[U-Boot] [U-Boot:RESEND][[PATCH 5/7 v1] NAND: DaVinci: allow forced disable of subpage writes

Murali Karicheri
2014-02-07T23:23:12Z

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>
---
- Resend with some more in cc
- Updated README to include the option as per review comments
README | 5 +++++
drivers/mtd/nand/davinci_nand.c | 3 +++
2 files changed, 8 insertions(+)

diff --git a/README b/README
index aea82be..caf60a2 100644
--- a/README
+++ b/README
@@ -4427,6 +4427,11 @@ Low Level (hardware related) configuration options:
- CONFIG_SPL_AM33XX_ENABLE_RTC32K_OSC:
Enables the RTC32K OSC on AM33xx based plattforms

+- CONFIG_SYS_NAND_NO_SUBPAGE_WRITE
+ Option to disable subpage write in NAND driver
+ Example driver that use this:
+ drivers/mtd/nand/davinci_nand.c
+
Freescale QE/FMAN Firmware Support:
-----------------------------------

diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c
index 5b17d7b..75b03a7 100644
--- a/drivers/mtd/nand/davinci_nand.c
+++ b/drivers/mtd/nand/davinci_nand.c
@@ -609,6 +609,9 @@ void davinci_nand_init(struct nand_chip *nand)
#ifdef CONFIG_SYS_NAND_USE_FLASH_BBT
nand->bbt_options |= NAND_BBT_USE_FLASH;
#endif
+#ifdef CONFIG_SYS_NAND_NO_SUBPAGE_WRITE
+ nand->options |= NAND_NO_SUBPAGE_WRITE;
+#endif
#ifdef CONFIG_SYS_NAND_HW_ECC
nand->ecc.mode = NAND_ECC_HW;
nand->ecc.size = 512;
--
1.7.9.5