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/clock.h>
29 #include <asm/arch/emc.h>
30 #include <asm/arch/pinmux.h>
31 #include <asm/arch/pmu.h>
32 #include <asm/arch/tegra.h>
33 #include <asm/arch/usb.h>
34 #include <asm/arch-tegra/board.h>
35 #include <asm/arch-tegra/clk_rst.h>
36 #include <asm/arch-tegra/pmc.h>
37 #include <asm/arch-tegra/sys_proto.h>
38 #include <asm/arch-tegra/uart.h>
39 #include <asm/arch-tegra/warmboot.h>
44 DECLARE_GLOBAL_DATA_PTR;
46 const struct tegra_sysinfo sysinfo = {
47 CONFIG_TEGRA_BOARD_STRING
50 #ifndef CONFIG_SPL_BUILD
53 * 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")));
73 void __gpio_early_init_uart(void)
77 void gpio_early_init_uart(void)
78 __attribute__((weak, alias("__gpio_early_init_uart")));
81 * Routine: power_det_init
82 * Description: turn off power detects
84 static void power_det_init(void)
86 #if defined(CONFIG_TEGRA20)
87 struct pmc_ctlr *const pmc = (struct pmc_ctlr *)NV_PA_PMC_BASE;
89 /* turn off power detects */
90 writel(0, &pmc->pmc_pwr_det_latch);
91 writel(0, &pmc->pmc_pwr_det);
97 * Description: Early hardware init.
101 __maybe_unused int err;
103 /* Do clocks and UART first so that printf() works */
107 #ifdef CONFIG_SPI_UART_SWITCH
110 #ifdef CONFIG_TEGRA_SPI
114 /* boot param addr */
115 gd->bd->bi_boot_params = (NV_PA_SDRAM_BASE + 0x100);
119 #ifdef CONFIG_TEGRA_I2C
120 #ifndef CONFIG_SYS_I2C_INIT_BOARD
121 #error "You must define CONFIG_SYS_I2C_INIT_BOARD to use i2c on Nvidia boards"
124 # ifdef CONFIG_TEGRA_PMU
125 if (pmu_set_nominal())
126 debug("Failed to select nominal voltages\n");
127 # ifdef CONFIG_TEGRA_CLOCK_SCALING
128 err = board_emc_init();
130 debug("Memory controller init failed: %d\n", err);
132 # endif /* CONFIG_TEGRA_PMU */
133 #endif /* CONFIG_TEGRA_I2C */
135 #ifdef CONFIG_USB_EHCI_TEGRA
137 board_usb_init(gd->fdt_blob);
140 #ifdef CONFIG_TEGRA_LP0
141 /* save Sdram params to PMC 2, 4, and 24 for WB0 */
142 warmboot_save_sdram_params();
144 /* prepare the WB code to LP0 location */
145 warmboot_prepare_code(TEGRA_LP0_ADDR, TEGRA_LP0_SIZE);
151 #ifdef CONFIG_BOARD_EARLY_INIT_F
152 static void __gpio_early_init(void)
156 void gpio_early_init(void) __attribute__((weak, alias("__gpio_early_init")));
158 int board_early_init_f(void)
162 /* Initialize periph GPIOs */
164 gpio_early_init_uart();
168 #endif /* EARLY_INIT */