diff options
| author | Josh Wu <josh.wu@atmel.com> | 2013-05-09 07:34:55 (GMT) |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2013-08-05 19:56:15 (GMT) |
| commit | 1b7192658a08f70df0f290634fd7cd2ecb629fc9 (patch) | |
| tree | bc6bccfafb2ff417638d8161fd188b4b3cf1e07d /drivers/mtd/nand/atmel_nand.c | |
| parent | 71b94e2e866aa35f40945d9e820fc3214b792d1f (diff) | |
| download | linux-1b7192658a08f70df0f290634fd7cd2ecb629fc9.tar.xz | |
mtd: atmel_nand: add a new dt binding item for nand dma support
This patch will set the nand dma support in dts. Since we will not use
cpu_is_xxx() in nand driver. We needn't include the mach/cpu.h any more.
Signed-off-by: Josh Wu <josh.wu@atmel.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/mtd/nand/atmel_nand.c')
| -rw-r--r-- | drivers/mtd/nand/atmel_nand.c | 11 |
1 files changed, 3 insertions, 8 deletions
diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c index 7bf912b..61d3869 100644 --- a/drivers/mtd/nand/atmel_nand.c +++ b/drivers/mtd/nand/atmel_nand.c @@ -43,8 +43,6 @@ #include <linux/platform_data/atmel.h> #include <linux/pinctrl/consumer.h> -#include <mach/cpu.h> - static int use_dma = 1; module_param(use_dma, int, 0); @@ -128,11 +126,6 @@ struct atmel_nand_host { static struct nand_ecclayout atmel_pmecc_oobinfo; -static int cpu_has_dma(void) -{ - return cpu_is_at91sam9rl() || cpu_is_at91sam9g45(); -} - /* * Enable NAND. */ @@ -1336,6 +1329,8 @@ static int atmel_of_init_port(struct atmel_nand_host *host, board->on_flash_bbt = of_get_nand_on_flash_bbt(np); + board->has_dma = of_property_read_bool(np, "atmel,nand-has-dma"); + if (of_get_nand_bus_width(np) == 16) board->bus_width_16 = 1; @@ -1600,7 +1595,7 @@ static int __init atmel_nand_probe(struct platform_device *pdev) nand_chip->bbt_options |= NAND_BBT_USE_FLASH; } - if (!cpu_has_dma()) + if (!host->board.has_dma) use_dma = 0; if (use_dma) { |