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gerrit.devboardsforandroid.linaro.org / platform / external / u-boot / a49716aa7cda96f5e8cd15e57587da7a99f9e330 / . / board / nvidia / common / board.c
blob: 7ab20408e862ffc87e732f5944e1e5b02be4adf4 [file] [log] [blame]
Tom Warren3f82b1d2011-01-27 10:58:05 +0000[diff] [blame]1/*
2 * (C) Copyright 2010,2011
3 * NVIDIA Corporation <www.nvidia.com>
4 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
7 *
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.
12 *
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.
17 *
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,
21 * MA 02111-1307 USA
22 */
23
24#include <common.h>
25#include <ns16550.h>
Jimmy Zhangc5b34a22012-04-10 05:17:06 +0000[diff] [blame]26#include <linux/compiler.h>
Tom Warren3f82b1d2011-01-27 10:58:05 +0000[diff] [blame]27#include <asm/io.h>
Allen Martin00a27492012-08-31 08:30:00 +0000[diff] [blame]28#include <asm/arch/tegra20.h>
Tom Warren3f82b1d2011-01-27 10:58:05 +0000[diff] [blame]29#include <asm/arch/sys_proto.h>
30
Simon Glassf46a9452011-11-28 15:04:40 +0000[diff] [blame]31#include <asm/arch/board.h>
Tom Warren3f82b1d2011-01-27 10:58:05 +0000[diff] [blame]32#include <asm/arch/clk_rst.h>
Simon Glassb4ba2be2011-08-30 06:23:13 +0000[diff] [blame]33#include <asm/arch/clock.h>
Jimmy Zhangc5b34a22012-04-10 05:17:06 +0000[diff] [blame]34#include <asm/arch/emc.h>
Tom Warren3f82b1d2011-01-27 10:58:05 +0000[diff] [blame]35#include <asm/arch/pinmux.h>
Simon Glass87236262012-04-02 13:18:54 +0000[diff] [blame]36#include <asm/arch/pmc.h>
37#include <asm/arch/pmu.h>
Tom Warren3f82b1d2011-01-27 10:58:05 +0000[diff] [blame]38#include <asm/arch/uart.h>
Simon Glass67ac5792012-04-02 13:18:57 +0000[diff] [blame]39#include <asm/arch/warmboot.h>
Tom Warren9112ef82011-11-05 09:48:11 +0000[diff] [blame]40#include <spi.h>
Simon Glassf10393e2012-02-27 10:52:50 +0000[diff] [blame]41#include <asm/arch/usb.h>
Simon Glasscb445fb2012-02-03 15:13:57 +0000[diff] [blame]42#include <i2c.h>
Tom Warren74652cf2011-04-14 12:18:06 +0000[diff] [blame]43#include "board.h"
Jimmy Zhangc5b34a22012-04-10 05:17:06 +0000[diff] [blame]44#include "emc.h"
Tom Warren3f82b1d2011-01-27 10:58:05 +0000[diff] [blame]45
46DECLARE_GLOBAL_DATA_PTR;
47
Allen Martin00a27492012-08-31 08:30:00 +0000[diff] [blame]48const struct tegra20_sysinfo sysinfo = {
49 CONFIG_TEGRA20_BOARD_STRING
Tom Warren3f82b1d2011-01-27 10:58:05 +0000[diff] [blame]50};
51
Allen Martin45ec5b22012-08-31 08:30:08 +0000[diff] [blame]52#ifndef CONFIG_SPL_BUILD
Tom Warren3f82b1d2011-01-27 10:58:05 +0000[diff] [blame]53/*
54 * Routine: timer_init
55 * Description: init the timestamp and lastinc value
56 */
57int timer_init(void)
58{
Tom Warren3f82b1d2011-01-27 10:58:05 +0000[diff] [blame]59 return 0;
60}
Allen Martin45ec5b22012-08-31 08:30:08 +0000[diff] [blame]61#endif
Tom Warren3f82b1d2011-01-27 10:58:05 +0000[diff] [blame]62
Simon Glassf10393e2012-02-27 10:52:50 +0000[diff] [blame]63void __pin_mux_usb(void)
64{
65}
66
67void pin_mux_usb(void) __attribute__((weak, alias("__pin_mux_usb")));
68
Stephen Warrene0284942012-06-12 08:33:40 +0000[diff] [blame]69void __pin_mux_spi(void)
70{
71}
72
73void pin_mux_spi(void) __attribute__((weak, alias("__pin_mux_spi")));
74
Tom Warrenf4ef6662011-04-14 12:09:41 +0000[diff] [blame]75/*
Wei Ni5aff0212012-04-02 13:18:58 +0000[diff] [blame]76 * Routine: power_det_init
77 * Description: turn off power detects
78 */
79static void power_det_init(void)
80{
Allen Martin00a27492012-08-31 08:30:00 +0000[diff] [blame]81#if defined(CONFIG_TEGRA20)
82 struct pmc_ctlr *const pmc = (struct pmc_ctlr *)TEGRA20_PMC_BASE;
Wei Ni5aff0212012-04-02 13:18:58 +0000[diff] [blame]83
84 /* turn off power detects */
85 writel(0, &pmc->pmc_pwr_det_latch);
86 writel(0, &pmc->pmc_pwr_det);
87#endif
88}
89
90/*
Tom Warren3f82b1d2011-01-27 10:58:05 +0000[diff] [blame]91 * Routine: board_init
92 * Description: Early hardware init.
93 */
94int board_init(void)
95{
Jimmy Zhangc5b34a22012-04-10 05:17:06 +0000[diff] [blame]96 __maybe_unused int err;
97
Simon Glassa04eba92011-11-05 04:46:51 +0000[diff] [blame]98 /* Do clocks and UART first so that printf() works */
Simon Glass4ed59e72011-09-21 12:40:04 +0000[diff] [blame]99 clock_init();
100 clock_verify();
101
Simon Glassa04eba92011-11-05 04:46:51 +0000[diff] [blame]102#ifdef CONFIG_SPI_UART_SWITCH
103 gpio_config_uart();
104#endif
Tom Warren1e2d7852012-06-01 08:22:14 +0000[diff] [blame]105#ifdef CONFIG_TEGRA_SPI
Stephen Warrene0284942012-06-12 08:33:40 +0000[diff] [blame]106 pin_mux_spi();
Tom Warren9112ef82011-11-05 09:48:11 +0000[diff] [blame]107 spi_init();
108#endif
Tom Warren3f82b1d2011-01-27 10:58:05 +0000[diff] [blame]109 /* boot param addr */
110 gd->bd->bi_boot_params = (NV_PA_SDRAM_BASE + 0x100);
Wei Ni5aff0212012-04-02 13:18:58 +0000[diff] [blame]111
112 power_det_init();
113
Simon Glasscb445fb2012-02-03 15:13:57 +0000[diff] [blame]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"
117#endif
118 i2c_init_board();
Simon Glass87236262012-04-02 13:18:54 +0000[diff] [blame]119# ifdef CONFIG_TEGRA_PMU
120 if (pmu_set_nominal())
121 debug("Failed to select nominal voltages\n");
Jimmy Zhangc5b34a22012-04-10 05:17:06 +0000[diff] [blame]122# ifdef CONFIG_TEGRA_CLOCK_SCALING
123 err = board_emc_init();
124 if (err)
125 debug("Memory controller init failed: %d\n", err);
126# endif
127# endif /* CONFIG_TEGRA_PMU */
128#endif /* CONFIG_TEGRA_I2C */
Tom Warren3f82b1d2011-01-27 10:58:05 +0000[diff] [blame]129
Simon Glassf10393e2012-02-27 10:52:50 +0000[diff] [blame]130#ifdef CONFIG_USB_EHCI_TEGRA
131 pin_mux_usb();
132 board_usb_init(gd->fdt_blob);
133#endif
134
Allen Martin00a27492012-08-31 08:30:00 +0000[diff] [blame]135#ifdef CONFIG_TEGRA20_LP0
Allen Martina49716a2012-08-31 08:30:11 +0000[diff] [blame^]136 /* save Sdram params to PMC 2, 4, and 24 for WB0 */
137 warmboot_save_sdram_params();
138
Simon Glass67ac5792012-04-02 13:18:57 +0000[diff] [blame]139 /* prepare the WB code to LP0 location */
140 warmboot_prepare_code(TEGRA_LP0_ADDR, TEGRA_LP0_SIZE);
141#endif
142
Tom Warren3f82b1d2011-01-27 10:58:05 +0000[diff] [blame]143 return 0;
144}
Tom Warren21ef6a12011-05-31 10:30:37 +0000[diff] [blame]145
Simon Glass3e00dbd2011-09-21 12:40:03 +0000[diff] [blame]146#ifdef CONFIG_BOARD_EARLY_INIT_F
Thierry Redingcb7a1cf2012-06-04 20:02:27 +0000[diff] [blame]147static void __gpio_early_init(void)
148{
149}
150
151void gpio_early_init(void) __attribute__((weak, alias("__gpio_early_init")));
152
Simon Glass3e00dbd2011-09-21 12:40:03 +0000[diff] [blame]153int board_early_init_f(void)
154{
Simon Glassf46a9452011-11-28 15:04:40 +0000[diff] [blame]155 board_init_uart_f();
Simon Glass3e00dbd2011-09-21 12:40:03 +0000[diff] [blame]156
157 /* Initialize periph GPIOs */
Thierry Redingcb7a1cf2012-06-04 20:02:27 +0000[diff] [blame]158 gpio_early_init();
Simon Glassa04eba92011-11-05 04:46:51 +0000[diff] [blame]159#ifdef CONFIG_SPI_UART_SWITCH
160 gpio_early_init_uart();
161#else
Simon Glass3e00dbd2011-09-21 12:40:03 +0000[diff] [blame]162 gpio_config_uart();
Simon Glassa04eba92011-11-05 04:46:51 +0000[diff] [blame]163#endif
Simon Glass3e00dbd2011-09-21 12:40:03 +0000[diff] [blame]164 return 0;
165}
166#endif /* EARLY_INIT */