|  | // SPDX-License-Identifier: GPL-2.0+ | 
|  | /* | 
|  | *  (C) Copyright 2010,2011 | 
|  | *  NVIDIA Corporation <www.nvidia.com> | 
|  | *  (C) Copyright 2011-2012 | 
|  | *  Avionic Design GmbH <www.avionic-design.de> | 
|  | */ | 
|  |  | 
|  | #include <common.h> | 
|  | #include <ns16550.h> | 
|  | #include <asm/io.h> | 
|  | #include <asm/gpio.h> | 
|  | #include <asm/arch/clock.h> | 
|  | #include <asm/arch/funcmux.h> | 
|  | #include <asm/arch/pinmux.h> | 
|  | #include <asm/arch/tegra.h> | 
|  | #include <asm/arch-tegra/board.h> | 
|  | #include <asm/arch-tegra/clk_rst.h> | 
|  | #include <asm/arch-tegra/sys_proto.h> | 
|  | #include <asm/arch-tegra/uart.h> | 
|  |  | 
|  | #ifdef CONFIG_BOARD_EARLY_INIT_F | 
|  | void gpio_early_init(void) | 
|  | { | 
|  | gpio_request(TEGRA_GPIO(I, 4), NULL); | 
|  | gpio_direction_output(TEGRA_GPIO(I, 4), 1); | 
|  | } | 
|  | #endif | 
|  |  | 
|  | #ifdef CONFIG_MMC_SDHCI_TEGRA | 
|  | /* | 
|  | * Routine: pin_mux_mmc | 
|  | * Description: setup the pin muxes/tristate values for the SDMMC(s) | 
|  | */ | 
|  | void pin_mux_mmc(void) | 
|  | { | 
|  | funcmux_select(PERIPH_ID_SDMMC4, FUNCMUX_SDMMC4_ATB_GMA_GME_8_BIT); | 
|  | /* for write-protect GPIO PI6 */ | 
|  | pinmux_tristate_disable(PMUX_PINGRP_ATA); | 
|  | /* for CD GPIO PH2 */ | 
|  | pinmux_tristate_disable(PMUX_PINGRP_ATD); | 
|  | } | 
|  | #endif |