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| author | Md Sadre Alam <mdalam@codeaurora.org> | 2021-02-24 01:08:58 +0530 |
|---|---|---|
| committer | Miquel Raynal <miquel.raynal@bootlin.com> | 2021-03-11 09:37:29 +0100 |
| commit | b057e498fdaff82092710b0d7c553d3375b2e314 (patch) | |
| tree | 55871c4a914fe5de949d33a9a96b3e33675c2c7d /drivers/mtd | |
| parent | 9a7c39e23d7059ba6ef231d941dd820643bd5ce2 (diff) | |
| download | linux-stable-b057e498fdaff82092710b0d7c553d3375b2e314.tar.gz linux-stable-b057e498fdaff82092710b0d7c553d3375b2e314.tar.bz2 linux-stable-b057e498fdaff82092710b0d7c553d3375b2e314.zip | |
mtd: rawnand: qcom: Add helper to check last code word
Add the qcom_nandc_is_last_cw() helper which checks if
the input cw index is the last one or not.
Signed-off-by: Md Sadre Alam <mdalam@codeaurora.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/1614109141-7531-2-git-send-email-mdalam@codeaurora.org
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/nand/raw/qcom_nandc.c | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/drivers/mtd/nand/raw/qcom_nandc.c b/drivers/mtd/nand/raw/qcom_nandc.c index 41d4ad8ede1a..d5cf68f22dac 100644 --- a/drivers/mtd/nand/raw/qcom_nandc.c +++ b/drivers/mtd/nand/raw/qcom_nandc.c @@ -662,6 +662,12 @@ static void nandc_set_reg(struct nand_chip *chip, int offset, *reg = cpu_to_le32(val); } +/* Helper to check the code word, whether it is last cw or not */ +static bool qcom_nandc_is_last_cw(struct nand_ecc_ctrl *ecc, int cw) +{ + return cw == (ecc->steps - 1); +} + /* helper to configure address register values */ static void set_address(struct qcom_nand_host *host, u16 column, int page) { @@ -1629,7 +1635,7 @@ qcom_nandc_read_cw_raw(struct mtd_info *mtd, struct nand_chip *chip, data_size1 = mtd->writesize - host->cw_size * (ecc->steps - 1); oob_size1 = host->bbm_size; - if (cw == (ecc->steps - 1)) { + if (qcom_nandc_is_last_cw(ecc, cw)) { data_size2 = ecc->size - data_size1 - ((ecc->steps - 1) * 4); oob_size2 = (ecc->steps * 4) + host->ecc_bytes_hw + @@ -1710,7 +1716,7 @@ check_for_erased_page(struct qcom_nand_host *host, u8 *data_buf, } for_each_set_bit(cw, &uncorrectable_cws, ecc->steps) { - if (cw == (ecc->steps - 1)) { + if (qcom_nandc_is_last_cw(ecc, cw)) { data_size = ecc->size - ((ecc->steps - 1) * 4); oob_size = (ecc->steps * 4) + host->ecc_bytes_hw; } else { @@ -1770,7 +1776,7 @@ static int parse_read_errors(struct qcom_nand_host *host, u8 *data_buf, u32 flash, buffer, erased_cw; int data_len, oob_len; - if (i == (ecc->steps - 1)) { + if (qcom_nandc_is_last_cw(ecc, i)) { data_len = ecc->size - ((ecc->steps - 1) << 2); oob_len = ecc->steps << 2; } else { @@ -1869,7 +1875,7 @@ static int read_page_ecc(struct qcom_nand_host *host, u8 *data_buf, for (i = 0; i < ecc->steps; i++) { int data_size, oob_size; - if (i == (ecc->steps - 1)) { + if (qcom_nandc_is_last_cw(ecc, i)) { data_size = ecc->size - ((ecc->steps - 1) << 2); oob_size = (ecc->steps << 2) + host->ecc_bytes_hw + host->spare_bytes; @@ -2048,7 +2054,7 @@ static int qcom_nandc_write_page(struct nand_chip *chip, const uint8_t *buf, for (i = 0; i < ecc->steps; i++) { int data_size, oob_size; - if (i == (ecc->steps - 1)) { + if (qcom_nandc_is_last_cw(ecc, i)) { data_size = ecc->size - ((ecc->steps - 1) << 2); oob_size = (ecc->steps << 2) + host->ecc_bytes_hw + host->spare_bytes; @@ -2068,7 +2074,7 @@ static int qcom_nandc_write_page(struct nand_chip *chip, const uint8_t *buf, * itself. For the last codeword, we skip the bbm positions and * write to the free oob area. */ - if (i == (ecc->steps - 1)) { + if (qcom_nandc_is_last_cw(ecc, i)) { oob_buf += host->bbm_size; write_data_dma(nandc, FLASH_BUF_ACC + data_size, @@ -2123,7 +2129,7 @@ static int qcom_nandc_write_page_raw(struct nand_chip *chip, data_size1 = mtd->writesize - host->cw_size * (ecc->steps - 1); oob_size1 = host->bbm_size; - if (i == (ecc->steps - 1)) { + if (qcom_nandc_is_last_cw(ecc, i)) { data_size2 = ecc->size - data_size1 - ((ecc->steps - 1) << 2); oob_size2 = (ecc->steps << 2) + host->ecc_bytes_hw + |