diff options
Diffstat (limited to 'board/sixnet')
| -rw-r--r-- | board/sixnet/flash.c | 44 | ||||
| -rw-r--r-- | board/sixnet/sixnet.c | 68 |
2 files changed, 112 insertions, 0 deletions
diff --git a/board/sixnet/flash.c b/board/sixnet/flash.c index 225513a..4ab6c1b 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; diff --git a/board/sixnet/sixnet.c b/board/sixnet/sixnet.c index e33925c..4025b47 100644 --- a/board/sixnet/sixnet.c +++ b/board/sixnet/sixnet.c @@ -24,6 +24,7 @@ #include <common.h> #include <config.h> +#include <jffs2/jffs2.h> #include <mpc8xx.h> #include <net.h> /* for eth_init() */ #include <rtc.h> @@ -602,3 +603,70 @@ long int initdram(int board_type) return (size_sdram); } + +#ifdef CFG_JFFS_CUSTOM_PART + +static struct part_info part; + +#define jffs2_block(i) \ + ((struct jffs2_unknown_node*)(CFG_JFFS2_BASE + (i) * 65536)) + +struct part_info* jffs2_part_info(int part_num) +{ + DECLARE_GLOBAL_DATA_PTR; + bd_t *bd = gd->bd; + char* s; + int i; + int bootnor = 0; /* assume booting from NAND flash */ + + if (part_num != 0) + return 0; /* only support one partition */ + + if (part.usr_priv == (void*)1) + return ∂ /* already have part info */ + + memset(&part, 0, sizeof(part)); + + if (nand_dev_desc[0].ChipID == NAND_ChipID_UNKNOWN) + bootnor = 1; + else if (bd->bi_flashsize < 0x800000) + bootnor = 0; + else for (i = 0; !bootnor && i < 4; ++i) { + /* boot from NOR if JFFS2 info in any of + * first 4 erase blocks + */ + + if (jffs2_block(i)->magic == JFFS2_MAGIC_BITMASK) + bootnor = 1; + } + + if (bootnor) { + /* no NAND flash or boot in NOR, use NOR flash */ + part.offset = (unsigned char *)CFG_JFFS2_BASE; + part.size = CFG_JFFS2_SIZE; + } + else { + char readcmd[60]; + + /* boot info in NAND flash, get and use copy in RAM */ + + /* override info from environment if present */ + s = getenv("fsaddr"); + part.offset = s ? (void *)simple_strtoul(s, NULL, 16) + : (void *)CFG_JFFS2_RAMBASE; + s = getenv("fssize"); + part.size = s ? simple_strtoul(s, NULL, 16) + : CFG_JFFS2_RAMSIZE; + + /* read from nand flash */ + sprintf(readcmd, "nand read.jffs2 %x 0 %x", + (uint32_t)part.offset, part.size); + run_command(readcmd, 0); + } + + part.erasesize = 0; /* unused */ + part.usr_priv=(void*)1; /* ready */ + + return ∂ +} +#endif /* ifdef CFG_JFFS_CUSTOM_PART */ |