diff options
| author | Huang Shijie <b32955@freescale.com> | 2010-11-01 15:13:53 +0800 |
|---|---|---|
| committer | Huang Shijie <b32955@freescale.com> | 2010-11-05 10:03:36 +0800 |
| commit | 375d9bf88742207132d54525ea1d9ca0c2fd8327 (patch) | |
| tree | 46a35fd0cb882a720bfe1d381cfa46d13aa81619 /drivers | |
| parent | 917477c24fce29c71f4a9da5e8a04538f3232fb6 (diff) | |
ENGR00133178-7 NAND : set proper ECC parameters for ONFI nand
ONFI nand needs the 24-bit ECC and 1k data chunk.
DMA page size changes to the real used size.
Signed-off-by: Huang Shijie <b32955@freescale.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mtd/nand/gpmi-nfc/gpmi-nfc-hal-common.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-hal-common.c b/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-hal-common.c index b38d653a21fd..1bc1d2e21e09 100644 --- a/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-hal-common.c +++ b/drivers/mtd/nand/gpmi-nfc/gpmi-nfc-hal-common.c @@ -177,6 +177,9 @@ int gpmi_nfc_set_geometry(struct gpmi_nfc_data *this) */ geometry->ecc_chunk_size_in_bytes = 512; + /* Only ONFI nand uses 1k chunk now */ + if (is_onfi_nand(&this->device_info)) + geometry->ecc_chunk_size_in_bytes = 1024; /* Compute the page size based on the physical geometry. */ @@ -218,6 +221,17 @@ int gpmi_nfc_set_geometry(struct gpmi_nfc_data *this) break; } break; + case 8192: + geometry->ecc_strength = 24; + + /* ONFI nand needs GF14, so re-culculate DMA page size */ + if (is_onfi_nand(&this->device_info)) + geometry->page_size_in_bytes = + physical->page_data_size_in_bytes + + geometry->metadata_size_in_bytes + + (geometry->ecc_strength * 14 * 8 / + geometry->ecc_chunk_count); + break; } /* Check if we were able to figure out the ECC strength. */ |