diff options
| -rw-r--r-- | drivers/mtd/nand/am335x_spl_bch.c | 49 | ||||
| -rw-r--r-- | drivers/mtd/nand/atmel_nand.c | 30 | ||||
| -rw-r--r-- | drivers/mtd/nand/nand_spl_loaders.c | 104 | ||||
| -rw-r--r-- | drivers/mtd/nand/nand_spl_simple.c | 98 |
4 files changed, 110 insertions, 171 deletions
diff --git a/drivers/mtd/nand/am335x_spl_bch.c b/drivers/mtd/nand/am335x_spl_bch.c index 5b189a1d8a5..e68b4a5b196 100644 --- a/drivers/mtd/nand/am335x_spl_bch.c +++ b/drivers/mtd/nand/am335x_spl_bch.c @@ -198,53 +198,6 @@ static int nand_read_page(int block, int page, void *dst) return 0; } -int nand_spl_load_image(uint32_t offs, unsigned int size, void *dst) -{ - unsigned int block, lastblock; - unsigned int page, page_offset; - - /* - * offs has to be aligned to a page address! - */ - block = offs / CONFIG_SYS_NAND_BLOCK_SIZE; - lastblock = (offs + size - 1) / CONFIG_SYS_NAND_BLOCK_SIZE; - page = (offs % CONFIG_SYS_NAND_BLOCK_SIZE) / CONFIG_SYS_NAND_PAGE_SIZE; - page_offset = offs % CONFIG_SYS_NAND_PAGE_SIZE; - - while (block <= lastblock) { - if (!nand_is_bad_block(block)) { - /* - * Skip bad blocks - */ - while (page < CONFIG_SYS_NAND_PAGE_COUNT) { - nand_read_page(block, page, dst); - /* - * When offs is not aligned to page address the - * extra offset is copied to dst as well. Copy - * the image such that its first byte will be - * at the dst. - */ - if (unlikely(page_offset)) { - memmove(dst, dst + page_offset, - CONFIG_SYS_NAND_PAGE_SIZE); - dst = (void *)((int)dst - page_offset); - page_offset = 0; - } - dst += CONFIG_SYS_NAND_PAGE_SIZE; - page++; - } - - page = 0; - } else { - lastblock++; - } - - block++; - } - - return 0; -} - /* nand_init() - initialize data to make nand usable by SPL */ void nand_init(void) { @@ -269,3 +222,5 @@ void nand_deselect(void) if (nand_chip.select_chip) nand_chip.select_chip(mtd, -1); } + +#include "nand_spl_loaders.c" diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c index 21d5d0e70d0..7c10bfedc6d 100644 --- a/drivers/mtd/nand/atmel_nand.c +++ b/drivers/mtd/nand/atmel_nand.c @@ -1380,34 +1380,6 @@ static int nand_read_page(int block, int page, void *dst) } #endif /* CONFIG_SPL_NAND_ECC */ -int nand_spl_load_image(uint32_t offs, unsigned int size, void *dst) -{ - unsigned int block, lastblock; - unsigned int page; - - block = offs / CONFIG_SYS_NAND_BLOCK_SIZE; - lastblock = (offs + size - 1) / CONFIG_SYS_NAND_BLOCK_SIZE; - page = (offs % CONFIG_SYS_NAND_BLOCK_SIZE) / CONFIG_SYS_NAND_PAGE_SIZE; - - while (block <= lastblock) { - if (!nand_is_bad_block(block)) { - while (page < CONFIG_SYS_NAND_PAGE_COUNT) { - nand_read_page(block, page, dst); - dst += CONFIG_SYS_NAND_PAGE_SIZE; - page++; - } - - page = 0; - } else { - lastblock++; - } - - block++; - } - - return 0; -} - int at91_nand_wait_ready(struct mtd_info *mtd) { struct nand_chip *this = mtd_to_nand(mtd); @@ -1474,6 +1446,8 @@ void nand_deselect(void) nand_chip.select_chip(mtd, -1); } +#include "nand_spl_loaders.c" + #else #ifndef CONFIG_SYS_NAND_BASE_LIST diff --git a/drivers/mtd/nand/nand_spl_loaders.c b/drivers/mtd/nand/nand_spl_loaders.c new file mode 100644 index 00000000000..177c12b5815 --- /dev/null +++ b/drivers/mtd/nand/nand_spl_loaders.c @@ -0,0 +1,104 @@ +int nand_spl_load_image(uint32_t offs, unsigned int size, void *dst) +{ + unsigned int block, lastblock; + unsigned int page, page_offset; + + /* offs has to be aligned to a page address! */ + block = offs / CONFIG_SYS_NAND_BLOCK_SIZE; + lastblock = (offs + size - 1) / CONFIG_SYS_NAND_BLOCK_SIZE; + page = (offs % CONFIG_SYS_NAND_BLOCK_SIZE) / CONFIG_SYS_NAND_PAGE_SIZE; + page_offset = offs % CONFIG_SYS_NAND_PAGE_SIZE; + + while (block <= lastblock) { + if (!nand_is_bad_block(block)) { + /* Skip bad blocks */ + while (page < CONFIG_SYS_NAND_PAGE_COUNT) { + nand_read_page(block, page, dst); + /* + * When offs is not aligned to page address the + * extra offset is copied to dst as well. Copy + * the image such that its first byte will be + * at the dst. + */ + if (unlikely(page_offset)) { + memmove(dst, dst + page_offset, + CONFIG_SYS_NAND_PAGE_SIZE); + dst = (void *)((int)dst - page_offset); + page_offset = 0; + } + dst += CONFIG_SYS_NAND_PAGE_SIZE; + page++; + } + + page = 0; + } else { + lastblock++; + } + + block++; + } + + return 0; +} + +#ifdef CONFIG_SPL_UBI +/* + * Temporary storage for non NAND page aligned and non NAND page sized + * reads. Note: This does not support runtime detected FLASH yet, but + * that should be reasonably easy to fix by making the buffer large + * enough :) + */ +static u8 scratch_buf[CONFIG_SYS_NAND_PAGE_SIZE]; + +/** + * nand_spl_read_block - Read data from physical eraseblock into a buffer + * @block: Number of the physical eraseblock + * @offset: Data offset from the start of @peb + * @len: Data size to read + * @dst: Address of the destination buffer + * + * This could be further optimized if we'd have a subpage read + * function in the simple code. On NAND which allows subpage reads + * this would spare quite some time to readout e.g. the VID header of + * UBI. + * + * Notes: + * @offset + @len are not allowed to be larger than a physical + * erase block. No sanity check done for simplicity reasons. + * + * To support runtime detected flash this needs to be extended by + * information about the actual flash geometry, but thats beyond the + * scope of this effort and for most applications where fast boot is + * required it is not an issue anyway. + */ +int nand_spl_read_block(int block, int offset, int len, void *dst) +{ + int page, read; + + /* Calculate the page number */ + page = offset / CONFIG_SYS_NAND_PAGE_SIZE; + + /* Offset to the start of a flash page */ + offset = offset % CONFIG_SYS_NAND_PAGE_SIZE; + + while (len) { + /* + * Non page aligned reads go to the scratch buffer. + * Page aligned reads go directly to the destination. + */ + if (offset || len < CONFIG_SYS_NAND_PAGE_SIZE) { + nand_read_page(block, page, scratch_buf); + read = min(len, CONFIG_SYS_NAND_PAGE_SIZE - offset); + memcpy(dst, scratch_buf + offset, read); + offset = 0; + } else { + nand_read_page(block, page, dst); + read = CONFIG_SYS_NAND_PAGE_SIZE; + } + page++; + len -= read; + dst += read; + } + return 0; +} +#endif diff --git a/drivers/mtd/nand/nand_spl_simple.c b/drivers/mtd/nand/nand_spl_simple.c index 55f48d3a142..56e86d17609 100644 --- a/drivers/mtd/nand/nand_spl_simple.c +++ b/drivers/mtd/nand/nand_spl_simple.c @@ -209,102 +209,6 @@ static int nand_read_page(int block, int page, void *dst) } #endif -#ifdef CONFIG_SPL_UBI -/* - * Temporary storage for non NAND page aligned and non NAND page sized - * reads. Note: This does not support runtime detected FLASH yet, but - * that should be reasonably easy to fix by making the buffer large - * enough :) - */ -static u8 scratch_buf[CONFIG_SYS_NAND_PAGE_SIZE]; - -/** - * nand_spl_read_block - Read data from physical eraseblock into a buffer - * @block: Number of the physical eraseblock - * @offset: Data offset from the start of @peb - * @len: Data size to read - * @dst: Address of the destination buffer - * - * This could be further optimized if we'd have a subpage read - * function in the simple code. On NAND which allows subpage reads - * this would spare quite some time to readout e.g. the VID header of - * UBI. - * - * Notes: - * @offset + @len are not allowed to be larger than a physical - * erase block. No sanity check done for simplicity reasons. - * - * To support runtime detected flash this needs to be extended by - * information about the actual flash geometry, but thats beyond the - * scope of this effort and for most applications where fast boot is - * required it is not an issue anyway. - */ -int nand_spl_read_block(int block, int offset, int len, void *dst) -{ - int page, read; - - /* Calculate the page number */ - page = offset / CONFIG_SYS_NAND_PAGE_SIZE; - - /* Offset to the start of a flash page */ - offset = offset % CONFIG_SYS_NAND_PAGE_SIZE; - - while (len) { - /* - * Non page aligned reads go to the scratch buffer. - * Page aligned reads go directly to the destination. - */ - if (offset || len < CONFIG_SYS_NAND_PAGE_SIZE) { - nand_read_page(block, page, scratch_buf); - read = min(len, CONFIG_SYS_NAND_PAGE_SIZE - offset); - memcpy(dst, scratch_buf + offset, read); - offset = 0; - } else { - nand_read_page(block, page, dst); - read = CONFIG_SYS_NAND_PAGE_SIZE; - } - page++; - len -= read; - dst += read; - } - return 0; -} -#endif - -int nand_spl_load_image(uint32_t offs, unsigned int size, void *dst) -{ - unsigned int block, lastblock; - unsigned int page; - - /* - * offs has to be aligned to a page address! - */ - block = offs / CONFIG_SYS_NAND_BLOCK_SIZE; - lastblock = (offs + size - 1) / CONFIG_SYS_NAND_BLOCK_SIZE; - page = (offs % CONFIG_SYS_NAND_BLOCK_SIZE) / CONFIG_SYS_NAND_PAGE_SIZE; - - while (block <= lastblock) { - if (!nand_is_bad_block(block)) { - /* - * Skip bad blocks - */ - while (page < CONFIG_SYS_NAND_PAGE_COUNT) { - nand_read_page(block, page, dst); - dst += CONFIG_SYS_NAND_PAGE_SIZE; - page++; - } - - page = 0; - } else { - lastblock++; - } - - block++; - } - - return 0; -} - /* nand_init() - initialize data to make nand usable by SPL */ void nand_init(void) { @@ -333,3 +237,5 @@ void nand_deselect(void) if (nand_chip.select_chip) nand_chip.select_chip(mtd, -1); } + +#include "nand_spl_loaders.c" |