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-rw-r--r--board/bubinga405ep/bubinga405ep.c18
-rw-r--r--board/bubinga405ep/flash.c37
-rw-r--r--cpu/ppc4xx/start.S84
-rw-r--r--include/configs/BUBINGA405EP.h36
4 files changed, 139 insertions, 36 deletions
diff --git a/board/bubinga405ep/bubinga405ep.c b/board/bubinga405ep/bubinga405ep.c
index eb9baf4..8694ebe 100644
--- a/board/bubinga405ep/bubinga405ep.c
+++ b/board/bubinga405ep/bubinga405ep.c
@@ -23,7 +23,6 @@
long int spd_sdram (void);
#include <common.h>
-#include "bubinga405ep.h"
#include <asm/processor.h>
@@ -82,18 +81,11 @@ int checkboard (void)
unsigned char *s = getenv ("serial#");
unsigned char *e;
- puts ("Board: ");
-
- if (!s || strncmp (s, "BUBINGA405EP", 9)) {
- puts ("### No HW ID - assuming WALNUT405");
- } else {
- for (e = s; *e; ++e) {
- if (*e == ' ')
- break;
- }
- for (; s < e; ++s) {
- putc (*s);
- }
+ puts ("Board: IBM 405EP Eval Board");
+
+ if (s != NULL) {
+ puts (", serial# ");
+ puts (s);
}
putc ('\n');
diff --git a/board/bubinga405ep/flash.c b/board/bubinga405ep/flash.c
index 6a9907c..d4bd7ee 100644
--- a/board/bubinga405ep/flash.c
+++ b/board/bubinga405ep/flash.c
@@ -101,6 +101,11 @@ unsigned long flash_init (void)
FLASH_BASE0_PRELIM,
FLASH_BASE0_PRELIM+CFG_MONITOR_LEN-1,
&flash_info[0]);
+ /* Also protect sector containing initial power-up instruction */
+ (void)flash_protect(FLAG_PROTECT_SET,
+ 0xFFFFFFFC,
+ 0xFFFFFFFF,
+ &flash_info[0]);
size_b1 = 0 ;
flash_info[0].size = size_b0;
}
@@ -143,6 +148,16 @@ unsigned long flash_init (void)
base_b0+size_b0-CFG_MONITOR_LEN,
base_b0+size_b0-1,
&flash_info[0]);
+ /* Also protect sector containing initial power-up instruction */
+ /* (flash_protect() checks address range - other call ignored) */
+ (void)flash_protect(FLAG_PROTECT_SET,
+ 0xFFFFFFFC,
+ 0xFFFFFFFF,
+ &flash_info[0]);
+ (void)flash_protect(FLAG_PROTECT_SET,
+ 0xFFFFFFFC,
+ 0xFFFFFFFF,
+ &flash_info[1]);
if (size_b1) {
/* Re-do sizing to get full correct info */
@@ -493,18 +508,18 @@ int wait_for_DQ7(flash_info_t *info, int sect)
volatile FLASH_WORD_SIZE *addr = (FLASH_WORD_SIZE *)(info->start[sect]);
start = get_timer (0);
- last = start;
- while ((addr[0] & (FLASH_WORD_SIZE)0x00800080) != (FLASH_WORD_SIZE)0x00800080) {
- if ((now = get_timer(start)) > CFG_FLASH_ERASE_TOUT) {
- printf ("Timeout\n");
- return -1;
- }
- /* show that we're waiting */
- if ((now - last) > 1000) { /* every second */
- putc ('.');
- last = now;
+ last = 0;
+ while ((addr[0] & (FLASH_WORD_SIZE)0x00800080) != (FLASH_WORD_SIZE)0x00800080) {
+ if ((now = get_timer(start)) > CFG_FLASH_ERASE_TOUT) {
+ printf ("Timeout\n");
+ return -1;
+ }
+ /* show that we're waiting */
+ if ((now - last) > 1000) { /* every second */
+ putc ('.');
+ last = now;
+ }
}
- }
return 0;
}
diff --git a/cpu/ppc4xx/start.S b/cpu/ppc4xx/start.S
index 215a925..e25101a 100644
--- a/cpu/ppc4xx/start.S
+++ b/cpu/ppc4xx/start.S
@@ -1384,14 +1384,94 @@ trap_reloc:
/**************************************************************************/
#ifdef CONFIG_405EP
ppc405ep_init:
+
+#ifdef CONFIG_BUBINGA405EP
+ /*
+ * Initialize EBC chip selects 1 & 4 and GPIO pins (for alternate
+ * function) to support FPGA and NVRAM accesses below.
+ */
+
+ lis r3,GPIO0_OSRH@h /* config GPIO output select */
+ ori r3,r3,GPIO0_OSRH@l
+ lis r4,CFG_GPIO0_OSRH@h
+ ori r4,r4,CFG_GPIO0_OSRH@l
+ stw r4,0(r3)
+ lis r3,GPIO0_OSRL@h
+ ori r3,r3,GPIO0_OSRL@l
+ lis r4,CFG_GPIO0_OSRL@h
+ ori r4,r4,CFG_GPIO0_OSRL@l
+ stw r4,0(r3)
+
+ lis r3,GPIO0_ISR1H@h /* config GPIO input select */
+ ori r3,r3,GPIO0_ISR1H@l
+ lis r4,CFG_GPIO0_ISR1H@h
+ ori r4,r4,CFG_GPIO0_ISR1H@l
+ stw r4,0(r3)
+ lis r3,GPIO0_ISR1L@h
+ ori r3,r3,GPIO0_ISR1L@l
+ lis r4,CFG_GPIO0_ISR1L@h
+ ori r4,r4,CFG_GPIO0_ISR1L@l
+ stw r4,0(r3)
+
+ lis r3,GPIO0_TSRH@h /* config GPIO three-state select */
+ ori r3,r3,GPIO0_TSRH@l
+ lis r4,CFG_GPIO0_TSRH@h
+ ori r4,r4,CFG_GPIO0_TSRH@l
+ stw r4,0(r3)
+ lis r3,GPIO0_TSRL@h
+ ori r3,r3,GPIO0_TSRL@l
+ lis r4,CFG_GPIO0_TSRL@h
+ ori r4,r4,CFG_GPIO0_TSRL@l
+ stw r4,0(r3)
+
+ lis r3,GPIO0_TCR@h /* config GPIO driver output enables */
+ ori r3,r3,GPIO0_TCR@l
+ lis r4,CFG_GPIO0_TCR@h
+ ori r4,r4,CFG_GPIO0_TCR@l
+ stw r4,0(r3)
+
+ li r3,pb1ap /* program EBC bank 1 for RTC access */
+ mtdcr ebccfga,r3
+ lis r3,CFG_EBC_PB1AP@h
+ ori r3,r3,CFG_EBC_PB1AP@l
+ mtdcr ebccfgd,r3
+ li r3,pb1cr
+ mtdcr ebccfga,r3
+ lis r3,CFG_EBC_PB1CR@h
+ ori r3,r3,CFG_EBC_PB1CR@l
+ mtdcr ebccfgd,r3
+
+ li r3,pb1ap /* program EBC bank 1 for RTC access */
+ mtdcr ebccfga,r3
+ lis r3,CFG_EBC_PB1AP@h
+ ori r3,r3,CFG_EBC_PB1AP@l
+ mtdcr ebccfgd,r3
+ li r3,pb1cr
+ mtdcr ebccfga,r3
+ lis r3,CFG_EBC_PB1CR@h
+ ori r3,r3,CFG_EBC_PB1CR@l
+ mtdcr ebccfgd,r3
+
+ li r3,pb4ap /* program EBC bank 4 for FPGA access */
+ mtdcr ebccfga,r3
+ lis r3,CFG_EBC_PB4AP@h
+ ori r3,r3,CFG_EBC_PB4AP@l
+ mtdcr ebccfgd,r3
+ li r3,pb4cr
+ mtdcr ebccfga,r3
+ lis r3,CFG_EBC_PB4CR@h
+ ori r3,r3,CFG_EBC_PB4CR@l
+ mtdcr ebccfgd,r3
+#endif
+
+ addi r3,0,CPC0_PCI_HOST_CFG_EN
+#ifdef CONFIG_BUBINGA405EP
/*
!-----------------------------------------------------------------------
! Check FPGA for PCI internal/external arbitration
! If board is set to internal arbitration, update cpc0_pci
!-----------------------------------------------------------------------
*/
- addi r3,0,CPC0_PCI_HOST_CFG_EN
-#ifdef CONFIG_BUBINGA405EP
addis r5,r0,FPGA_REG1@h /* set offset for FPGA_REG1 */
ori r5,r5,FPGA_REG1@l
lbz r5,0x0(r5) /* read to get PCI arb selection */
diff --git a/include/configs/BUBINGA405EP.h b/include/configs/BUBINGA405EP.h
index 99fcbae..a485e4e 100644
--- a/include/configs/BUBINGA405EP.h
+++ b/include/configs/BUBINGA405EP.h
@@ -30,6 +30,7 @@
/* Debug options */
/*#define __DEBUG_START_FROM_SRAM__ */
+/*#define DEBUG 1*/
/*
@@ -148,13 +149,21 @@
*/
#define CONFIG_COMMANDS (CONFIG_CMD_DFL | \
- CFG_CMD_PCI | \
+ CFG_CMD_CACHE | \
+ CFG_CMD_DATE | \
+ CFG_CMD_DHCP | \
+ CFG_CMD_EEPROM | \
+ CFG_CMD_ELF | \
+ CFG_CMD_I2C | \
CFG_CMD_IRQ | \
CFG_CMD_KGDB | \
- CFG_CMD_DHCP | \
- CFG_CMD_DATE | \
- CFG_CMD_DATE | \
- CFG_CMD_ELF )
+ CFG_CMD_MII | \
+ CFG_CMD_NET | \
+ CFG_CMD_PCI | \
+ CFG_CMD_PING | \
+ CFG_CMD_REGINFO | \
+ CFG_CMD_SDRAM | \
+ 0 )
/* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
#include <cmd_confdefs.h>
@@ -207,6 +216,14 @@
#define CFG_I2C_SPEED 400000 /* I2C speed and slave address */
#define CFG_I2C_SLAVE 0x7F
+#define CFG_I2C_NOPROBES { 0x69 } /* avoid iprobe hangup (why?) */
+#define CFG_EEPROM_PAGE_WRITE_DELAY_MS 6 /* 24C02 requires 5ms delay */
+
+#if (CONFIG_COMMANDS & CFG_CMD_EEPROM)
+#define CFG_I2C_EEPROM_ADDR 0x50 /* I2C boot EEPROM (24C02W) */
+#define CFG_I2C_EEPROM_ADDR_LEN 1 /* Bytes of address */
+#endif
+
/*-----------------------------------------------------------------------
* PCI stuff
@@ -220,9 +237,11 @@
#define CONFIG_PCI_HOST PCI_HOST_FORCE /* select pci host function */
#define CONFIG_PCI_PNP /* do pci plug-and-play */
/* resource configuration */
+#define CONFIG_PCI_SCAN_SHOW /* show pci devices on startup */
-#define CFG_PCI_SUBSYS_VENDORID 0x0000 /* PCI Vendor ID: to-do!!! */
+#define CFG_PCI_SUBSYS_VENDORID 0x1014 /* IBM */
#define CFG_PCI_SUBSYS_DEVICEID 0x0000 /* PCI Device ID: to-do!!! */
+#define CFG_PCI_CLASSCODE 0x0600 /* PCI Class Code: bridge/host */
#define CFG_PCI_PTM1LA 0x00000000 /* point to sdram */
#define CFG_PCI_PTM1MS 0x80000001 /* 2GB, enable hard-wired to 1 */
#define CFG_PCI_PTM1PCI 0x00000000 /* Host: use this pci address */
@@ -291,7 +310,7 @@
#define CFG_NVRAM_SIZE 0x1ff8 /* NVRAM size */
#ifdef CFG_ENV_IS_IN_NVRAM
-#define CFG_ENV_SIZE 0x1000 /* Size of Environment vars */
+#define CFG_ENV_SIZE 0x0ff8 /* Size of Environment vars */
#define CFG_ENV_ADDR \
(CFG_NVRAM_BASE_ADDR+CFG_NVRAM_SIZE-CFG_ENV_SIZE) /* Env */
#endif
@@ -314,9 +333,6 @@
#define FLASH_BASE1_PRELIM 0 /* FLASH bank #1 */
-/* Configuration Port location */
-#define CONFIG_PORT_ADDR 0xF0000500
-
/*-----------------------------------------------------------------------
* Definitions for initial stack pointer and data area (in data cache)
*/
generated by cgit v1.1 at 2024-11-17 03:07:56 +0000