mtd: rawnand: sunxi: introduce reg_spare_area in sunxi_nfc_caps

The H6/H616 spare area register is not at the same offset as the
A10/A23 one, so move its offset into sunxi_nfc_caps.

No functional change.

Signed-off-by: Richard Genoud <richard.genoud@bootlin.com>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>

Author: richard-bootlin

drivers/mtd/nand/raw/sunxi_nand.c

@@ -54,7 +54,8 @@
 #define NFC_REG_ECC_ERR_CNT(nfc, x)	((nfc->caps->reg_ecc_err_cnt + (x)) & ~0x3)
 #define NFC_REG_A10_USER_DATA	0x0050
 #define NFC_REG_USER_DATA(nfc, x)	(nfc->caps->reg_user_data + ((x) * 4))
-#define NFC_REG_SPARE_AREA	0x00A0
+#define NFC_REG_SPARE_AREA(nfc) (nfc->caps->reg_spare_area)
+#define NFC_REG_A10_SPARE_AREA	0x00A0
 #define NFC_REG_PAT_ID(nfc) (nfc->caps->reg_pat_id)
 #define NFC_REG_A10_PAT_ID	0x00A4
 #define NFC_REG_MDMA_ADDR	0x00C0
@@ -239,6 +240,7 @@ static inline struct sunxi_nand_chip *to_sunxi_nand(struct nand_chip *nand)
  * @reg_io_data:	I/O data register
  * @reg_ecc_err_cnt:	ECC error counter register
  * @reg_user_data:	User data register
+ * @reg_spare_area:	Spare Area Register
  * @reg_pat_id:		Pattern ID Register
  * @reg_pat_found:	Data Pattern Status Register
  * @random_en_mask:	RANDOM_EN mask in NFC_ECC_CTL register
@@ -255,6 +257,7 @@ struct sunxi_nfc_caps {
 	unsigned int reg_io_data;
 	unsigned int reg_ecc_err_cnt;
 	unsigned int reg_user_data;
+	unsigned int reg_spare_area;
 	unsigned int reg_pat_id;
 	unsigned int reg_pat_found;
 	unsigned int random_en_mask;
@@ -477,7 +480,7 @@ static void sunxi_nfc_select_chip(struct nand_chip *nand, unsigned int cs)
 	if (sel->rb >= 0)
 		ctl |= NFC_RB_SEL(sel->rb);
 
-	writel(mtd->writesize, nfc->regs + NFC_REG_SPARE_AREA);
+	writel(mtd->writesize, nfc->regs + NFC_REG_SPARE_AREA(nfc));
 
 	if (nfc->clk_rate != sunxi_nand->clk_rate) {
 		clk_set_rate(nfc->mod_clk, sunxi_nand->clk_rate);
@@ -2236,6 +2239,7 @@ static const struct sunxi_nfc_caps sunxi_nfc_a10_caps = {
 	.reg_io_data = NFC_REG_A10_IO_DATA,
 	.reg_ecc_err_cnt = NFC_REG_A10_ECC_ERR_CNT,
 	.reg_user_data = NFC_REG_A10_USER_DATA,
+	.reg_spare_area = NFC_REG_A10_SPARE_AREA,
 	.reg_pat_id = NFC_REG_A10_PAT_ID,
 	.reg_pat_found = NFC_REG_ECC_ST,
 	.random_en_mask = BIT(9),
@@ -2253,6 +2257,7 @@ static const struct sunxi_nfc_caps sunxi_nfc_a23_caps = {
 	.reg_io_data = NFC_REG_A23_IO_DATA,
 	.reg_ecc_err_cnt = NFC_REG_A10_ECC_ERR_CNT,
 	.reg_user_data = NFC_REG_A10_USER_DATA,
+	.reg_spare_area = NFC_REG_A10_SPARE_AREA,
 	.reg_pat_id = NFC_REG_A10_PAT_ID,
 	.reg_pat_found = NFC_REG_ECC_ST,
 	.random_en_mask = BIT(9),