void ext_bus_cntlr_init(void);
void configure_ppc440ep_pins(void);
+int is_nand_selected(void);
+
+unsigned char cfg_simulate_spd_eeprom[128];
gpio_param_s gpio_tab[GPIO_GROUP_MAX][GPIO_MAX];
#if 0
EBC0_BNCR_BW_8BIT
#define EBC0_BNCR_SMALL_FLASH_CS4 \
- EBC0_BNCR_BAS_ENCODE(0x87800000) | \
- EBC0_BNCR_BS_8MB | \
+ EBC0_BNCR_BAS_ENCODE(0x87F00000) | \
+ EBC0_BNCR_BS_1MB | \
EBC0_BNCR_BU_RW | \
- EBC0_BNCR_BW_16BIT
+ EBC0_BNCR_BW_8BIT
/* Large Flash or SRAM */
#define EBC0_BNAP_LARGE_FLASH_OR_SRAM \
return 0;
}
-int checkboard(void)
+#if (CONFIG_COMMANDS & CFG_CMD_NAND)
+#include <linux/mtd/nand_legacy.h>
+extern struct nand_chip nand_dev_desc[CFG_MAX_NAND_DEVICE];
+
+/*----------------------------------------------------------------------------+
+ | nand_reset.
+ | Reset Nand flash
+ | This routine will abort previous cmd
+ +----------------------------------------------------------------------------*/
+int nand_reset(ulong addr)
{
- sys_info_t sysinfo;
- unsigned char *s = getenv("serial#");
+ int wait=0, stat=0;
+
+ out8(addr + NAND_CMD_REG, NAND0_CMD_RESET);
+ out8(addr + NAND_CMD_REG, NAND0_CMD_READ_STATUS);
+
+ while ((stat != 0xc0) && (wait != 0xffff)) {
+ stat = in8(addr + NAND_DATA_REG);
+ wait++;
+ }
+
+ if (stat == 0xc0) {
+ return 0;
+ } else {
+ printf("NAND Reset timeout.\n");
+ return -1;
+ }
+}
+
+void board_nand_set_device(int cs, ulong addr)
+{
+ /* Set NandFlash Core Configuration Register */
+ out32(addr + NAND_CCR_REG, 0x00001000 | (cs << 24));
+
+ switch (cs) {
+ case 1:
+ /* -------
+ * NAND0
+ * -------
+ * K9F1208U0A : 4 addr cyc, 1 col + 3 Row
+ * Set NDF1CR - Enable External CS1 in NAND FLASH controller
+ */
+ out32(addr + NAND_CR1_REG, 0x80002222);
+ break;
+
+ case 2:
+ /* -------
+ * NAND1
+ * -------
+ * K9K2G0B : 5 addr cyc, 2 col + 3 Row
+ * Set NDF2CR : Enable External CS2 in NAND FLASH controller
+ */
+ out32(addr + NAND_CR2_REG, 0xC0007777);
+ break;
+ }
+
+ /* Perform Reset Command */
+ if (nand_reset(addr) != 0)
+ return;
+}
+
+void nand_init(void)
+{
+ board_nand_set_device(1, CFG_NAND_ADDR);
+
+ nand_probe(CFG_NAND_ADDR);
+ if (nand_dev_desc[0].ChipID != NAND_ChipID_UNKNOWN) {
+ print_size(nand_dev_desc[0].totlen, "\n");
+ }
+
+#if 0 /* NAND1 not supported yet */
+ board_nand_set_device(2, CFG_NAND2_ADDR);
- get_sys_info(&sysinfo);
+ nand_probe(CFG_NAND2_ADDR);
+ if (nand_dev_desc[0].ChipID != NAND_ChipID_UNKNOWN) {
+ print_size(nand_dev_desc[0].totlen, "\n");
+ }
+#endif
+}
+#endif /* (CONFIG_COMMANDS & CFG_CMD_NAND) */
+
+int checkboard(void)
+{
+ char *s = getenv("serial#");
printf("Board: Bamboo - AMCC PPC440EP Evaluation Board");
if (s != NULL) {
}
putc('\n');
- printf("\tVCO: %lu MHz\n", sysinfo.freqVCOMhz / 1000000);
- printf("\tCPU: %lu MHz\n", sysinfo.freqProcessor / 1000000);
- printf("\tPLB: %lu MHz\n", sysinfo.freqPLB / 1000000);
- printf("\tOPB: %lu MHz\n", sysinfo.freqOPB / 1000000);
- printf("\tEPB: %lu MHz\n", sysinfo.freqEPB / 1000000);
-
return (0);
}
/*************************************************************************
*
- * fixed_sdram_init -- Bamboo has one bank onboard sdram (plus DIMM)
+ * init_spd_array -- Bamboo has one bank onboard sdram (plus DIMM)
*
* Fixed memory is composed of :
* MT46V16M16TG-75 from Micron (x 2), 256Mb, 16 M x16, DDR266,
* PLB @ 133 MHz
*
************************************************************************/
-void fixed_sdram_init(void)
+static void init_spd_array(void)
{
- /*
- * clear this first, if the DDR is enabled by a debugger
- * then you can not make changes.
- */
- mtsdram(mem_cfg0, 0x00000000); /* Disable EEC */
+ cfg_simulate_spd_eeprom[8] = 0x04; /* 2.5 Volt */
+ cfg_simulate_spd_eeprom[2] = 0x07; /* DDR ram */
+
+#ifdef CONFIG_DDR_ECC
+ cfg_simulate_spd_eeprom[11] = 0x02; /* ECC ON : 02 OFF : 00 */
+ cfg_simulate_spd_eeprom[31] = 0x08; /* bankSizeID: 32MB */
+ cfg_simulate_spd_eeprom[3] = 0x0C; /* num Row Addr: 12 */
+#else
+ cfg_simulate_spd_eeprom[11] = 0x00; /* ECC ON : 02 OFF : 00 */
+ cfg_simulate_spd_eeprom[31] = 0x10; /* bankSizeID: 64MB */
+ cfg_simulate_spd_eeprom[3] = 0x0D; /* num Row Addr: 13 */
+#endif
- /*--------------------------------------------------------------------
- * Setup for board-specific specific mem
- *------------------------------------------------------------------*/
- /*
- * Following for CAS Latency = 2.5 @ 133 MHz PLB
- */
- mtsdram(mem_b0cr, 0x00082001);
- mtsdram(mem_b1cr, 0x00000000);
- mtsdram(mem_b2cr, 0x00000000);
- mtsdram(mem_b3cr, 0x00000000);
+ cfg_simulate_spd_eeprom[4] = 0x09; /* numColAddr: 9 */
+ cfg_simulate_spd_eeprom[5] = 0x01; /* numBanks: 1 */
+ cfg_simulate_spd_eeprom[0] = 0x80; /* number of SPD bytes used: 128 */
+ cfg_simulate_spd_eeprom[1] = 0x08; /* total number bytes in SPD device = 256 */
+ cfg_simulate_spd_eeprom[21] = 0x00; /* not registered: 0 registered : 0x02*/
+ cfg_simulate_spd_eeprom[6] = 0x20; /* Module data width: 32 bits */
+ cfg_simulate_spd_eeprom[7] = 0x00; /* Module data width continued: +0 */
+ cfg_simulate_spd_eeprom[15] = 0x01; /* wcsbc = 1 */
+ cfg_simulate_spd_eeprom[27] = 0x50; /* tRpNs = 20 ns */
+ cfg_simulate_spd_eeprom[29] = 0x50; /* tRcdNs = 20 ns */
+
+ cfg_simulate_spd_eeprom[30] = 45; /* tRasNs */
+
+ cfg_simulate_spd_eeprom[18] = 0x0C; /* casBit (2,2.5) */
+
+ cfg_simulate_spd_eeprom[9] = 0x75; /* SDRAM Cycle Time (cas latency 2.5) = 7.5 ns */
+ cfg_simulate_spd_eeprom[23] = 0xA0; /* SDRAM Cycle Time (cas latency 2) = 10 ns */
+ cfg_simulate_spd_eeprom[25] = 0x00; /* SDRAM Cycle Time (cas latency 1.5) = N.A */
+ cfg_simulate_spd_eeprom[12] = 0x82; /* refresh Rate Type: Normal (15.625us) + Self refresh */
}
long int initdram (int board_type)
long dram_size = 0;
/*
- * First init bank0 (onboard sdram) and then configure the DIMM-slots
+ * First write simulated values in eeprom array for onboard bank 0
*/
- fixed_sdram_init();
- dram_size = spd_sdram (0);
+ init_spd_array();
+
+ dram_size = spd_sdram();
return dram_size;
}
#if defined(CONFIG_PCI) && defined(CFG_PCI_PRE_INIT)
int pci_pre_init(struct pci_controller *hose)
{
- unsigned long strap;
unsigned long addr;
- /*--------------------------------------------------------------------------+
- * Bamboo is always configured as the host & requires the
- * PCI arbiter to be enabled.
- *--------------------------------------------------------------------------*/
- mfsdr(sdr_sdstp1, strap);
- if ((strap & SDR0_SDSTP1_PAE_MASK) == 0) {
- printf("PCI: SDR0_STRP1[PAE] not set.\n");
- printf("PCI: Configuration aborted.\n");
- return 0;
- }
-
/*-------------------------------------------------------------------------+
| Set priority for all PLB3 devices to 0.
| Set PLB3 arbiter to fair mode.
+----------------------------------------------------------------------------*/
int is_nand_selected(void)
{
- return FALSE; /* test-only */
+#ifdef CONFIG_BAMBOO_NAND
+ return TRUE;
+#else
+ return FALSE;
+#endif
}
/*----------------------------------------------------------------------------+
/* NAND Flash */
ebc0_cs1_bnap_value = EBC0_BNAP_NAND_FLASH;
ebc0_cs1_bncr_value = EBC0_BNCR_NAND_FLASH_CS1;
- /*ebc0_cs2_bnap_value = EBC0_BNAP_NAND_FLASH;
- ebc0_cs2_bncr_value = EBC0_BNCR_NAND_FLASH_CS2;
- ebc0_cs3_bnap_value = EBC0_BNAP_NAND_FLASH;
- ebc0_cs3_bncr_value = EBC0_BNCR_NAND_FLASH_CS3;*/
- ebc0_cs2_bnap_value = 0;
- ebc0_cs2_bncr_value = 0;
+ ebc0_cs2_bnap_value = EBC0_BNAP_NAND_FLASH;
+ ebc0_cs2_bncr_value = EBC0_BNCR_NAND_FLASH_CS2;
ebc0_cs3_bnap_value = 0;
ebc0_cs3_bncr_value = 0;
} else {
+----------------------------------------------------------------------------*/
uart_config_nb_t get_uart_configuration(void)
{
- return (L4); /* test-only */
+ return (L4);
}
/*----------------------------------------------------------------------------+
fpga_selection_1_reg = in8(FPGA_SELECTION_1_REG) &~FPGA_SEL_1_REG_NF_SELEC_MASK;
fpga_selection_1_reg |= FPGA_SEL_1_REG_NF0_SEL_BY_NFCS1;
- /*fpga_selection_1_reg |= FPGA_SEL_1_REG_NF1_SEL_BY_NFCS2; */
- /*fpga_selection_1_reg |= FPGA_SEL_1_REG_NF1_SEL_BY_NFCS3; */
+ fpga_selection_1_reg |= FPGA_SEL_1_REG_NF1_SEL_BY_NFCS2;
out8(FPGA_SELECTION_1_REG,fpga_selection_1_reg);
}
*(core_select_P+UIC_0_3) = CORE_SELECTED;
*(core_select_P+UIC_4_9) = CORE_SELECTED;
- *(core_select_P+SCP_CORE) = CORE_SELECTED;
- *(core_select_P+DMA_CHANNEL_CD) = CORE_SELECTED;
- *(core_select_P+PACKET_REJ_FUNC_AVAIL) = CORE_SELECTED;
+ *(core_select_P+SCP_CORE) = CORE_SELECTED;
+ *(core_select_P+DMA_CHANNEL_CD) = CORE_SELECTED;
+ *(core_select_P+PACKET_REJ_FUNC_AVAIL) = CORE_SELECTED;
*(core_select_P+USB1_DEVICE) = CORE_SELECTED;
+ if (is_nand_selected()) {
+ *(core_select_P+NAND_FLASH) = CORE_SELECTED;
+ }
+
*config_val_P = CONFIG_IS_VALID;
}
SDR0_CUST0_NDFC_ENABLE |
SDR0_CUST0_NDFC_BW_8_BIT |
SDR0_CUST0_NDFC_ARE_MASK |
- SDR0_CUST0_CHIPSELGAT_EN1 );
- /*SDR0_CUST0_CHIPSELGAT_EN2 ); */
- /*SDR0_CUST0_CHIPSELGAT_EN3 ); */
+ SDR0_CUST0_CHIPSELGAT_EN1 |
+ SDR0_CUST0_CHIPSELGAT_EN2);
ndfc_selection_in_fpga();
}
projects / oweals / u-boot.git / blobdiff