[PATCH v2 15/24] mtd: rawnand: sunxi: move NFC_RANDOM_EN register offset in SoC caps

[Richard Genoud]

NFC_RANDOM_{EN,DIRECTION} registers offset moved in H616

Let's make it a SoC capability.

NFC_RANDOM_DIRECTION also moved, but it's unused, just remove it.

No functional change.

Signed-off-by: Richard Genoud <richard.genoud at bootlin.com>
---
 drivers/mtd/nand/raw/sunxi_nand.c     | 5 +++--
 drivers/mtd/nand/raw/sunxi_nand.h     | 5 +++--
 drivers/mtd/nand/raw/sunxi_nand_spl.c | 3 ++-
 3 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/drivers/mtd/nand/raw/sunxi_nand.c b/drivers/mtd/nand/raw/sunxi_nand.c
index c032cabb4dc9..c35dff75de06 100644
--- a/drivers/mtd/nand/raw/sunxi_nand.c
+++ b/drivers/mtd/nand/raw/sunxi_nand.c
@@ -608,7 +608,7 @@ static void sunxi_nfc_randomizer_enable(struct mtd_info *mtd)
 	if (!(nand->options & NAND_NEED_SCRAMBLING))
 		return;
 
-	writel(readl(nfc->regs + NFC_REG_ECC_CTL) | NFC_RANDOM_EN,
+	writel(readl(nfc->regs + NFC_REG_ECC_CTL) | NFC_RANDOM_EN(nfc),
 	       nfc->regs + NFC_REG_ECC_CTL);
 }
 
@@ -620,7 +620,7 @@ static void sunxi_nfc_randomizer_disable(struct mtd_info *mtd)
 	if (!(nand->options & NAND_NEED_SCRAMBLING))
 		return;
 
-	writel(readl(nfc->regs + NFC_REG_ECC_CTL) & ~NFC_RANDOM_EN,
+	writel(readl(nfc->regs + NFC_REG_ECC_CTL) & ~NFC_RANDOM_EN(nfc),
 	       nfc->regs + NFC_REG_ECC_CTL);
 }
 
@@ -1730,6 +1730,7 @@ static const struct sunxi_nfc_caps sunxi_nfc_a10_caps = {
 	.reg_pat_id = NFC_REG_A10_PAT_ID,
 	.pat_found_mask = GENMASK(31, 16),
 	.ecc_mode_mask = GENMASK(15, 12),
+	.random_en_mask = BIT(9),
 };
 
 static const struct udevice_id sunxi_nand_ids[] = {
diff --git a/drivers/mtd/nand/raw/sunxi_nand.h b/drivers/mtd/nand/raw/sunxi_nand.h
index e18feb77c93c..2cbfc5c9c62a 100644
--- a/drivers/mtd/nand/raw/sunxi_nand.h
+++ b/drivers/mtd/nand/raw/sunxi_nand.h
@@ -141,8 +141,7 @@
 #define NFC_ECC_PIPELINE	BIT(3)
 #define NFC_ECC_EXCEPTION	BIT(4)
 #define NFC_ECC_BLOCK_512	BIT(5)
-#define NFC_RANDOM_EN		BIT(9)
-#define NFC_RANDOM_DIRECTION	BIT(10)
+#define NFC_RANDOM_EN(nfc)	((nfc)->caps->random_en_mask)
 #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	(0x7fff << 16)
@@ -178,6 +177,7 @@
  * @reg_pat_found:	Data Pattern Status Register
  * @pat_found_mask:	ECC_PAT_FOUND mask in NFC_REG_PAT_FOUND register
  * @ecc_mode_mask:	ECC_MODE mask in NFC_ECC_CTL register
+ * @random_en_mask:	RANDOM_EN mask in NFC_ECC_CTL register
  */
 struct sunxi_nfc_caps {
 	bool has_ecc_block_512;
@@ -188,6 +188,7 @@ struct sunxi_nfc_caps {
 	unsigned int reg_pat_found;
 	unsigned int pat_found_mask;
 	unsigned int ecc_mode_mask;
+	unsigned int random_en_mask;
 };
 
 #endif
diff --git a/drivers/mtd/nand/raw/sunxi_nand_spl.c b/drivers/mtd/nand/raw/sunxi_nand_spl.c
index c9afc3d9f624..bf8b892b0698 100644
--- a/drivers/mtd/nand/raw/sunxi_nand_spl.c
+++ b/drivers/mtd/nand/raw/sunxi_nand_spl.c
@@ -54,6 +54,7 @@ const uint16_t random_seed[128] = {
 
 __maybe_unused static const struct sunxi_nfc_caps sunxi_nfc_a10_caps = {
 	.has_ecc_block_512 = true,
+	.random_en_mask = BIT(9),
 };
 
 #define DEFAULT_TIMEOUT_US	100000
@@ -235,7 +236,7 @@ static int nand_read_page(const struct nfc_config *conf, u32 offs,
 		/* Clear ECC status and restart ECC engine */
 		writel(0, SUNXI_NFC_BASE + NFC_REG_ECC_ST);
 		writel((rand_seed << 16) | (conf->ecc_strength << 12) |
-		       (conf->randomize ? NFC_RANDOM_EN : 0) |
+		       (conf->randomize ? NFC_RANDOM_EN(conf) : 0) |
 		       ecc512_bit |
 		       NFC_ECC_EN | NFC_ECC_EXCEPTION,
 		       SUNXI_NFC_BASE + NFC_REG_ECC_CTL);
-- 
2.47.3