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path: root/drivers/mtd/nand/davinci_nand.c
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Diffstat (limited to 'drivers/mtd/nand/davinci_nand.c')
-rw-r--r--drivers/mtd/nand/davinci_nand.c28
1 files changed, 8 insertions, 20 deletions
diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c
index 9e7b9dd..ca40c6a 100644
--- a/drivers/mtd/nand/davinci_nand.c
+++ b/drivers/mtd/nand/davinci_nand.c
@@ -47,8 +47,6 @@
#include <asm/arch/nand_defs.h>
#include <asm/arch/emif_defs.h>
-extern struct nand_chip nand_dev_desc[CONFIG_SYS_MAX_NAND_DEVICE];
-
static emif_registers *const emif_regs = (void *) DAVINCI_ASYNC_EMIF_CNTRL_BASE;
static void nand_davinci_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
@@ -70,21 +68,6 @@ static void nand_davinci_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int c
writeb(cmd, this->IO_ADDR_W);
}
-/* Set WP on deselect, write enable on select */
-static void nand_davinci_select_chip(struct mtd_info *mtd, int chip)
-{
-#define GPIO_SET_DATA01 0x01c67018
-#define GPIO_CLR_DATA01 0x01c6701c
-#define GPIO_NAND_WP (1 << 4)
-#ifdef SONATA_BOARD_GPIOWP
- if (chip < 0) {
- REG(GPIO_CLR_DATA01) |= GPIO_NAND_WP;
- } else {
- REG(GPIO_SET_DATA01) |= GPIO_NAND_WP;
- }
-#endif
-}
-
#ifdef CONFIG_SYS_NAND_HW_ECC
static void nand_davinci_enable_hwecc(struct mtd_info *mtd, int mode)
@@ -228,10 +211,9 @@ static void nand_flash_init(void)
#endif
}
-int board_nand_init(struct nand_chip *nand)
+void davinci_nand_init(struct nand_chip *nand)
{
nand->chip_delay = 0;
- nand->select_chip = nand_davinci_select_chip;
#ifdef CONFIG_SYS_NAND_USE_FLASH_BBT
nand->options = NAND_USE_FLASH_BBT;
#endif
@@ -252,6 +234,12 @@ int board_nand_init(struct nand_chip *nand)
nand->dev_ready = nand_davinci_dev_ready;
nand_flash_init();
+}
- return(0);
+int board_nand_init(struct nand_chip *chip) __attribute__((weak));
+
+int board_nand_init(struct nand_chip *chip)
+{
+ davinci_nand_init(chip);
+ return 0;
}