This change will convert nandc to chip in Read/Write helper, this change is needed because if we wnated to access number of steps in Read/Write helper then we need to get the chip->ecc.steps, currentlly its not possible.After this change we can directly acces chip->ecc.steps in Read/Write helper.
Signed-off-by: Md Sadre Alam <mda...@codeaurora.org> --- drivers/mtd/nand/raw/qcom_nandc.c | 52 +++++++++++++++++++++++---------------- 1 file changed, 31 insertions(+), 21 deletions(-) diff --git a/drivers/mtd/nand/raw/qcom_nandc.c b/drivers/mtd/nand/raw/qcom_nandc.c index 667e4bf..ae8870ec 100644 --- a/drivers/mtd/nand/raw/qcom_nandc.c +++ b/drivers/mtd/nand/raw/qcom_nandc.c @@ -1079,8 +1079,10 @@ static int write_data_dma(struct qcom_nand_controller *nandc, int reg_off, * Helper to prepare DMA descriptors for configuring registers * before reading a NAND page. */ -static void config_nand_page_read(struct qcom_nand_controller *nandc) +static void config_nand_page_read(struct nand_chip *chip) { + struct qcom_nand_controller *nandc = get_qcom_nand_controller(chip); + write_reg_dma(nandc, NAND_ADDR0, 2, 0); write_reg_dma(nandc, NAND_DEV0_CFG0, 3, 0); write_reg_dma(nandc, NAND_EBI2_ECC_BUF_CFG, 1, 0); @@ -1094,8 +1096,10 @@ static void config_nand_page_read(struct qcom_nand_controller *nandc) * before reading each codeword in NAND page. */ static void -config_nand_cw_read(struct qcom_nand_controller *nandc, bool use_ecc) +config_nand_cw_read(struct nand_chip *chip, bool use_ecc) { + struct qcom_nand_controller *nandc = get_qcom_nand_controller(chip); + if (nandc->props->is_bam) write_reg_dma(nandc, NAND_READ_LOCATION_0, 4, NAND_BAM_NEXT_SGL); @@ -1117,19 +1121,23 @@ config_nand_cw_read(struct qcom_nand_controller *nandc, bool use_ecc) * single codeword in page */ static void -config_nand_single_cw_page_read(struct qcom_nand_controller *nandc, +config_nand_single_cw_page_read(struct nand_chip *chip, bool use_ecc) { - config_nand_page_read(nandc); - config_nand_cw_read(nandc, use_ecc); + struct qcom_nand_controller *nandc = get_qcom_nand_controller(chip); + + config_nand_page_read(chip); + config_nand_cw_read(chip, use_ecc); } /* * Helper to prepare DMA descriptors used to configure registers needed for * before writing a NAND page. */ -static void config_nand_page_write(struct qcom_nand_controller *nandc) +static void config_nand_page_write(struct nand_chip *chip) { + struct qcom_nand_controller *nandc = get_qcom_nand_controller(chip); + write_reg_dma(nandc, NAND_ADDR0, 2, 0); write_reg_dma(nandc, NAND_DEV0_CFG0, 3, 0); write_reg_dma(nandc, NAND_EBI2_ECC_BUF_CFG, 1, @@ -1140,8 +1148,10 @@ static void config_nand_page_write(struct qcom_nand_controller *nandc) * Helper to prepare DMA descriptors for configuring registers * before writing each codeword in NAND page. */ -static void config_nand_cw_write(struct qcom_nand_controller *nandc) +static void config_nand_cw_write(struct nand_chip *chip) { + struct qcom_nand_controller *nandc = get_qcom_nand_controller(chip); + write_reg_dma(nandc, NAND_FLASH_CMD, 1, NAND_BAM_NEXT_SGL); write_reg_dma(nandc, NAND_EXEC_CMD, 1, NAND_BAM_NEXT_SGL); @@ -1215,7 +1225,7 @@ static int nandc_param(struct qcom_nand_host *host) nandc->buf_count = 512; memset(nandc->data_buffer, 0xff, nandc->buf_count); - config_nand_single_cw_page_read(nandc, false); + config_nand_single_cw_page_read(chip, false); read_data_dma(nandc, FLASH_BUF_ACC, nandc->data_buffer, nandc->buf_count, 0); @@ -1617,7 +1627,7 @@ qcom_nandc_read_cw_raw(struct mtd_info *mtd, struct nand_chip *chip, clear_bam_transaction(nandc); set_address(host, host->cw_size * cw, page); update_rw_regs(host, 1, true); - config_nand_page_read(nandc); + config_nand_page_read(chip); data_size1 = mtd->writesize - host->cw_size * (ecc->steps - 1); oob_size1 = host->bbm_size; @@ -1645,7 +1655,7 @@ qcom_nandc_read_cw_raw(struct mtd_info *mtd, struct nand_chip *chip, nandc_set_read_loc(nandc, 3, read_loc, oob_size2, 1); } - config_nand_cw_read(nandc, false); + config_nand_cw_read(chip, false); read_data_dma(nandc, reg_off, data_buf, data_size1, 0); reg_off += data_size1; @@ -1856,7 +1866,7 @@ static int read_page_ecc(struct qcom_nand_host *host, u8 *data_buf, u8 *data_buf_start = data_buf, *oob_buf_start = oob_buf; int i, ret; - config_nand_page_read(nandc); + config_nand_page_read(chip); /* queue cmd descs for each codeword */ for (i = 0; i < ecc->steps; i++) { @@ -1884,7 +1894,7 @@ static int read_page_ecc(struct qcom_nand_host *host, u8 *data_buf, } } - config_nand_cw_read(nandc, true); + config_nand_cw_read(chip, true); if (data_buf) read_data_dma(nandc, FLASH_BUF_ACC, data_buf, @@ -1946,7 +1956,7 @@ static int copy_last_cw(struct qcom_nand_host *host, int page) set_address(host, host->cw_size * (ecc->steps - 1), page); update_rw_regs(host, 1, true); - config_nand_single_cw_page_read(nandc, host->use_ecc); + config_nand_single_cw_page_read(chip, host->use_ecc); read_data_dma(nandc, FLASH_BUF_ACC, nandc->data_buffer, size, 0); @@ -2036,7 +2046,7 @@ static int qcom_nandc_write_page(struct nand_chip *chip, const uint8_t *buf, host->use_ecc = true; update_rw_regs(host, ecc->steps, false); - config_nand_page_write(nandc); + config_nand_page_write(chip); for (i = 0; i < ecc->steps; i++) { int data_size, oob_size; @@ -2068,7 +2078,7 @@ static int qcom_nandc_write_page(struct nand_chip *chip, const uint8_t *buf, oob_buf, oob_size, 0); } - config_nand_cw_write(nandc); + config_nand_cw_write(chip); data_buf += data_size; oob_buf += oob_size; @@ -2107,7 +2117,7 @@ static int qcom_nandc_write_page_raw(struct nand_chip *chip, host->use_ecc = false; update_rw_regs(host, ecc->steps, false); - config_nand_page_write(nandc); + config_nand_page_write(chip); for (i = 0; i < ecc->steps; i++) { int data_size1, data_size2, oob_size1, oob_size2; @@ -2144,7 +2154,7 @@ static int qcom_nandc_write_page_raw(struct nand_chip *chip, write_data_dma(nandc, reg_off, oob_buf, oob_size2, 0); oob_buf += oob_size2; - config_nand_cw_write(nandc); + config_nand_cw_write(chip); } ret = submit_descs(nandc); @@ -2191,10 +2201,10 @@ static int qcom_nandc_write_oob(struct nand_chip *chip, int page) set_address(host, host->cw_size * (ecc->steps - 1), page); update_rw_regs(host, 1, false); - config_nand_page_write(nandc); + config_nand_page_write(chip); write_data_dma(nandc, FLASH_BUF_ACC, nandc->data_buffer, data_size + oob_size, 0); - config_nand_cw_write(nandc); + config_nand_cw_write(chip); ret = submit_descs(nandc); @@ -2270,10 +2280,10 @@ static int qcom_nandc_block_markbad(struct nand_chip *chip, loff_t ofs) set_address(host, host->cw_size * (ecc->steps - 1), page); update_rw_regs(host, 1, false); - config_nand_page_write(nandc); + config_nand_page_write(chip); write_data_dma(nandc, FLASH_BUF_ACC, nandc->data_buffer, host->cw_size, 0); - config_nand_cw_write(nandc); + config_nand_cw_write(chip); ret = submit_descs(nandc); -- 2.7.4