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https://github.com/brain-hackers/u-boot-brain
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0cd10c7abf
Rename board provided gpio_config_uart() to gpio_early_init_uart() as it does the same thing as the equally called function provided by the uart-switch code. This allows to simply call this function in early board init whether or not we are building with CONFIG_UART_SWITCH defined. Also provide a weak symbol for this function, to avoid the need to provide this function for boards that don't need any fixup. This patch supersedes the earlier posted "tegra: convert gpio_config_uart to weak symbol". Build tested with MAKEALL -s tegra20 Signed-off-by: Lucas Stach <dev@lynxeye.de> Acked-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
78 lines
2.1 KiB
C
78 lines
2.1 KiB
C
/*
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* (C) Copyright 2010,2011
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* NVIDIA Corporation <www.nvidia.com>
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* (C) Copyright 2011-2012
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* Avionic Design GmbH <www.avionic-design.de>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <ns16550.h>
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#include <asm/io.h>
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#include <asm/gpio.h>
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#include <asm/arch/clock.h>
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#include <asm/arch/funcmux.h>
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#include <asm/arch/pinmux.h>
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#include <asm/arch/tegra.h>
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#include <asm/arch-tegra/board.h>
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#include <asm/arch-tegra/clk_rst.h>
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#include <asm/arch-tegra/mmc.h>
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#include <asm/arch-tegra/sys_proto.h>
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#include <asm/arch-tegra/uart.h>
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#ifdef CONFIG_TEGRA_MMC
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#include <mmc.h>
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#endif
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#ifdef CONFIG_BOARD_EARLY_INIT_F
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void gpio_early_init(void)
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{
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gpio_request(GPIO_PI4, NULL);
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gpio_direction_output(GPIO_PI4, 1);
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}
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#endif
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#ifdef CONFIG_TEGRA_MMC
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/*
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* Routine: pin_mux_mmc
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* Description: setup the pin muxes/tristate values for the SDMMC(s)
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*/
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static void pin_mux_mmc(void)
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{
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funcmux_select(PERIPH_ID_SDMMC4, FUNCMUX_SDMMC4_ATB_GMA_GME_8_BIT);
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/* for write-protect GPIO PI6 */
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pinmux_tristate_disable(PINGRP_ATA);
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/* for CD GPIO PH2 */
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pinmux_tristate_disable(PINGRP_ATD);
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}
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/* this is a weak define that we are overriding */
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int board_mmc_init(bd_t *bd)
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{
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/* Enable muxes, etc. for SDMMC controllers */
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pin_mux_mmc();
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/* init dev 0, SD slot, with 4-bit bus */
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tegra_mmc_init(0, 4, GPIO_PI6, GPIO_PH2);
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return 0;
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}
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#endif
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