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
52 #ifndef CONFIG_SPL_BUILD
55 * Description: init the timestamp and lastinc value
63 void __pin_mux_usb(void)
67 void pin_mux_usb(void) __attribute__((weak, alias("__pin_mux_usb")));
69 void __pin_mux_spi(void)
73 void pin_mux_spi(void) __attribute__((weak, alias("__pin_mux_spi")));
76 * Routine: power_det_init
77 * Description: turn off power detects
79 static void power_det_init(void)
81 #if defined(CONFIG_TEGRA20)
82 struct pmc_ctlr *const pmc = (struct pmc_ctlr *)TEGRA20_PMC_BASE;
84 /* turn off power detects */
85 writel(0, &pmc->pmc_pwr_det_latch);
86 writel(0, &pmc->pmc_pwr_det);
92 * Description: Early hardware init.
96 __maybe_unused int err;
98 /* Do clocks and UART first so that printf() works */
102 #ifdef CONFIG_SPI_UART_SWITCH
105 #ifdef CONFIG_TEGRA_SPI
109 /* boot param addr */
110 gd->bd->bi_boot_params = (NV_PA_SDRAM_BASE + 0x100);
114 #ifdef CONFIG_TEGRA_I2C
115 #ifndef CONFIG_SYS_I2C_INIT_BOARD
116 #error "You must define CONFIG_SYS_I2C_INIT_BOARD to use i2c on Nvidia boards"
119 # ifdef CONFIG_TEGRA_PMU
120 if (pmu_set_nominal())
121 debug("Failed to select nominal voltages\n");
122 # ifdef CONFIG_TEGRA_CLOCK_SCALING
123 err = board_emc_init();
125 debug("Memory controller init failed: %d\n", err);
127 # endif /* CONFIG_TEGRA_PMU */
128 #endif /* CONFIG_TEGRA_I2C */
130 #ifdef CONFIG_USB_EHCI_TEGRA
132 board_usb_init(gd->fdt_blob);
135 #ifdef CONFIG_TEGRA20_LP0
136 /* save Sdram params to PMC 2, 4, and 24 for WB0 */
137 warmboot_save_sdram_params();
139 /* prepare the WB code to LP0 location */
140 warmboot_prepare_code(TEGRA_LP0_ADDR, TEGRA_LP0_SIZE);
146 #ifdef CONFIG_BOARD_EARLY_INIT_F
147 static void __gpio_early_init(void)
151 void gpio_early_init(void) __attribute__((weak, alias("__gpio_early_init")));
153 int board_early_init_f(void)
157 /* Initialize periph GPIOs */
159 #ifdef CONFIG_SPI_UART_SWITCH
160 gpio_early_init_uart();
166 #endif /* EARLY_INIT */