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NAND: DaVinci: allow forced disable of subpage writes

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This patch introduces a configurable mechanism to disable
subpage writes in the DaVinci NAND driver.

Signed-off-by: Vitaly Andrianov <vitalya@ti.com>
Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Acked-by: Tom Rini <trini@ti.com>
This commit is contained in:
Karicheri, Muralidharan 2014-04-04 13:16:50 -04:00 committed by Tom Rini
parent 11bc755722
commit 999d7d326d
2 changed files with 8 additions and 0 deletions
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5
README
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@ -4496,6 +4496,11 @@ Low Level (hardware related) configuration options:
- CONFIG_SPL_AM33XX_ENABLE_RTC32K_OSC: - CONFIG_SPL_AM33XX_ENABLE_RTC32K_OSC:
Enables the RTC32K OSC on AM33xx based plattforms Enables the RTC32K OSC on AM33xx based plattforms
- CONFIG_SYS_NAND_NO_SUBPAGE_WRITE
Option to disable subpage write in NAND driver
driver that uses this:
drivers/mtd/nand/davinci_nand.c
Freescale QE/FMAN Firmware Support: Freescale QE/FMAN Firmware Support:
----------------------------------- -----------------------------------

3
drivers/mtd/nand/davinci_nand.c
View file

@ -609,6 +609,9 @@ void davinci_nand_init(struct nand_chip *nand)
#ifdef CONFIG_SYS_NAND_USE_FLASH_BBT #ifdef CONFIG_SYS_NAND_USE_FLASH_BBT
nand->bbt_options |= NAND_BBT_USE_FLASH; nand->bbt_options |= NAND_BBT_USE_FLASH;
#endif #endif
#ifdef CONFIG_SYS_NAND_NO_SUBPAGE_WRITE
nand->options |= NAND_NO_SUBPAGE_WRITE;
#endif
#ifdef CONFIG_SYS_NAND_HW_ECC #ifdef CONFIG_SYS_NAND_HW_ECC
nand->ecc.mode = NAND_ECC_HW; nand->ecc.mode = NAND_ECC_HW;
nand->ecc.size = 512; nand->ecc.size = 512;