/* Probe for NVRAM header */
static int
early_nvram_init(void)
{
struct nvram_header *header;
int i;
u32 *src, *dst;
#ifdef CONFIG_MTD_NFLASH
hndnand_t *nfl_info = NULL;
uint32 blocksize;
#endif
char *nvram_space_str;
int bootdev;
uint32 flash_base;
uint32 lim = SI_FLASH_WINDOW;
uint32 off;
hndsflash_t *sfl_info;
header = (struct nvram_header *)ram_nvram_buf;
if (header->magic == NVRAM_MAGIC) {
if (nvram_calc_crc(header) == (uint8)header->crc_ver_init) {
nvram_inram = TRUE;
goto found;
}
}
bootdev = soc_boot_dev((void *)sih);
#ifdef CONFIG_MTD_NFLASH
if (bootdev == SOC_BOOTDEV_NANDFLASH) {
if ((nfl_info = hndnand_init(sih)) == NULL)
return -1;
flash_base = nfl_info->base;
blocksize = nfl_info->blocksize;
off = blocksize;
for (; off < NFL_BOOT_SIZE; off += blocksize) {
if (hndnand_checkbadb(nfl_info, off) != 0)
continue;
header = (struct nvram_header *)(flash_base + off);
if (header->magic != NVRAM_MAGIC)
continue;
/* Read into the nand_nvram */
if ((header = nand_find_nvram(nfl_info, off)) == NULL)
continue;
if (nvram_calc_crc(header) == (uint8)header->crc_ver_init)
goto found;
}
}
else
#endif
if (bootdev == SOC_BOOTDEV_SFLASH ||
bootdev == SOC_BOOTDEV_ROM) {
/* Boot from SFLASH or ROM */
if ((sfl_info = hndsflash_init(sih)) == NULL)
return -1;
lim = sfl_info->size;
BUG_ON(request_resource(&iomem_resource, &norflash_region));
flash_base = sfl_info->base;
BUG_ON(IS_ERR_OR_NULL((void *)flash_base));
off = FLASH_MIN;
while (off <= lim) {
/* Windowed flash access */
header = (struct nvram_header *)(flash_base + off - nvram_space);
if (header->magic == NVRAM_MAGIC)
if (nvram_calc_crc(header) == (uint8)header->crc_ver_init) {
goto found;
}
off += DEF_NVRAM_SPACE;
}
}
else {
/* This is the case bootdev == SOC_BOOTDEV_PFLASH, not applied on NorthStar */
ASSERT(0);
}
/* Try embedded NVRAM at 4 KB and 1 KB as last resorts */
header = (struct nvram_header *)(flash_base + 4 KB);
if (header->magic == NVRAM_MAGIC)
if (nvram_calc_crc(header) == (uint8)header->crc_ver_init) {
goto found;
}
header = (struct nvram_header *)(flash_base + 1 KB);
if (header->magic == NVRAM_MAGIC)
if (nvram_calc_crc(header) == (uint8)header->crc_ver_init) {
goto found;
}
return -1;
found:
src = (u32 *)header;
dst = (u32 *)nvram_buf;
for (i = 0; i < sizeof(struct nvram_header); i += 4)
*dst++ = *src++;
for (; i < header->len && i < MAX_NVRAM_SPACE; i += 4)
*dst++ = ltoh32(*src++);
nvram_space_str = early_nvram_get("nvram_space");
if (nvram_space_str)
nvram_space = bcm_strtoul(nvram_space_str, NULL, 0);
return 0;
}
static void
flash_init(void)
{
newflash_probe_t fprobe;
int bootdev;
uint32 bootsz, *bisz;
cfe_driver_t *drv = NULL;
int j = 0;
fl_size_t max_image_size = 0;
int rom_envram_size;
#if defined(DUAL_IMAGE) || defined(FAILSAFE_UPGRADE)
int need_commit = 0;
#endif
#ifdef CFG_NFLASH
hndnand_t *nfl_info = NULL;
#endif
#if CFG_SFLASH
hndsflash_t *sfl_info = NULL;
#endif
memset(&fprobe, 0, sizeof(fprobe));
bootdev = soc_boot_dev((void *)sih);
if(!nvram_match("nospare", "0"))
nospare = 1;
else
nospare = 0;
#ifdef CFG_NFLASH
if (bootdev == SOC_BOOTDEV_NANDFLASH) {
nfl_info = hndnand_init(sih);
if (!nfl_info)
return;
fprobe.flash_phys = nfl_info->phybase;
drv = &nflashdrv;
} else
#endif /* CFG_NFLASH */
#if CFG_SFLASH
if (bootdev == SOC_BOOTDEV_SFLASH) {
sfl_info = hndsflash_init(sih);
if (!sfl_info)
return;
fprobe.flash_phys = sfl_info->phybase;
drv = &sflashdrv;
}
else
#endif
#if CFG_FLASH
{
/* This might be wrong, but set pflash
* as default if nothing configured
*/
chipcregs_t *cc;
if ((cc = (chipcregs_t *)si_setcoreidx(sih, SI_CC_IDX)) == NULL)
return;
fprobe.flash_phys = SI_FLASH2;
fprobe.flash_flags = FLASH_FLG_BUS16 | FLASH_FLG_DEV16;
if (!(R_REG(NULL, &cc->flash_config) & CC_CFG_DS))
fprobe.flash_flags = FLASH_FLG_BUS8 | FLASH_FLG_DEV16;
drv = &newflashdrv;
}
#endif /* CFG_FLASH */
ASSERT(drv);
/* Default is 256K boot partition */
bootsz = 256 * 1024;
/* Do we have a self-describing binary image? */
bisz = (uint32 *)UNCADDR(fprobe.flash_phys + BISZ_OFFSET);
if (bisz[BISZ_MAGIC_IDX] == BISZ_MAGIC) {
int isz = bisz[BISZ_DATAEND_IDX] - bisz[BISZ_TXTST_IDX];
if (isz > (1024 * 1024))
bootsz = 2048 * 1024;
else if (isz > (512 * 1024))
bootsz = 1024 * 1024;
else if (isz > (256 * 1024))
bootsz = 512 * 1024;
else if (isz <= (128 * 1024))
bootsz = 128 * 1024;
}
printf("Boot partition size = %d(0x%x)\n", bootsz, bootsz);
#if CFG_NFLASH
if (nfl_info) {
fl_size_t flash_size = 0;
if (bootsz > nfl_info->blocksize) {
/* Prepare double space in case of bad blocks */
bootsz = (bootsz << 1);
} else {
/* CFE occupies at least one block */
bootsz = nfl_info->blocksize;
}
/* Because sometimes we want to program the entire device */
fprobe.flash_nparts = 0;
cfe_add_device(drv, 0, 0, &fprobe);
#if defined(FAILSAFE_UPGRADE) || defined(DUAL_IMAGE)
max_image_size = calculate_max_image_size("nflash0", nfl_boot_size(nfl_info), 0,
&need_commit, nfl_boot_os_size(nfl_info));
#endif
/* Because sometimes we want to program the entire device */
/* Because CFE can only boot from the beginning of a partition */
j = 0;
fprobe.flash_parts[j].fp_size = bootsz;
fprobe.flash_parts[j++].fp_name = "boot";
fprobe.flash_parts[j].fp_size = (nfl_boot_size(nfl_info) - bootsz);
fprobe.flash_parts[j++].fp_name = "nvram";
fprobe.flash_parts[j].fp_size = sizeof(struct trx_header);
fprobe.flash_parts[j++].fp_name = "trx";
fprobe.flash_parts[j].fp_size = max_image_size ?
max_image_size - sizeof(struct trx_header) : 0;
fprobe.flash_parts[j++].fp_name = "os";
#if defined(FAILSAFE_UPGRADE) || defined(DUAL_IMAGE)
if (max_image_size) {
fprobe.flash_parts[j].fp_size = sizeof(struct trx_header);
fprobe.flash_parts[j++].fp_name = "trx2";
fprobe.flash_parts[j].fp_size = max_image_size;
fprobe.flash_parts[j++].fp_name = "os2";
}
#endif
fprobe.flash_nparts = j;
cfe_add_device(drv, 0, 0, &fprobe);
/* Because CFE can only flash an entire partition */
j = 0;
fprobe.flash_parts[j].fp_size = bootsz;
fprobe.flash_parts[j++].fp_name = "boot";
fprobe.flash_parts[j].fp_size = (nfl_boot_size(nfl_info) - bootsz);
fprobe.flash_parts[j++].fp_name = "nvram";
fprobe.flash_parts[j].fp_size = max_image_size;
fprobe.flash_parts[j++].fp_name = "trx";
#if defined(FAILSAFE_UPGRADE) || defined(DUAL_IMAGE)
if (max_image_size) {
fprobe.flash_parts[j].fp_size =
nfl_boot_os_size(nfl_info) - nfl_boot_size(nfl_info)
- max_image_size;
fprobe.flash_parts[j++].fp_name = "trx2";
}
#endif
flash_size = get_flash_size("nflash0") - nfl_boot_os_size(nfl_info);
#ifdef DUAL_TRX
fprobe.flash_parts[j].fp_size = NFL_BOOT_OS_SIZE;
fprobe.flash_parts[j++].fp_name = "trx2";
flash_size -= NFL_BOOT_OS_SIZE;
#endif
if (flash_size > 0) {
fprobe.flash_parts[j].fp_size = flash_size;
fprobe.flash_parts[j++].fp_name = "brcmnand";
}
fprobe.flash_nparts = j;
cfe_add_device(drv, 0, 0, &fprobe);
/* Change nvram device name for NAND boot */
flashdrv_nvram = "nflash0.nvram";
} else
#endif /* CFG_NFLASH */
{
/* Because sometimes we want to program the entire device */
fprobe.flash_nparts = 0;
cfe_add_device(drv, 0, 0, &fprobe);
#ifdef CFG_ROMBOOT
if (board_bootdev_rom(sih)) {
rom_envram_size = ROM_ENVRAM_SPACE;
}
else
#endif
{
rom_envram_size = 0;
}
#if defined(FAILSAFE_UPGRADE) || defined(DUAL_IMAGE)
/* If the kernel is not in nand flash, split up the sflash */
if (soc_knl_dev((void *)sih) != SOC_KNLDEV_NANDFLASH) {
max_image_size = calculate_max_image_size("flash0",
bootsz, MAX_NVRAM_SPACE+rom_envram_size, &need_commit, 0);
}
#endif
/* Because CFE can only boot from the beginning of a partition */
j = 0;
fprobe.flash_parts[j].fp_size = bootsz;
fprobe.flash_parts[j++].fp_name = "boot";
fprobe.flash_parts[j].fp_size = sizeof(struct trx_header);
fprobe.flash_parts[j++].fp_name = "trx";
fprobe.flash_parts[j].fp_size = max_image_size ?
max_image_size - sizeof(struct trx_header) : 0;
fprobe.flash_parts[j++].fp_name = "os";
#if defined(FAILSAFE_UPGRADE) || defined(DUAL_IMAGE)
if (max_image_size) {
fprobe.flash_parts[j].fp_size = sizeof(struct trx_header);
fprobe.flash_parts[j++].fp_name = "trx2";
fprobe.flash_parts[j].fp_size = 0;
fprobe.flash_parts[j++].fp_name = "os2";
}
#endif
#ifdef CFG_ROMBOOT
if (rom_envram_size) {
fprobe.flash_parts[j].fp_size = rom_envram_size;
fprobe.flash_parts[j++].fp_name = "envram";
}
#endif
#ifdef BCM_DEVINFO
fprobe.flash_parts[j].fp_size = 0x80000;
fprobe.flash_parts[j++].fp_name = "fs_rw";
fprobe.flash_parts[j].fp_size = 0x10000;
fprobe.flash_parts[j++].fp_name = "devinfo";
#endif /* BCM_DEVINFO */
fprobe.flash_parts[j].fp_size = MAX_NVRAM_SPACE;
fprobe.flash_parts[j++].fp_name = "nvram";
fprobe.flash_nparts = j;
cfe_add_device(drv, 0, 0, &fprobe);
/* Because CFE can only flash an entire partition */
j = 0;
fprobe.flash_parts[j].fp_size = bootsz;
fprobe.flash_parts[j++].fp_name = "boot";
fprobe.flash_parts[j].fp_size = max_image_size;
fprobe.flash_parts[j++].fp_name = "trx";
#if defined(FAILSAFE_UPGRADE) || defined(DUAL_IMAGE)
if (max_image_size) {
fprobe.flash_parts[j].fp_size = 0;
fprobe.flash_parts[j++].fp_name = "trx2";
}
#endif
#ifdef CFG_ROMBOOT
if (rom_envram_size) {
fprobe.flash_parts[j].fp_size = rom_envram_size;
fprobe.flash_parts[j++].fp_name = "envram";
}
#endif
#ifdef BCM_DEVINFO
fprobe.flash_parts[j].fp_size = 0x80000;
fprobe.flash_parts[j++].fp_name = "fs_rw";
fprobe.flash_parts[j].fp_size = 0x10000;
fprobe.flash_parts[j++].fp_name = "devinfo";
#endif /* BCM_DEVINFO */
fprobe.flash_parts[j].fp_size = MAX_NVRAM_SPACE;
fprobe.flash_parts[j++].fp_name = "nvram";
fprobe.flash_nparts = j;
cfe_add_device(drv, 0, 0, &fprobe);
}
#if (CFG_FLASH || CFG_SFLASH)
flash_memory_size_config(sih, (void *)&fprobe);
#endif /* (CFG_FLASH || CFG_SFLASH) */
#ifdef CFG_NFLASH
/* If boot from sflash, try to init partition for JFFS2 anyway */
if (nfl_info == NULL)
flash_nflash_init();
#endif /* CFG_NFLASH */
#if defined(FAILSAFE_UPGRADE) || defined(DUAL_IMAGE)
if (need_commit)
nvram_commit();
#endif
}
static struct nvram_header *
BCMINITFN(find_nvram)(si_t *sih, bool embonly, bool *isemb)
{
struct nvram_header *nvh;
uint32 off, lim = SI_FLASH2_SZ;
uint32 flbase = SI_FLASH2;
int bootdev;
#ifdef NFLASH_SUPPORT
hndnand_t *nfl_info = NULL;
#endif
#ifdef _CFE_
hndsflash_t *sfl_info = NULL;
#endif
bootdev = soc_boot_dev((void *)sih);
#ifdef NFLASH_SUPPORT
if (bootdev == SOC_BOOTDEV_NANDFLASH) {
/* Init nand anyway */
nfl_info = hndnand_init(sih);
if (nfl_info)
flbase = nfl_info->phybase;
}
else
#endif /* NFLASH_SUPPORT */
if (bootdev == SOC_BOOTDEV_SFLASH) {
#ifdef _CFE_
/* Init nand anyway */
sfl_info = hndsflash_init(sih);
if (sfl_info) {
flbase = sfl_info->phybase;
lim = sfl_info->size;
}
#else
if (sih->ccrev == 42)
flbase = SI_NS_NORFLASH;
#endif
}
if (!embonly) {
*isemb = FALSE;
#ifdef NFLASH_SUPPORT
if (nfl_info) {
uint32 blocksize;
blocksize = nfl_info->blocksize;
off = blocksize;
for (; off < nfl_boot_size(nfl_info); off += blocksize) {
if (hndnand_checkbadb(nfl_info, off) != 0)
continue;
nvh = (struct nvram_header *)OSL_UNCACHED(flbase + off);
if (nvh->magic != NVRAM_MAGIC)
continue;
/* Read into the nand_nvram */
if ((nvh = nand_find_nvram(nfl_info, off)) == NULL)
continue;
if (nvram_calc_crc(nvh) == (uint8)nvh->crc_ver_init)
return nvh;
}
}
else
#endif /* NFLASH_SUPPORT */
{
off = FLASH_MIN;
while (off <= lim) {
nvh = (struct nvram_header *)
OSL_UNCACHED(flbase + off - MAX_NVRAM_SPACE);
if (nvh->magic == NVRAM_MAGIC) {
if (nvram_calc_crc(nvh) == (uint8) nvh->crc_ver_init) {
return (nvh);
}
}
off <<= 1;
}
}
#ifdef BCMDBG
printf("find_nvram: nvram not found, trying embedded nvram next\n");
#endif /* BCMDBG */
}
/*
* Provide feedback to user when nvram corruption detected.
* Must be non-BCMDBG for customer release.
*/
printf("Corrupt NVRAM found, trying embedded NVRAM next.\n");
/* Now check embedded nvram */
*isemb = TRUE;
nvh = (struct nvram_header *)OSL_UNCACHED(flbase + (4 * 1024));
if (nvh->magic == NVRAM_MAGIC)
return (nvh);
nvh = (struct nvram_header *)OSL_UNCACHED(flbase + 1024);
if (nvh->magic == NVRAM_MAGIC)
return (nvh);
#ifdef _CFE_
nvh = (struct nvram_header *)embedded_nvram;
if (nvh->magic == NVRAM_MAGIC)
return (nvh);
#endif
printf("find_nvram: no nvram found\n");
return (NULL);
}
