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/tegra2.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 tegra2_sysinfo sysinfo = {
49 CONFIG_TEGRA2_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")));
68 * Routine: power_det_init
69 * Description: turn off power detects
71 static void power_det_init(void)
73 #if defined(CONFIG_TEGRA2)
74 struct pmc_ctlr *const pmc = (struct pmc_ctlr *)TEGRA2_PMC_BASE;
76 /* turn off power detects */
77 writel(0, &pmc->pmc_pwr_det_latch);
78 writel(0, &pmc->pmc_pwr_det);
84 * Description: Early hardware init.
88 __maybe_unused int err;
90 /* Do clocks and UART first so that printf() works */
94 #ifdef CONFIG_SPI_UART_SWITCH
97 #ifdef CONFIG_TEGRA_SPI
100 /* boot param addr */
101 gd->bd->bi_boot_params = (NV_PA_SDRAM_BASE + 0x100);
105 #ifdef CONFIG_TEGRA_I2C
106 #ifndef CONFIG_SYS_I2C_INIT_BOARD
107 #error "You must define CONFIG_SYS_I2C_INIT_BOARD to use i2c on Nvidia boards"
110 # ifdef CONFIG_TEGRA_PMU
111 if (pmu_set_nominal())
112 debug("Failed to select nominal voltages\n");
113 # ifdef CONFIG_TEGRA_CLOCK_SCALING
114 err = board_emc_init();
116 debug("Memory controller init failed: %d\n", err);
118 # endif /* CONFIG_TEGRA_PMU */
119 #endif /* CONFIG_TEGRA_I2C */
121 #ifdef CONFIG_USB_EHCI_TEGRA
123 board_usb_init(gd->fdt_blob);
126 #ifdef CONFIG_TEGRA2_LP0
127 /* prepare the WB code to LP0 location */
128 warmboot_prepare_code(TEGRA_LP0_ADDR, TEGRA_LP0_SIZE);
134 #ifdef CONFIG_BOARD_EARLY_INIT_F
135 static void __gpio_early_init(void)
139 void gpio_early_init(void) __attribute__((weak, alias("__gpio_early_init")));
141 int board_early_init_f(void)
145 /* Initialize periph GPIOs */
147 #ifdef CONFIG_SPI_UART_SWITCH
148 gpio_early_init_uart();
154 #endif /* EARLY_INIT */