mtd: rawnand: sunxi: introduce sram_size in sunxi_nfc_caps

The H6/H616 the SRAM is bigger than the A10/A23 one, so move its size
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

@@ -167,8 +167,6 @@
 
 #define NFC_DEFAULT_TIMEOUT_MS	1000
 
-#define NFC_SRAM_SIZE		1024
-
 #define NFC_MAX_CS		7
 
 /*
@@ -251,6 +249,7 @@ static inline struct sunxi_nand_chip *to_sunxi_nand(struct nand_chip *nand)
  * @dma_maxburst:	DMA maxburst
  * @ecc_strengths:	Available ECC strengths array
  * @nstrengths:		Size of @ecc_strengths
+ * @sram_size:		Size of the NAND controller SRAM
  */
 struct sunxi_nfc_caps {
 	bool has_mdma;
@@ -269,6 +268,7 @@ struct sunxi_nfc_caps {
 	unsigned int dma_maxburst;
 	const u8 *ecc_strengths;
 	unsigned int nstrengths;
+	int sram_size;
 };
 
 /**
@@ -506,7 +506,7 @@ static void sunxi_nfc_read_buf(struct nand_chip *nand, uint8_t *buf, int len)
 	while (len > offs) {
 		bool poll = false;
 
-		cnt = min(len - offs, NFC_SRAM_SIZE);
+		cnt = min(len - offs, nfc->caps->sram_size);
 
 		ret = sunxi_nfc_wait_cmd_fifo_empty(nfc);
 		if (ret)
@@ -544,7 +544,7 @@ static void sunxi_nfc_write_buf(struct nand_chip *nand, const uint8_t *buf,
 	while (len > offs) {
 		bool poll = false;
 
-		cnt = min(len - offs, NFC_SRAM_SIZE);
+		cnt = min(len - offs, nfc->caps->sram_size);
 
 		ret = sunxi_nfc_wait_cmd_fifo_empty(nfc);
 		if (ret)
@@ -1871,7 +1871,7 @@ static int sunxi_nfc_exec_subop(struct nand_chip *nand,
 		case NAND_OP_DATA_OUT_INSTR:
 			start = nand_subop_get_data_start_off(subop, i);
 			remaining = nand_subop_get_data_len(subop, i);
-			cnt = min_t(u32, remaining, NFC_SRAM_SIZE);
+			cnt = min_t(u32, remaining, nfc->caps->sram_size);
 			cmd |= NFC_DATA_TRANS | NFC_DATA_SWAP_METHOD;
 
 			if (instr->type == NAND_OP_DATA_OUT_INSTR) {
@@ -2252,6 +2252,7 @@ static const struct sunxi_nfc_caps sunxi_nfc_a10_caps = {
 	.dma_maxburst = 4,
 	.ecc_strengths = sunxi_ecc_strengths_a10,
 	.nstrengths = ARRAY_SIZE(sunxi_ecc_strengths_a10),
+	.sram_size = 1024,
 };
 
 static const struct sunxi_nfc_caps sunxi_nfc_a23_caps = {
@@ -2271,6 +2272,7 @@ static const struct sunxi_nfc_caps sunxi_nfc_a23_caps = {
 	.dma_maxburst = 8,
 	.ecc_strengths = sunxi_ecc_strengths_a10,
 	.nstrengths = ARRAY_SIZE(sunxi_ecc_strengths_a10),
+	.sram_size = 1024,
 };
 
 static const struct of_device_id sunxi_nfc_ids[] = {