diff options
| author | Ezequiel Garcia <ezequiel.garcia@free-electrons.com> | 2013-11-14 21:25:31 (GMT) |
|---|---|---|
| committer | Brian Norris <computersforpeace@gmail.com> | 2014-01-03 19:22:12 (GMT) |
| commit | 86beebae3acf531b75e63d88b7ec9b3804ce895e (patch) | |
| tree | 1f527cdaf685ccf767a965155d122243288f7f0d /drivers/mtd/nand/pxa3xx_nand.c | |
| parent | f0e6a32e9af51e2a65c3cbedbad4cbc6b1479330 (diff) | |
| download | linux-86beebae3acf531b75e63d88b7ec9b3804ce895e.tar.xz | |
mtd: nand: pxa3xx: Add helper function to set page address
Let's simplify the code by first introducing a helper function
to set the page address, as done by the READ0, READOOB and SEQIN
commands.
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Tested-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Diffstat (limited to 'drivers/mtd/nand/pxa3xx_nand.c')
| -rw-r--r-- | drivers/mtd/nand/pxa3xx_nand.c | 36 |
1 files changed, 21 insertions, 15 deletions
diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c index 2962614..4469163 100644 --- a/drivers/mtd/nand/pxa3xx_nand.c +++ b/drivers/mtd/nand/pxa3xx_nand.c @@ -583,6 +583,26 @@ static inline int is_buf_blank(uint8_t *buf, size_t len) return 1; } +static void set_command_address(struct pxa3xx_nand_info *info, + unsigned int page_size, uint16_t column, int page_addr) +{ + /* small page addr setting */ + if (page_size < PAGE_CHUNK_SIZE) { + info->ndcb1 = ((page_addr & 0xFFFFFF) << 8) + | (column & 0xFF); + + info->ndcb2 = 0; + } else { + info->ndcb1 = ((page_addr & 0xFFFF) << 16) + | (column & 0xFFFF); + + if (page_addr & 0xFF0000) + info->ndcb2 = (page_addr & 0xFF0000) >> 16; + else + info->ndcb2 = 0; + } +} + static int prepare_command_pool(struct pxa3xx_nand_info *info, int command, uint16_t column, int page_addr) { @@ -646,22 +666,8 @@ static int prepare_command_pool(struct pxa3xx_nand_info *info, int command, info->ndcb0 |= NDCB0_DBC | (NAND_CMD_READSTART << 8); case NAND_CMD_SEQIN: - /* small page addr setting */ - if (unlikely(mtd->writesize < PAGE_CHUNK_SIZE)) { - info->ndcb1 = ((page_addr & 0xFFFFFF) << 8) - | (column & 0xFF); - - info->ndcb2 = 0; - } else { - info->ndcb1 = ((page_addr & 0xFFFF) << 16) - | (column & 0xFFFF); - - if (page_addr & 0xFF0000) - info->ndcb2 = (page_addr & 0xFF0000) >> 16; - else - info->ndcb2 = 0; - } + set_command_address(info, mtd->writesize, column, page_addr); info->buf_count = mtd->writesize + mtd->oobsize; memset(info->data_buff, 0xFF, info->buf_count); |