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-rw-r--r--drivers/mtd/cfi_flash.c71
-rw-r--r--drivers/mtd/nand/Makefile4
-rw-r--r--drivers/mtd/nand/fsl_ifc_nand.c4
3 files changed, 64 insertions, 15 deletions
diff --git a/drivers/mtd/cfi_flash.c b/drivers/mtd/cfi_flash.c
index b2dfc5369..60dbb7864 100644
--- a/drivers/mtd/cfi_flash.c
+++ b/drivers/mtd/cfi_flash.c
@@ -1128,7 +1128,7 @@ int flash_erase (flash_info_t * info, int s_first, int s_last)
AMD_CMD_ERASE_START);
flash_unlock_seq (info, sect);
flash_write_cmd (info, sect, 0,
- AMD_CMD_ERASE_SECTOR);
+ info->cmd_erase_sector);
break;
#ifdef CONFIG_FLASH_CFI_LEGACY
case CFI_CMDSET_AMD_LEGACY:
@@ -1247,6 +1247,8 @@ void flash_print_info (flash_info_t * info)
printf(info->chipwidth == FLASH_CFI_16BIT ? "%04X" : "%02X",
info->device_id2);
}
+ if ((info->vendor == CFI_CMDSET_AMD_STANDARD) && (info->legacy_unlock))
+ printf("\n Advanced Sector Protection (PPB) enabled");
printf ("\n Erase timeout: %ld ms, write timeout: %ld ms\n",
info->erase_blk_tout,
info->write_tout);
@@ -1425,13 +1427,18 @@ int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
return flash_write_cfiword (info, wp, cword);
}
+static inline int manufact_match(flash_info_t *info, u32 manu)
+{
+ return info->manufacturer_id == ((manu & FLASH_VENDMASK) >> 16);
+}
+
/*-----------------------------------------------------------------------
*/
#ifdef CONFIG_SYS_FLASH_PROTECTION
static int cfi_protect_bugfix(flash_info_t *info, long sector, int prot)
{
- if (info->manufacturer_id == ((INTEL_MANUFACT & FLASH_VENDMASK) >> 16)
+ if (manufact_match(info, INTEL_MANUFACT)
&& info->device_id == NUMONYX_256MBIT) {
/*
* see errata called
@@ -1488,8 +1495,7 @@ int flash_real_protect (flash_info_t * info, long sector, int prot)
case CFI_CMDSET_AMD_EXTENDED:
case CFI_CMDSET_AMD_STANDARD:
/* U-Boot only checks the first byte */
- if (info->manufacturer_id ==
- ((ATM_MANUFACT & FLASH_VENDMASK) >> 16)) {
+ if (manufact_match(info, ATM_MANUFACT)) {
if (prot) {
flash_unlock_seq (info, 0);
flash_write_cmd (info, 0,
@@ -1507,8 +1513,7 @@ int flash_real_protect (flash_info_t * info, long sector, int prot)
0, ATM_CMD_UNLOCK_SECT);
}
}
- if (info->manufacturer_id ==
- ((AMD_MANUFACT & FLASH_VENDMASK) >> 16)) {
+ if (info->legacy_unlock) {
int flag = disable_interrupts();
int lock_flag;
@@ -1733,18 +1738,15 @@ static void cmdset_amd_read_jedec_ids(flash_info_t *info)
static int cmdset_amd_init(flash_info_t *info, struct cfi_qry *qry)
{
info->cmd_reset = AMD_CMD_RESET;
+ info->cmd_erase_sector = AMD_CMD_ERASE_SECTOR;
cmdset_amd_read_jedec_ids(info);
flash_write_cmd(info, 0, info->cfi_offset, FLASH_CMD_CFI);
#ifdef CONFIG_SYS_FLASH_PROTECTION
- if (info->ext_addr && info->manufacturer_id ==
- ((AMD_MANUFACT & FLASH_VENDMASK) >> 16)) {
- ushort spus;
-
- /* read sector protect/unprotect scheme */
- spus = flash_read_uchar(info, info->ext_addr + 9);
- if (spus == 0x8)
+ if (info->ext_addr) {
+ /* read sector protect/unprotect scheme (at 0x49) */
+ if (flash_read_uchar(info, info->ext_addr + 9) == 0x8)
info->legacy_unlock = 1;
}
#endif
@@ -2003,6 +2005,25 @@ static void flash_fixup_stm(flash_info_t *info, struct cfi_qry *qry)
}
}
+static void flash_fixup_sst(flash_info_t *info, struct cfi_qry *qry)
+{
+ /*
+ * SST, for many recent nor parallel flashes, says they are
+ * CFI-conformant. This is not true, since qry struct.
+ * reports a std. AMD command set (0x0002), while SST allows to
+ * erase two different sector sizes for the same memory.
+ * 64KB sector (SST call it block) needs 0x30 to be erased.
+ * 4KB sector (SST call it sector) needs 0x50 to be erased.
+ * Since CFI query detect the 4KB number of sectors, users expects
+ * a sector granularity of 4KB, and it is here set.
+ */
+ if (info->device_id == 0x5D23 || /* SST39VF3201B */
+ info->device_id == 0x5C23) { /* SST39VF3202B */
+ /* set sector granularity to 4KB */
+ info->cmd_erase_sector=0x50;
+ }
+}
+
/*
* The following code cannot be run from FLASH!
*
@@ -2081,6 +2102,9 @@ ulong flash_get_size (phys_addr_t base, int banknum)
case 0x0020:
flash_fixup_stm(info, &qry);
break;
+ case 0x00bf: /* SST */
+ flash_fixup_sst(info, &qry);
+ break;
}
debug ("manufacturer is %d\n", info->vendor);
@@ -2158,6 +2182,27 @@ ulong flash_get_size (phys_addr_t base, int banknum)
FLASH_OFFSET_PROTECT,
FLASH_STATUS_PROTECT);
break;
+ case CFI_CMDSET_AMD_EXTENDED:
+ case CFI_CMDSET_AMD_STANDARD:
+ if (!info->legacy_unlock) {
+ /* default: not protected */
+ info->protect[sect_cnt] = 0;
+ break;
+ }
+
+ /* Read protection (PPB) from sector */
+ flash_write_cmd(info, 0, 0,
+ info->cmd_reset);
+ flash_unlock_seq(info, 0);
+ flash_write_cmd(info, 0,
+ info->addr_unlock1,
+ FLASH_CMD_READ_ID);
+ info->protect[sect_cnt] =
+ flash_isset(
+ info, sect_cnt,
+ FLASH_OFFSET_PROTECT,
+ FLASH_STATUS_PROTECT);
+ break;
default:
/* default: not protected */
info->protect[sect_cnt] = 0;
diff --git a/drivers/mtd/nand/Makefile b/drivers/mtd/nand/Makefile
index 2c3812c3b..c77c0c4f0 100644
--- a/drivers/mtd/nand/Makefile
+++ b/drivers/mtd/nand/Makefile
@@ -79,6 +79,10 @@ COBJS-$(CONFIG_TEGRA_NAND) += tegra_nand.o
COBJS-$(CONFIG_NAND_OMAP_GPMC) += omap_gpmc.o
COBJS-$(CONFIG_NAND_PLAT) += nand_plat.o
+else # minimal SPL drivers
+
+COBJS-$(CONFIG_NAND_FSL_ELBC) += fsl_elbc_spl.o
+
endif # drivers
endif # nand
diff --git a/drivers/mtd/nand/fsl_ifc_nand.c b/drivers/mtd/nand/fsl_ifc_nand.c
index 0878bece6..b13d8a930 100644
--- a/drivers/mtd/nand/fsl_ifc_nand.c
+++ b/drivers/mtd/nand/fsl_ifc_nand.c
@@ -391,7 +391,7 @@ static void fsl_ifc_cmdfunc(struct mtd_info *mtd, unsigned int command,
timing = IFC_FIR_OP_RBCD;
out_be32(&ifc->ifc_nand.nand_fir0,
- (IFC_FIR_OP_CMD0 << IFC_NAND_FIR0_OP0_SHIFT) |
+ (IFC_FIR_OP_CW0 << IFC_NAND_FIR0_OP0_SHIFT) |
(IFC_FIR_OP_UA << IFC_NAND_FIR0_OP1_SHIFT) |
(timing << IFC_NAND_FIR0_OP2_SHIFT));
out_be32(&ifc->ifc_nand.nand_fcr0,
@@ -758,7 +758,7 @@ static void fsl_ifc_sram_init(void)
/* READID */
out_be32(&ifc->ifc_nand.nand_fir0,
- (IFC_FIR_OP_CMD0 << IFC_NAND_FIR0_OP0_SHIFT) |
+ (IFC_FIR_OP_CW0 << IFC_NAND_FIR0_OP0_SHIFT) |
(IFC_FIR_OP_UA << IFC_NAND_FIR0_OP1_SHIFT) |
(IFC_FIR_OP_RB << IFC_NAND_FIR0_OP2_SHIFT));
out_be32(&ifc->ifc_nand.nand_fcr0,
generated by cgit v1.2.3-70-g09d2 (git 2.51.2) at 2025-11-01 11:30:13 +0000