summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorWolfgang Denk <wd@denx.de>2009-11-21 23:17:57 +0100
committerWolfgang Denk <wd@denx.de>2009-11-21 23:17:57 +0100
commitdb6ab438d6e112b65b210f3ab00848e664c8f762 (patch)
treeb5ca3ad9a11c3f23767a942e511b4a534c8c1df7
parent77b2517519904194a3eb247a3bb32cb09fac70d7 (diff)
parent10a5a7991258019af155bc19b3b246aaa708b0e2 (diff)
downloadu-boot-imx-db6ab438d6e112b65b210f3ab00848e664c8f762.zip
u-boot-imx-db6ab438d6e112b65b210f3ab00848e664c8f762.tar.gz
u-boot-imx-db6ab438d6e112b65b210f3ab00848e664c8f762.tar.bz2
Merge branch 'next' of git://git.denx.de/u-boot-nand-flash into next
-rw-r--r--drivers/mtd/nand/davinci_nand.c23
-rw-r--r--drivers/mtd/nand/nand_base.c2
-rw-r--r--drivers/mtd/nand/s3c2410_nand.c31
-rw-r--r--include/linux/mtd/mtd-abi.h2
4 files changed, 45 insertions, 13 deletions
diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c
index eabaf3e..41a9568 100644
--- a/drivers/mtd/nand/davinci_nand.c
+++ b/drivers/mtd/nand/davinci_nand.c
@@ -182,13 +182,7 @@ static int nand_davinci_correct_data(struct mtd_info *mtd, u_char *dat, u_char *
#ifdef CONFIG_SYS_NAND_4BIT_HW_ECC_OOBFIRST
static struct nand_ecclayout nand_davinci_4bit_layout_oobfirst = {
-/*
- * TI uses a different layout for 4K page deviecs. Since the
- * eccpos filed can hold only a limited number of entries, adding
- * support for 4K page will result in compilation warnings
- * 4K Support will be added later
- */
-#ifdef CONFIG_SYS_NAND_PAGE_2K
+#if defined(CONFIG_SYS_NAND_PAGE_2K)
.eccbytes = 40,
.eccpos = {
24, 25, 26, 27, 28,
@@ -200,6 +194,21 @@ static struct nand_ecclayout nand_davinci_4bit_layout_oobfirst = {
.oobfree = {
{.offset = 2, .length = 22, },
},
+#elif defined(CONFIG_SYS_NAND_PAGE_4K)
+ .eccbytes = 80,
+ .eccpos = {
+ 48, 49, 50, 51, 52, 53, 54, 55, 56, 57,
+ 58, 59, 60, 61, 62, 63, 64, 65, 66, 67,
+ 68, 69, 70, 71, 72, 73, 74, 75, 76, 77,
+ 78, 79, 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 = 46, },
+ },
#endif
};
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index 6da261c..7171bdd 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -1061,7 +1061,7 @@ static int nand_read_subpage(struct mtd_info *mtd, struct nand_chip *chip, uint3
int stat;
stat = chip->ecc.correct(mtd, p, &chip->buffers->ecccode[i], &chip->buffers->ecccalc[i]);
- if (stat < 0)
+ if (stat == -1)
mtd->ecc_stats.failed++;
else
mtd->ecc_stats.corrected += stat;
diff --git a/drivers/mtd/nand/s3c2410_nand.c b/drivers/mtd/nand/s3c2410_nand.c
index f2f3e72..815c78e 100644
--- a/drivers/mtd/nand/s3c2410_nand.c
+++ b/drivers/mtd/nand/s3c2410_nand.c
@@ -36,6 +36,21 @@
#define S3C2410_ADDR_NALE 4
#define S3C2410_ADDR_NCLE 8
+#ifdef CONFIG_NAND_SPL
+
+/* in the early stage of NAND flash booting, printf() is not available */
+#define printf(fmt, args...)
+
+static void nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
+{
+ int i;
+ struct nand_chip *this = mtd->priv;
+
+ for (i = 0; i < len; i++)
+ buf[i] = readb(this->IO_ADDR_R);
+}
+#endif
+
static void s3c2410_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
{
struct nand_chip *chip = mtd->priv;
@@ -83,9 +98,10 @@ void s3c2410_nand_enable_hwecc(struct mtd_info *mtd, int mode)
static int s3c2410_nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat,
u_char *ecc_code)
{
- ecc_code[0] = NFECC0;
- ecc_code[1] = NFECC1;
- ecc_code[2] = NFECC2;
+ struct s3c2410_nand *nand = s3c2410_get_base_nand();
+ ecc_code[0] = readb(&nand->NFECC);
+ ecc_code[1] = readb(&nand->NFECC + 1);
+ ecc_code[2] = readb(&nand->NFECC + 2);
debugX(1, "s3c2410_nand_calculate_hwecc(%p,): 0x%02x 0x%02x 0x%02x\n",
mtd , ecc_code[0], ecc_code[1], ecc_code[2]);
@@ -130,8 +146,13 @@ int board_nand_init(struct nand_chip *nand)
/* initialize nand_chip data structure */
nand->IO_ADDR_R = nand->IO_ADDR_W = (void *)&nand_reg->NFDATA;
+ nand->select_chip = NULL;
+
/* read_buf and write_buf are default */
/* read_byte and write_byte are default */
+#ifdef CONFIG_NAND_SPL
+ nand->read_buf = nand_read_buf;
+#endif
/* hwcontrol always must be implemented */
nand->cmd_ctrl = s3c2410_hwcontrol;
@@ -142,7 +163,9 @@ int board_nand_init(struct nand_chip *nand)
nand->ecc.hwctl = s3c2410_nand_enable_hwecc;
nand->ecc.calculate = s3c2410_nand_calculate_ecc;
nand->ecc.correct = s3c2410_nand_correct_data;
- nand->ecc.mode = NAND_ECC_HW3_512;
+ nand->ecc.mode = NAND_ECC_HW;
+ nand->ecc.size = CONFIG_SYS_NAND_ECCSIZE;
+ nand->ecc.bytes = CONFIG_SYS_NAND_ECCBYTES;
#else
nand->ecc.mode = NAND_ECC_SOFT;
#endif
diff --git a/include/linux/mtd/mtd-abi.h b/include/linux/mtd/mtd-abi.h
index 410c5dd..8d5f60c 100644
--- a/include/linux/mtd/mtd-abi.h
+++ b/include/linux/mtd/mtd-abi.h
@@ -123,7 +123,7 @@ struct nand_oobfree {
*/
struct nand_ecclayout {
uint32_t eccbytes;
- uint32_t eccpos[64];
+ uint32_t eccpos[128];
uint32_t oobavail;
struct nand_oobfree oobfree[MTD_MAX_OOBFREE_ENTRIES];
};