+++ /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)
-{
- char str[64];
- int i = getenv_r ("serial#", str, sizeof (str));
-
- puts ("Board: ");
-
- if (!i || strncmp (str, "TQM82", 5)) {
- 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;
- volatile uint *sdmr_ptr;
- volatile uint *orx_ptr;
- ulong maxsize, size;
- int i;
-
- /* 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;
-
- size = get_ram_size((long *)base, maxsize);
- *orx_ptr = orx | ~(size - 1);
-
- return (size);
-}
-
-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);
-}
-
-/* ------------------------------------------------------------------------- */
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