diff options
Diffstat (limited to 'target/linux/ar71xx/files/drivers/mtd/nand/rb4xx_nand.c')
| -rw-r--r-- | target/linux/ar71xx/files/drivers/mtd/nand/rb4xx_nand.c | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/target/linux/ar71xx/files/drivers/mtd/nand/rb4xx_nand.c b/target/linux/ar71xx/files/drivers/mtd/nand/rb4xx_nand.c index 96ec5dd..b397575 100644 --- a/target/linux/ar71xx/files/drivers/mtd/nand/rb4xx_nand.c +++ b/target/linux/ar71xx/files/drivers/mtd/nand/rb4xx_nand.c @@ -23,6 +23,7 @@ #include <linux/io.h> #include <linux/gpio.h> #include <linux/slab.h> +#include <linux/version.h> #include <asm/mach-ath79/ath79.h> #include <asm/mach-ath79/rb4xx_cpld.h> @@ -41,6 +42,7 @@ struct rb4xx_nand_info { struct mtd_info mtd; }; +#if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0) /* * We need to use the OLD Yaffs-1 OOB layout, otherwise the RB bootloader * will not be able to find the kernel that we load. @@ -52,6 +54,56 @@ static struct nand_ecclayout rb4xx_nand_ecclayout = { .oobfree = { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } } }; +#else + +static int rb4xx_ooblayout_ecc(struct mtd_info *mtd, int section, + struct mtd_oob_region *oobregion) +{ + switch (section) { + case 0: + oobregion->offset = 8; + oobregion->length = 3; + return 0; + case 1: + oobregion->offset = 13; + oobregion->length = 3; + return 0; + default: + return -ERANGE; + } +} + +static int rb4xx_ooblayout_free(struct mtd_info *mtd, int section, + struct mtd_oob_region *oobregion) +{ + switch (section) { + case 0: + oobregion->offset = 0; + oobregion->length = 4; + return 0; + case 1: + oobregion->offset = 4; + oobregion->length = 1; + return 0; + case 2: + oobregion->offset = 6; + oobregion->length = 2; + return 0; + case 3: + oobregion->offset = 11; + oobregion->length = 2; + return 0; + default: + return -ERANGE; + } +} + +static const struct mtd_ooblayout_ops rb4xx_nand_ecclayout_ops = { + .ecc = rb4xx_ooblayout_ecc, + .free = rb4xx_ooblayout_free, +}; +#endif /* < 4.6 */ + static struct mtd_partition rb4xx_nand_partitions[] = { { .name = "booter", @@ -229,7 +281,11 @@ static int rb4xx_nand_probe(struct platform_device *pdev) } if (info->mtd.writesize == 512) +#if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0) info->chip.ecc.layout = &rb4xx_nand_ecclayout; +#else + mtd_set_ooblayout(&info->mtd, &rb4xx_nand_ecclayout_ops); +#endif ret = nand_scan_tail(&info->mtd); if (ret) { |