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Davinci: ea20: Add NAND support

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Signed-off-by: Stefano Babic <sbabic@denx.de>
CC: Sandeep Paulraj <s-paulraj@ti.com>
CC: Scott Wood <scottwood@freescale.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
This commit is contained in:
Stefano Babic 2011-10-04 23:43:30 +00:00 committed by Albert ARIBAUD
parent ca1646b85d
commit 17a8904b27
2 changed files with 35 additions and 20 deletions
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35
board/davinci/ea20/ea20.c
View file

@ -74,20 +74,21 @@ static const struct pinmux_config emac_pins[] = {
#ifdef CONFIG_NAND_DAVINCI
const struct pinmux_config nand_pins[] = {
{ pinmux(7), 1, 1 },
{ pinmux(7), 1, 2 },
{ pinmux(7), 1, 4 },
{ pinmux(7), 1, 5 },
{ pinmux(9), 1, 0 },
{ pinmux(9), 1, 1 },
{ pinmux(9), 1, 2 },
{ pinmux(9), 1, 3 },
{ pinmux(9), 1, 4 },
{ pinmux(9), 1, 5 },
{ pinmux(9), 1, 6 },
{ pinmux(9), 1, 7 },
{ pinmux(12), 1, 5 },
{ pinmux(12), 1, 6 }
{ pinmux(7), 1, 0}, /* CS2 */
{ pinmux(7), 0, 1}, /* CS3 in three state*/
{ pinmux(7), 1, 4 }, /* EMA_WE */
{ pinmux(7), 1, 5 }, /* EMA_OE */
{ pinmux(9), 1, 0 }, /* EMA_D[7] */
{ pinmux(9), 1, 1 }, /* EMA_D[6] */
{ pinmux(9), 1, 2 }, /* EMA_D[5] */
{ pinmux(9), 1, 3 }, /* EMA_D[4] */
{ pinmux(9), 1, 4 }, /* EMA_D[3] */
{ pinmux(9), 1, 5 }, /* EMA_D[2] */
{ pinmux(9), 1, 6 }, /* EMA_D[1] */
{ pinmux(9), 1, 7 }, /* EMA_D[0] */
{ pinmux(12), 1, 5 }, /* EMA_A[2] */
{ pinmux(12), 1, 6 }, /* EMA_A[1] */
{ pinmux(6), 1, 0 } /* EMA_CLK */
};
#endif
@ -143,20 +144,20 @@ int board_init(void)
irq_init();
#endif
#ifdef CONFIG_NAND_DAVINCI
/*
* NAND CS setup - cycle counts based on da850evm NAND timings in the
* Linux kernel @ 25MHz EMIFA
*/
#ifdef CONFIG_NAND_DAVINCI
writel((DAVINCI_ABCR_WSETUP(0) |
DAVINCI_ABCR_WSTROBE(0) |
DAVINCI_ABCR_WSTROBE(1) |
DAVINCI_ABCR_WHOLD(0) |
DAVINCI_ABCR_RSETUP(0) |
DAVINCI_ABCR_RSTROBE(1) |
DAVINCI_ABCR_RHOLD(0) |
DAVINCI_ABCR_TA(0) |
DAVINCI_ABCR_ASIZE_8BIT),
&davinci_emif_regs->ab2cr); /* CS3 */
&davinci_emif_regs->ab1cr); /* CS2 */
#endif
/* arch number of the board */

20
include/configs/ea20.h
View file

@ -28,6 +28,7 @@
*/
#define CONFIG_DRIVER_TI_EMAC
#define CONFIG_USE_SPIFLASH
#define CONFIG_SYS_USE_NAND
#define CONFIG_DRIVER_TI_EMAC_USE_RMII
/*
@ -99,7 +100,7 @@
#undef CONFIG_ENV_IS_IN_NAND
#define CONFIG_ENV_IS_IN_SPI_FLASH
#define CONFIG_ENV_SIZE (8 << 10)
#define CONFIG_ENV_OFFSET (256 << 10)
#define CONFIG_ENV_OFFSET 0x80000
#define CONFIG_ENV_SECT_SIZE (64 << 10)
#define CONFIG_SYS_NO_FLASH
#endif
@ -151,7 +152,8 @@
#undef CONFIG_CMD_PING
#endif
#ifdef CONFIG_USE_NAND
/* NAND Setup */
#ifdef CONFIG_SYS_USE_NAND
#undef CONFIG_CMD_FLASH
#undef CONFIG_CMD_IMLS
#define CONFIG_CMD_NAND
@ -163,8 +165,20 @@
#define CONFIG_RBTREE
#define CONFIG_CMD_UBI
#define CONFIG_CMD_UBIFS
#define CONFIG_NAND_DAVINCI
#define CONFIG_SYS_NAND_PAGE_2K
#define CONFIG_SYS_NAND_CS 2
#define CONFIG_SYS_NAND_BASE DAVINCI_ASYNC_EMIF_DATA_CE2_BASE
#undef CONFIG_SYS_NAND_HW_ECC
#define CONFIG_SYS_NAND_4BIT_HW_ECC_OOBFIRST
#define CONFIG_SYS_NAND_USE_FLASH_BBT
#define CONFIG_SYS_MAX_NAND_DEVICE 1 /* Max number of NAND devices */
#define NAND_MAX_CHIPS 1
#define CONFIG_SYS_64BIT_VSPRINTF /* needed for nand_util.c */
#endif
/* SPI Flash */
#ifdef CONFIG_USE_SPIFLASH
#undef CONFIG_CMD_IMLS
#undef CONFIG_CMD_FLASH
@ -173,7 +187,7 @@
#define CONFIG_CMD_SAVEENV
#endif
#if !defined(CONFIG_USE_NAND) && \
#if !defined(CONFIG_SYS_USE_NAND) && \
!defined(CONFIG_USE_NOR) && \
!defined(CONFIG_USE_SPIFLASH)
#define CONFIG_ENV_IS_NOWHERE