFFF0000) | CFG_OR_TIMING_SDRAM;
+ memctl->memc_br2 = ((CFG_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMA | BR_V)
+ + size_b0;
+ } else {
+ unsigned long reg;
+ /*
+ * No bank 1
+ *
+ * invalidate bank
+ */
+ memctl->memc_br2 = 0;
+
+ /* adjust refresh rate depending on SDRAM type, one bank */
+ reg = memctl->memc_mptpr;
+ reg >>= 1; /* reduce to CFG_MPTPR_1BK_8K / _4K */
+ memctl->memc_mptpr = reg;
+ }
+ }
+
+ udelay(10000);
+
+ return (size_b0 + size_b1);
+}
+
+/* ------------------------------------------------------------------------- */
+
+/*
+ * Check memory range for valid RAM. A simple memory test determines
+ * the actually available RAM size between addresses `base' and
+ * `base + maxsize'. Some (not all) hardware errors are detected:
+ * - short between address lines
+ * - short between data lines
+ */
+
+static long int dram_size (long int mamr_value, long int *base, long int maxsize)
+{
+ volatile immap_t *immap = (immap_t *)CFG_IMMR;
+ volatile memctl8xx_t *memctl = &immap->im_memctl;
+ volatile long int *addr;
+ long int cnt, val;
+
+ memctl->memc_mamr = mamr_value;
+
+ for (cnt = maxsize/sizeof(long); cnt > 0; cnt >>= 1) {
+ addr = base + cnt; /* pointer arith! */
+
+ *addr = ~cnt;
+ }
+
+ /* write 0 to base address */
+ addr = base;
+ *addr = 0;
+
+ /* check at base address */
+ if ((val = *addr) != 0) {
+ return (0);
+ }
+
+ for (cnt = 1; ; cnt <<= 1) {
+ addr = base + cnt; /* pointer arith! */
+
+ val = *addr;
+
+ if (val != (~cnt)) {
+ return (cnt * sizeof(long));
+ }
+ }
+ /* NOTREACHED */
+}
+
+u_long *my_sernum;
+
+int misc_init_r (void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ char tmp[50];
+ u_char *e = gd->bd->bi_enetaddr;
+
+ /* save serial numbre from flash (uniquely programmed) */
+ my_sernum = malloc(8);
+ memcpy(my_sernum,gd->bd->bi_sernum,8);
+
+ /* save env variables according to sernum */
+ sprintf(tmp,"%08lx%08lx",my_sernum[0],my_sernum[1]);
+ setenv("serial#",tmp);
+
+ sprintf(tmp,"%02x:%02x:%02x:%02x:%02x:%02x"
+ ,e[0],e[1],e[2],e[3],e[4],e[5]);
+ setenv("ethaddr",tmp);
+ return (0);
+}
+
+void load_sernum_ethaddr (void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ int i;
+ bd_t * bd = gd->bd;
+
+ for (i = 0; i < 8; i++) {
+ bd->bi_sernum[i] = *(u_char *) (CFG_FLASH_SN_BASE + i);
+ }
+ bd->bi_enetaddr[0] = 0x10;
+ bd->bi_enetaddr[1] = 0x20;
+ bd->bi_enetaddr[2] = 0x30;
+ bd->bi_enetaddr[3] = bd->bi_sernum[1] << 4 | bd->bi_sernum[2];
+ bd->bi_enetaddr[4] = bd->bi_sernum[5];
+ bd->bi_enetaddr[5] = bd->bi_sernum[6];
+}
+
--- /dev/null
+/*
+ * (C) Copyright 2002
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <config.h>
+#include <common.h>
+#include <asm/io.h>
+
+#include "fpga_serial.h"
+#include "hardware.h"
+#include "pcippc2.h"
+
+ /* 8 data, 1 stop, no parity
+ */
+#define LCRVAL 0x03
+ /* RTS/DTR
+ */
+#define MCRVAL 0x03
+ /* Clear & enable FIFOs
+ */
+#define FCRVAL 0x07
+
+static void fpga_serial_wait (void);
+static void fpga_serial_print (char c);
+
+void fpga_serial_init (int baudrate)
+{
+ int clock_divisor = 115200 / baudrate;
+
+ out8 (FPGA (INT, SERIAL_CONFIG), 0x24);
+ iobarrier_rw ();
+
+ fpga_serial_wait ();
+
+ out8 (UART (IER), 0);
+ out8 (UART (LCR), LCRVAL | 0x80);
+ iobarrier_rw ();
+ out8 (UART (DLL), clock_divisor & 0xff);
+ out8 (UART (DLM), clock_divisor >> 8);
+ iobarrier_rw ();
+ out8 (UART (LCR), LCRVAL);
+ iobarrier_rw ();
+ out8 (UART (MCR), MCRVAL);
+ out8 (UART (FCR), FCRVAL);
+ iobarrier_rw ();
+}
+
+void fpga_serial_putc (char c)
+{
+ if (c) {
+ fpga_serial_print (c);
+ }
+}
+
+void fpga_serial_puts (const char *s)
+{
+ while (*s) {
+ fpga_serial_print (*s++);
+ }
+}
+
+int fpga_serial_getc (void)
+{
+ while ((in8 (UART (LSR)) & 0x01) == 0);
+
+ return in8 (UART (RBR));
+}
+
+int fpga_serial_tstc (void)
+{
+ return (in8 (UART (LSR)) & 0x01) != 0;
+}
+
+void fpga_serial_setbrg (void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ int clock_divisor = 115200 / gd->baudrate;
+
+ fpga_serial_wait ();
+
+ out8 (UART (LCR), LCRVAL | 0x80);
+ iobarrier_rw ();
+ out8 (UART (DLL), clock_divisor & 0xff);
+ out8 (UART (DLM), clock_divisor >> 8);
+ iobarrier_rw ();
+ out8 (UART (LCR), LCRVAL);
+ iobarrier_rw ();
+}
+
+static void fpga_serial_wait (void)
+{
+ while ((in8 (UART (LSR)) & 0x40) == 0);
+}
+
+static void fpga_serial_print (char c)
+{
+ if (c == '\n') {
+ while ((in8 (UART (LSR)) & 0x20) == 0);
+
+ out8 (UART (THR), '\r');
+ iobarrier_rw ();
+ }
+
+ while ((in8 (UART (LSR)) & 0x20) == 0);
+
+ out8 (UART (THR), c);
+ iobarrier_rw ();
+
+ if (c == '\n') {
+ fpga_serial_wait ();
+ }
+}
--- /dev/null
+/*
+ * (C) Copyright 2002
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef _FPGA_SERIAL_H_
+#define _FPGA_SERIAL_H_
+
+extern void fpga_serial_init (int);
+extern void fpga_serial_putc (char);
+extern void fpga_serial_puts (const char *);
+extern int fpga_serial_getc (void);
+extern int fpga_serial_tstc (void);
+extern void fpga_serial_setbrg (void);
+
+#endif
--- /dev/null
+/*
+ * (C) Copyright 2002
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <config.h>
+#include <common.h>
+
+#include "sconsole.h"
+
+void (*sconsole_putc) (char) = 0;
+void (*sconsole_puts) (const char *) = 0;
+int (*sconsole_getc) (void) = 0;
+int (*sconsole_tstc) (void) = 0;
+void (*sconsole_setbrg) (void) = 0;
+
+int serial_init (void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ sconsole_buffer_t *sb = SCONSOLE_BUFFER;
+
+ sb->pos = 0;
+ sb->size = 0;
+ sb->baud = gd->baudrate;
+ sb->max_size = CFG_SCONSOLE_SIZE - sizeof (sconsole_buffer_t);
+
+ return (0);
+}
+
+void serial_putc (char c)
+{
+ if (sconsole_putc) {
+ (*sconsole_putc) (c);
+ } else {
+ sconsole_buffer_t *sb = SCONSOLE_BUFFER;
+
+ if (c) {
+ sb->data[sb->pos++] = c;
+ if (sb->pos == sb->max_size) {
+ sb->pos = 0;
+ }
+ if (sb->size < sb->max_size) {
+ sb->size++;
+ }
+ }
+ }
+}
+
+void serial_puts (const char *s)
+{
+ if (sconsole_puts) {
+ (*sconsole_puts) (s);
+ } else {
+ sconsole_buffer_t *sb = SCONSOLE_BUFFER;
+
+ while (*s) {
+ sb->data[sb->pos++] = *s++;
+ if (sb->pos == sb->max_size) {
+ sb->pos = 0;
+ }
+ if (sb->size < sb->max_size) {
+ sb->size++;
+ }
+ }
+ }
+}
+
+int serial_getc (void)
+{
+ if (sconsole_getc) {
+ return (*sconsole_getc) ();
+ } else {
+ return 0;
+ }
+}
+
+int serial_tstc (void)
+{
+ if (sconsole_tstc) {
+ return (*sconsole_tstc) ();
+ } else {
+ return 0;
+ }
+}
+
+void serial_setbrg (void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ if (sconsole_setbrg) {
+ (*sconsole_setbrg) ();
+ } else {
+ sconsole_buffer_t *sb = SCONSOLE_BUFFER;
+
+ sb->baud = gd->baudrate;
+ }
+}
+
+int sconsole_get_baudrate (void)
+{
+ sconsole_buffer_t *sb = SCONSOLE_BUFFER;
+
+ return sb->baud;
+}
+
+void sconsole_flush (void)
+{
+ if (sconsole_putc) {
+ sconsole_buffer_t *sb = SCONSOLE_BUFFER;
+ unsigned int end = sb->pos < sb->size
+ ? sb->pos + sb->max_size - sb->size
+ : sb->pos - sb->size;
+
+ while (sb->size) {
+ (*sconsole_putc) (sb->data[end++]);
+ if (end == sb->max_size) {
+ end = 0;
+ }
+ sb->size--;
+ }
+ }
+}
--- /dev/null
+/*
+ * (C) Copyright 2002
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef _SCONSOLE_H_
+#define _SCONSOLE_H_
+
+#include <config.h>
+
+typedef struct sconsole_buffer_s
+{
+ unsigned long size;
+ unsigned long max_size;
+ unsigned long pos;
+ unsigned long baud;
+ char data [1];
+} sconsole_buffer_t;
+
+#define SCONSOLE_BUFFER ((sconsole_buffer_t *) CFG_SCONSOLE_ADDR)
+
+extern void (* sconsole_putc) (char);
+extern void (* sconsole_puts) (const char *);
+extern int (* sconsole_getc) (void);
+extern int (* sconsole_tstc) (void);
+extern void (* sconsole_setbrg) (void);
+
+extern void sconsole_flush (void);
+extern int sconsole_get_baudrate (void);
+
+#endif
--- /dev/null
+/*
+ * (C) Copyright 2001
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <ioports.h>
+#include <mpc8260.h>
+
+/*
+ * I/O Port configuration table
+ *
+ * if conf is 1, then that port pin will be configured at boot time
+ * according to the five values podr/pdir/ppar/psor/pdat for that entry
+ */
+
+const iop_conf_t iop_conf_tab[4][32] = {
+
+ /* Port A configuration */
+ { /* conf ppar psor pdir podr pdat */
+ /* PA31 */ { 1, 1, 1, 0, 0, 0 }, /* FCC1 COL */
+ /* PA30 */ { 1, 1, 1, 0, 0, 0 }, /* FCC1 CRS */
+ /* PA29 */ { 1, 1, 1, 1, 0, 0 }, /* FCC1 TXER */
+ /* PA28 */ { 1, 1, 1, 1, 0, 0 }, /* FCC1 TXEN */
+ /* PA27 */ { 1, 1, 1, 0, 0, 0 }, /* FCC1 RXDV */
+ /* PA26 */ { 1, 1, 1, 0, 0, 0 }, /* FCC1 RXER */
+ /* PA25 */ { 0, 0, 0, 1, 0, 0 }, /* PA25 */
+ /* PA24 */ { 0, 0, 0, 1, 0, 0 }, /* PA24 */
+ /* PA23 */ { 0, 0, 0, 1, 0, 0 }, /* PA23 */
+ /* PA22 */ { 0, 0, 0, 1, 0, 0 }, /* PA22 */
+ /* PA21 */ { 1, 1, 0, 1, 0, 0 }, /* FCC1 TXD3 */
+ /* PA20 */ { 1, 1, 0, 1, 0, 0 }, /* FCC1 TXD2 */
+ /* PA19 */ { 1, 1, 0, 1, 0, 0 }, /* FCC1 TXD1 */
+ /* PA18 */ { 1, 1, 0, 1, 0, 0 }, /* FCC1 TXD0 */
+ /* PA17 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 RXD0 */
+ /* PA16 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 RXD1*/
+ /* PA15 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 RXD2 */
+ /* PA14 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 RXD3 */
+ /* PA13 */ { 0, 0, 0, 1, 0, 0 }, /* PA13 */
+ /* PA12 */ { 0, 0, 0, 1, 0, 0 }, /* PA12 */
+ /* PA11 */ { 0, 0, 0, 1, 0, 0 }, /* PA11 */
+ /* PA10 */ { 0, 0, 0, 1, 0, 0 }, /* PA10 */
+ /* PA9 */ { 0, 1, 0, 1, 0, 0 }, /* PA9 */
+ /* PA8 */ { 0, 1, 0, 0, 0, 0 }, /* PA8 */
+ /* PA7 */ { 0, 0, 0, 1, 0, 0 }, /* PA7 */
+ /* PA6 */ { 0, 0, 0, 1, 0, 0 }, /* PA6 */
+ /* PA5 */ { 0, 0, 0, 1, 0, 0 }, /* PA5 */
+ /* PA4 */ { 0, 0, 0, 1, 0, 0 }, /* PA4 */
+ /* PA3 */ { 0, 0, 0, 1, 0, 0 }, /* PA3 */
+ /* PA2 */ { 0, 0, 0, 1, 0, 0 }, /* PA2 */
+ /* PA1 */ { 0, 0, 0, 1, 0, 0 }, /* PA1 */
+ /* PA0 */ { 0, 0, 0, 1, 0, 0 } /* PA0 */
+ },
+
+ /* Port B configuration */
+ { /* conf ppar psor pdir podr pdat */
+ /* PB31 */ { 0, 1, 0, 1, 0, 0 }, /* PB31 */
+ /* PB30 */ { 0, 1, 0, 0, 0, 0 }, /* PB30 */
+ /* PB29 */ { 0, 1, 1, 1, 0, 0 }, /* PB29 */
+ /* PB28 */ { 1, 1, 1, 1, 0, 0 }, /* SCC1 TXD */
+ /* PB27 */ { 0, 1, 0, 0, 0, 0 }, /* PB27 */
+ /* PB26 */ { 0, 1, 0, 0, 0, 0 }, /* PB26 */
+ /* PB25 */ { 0, 1, 0, 1, 0, 0 }, /* PB25 */
+ /* PB24 */ { 0, 1, 0, 1, 0, 0 }, /* PB24 */
+ /* PB23 */ { 0, 1, 0, 1, 0, 0 }, /* PB23 */
+ /* PB22 */ { 0, 1, 0, 1, 0, 0 }, /* PB22 */
+ /* PB21 */ { 0, 1, 0, 0, 0, 0 }, /* PB21 */
+ /* PB20 */ { 0, 1, 0, 0, 0, 0 }, /* PB20 */
+ /* PB19 */ { 0, 1, 0, 0, 0, 0 }, /* PB19 */
+ /* PB18 */ { 0, 1, 0, 0, 0, 0 }, /* PB18 */
+ /* PB17 */ { 0, 0, 0, 0, 0, 0 }, /* PB17 */
+ /* PB16 */ { 0, 0, 0, 0, 0, 0 }, /* PB16 */
+ /* PB15 */ { 1, 1, 0, 0, 0, 0 }, /* SCC2 RXD */
+ /* PB14 */ { 1, 1, 0, 0, 0, 0 }, /* SCC3 RXD */
+ /* PB13 */ { 0, 0, 0, 0, 0, 0 }, /* PB13 */
+ /* PB12 */ { 0, 0, 0, 0, 0, 0 }, /* PB12 */
+ /* PB11 */ { 0, 0, 0, 0, 0, 0 }, /* PB11 */
+ /* PB10 */ { 0, 0, 0, 0, 0, 0 }, /* PB10 */
+ /* PB9 */ { 0, 0, 0, 0, 0, 0 }, /* PB9 */
+ /* PB8 */ { 1, 1, 1, 1, 0, 0 }, /* SCC3 TXD */
+ /* PB7 */ { 0, 0, 0, 0, 0, 0 }, /* PB7 */
+ /* PB6 */ { 0, 0, 0, 0, 0, 0 }, /* PB6 */
+ /* PB5 */ { 0, 0, 0, 0, 0, 0 }, /* PB5 */
+ /* PB4 */ { 0, 0, 0, 0, 0, 0 }, /* PB4 */
+ /* PB3 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
+ /* PB2 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
+ /* PB1 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
+ /* PB0 */ { 0, 0, 0, 0, 0, 0 } /* pin doesn't exist */
+ },
+
+ /* Port C */
+ { /* conf ppar psor pdir podr pdat */
+ /* PC31 */ { 0, 0, 0, 1, 0, 0 }, /* PC31 */
+ /* PC30 */ { 0, 0, 0, 1, 0, 0 }, /* PC30 */
+ /* PC29 */ { 0, 1, 1, 0, 0, 0 }, /* SCC1 CTS */
+ /* PC28 */ { 0, 0, 0, 1, 0, 0 }, /* SCC2 CTS */
+ /* PC27 */ { 0, 0, 0, 1, 0, 0 }, /* PC27 */
+ /* PC26 */ { 0, 0, 0, 1, 0, 0 }, /* PC26 */
+ /* PC25 */ { 0, 0, 0, 1, 0, 0 }, /* PC25 */
+ /* PC24 */ { 0, 0, 0, 1, 0, 0 }, /* PC24 */
+ /* PC23 */ { 0, 1, 0, 1, 0, 0 }, /* PC23 */
+ /* PC22 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 TXCK */
+ /* PC21 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 RXCK */
+ /* PC20 */ { 0, 1, 0, 0, 0, 0 }, /* PC20 */
+ /* PC19 */ { 0, 1, 0, 0, 0, 0 }, /* PC19 */
+ /* PC18 */ { 0, 1, 0, 0, 0, 0 }, /* PC18 */
+ /* PC17 */ { 0, 0, 0, 1, 0, 0 }, /* PC17 */
+ /* PC16 */ { 0, 0, 0, 1, 0, 0 }, /* PC16 */
+ /* PC15 */ { 1, 1, 0, 1, 0, 0 }, /* SMC2 TXD */
+ /* PC14 */ { 0, 1, 0, 0, 0, 0 }, /* SCC1 DCD */
+ /* PC13 */ { 0, 0, 0, 1, 0, 0 }, /* PC13 */
+ /* PC12 */ { 0, 0, 0, 1, 0, 0 }, /* SCC2 DCD */
+ /* PC11 */ { 0, 0, 0, 1, 0, 0 }, /* SCC3 CTS */
+ /* PC10 */ { 0, 0, 0, 1, 0, 0 }, /* SCC3 DCD */
+ /* PC9 */ { 0, 0, 0, 1, 0, 0 }, /* SCC4 CTS */
+ /* PC8 */ { 0, 0, 0, 1, 0, 0 }, /* SCC4 DCD */
+ /* PC7 */ { 0, 0, 0, 1, 0, 0 }, /* PC7 */
+ /* PC6 */ { 0, 0, 0, 1, 0, 0 }, /* PC6 */
+ /* PC5 */ { 0, 0, 0, 1, 0, 0 }, /* PC5 */
+ /* PC4 */ { 0, 0, 0, 1, 0, 0 }, /* PC4 */
+ /* PC3 */ { 0, 0, 0, 1, 0, 0 }, /* PC3 */
+ /* PC2 */ { 0, 0, 0, 1, 0, 1 }, /* PC2 */
+ /* PC1 */ { 0, 0, 0, 1, 0, 0 }, /* PC1 */
+ /* PC0 */ { 0, 0, 0, 1, 0, 0 }, /* PC0 */
+ },
+
+ /* Port D */
+ { /* conf ppar psor pdir podr pdat */
+ /* PD31 */ { 1, 1, 0, 0, 0, 0 }, /* SCC1 RXD */
+ /* PD30 */ { 0, 1, 1, 1, 0, 0 }, /* PD30 */
+ /* PD29 */ { 0, 1, 0, 1, 0, 0 }, /* SCC1 RTS */
+ /* PD28 */ { 0, 0, 0, 1, 0, 0 }, /* PD28 */
+ /* PD27 */ { 0, 1, 0, 1, 0, 0 }, /* SCC2 RTS */
+ /* PD26 */ { 0, 0, 0, 1, 0, 0 }, /* PD26 */
+ /* PD25 */ { 0, 0, 0, 1, 0, 0 }, /* PD25 */
+ /* PD24 */ { 0, 0, 0, 1, 0, 0 }, /* PD24 */
+ /* PD23 */ { 0, 0, 0, 1, 0, 0 }, /* SCC3 RTS */
+ /* PD22 */ { 1, 1, 0, 0, 0, 0 }, /* SCC4 RXD */
+ /* PD21 */ { 1, 1, 0, 1, 0, 0 }, /* SCC4 TXD */
+ /* PD20 */ { 0, 0, 1, 1, 0, 0 }, /* SCC4 RTS */
+ /* PD19 */ { 0, 0, 0, 1, 0, 0 }, /* PD19 */
+ /* PD18 */ { 0, 0, 0, 1, 0, 0 }, /* PD18 */
+ /* PD17 */ { 0, 1, 0, 0, 0, 0 }, /* PD17 */
+ /* PD16 */ { 0, 1, 0, 1, 0, 0 }, /* PD16 */
+#if defined(CONFIG_SOFT_I2C)
+ /* PD15 */ { 1, 0, 0, 1, 1, 1 }, /* I2C SDA */
+ /* PD14 */ { 1, 0, 0, 1, 1, 1 }, /* I2C SCL */
+#else
+#if defined(CONFIG_HARD_I2C)
+ /* PD15 */ { 1, 1, 1, 0, 1, 0 }, /* I2C SDA */
+ /* PD14 */ { 1, 1, 1, 0, 1, 0 }, /* I2C SCL */
+#else /* normal I/O port pins */
+ /* PD15 */ { 0, 1, 1, 0, 1, 0 }, /* I2C SDA */
+ /* PD14 */ { 0, 1, 1, 0, 1, 0 }, /* I2C SCL */
+#endif
+#endif
+ /* PD13 */ { 0, 0, 0, 0, 0, 0 }, /* PD13 */
+ /* PD12 */ { 0, 0, 0, 0, 0, 0 }, /* PD12 */
+ /* PD11 */ { 0, 0, 0, 0, 0, 0 }, /* PD11 */
+ /* PD10 */ { 0, 0, 0, 0, 0, 0 }, /* PD10 */
+ /* PD9 */ { 0, 1, 0, 1, 0, 0 }, /* PD9 */
+ /* PD8 */ { 0, 1, 0, 0, 0, 0 }, /* PD8 */
+ /* PD7 */ { 0, 0, 0, 1, 0, 1 }, /* PD7 */
+ /* PD6 */ { 0, 0, 0, 1, 0, 1 }, /* PD6 */
+ /* PD5 */ { 0, 0, 0, 1, 0, 1 }, /* PD5 */
+ /* PD4 */ { 1, 1, 1, 0, 0, 0 }, /* SMC2 RXD */
+ /* PD3 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
+ /* PD2 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
+ /* PD1 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
+ /* PD0 */ { 0, 0, 0, 0, 0, 0 } /* pin doesn't exist */
+ }
+};
+
+/* ------------------------------------------------------------------------- */
+
+/* Check Board Identity:
+ */
+int checkboard (void)
+{
+ puts ("Board: PM826\n");
+ return 0;
+}
+
+/* ------------------------------------------------------------------------- */
+
+
+/* Try SDRAM initialization with P/LSDMR=sdmr and ORx=orx
+ *
+ * This routine performs standard 8260 initialization sequence
+ * and calculates the available memory size. It may be called
+ * several times to try different SDRAM configurations on both
+ * 60x and local buses.
+ */
+static long int try_init (volatile memctl8260_t * memctl, ulong sdmr,
+ ulong orx, volatile uchar * base)
+{
+ volatile uchar c = 0xff;
+ volatile ulong cnt, val;
+ volatile ulong *addr;
+ volatile uint *sdmr_ptr;
+ volatile uint *orx_ptr;
+ int i;
+ ulong save[32]; /* to make test non-destructive */
+ ulong maxsize;
+
+ /* We must be able to test a location outsize the maximum legal size
+ * to find out THAT we are outside; but this address still has to be
+ * mapped by the controller. That means, that the initial mapping has
+ * to be (at least) twice as large as the maximum expected size.
+ */
+ maxsize = (1 + (~orx | 0x7fff)) / 2;
+
+ sdmr_ptr = &memctl->memc_psdmr;
+ orx_ptr = &memctl->memc_or2;
+
+ *orx_ptr = orx;
+
+ /*
+ * Quote from 8260 UM (10.4.2 SDRAM Power-On Initialization, 10-35):
+ *
+ * "At system reset, initialization software must set up the
+ * programmable parameters in the memory controller banks registers
+ * (ORx, BRx, P/LSDMR). After all memory parameters are configured,
+ * system software should execute the following initialization sequence
+ * for each SDRAM device.
+ *
+ * 1. Issue a PRECHARGE-ALL-BANKS command
+ * 2. Issue eight CBR REFRESH commands
+ * 3. Issue a MODE-SET command to initialize the mode register
+ *
+ * The initial commands are executed by setting P/LSDMR[OP] and
+ * accessing the SDRAM with a single-byte transaction."
+ *
+ * The appropriate BRx/ORx registers have already been set when we
+ * get here. The SDRAM can be accessed at the address CFG_SDRAM_BASE.
+ */
+
+ *sdmr_ptr = sdmr | PSDMR_OP_PREA;
+ *base = c;
+
+ *sdmr_ptr = sdmr | PSDMR_OP_CBRR;
+ for (i = 0; i < 8; i++)
+ *base = c;
+
+ *sdmr_ptr = sdmr | PSDMR_OP_MRW;
+ *(base + CFG_MRS_OFFS) = c; /* setting MR on address lines */
+
+ *sdmr_ptr = sdmr | PSDMR_OP_NORM | PSDMR_RFEN;
+ *base = c;
+
+ /*
+ * Check memory range for valid RAM. A simple memory test determines
+ * the actually available RAM size between addresses `base' and
+ * `base + maxsize'. Some (not all) hardware errors are detected:
+ * - short between address lines
+ * - short between data lines
+ */
+ i = 0;
+ for (cnt = maxsize / sizeof (long); cnt > 0; cnt >>= 1) {
+ addr = (volatile ulong *) base + cnt; /* pointer arith! */
+ save[i++] = *addr;
+ *addr = ~cnt;
+ }
+
+ addr = (volatile ulong *) base;
+ save[i] = *addr;
+ *addr = 0;
+
+ if ((val = *addr) != 0) {
+ *addr = save[i];
+ return (0);
+ }
+
+ for (cnt = 1; cnt <= maxsize / sizeof (long); cnt <<= 1) {
+ addr = (volatile ulong *) base + cnt; /* pointer arith! */
+ val = *addr;
+ *addr = save[--i];
+ if (val != ~cnt) {
+ /* Write the actual size to ORx
+ */
+ *orx_ptr = orx | ~(cnt * sizeof (long) - 1);
+ return (cnt * sizeof (long));
+ }
+ }
+ return (maxsize);
+}
+
+
+long int initdram (int board_type)
+{
+ volatile immap_t *immap = (immap_t *) CFG_IMMR;
+ volatile memctl8260_t *memctl = &immap->im_memctl;
+
+#ifndef CFG_RAMBOOT
+ ulong size8, size9;
+#endif
+ ulong psize = 32 * 1024 * 1024;
+
+ memctl->memc_psrt = CFG_PSRT;
+ memctl->memc_mptpr = CFG_MPTPR;
+
+#ifndef CFG_RAMBOOT
+ size8 = try_init (memctl, CFG_PSDMR_8COL, CFG_OR2_8COL,
+ (uchar *) CFG_SDRAM_BASE);
+ size9 = try_init (memctl, CFG_PSDMR_9COL, CFG_OR2_9COL,
+ (uchar *) CFG_SDRAM_BASE);
+
+ if (size8 < size9) {
+ psize = size9;
+ printf ("(60x:9COL) ");
+ } else {
+ psize = try_init (memctl, CFG_PSDMR_8COL, CFG_OR2_8COL,
+ (uchar *) CFG_SDRAM_BASE);
+ printf ("(60x:8COL) ");
+ }
+#endif
+ return (psize);
+}
+
+#if (CONFIG_COMMANDS & CFG_CMD_DOC)
+extern void doc_probe (ulong physadr);
+void doc_init (void)
+{
+ doc_probe (CFG_DOC_BASE);
+}
+#endif
--- /dev/null
+/*
+ * (C) Copyright 2001
+ * Paul Geerinckx
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <mpc8xx.h>
+#include "atm.h"
+#include <i2c.h>
+
+/* ------------------------------------------------------------------------- */
+
+static long int dram_size (long int, long int *, long int);
+
+/* ------------------------------------------------------------------------- */
+
+/* used PLD registers */
+# define PLD_GCR1_REG (unsigned char *) (0x10000000 + 0)
+# define PLD_EXT_RES (unsigned char *) (0x10000000 + 10)
+# define PLD_EXT_FETH (unsigned char *) (0x10000000 + 11)
+# define PLD_EXT_LED (unsigned char *) (0x10000000 + 12)
+# define PLD_EXT_X21 (unsigned char *) (0x10000000 + 13)
+
+#define _NOT_USED_ 0xFFFFFFFF
+
+const uint sdram_table[] =
+{
+ /*
+ * Single Read. (Offset 0 in UPMA RAM)
+ */
+ 0xFE2DB004, 0xF0AA7004, 0xF0A5F400, 0xF3AFFC47, /* last */
+ _NOT_USED_,
+ /*
+ * SDRAM Initialization (offset 5 in UPMA RAM)
+ *
+ * This is no UPM entry point. The following definition uses
+ * the remaining space to establish an initialization
+ * sequence, which is executed by a RUN command.
+ *
+ */
+ 0xFFFAF834, 0xFFE5B435, /* last */
+ _NOT_USED_,
+ /*
+ * Burst Read. (Offset 8 in UPMA RAM)
+ */
+ 0xFE2DB004, 0xF0AF7404, 0xF0AFFC00, 0xF0AFFC00,
+ 0xF0AFFC00, 0xF0AAF800, 0xF1A5E447, /* last */
+ _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ /*
+ * Single Write. (Offset 18 in UPMA RAM)
+ */
+ 0xFE29B300, 0xF1A27304, 0xFFA5F747, /* last */
+ _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ /*
+ * Burst Write. (Offset 20 in UPMA RAM)
+ */
+ 0x1F0DFC04, 0xEEABBC00, 0x10A77C00, 0xF0AFFC00,
+ 0xF1AAF804, 0xFFA5F447, /* last */
+ _NOT_USED_, _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ /*
+ * Refresh (Offset 30 in UPMA RAM)
+ */
+ 0xFFAC3884, 0xFFAC3404, 0xFFAFFC04, 0xFFAFFC84,
+ 0xFFAFFC07, /* last */
+ _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ /*
+ * MRS sequence (Offset 38 in UPMA RAM)
+ */
+ 0xFFAAB834, 0xFFA57434, 0xFFAFFC05, /* last */
+ _NOT_USED_,
+ /*
+ * Exception. (Offset 3c in UPMA RAM)
+ */
+ 0xFFAFFC04, 0xFFAFFC05, /* last */
+ _NOT_USED_, _NOT_USED_,
+};
+
+/* ------------------------------------------------------------------------- */
+
+
+
+long int initdram (int board_type)
+{
+ volatile immap_t *immap = (immap_t *)CFG_IMMR;
+ volatile memctl8xx_t *memctl = &immap->im_memctl;
+ volatile iop8xx_t *iop = &immap->im_ioport;
+ volatile fec_t *fecp = &immap->im_cpm.cp_fec;
+ long int size;
+
+ upmconfig(UPMA, (uint *)sdram_table, sizeof(sdram_table)/sizeof(uint));
+
+ /*
+ * Preliminary prescaler for refresh (depends on number of
+ * banks): This value is selected for four cycles every 62.4 us
+ * with two SDRAM banks or four cycles every 31.2 us with one
+ * bank. It will be adjusted after memory sizing.
+ */
+ memctl->memc_mptpr = CFG_MPTPR;
+
+ memctl->memc_mar = 0x00000088;
+
+ /*
+ * Map controller banks 2 and 3 to the SDRAM banks 2 and 3 at
+ * preliminary addresses - these have to be modified after the
+ * SDRAM size has been determined.
+ */
+ memctl->memc_or2 = CFG_OR2_PRELIM;
+ memctl->memc_br2 = CFG_BR2_PRELIM;
+
+ memctl->memc_mamr = CFG_MAMR & (~(MAMR_PTAE)); /* no refresh yet */
+
+ udelay(200);
+
+ /* perform SDRAM initializsation sequence */
+
+ memctl->memc_mcr = 0x80004105; /* SDRAM bank 0 */
+ udelay(1);
+ memctl->memc_mcr = 0x80004230; /* SDRAM bank 0 - execute twice */
+ udelay(1);
+
+ memctl->memc_mcr = 0x80004105; /* SDRAM precharge */
+ udelay(1);
+ memctl->memc_mcr = 0x80004030; /* SDRAM 16x autorefresh */
+ udelay(1);
+ memctl->memc_mcr = 0x80004138; /* SDRAM upload parameters */
+ udelay(1);
+
+ memctl->memc_mamr |= MAMR_PTAE; /* enable refresh */
+
+ udelay (1000);
+
+ /*
+ * Check Bank 0 Memory Size for re-configuration
+ *
+ */
+ size = dram_size (CFG_MAMR, (ulong *)SDRAM_BASE_PRELIM, SDRAM_MAX_SIZE);
+
+ udelay (1000);
+
+
+ memctl->memc_mamr = CFG_MAMR;
+ udelay (1000);
+
+ /*
+ * Final mapping
+ */
+ memctl->memc_or2 = ((-size) & 0xFFFF0000) | CFG_OR2_PRELIM;
+ memctl->memc_br2 = ((CFG_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMA | BR_V);
+
+ udelay(10000);
+
+ /* prepare pin multiplexing for fast ethernet */
+
+ atmLoad();
+ fecp->fec_ecntrl = 0x00000004; /* rev D3 pinmux SET */
+ iop->iop_pdpar |= 0x0080; /* set pin as MII_clock */
+
+
+ return (size);
+}
+
+/* ------------------------------------------------------------------------- */
+
+/*
+ * Check memory range for valid RAM. A simple memory test determines
+ * the actually available RAM size between addresses `base' and
+ * `base + maxsize'. Some (not all) hardware errors are detected:
+ * - short between address lines
+ * - short between data lines
+ */
+
+static long int dram_size (long int mamr_value, long int *base, long int maxsize)
+{
+ volatile immap_t *immap = (immap_t *)CFG_IMMR;
+ volatile memctl8xx_t *memctl = &immap->im_memctl;
+ volatile long int *addr;
+ ulong cnt, val;
+ ulong save[32]; /* to make test non-destructive */
+ unsigned char i = 0;
+
+ memctl->memc_mamr = mamr_value;
+
+ for (cnt = maxsize/sizeof(long); cnt > 0; cnt >>= 1) {
+ addr = base + cnt; /* pointer arith! */
+
+ save[i++] = *addr;
+ *addr = ~cnt;
+ }
+
+ /* write 0 to base address */
+ addr = base;
+ save[i] = *addr;
+ *addr = 0;
+
+ /* check at base address */
+ if ((val = *addr) != 0) {
+ *addr = save[i];
+ return (0);
+ }
+
+ for (cnt = 1; cnt <= maxsize/sizeof(long); cnt <<= 1) {
+ addr = base + cnt; /* pointer arith! */
+
+ val = *addr;
+ *addr = save[--i];
+
+ if (val != (~cnt)) {
+ return (cnt * sizeof(long));
+ }
+ }
+ return (maxsize);
+}
+
+/*
+ * Check Board Identity:
+ */
+
+int checkboard (void)
+{
+ return (0);
+}
+
+void board_serial_init(void)
+{
+ ;/* nothing to do here */
+}
+
+void board_ether_init(void)
+{
+ volatile immap_t *immap = (immap_t *)CFG_IMMR;
+ volatile iop8xx_t *iop = &immap->im_ioport;
+ volatile fec_t *fecp = &immap->im_cpm.cp_fec;
+
+ atmLoad();
+ fecp->fec_ecntrl = 0x00000004; /* rev D3 pinmux SET */
+ iop->iop_pdpar |= 0x0080; /* set pin as MII_clock */
+}
+
+int board_pre_init (void)
+{
+ volatile immap_t *immap = (immap_t *)CFG_IMMR;
+ volatile cpmtimer8xx_t *timers = &immap->im_cpmtimer;
+ volatile memctl8xx_t *memctl = &immap->im_memctl;
+ volatile iop8xx_t *iop = &immap->im_ioport;
+
+ /* configure the LED timing output pins - port A pin 4 */
+ iop->iop_papar = 0x0800;
+ iop->iop_padir = 0x0800;
+
+ /* start timer 2 for the 4hz LED blink rate */
+ timers->cpmt_tmr2 = 0xff2c; /* 4hz for 64mhz */
+ timers->cpmt_trr2 = 0x000003d0; /* clk/16 , prescale=256 */
+ timers->cpmt_tgcr = 0x00000810; /* run timer 2 */
+
+ /* chip select for PLD access */
+ memctl->memc_br6 = 0x10000401;
+ memctl->memc_or6 = 0xFC000908;
+
+ /* PLD initial values ( set LEDs, remove reset on LXT) */
+
+ *PLD_GCR1_REG = 0x06;
+ *PLD_EXT_RES = 0xC0;
+ *PLD_EXT_FETH = 0x40;
+ *PLD_EXT_LED = 0xFF;
+ *PLD_EXT_X21 = 0x04;
+ return 0;
+}
+
+void board_get_enetaddr (uchar *addr)
+{
+ int i;
+ volatile immap_t *immap = (immap_t *)CFG_IMMR;
+ volatile cpm8xx_t *cpm = &immap->im_cpm;
+ unsigned int rccrtmp;
+
+ char default_mac_addr[] = {0x00, 0x08, 0x01, 0x02, 0x03, 0x04};
+
+ for (i=0; i<6; i++)
+ addr[i] = default_mac_addr[i];
+
+ printf("There is an error in the i2c driver .. /n");
+ printf("You need to fix it first....../n");
+
+ rccrtmp = cpm->cp_rccr;
+ cpm->cp_rccr |= 0x0020;
+
+ i2c_reg_read(0xa0, 0);
+ printf ("seep = '-%c-%c-%c-%c-%c-%c-'\n",
+ i2c_reg_read(0xa0, 0), i2c_reg_read(0xa0, 0), i2c_reg_read(0xa0, 0),
+ i2c_reg_read(0xa0, 0), i2c_reg_read(0xa0, 0), i2c_reg_read(0xa0, 0) );
+
+ cpm->cp_rccr = rccrtmp;
+
+
+}
--- /dev/null
+/*
+ * (C) Copyright 2001
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <ioports.h>
+#include <mpc8260.h>
+
+#include "scm.h"
+
+static void config_scoh_cs(void);
+extern int fpga_init(void);
+
+#if 0
+#define DEBUGF(fmt,args...) printf (fmt ,##args)
+#else
+#define DEBUGF(fmt,args...)
+#endif
+
+/*
+ * I/O Port configuration table
+ *
+ * if conf is 1, then that port pin will be configured at boot time
+ * according to the five values podr/pdir/ppar/psor/pdat for that entry
+ */
+
+const iop_conf_t iop_conf_tab[4][32] = {
+
+ /* Port A configuration */
+ { /* conf ppar psor pdir podr pdat */
+ /* PA31 */ { 1, 1, 1, 0, 0, 0 }, /* FCC1 MII COL */
+ /* PA30 */ { 1, 1, 1, 0, 0, 0 }, /* FCC1 MII CRS */
+ /* PA29 */ { 1, 1, 1, 1, 0, 0 }, /* FCC1 MII TX_ER */
+ /* PA28 */ { 1, 1, 1, 1, 0, 0 }, /* FCC1 MII TX_EN */
+ /* PA27 */ { 1, 1, 1, 0, 0, 0 }, /* FCC1 MII RX_DV */
+ /* PA26 */ { 1, 1, 1, 0, 0, 0 }, /* FCC1 MII RX_ER */
+ /* PA25 */ { 0, 0, 0, 1, 0, 0 },
+ /* PA24 */ { 0, 0, 0, 1, 0, 0 },
+ /* PA23 */ { 0, 0, 0, 1, 0, 0 },
+ /* PA22 */ { 0, 0, 0, 1, 0, 0 },
+ /* PA21 */ { 1, 1, 0, 1, 0, 0 }, /* FCC1 MII TxD[3] */
+ /* PA20 */ { 1, 1, 0, 1, 0, 0 }, /* FCC1 MII TxD[2] */
+ /* PA19 */ { 1, 1, 0, 1, 0, 0 }, /* FCC1 MII TxD[1] */
+ /* PA18 */ { 1, 1, 0, 1, 0, 0 }, /* FCC1 MII TxD[0] */
+ /* PA17 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 MII RxD[0] */
+ /* PA16 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 MII RxD[1]*/
+ /* PA15 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 MII RxD[2] */
+ /* PA14 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 MII RxD[3] */
+ /* PA13 */ { 0, 0, 0, 1, 0, 0 },
+ /* PA12 */ { 0, 0, 0, 1, 0, 0 },
+ /* PA11 */ { 0, 0, 0, 1, 0, 0 },
+ /* PA10 */ { 0, 0, 0, 1, 0, 0 },
+ /* PA9 */ { 1, 1, 1, 1, 0, 0 }, /* TDM_A1 L1TXD0 */
+ /* PA8 */ { 1, 1, 1, 0, 0, 0 }, /* TDM_A1 L1RXD0 */
+ /* PA7 */ { 1, 1, 1, 0, 0, 0 }, /* TDM_A1 L1TSYNC */
+ /* PA6 */ { 1, 1, 1, 0, 0, 0 }, /* TDM_A1 L1RSYNC */
+ /* PA5 */ { 1, 0, 0, 0, 0, 0 }, /* FIOX_FPGA_PR */
+ /* PA4 */ { 1, 0, 0, 0, 0, 0 }, /* DOHM_FPGA_PR */
+ /* PA3 */ { 1, 1, 0, 0, 0, 0 }, /* TDM RXCLK4 */
+ /* PA2 */ { 1, 1, 0, 0, 0, 0 }, /* TDM TXCLK4 */
+ /* PA1 */ { 0, 0, 0, 1, 0, 0 },
+ /* PA0 */ { 1, 0, 0, 0, 0, 0 } /* BUSY */
+ },
+
+ /* Port B configuration */
+ { /* conf ppar psor pdir podr pdat */
+ /* PB31 */ { 1, 0, 0, 1, 0, 0 }, /* EQ_ALARM_MIN */
+ /* PB30 */ { 1, 0, 0, 1, 0, 0 }, /* EQ_ALARM_MAJ */
+ /* PB29 */ { 1, 0, 0, 1, 0, 0 }, /* COM_ALARM_MIN */
+ /* PB28 */ { 1, 0, 0, 1, 0, 0 }, /* COM_ALARM_MAJ */
+ /* PB27 */ { 0, 1, 0, 0, 0, 0 },
+ /* PB26 */ { 0, 1, 0, 0, 0, 0 },
+ /* PB25 */ { 1, 0, 0, 1, 0, 0 }, /* LED_GREEN_L */
+ /* PB24 */ { 1, 0, 0, 1, 0, 0 }, /* LED_RED_L */
+ /* PB23 */ { 1, 1, 1, 0, 0, 0 }, /* TDM_D2 L1TXD */
+ /* PB22 */ { 1, 1, 1, 0, 0, 0 }, /* TDM_D2 L1RXD */
+ /* PB21 */ { 1, 1, 1, 0, 0, 0 }, /* TDM_D2 L1TSYNC */
+ /* PB20 */ { 1, 1, 1, 0, 0, 0 }, /* TDM_D2 L1RSYNC */
+ /* PB19 */ { 1, 0, 0, 0, 0, 0 }, /* UID */
+ /* PB18 */ { 0, 1, 0, 0, 0, 0 },
+ /* PB17 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII RX_DV */
+ /* PB16 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII RX_ER */
+ /* PB15 */ { 1, 1, 0, 1, 0, 0 }, /* FCC3 MII TX_ER */
+ /* PB14 */ { 1, 1, 0, 1, 0, 0 }, /* FCC3 MII TX_EN */
+ /* PB13 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII COL */
+ /* PB12 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII CRS */
+ /* PB11 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII RxD[3] */
+ /* PB10 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII RxD[2] */
+ /* PB9 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII RxD[1] */
+ /* PB8 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII RxD[0] */
+ /* PB7 */ { 1, 1, 0, 1, 0, 0 }, /* FCC3 MII TxD[3] */
+ /* PB6 */ { 1, 1, 0, 1, 0, 0 }, /* FCC3 MII TxD[2] */
+ /* PB5 */ { 1, 1, 0, 1, 0, 0 }, /* FCC3 MII TxD[1] */
+ /* PB4 */ { 1, 1, 0, 1, 0, 0 }, /* FCC3 MII TxD[0] */
+ /* PB3 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
+ /* PB2 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
+ /* PB1 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
+ /* PB0 */ { 0, 0, 0, 0, 0, 0 } /* pin doesn't exist */
+ },
+
+ /* Port C configuration */
+ { /* conf ppar psor pdir podr pdat */
+ /* PC31 */ { 1, 1, 0, 0, 0, 0 }, /* TDM RXCLK1 */
+ /* PC30 */ { 1, 1, 0, 0, 0, 0 }, /* TDM TXCLK1 */
+ /* PC29 */ { 1, 1, 0, 0, 0, 0 }, /* TDM RXCLK3 */
+ /* PC28 */ { 1, 1, 0, 0, 0, 0 }, /* TDM TXCLK3 */
+ /* PC27 */ { 1, 1, 0, 0, 0, 0 }, /* TDM RXCLK2 */
+ /* PC26 */ { 1, 1, 0, 0, 0, 0 }, /* TDM TXCLK2 */
+ /* PC25 */ { 0, 0, 0, 1, 0, 0 },
+ /* PC24 */ { 0, 0, 0, 1, 0, 0 },
+ /* PC23 */ { 0, 1, 0, 1, 0, 0 },
+ /* PC22 */ { 0, 1, 0, 0, 0, 0 },
+ /* PC21 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 MII TX_CLK */
+ /* PC20 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 MII RX_CLK */
+ /* PC19 */ { 0, 1, 0, 0, 0, 0 },
+ /* PC18 */ { 0, 1, 0, 0, 0, 0 },
+ /* PC17 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII RX_CLK */
+ /* PC16 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII TX_CLK */
+ /* PC15 */ { 0, 0, 0, 1, 0, 0 },
+ /* PC14 */ { 0, 1, 0, 0, 0, 0 },
+ /* PC13 */ { 0, 0, 0, 1, 0, 0 }, /* RES_PHY_L */
+ /* PC12 */ { 0, 0, 0, 1, 0, 0 },
+ /* PC11 */ { 0, 0, 0, 1, 0, 0 },
+ /* PC10 */ { 0, 0, 0, 1, 0, 0 },
+ /* PC9 */ { 0, 1, 1, 0, 0, 0 }, /* TDM_A2 L1TSYNC */
+ /* PC8 */ { 0, 0, 0, 0, 0, 0 }, /* FEP_RDY */
+ /* PC7 */ { 0, 0, 0, 0, 0, 0 },
+ /* PC6 */ { 0, 0, 0, 0, 0, 0 }, /* UC4_ALARM_L */
+ /* PC5 */ { 0, 0, 0, 0, 0, 0 }, /* UC3_ALARM_L */
+ /* PC4 */ { 0, 0, 0, 0, 0, 0 }, /* UC2_ALARM_L */
+ /* PC3 */ { 0, 0, 0, 1, 0, 0 }, /* RES_MISC_L */
+ /* PC2 */ { 0, 0, 0, 1, 0, 0 }, /* RES_OH_L */
+ /* PC1 */ { 0, 0, 0, 1, 0, 0 }, /* RES_DOHM_L */
+ /* PC0 */ { 0, 0, 0, 1, 0, 0 }, /* RES_FIOX_L */
+ },
+
+ /* Port D configuration */
+ { /* conf ppar psor pdir podr pdat */
+ /* PD31 */ { 1, 1, 0, 0, 0, 0 }, /* SCC1 EN RxD */
+ /* PD30 */ { 1, 1, 1, 1, 0, 0 }, /* SCC1 EN TxD */
+ /* PD29 */ { 0, 0, 0, 0, 0, 0 }, /* INIT_F */
+ /* PD28 */ { 0, 0, 0, 1, 0, 0 }, /* DONE_F */
+ /* PD27 */ { 0, 0, 0, 0, 0, 0 }, /* INIT_D */
+ /* PD26 */ { 0, 0, 0, 1, 0, 0 }, /* DONE_D */
+ /* PD25 */ { 0, 0, 0, 1, 0, 0 },
+ /* PD24 */ { 0, 0, 0, 1, 0, 0 },
+ /* PD23 */ { 0, 0, 0, 1, 0, 0 },
+ /* PD22 */ { 1, 1, 1, 0, 0, 0 }, /* TDM_A2 L1TXD */
+ /* PD21 */ { 1, 1, 1, 0, 0, 0 }, /* TDM_A2 L1RXD */
+ /* PD20 */ { 1, 1, 1, 0, 0, 0 }, /* TDM_A2 L1RSYNC */
+ /* PD19 */ { 1, 1, 1, 0, 0, 0 }, /* SPI SPISEL */
+ /* PD18 */ { 1, 1, 1, 0, 0, 0 }, /* SPI SPICLK */
+ /* PD17 */ { 1, 1, 1, 0, 0, 0 }, /* SPI SPIMOSI */
+ /* PD16 */ { 1, 1, 1, 0, 0, 0 }, /* SPI SPIMOSO */
+#if defined(CONFIG_SOFT_I2C)
+ /* PD15 */ { 1, 0, 0, 1, 1, 1 }, /* I2C SDA */
+ /* PD14 */ { 1, 0, 0, 1, 1, 1 }, /* I2C SCL */
+#else
+#if defined(CONFIG_HARD_I2C)
+ /* PD15 */ { 1, 1, 1, 0, 1, 0 }, /* I2C SDA */
+ /* PD14 */ { 1, 1, 1, 0, 1, 0 }, /* I2C SCL */
+#else /* normal I/O port pins */
+ /* PD15 */ { 0, 1, 1, 0, 1, 0 }, /* I2C SDA */
+ /* PD14 */ { 0, 1, 1, 0, 1, 0 }, /* I2C SCL */
+#endif
+#endif
+ /* PD13 */ { 1, 1, 1, 0, 0, 0 }, /* TDM_B1 L1TXD */
+ /* PD12 */ { 1, 1, 1, 0, 0, 0 }, /* TDM_B1 L1RXD */
+ /* PD11 */ { 1, 1, 1, 0, 0, 0 }, /* TDM_B1 L1TSYNC */
+ /* PD10 */ { 1, 1, 1, 0, 0, 0 }, /* TDM_B1 L1RSYNC */
+ /* PD9 */ { 1, 1, 0, 1, 0, 0 }, /* SMC1 TXD */
+ /* PD8 */ { 1, 1, 0, 0, 0, 0 }, /* SMC1 RXD */
+ /* PD7 */ { 0, 0, 0, 1, 0, 1 },
+ /* PD6 */ { 0, 0, 0, 1, 0, 1 },
+ /* PD5 */ { 0, 0, 0, 1, 0, 0 }, /* PROG_F */
+ /* PD4 */ { 0, 0, 0, 1, 0, 0 }, /* PROG_D */
+ /* PD3 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
+ /* PD2 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
+ /* PD1 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
+ /* PD0 */ { 0, 0, 0, 0, 0, 0 } /* pin doesn't exist */
+ }
+};
+
+/* ------------------------------------------------------------------------- */
+
+/* Check Board Identity:
+ */
+int checkboard (void)
+{
+ unsigned char str[64];
+ int i = getenv_r ("serial#", str, sizeof (str));
+
+ puts ("Board: ");
+
+ if (!i || strncmp (str, "TQM8260", 7)) {
+ puts ("### No HW ID - assuming TQM8260\n");
+ return (0);
+ }
+
+ puts (str);
+ putc ('\n');
+
+ return 0;
+}
+
+/* ------------------------------------------------------------------------- */
+
+/* Try SDRAM initialization with P/LSDMR=sdmr and ORx=orx
+ *
+ * This routine performs standard 8260 initialization sequence
+ * and calculates the available memory size. It may be called
+ * several times to try different SDRAM configurations on both
+ * 60x and local buses.
+ */
+static long int try_init (volatile memctl8260_t * memctl, ulong sdmr,
+ ulong orx, volatile uchar * base)
+{
+ volatile uchar c = 0xff;
+ ulong cnt, val;
+ volatile ulong *addr;
+ volatile uint *sdmr_ptr;
+ volatile uint *orx_ptr;
+ int i;
+ ulong save[32]; /* to make test non-destructive */
+ ulong maxsize;
+
+ /* We must be able to test a location outsize the maximum legal size
+ * to find out THAT we are outside; but this address still has to be
+ * mapped by the controller. That means, that the initial mapping has
+ * to be (at least) twice as large as the maximum expected size.
+ */
+ maxsize = (1 + (~orx | 0x7fff)) / 2;
+
+ /* Since CFG_SDRAM_BASE is always 0 (??), we assume that
+ * we are configuring CS1 if base != 0
+ */
+ sdmr_ptr = base ? &memctl->memc_lsdmr : &memctl->memc_psdmr;
+ orx_ptr = base ? &memctl->memc_or2 : &memctl->memc_or1;
+
+ *orx_ptr = orx;
+
+ /*
+ * Quote from 8260 UM (10.4.2 SDRAM Power-On Initialization, 10-35):
+ *
+ * "At system reset, initialization software must set up the
+ * programmable parameters in the memory controller banks registers
+ * (ORx, BRx, P/LSDMR). After all memory parameters are configured,
+ * system software should execute the following initialization sequence
+ * for each SDRAM device.
+ *
+ * 1. Issue a PRECHARGE-ALL-BANKS command
+ * 2. Issue eight CBR REFRESH commands
+ * 3. Issue a MODE-SET command to initialize the mode register
+ *
+ * The initial commands are executed by setting P/LSDMR[OP] and
+ * accessing the SDRAM with a single-byte transaction."
+ *
+ * The appropriate BRx/ORx registers have already been set when we
+ * get here. The SDRAM can be accessed at the address CFG_SDRAM_BASE.
+ */
+
+ *sdmr_ptr = sdmr | PSDMR_OP_PREA;
+ *base = c;
+
+ *sdmr_ptr = sdmr | PSDMR_OP_CBRR;
+ for (i = 0; i < 8; i++)
+ *base = c;
+
+ *sdmr_ptr = sdmr | PSDMR_OP_MRW;
+ *(base + CFG_MRS_OFFS) = c; /* setting MR on address lines */
+
+ *sdmr_ptr = sdmr | PSDMR_OP_NORM | PSDMR_RFEN;
+ *base = c;
+
+ /*
+ * Check memory range for valid RAM. A simple memory test determines
+ * the actually available RAM size between addresses `base' and
+ * `base + maxsize'. Some (not all) hardware errors are detected:
+ * - short between address lines
+ * - short between data lines
+ */
+ i = 0;
+ for (cnt = maxsize / sizeof (long); cnt > 0; cnt >>= 1) {
+ addr = (volatile ulong *) base + cnt; /* pointer arith! */
+ save[i++] = *addr;
+ *addr = ~cnt;
+ }
+
+ addr = (volatile ulong *) base;
+ save[i] = *addr;
+ *addr = 0;
+
+ if ((val = *addr) != 0) {
+ *addr = save[i];
+ return (0);
+ }
+
+ for (cnt = 1; cnt <= maxsize / sizeof (long); cnt <<= 1) {
+ addr = (volatile ulong *) base + cnt; /* pointer arith! */
+ val = *addr;
+ *addr = save[--i];
+ if (val != ~cnt) {
+ /* Write the actual size to ORx
+ */
+ *orx_ptr = orx | ~(cnt * sizeof (long) - 1);
+ return (cnt * sizeof (long));
+ }
+ }
+ return (maxsize);
+}
+
+/*
+ * Test Power-On-Reset.
+ */
+int power_on_reset (void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ /* Test Reset Status Register */
+ return gd->reset_status & RSR_CSRS ? 0 : 1;
+}
+
+long int initdram (int board_type)
+{
+ volatile immap_t *immap = (immap_t *) CFG_IMMR;
+ volatile memctl8260_t *memctl = &immap->im_memctl;
+
+#ifndef CFG_RAMBOOT
+ long size8, size9;
+#endif
+ long psize, lsize;
+
+ psize = 16 * 1024 * 1024;
+ lsize = 0;
+
+ memctl->memc_psrt = CFG_PSRT;
+ memctl->memc_mptpr = CFG_MPTPR;
+
+#if 0 /* Just for debugging */
+#define prt_br_or(brX,orX) do { \
+ ulong start = memctl->memc_ ## brX & 0xFFFF8000; \
+ ulong sizem = ~memctl->memc_ ## orX | 0x00007FFF; \
+ printf ("\n" \
+ #brX " 0x%08x " #orX " 0x%08x " \
+ "==> 0x%08lx ... 0x%08lx = %ld MB\n", \
+ memctl->memc_ ## brX, memctl->memc_ ## orX, \
+ start, start+sizem, (sizem+1)>>20); \
+ } while (0)
+ prt_br_or (br0, or0);
+ prt_br_or (br1, or1);
+ prt_br_or (br2, or2);
+ prt_br_or (br3, or3);
+#endif
+
+#ifndef CFG_RAMBOOT
+ /* 60x SDRAM setup:
+ */
+ size8 = try_init (memctl, CFG_PSDMR_8COL, CFG_OR1_8COL,
+ (uchar *) CFG_SDRAM_BASE);
+ size9 = try_init (memctl, CFG_PSDMR_9COL, CFG_OR1_9COL,
+ (uchar *) CFG_SDRAM_BASE);
+
+ if (size8 < size9) {
+ psize = size9;
+ printf ("(60x:9COL - %ld MB, ", psize >> 20);
+ } else {
+ psize = try_init (memctl, CFG_PSDMR_8COL, CFG_OR1_8COL,
+ (uchar *) CFG_SDRAM_BASE);
+ printf ("(60x:8COL - %ld MB, ", psize >> 20);
+ }
+
+ /* Local SDRAM setup:
+ */
+#ifdef CFG_INIT_LOCAL_SDRAM
+ memctl->memc_lsrt = CFG_LSRT;
+ size8 = try_init (memctl, CFG_LSDMR_8COL, CFG_OR2_8COL,
+ (uchar *) SDRAM_BASE2_PRELIM);
+ size9 = try_init (memctl, CFG_LSDMR_9COL, CFG_OR2_9COL,
+ (uchar *) SDRAM_BASE2_PRELIM);
+
+ if (size8 < size9) {
+ lsize = size9;
+ printf ("Local:9COL - %ld MB) using ", lsize >> 20);
+ } else {
+ lsize = try_init (memctl, CFG_LSDMR_8COL, CFG_OR2_8COL,
+ (uchar *) SDRAM_BASE2_PRELIM);
+ printf ("Local:8COL - %ld MB) using ", lsize >> 20);
+ }
+
+#if 0
+ /* Set up BR2 so that the local SDRAM goes
+ * right after the 60x SDRAM
+ */
+ memctl->memc_br2 = (CFG_BR2_PRELIM & ~BRx_BA_MSK) |
+ (CFG_SDRAM_BASE + psize);
+#endif
+#endif /* CFG_INIT_LOCAL_SDRAM */
+#endif /* CFG_RAMBOOT */
+
+ icache_enable ();
+
+ config_scoh_cs ();
+
+ return (psize);
+}
+
+/* ------------------------------------------------------------------------- */
+
+static void config_scoh_cs (void)
+{
+ volatile immap_t *immr = (immap_t *) CFG_IMMR;
+ volatile memctl8260_t *memctl = &immr->im_memctl;
+ volatile can_reg_t *can = (volatile can_reg_t *) CFG_CAN0_BASE;
+ volatile uint tmp, i;
+
+ /* Initialize OR3 / BR3 for CAN Bus Controller 0 */
+ memctl->memc_or3 = CFG_CAN0_OR3;
+ memctl->memc_br3 = CFG_CAN0_BR3;
+ /* Initialize OR4 / BR4 for CAN Bus Controller 1 */
+ memctl->memc_or4 = CFG_CAN1_OR4;
+ memctl->memc_br4 = CFG_CAN1_BR4;
+
+ /* Initialize MAMR to write in the array at address 0x0 */
+ memctl->memc_mamr = 0x00 | MxMR_OP_WARR | MxMR_GPL_x4DIS;
+
+ /* Initialize UPMA for CAN: single read */
+ memctl->memc_mdr = 0xcffeec00;
+ udelay (1); /* Necessary to have the data correct in the UPM array!!!! */
+ /* The read on the CAN controller write the data of mdr in UPMA array. */
+ /* The index to the array will be incremented automatically
+ through this read */
+ tmp = can->cpu_interface;
+
+ memctl->memc_mdr = 0x0ffcec00;
+ udelay (1);
+ tmp = can->cpu_interface;
+
+ memctl->memc_mdr = 0x0ffcec00;
+ udelay (1);
+ tmp = can->cpu_interface;
+
+ memctl->memc_mdr = 0x0ffcec00;
+ udelay (1);
+ tmp = can->cpu_interface;
+
+ memctl->memc_mdr = 0x0ffcec00;
+ udelay (1);
+ tmp = can->cpu_interface;
+
+ memctl->memc_mdr = 0x0ffcfc00;
+ udelay (1);
+ tmp = can->cpu_interface;
+
+ memctl->memc_mdr = 0x0ffcfc00;
+ udelay (1);
+ tmp = can->cpu_interface;
+
+ memctl->memc_mdr = 0xfffdec07;
+ udelay (1);
+ tmp = can->cpu_interface;
+
+
+ /* Initialize MAMR to write in the array at address 0x18 */
+ memctl->memc_mamr = 0x18 | MxMR_OP_WARR | MxMR_GPL_x4DIS;
+
+ /* Initialize UPMA for CAN: single write */
+ memctl->memc_mdr = 0xfcffec00;
+ udelay (1);
+ tmp = can->cpu_interface;
+
+ memctl->memc_mdr = 0x00ffec00;
+ udelay (1);
+ tmp = can->cpu_interface;
+
+ memctl->memc_mdr = 0x00ffec00;
+ udelay (1);
+ tmp = can->cpu_interface;
+
+ memctl->memc_mdr = 0x00ffec00;
+ udelay (1);
+ tmp = can->cpu_interface;
+
+ memctl->memc_mdr = 0x00ffec00;
+ udelay (1);
+ tmp = can->cpu_interface;
+
+ memctl->memc_mdr = 0x00fffc00;
+ udelay (1);
+ tmp = can->cpu_interface;
+
+ memctl->memc_mdr = 0x00fffc00;
+ udelay (1);
+ tmp = can->cpu_interface;
+
+ memctl->memc_mdr = 0x30ffec07;
+ udelay (1);
+ tmp = can->cpu_interface;
+
+ /* Initialize MAMR */
+ memctl->memc_mamr = MxMR_GPL_x4DIS; /* GPL_B4 ouput line Disable */
+
+
+ /* Initialize OR5 / BR5 for the extended EEPROM Bank0 */
+ memctl->memc_or5 = CFG_EXTPROM_OR5;
+ memctl->memc_br5 = CFG_EXTPROM_BR5;
+ /* Initialize OR6 / BR6 for the extended EEPROM Bank1 */
+ memctl->memc_or6 = CFG_EXTPROM_OR6;
+ memctl->memc_br6 = CFG_EXTPROM_BR6;
+
+ /* Initialize OR7 / BR7 for the Glue Logic */
+ memctl->memc_or7 = CFG_FIOX_OR7;
+ memctl->memc_br7 = CFG_FIOX_BR7;
+
+ /* Initialize OR8 / BR8 for the DOH Logic */
+ memctl->memc_or8 = CFG_FDOHM_OR8;
+ memctl->memc_br8 = CFG_FDOHM_BR8;
+
+ DEBUGF ("OR0 %08x BR0 %08x\n", memctl->memc_or0, memctl->memc_br0);
+ DEBUGF ("OR1 %08x BR1 %08x\n", memctl->memc_or1, memctl->memc_br1);
+ DEBUGF ("OR2 %08x BR2 %08x\n", memctl->memc_or2, memctl->memc_br2);
+ DEBUGF ("OR3 %08x BR3 %08x\n", memctl->memc_or3, memctl->memc_br3);
+ DEBUGF ("OR4 %08x BR4 %08x\n", memctl->memc_or4, memctl->memc_br4);
+ DEBUGF ("OR5 %08x BR5 %08x\n", memctl->memc_or5, memctl->memc_br5);
+ DEBUGF ("OR6 %08x BR6 %08x\n", memctl->memc_or6, memctl->memc_br6);
+ DEBUGF ("OR7 %08x BR7 %08x\n", memctl->memc_or7, memctl->memc_br7);
+ DEBUGF ("OR8 %08x BR8 %08x\n", memctl->memc_or8, memctl->memc_br8);
+
+ DEBUGF ("UPMA addr 0x0\n");
+ memctl->memc_mamr = 0x00 | MxMR_OP_RARR | MxMR_GPL_x4DIS;
+ for (i = 0; i < 0x8; i++) {
+ tmp = can->cpu_interface;
+ udelay (1);
+ DEBUGF (" %08x ", memctl->memc_mdr);
+ }
+ DEBUGF ("\nUPMA addr 0x18\n");
+ memctl->memc_mamr = 0x18 | MxMR_OP_RARR | MxMR_GPL_x4DIS;
+ for (i = 0; i < 0x8; i++) {
+ tmp = can->cpu_interface;
+ udelay (1);
+ DEBUGF (" %08x ", memctl->memc_mdr);
+ }
+ DEBUGF ("\n");
+ memctl->memc_mamr = MxMR_GPL_x4DIS;
+}
+
+/* ------------------------------------------------------------------------- */
+
+int misc_init_r (void)
+{
+ fpga_init ();
+ return (0);
+}
+
+/* ------------------------------------------------------------------------- */
--- /dev/null
+/*
+ * (C) Copyright 2001
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <mpc8xx.h>
+#include <commproc.h>
+#include <i2c.h>
+#include <command.h>
+#include <cmd_bsp.h>
+
+/* ------------------------------------------------------------------------- */
+
+static long int dram_size (long int, long int *, long int);
+static void puma_status (void);
+static void puma_set_mode (int mode);
+static int puma_init_done (void);
+static void puma_load (ulong addr, ulong len);
+
+/* ------------------------------------------------------------------------- */
+
+#define _NOT_USED_ 0xFFFFFFFF
+
+/*
+ * 50 MHz SDRAM access using UPM A
+ */
+const uint sdram_table[] =
+{
+ /*
+ * Single Read. (Offset 0 in UPM RAM)
+ */
+ 0x1f0dfc04, 0xeeafbc04, 0x11af7c04, 0xefbeec00,
+ 0x1ffddc47, /* last */
+ /*
+ * SDRAM Initialization (offset 5 in UPM RAM)
+ *
+ * This is no UPM entry point. The following definition uses
+ * the remaining space to establish an initialization
+ * sequence, which is executed by a RUN command.
+ *
+ */
+ 0x1ffddc35, 0xefceac34, 0x1f3d5c35, /* last */
+ /*
+ * Burst Read. (Offset 8 in UPM RAM)
+ */
+ 0x1f0dfc04, 0xeeafbc04, 0x10af7c04, 0xf0affc00,
+ 0xf0affc00, 0xf1affc00, 0xefbeec00, 0x1ffddc47, /* last */
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+
+ /*
+ * Single Write. (Offset 18 in UPM RAM)
+ */
+ 0x1f0dfc04, 0xeeafac00, 0x01be4c04, 0x1ffddc47, /* last */
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ /*
+ * Burst Write. (Offset 20 in UPM RAM)
+ */
+ 0x1f0dfc04, 0xeeafac00, 0x10af5c00, 0xf0affc00,
+ 0xf0affc00, 0xe1beec04, 0x1ffddc47, /* last */
+ _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ /*
+ * Refresh (Offset 30 in UPM RAM)
+ */
+ 0x1ffd7c84, 0xfffffc04, 0xfffffc04, 0xfffffc04,
+ 0xfffffc84, 0xfffffc07, /* last */
+ _NOT_USED_, _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ /*
+ * Exception. (Offset 3c in UPM RAM)
+ */
+ 0x7ffffc07, /* last */
+ _NOT_USED_, _NOT_USED_, _NOT_USED_,
+};
+
+/* ------------------------------------------------------------------------- */
+
+/*
+ * PUMA access using UPM B
+ */
+const uint puma_table[] =
+{
+ /*
+ * Single Read. (Offset 0 in UPM RAM)
+ */
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ _NOT_USED_,
+ /*
+ * Precharge and MRS
+ */
+ _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ /*
+ * Burst Read. (Offset 8 in UPM RAM)
+ */
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ /*
+ * Single Write. (Offset 18 in UPM RAM)
+ */
+ 0x0ffff804, 0x0ffff400, 0x3ffffc47, /* last */
+ _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ /*
+ * Burst Write. (Offset 20 in UPM RAM)
+ */
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ /*
+ * Refresh (Offset 30 in UPM RAM)
+ */
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ /*
+ * Exception. (Offset 3c in UPM RAM)
+ */
+ 0x7ffffc07, /* last */
+ _NOT_USED_, _NOT_USED_, _NOT_USED_,
+};
+
+/* ------------------------------------------------------------------------- */
+
+
+/*
+ * Check Board Identity:
+ *
+ */
+
+int checkboard (void)
+{
+ puts ("Board: Siemens PCU E\n");
+ return (0);
+}
+
+/* ------------------------------------------------------------------------- */
+
+long int
+initdram (int board_type)
+{
+ volatile immap_t *immr = (immap_t *)CFG_IMMR;
+ volatile memctl8xx_t *memctl = &immr->im_memctl;
+ long int size_b0, reg;
+ int i;
+
+ /*
+ * Configure UPMA for SDRAM
+ */
+ upmconfig(UPMA, (uint *)sdram_table, sizeof(sdram_table)/sizeof(uint));
+
+ memctl->memc_mptpr = CFG_MPTPR;
+
+ /* burst length=4, burst type=sequential, CAS latency=2 */
+ memctl->memc_mar = 0x00000088;
+
+ /*
+ * Map controller bank 2 to the SDRAM bank at preliminary address.
+ */
+#if PCU_E_WITH_SWAPPED_CS /* XXX */
+ memctl->memc_or5 = CFG_OR5_PRELIM;
+ memctl->memc_br5 = CFG_BR5_PRELIM;
+#else /* XXX */
+ memctl->memc_or2 = CFG_OR2_PRELIM;
+ memctl->memc_br2 = CFG_BR2_PRELIM;
+#endif /* XXX */
+
+ /* initialize memory address register */
+ memctl->memc_mamr = CFG_MAMR; /* refresh not enabled yet */
+
+ /* mode initialization (offset 5) */
+#if PCU_E_WITH_SWAPPED_CS /* XXX */
+ udelay(200); /* 0x8000A105 */
+ memctl->memc_mcr = MCR_OP_RUN | MCR_MB_CS5 | MCR_MLCF(1) | MCR_MAD(0x05);
+#else /* XXX */
+ udelay(200); /* 0x80004105 */
+ memctl->memc_mcr = MCR_OP_RUN | MCR_MB_CS2 | MCR_MLCF(1) | MCR_MAD(0x05);
+#endif /* XXX */
+
+ /* run 2 refresh sequence with 4-beat refresh burst (offset 0x30) */
+#if PCU_E_WITH_SWAPPED_CS /* XXX */
+ udelay(1); /* 0x8000A830 */
+ memctl->memc_mcr = MCR_OP_RUN | MCR_MB_CS5 | MCR_MLCF(8) | MCR_MAD(0x30);
+#else /* XXX */
+ udelay(1); /* 0x80004830 */
+ memctl->memc_mcr = MCR_OP_RUN | MCR_MB_CS2 | MCR_MLCF(8) | MCR_MAD(0x30);
+#endif /* XXX */
+
+#if PCU_E_WITH_SWAPPED_CS /* XXX */
+ udelay(1); /* 0x8000A106 */
+ memctl->memc_mcr = MCR_OP_RUN | MCR_MB_CS5 | MCR_MLCF(1) | MCR_MAD(0x06);
+#else /* XXX */
+ udelay(1); /* 0x80004106 */
+ memctl->memc_mcr = MCR_OP_RUN | MCR_MB_CS2 | MCR_MLCF(1) | MCR_MAD(0x06);
+#endif /* XXX */
+
+ reg = memctl->memc_mamr;
+ reg &= ~MAMR_TLFB_MSK; /* switch timer loop ... */
+ reg |= MAMR_TLFB_4X; /* ... to 4x */
+ reg |= MAMR_PTBE; /* enable refresh */
+ memctl->memc_mamr = reg;
+
+ udelay(200);
+
+ /* Need at least 10 DRAM accesses to stabilize */
+ for (i=0; i<10; ++i) {
+#if PCU_E_WITH_SWAPPED_CS /* XXX */
+ volatile unsigned long *addr = (volatile unsigned long *)SDRAM_BASE5_PRELIM;
+#else /* XXX */
+ volatile unsigned long *addr = (volatile unsigned long *)SDRAM_BASE2_PRELIM;
+#endif /* XXX */
+ unsigned long val;
+
+ val = *(addr + i);
+ *(addr + i) = val;
+ }
+
+ /*
+ * Check Bank 0 Memory Size for re-configuration
+ */
+#if PCU_E_WITH_SWAPPED_CS /* XXX */
+ size_b0 = dram_size (CFG_MAMR, (ulong *)SDRAM_BASE5_PRELIM, SDRAM_MAX_SIZE);
+#else /* XXX */
+ size_b0 = dram_size (CFG_MAMR, (ulong *)SDRAM_BASE2_PRELIM, SDRAM_MAX_SIZE);
+#endif /* XXX */
+
+ memctl->memc_mamr = CFG_MAMR | MAMR_PTBE;
+
+ /*
+ * Final mapping:
+ */
+
+#if PCU_E_WITH_SWAPPED_CS /* XXX */
+ memctl->memc_or5 = ((-size_b0) & 0xFFFF0000) | SDRAM_TIMING;
+ memctl->memc_br5 = (CFG_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMA | BR_V;
+#else /* XXX */
+ memctl->memc_or2 = ((-size_b0) & 0xFFFF0000) | SDRAM_TIMING;
+ memctl->memc_br2 = (CFG_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMA | BR_V;
+#endif /* XXX */
+ udelay(1000);
+
+ /*
+ * Configure UPMB for PUMA
+ */
+ upmconfig(UPMB, (uint *)puma_table, sizeof(puma_table)/sizeof(uint));
+
+ return (size_b0);
+}
+
+/* ------------------------------------------------------------------------- */
+
+/*
+ * Check memory range for valid RAM. A simple memory test determines
+ * the actually available RAM size between addresses `base' and
+ * `base + maxsize'. Some (not all) hardware errors are detected:
+ * - short between address lines
+ * - short between data lines
+ */
+
+static long int dram_size (long int mamr_value, long int *base, long int maxsize)
+{
+ volatile immap_t *immr = (immap_t *)CFG_IMMR;
+ volatile memctl8xx_t *memctl = &immr->im_memctl;
+ volatile long int *addr;
+ ulong cnt, val;
+ ulong save[32]; /* to make test non-destructive */
+ unsigned char i = 0;
+
+ memctl->memc_mamr = mamr_value;
+
+ for (cnt = maxsize/sizeof(long); cnt > 0; cnt >>= 1) {
+ addr = base + cnt; /* pointer arith! */
+
+ save[i++] = *addr;
+ *addr = ~cnt;
+ }
+
+ /* write 0 to base address */
+ addr = base;
+ save[i] = *addr;
+ *addr = 0;
+
+ /* check at base address */
+ if ((val = *addr) != 0) {
+ *addr = save[i];
+ return (0);
+ }
+
+ for (cnt = 1; cnt <= maxsize/sizeof(long); cnt <<= 1) {
+ addr = base + cnt; /* pointer arith! */
+
+ val = *addr;
+ *addr = save[--i];
+
+ if (val != (~cnt)) {
+ return (cnt * sizeof(long));
+ }
+ }
+ return (maxsize);
+}
+
+/* ------------------------------------------------------------------------- */
+
+#if PCU_E_WITH_SWAPPED_CS /* XXX */
+#define ETH_CFG_BITS (CFG_PB_ETH_CFG1 | CFG_PB_ETH_CFG2 | CFG_PB_ETH_CFG3 )
+#else /* XXX */
+#define ETH_CFG_BITS (CFG_PB_ETH_MDDIS | CFG_PB_ETH_CFG1 | \
+ CFG_PB_ETH_CFG2 | CFG_PB_ETH_CFG3 )
+#endif /* XXX */
+
+#define ETH_ALL_BITS (ETH_CFG_BITS | CFG_PB_ETH_POWERDOWN | CFG_PB_ETH_RESET)
+
+void reset_phy(void)
+{
+ immap_t *immr = (immap_t *)CFG_IMMR;
+ ulong value;
+
+ /* Configure all needed port pins for GPIO */
+#if PCU_E_WITH_SWAPPED_CS /* XXX */
+# if CFG_ETH_MDDIS_VALUE
+ immr->im_ioport.iop_padat |= CFG_PA_ETH_MDDIS;
+# else
+ immr->im_ioport.iop_padat &= ~(CFG_PA_ETH_MDDIS); /* Set low */
+# endif
+ immr->im_ioport.iop_papar &= ~(CFG_PA_ETH_MDDIS); /* GPIO */
+ immr->im_ioport.iop_paodr &= ~(CFG_PA_ETH_MDDIS); /* active output */
+ immr->im_ioport.iop_padir |= CFG_PA_ETH_MDDIS; /* output */
+#endif /* XXX */
+ immr->im_cpm.cp_pbpar &= ~(ETH_ALL_BITS); /* GPIO */
+ immr->im_cpm.cp_pbodr &= ~(ETH_ALL_BITS); /* active output */
+
+ value = immr->im_cpm.cp_pbdat;
+
+ /* Assert Powerdown and Reset signals */
+ value |= CFG_PB_ETH_POWERDOWN;
+ value &= ~(CFG_PB_ETH_RESET);
+
+ /* PHY configuration includes MDDIS and CFG1 ... CFG3 */
+#if !PCU_E_WITH_SWAPPED_CS
+# if CFG_ETH_MDDIS_VALUE
+ value |= CFG_PB_ETH_MDDIS;
+# else
+ value &= ~(CFG_PB_ETH_MDDIS);
+# endif
+#endif
+#if CFG_ETH_CFG1_VALUE
+ value |= CFG_PB_ETH_CFG1;
+#else
+ value &= ~(CFG_PB_ETH_CFG1);
+#endif
+#if CFG_ETH_CFG2_VALUE
+ value |= CFG_PB_ETH_CFG2;
+#else
+ value &= ~(CFG_PB_ETH_CFG2);
+#endif
+#if CFG_ETH_CFG3_VALUE
+ value |= CFG_PB_ETH_CFG3;
+#else
+ value &= ~(CFG_PB_ETH_CFG3);
+#endif
+
+ /* Drive output signals to initial state */
+ immr->im_cpm.cp_pbdat = value;
+ immr->im_cpm.cp_pbdir |= ETH_ALL_BITS;
+ udelay (10000);
+
+ /* De-assert Ethernet Powerdown */
+ immr->im_cpm.cp_pbdat &= ~(CFG_PB_ETH_POWERDOWN); /* Enable PHY power */
+ udelay (10000);
+
+ /* de-assert RESET signal of PHY */
+ immr->im_cpm.cp_pbdat |= CFG_PB_ETH_RESET;
+ udelay (1000);
+}
+
+/*-----------------------------------------------------------------------
+ * Board Special Commands: access functions for "PUMA" FPGA
+ */
+#if (CONFIG_COMMANDS & CFG_CMD_BSP)
+
+#define PUMA_READ_MODE 0
+#define PUMA_LOAD_MODE 1
+
+int do_puma (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ ulong addr, len;
+
+ switch (argc) {
+ case 2: /* PUMA reset */
+ if (strncmp(argv[1], "stat", 4) == 0) { /* Reset */
+ puma_status ();
+ return 0;
+ }
+ break;
+ case 4: /* PUMA load addr len */
+ if (strcmp(argv[1],"load") != 0)
+ break;
+
+ addr = simple_strtoul(argv[2], NULL, 16);
+ len = simple_strtoul(argv[3], NULL, 16);
+
+ printf ("PUMA load: addr %08lX len %ld (0x%lX): ",
+ addr, len, len);
+ puma_load (addr, len);
+
+ return 0;
+ default:
+ break;
+ }
+ printf ("Usage:\n%s\n", cmdtp->usage);
+ return 1;
+}
+
+#endif /* CFG_CMD_BSP */
+
+/* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . */
+
+static void puma_set_mode (int mode)
+{
+ volatile immap_t *immr = (immap_t *)CFG_IMMR;
+ volatile memctl8xx_t *memctl = &immr->im_memctl;
+
+ /* disable PUMA in memory controller */
+#if PCU_E_WITH_SWAPPED_CS /* XXX */
+ memctl->memc_br3 = 0;
+#else /* XXX */
+ memctl->memc_br4 = 0;
+#endif /* XXX */
+
+ switch (mode) {
+ case PUMA_READ_MODE:
+#if PCU_E_WITH_SWAPPED_CS /* XXX */
+ memctl->memc_or3 = PUMA_CONF_OR_READ;
+ memctl->memc_br3 = PUMA_CONF_BR_READ;
+#else /* XXX */
+ memctl->memc_or4 = PUMA_CONF_OR_READ;
+ memctl->memc_br4 = PUMA_CONF_BR_READ;
+#endif /* XXX */
+ break;
+ case PUMA_LOAD_MODE:
+#if PCU_E_WITH_SWAPPED_CS /* XXX */
+ memctl->memc_or3 = PUMA_CONF_OR_LOAD;
+ memctl->memc_br3 = PUMA_CONF_BR_LOAD;
+#else /* XXX */
+ memctl->memc_or4 = PUMA_CONF_OR_READ;
+ memctl->memc_br4 = PUMA_CONF_BR_READ;
+#endif /* XXX */
+ break;
+ }
+}
+
+/* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . */
+
+#define PUMA_INIT_TIMEOUT 1000 /* max. 1000 ms = 1 second */
+
+static void puma_load (ulong addr, ulong len)
+{
+ volatile immap_t *immr = (immap_t *)CFG_IMMR;
+ volatile uchar *fpga_addr = (volatile uchar *)PUMA_CONF_BASE; /* XXX ??? */
+ uchar *data = (uchar *)addr;
+ int i;
+
+ /* align length */
+ if (len & 1)
+ ++len;
+
+ /* Reset FPGA */
+ immr->im_ioport.iop_pcpar &= ~(CFG_PC_PUMA_INIT); /* make input */
+ immr->im_ioport.iop_pcso &= ~(CFG_PC_PUMA_INIT);
+ immr->im_ioport.iop_pcdir &= ~(CFG_PC_PUMA_INIT);
+
+#if PCU_E_WITH_SWAPPED_CS /* XXX */
+ immr->im_cpm.cp_pbpar &= ~(CFG_PB_PUMA_PROG); /* GPIO */
+ immr->im_cpm.cp_pbodr &= ~(CFG_PB_PUMA_PROG); /* active output */
+ immr->im_cpm.cp_pbdat &= ~(CFG_PB_PUMA_PROG); /* Set low */
+ immr->im_cpm.cp_pbdir |= CFG_PB_PUMA_PROG; /* output */
+#else
+ immr->im_ioport.iop_papar &= ~(CFG_PA_PUMA_PROG); /* GPIO */
+ immr->im_ioport.iop_padat &= ~(CFG_PA_PUMA_PROG); /* Set low */
+ immr->im_ioport.iop_paodr &= ~(CFG_PA_PUMA_PROG); /* active output */
+ immr->im_ioport.iop_padir |= CFG_PA_PUMA_PROG; /* output */
+#endif /* XXX */
+ udelay (100);
+
+#if PCU_E_WITH_SWAPPED_CS /* XXX */
+ immr->im_cpm.cp_pbdat |= CFG_PB_PUMA_PROG; /* release reset */
+#else
+ immr->im_ioport.iop_padat |= CFG_PA_PUMA_PROG; /* release reset */
+#endif /* XXX */
+
+ /* wait until INIT indicates completion of reset */
+ for (i=0; i<PUMA_INIT_TIMEOUT; ++i) {
+ udelay (1000);
+ if (immr->im_ioport.iop_pcdat & CFG_PC_PUMA_INIT)
+ break;
+ }
+ if (i == PUMA_INIT_TIMEOUT) {
+ printf ("*** PUMA init timeout ***\n");
+ return;
+ }
+
+ puma_set_mode (PUMA_LOAD_MODE);
+
+ while (len--)
+ *fpga_addr = *data++;
+
+ puma_set_mode (PUMA_READ_MODE);
+
+ puma_status ();
+}
+
+/* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . */
+
+static void puma_status (void)
+{
+ /* Check state */
+ printf ("PUMA initialization is %scomplete\n",
+ puma_init_done() ? "" : "NOT ");
+}
+
+/* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . */
+
+static int puma_init_done (void)
+{
+ volatile immap_t *immr = (immap_t *)CFG_IMMR;
+
+ /* make sure pin is GPIO input */
+ immr->im_ioport.iop_pcpar &= ~(CFG_PC_PUMA_DONE);
+ immr->im_ioport.iop_pcso &= ~(CFG_PC_PUMA_DONE);
+ immr->im_ioport.iop_pcdir &= ~(CFG_PC_PUMA_DONE);
+
+ return (immr->im_ioport.iop_pcdat & CFG_PC_PUMA_DONE) ? 1 : 0;
+}
+
+/* ------------------------------------------------------------------------- */
+
+int misc_init_r (void)
+{
+ ulong addr = 0;
+ ulong len = 0;
+ char *s;
+
+ printf ("PUMA: ");
+ if (puma_init_done()) {
+ printf ("initialized\n");
+ return 0;
+ }
+
+ if ((s = getenv("puma_addr")) != NULL)
+ addr = simple_strtoul(s, NULL, 16);
+
+ if ((s = getenv("puma_len")) != NULL)
+ len = simple_strtoul(s, NULL, 16);
+
+ if ((!addr) || (!len)) {
+ printf ("net list undefined\n");
+ return 0;
+ }
+
+ printf ("loading... ");
+
+ puma_load (addr, len);
+ return (0);
+}
+
+/* ------------------------------------------------------------------------- */
--- /dev/null
+/*
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ * Ulrich Lutz, Speech Design GmbH, ulutz@datalab.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <mpc8xx.h>
+#include <commproc.h>
+
+/* ------------------------------------------------------------------------- */
+
+static long int dram_size (long int, long int *, long int);
+
+/* ------------------------------------------------------------------------- */
+
+#define _NOT_USED_ 0xFFFFFFFF
+
+const uint sharc_table[] =
+{
+ /*
+ * Single Read. (Offset 0 in UPM RAM)
+ */
+ 0x0FF3FC04, 0x0FF3EC00, 0x7FFFEC04, 0xFFFFEC04,
+ 0xFFFFEC05, /* last */
+ _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ /*
+ * Burst Read. (Offset 8 in UPM RAM)
+ */
+ /* last */
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ /*
+ * Single Write. (Offset 18 in UPM RAM)
+ */
+ 0x0FAFFC04, 0x0FAFEC00, 0x7FFFEC04, 0xFFFFEC04,
+ 0xFFFFEC05, /* last */
+ _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ /*
+ * Burst Write. (Offset 20 in UPM RAM)
+ */
+ /* last */
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ /*
+ * Refresh (Offset 30 in UPM RAM)
+ */
+ /* last */
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ /*
+ * Exception. (Offset 3c in UPM RAM)
+ */
+ 0x7FFFFC07, /* last */
+ _NOT_USED_, _NOT_USED_, _NOT_USED_,
+};
+
+
+const uint sdram_table[] =
+{
+ /*
+ * Single Read. (Offset 0 in UPM RAM)
+ */
+ 0x1F07FC04, 0xEEAEFC04, 0x11ADFC04, 0xEFBBBC00,
+ 0x1FF77C47, /* last */
+ /*
+ * SDRAM Initialization (offset 5 in UPM RAM)
+ *
+ * This is no UPM entry point. The following definition uses
+ * the remaining space to establish an initialization
+ * sequence, which is executed by a RUN command.
+ *
+ */
+ 0x1FF77C35, 0xEFEABC34, 0x1FB57C35, /* last */
+ /*
+ * Burst Read. (Offset 8 in UPM RAM)
+ */
+ 0x1F07FC04, 0xEEAEFC04, 0x10ADFC04, 0xF0AFFC00,
+ 0xF0AFFC00, 0xF1AFFC00, 0xEFBBBC00, 0x1FF77C47, /* last */
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ /*
+ * Single Write. (Offset 18 in UPM RAM)
+ */
+ 0x1F27FC04, 0xEEAEBC00, 0x01B93C04, 0x1FF77C47, /* last */
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ /*
+ * Burst Write. (Offset 20 in UPM RAM)
+ */
+ 0x1F07FC04, 0xEEAEBC00, 0x10AD7C00, 0xF0AFFC00,
+ 0xF0AFFC00, 0xE1BBBC04, 0x1FF77C47, /* last */
+ _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ /*
+ * Refresh (Offset 30 in UPM RAM)
+ */
+ 0x1FF5FC84, 0xFFFFFC04, 0xFFFFFC04, 0xFFFFFC04,
+ 0xFFFFFC84, 0xFFFFFC07, /* last */
+ _NOT_USED_, _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ /*
+ * Exception. (Offset 3c in UPM RAM)
+ */
+ 0x7FFFFC07, /* last */
+ _NOT_USED_, _NOT_USED_, _NOT_USED_,
+};
+
+/* ------------------------------------------------------------------------- */
+
+
+/*
+ * Check Board Identity:
+ *
+ */
+
+int checkboard (void)
+{
+ puts ("Board: SPD823TS\n");
+ return (0);
+}
+
+/* ------------------------------------------------------------------------- */
+
+long int
+initdram (int board_type)
+{
+ volatile immap_t *immap = (immap_t *)CFG_IMMR;
+ volatile memctl8xx_t *memctl = &immap->im_memctl;
+ long int size_b0;
+
+#if 0
+ /*
+ * Map controller bank 2 to the SRAM bank at preliminary address.
+ */
+ memctl->memc_or2 = CFG_OR2;
+ memctl->memc_br2 = CFG_BR2;
+#endif
+
+ /*
+ * Map controller bank 4 to the PER8 bank.
+ */
+ memctl->memc_or4 = CFG_OR4;
+ memctl->memc_br4 = CFG_BR4;
+
+#if 0
+ /* Configure SHARC at UMA */
+ upmconfig(UPMA, (uint *)sharc_table, sizeof(sharc_table)/sizeof(uint));
+ /* Map controller bank 5 to the SHARC */
+ memctl->memc_or5 = CFG_OR5;
+ memctl->memc_br5 = CFG_BR5;
+#endif
+
+ memctl->memc_mamr = 0x00001000;
+
+ /* Configure SDRAM at UMB */
+ upmconfig(UPMB, (uint *)sdram_table, sizeof(sdram_table)/sizeof(uint));
+
+ memctl->memc_mptpr = CFG_MPTPR_1BK_8K;
+
+ memctl->memc_mar = 0x00000088;
+
+ /*
+ * Map controller bank 3 to the SDRAM bank at preliminary address.
+ */
+ memctl->memc_or3 = CFG_OR3_PRELIM;
+ memctl->memc_br3 = CFG_BR3_PRELIM;
+
+ memctl->memc_mbmr = CFG_MBMR_8COL; /* refresh not enabled yet */
+
+ udelay(200);
+ memctl->memc_mcr = 0x80806105;
+ udelay(1);
+ memctl->memc_mcr = 0x80806130;
+ udelay(1);
+ memctl->memc_mcr = 0x80806130;
+ udelay(1);
+ memctl->memc_mcr = 0x80806106;
+
+ memctl->memc_mbmr |= MAMR_PTBE; /* refresh enabled */
+
+ /*
+ * Check Bank 0 Memory Size for re-configuration
+ */
+ size_b0 = dram_size (CFG_MBMR_8COL, (ulong *)SDRAM_BASE3_PRELIM, SDRAM_MAX_SIZE);
+
+ memctl->memc_mbmr = CFG_MBMR_8COL | MAMR_PTBE;
+
+ return (size_b0);
+}
+
+/* ------------------------------------------------------------------------- */
+
+/*
+ * Check memory range for valid RAM. A simple memory test determines
+ * the actually available RAM size between addresses `base' and
+ * `base + maxsize'. Some (not all) hardware errors are detected:
+ * - short between address lines
+ * - short between data lines
+ */
+
+static long int dram_size (long int mamr_value, long int *base, long int maxsize)
+{
+ volatile immap_t *immap = (immap_t *)CFG_IMMR;
+ volatile memctl8xx_t *memctl = &immap->im_memctl;
+ volatile long int *addr;
+ ulong cnt, val;
+ ulong save[32]; /* to make test non-destructive */
+ unsigned char i = 0;
+
+ memctl->memc_mbmr = mamr_value;
+
+ for (cnt = maxsize/sizeof(long); cnt > 0; cnt >>= 1) {
+ addr = base + cnt; /* pointer arith! */
+
+ save[i++] = *addr;
+ *addr = ~cnt;
+ }
+
+ /* write 0 to base address */
+ addr = base;
+ save[i] = *addr;
+ *addr = 0;
+
+ /* check at base address */
+ if ((val = *addr) != 0) {
+ *addr = save[i];
+ return (0);
+ }
+
+ for (cnt = 1; cnt <= maxsize/sizeof(long); cnt <<= 1) {
+ addr = base + cnt; /* pointer arith! */
+
+ val = *addr;
+ *addr = save[--i];
+
+ if (val != (~cnt)) {
+ return (cnt * sizeof(long));
+ }
+ }
+ return (maxsize);
+}
+
+/* ------------------------------------------------------------------------- */
+
+void reset_phy(void)
+{
+ immap_t *immr = (immap_t *)CFG_IMMR;
+ ushort sreg;
+
+ /* Configure extra port pins for NS DP83843 PHY */
+ immr->im_ioport.iop_papar &= ~(PA_ENET_MDC | PA_ENET_MDIO);
+
+ sreg = immr->im_ioport.iop_padir;
+ sreg |= PA_ENET_MDC; /* Mgmt. Data Clock is Output */
+ sreg &= ~(PA_ENET_MDIO); /* Mgmt. Data I/O is bidirect. => Input */
+ immr->im_ioport.iop_padir = sreg;
+
+ immr->im_ioport.iop_padat &= ~(PA_ENET_MDC); /* set MDC = 0 */
+
+ /*
+ * RESET in implemented by a positive pulse of at least 1 us
+ * at the reset pin.
+ *
+ * Configure RESET pins for NS DP83843 PHY, and RESET chip.
+ *
+ * Note: The RESET pin is high active, but there is an
+ * inverter on the SPD823TS board...
+ */
+ immr->im_ioport.iop_pcpar &= ~(PC_ENET_RESET);
+ immr->im_ioport.iop_pcdir |= PC_ENET_RESET;
+ /* assert RESET signal of PHY */
+ immr->im_ioport.iop_pcdat &= ~(PC_ENET_RESET);
+ udelay (10);
+ /* de-assert RESET signal of PHY */
+ immr->im_ioport.iop_pcdat |= PC_ENET_RESET;
+ udelay (10);
+}
+
+/* ------------------------------------------------------------------------- */
+
+void ide_set_reset(int on)
+{
+ volatile immap_t *immr = (immap_t *)CFG_IMMR;
+
+ /*
+ * Configure PC for IDE Reset Pin
+ */
+ if (on) { /* assert RESET */
+ immr->im_ioport.iop_pcdat &= ~(CFG_PC_IDE_RESET);
+ } else { /* release RESET */
+ immr->im_ioport.iop_pcdat |= CFG_PC_IDE_RESET;
+ }
+
+ /* program port pin as GPIO output */
+ immr->im_ioport.iop_pcpar &= ~(CFG_PC_IDE_RESET);
+ immr->im_ioport.iop_pcso &= ~(CFG_PC_IDE_RESET);
+ immr->im_ioport.iop_pcdir |= CFG_PC_IDE_RESET;
+}
+
+/* ------------------------------------------------------------------------- */
--- /dev/null
+/*
+ * (C) Copyright 2001
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <ioports.h>
+#include <mpc8260.h>
+
+/*
+ * I/O Port configuration table
+ *
+ * if conf is 1, then that port pin will be configured at boot time
+ * according to the five values podr/pdir/ppar/psor/pdat for that entry
+ */
+
+const iop_conf_t iop_conf_tab[4][32] = {
+
+ /* Port A configuration */
+ { /* conf ppar psor pdir podr pdat */
+ /* PA31 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 *ATMTXEN */
+ /* PA30 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMTCA */
+ /* PA29 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMTSOC */
+ /* PA28 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 *ATMRXEN */
+ /* PA27 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMRSOC */
+ /* PA26 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMRCA */
+ /* PA25 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMTXD[0] */
+ /* PA24 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMTXD[1] */
+ /* PA23 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMTXD[2] */
+ /* PA22 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMTXD[3] */
+ /* PA21 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMTXD[4] */
+ /* PA20 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMTXD[5] */
+ /* PA19 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMTXD[6] */
+ /* PA18 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMTXD[7] */
+ /* PA17 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMRXD[7] */
+ /* PA16 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMRXD[6] */
+ /* PA15 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMRXD[5] */
+ /* PA14 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMRXD[4] */
+ /* PA13 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMRXD[3] */
+ /* PA12 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMRXD[2] */
+ /* PA11 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMRXD[1] */
+ /* PA10 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMRXD[0] */
+ /* PA9 */ { 1, 1, 0, 1, 0, 0 }, /* SMC2 TXD */
+ /* PA8 */ { 1, 1, 0, 0, 0, 0 }, /* SMC2 RXD */
+ /* PA7 */ { 0, 0, 0, 1, 0, 0 }, /* PA7 */
+ /* PA6 */ { 0, 0, 0, 1, 0, 0 }, /* PA6 */
+ /* PA5 */ { 0, 0, 0, 1, 0, 0 }, /* PA5 */
+ /* PA4 */ { 0, 0, 0, 1, 0, 0 }, /* PA4 */
+ /* PA3 */ { 0, 0, 0, 1, 0, 0 }, /* PA3 */
+ /* PA2 */ { 0, 0, 0, 1, 0, 0 }, /* PA2 */
+ /* PA1 */ { 0, 0, 0, 1, 0, 0 }, /* PA1 */
+ /* PA0 */ { 0, 0, 0, 1, 0, 0 } /* PA0 */
+ },
+
+ /* Port B configuration */
+ { /* conf ppar psor pdir podr pdat */
+ /* PB31 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TX_ER */
+ /* PB30 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_DV */
+ /* PB29 */ { 1, 1, 1, 1, 0, 0 }, /* FCC2 MII TX_EN */
+ /* PB28 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_ER */
+ /* PB27 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII COL */
+ /* PB26 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII CRS */
+ /* PB25 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[3] */
+ /* PB24 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[2] */
+ /* PB23 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[1] */
+ /* PB22 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[0] */
+ /* PB21 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[0] */
+ /* PB20 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[1] */
+ /* PB19 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[2] */
+ /* PB18 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[3] */
+ /* PB17 */ { 0, 0, 0, 0, 0, 0 }, /* PB17 */
+ /* PB16 */ { 0, 0, 0, 0, 0, 0 }, /* PB16 */
+ /* PB15 */ { 0, 0, 0, 0, 0, 0 }, /* PB15 */
+ /* PB14 */ { 0, 0, 0, 0, 0, 0 }, /* PB14 */
+ /* PB13 */ { 0, 0, 0, 0, 0, 0 }, /* PB13 */
+ /* PB12 */ { 0, 0, 0, 0, 0, 0 }, /* PB12 */
+ /* PB11 */ { 0, 0, 0, 0, 0, 0 }, /* PB11 */
+ /* PB10 */ { 0, 0, 0, 0, 0, 0 }, /* PB10 */
+ /* PB9 */ { 0, 0, 0, 0, 0, 0 }, /* PB9 */
+ /* PB8 */ { 0, 0, 0, 0, 0, 0 }, /* PB8 */
+ /* PB7 */ { 0, 0, 0, 0, 0, 0 }, /* PB7 */
+ /* PB6 */ { 0, 0, 0, 0, 0, 0 }, /* PB6 */
+ /* PB5 */ { 0, 0, 0, 0, 0, 0 }, /* PB5 */
+ /* PB4 */ { 0, 0, 0, 0, 0, 0 }, /* PB4 */
+ /* PB3 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
+ /* PB2 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
+ /* PB1 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
+ /* PB0 */ { 0, 0, 0, 0, 0, 0 } /* pin doesn't exist */
+ },
+
+ /* Port C */
+ { /* conf ppar psor pdir podr pdat */
+ /* PC31 */ { 0, 0, 0, 1, 0, 0 }, /* PC31 */
+ /* PC30 */ { 0, 0, 0, 1, 0, 0 }, /* PC30 */
+ /* PC29 */ { 1, 1, 1, 0, 0, 0 }, /* SCC1 EN *CLSN */
+ /* PC28 */ { 0, 0, 0, 1, 0, 0 }, /* PC28 */
+ /* PC27 */ { 0, 0, 0, 1, 0, 0 }, /* PC27 */
+ /* PC26 */ { 0, 0, 0, 1, 0, 0 }, /* PC26 */
+ /* PC25 */ { 0, 0, 0, 1, 0, 0 }, /* PC25 */
+ /* PC24 */ { 0, 0, 0, 1, 0, 0 }, /* PC24 */
+ /* PC23 */ { 0, 1, 0, 1, 0, 0 }, /* ATMTFCLK */
+ /* PC22 */ { 0, 1, 0, 0, 0, 0 }, /* ATMRFCLK */
+ /* PC21 */ { 1, 1, 0, 0, 0, 0 }, /* SCC1 EN RXCLK */
+ /* PC20 */ { 1, 1, 0, 0, 0, 0 }, /* SCC1 EN TXCLK */
+ /* PC19 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_CLK */
+ /* PC18 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII TX_CLK */
+ /* PC17 */ { 0, 0, 0, 1, 0, 0 }, /* PC17 */
+ /* PC16 */ { 0, 0, 0, 1, 0, 0 }, /* PC16 */
+ /* PC15 */ { 0, 0, 0, 1, 0, 0 }, /* PC15 */
+ /* PC14 */ { 1, 1, 0, 0, 0, 0 }, /* SCC1 EN *CD */
+ /* PC13 */ { 0, 0, 0, 1, 0, 0 }, /* PC13 */
+ /* PC12 */ { 0, 0, 0, 1, 0, 0 }, /* PC12 */
+ /* PC11 */ { 0, 0, 0, 1, 0, 0 }, /* PC11 */
+ /* PC10 */ { 0, 0, 0, 1, 0, 0 }, /* FCC2 MDC */
+ /* PC9 */ { 0, 0, 0, 1, 0, 0 }, /* FCC2 MDIO */
+ /* PC8 */ { 0, 0, 0, 1, 0, 0 }, /* PC8 */
+ /* PC7 */ { 0, 0, 0, 1, 0, 0 }, /* PC7 */
+ /* PC6 */ { 0, 0, 0, 1, 0, 0 }, /* PC6 */
+ /* PC5 */ { 0, 0, 0, 1, 0, 0 }, /* PC5 */
+ /* PC4 */ { 0, 0, 0, 1, 0, 0 }, /* PC4 */
+ /* PC3 */ { 0, 0, 0, 1, 0, 0 }, /* PC3 */
+ /* PC2 */ { 0, 0, 0, 1, 0, 1 }, /* ENET FDE */
+ /* PC1 */ { 0, 0, 0, 1, 0, 0 }, /* ENET DSQE */
+ /* PC0 */ { 0, 0, 0, 1, 0, 0 }, /* ENET LBK */
+ },
+
+ /* Port D */
+ { /* conf ppar psor pdir podr pdat */
+ /* PD31 */ { 1, 1, 0, 0, 0, 0 }, /* SCC1 EN RxD */
+ /* PD30 */ { 1, 1, 1, 1, 0, 0 }, /* SCC1 EN TxD */
+ /* PD29 */ { 1, 1, 0, 1, 0, 0 }, /* SCC1 EN TENA */
+ /* PD28 */ { 0, 0, 0, 1, 0, 0 }, /* PD28 */
+ /* PD27 */ { 0, 0, 0, 1, 0, 0 }, /* PD27 */
+ /* PD26 */ { 0, 0, 0, 1, 0, 0 }, /* PD26 */
+ /* PD25 */ { 0, 0, 0, 1, 0, 0 }, /* PD25 */
+ /* PD24 */ { 0, 0, 0, 1, 0, 0 }, /* PD24 */
+ /* PD23 */ { 0, 0, 0, 1, 0, 0 }, /* PD23 */
+ /* PD22 */ { 0, 0, 0, 1, 0, 0 }, /* PD22 */
+ /* PD21 */ { 0, 0, 0, 1, 0, 0 }, /* PD21 */
+ /* PD20 */ { 0, 0, 0, 1, 0, 0 }, /* PD20 */
+ /* PD19 */ { 0, 0, 0, 1, 0, 0 }, /* PD19 */
+ /* PD18 */ { 0, 0, 0, 1, 0, 0 }, /* PD19 */
+ /* PD17 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXPRTY */
+ /* PD16 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXPRTY */
+#if defined(CONFIG_SOFT_I2C)
+ /* PD15 */ { 1, 0, 0, 1, 1, 1 }, /* I2C SDA */
+ /* PD14 */ { 1, 0, 0, 1, 1, 1 }, /* I2C SCL */
+#else
+#if defined(CONFIG_HARD_I2C)
+ /* PD15 */ { 1, 1, 1, 0, 1, 0 }, /* I2C SDA */
+ /* PD14 */ { 1, 1, 1, 0, 1, 0 }, /* I2C SCL */
+#else /* normal I/O port pins */
+ /* PD15 */ { 0, 1, 1, 0, 1, 0 }, /* I2C SDA */
+ /* PD14 */ { 0, 1, 1, 0, 1, 0 }, /* I2C SCL */
+#endif
+#endif
+ /* PD13 */ { 0, 0, 0, 0, 0, 0 }, /* PD13 */
+ /* PD12 */ { 0, 0, 0, 0, 0, 0 }, /* PD12 */
+ /* PD11 */ { 0, 0, 0, 0, 0, 0 }, /* PD11 */
+ /* PD10 */ { 0, 0, 0, 0, 0, 0 }, /* PD10 */
+ /* PD9 */ { 1, 1, 0, 1, 0, 0 }, /* SMC1 TXD */
+ /* PD8 */ { 1, 1, 0, 0, 0, 0 }, /* SMC1 RXD */
+ /* PD7 */ { 0, 0, 0, 1, 0, 1 }, /* PD7 */
+ /* PD6 */ { 0, 0, 0, 1, 0, 1 }, /* PD6 */
+ /* PD5 */ { 0, 0, 0, 1, 0, 1 }, /* PD5 */
+ /* PD4 */ { 0, 0, 0, 1, 0, 1 }, /* PD4 */
+ /* PD3 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
+ /* PD2 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
+ /* PD1 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
+ /* PD0 */ { 0, 0, 0, 0, 0, 0 } /* pin doesn't exist */
+ }
+};
+
+/* ------------------------------------------------------------------------- */
+
+/* Check Board Identity:
+ */
+int checkboard (void)
+{
+ unsigned char str[64];
+ int i = getenv_r ("serial#", str, sizeof (str));
+
+ puts ("Board: ");
+
+ if (!i || strncmp (str, "TQM8260", 7)) {
+ puts ("### No HW ID - assuming TQM8260\n");
+ return (1);
+ }
+
+ puts (str);
+ putc ('\n');
+
+ return 0;
+}
+
+/* ------------------------------------------------------------------------- */
+
+/* Try SDRAM initialization with P/LSDMR=sdmr and ORx=orx
+ *
+ * This routine performs standard 8260 initialization sequence
+ * and calculates the available memory size. It may be called
+ * several times to try different SDRAM configurations on both
+ * 60x and local buses.
+ */
+static long int try_init (volatile memctl8260_t * memctl, ulong sdmr,
+ ulong orx, volatile uchar * base)
+{
+ volatile uchar c = 0xff;
+ ulong cnt, val;
+ volatile ulong *addr;
+ volatile uint *sdmr_ptr;
+ volatile uint *orx_ptr;
+ int i;
+ ulong save[32]; /* to make test non-destructive */
+ ulong maxsize;
+
+ /* We must be able to test a location outsize the maximum legal size
+ * to find out THAT we are outside; but this address still has to be
+ * mapped by the controller. That means, that the initial mapping has
+ * to be (at least) twice as large as the maximum expected size.
+ */
+ maxsize = (1 + (~orx | 0x7fff)) / 2;
+
+ /* Since CFG_SDRAM_BASE is always 0 (??), we assume that
+ * we are configuring CS1 if base != 0
+ */
+ sdmr_ptr = base ? &memctl->memc_lsdmr : &memctl->memc_psdmr;
+ orx_ptr = base ? &memctl->memc_or2 : &memctl->memc_or1;
+
+ *orx_ptr = orx;
+
+ /*
+ * Quote from 8260 UM (10.4.2 SDRAM Power-On Initialization, 10-35):
+ *
+ * "At system reset, initialization software must set up the
+ * programmable parameters in the memory controller banks registers
+ * (ORx, BRx, P/LSDMR). After all memory parameters are configured,
+ * system software should execute the following initialization sequence
+ * for each SDRAM device.
+ *
+ * 1. Issue a PRECHARGE-ALL-BANKS command
+ * 2. Issue eight CBR REFRESH commands
+ * 3. Issue a MODE-SET command to initialize the mode register
+ *
+ * The initial commands are executed by setting P/LSDMR[OP] and
+ * accessing the SDRAM with a single-byte transaction."
+ *
+ * The appropriate BRx/ORx registers have already been set when we
+ * get here. The SDRAM can be accessed at the address CFG_SDRAM_BASE.
+ */
+
+ *sdmr_ptr = sdmr | PSDMR_OP_PREA;
+ *base = c;
+
+ *sdmr_ptr = sdmr | PSDMR_OP_CBRR;
+ for (i = 0; i < 8; i++)
+ *base = c;
+
+ *sdmr_ptr = sdmr | PSDMR_OP_MRW;
+ *(base + CFG_MRS_OFFS) = c; /* setting MR on address lines */
+
+ *sdmr_ptr = sdmr | PSDMR_OP_NORM | PSDMR_RFEN;
+ *base = c;
+
+ /*
+ * Check memory range for valid RAM. A simple memory test determines
+ * the actually available RAM size between addresses `base' and
+ * `base + maxsize'. Some (not all) hardware errors are detected:
+ * - short between address lines
+ * - short between data lines
+ */
+ i = 0;
+ for (cnt = maxsize / sizeof (long); cnt > 0; cnt >>= 1) {
+ addr = (volatile ulong *) base + cnt; /* pointer arith! */
+ save[i++] = *addr;
+ *addr = ~cnt;
+ }
+
+ addr = (volatile ulong *) base;
+ save[i] = *addr;
+ *addr = 0;
+
+ if ((val = *addr) != 0) {
+ *addr = save[i];
+ return (0);
+ }
+
+ for (cnt = 1; cnt <= maxsize / sizeof (long); cnt <<= 1) {
+ addr = (volatile ulong *) base + cnt; /* pointer arith! */
+ val = *addr;
+ *addr = save[--i];
+ if (val != ~cnt) {
+ /* Write the actual size to ORx
+ */
+ *orx_ptr = orx | ~(cnt * sizeof (long) - 1);
+ return (cnt * sizeof (long));
+ }
+ }
+ return (maxsize);
+}
+
+long int initdram (int board_type)
+{
+ volatile immap_t *immap = (immap_t *) CFG_IMMR;
+ volatile memctl8260_t *memctl = &immap->im_memctl;
+
+#ifndef CFG_RAMBOOT
+ long size8, size9;
+#endif
+ long psize, lsize;
+
+ psize = 16 * 1024 * 1024;
+ lsize = 0;
+
+ memctl->memc_psrt = CFG_PSRT;
+ memctl->memc_mptpr = CFG_MPTPR;
+
+#if 0 /* Just for debugging */
+#define prt_br_or(brX,orX) do { \
+ ulong start = memctl->memc_ ## brX & 0xFFFF8000; \
+ ulong sizem = ~memctl->memc_ ## orX | 0x00007FFF; \
+ printf ("\n" \
+ #brX " 0x%08x " #orX " 0x%08x " \
+ "==> 0x%08lx ... 0x%08lx = %ld MB\n", \
+ memctl->memc_ ## brX, memctl->memc_ ## orX, \
+ start, start+sizem, (sizem+1)>>20); \
+ } while (0)
+ prt_br_or (br0, or0);
+ prt_br_or (br1, or1);
+ prt_br_or (br2, or2);
+ prt_br_or (br3, or3);
+#endif
+
+#ifndef CFG_RAMBOOT
+ /* 60x SDRAM setup:
+ */
+ size8 = try_init (memctl, CFG_PSDMR_8COL, CFG_OR1_8COL,
+ (uchar *) CFG_SDRAM_BASE);
+ size9 = try_init (memctl, CFG_PSDMR_9COL, CFG_OR1_9COL,
+ (uchar *) CFG_SDRAM_BASE);
+
+ if (size8 < size9) {
+ psize = size9;
+ printf ("(60x:9COL - %ld MB, ", psize >> 20);
+ } else {
+ psize = try_init (memctl, CFG_PSDMR_8COL, CFG_OR1_8COL,
+ (uchar *) CFG_SDRAM_BASE);
+ printf ("(60x:8COL - %ld MB, ", psize >> 20);
+ }
+
+ /* Local SDRAM setup:
+ */
+#ifdef CFG_INIT_LOCAL_SDRAM
+ memctl->memc_lsrt = CFG_LSRT;
+ size8 = try_init (memctl, CFG_LSDMR_8COL, CFG_OR2_8COL,
+ (uchar *) SDRAM_BASE2_PRELIM);
+ size9 = try_init (memctl, CFG_LSDMR_9COL, CFG_OR2_9COL,
+ (uchar *) SDRAM_BASE2_PRELIM);
+
+ if (size8 < size9) {
+ lsize = size9;
+ printf ("Local:9COL - %ld MB) using ", lsize >> 20);
+ } else {
+ lsize = try_init (memctl, CFG_LSDMR_8COL, CFG_OR2_8COL,
+ (uchar *) SDRAM_BASE2_PRELIM);
+ printf ("Local:8COL - %ld MB) using ", lsize >> 20);
+ }
+
+#if 0
+ /* Set up BR2 so that the local SDRAM goes
+ * right after the 60x SDRAM
+ */
+ memctl->memc_br2 = (CFG_BR2_PRELIM & ~BRx_BA_MSK) |
+ (CFG_SDRAM_BASE + psize);
+#endif
+#endif /* CFG_INIT_LOCAL_SDRAM */
+#endif /* CFG_RAMBOOT */
+
+ icache_enable ();
+
+ return (psize);
+}
+
+/* ------------------------------------------------------------------------- */
--- /dev/null
+/*
+ * (C) Copyright 2000, 2001, 2002
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <mpc8xx.h>
+
+/* ------------------------------------------------------------------------- */
+
+static long int dram_size (long int, long int *, long int);
+
+/* ------------------------------------------------------------------------- */
+
+#define _NOT_USED_ 0xFFFFFFFF
+
+const uint sdram_table[] =
+{
+ /*
+ * Single Read. (Offset 0 in UPMA RAM)
+ */
+ 0x1F0DFC04, 0xEEAFBC04, 0x11AF7C04, 0xEFBAFC00,
+ 0x1FF5FC47, /* last */
+ /*
+ * SDRAM Initialization (offset 5 in UPMA RAM)
+ *
+ * This is no UPM entry point. The following definition uses
+ * the remaining space to establish an initialization
+ * sequence, which is executed by a RUN command.
+ *
+ */
+ 0x1FF5FC34, 0xEFEABC34, 0x1FB57C35, /* last */
+ /*
+ * Burst Read. (Offset 8 in UPMA RAM)
+ */
+ 0x1F0DFC04, 0xEEAFBC04, 0x10AF7C04, 0xF0AFFC00,
+ 0xF0AFFC00, 0xF1AFFC00, 0xEFBAFC00, 0x1FF5FC47, /* last */
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ /*
+ * Single Write. (Offset 18 in UPMA RAM)
+ */
+ 0x1F0DFC04, 0xEEABBC00, 0x01B27C04, 0x1FF5FC47, /* last */
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ /*
+ * Burst Write. (Offset 20 in UPMA RAM)
+ */
+ 0x1F0DFC04, 0xEEABBC00, 0x10A77C00, 0xF0AFFC00,
+ 0xF0AFFC00, 0xE1BAFC04, 0x1FF5FC47, /* last */
+ _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ /*
+ * Refresh (Offset 30 in UPMA RAM)
+ */
+ 0x1FFD7C84, 0xFFFFFC04, 0xFFFFFC04, 0xFFFFFC04,
+ 0xFFFFFC84, 0xFFFFFC07, /* last */
+ _NOT_USED_, _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ /*
+ * Exception. (Offset 3c in UPMA RAM)
+ */
+ 0x7FFFFC07, /* last */
+ _NOT_USED_, _NOT_USED_, _NOT_USED_,
+};
+
+/* ------------------------------------------------------------------------- */
+
+
+/*
+ * Check Board Identity:
+ *
+ * Test TQ ID string (TQM8xx...)
+ * If present, check for "L" type (no second DRAM bank),
+ * otherwise "L" type is assumed as default.
+ *
+ * Set board_type to 'L' for "L" type, 0 else.
+ */
+
+int checkboard (void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ unsigned char *s = getenv ("serial#");
+
+ puts ("Board: ");
+
+ if (!s || strncmp (s, "TQM8", 4)) {
+ puts ("### No HW ID - assuming TQM8xxL\n");
+ return (0);
+ }
+
+ if ((*(s + 6) == 'L')) { /* a TQM8xxL type */
+ gd->board_type = 'L';
+ }
+
+ for (; *s; ++s) {
+ if (*s == ' ')
+ break;
+ putc (*s);
+ }
+ putc ('\n');
+
+ return (0);
+}
+
+/* ------------------------------------------------------------------------- */
+
+long int initdram (int board_type)
+{
+ volatile immap_t *immap = (immap_t *) CFG_IMMR;
+ volatile memctl8xx_t *memctl = &immap->im_memctl;
+ long int size8, size9;
+ long int size_b0 = 0;
+ long int size_b1 = 0;
+
+ upmconfig (UPMA, (uint *) sdram_table,
+ sizeof (sdram_table) / sizeof (uint));
+
+ /*
+ * Preliminary prescaler for refresh (depends on number of
+ * banks): This value is selected for four cycles every 62.4 us
+ * with two SDRAM banks or four cycles every 31.2 us with one
+ * bank. It will be adjusted after memory sizing.
+ */
+ memctl->memc_mptpr = CFG_MPTPR_2BK_8K;
+
+ /*
+ * The following value is used as an address (i.e. opcode) for
+ * the LOAD MODE REGISTER COMMAND during SDRAM initialisation. If
+ * the port size is 32bit the SDRAM does NOT "see" the lower two
+ * address lines, i.e. mar=0x00000088 -> opcode=0x00000022 for
+ * MICRON SDRAMs:
+ * -> 0 00 010 0 010
+ * | | | | +- Burst Length = 4
+ * | | | +----- Burst Type = Sequential
+ * | | +------- CAS Latency = 2
+ * | +----------- Operating Mode = Standard
+ * +-------------- Write Burst Mode = Programmed Burst Length
+ */
+ memctl->memc_mar = 0x00000088;
+
+ /*
+ * Map controller banks 2 and 3 to the SDRAM banks 2 and 3 at
+ * preliminary addresses - these have to be modified after the
+ * SDRAM size has been determined.
+ */
+ memctl->memc_or2 = CFG_OR2_PRELIM;
+ memctl->memc_br2 = CFG_BR2_PRELIM;
+
+#ifndef CONFIG_CAN_DRIVER
+ if (board_type != 'L') { /* "L" type boards have only one bank SDRAM */
+ memctl->memc_or3 = CFG_OR3_PRELIM;
+ memctl->memc_br3 = CFG_BR3_PRELIM;
+ }
+#endif /* CONFIG_CAN_DRIVER */
+
+ memctl->memc_mamr = CFG_MAMR_8COL & (~(MAMR_PTAE)); /* no refresh yet */
+
+ udelay (200);
+
+ /* perform SDRAM initializsation sequence */
+
+ memctl->memc_mcr = 0x80004105; /* SDRAM bank 0 */
+ udelay (1);
+ memctl->memc_mcr = 0x80004230; /* SDRAM bank 0 - execute twice */
+ udelay (1);
+
+#ifndef CONFIG_CAN_DRIVER
+ if (board_type != 'L') { /* "L" type boards have only one bank SDRAM */
+ memctl->memc_mcr = 0x80006105; /* SDRAM bank 1 */
+ udelay (1);
+ memctl->memc_mcr = 0x80006230; /* SDRAM bank 1 - execute twice */
+ udelay (1);
+ }
+#endif /* CONFIG_CAN_DRIVER */
+
+ memctl->memc_mamr |= MAMR_PTAE; /* enable refresh */
+
+ udelay (1000);
+
+ /*
+ * Check Bank 0 Memory Size for re-configuration
+ *
+ * try 8 column mode
+ */
+ size8 = dram_size (CFG_MAMR_8COL, (ulong *) SDRAM_BASE2_PRELIM,
+ SDRAM_MAX_SIZE);
+
+ udelay (1000);
+
+ /*
+ * try 9 column mode
+ */
+ size9 = dram_size (CFG_MAMR_9COL, (ulong *) SDRAM_BASE2_PRELIM,
+ SDRAM_MAX_SIZE);
+
+ if (size8 < size9) { /* leave configuration at 9 columns */
+ size_b0 = size9;
+/* debug ("SDRAM Bank 0 in 9 column mode: %ld MB\n", size >> 20); */
+ } else { /* back to 8 columns */
+ size_b0 = size8;
+ memctl->memc_mamr = CFG_MAMR_8COL;
+ udelay (500);
+/* debug ("SDRAM Bank 0 in 8 column mode: %ld MB\n", size >> 20); */
+ }
+
+#ifndef CONFIG_CAN_DRIVER
+ if (board_type != 'L') { /* "L" type boards have only one bank SDRAM */
+ /*
+ * Check Bank 1 Memory Size
+ * use current column settings
+ * [9 column SDRAM may also be used in 8 column mode,
+ * but then only half the real size will be used.]
+ */
+ size_b1 =
+ dram_size (memctl->memc_mamr, (ulong *) SDRAM_BASE3_PRELIM,
+ SDRAM_MAX_SIZE);
+/* debug ("SDRAM Bank 1: %ld MB\n", size8 >> 20); */
+ } else {
+ size_b1 = 0;
+ }
+#endif /* CONFIG_CAN_DRIVER */
+
+ udelay (1000);
+
+ /*
+ * Adjust refresh rate depending on SDRAM type, both banks
+ * For types > 128 MBit leave it at the current (fast) rate
+ */
+ if ((size_b0 < 0x02000000) && (size_b1 < 0x02000000)) {
+ /* reduce to 15.6 us (62.4 us / quad) */
+ memctl->memc_mptpr = CFG_MPTPR_2BK_4K;
+ udelay (1000);
+ }
+
+ /*
+ * Final mapping: map bigger bank first
+ */
+ if (size_b1 > size_b0) { /* SDRAM Bank 1 is bigger - map first */
+
+ memctl->memc_or3 = ((-size_b1) & 0xFFFF0000) | CFG_OR_TIMING_SDRAM;
+ memctl->memc_br3 =
+ (CFG_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMA | BR_V;
+
+ if (size_b0 > 0) {
+ /*
+ * Position Bank 0 immediately above Bank 1
+ */
+ memctl->memc_or2 =
+ ((-size_b0) & 0xFFFF0000) | CFG_OR_TIMING_SDRAM;
+ memctl->memc_br2 =
+ ((CFG_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMA | BR_V)
+ + size_b1;
+ } else {
+ unsigned long reg;
+
+ /*
+ * No bank 0
+ *
+ * invalidate bank
+ */
+ memctl->memc_br2 = 0;
+
+ /* adjust refresh rate depending on SDRAM type, one bank */
+ reg = memctl->memc_mptpr;
+ reg >>= 1; /* reduce to CFG_MPTPR_1BK_8K / _4K */
+ memctl->memc_mptpr = reg;
+ }
+
+ } else { /* SDRAM Bank 0 is bigger - map first */
+
+ memctl->memc_or2 = ((-size_b0) & 0xFFFF0000) | CFG_OR_TIMING_SDRAM;
+ memctl->memc_br2 =
+ (CFG_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMA | BR_V;
+
+ if (size_b1 > 0) {
+ /*
+ * Position Bank 1 immediately above Bank 0
+ */
+ memctl->memc_or3 =
+ ((-size_b1) & 0xFFFF0000) | CFG_OR_TIMING_SDRAM;
+ memctl->memc_br3 =
+ ((CFG_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMA | BR_V)
+ + size_b0;
+ } else {
+ unsigned long reg;
+
+#ifndef CONFIG_CAN_DRIVER
+ /*
+ * No bank 1
+ *
+ * invalidate bank
+ */
+ memctl->memc_br3 = 0;
+#endif /* CONFIG_CAN_DRIVER */
+
+ /* adjust refresh rate depending on SDRAM type, one bank */
+ reg = memctl->memc_mptpr;
+ reg >>= 1; /* reduce to CFG_MPTPR_1BK_8K / _4K */
+ memctl->memc_mptpr = reg;
+ }
+ }
+
+ udelay (10000);
+
+#ifdef CONFIG_CAN_DRIVER
+ /* Initialize OR3 / BR3 */
+ memctl->memc_or3 = CFG_OR3_CAN;
+ memctl->memc_br3 = CFG_BR3_CAN;
+
+ /* Initialize MBMR */
+ memctl->memc_mbmr = MAMR_GPL_B4DIS; /* GPL_B4 ouput line Disable */
+
+ /* Initialize UPMB for CAN: single read */
+ memctl->memc_mdr = 0xFFFFC004;
+ memctl->memc_mcr = 0x0100 | UPMB;
+
+ memctl->memc_mdr = 0x0FFFD004;
+ memctl->memc_mcr = 0x0101 | UPMB;
+
+ memctl->memc_mdr = 0x0FFFC000;
+ memctl->memc_mcr = 0x0102 | UPMB;
+
+ memctl->memc_mdr = 0x3FFFC004;
+ memctl->memc_mcr = 0x0103 | UPMB;
+
+ memctl->memc_mdr = 0xFFFFDC05;
+ memctl->memc_mcr = 0x0104 | UPMB;
+
+ /* Initialize UPMB for CAN: single write */
+ memctl->memc_mdr = 0xFFFCC004;
+ memctl->memc_mcr = 0x0118 | UPMB;
+
+ memctl->memc_mdr = 0xCFFCD004;
+ memctl->memc_mcr = 0x0119 | UPMB;
+
+ memctl->memc_mdr = 0x0FFCC000;
+ memctl->memc_mcr = 0x011A | UPMB;
+
+ memctl->memc_mdr = 0x7FFCC004;
+ memctl->memc_mcr = 0x011B | UPMB;
+
+ memctl->memc_mdr = 0xFFFDCC05;
+ memctl->memc_mcr = 0x011C | UPMB;
+#endif /* CONFIG_CAN_DRIVER */
+
+
+ return (size_b0 + size_b1);
+}
+
+/* ------------------------------------------------------------------------- */
+
+/*
+ * Check memory range for valid RAM. A simple memory test determines
+ * the actually available RAM size between addresses `base' and
+ * `base + maxsize'. Some (not all) hardware errors are detected:
+ * - short between address lines
+ * - short between data lines
+ */
+
+static long int dram_size (long int mamr_value, long int *base,
+ long int maxsize)
+{
+ volatile immap_t *immap = (immap_t *) CFG_IMMR;
+ volatile memctl8xx_t *memctl = &immap->im_memctl;
+ volatile long int *addr;
+ ulong cnt, val;
+ ulong save[32]; /* to make test non-destructive */
+ unsigned char i = 0;
+
+ memctl->memc_mamr = mamr_value;
+
+ for (cnt = maxsize / sizeof (long); cnt > 0; cnt >>= 1) {
+ addr = base + cnt; /* pointer arith! */
+
+ save[i++] = *addr;
+ *addr = ~cnt;
+ }
+
+ /* write 0 to base address */
+ addr = base;
+ save[i] = *addr;
+ *addr = 0;
+
+ /* check at base address */
+ if ((val = *addr) != 0) {
+ *addr = save[i];
+ return (0);
+ }
+
+ for (cnt = 1; cnt <= maxsize / sizeof (long); cnt <<= 1) {
+ addr = base + cnt; /* pointer arith! */
+
+ val = *addr;
+ *addr = save[--i];
+
+ if (val != (~cnt)) {
+ return (cnt * sizeof (long));
+ }
+ }
+ return (maxsize);
+}
+
+/* ------------------------------------------------------------------------- */
--- /dev/null
+/*
+ * (C) Copyright 2001
+ * Erik Theisen, Wave 7 Optics, etheisen@mindspring.com
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <command.h>
+
+#if (CONFIG_COMMANDS & CFG_CMD_BSP)
+
+#include "vpd.h"
+#include "cmd_bsp.h"
+
+/* ======================================================================
+ * Interpreter command to retrieve board specific Vital Product Data, "VPD"
+ * ======================================================================
+ */
+int do_vpd (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+{
+ VPD vpd; /* Board specific data struct */
+ uchar dev_addr = CFG_DEF_EEPROM_ADDR;
+
+ /* Validate usage */
+ if (argc > 2) {
+ printf ("Usage:\n%s\n", cmdtp->usage);
+ return 1;
+ }
+
+ /* Passed in EEPROM address */
+ if (argc == 2)
+ dev_addr = (uchar) simple_strtoul (argv[1], NULL, 16);
+
+ /* Read VPD and output it */
+ if (!vpd_get_data (dev_addr, &vpd)) {
+ vpd_print (&vpd);
+ return 0;
+ }
+
+ return 1;
+}
+
+#endif /* (CONFIG_COMMANDS & CFG_CMD_BSP) */
--- /dev/null
+/*
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+long int spd_sdram (void);
+
+#include <common.h>
+#include "walnut405.h"
+#include <asm/processor.h>
+
+
+
+int board_pre_init (void)
+{
+ /*-------------------------------------------------------------------------+
+ | Interrupt controller setup for the Walnut board.
+ | Note: IRQ 0-15 405GP internally generated; active high; level sensitive
+ | IRQ 16 405GP internally generated; active low; level sensitive
+ | IRQ 17-24 RESERVED
+ | IRQ 25 (EXT IRQ 0) FPGA; active high; level sensitive
+ | IRQ 26 (EXT IRQ 1) SMI; active high; level sensitive
+ | IRQ 27 (EXT IRQ 2) Not Used
+ | IRQ 28 (EXT IRQ 3) PCI SLOT 3; active low; level sensitive
+ | IRQ 29 (EXT IRQ 4) PCI SLOT 2; active low; level sensitive
+ | IRQ 30 (EXT IRQ 5) PCI SLOT 1; active low; level sensitive
+ | IRQ 31 (EXT IRQ 6) PCI SLOT 0; active low; level sensitive
+ | Note for Walnut board:
+ | An interrupt taken for the FPGA (IRQ 25) indicates that either
+ | the Mouse, Keyboard, IRDA, or External Expansion caused the
+ | interrupt. The FPGA must be read to determine which device
+ | caused the interrupt. The default setting of the FPGA clears
+ |
+ +-------------------------------------------------------------------------*/
+
+ mtdcr (uicsr, 0xFFFFFFFF); /* clear all ints */
+ mtdcr (uicer, 0x00000000); /* disable all ints */
+ mtdcr (uiccr, 0x00000020); /* set all but FPGA SMI to be non-critical */
+ mtdcr (uicpr, 0xFFFFFFE0); /* set int polarities */
+ mtdcr (uictr, 0x10000000); /* set int trigger levels */
+ mtdcr (uicvcr, 0x00000001); /* set vect base=0,INT0 highest priority */
+ mtdcr (uicsr, 0xFFFFFFFF); /* clear all ints */
+
+#define mtebc(reg, data) mtdcr(ebccfga,reg);mtdcr(ebccfgd,data)
+ /* BAS=0xF00,BS=0x0(1MB),BU=0x3(R/W),BW=0x0( 8 bits) */
+ mtebc (pb1ap, 0x02815480);
+ mtebc (pb1cr, 0xF0018000);
+
+ /* BAS=0xF01,BS=0x0(1MB),BU=0x3(R/W),BW=0x0(8 bits) */
+ mtebc (pb2ap, 0x04815A80);
+ mtebc (pb2cr, 0xF0118000);
+
+ /* BAS=0xF02,BS=0x0(1MB),BU=0x3(R/W),BW=0x0( 8 bits) */
+ mtebc (pb3ap, 0x01815280);
+ mtebc (pb3cr, 0xF0218000);
+
+ /* BAS=0xF03,BS=0x0(1MB),BU=0x3(R/W),BW=0x0(8 bits) */
+ mtebc (pb7ap, 0x01815280);
+ mtebc (pb7cr, 0xF0318000);
+
+ /* set UART1 control to select CTS/RTS */
+#define FPGA_BRDC 0xF0300004
+ *(volatile char *) (FPGA_BRDC) |= 0x1;
+
+ return 0;
+}
+
+
+/* ------------------------------------------------------------------------- */
+
+/*
+ * Check Board Identity:
+ */
+
+int checkboard (void)
+{
+ unsigned char *s = getenv ("serial#");
+ unsigned char *e;
+
+ puts ("Board: ");
+
+ if (!s || strncmp (s, "WALNUT405", 9)) {
+ puts ("### No HW ID - assuming WALNUT405");
+ } else {
+ for (e = s; *e; ++e) {
+ if (*e == ' ')
+ break;
+ }
+ for (; s < e; ++s) {
+ putc (*s);
+ }
+ }
+ putc ('\n');
+
+ return (0);
+}
+
+
+/* -------------------------------------------------------------------------
+ initdram(int board_type) reads EEPROM via I2c. EEPROM contains all of
+ the necessary info for SDRAM controller configuration
+ ------------------------------------------------------------------------- */
+long int initdram (int board_type)
+{
+ long int ret;
+
+ ret = spd_sdram ();
+ return ret;
+}
+
+/* ------------------------------------------------------------------------- */
+
+int testdram (void)
+{
+ /* TODO: XXX XXX XXX */
+ printf ("test: xxx MB - ok\n");
+
+ return (0);
+}
+
+/* ------------------------------------------------------------------------- */
--- /dev/null
+/*
+ * (C) Copyright 2001
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <config.h>
+#include <mpc8xx.h>
+
+/* ------------------------------------------------------------------------- */
+
+#define _NOT_USED_ 0xFFFFFFFF
+
+const uint edo_60ns[] =
+{ 0x8ffbec24, 0x0ff3ec04, 0x0cf3ec04, 0x00f3ec04,
+ 0x00f3ec00, 0x37f7ec47, _NOT_USED_, _NOT_USED_,
+ 0x8fffec24, 0x0ffbec04, 0x08f3ec04, 0x07f3ec08,
+ 0x08f3ec04, 0x07f3ec48, 0x08f3ec04, 0x07f3ec48,
+ 0x08f3ec04, 0x07f3ec48, 0x1ff7ec47, _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ 0x8fffcc24, 0x0fefcc04, 0x0cafcc00, 0x11bfcc47,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ 0x8fffcc24, 0x0fefcc04, 0x0cafcc00, 0x03afcc4c,
+ 0x0cafcc00, 0x03afcc4c, 0x0cafcc00, 0x03afcc4c,
+ 0x0cafcc00, 0x33bfcc4f, _NOT_USED_, _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ 0xc0ffcc84, 0x00ffcc04, 0x07ffcc04, 0x3fffcc06,
+ 0xffffcc85, 0xffffcc05, _NOT_USED_, _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ 0x33ffcc07, _NOT_USED_, _NOT_USED_, _NOT_USED_ };
+
+/* ------------------------------------------------------------------------- */
+
+/*
+ * Check Board Identity:
+ */
+
+int checkboard (void)
+{
+ puts ("Board: AMX860\n");
+ return 0;
+}
+
+/* ------------------------------------------------------------------------- */
+
+long int initdram (int board_type)
+{
+
+ volatile immap_t *immap = (immap_t *)CFG_IMMR;
+ volatile memctl8xx_t *memctl = &immap->im_memctl;
+
+ /* AMX860: has 4 Mb of 60ns EDO DRAM, so start DRAM at 0 */
+
+ upmconfig(UPMA, (uint *) edo_60ns, sizeof(edo_60ns)/sizeof(uint));
+
+#ifndef CONFIG_AMX_RAM_EXT
+ memctl->memc_mptpr = 0x0400; /* divide by 16 */
+#else
+ memctl->memc_mptpr = 0x0200;
+#endif
+
+ memctl->memc_mamr = 0x30a21114;
+ memctl->memc_or2 = 0xffc00800;
+#ifndef CONFIG_AMX_RAM_EXT
+ memctl->memc_br2 = 0x81;
+
+ return (4 << 20);
+#else
+ memctl->memc_or1 = 0xff000800;
+ memctl->memc_br1 = 0x00000081;
+ memctl->memc_br2 = 0x01000081;
+
+ return (20 << 20);
+#endif
+}
projects / oweals / u-boot.git / commitdiff