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tegra: nand: add board pinmux 

Boards may require a different pinmux setup for NAND than the default one.
Add a way to call into board specific code to set this up.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Tom Warren <twarren@nvidia.com>
This commit is contained in:
Lucas Stach 2012-09-29 10:02:09 +00:00 committed by Tom Rini
parent 516f00b324
commit c0720afbb5
3 changed files with 13 additions and 1 deletions
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1
arch/arm/include/asm/arch-tegra/board.h
View File

@ -43,5 +43,6 @@ void gpio_early_init(void); /* overrideable GPIO config */
void pin_mux_usb(void); /* overrideable USB pinmux setup */
void pin_mux_spi(void); /* overrideable SPI pinmux setup */
void pin_mux_nand(void); /* overrideable NAND pinmux setup */
#endif

12
board/nvidia/common/board.c
View File

@ -27,6 +27,7 @@
#include <asm/io.h>
#include <asm/arch/clock.h>
#include <asm/arch/emc.h>
#include <asm/arch/funcmux.h>
#include <asm/arch/pinmux.h>
#include <asm/arch/pmu.h>
#include <asm/arch/tegra.h>
@ -77,6 +78,13 @@ void __gpio_early_init_uart(void)
void gpio_early_init_uart(void)
__attribute__((weak, alias("__gpio_early_init_uart")));
void __pin_mux_nand(void)
{
funcmux_select(PERIPH_ID_NDFLASH, FUNCMUX_DEFAULT);
}
void pin_mux_nand(void) __attribute__((weak, alias("__pin_mux_nand")));
/*
* Routine: power_det_init
* Description: turn off power detects
@ -137,6 +145,10 @@ int board_init(void)
board_usb_init(gd->fdt_blob);
#endif
#ifdef CONFIG_TEGRA_NAND
pin_mux_nand();
#endif
#ifdef CONFIG_TEGRA_LP0
/* save Sdram params to PMC 2, 4, and 24 for WB0 */
warmboot_save_sdram_params();

1
drivers/mtd/nand/tegra_nand.c
View File

@ -992,7 +992,6 @@ int tegra_nand_init(struct nand_chip *nand, int devnum)
/* Adjust timing for NAND device */
setup_timing(config->timing, info->reg);
funcmux_select(PERIPH_ID_NDFLASH, FUNCMUX_DEFAULT);
fdtdec_setup_gpio(&config->wp_gpio);
gpio_direction_output(config->wp_gpio.gpio, 1);