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| author | Nick Thompson <nick.thompson@ge.com> | 2010-02-08 11:36:16 -0500 |
|---|---|---|
| committer | Tom Rix <Tom.Rix@windriver.com> | 2010-02-12 12:31:54 -0600 |
| commit | 3a4e43921d2599453ea87c623099e5f347c9e54a (patch) | |
| tree | 3c02c4476f71e39053313805c11eebca500f1bc5 /board/davinci/da830evm | |
| parent | 6228e6389e5ef472d5f43cc5ec4f309323305638 (diff) | |
| download | u-boot-imx-3a4e43921d2599453ea87c623099e5f347c9e54a.zip u-boot-imx-3a4e43921d2599453ea87c623099e5f347c9e54a.tar.gz u-boot-imx-3a4e43921d2599453ea87c623099e5f347c9e54a.tar.bz2 | |
DA830 EVM: Enable NAND support on Spectrum Digital EVM
The EVM UI extender card has a NAND device. This change will enable
saveenv to work with NAND and Linux to be booted using:
mtdparts default
nboot kernel
bootm
Signed-off-by: Nick Thompson <nick.thompson@ge.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
Diffstat (limited to 'board/davinci/da830evm')
| -rw-r--r-- | board/davinci/da830evm/da830evm.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/board/davinci/da830evm/da830evm.c b/board/davinci/da830evm/da830evm.c index 12df1f8..aac5c5c 100644 --- a/board/davinci/da830evm/da830evm.c +++ b/board/davinci/da830evm/da830evm.c @@ -35,6 +35,7 @@ #include <common.h> #include <i2c.h> #include <asm/arch/hardware.h> +#include <asm/arch/emif_defs.h> #include <asm/io.h> #include "../common/misc.h" @@ -51,6 +52,23 @@ static const struct pinmux_config spi0_pins[] = { { pinmux[7], 1, 7 } }; +/* EMIF-A bus pins for 8-bit NAND support on CS3 */ +static const struct pinmux_config emifa_nand_pins[] = { + { pinmux[13], 1, 6 }, + { pinmux[13], 1, 7 }, + { pinmux[14], 1, 0 }, + { pinmux[14], 1, 1 }, + { pinmux[14], 1, 2 }, + { pinmux[14], 1, 3 }, + { pinmux[14], 1, 4 }, + { pinmux[14], 1, 5 }, + { pinmux[15], 1, 7 }, + { pinmux[16], 1, 0 }, + { pinmux[18], 1, 1 }, + { pinmux[18], 1, 4 }, + { pinmux[18], 1, 5 }, +}; + /* UART pin muxer settings */ static const struct pinmux_config uart_pins[] = { { pinmux[8], 2, 7 }, @@ -77,6 +95,9 @@ static const struct pinmux_resource pinmuxes[] = { #ifdef CONFIG_USB_DA8XX PINMUX_ITEM(usb_pins), #endif +#ifdef CONFIG_USE_NAND + PINMUX_ITEM(emifa_nand_pins), +#endif }; int board_init(void) @@ -96,6 +117,22 @@ int board_init(void) writel(0xffffffff, &davinci_aintc_regs->ecr3); #endif +#ifdef CONFIG_NAND_DAVINCI + /* EMIFA 100MHz clock select */ + writel(readl(&davinci_syscfg_regs->cfgchip3) & ~2, + &davinci_syscfg_regs->cfgchip3); + /* NAND CS setup */ + writel((DAVINCI_ABCR_WSETUP(0) | + DAVINCI_ABCR_WSTROBE(2) | + DAVINCI_ABCR_WHOLD(0) | + DAVINCI_ABCR_RSETUP(0) | + DAVINCI_ABCR_RSTROBE(2) | + DAVINCI_ABCR_RHOLD(0) | + DAVINCI_ABCR_TA(2) | + DAVINCI_ABCR_ASIZE_8BIT), + &davinci_emif_regs->AB2CR); +#endif + /* arch number of the board */ gd->bd->bi_arch_number = MACH_TYPE_DAVINCI_DA830_EVM; |