[MTD] [NAND] Add support for 4KiB pages. (81ec5364) · Commits · 戴 / test

drivers/mtd/nand/nand_base.c

+18 −0

Original line number	Diff line number	Diff line
		@@ -82,6 +82,20 @@ static struct nand_ecclayout nand_oob_64 = {
		.length = 38}}
		};

		static struct nand_ecclayout nand_oob_128 = {
		.eccbytes = 48,
		.eccpos = {
		80, 81, 82, 83, 84, 85, 86, 87,
		88, 89, 90, 91, 92, 93, 94, 95,
		96, 97, 98, 99, 100, 101, 102, 103,
		104, 105, 106, 107, 108, 109, 110, 111,
		112, 113, 114, 115, 116, 117, 118, 119,
		120, 121, 122, 123, 124, 125, 126, 127},
		.oobfree = {
		{.offset = 2,
		.length = 78}}
		};

		static int nand_get_device(struct nand_chip chip, struct mtd_info mtd,
		int new_state);

		@@ -2638,6 +2652,9 @@ int nand_scan_tail(struct mtd_info *mtd)
		case 64:
		chip->ecc.layout = &nand_oob_64;
		break;
		case 128:
		chip->ecc.layout = &nand_oob_128;
		break;
		default:
		printk(KERN_WARNING "No oob scheme defined for "
		"oobsize %d\n", mtd->oobsize);
		@@ -2767,6 +2784,7 @@ int nand_scan_tail(struct mtd_info *mtd)
		break;
		case 4:
		case 8:
		case 16:
		mtd->subpage_sft = 2;
		break;
		}

+2 −2

Original line number	Diff line number	Diff line
		@@ -43,8 +43,8 @@ extern void nand_wait_ready(struct mtd_info *mtd);
		* is supported now. If you add a chip with bigger oobsize/page
		* adjust this accordingly.
		*/
		#define NAND_MAX_OOBSIZE 64
		#define NAND_MAX_PAGESIZE 2048
		#define NAND_MAX_OOBSIZE 128
		#define NAND_MAX_PAGESIZE 4096

		/*
		* Constants for hardware specific CLE/ALE/NCE function