diff options
Diffstat (limited to 'drivers/mtd/nand/gpmi-nand/gpmi-nand.c')
| -rw-r--r-- | drivers/mtd/nand/gpmi-nand/gpmi-nand.c | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c index 40470f231d36..f25b7c27b101 100644 --- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c +++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c @@ -41,7 +41,30 @@ static struct nand_ecclayout gpmi_hw_ecclayout = { .eccpos = { 0, }, .oobfree = { {.offset = 0, .length = 0} } }; +#if 0 +void gpmi_show_regs(struct gpmi_nand_data *this) +{ + struct resources *r = &this->resources; + u32 reg, bch; + int i; + int n; + + n = 0xc0 / 0x10 + 1; + pr_info("-------------- Show GPMI registers ----------\n"); + for (i = 0; i <= n; i++) { + reg = __raw_readl(r->gpmi_regs + i * 0x10); + pr_info("offset 0x%.3x : 0x%.8x\n", i * 0x10, reg); + } + pr_info("-------------- Show GPMI registers end ----------\n"); + pr_info("-------------- Show BCH registers ----------\n"); + for (i = 0; i <= n; i++) { + reg = __raw_readl(r->bch_regs + i * 0x10); + pr_info("offset 0x%.3x : 0x%.8x\n", i * 0x10, reg); + } + pr_info("-------------- Show BCH registers end ----------\n"); +} +#endif static irqreturn_t bch_irq(int irq, void *cookie) { struct gpmi_nand_data *this = cookie; @@ -99,9 +122,14 @@ int common_nfc_set_geometry(struct gpmi_nand_data *this) /* The default for the length of Galois Field. */ geo->gf_len = 13; + if (is_ddr_nand(this) && is_board_support_ddr(this)) + geo->gf_len = 14; /* The default for chunk size. There is no oobsize greater then 512. */ geo->ecc_chunk_size = 512; + if (is_ddr_nand(this) && is_board_support_ddr(this)) + geo->ecc_chunk_size = 1024; + while (geo->ecc_chunk_size < mtd->oobsize) geo->ecc_chunk_size *= 2; /* keep C >= O */ @@ -115,6 +143,10 @@ int common_nfc_set_geometry(struct gpmi_nand_data *this) } geo->page_size = mtd->writesize + mtd->oobsize; + if (is_ddr_nand(this) && is_board_support_ddr(this)) + geo->page_size = mtd->writesize + geo->metadata_size + + (geo->ecc_strength * geo->gf_len * 8 + / geo->ecc_chunk_count); geo->payload_size = mtd->writesize; /* @@ -1414,6 +1446,25 @@ static int __devinit nand_boot_init(struct gpmi_nand_data *this) return 0; } +#if 0 +static void show_nfc_geometry(struct bch_geometry *geo) +{ + pr_info("---------------------------------------\n"); + pr_info(" NFC Geometry (used by BCH)\n"); + pr_info("---------------------------------------\n"); + pr_info("ECC Strength : %u\n", geo->ecc_strength); + pr_info("Page Size in Bytes : %u\n", geo->page_size); + pr_info("Metadata Size in Bytes : %u\n", geo->metadata_size); + pr_info("ECC Chunk Size in Bytes: %u\n", geo->ecc_chunk_size); + pr_info("ECC Chunk Count : %u\n", geo->ecc_chunk_count); + pr_info("Payload Size in Bytes : %u\n", geo->payload_size); + pr_info("Auxiliary Size in Bytes: %u\n", geo->auxiliary_size); + pr_info("Auxiliary Status Offset: %u\n", geo->auxiliary_status_offset); + pr_info("Block Mark Byte Offset : %u\n", geo->block_mark_byte_offset); + pr_info("Block Mark Bit Offset : %u\n", geo->block_mark_bit_offset); +} +#endif + static int __devinit gpmi_set_geometry(struct gpmi_nand_data *this) { int ret; @@ -1447,6 +1498,11 @@ static int gpmi_pre_bbt_scan(struct gpmi_nand_data *this) if (ret) return ret; + /* extra init */ + ret = extra_init(this); + if (ret != 0) + return ret; + /* NAND boot init, depends on the gpmi_set_geometry(). */ return nand_boot_init(this); } |