/*
* Set how many bytes should be skipped before writing data in OOB.
+ * If a non-zero value has already been configured, update it in HW.
* If a non-zero value has already been set (by firmware or something),
* just use it. Otherwise, set the driver's default.
*/
- denali->oob_skip_bytes = ioread32(denali->reg + SPARE_AREA_SKIP_BYTES);
- if (!denali->oob_skip_bytes) {
- denali->oob_skip_bytes = DENALI_DEFAULT_OOB_SKIP_BYTES;
+ if (denali->oob_skip_bytes) {
iowrite32(denali->oob_skip_bytes,
denali->reg + SPARE_AREA_SKIP_BYTES);
+ } else {
+ denali->oob_skip_bytes =
+ ioread32(denali->reg + SPARE_AREA_SKIP_BYTES);
+ if (!denali->oob_skip_bytes) {
+ denali->oob_skip_bytes = DENALI_DEFAULT_OOB_SKIP_BYTES;
+ iowrite32(denali->oob_skip_bytes,
+ denali->reg + SPARE_AREA_SKIP_BYTES);
+ }
}
iowrite32(0, denali->reg + TRANSFER_SPARE_REG);
struct denali_dt_data {
unsigned int revision;
unsigned int caps;
+ unsigned int oob_skip_bytes;
const struct nand_ecc_caps *ecc_caps;
};
512, 8, 15);
static const struct denali_dt_data denali_socfpga_data = {
.caps = DENALI_CAP_HW_ECC_FIXUP,
+ .oob_skip_bytes = 2,
.ecc_caps = &denali_socfpga_ecc_caps,
};
static const struct denali_dt_data denali_uniphier_v5a_data = {
.caps = DENALI_CAP_HW_ECC_FIXUP |
DENALI_CAP_DMA_64BIT,
+ .oob_skip_bytes = 8,
.ecc_caps = &denali_uniphier_v5a_ecc_caps,
};
.revision = 0x0501,
.caps = DENALI_CAP_HW_ECC_FIXUP |
DENALI_CAP_DMA_64BIT,
+ .oob_skip_bytes = 8,
.ecc_caps = &denali_uniphier_v5b_ecc_caps,
};
denali->revision = data->revision;
denali->caps = data->caps;
+ denali->oob_skip_bytes = data->oob_skip_bytes;
denali->ecc_caps = data->ecc_caps;
denali->dev = dev;