board/nvidia/common/board.c

   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>
  26 #include <linux/compiler.h>
  27 #include <asm/io.h>
  28 #include <asm/arch/clock.h>
  29 #ifdef CONFIG_LCD
  30 #include <asm/arch/display.h>
  31 #endif
  32 #include <asm/arch/funcmux.h>
  33 #include <asm/arch/pinmux.h>
  34 #include <asm/arch/pmu.h>
  35 #ifdef CONFIG_PWM_TEGRA
  36 #include <asm/arch/pwm.h>
  37 #endif
  38 #include <asm/arch/tegra.h>
  39 #include <asm/arch-tegra/board.h>
  40 #include <asm/arch-tegra/clk_rst.h>
  41 #include <asm/arch-tegra/pmc.h>
  42 #include <asm/arch-tegra/sys_proto.h>
  43 #include <asm/arch-tegra/uart.h>
  44 #include <asm/arch-tegra/warmboot.h>
  45 #ifdef CONFIG_TEGRA_CLOCK_SCALING
  46 #include <asm/arch/emc.h>
  47 #endif
  48 #ifdef CONFIG_USB_EHCI_TEGRA
  49 #include <asm/arch-tegra/usb.h>
  50 #endif
  51 #ifdef CONFIG_TEGRA_MMC
  52 #include <asm/arch-tegra/mmc.h>
  53 #endif
  54 #include <i2c.h>
  55 #include <spi.h>
  56 #include "emc.h"
  57
  58 DECLARE_GLOBAL_DATA_PTR;
  59
  60 const struct tegra_sysinfo sysinfo = {
  61         CONFIG_TEGRA_BOARD_STRING
  62 };
  63
  64 #ifndef CONFIG_SPL_BUILD
  65 /*
  66  * Routine: timer_init
  67  * Description: init the timestamp and lastinc value
  68  */
  69 int timer_init(void)
  70 {
  71         return 0;
  72 }
  73 #endif
  74
  75 void __pin_mux_usb(void)
  76 {
  77 }
  78
  79 void pin_mux_usb(void) __attribute__((weak, alias("__pin_mux_usb")));
  80
  81 void __pin_mux_spi(void)
  82 {
  83 }
  84
  85 void pin_mux_spi(void) __attribute__((weak, alias("__pin_mux_spi")));
  86
  87 void __gpio_early_init_uart(void)
  88 {
  89 }
  90
  91 void gpio_early_init_uart(void)
  92 __attribute__((weak, alias("__gpio_early_init_uart")));
  93
  94 void __pin_mux_nand(void)
  95 {
  96         funcmux_select(PERIPH_ID_NDFLASH, FUNCMUX_DEFAULT);
  97 }
  98
  99 void pin_mux_nand(void) __attribute__((weak, alias("__pin_mux_nand")));
 100
 101 void __pin_mux_display(void)
 102 {
 103 }
 104
 105 void pin_mux_display(void) __attribute__((weak, alias("__pin_mux_display")));
 106
 107 /*
 108  * Routine: power_det_init
 109  * Description: turn off power detects
 110  */
 111 static void power_det_init(void)
 112 {
 113 #if defined(CONFIG_TEGRA20)
 114         struct pmc_ctlr *const pmc = (struct pmc_ctlr *)NV_PA_PMC_BASE;
 115
 116         /* turn off power detects */
 117         writel(0, &pmc->pmc_pwr_det_latch);
 118         writel(0, &pmc->pmc_pwr_det);
 119 #endif
 120 }
 121
 122 /*
 123  * Routine: board_init
 124  * Description: Early hardware init.
 125  */
 126 int board_init(void)
 127 {
 128         __maybe_unused int err;
 129
 130         /* Do clocks and UART first so that printf() works */
 131         clock_init();
 132         clock_verify();
 133
 134 #ifdef CONFIG_SPI_UART_SWITCH
 135         gpio_config_uart();
 136 #endif
 137 #if defined(CONFIG_TEGRA_SPI) || defined(CONFIG_TEGRA_SLINK)
 138         pin_mux_spi();
 139         spi_init();
 140 #endif
 141
 142 #ifdef CONFIG_PWM_TEGRA
 143         if (pwm_init(gd->fdt_blob))
 144                 debug("%s: Failed to init pwm\n", __func__);
 145 #endif
 146 #ifdef CONFIG_LCD
 147         pin_mux_display();
 148         tegra_lcd_check_next_stage(gd->fdt_blob, 0);
 149 #endif
 150         /* boot param addr */
 151         gd->bd->bi_boot_params = (NV_PA_SDRAM_BASE + 0x100);
 152
 153         power_det_init();
 154
 155 #ifdef CONFIG_TEGRA_I2C
 156 #ifndef CONFIG_SYS_I2C_INIT_BOARD
 157 #error "You must define CONFIG_SYS_I2C_INIT_BOARD to use i2c on Nvidia boards"
 158 #endif
 159         i2c_init_board();
 160 # ifdef CONFIG_TEGRA_PMU
 161         if (pmu_set_nominal())
 162                 debug("Failed to select nominal voltages\n");
 163 #  ifdef CONFIG_TEGRA_CLOCK_SCALING
 164         err = board_emc_init();
 165         if (err)
 166                 debug("Memory controller init failed: %d\n", err);
 167 #  endif
 168 # endif /* CONFIG_TEGRA_PMU */
 169 #endif /* CONFIG_TEGRA_I2C */
 170
 171 #ifdef CONFIG_USB_EHCI_TEGRA
 172         pin_mux_usb();
 173         board_usb_init(gd->fdt_blob);
 174 #endif
 175 #ifdef CONFIG_LCD
 176         tegra_lcd_check_next_stage(gd->fdt_blob, 0);
 177 #endif
 178
 179 #ifdef CONFIG_TEGRA_NAND
 180         pin_mux_nand();
 181 #endif
 182
 183 #ifdef CONFIG_TEGRA_LP0
 184         /* save Sdram params to PMC 2, 4, and 24 for WB0 */
 185         warmboot_save_sdram_params();
 186
 187         /* prepare the WB code to LP0 location */
 188         warmboot_prepare_code(TEGRA_LP0_ADDR, TEGRA_LP0_SIZE);
 189 #endif
 190
 191         return 0;
 192 }
 193
 194 #ifdef CONFIG_BOARD_EARLY_INIT_F
 195 static void __gpio_early_init(void)
 196 {
 197 }
 198
 199 void gpio_early_init(void) __attribute__((weak, alias("__gpio_early_init")));
 200
 201 int board_early_init_f(void)
 202 {
 203 #if !defined(CONFIG_TEGRA20)
 204         pinmux_init();
 205 #endif
 206         board_init_uart_f();
 207
 208         /* Initialize periph GPIOs */
 209         gpio_early_init();
 210         gpio_early_init_uart();
 211 #ifdef CONFIG_LCD
 212         tegra_lcd_early_init(gd->fdt_blob);
 213 #endif
 214
 215         return 0;
 216 }
 217 #endif  /* EARLY_INIT */
 218
 219 int board_late_init(void)
 220 {
 221 #ifdef CONFIG_LCD
 222         /* Make sure we finish initing the LCD */
 223         tegra_lcd_check_next_stage(gd->fdt_blob, 1);
 224 #endif
 225         return 0;
 226 }
 227
 228 #if defined(CONFIG_TEGRA_MMC)
 229 void __pin_mux_mmc(void)
 230 {
 231 }
 232
 233 void pin_mux_mmc(void) __attribute__((weak, alias("__pin_mux_mmc")));
 234
 235 /* this is a weak define that we are overriding */
 236 int board_mmc_init(bd_t *bd)
 237 {
 238         debug("%s called\n", __func__);
 239
 240         /* Enable muxes, etc. for SDMMC controllers */
 241         pin_mux_mmc();
 242
 243         debug("%s: init MMC\n", __func__);
 244         tegra_mmc_init();
 245
 246         return 0;
 247 }
 248 #endif