diff options
| author | Stefan Roese <sr@denx.de> | 2006-10-24 18:06:48 +0200 |
|---|---|---|
| committer | Stefan Roese <sr@denx.de> | 2006-10-24 18:13:43 +0200 |
| commit | 7ade0c634a979c32fa91a74e8f5775f24651fbe6 (patch) | |
| tree | 9b149c5693a44049daf19fad44a14fee34a44536 /cpu/ppc4xx/ndfc.c | |
| parent | 8ae3b713b2286e0c3213b7802062e4c1599010de (diff) | |
Fix bug in PPC440 NAND driver cpu/ppc4xx/ndfc.c
Patch by Stefan Roese, 24 Oct 2006
Diffstat (limited to 'cpu/ppc4xx/ndfc.c')
| -rw-r--r-- | cpu/ppc4xx/ndfc.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/cpu/ppc4xx/ndfc.c b/cpu/ppc4xx/ndfc.c index 2c44111da6..352173128d 100644 --- a/cpu/ppc4xx/ndfc.c +++ b/cpu/ppc4xx/ndfc.c @@ -144,16 +144,21 @@ static int ndfc_verify_buf(struct mtd_info *mtdinfo, const uint8_t *buf, int len void board_nand_select_device(struct nand_chip *nand, int chip) { + /* + * Don't use "chip" to address the NAND device, + * generate the cs from the address where it is encoded. + */ + int cs = (ulong)nand->IO_ADDR_W & 0x00000003; ulong base = (ulong)nand->IO_ADDR_W & 0xfffffffc; /* Set NandFlash Core Configuration Register */ /* 1col x 2 rows */ - out32(base + NDFC_CCR, 0x00000000 | (chip << 24)); + out32(base + NDFC_CCR, 0x00000000 | (cs << 24)); } void board_nand_init(struct nand_chip *nand) { - int chip = (ulong)nand->IO_ADDR_W & 0x00000003; + int cs = (ulong)nand->IO_ADDR_W & 0x00000003; ulong base = (ulong)nand->IO_ADDR_W & 0xfffffffc; nand->eccmode = NAND_ECC_SOFT; @@ -181,8 +186,8 @@ void board_nand_init(struct nand_chip *nand) /* * Select required NAND chip in NDFC */ - board_nand_select_device(nand, chip); - out32(base + NDFC_BCFG0 + (chip << 2), 0x80002222); + board_nand_select_device(nand, cs); + out32(base + NDFC_BCFG0 + (cs << 2), 0x80002222); } #endif |