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https://github.com/AsahiLinux/u-boot
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e028494887
Boards can override this to set up the pinmux correctly to access serial flash. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
161 lines
3.5 KiB
C
161 lines
3.5 KiB
C
/*
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* (C) Copyright 2010,2011
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* NVIDIA Corporation <www.nvidia.com>
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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 <linux/compiler.h>
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#include <asm/io.h>
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#include <asm/arch/tegra2.h>
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#include <asm/arch/sys_proto.h>
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#include <asm/arch/board.h>
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#include <asm/arch/clk_rst.h>
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#include <asm/arch/clock.h>
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#include <asm/arch/emc.h>
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#include <asm/arch/pinmux.h>
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#include <asm/arch/pmc.h>
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#include <asm/arch/pmu.h>
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#include <asm/arch/uart.h>
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#include <asm/arch/warmboot.h>
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#include <spi.h>
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#include <asm/arch/usb.h>
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#include <i2c.h>
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#include "board.h"
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#include "emc.h"
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DECLARE_GLOBAL_DATA_PTR;
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const struct tegra2_sysinfo sysinfo = {
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CONFIG_TEGRA2_BOARD_STRING
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};
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/*
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* Routine: timer_init
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* Description: init the timestamp and lastinc value
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*/
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int timer_init(void)
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{
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return 0;
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}
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void __pin_mux_usb(void)
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{
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}
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void pin_mux_usb(void) __attribute__((weak, alias("__pin_mux_usb")));
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void __pin_mux_spi(void)
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{
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}
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void pin_mux_spi(void) __attribute__((weak, alias("__pin_mux_spi")));
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/*
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* Routine: power_det_init
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* Description: turn off power detects
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*/
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static void power_det_init(void)
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{
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#if defined(CONFIG_TEGRA2)
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struct pmc_ctlr *const pmc = (struct pmc_ctlr *)TEGRA2_PMC_BASE;
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/* turn off power detects */
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writel(0, &pmc->pmc_pwr_det_latch);
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writel(0, &pmc->pmc_pwr_det);
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#endif
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}
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/*
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* Routine: board_init
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* Description: Early hardware init.
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*/
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int board_init(void)
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{
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__maybe_unused int err;
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/* Do clocks and UART first so that printf() works */
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clock_init();
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clock_verify();
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#ifdef CONFIG_SPI_UART_SWITCH
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gpio_config_uart();
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#endif
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#ifdef CONFIG_TEGRA_SPI
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pin_mux_spi();
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spi_init();
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#endif
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/* boot param addr */
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gd->bd->bi_boot_params = (NV_PA_SDRAM_BASE + 0x100);
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power_det_init();
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#ifdef CONFIG_TEGRA_I2C
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#ifndef CONFIG_SYS_I2C_INIT_BOARD
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#error "You must define CONFIG_SYS_I2C_INIT_BOARD to use i2c on Nvidia boards"
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#endif
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i2c_init_board();
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# ifdef CONFIG_TEGRA_PMU
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if (pmu_set_nominal())
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debug("Failed to select nominal voltages\n");
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# ifdef CONFIG_TEGRA_CLOCK_SCALING
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err = board_emc_init();
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if (err)
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debug("Memory controller init failed: %d\n", err);
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# endif
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# endif /* CONFIG_TEGRA_PMU */
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#endif /* CONFIG_TEGRA_I2C */
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#ifdef CONFIG_USB_EHCI_TEGRA
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pin_mux_usb();
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board_usb_init(gd->fdt_blob);
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#endif
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#ifdef CONFIG_TEGRA2_LP0
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/* prepare the WB code to LP0 location */
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warmboot_prepare_code(TEGRA_LP0_ADDR, TEGRA_LP0_SIZE);
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#endif
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return 0;
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}
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#ifdef CONFIG_BOARD_EARLY_INIT_F
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static void __gpio_early_init(void)
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{
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}
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void gpio_early_init(void) __attribute__((weak, alias("__gpio_early_init")));
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int board_early_init_f(void)
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{
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board_init_uart_f();
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/* Initialize periph GPIOs */
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gpio_early_init();
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#ifdef CONFIG_SPI_UART_SWITCH
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gpio_early_init_uart();
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#else
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gpio_config_uart();
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#endif
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return 0;
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}
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#endif /* EARLY_INIT */
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