From aaa8eec532876c47acfd31bf9b573a00eaad92ae Mon Sep 17 00:00:00 2001 From: Sandeep Paulraj Date: Fri, 30 Oct 2009 13:51:23 -0400 Subject: NAND: Update to support 64 bit device size This patch adds support for NANDs greater than 2 GB. Patch is based on the MTD NAND driver in the kernel. Signed-off-by: Sandeep Paulraj Signed-off-by: Scott Wood --- include/linux/mtd/nand.h | 2 +- include/linux/mtd/partitions.h | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index cb7c19a439..94ad0c0e36 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -397,7 +397,7 @@ struct nand_chip { int bbt_erase_shift; int chip_shift; int numchips; - unsigned long chipsize; + uint64_t chipsize; int pagemask; int pagebuf; int subpagesize; diff --git a/include/linux/mtd/partitions.h b/include/linux/mtd/partitions.h index 10166757bc..d1d9a96d58 100644 --- a/include/linux/mtd/partitions.h +++ b/include/linux/mtd/partitions.h @@ -38,8 +38,8 @@ struct mtd_partition { char *name; /* identifier string */ - u_int32_t size; /* partition size */ - u_int32_t offset; /* offset within the master MTD space */ + uint64_t size; /* partition size */ + uint64_t offset; /* offset within the master MTD space */ u_int32_t mask_flags; /* master MTD flags to mask out for this partition */ struct nand_ecclayout *ecclayout; /* out of band layout for this partition (NAND only)*/ struct mtd_info **mtdp; /* pointer to store the MTD object */ -- cgit From cacbe919584193f64e74088e03f068e52775bb86 Mon Sep 17 00:00:00 2001 From: Amul Kumar Saha Date: Fri, 6 Nov 2009 17:15:31 +0530 Subject: Flex-OneNAND driver support This patch adds support for Flex-OneNAND devices. Signed-off-by: Rohit Hagargundgi Signed-off-by: Amul Kumar Saha --- include/linux/mtd/onenand.h | 16 +++++++++++++++- include/linux/mtd/onenand_regs.h | 18 ++++++++++++++++-- 2 files changed, 31 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mtd/onenand.h b/include/linux/mtd/onenand.h index 9a6f31752e..68e174e310 100644 --- a/include/linux/mtd/onenand.h +++ b/include/linux/mtd/onenand.h @@ -20,8 +20,9 @@ #include #include +#define MAX_DIES 2 #define MAX_BUFFERRAM 2 -#define MAX_ONENAND_PAGESIZE (2048 + 64) +#define MAX_ONENAND_PAGESIZE (4096 + 128) /* Scan and identify a OneNAND device */ extern int onenand_scan (struct mtd_info *mtd, int max_chips); @@ -39,9 +40,14 @@ struct onenand_bufferram { /** * struct onenand_chip - OneNAND Private Flash Chip Data * @param base [BOARDSPECIFIC] address to access OneNAND + * @dies: [INTERN][FLEXONENAND] number of dies on chip + * @boundary: [INTERN][FLEXONENAND] Boundary of the dies + * @diesize: [INTERN][FLEXONENAND] Size of the dies * @param chipsize [INTERN] the size of one chip for multichip arrays * @param device_id [INTERN] device ID * @param verstion_id [INTERN] version ID + * @technology [INTERN] describes the internal NAND array technology such as SLC or MLC. + * @density_mask: [INTERN] chip density, used for DDP devices * @param options [BOARDSPECIFIC] various chip options. They can partly be set to inform onenand_scan about * @param erase_shift [INTERN] number of address bits in a block * @param page_shift [INTERN] number of address bits in a page @@ -64,9 +70,13 @@ struct onenand_bufferram { */ struct onenand_chip { void __iomem *base; + unsigned int dies; + unsigned int boundary[MAX_DIES]; + unsigned int diesize[MAX_DIES]; unsigned int chipsize; unsigned int device_id; unsigned int version_id; + unsigned int technology; unsigned int density_mask; unsigned int options; @@ -124,6 +134,8 @@ struct onenand_chip { #define ONENAND_SET_BUFFERRAM0(this) (this->bufferram_index = 0) #define ONENAND_SET_BUFFERRAM1(this) (this->bufferram_index = 1) +#define FLEXONENAND(this) (this->device_id & DEVICE_IS_FLEXONENAND) +#define ONENAND_IS_MLC(this) (this->technology & ONENAND_TECHNOLOGY_IS_MLC) #define ONENAND_IS_DDP(this) \ (this->device_id & ONENAND_DEVICE_IS_DDP) @@ -157,4 +169,6 @@ struct onenand_manufacturers { int onenand_bbt_read_oob(struct mtd_info *mtd, loff_t from, struct mtd_oob_ops *ops); +unsigned int onenand_block(struct onenand_chip *this, loff_t addr); +int flexonenand_region(struct mtd_info *mtd, loff_t addr); #endif /* __LINUX_MTD_ONENAND_H */ diff --git a/include/linux/mtd/onenand_regs.h b/include/linux/mtd/onenand_regs.h index 07fed1c60f..8449a3cdc3 100644 --- a/include/linux/mtd/onenand_regs.h +++ b/include/linux/mtd/onenand_regs.h @@ -67,6 +67,9 @@ /* * Device ID Register F001h (R) */ +#define DEVICE_IS_FLEXONENAND (1 << 9) +#define FLEXONENAND_PI_MASK (0x3ff) +#define FLEXONENAND_PI_UNLOCK_SHIFT (14) #define ONENAND_DEVICE_DENSITY_MASK (0xf) #define ONENAND_DEVICE_DENSITY_SHIFT (4) #define ONENAND_DEVICE_IS_DDP (1 << 3) @@ -83,6 +86,11 @@ */ #define ONENAND_VERSION_PROCESS_SHIFT (8) +/* + * Technology Register F006h (R) + */ +#define ONENAND_TECHNOLOGY_IS_MLC (1 << 0) + /* * Start Address 1 F100h (R/W) */ @@ -93,7 +101,7 @@ /* * Start Address 8 F107h (R/W) */ -#define ONENAND_FPA_MASK (0x3f) +#define ONENAND_FPA_MASK (0x7f) #define ONENAND_FPA_SHIFT (2) #define ONENAND_FSA_MASK (0x03) @@ -105,7 +113,7 @@ #define ONENAND_BSA_BOOTRAM (0 << 2) #define ONENAND_BSA_DATARAM0 (2 << 2) #define ONENAND_BSA_DATARAM1 (3 << 2) -#define ONENAND_BSC_MASK (0x03) +#define ONENAND_BSC_MASK (0x07) /* * Command Register F220h (R/W) @@ -125,9 +133,14 @@ #define ONENAND_CMD_ERASE_VERIFY (0x71) #define ONENAND_CMD_RESET (0xF0) #define ONENAND_CMD_READID (0x90) +#define FLEXONENAND_CMD_RESET (0xF3) +#define FLEXONENAND_CMD_PI_UPDATE (0x05) +#define FLEXONENAND_CMD_PI_ACCESS (0x66) +#define FLEXONENAND_CMD_RECOVER_LSB (0x05) /* NOTE: Those are not *REAL* commands */ #define ONENAND_CMD_BUFFERRAM (0x1978) +#define FLEXONENAND_CMD_READ_PI (0x1985) /* * System Configuration 1 Register F221h (R, R/W) @@ -190,5 +203,6 @@ #define ONENAND_ECC_2BIT (1 << 1) #define ONENAND_ECC_2BIT_ALL (0xAAAA) #define ONENAND_ECC_4BIT_UNCORRECTABLE (0x1010) +#define FLEXONENAND_UNCORRECTABLE_ERROR (0x1010) #endif /* __ONENAND_REG_H */ -- cgit From bb3e9828e7fbcc9e4518e51592876f4a0997d9ec Mon Sep 17 00:00:00 2001 From: Sandeep Paulraj Date: Mon, 16 Nov 2009 13:31:47 -0500 Subject: NAND:Extending the nand_ecclayout structure NANDs with page size of lesser than and equal to 2K are reaching EOL. They are bing replaced with NANDs of page size 4K and above. To support this we have to extend the eccpos field Signed-off-by: Sandeep Paulraj --- include/linux/mtd/mtd-abi.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/mtd/mtd-abi.h b/include/linux/mtd/mtd-abi.h index 410c5dd2fb..8d5f60c75e 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]; }; -- cgit From 20dde48bcadd856c86a91d5463831a10be46db83 Mon Sep 17 00:00:00 2001 From: Peter Korsgaard Date: Thu, 19 Nov 2009 11:37:51 +0100 Subject: add lzop decompression support Add lzop decompression support to the existing lzo bitstream handling (think gzip versus zlib), and support it for uImage decompression if CONFIG_LZO is enabled. Lzop doesn't compress as good as gzip (~10% worse), but decompression is very fast (~0.7s faster here on a slow ppc). The lzop decompression code is based on Albin Tonnerre's recent ARM Linux lzo support patch. Cc: albin.tonnerre@free-electrons.com Signed-off-by: Peter Korsgaard --- include/linux/lzo.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/linux') diff --git a/include/linux/lzo.h b/include/linux/lzo.h index d793497ec1..88687faba1 100644 --- a/include/linux/lzo.h +++ b/include/linux/lzo.h @@ -27,6 +27,10 @@ int lzo1x_1_compress(const unsigned char *src, size_t src_len, int lzo1x_decompress_safe(const unsigned char *src, size_t src_len, unsigned char *dst, size_t *dst_len); +/* decompress lzop format */ +int lzop_decompress(const unsigned char *src, size_t src_len, + unsigned char *dst, size_t *dst_len); + /* * Return values (< 0 = Error) */ -- cgit