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authorwdenk <wdenk>2003-09-10 22:30:53 +0000
committerwdenk <wdenk>2003-09-10 22:30:53 +0000
commit7205e4075d8b50e4dd89fe39ed03860b23cbb704 (patch)
tree0dfa865e7087ff4ee07967a2531c91ff5645a802 /board/sixnet/flash.c
parent149dded2b178bc0fb62cb6f61b87968d914b580a (diff)
* Patches by Denis Peter, 9 Sep 2003:
add FAT support for IDE, SCSI and USB * Patches by Gleb Natapov, 2 Sep 2003: - cleanup of POST code for unsupported architectures - MPC824x locks way0 of data cache for use as initial RAM; this patch unlocks it after relocation to RAM and invalidates the locked entries. * Patch by Gleb Natapov, 30 Aug 2003: new I2C driver for mpc107 bridge. Now works from flash. * Patch by Dave Ellis, 11 Aug 2003: - JFFS2: fix typo in common/cmd_jffs2.c - JFFS2: fix CFG_JFFS2_SORT_FRAGMENTS option - JFFS2: remove node version 0 warning - JFFS2: accept JFFS2 PADDING nodes - SXNI855T: add AM29LV800 support - SXNI855T: move environment from EEPROM to flash - SXNI855T: boot from JFFS2 in NOR or NAND flash * Patch by Bill Hargen, 11 Aug 2003: fixes for I2C on MPC8240 - fix i2c_write routine - fix iprobe command - eliminates use of global variables, plus dead code, cleanup.
Diffstat (limited to 'board/sixnet/flash.c')
-rw-r--r--board/sixnet/flash.c44
1 files changed, 44 insertions, 0 deletions
diff --git a/board/sixnet/flash.c b/board/sixnet/flash.c
index 225513acca..4ab6c1bdc4 100644
--- a/board/sixnet/flash.c
+++ b/board/sixnet/flash.c
@@ -23,6 +23,10 @@
#include <common.h>
#include <mpc8xx.h>
+/* environment.h defines the various CFG_ENV_... values in terms
+ * of whichever ones are given in the configuration file.
+ */
+#include <environment.h>
flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
@@ -104,6 +108,19 @@ unsigned long flash_init (void)
&flash_info[0]);
#endif
+#ifdef CFG_ENV_ADDR
+ flash_protect ( FLAG_PROTECT_SET,
+ CFG_ENV_ADDR,
+ CFG_ENV_ADDR + CFG_ENV_SIZE - 1, &flash_info[0]);
+#endif
+
+#ifdef CFG_ENV_ADDR_REDUND
+ flash_protect ( FLAG_PROTECT_SET,
+ CFG_ENV_ADDR_REDUND,
+ CFG_ENV_ADDR_REDUND + CFG_ENV_SIZE_REDUND - 1,
+ &flash_info[0]);
+#endif
+
return (size_b);
}
@@ -154,6 +171,21 @@ static void flash_get_offsets (ulong base, flash_info_t *info)
for( i = 0; i < info->sector_count; i++ )
info->start[i] = base + (i * sect_size);
}
+ else if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_AMD
+ && (info->flash_id & FLASH_TYPEMASK) == FLASH_AM800T) {
+
+ int sect_size; /* number of bytes/sector */
+
+ sect_size = 0x00010000 * (sizeof(FPW)/2);
+
+ /* set up sector start address table (top boot sector type) */
+ for (i = 0; i < info->sector_count - 3; i++)
+ info->start[i] = base + (i * sect_size);
+ i = info->sector_count - 1;
+ info->start[i--] = base + (info->size - 0x00004000) * (sizeof(FPW)/2);
+ info->start[i--] = base + (info->size - 0x00006000) * (sizeof(FPW)/2);
+ info->start[i--] = base + (info->size - 0x00008000) * (sizeof(FPW)/2);
+ }
}
/*-----------------------------------------------------------------------
@@ -196,6 +228,9 @@ void flash_print_info (flash_info_t *info)
}
switch (info->flash_id & FLASH_TYPEMASK) {
+ case FLASH_AM800T:
+ fmt = "29LV800B%s (8 Mbit, %s)\n";
+ break;
case FLASH_AM640U:
fmt = "29LV641D (64 Mbit, uniform sectors)\n";
break;
@@ -295,6 +330,12 @@ ulong flash_get_size (FPWV *addr, flash_info_t *info)
/* Check 16 bits or 32 bits of ID so work on 32 or 16 bit bus. */
if (info->flash_id != FLASH_UNKNOWN) switch (addr[1]) {
+ case (FPW)AMD_ID_LV800T:
+ info->flash_id += FLASH_AM800T;
+ info->sector_count = 19;
+ info->size = 0x00100000 * (sizeof(FPW)/2);
+ break; /* => 1 or 2 MiB */
+
case (FPW)AMD_ID_LV640U: /* 29LV640 and 29LV641 have same ID */
info->flash_id += FLASH_AM640U;
info->sector_count = 128;
@@ -401,6 +442,7 @@ static void flash_sync_real_protect(flash_info_t *info)
break;
case FLASH_AM640U:
+ case FLASH_AM800T:
default:
/* no hardware protect that we support */
break;
@@ -438,6 +480,7 @@ int flash_erase (flash_info_t *info, int s_first, int s_last)
case FLASH_28F320C3B:
case FLASH_28F640C3B:
case FLASH_AM640U:
+ case FLASH_AM800T:
break;
case FLASH_UNKNOWN:
default:
@@ -735,6 +778,7 @@ int flash_real_protect (flash_info_t * info, long sector, int prot)
break;
case FLASH_AM640U:
+ case FLASH_AM800T:
default:
/* no hardware protect that we support */
info->protect[sector] = prot;