[PATCH v2 07/15] mtd: rawnand: sunxi: introduce ecc_mode_mask in sunxi_nfc_caps
From: Richard Genoud <richard.genoud@bootlin.com>
Date: 2025-10-13 15:27:44
Also in:
linux-devicetree, linux-sunxi, lkml
Subsystem:
memory technology devices (mtd), nand flash subsystem, the rest · Maintainers:
Miquel Raynal, Richard Weinberger, Vignesh Raghavendra, Linus Torvalds
The H6/H616 ECC_MODE field is not at the same offset, and has not the same size. So move the mask into sunxi_nfc_caps. No functional change. Signed-off-by: Richard Genoud <richard.genoud@bootlin.com> --- drivers/mtd/nand/raw/sunxi_nand.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-)
diff --git a/drivers/mtd/nand/raw/sunxi_nand.c b/drivers/mtd/nand/raw/sunxi_nand.c
index 70c940840dda..4118307cac15 100644
--- a/drivers/mtd/nand/raw/sunxi_nand.c
+++ b/drivers/mtd/nand/raw/sunxi_nand.c@@ -29,8 +29,9 @@ #include <linux/iopoll.h> #include <linux/reset.h> -/* non compile-time field get */ +/* non compile-time field get/prep */ #define field_get(_mask, _reg) (((_reg) & (_mask)) >> (ffs(_mask) - 1)) +#define field_prep(_mask, _val) (((_val) << (ffs(_mask) - 1)) & (_mask)) #define NFC_REG_CTL 0x0000 #define NFC_REG_ST 0x0004
@@ -145,8 +146,8 @@ #define NFC_ECC_BLOCK_512 BIT(5) #define NFC_RANDOM_EN BIT(9) #define NFC_RANDOM_DIRECTION BIT(10) -#define NFC_ECC_MODE_MSK GENMASK(15, 12) -#define NFC_ECC_MODE(x) ((x) << 12) +#define NFC_ECC_MODE_MSK(nfc) (nfc->caps->ecc_mode_mask) +#define NFC_ECC_MODE(nfc, x) field_prep(NFC_ECC_MODE_MSK(nfc), (x)) #define NFC_RANDOM_SEED_MSK GENMASK(30, 16) #define NFC_RANDOM_SEED(x) ((x) << 16)
@@ -227,6 +228,7 @@ static inline struct sunxi_nand_chip *to_sunxi_nand(struct nand_chip *nand) * @reg_ecc_err_cnt: ECC error counter register * @reg_user_data: User data register * @reg_pat_found: Data Pattern Status Register + * @ecc_mode_mask: ECC_MODE mask in NFC_ECC_CTL register * @pat_found_mask: ECC_PAT_FOUND mask in NFC_REG_PAT_FOUND register * @dma_maxburst: DMA maxburst * @ecc_strengths: Available ECC strengths array
@@ -239,6 +241,7 @@ struct sunxi_nfc_caps { unsigned int reg_ecc_err_cnt; unsigned int reg_user_data; unsigned int reg_pat_found; + unsigned int ecc_mode_mask; unsigned int pat_found_mask; unsigned int dma_maxburst; const u8 *ecc_strengths;
@@ -1747,7 +1750,7 @@ static int sunxi_nand_hw_ecc_ctrl_init(struct nand_chip *nand, ecc->read_oob_raw = nand_read_oob_std; ecc->write_oob_raw = nand_write_oob_std; - sunxi_nand->ecc.ecc_ctl = NFC_ECC_MODE(i) | NFC_ECC_EXCEPTION | + sunxi_nand->ecc.ecc_ctl = NFC_ECC_MODE(nfc, i) | NFC_ECC_EXCEPTION | NFC_ECC_PIPELINE | NFC_ECC_EN; if (ecc->size == 512) {
@@ -2217,6 +2220,7 @@ static const struct sunxi_nfc_caps sunxi_nfc_a10_caps = { .reg_ecc_err_cnt = NFC_REG_A10_ECC_ERR_CNT, .reg_user_data = NFC_REG_A10_USER_DATA, .reg_pat_found = NFC_REG_ECC_ST, + .ecc_mode_mask = GENMASK(15, 12), .pat_found_mask = GENMASK(31, 16), .dma_maxburst = 4, .ecc_strengths = sunxi_ecc_strengths_a10,
@@ -2230,6 +2234,7 @@ static const struct sunxi_nfc_caps sunxi_nfc_a23_caps = { .reg_ecc_err_cnt = NFC_REG_A10_ECC_ERR_CNT, .reg_user_data = NFC_REG_A10_USER_DATA, .reg_pat_found = NFC_REG_ECC_ST, + .ecc_mode_mask = GENMASK(15, 12), .pat_found_mask = GENMASK(31, 16), .dma_maxburst = 8, .ecc_strengths = sunxi_ecc_strengths_a10,