2 * (C) Copyright 2010,2011
3 * NVIDIA Corporation <www.nvidia.com>
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
26 #include <linux/compiler.h>
28 #include <asm/arch/tegra20.h>
29 #include <asm/arch/sys_proto.h>
31 #include <asm/arch/board.h>
32 #include <asm/arch/clk_rst.h>
33 #include <asm/arch/clock.h>
34 #include <asm/arch/emc.h>
35 #include <asm/arch/pinmux.h>
36 #include <asm/arch/pmc.h>
37 #include <asm/arch/pmu.h>
38 #include <asm/arch/uart.h>
39 #include <asm/arch/warmboot.h>
41 #include <asm/arch/usb.h>
46 DECLARE_GLOBAL_DATA_PTR;
48 const struct tegra20_sysinfo sysinfo = {
49 CONFIG_TEGRA20_BOARD_STRING
54 * Description: init the timestamp and lastinc value
61 void __pin_mux_usb(void)
65 void pin_mux_usb(void) __attribute__((weak, alias("__pin_mux_usb")));
67 void __pin_mux_spi(void)
71 void pin_mux_spi(void) __attribute__((weak, alias("__pin_mux_spi")));
74 * Routine: power_det_init
75 * Description: turn off power detects
77 static void power_det_init(void)
79 #if defined(CONFIG_TEGRA20)
80 struct pmc_ctlr *const pmc = (struct pmc_ctlr *)TEGRA20_PMC_BASE;
82 /* turn off power detects */
83 writel(0, &pmc->pmc_pwr_det_latch);
84 writel(0, &pmc->pmc_pwr_det);
90 * Description: Early hardware init.
94 __maybe_unused int err;
96 /* Do clocks and UART first so that printf() works */
100 #ifdef CONFIG_SPI_UART_SWITCH
103 #ifdef CONFIG_TEGRA_SPI
107 /* boot param addr */
108 gd->bd->bi_boot_params = (NV_PA_SDRAM_BASE + 0x100);
112 #ifdef CONFIG_TEGRA_I2C
113 #ifndef CONFIG_SYS_I2C_INIT_BOARD
114 #error "You must define CONFIG_SYS_I2C_INIT_BOARD to use i2c on Nvidia boards"
117 # ifdef CONFIG_TEGRA_PMU
118 if (pmu_set_nominal())
119 debug("Failed to select nominal voltages\n");
120 # ifdef CONFIG_TEGRA_CLOCK_SCALING
121 err = board_emc_init();
123 debug("Memory controller init failed: %d\n", err);
125 # endif /* CONFIG_TEGRA_PMU */
126 #endif /* CONFIG_TEGRA_I2C */
128 #ifdef CONFIG_USB_EHCI_TEGRA
130 board_usb_init(gd->fdt_blob);
133 #ifdef CONFIG_TEGRA20_LP0
134 /* prepare the WB code to LP0 location */
135 warmboot_prepare_code(TEGRA_LP0_ADDR, TEGRA_LP0_SIZE);
141 #ifdef CONFIG_BOARD_EARLY_INIT_F
142 static void __gpio_early_init(void)
146 void gpio_early_init(void) __attribute__((weak, alias("__gpio_early_init")));
148 int board_early_init_f(void)
152 /* Initialize periph GPIOs */
154 #ifdef CONFIG_SPI_UART_SWITCH
155 gpio_early_init_uart();
161 #endif /* EARLY_INIT */