From c0720afbb56f91fd33fb5b4e564e1037809c6304 Mon Sep 17 00:00:00 2001
From: Lucas Stach <dev@lynxeye.de>
Date: Sat, 29 Sep 2012 10:02:09 +0000
Subject: [PATCH] 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>
---
arch/arm/include/asm/arch-tegra/board.h | 1 +
board/nvidia/common/board.c | 12 ++++++++++++
drivers/mtd/nand/tegra_nand.c | 1 -
3 files changed, 13 insertions(+), 1 deletion(-)
diff --git a/arch/arm/include/asm/arch-tegra/board.h b/arch/arm/include/asm/arch-tegra/board.h
index 7e56df78b1..be6bf25f0b 100644
--- a/arch/arm/include/asm/arch-tegra/board.h
+++ b/arch/arm/include/asm/arch-tegra/board.h
@@ -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
diff --git a/board/nvidia/common/board.c b/board/nvidia/common/board.c
index dc301e741b..2c7cd0d401 100644
--- a/board/nvidia/common/board.c
+++ b/board/nvidia/common/board.c
@@ -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();
diff --git a/drivers/mtd/nand/tegra_nand.c b/drivers/mtd/nand/tegra_nand.c
index 2c1b533bb0..5408c51ffb 100644
--- a/drivers/mtd/nand/tegra_nand.c
+++ b/drivers/mtd/nand/tegra_nand.c
@@ -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);
--
2.39.5