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authorwdenk <wdenk>2003-05-23 11:38:58 +0000
committerwdenk <wdenk>2003-05-23 11:38:58 +0000
commit33149b8812d12dc57f31fa7bf2ec0c1451dbf6f0 (patch)
tree4d06ca4a5b01325e24293577cc47bb9a55285985 /board/mpl/common/flash.c
parent9919f13cc1d39c0fe4ff0162673afe657539d762 (diff)
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Patch by Denis Peter, 19 Mai 2003:
add support for the MIP405-3 board
Diffstat (limited to 'board/mpl/common/flash.c')
-rw-r--r--board/mpl/common/flash.c360
1 files changed, 110 insertions, 250 deletions
diff --git a/board/mpl/common/flash.c b/board/mpl/common/flash.c
index f0c541b..483d0ff 100644
--- a/board/mpl/common/flash.c
+++ b/board/mpl/common/flash.c
@@ -30,7 +30,7 @@
/*
* Modified 3/7/2001
- * - adopted for pip405, Denis Peter, MPL AG Switzerland
+ * - adapted for pip405, Denis Peter, MPL AG Switzerland
* TODO:
* clean-up
*/
@@ -38,12 +38,6 @@
#include <common.h>
#include <ppc4xx.h>
#include <asm/processor.h>
-#ifdef CONFIG_PIP405
-#include "../pip405/pip405.h"
-#endif
-#ifdef CONFIG_MIP405
-#include "../mip405/mip405.h"
-#endif
#include "common_util.h"
flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
@@ -52,23 +46,10 @@ flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
*/
static ulong flash_get_size (vu_long *addr, flash_info_t *info);
static int write_word (flash_info_t *info, ulong dest, ulong data);
-static void flash_get_offsets (ulong base, flash_info_t *info);
void unlock_intel_sectors(flash_info_t *info,ulong addr,ulong cnt);
-#ifdef CONFIG_ADCIOP
-#define ADDR0 0x0aa9
-#define ADDR1 0x0556
-#define FLASH_WORD_SIZE unsigned char
-#endif
-
-#ifdef CONFIG_CPCI405
-#define ADDR0 0x5555
-#define ADDR1 0x2aaa
-#define FLASH_WORD_SIZE unsigned short
-#endif
-
#ifdef CONFIG_PIP405
#define ADDR0 0x5555
#define ADDR1 0x2aaa
@@ -92,16 +73,17 @@ unsigned long flash_init (void)
{
unsigned long size_b0, size_b1;
int i;
- unsigned long pbcr;
- unsigned long base_b0, base_b1;
- unsigned char rc;
-
- rc=switch_cs(FALSE); /* map Flash High */
- if(rc)
- printf("(MPS Boot) ");
+ /* Since we are relocated, we can set-up the CS finally */
+ setup_cs_reloc();
+ /* get and display boot mode */
+ i=get_boot_mode();
+ if(i & BOOT_PCI)
+ printf("(PCI Boot %s Map) ",(i & BOOT_MPS) ?
+ "MPS" : "Flash");
else
- printf("(Flash Boot) ");
+ printf("(%s Boot) ",(i & BOOT_MPS) ?
+ "MPS" : "Flash");
/* Init: no FLASHes known */
for (i=0; i<CFG_MAX_FLASH_BANKS; ++i) {
flash_info[i].flash_id = FLASH_UNKNOWN;
@@ -115,140 +97,39 @@ unsigned long flash_init (void)
printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
size_b0, size_b0<<20);
}
- /* Only one bank */
- if (CFG_MAX_FLASH_BANKS == 1)
- {
- /* Setup offsets */
- /* flash_get_offsets (FLASH_BASE0_PRELIM, &flash_info[0]); */
- /* Monitor protection ON by default */
+ /* protect the bootloader */
+ /* Monitor protection ON by default */
#if CFG_MONITOR_BASE >= CFG_FLASH_BASE
- flash_protect(FLAG_PROTECT_SET,
- CFG_MONITOR_BASE,
- CFG_MONITOR_BASE+CFG_MONITOR_LEN-1,
- &flash_info[0]);
+ flash_protect(FLAG_PROTECT_SET,
+ CFG_MONITOR_BASE,
+ CFG_MONITOR_BASE+CFG_MONITOR_LEN-1,
+ &flash_info[0]);
#endif
- size_b1 = 0 ;
- flash_info[0].size = size_b0;
- }
-
- /* 2 banks */
- else
- {
- size_b1 = flash_get_size((vu_long *)FLASH_BASE1_PRELIM, &flash_info[1]);
-
- /* Re-do sizing to get full correct info */
-
- if (size_b1)
- {
- mtdcr(ebccfga, pb0cr);
- pbcr = mfdcr(ebccfgd);
- mtdcr(ebccfga, pb0cr);
- base_b1 = -size_b1;
- pbcr = (pbcr & 0x0001ffff) | base_b1 | (((size_b1/1024/1024)-1)<<17);
- mtdcr(ebccfgd, pbcr);
- /* printf("pb1cr = %x\n", pbcr); */
- }
-
- if (size_b0)
- {
- mtdcr(ebccfga, pb1cr);
- pbcr = mfdcr(ebccfgd);
- mtdcr(ebccfga, pb1cr);
- base_b0 = base_b1 - size_b0;
- pbcr = (pbcr & 0x0001ffff) | base_b0 | (((size_b0/1024/1024)-1)<<17);
- mtdcr(ebccfgd, pbcr);
- /* printf("pb0cr = %x\n", pbcr); */
- }
-
- size_b0 = flash_get_size((vu_long *)base_b0, &flash_info[0]);
-
- flash_get_offsets (base_b0, &flash_info[0]);
-
- /* monitor protection ON by default */
- (void)flash_protect(FLAG_PROTECT_SET,
- base_b0+size_b0-CFG_MONITOR_LEN,
- base_b0+size_b0-1,
- &flash_info[0]);
-
- if (size_b1) {
- /* Re-do sizing to get full correct info */
- size_b1 = flash_get_size((vu_long *)base_b1, &flash_info[1]);
-
- flash_get_offsets (base_b1, &flash_info[1]);
-
- /* monitor protection ON by default */
- (void)flash_protect(FLAG_PROTECT_SET,
- base_b1+size_b1-CFG_MONITOR_LEN,
- base_b1+size_b1-1,
- &flash_info[1]);
- /* monitor protection OFF by default (one is enough) */
- (void)flash_protect(FLAG_PROTECT_CLEAR,
- base_b0+size_b0-CFG_MONITOR_LEN,
- base_b0+size_b0-1,
- &flash_info[0]);
- } else {
- flash_info[1].flash_id = FLASH_UNKNOWN;
- flash_info[1].sector_count = -1;
- }
-
- flash_info[0].size = size_b0;
- flash_info[1].size = size_b1;
- }/* else 2 banks */
- switch_cs(rc); /* switch mode back */
- return (size_b0 + size_b1);
-}
-
-
-static void flash_get_offsets (ulong base, flash_info_t *info)
-{
- return;
-}
+ size_b1 = 0 ;
+ flash_info[0].size = size_b0;
#if 0
-/*-----------------------------------------------------------------------
- */
-static void flash_get_offsets (ulong base, flash_info_t *info)
-{
- int i;
-
- /* set up sector start address table */
- if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) ||
- (info->flash_id == FLASH_AM040)){
- for (i = 0; i < info->sector_count; i++)
- info->start[i] = base + (i * 0x00010000);
- }
- else {
- if (info->flash_id & FLASH_BTYPE) {
- /* set sector offsets for bottom boot block type */
- info->start[0] = base + 0x00000000;
- info->start[1] = base + 0x00004000;
- info->start[2] = base + 0x00006000;
- info->start[3] = base + 0x00008000;
- for (i = 4; i < info->sector_count; i++) {
- info->start[i] = base + (i * 0x00010000) - 0x00030000;
- }
- } else {
- /* set sector offsets for top boot block type */
- i = info->sector_count - 1;
- info->start[i--] = base + info->size - 0x00004000;
- info->start[i--] = base + info->size - 0x00006000;
- info->start[i--] = base + info->size - 0x00008000;
- for (; i >= 0; i--) {
- info->start[i] = base + i * 0x00010000;
- }
- }
- }
+ /* include this if you want to test if
+ the relocation has be done ok.
+ This will disable both Chipselects */
+ mtdcr (ebccfga, pb0cr);
+ mtdcr (ebccfgd, 0L);
+ mtdcr (ebccfga, pb1cr);
+ mtdcr (ebccfgd, 0L);
+ printf("CS0 & CS1 switched off for test\n");
+#endif
+ return (size_b0);
}
-#endif
+
/*-----------------------------------------------------------------------
*/
void flash_print_info (flash_info_t *info)
{
int i;
- int k;
- int size;
- int erased;
- volatile unsigned long *flash;
+ int k;
+ int size;
+ int erased;
+ volatile unsigned long *flash;
if (info->flash_id == FLASH_UNKNOWN) {
printf ("missing or unknown FLASH type\n");
@@ -297,40 +178,30 @@ void flash_print_info (flash_info_t *info)
printf (" Sector Start Addresses:");
for (i=0; i<info->sector_count; ++i) {
- /*
- * Check if whole sector is erased
- */
+ /*
+ * Check if whole sector is erased
+ */
if (i != (info->sector_count-1))
- size = info->start[i+1] - info->start[i];
+ size = info->start[i+1] - info->start[i];
else
- size = info->start[0] + info->size - info->start[i];
- erased = 1;
- flash = (volatile unsigned long *)info->start[i];
- size = size >> 2; /* divide by 4 for longword access */
- for (k=0; k<size; k++)
- {
- if (*flash++ != 0xffffffff)
- {
- erased = 0;
+ size = info->start[0] + info->size - info->start[i];
+ erased = 1;
+ flash = (volatile unsigned long *)info->start[i];
+ size = size >> 2; /* divide by 4 for longword access */
+ for (k=0; k<size; k++) {
+ if (*flash++ != 0xffffffff) {
+ erased = 0;
break;
}
- }
+ }
if ((i % 5) == 0)
printf ("\n ");
-#if 0 /* test-only */
- printf (" %08lX%s",
- info->start[i],
- info->protect[i] ? " (RO)" : " "
-#else
printf (" %08lX%s%s",
info->start[i],
erased ? " E" : " ",
- info->protect[i] ? "RO " : " "
-#endif
- );
+ info->protect[i] ? "RO " : " ");
}
printf ("\n");
-
}
/*-----------------------------------------------------------------------
@@ -457,21 +328,22 @@ static ulong flash_get_size (vu_long *addr, flash_info_t *info)
}
/* set up sector start address table */
- if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) ||
- (info->flash_id == FLASH_AM040)){
+ if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) ||
+ (info->flash_id == FLASH_AM040)){
for (i = 0; i < info->sector_count; i++)
info->start[i] = base + (i * 0x00010000);
- } else {
+ }
+ else {
if (info->flash_id & FLASH_BTYPE) {
- /* set sector offsets for bottom boot block type */
- info->start[0] = base + 0x00000000;
- info->start[1] = base + 0x00004000;
- info->start[2] = base + 0x00006000;
- info->start[3] = base + 0x00008000;
- for (i = 4; i < info->sector_count; i++)
- info->start[i] = base + (i * 0x00010000) - 0x00030000;
- }
- else {
+ /* set sector offsets for bottom boot block type */
+ info->start[0] = base + 0x00000000;
+ info->start[1] = base + 0x00004000;
+ info->start[2] = base + 0x00006000;
+ info->start[3] = base + 0x00008000;
+ for (i = 4; i < info->sector_count; i++)
+ info->start[i] = base + (i * 0x00010000) - 0x00030000;
+ }
+ else {
/* set sector offsets for top boot block type */
i = info->sector_count - 1;
if(info->sector_count==71) {
@@ -501,52 +373,41 @@ static ulong flash_get_size (vu_long *addr, flash_info_t *info)
/* read sector protection at sector address, (A7 .. A0) = 0x02 */
/* D0 = 1 if protected */
addr2 = (volatile FLASH_WORD_SIZE *)(info->start[i]);
- if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL)
- info->protect[i] = 0;
- else
- info->protect[i] = addr2[2] & 1;
+ if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL)
+ info->protect[i] = 0;
+ else
+ info->protect[i] = addr2[2] & 1;
}
/*
* Prevent writes to uninitialized FLASH.
*/
if (info->flash_id != FLASH_UNKNOWN) {
-#if 0 /* test-only */
-#ifdef CONFIG_ADCIOP
- addr2 = (volatile unsigned char *)info->start[0];
- addr2[ADDR0] = 0xAA;
- addr2[ADDR1] = 0x55;
- addr2[ADDR0] = 0xF0; /* reset bank */
-#else
- addr2 = (FLASH_WORD_SIZE *)info->start[0];
- *addr2 = (FLASH_WORD_SIZE)0x00F000F0; /* reset bank */
-#endif
-#else /* test-only */
addr2 = (FLASH_WORD_SIZE *)info->start[0];
*addr2 = (FLASH_WORD_SIZE)0x00F000F0; /* reset bank */
-#endif /* test-only */
}
return (info->size);
}
+
int wait_for_DQ7(flash_info_t *info, int sect)
{
ulong start, now, last;
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 = 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;
+ }
+ }
return 0;
}
@@ -555,20 +416,20 @@ int intel_wait_for_DQ7(flash_info_t *info, int sect)
ulong start, now, last;
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;
- }
- }
- addr[0]=(FLASH_WORD_SIZE)0x00500050;
+ 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;
+ }
+ }
+ addr[0]=(FLASH_WORD_SIZE)0x00500050;
return 0;
}
@@ -621,7 +482,7 @@ int flash_erase (flash_info_t *info, int s_first, int s_last)
if (info->protect[sect] == 0) { /* not protected */
addr2 = (FLASH_WORD_SIZE *)(info->start[sect]);
/* printf("Erasing sector %p\n", addr2); */ /* CLH */
- if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) {
+ if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) {
addr[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA;
addr[ADDR1] = (FLASH_WORD_SIZE)0x00550055;
addr[ADDR0] = (FLASH_WORD_SIZE)0x00800080;
@@ -630,16 +491,16 @@ int flash_erase (flash_info_t *info, int s_first, int s_last)
addr2[0] = (FLASH_WORD_SIZE)0x00500050; /* block erase */
for (i=0; i<50; i++)
udelay(1000); /* wait 1 ms */
- wait_for_DQ7(info, sect);
- }
- else {
- if((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL){
+ wait_for_DQ7(info, sect);
+ }
+ else {
+ if((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL){
addr2[0] = (FLASH_WORD_SIZE)0x00600060; /* unlock sector */
addr2[0] = (FLASH_WORD_SIZE)0x00D000D0; /* sector erase */
- intel_wait_for_DQ7(info, sect);
+ intel_wait_for_DQ7(info, sect);
addr2[0] = (FLASH_WORD_SIZE)0x00200020; /* sector erase */
addr2[0] = (FLASH_WORD_SIZE)0x00D000D0; /* sector erase */
- intel_wait_for_DQ7(info, sect);
+ intel_wait_for_DQ7(info, sect);
}
else {
addr[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA;
@@ -648,18 +509,18 @@ int flash_erase (flash_info_t *info, int s_first, int s_last)
addr[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA;
addr[ADDR1] = (FLASH_WORD_SIZE)0x00550055;
addr2[0] = (FLASH_WORD_SIZE)0x00300030; /* sector erase */
- wait_for_DQ7(info, sect);
- }
- }
- l_sect = sect;
- /*
- * Wait for each sector to complete, it's more
- * reliable. According to AMD Spec, you must
- * issue all erase commands within a specified
- * timeout. This has been seen to fail, especially
- * if printf()s are included (for debug)!!
- */
- /* wait_for_DQ7(info, sect); */
+ wait_for_DQ7(info, sect);
+ }
+ }
+ l_sect = sect;
+ /*
+ * Wait for each sector to complete, it's more
+ * reliable. According to AMD Spec, you must
+ * issue all erase commands within a specified
+ * timeout. This has been seen to fail, especially
+ * if printf()s are included (for debug)!!
+ */
+ /* wait_for_DQ7(info, sect); */
}
}
@@ -688,6 +549,7 @@ DONE:
return 0;
}
+
void unlock_intel_sectors(flash_info_t *info,ulong addr,ulong cnt)
{
int i;
@@ -707,8 +569,6 @@ void unlock_intel_sectors(flash_info_t *info,ulong addr,ulong cnt)
i++;
c-=(info->start[i]-info->start[i-1]);
}while(c>0);
-
-
}