arch/arm/mach-tegra/board-dt-tegra20.c

   1 /*
   2  * nVidia Tegra device tree board support
   3  *
   4  * Copyright (C) 2010 Secret Lab Technologies, Ltd.
   5  * Copyright (C) 2010 Google, Inc.
   6  *
   7  * This software is licensed under the terms of the GNU General Public
   8  * License version 2, as published by the Free Software Foundation, and
   9  * may be copied, distributed, and modified under those terms.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  */
  17
  18 #include <linux/kernel.h>
  19 #include <linux/init.h>
  20 #include <linux/platform_device.h>
  21 #include <linux/serial_8250.h>
  22 #include <linux/clk.h>
  23 #include <linux/dma-mapping.h>
  24 #include <linux/irqdomain.h>
  25 #include <linux/of.h>
  26 #include <linux/of_address.h>
  27 #include <linux/of_fdt.h>
  28 #include <linux/of_platform.h>
  29 #include <linux/pda_power.h>
  30 #include <linux/platform_data/tegra_usb.h>
  31 #include <linux/io.h>
  32 #include <linux/i2c.h>
  33 #include <linux/i2c-tegra.h>
  34 #include <linux/usb/tegra_usb_phy.h>
  35
  36 #include <asm/mach-types.h>
  37 #include <asm/mach/arch.h>
  38 #include <asm/mach/time.h>
  39 #include <asm/setup.h>
  40
  41 #include "board.h"
  42 #include "clock.h"
  43 #include "common.h"
  44 #include "iomap.h"
  45
  46 struct tegra_ehci_platform_data tegra_ehci1_pdata = {
  47         .operating_mode = TEGRA_USB_OTG,
  48         .power_down_on_bus_suspend = 1,
  49         .vbus_gpio = -1,
  50 };
  51
  52 struct tegra_ulpi_config tegra_ehci2_ulpi_phy_config = {
  53         .reset_gpio = -1,
  54         .clk = "cdev2",
  55 };
  56
  57 struct tegra_ehci_platform_data tegra_ehci2_pdata = {
  58         .phy_config = &tegra_ehci2_ulpi_phy_config,
  59         .operating_mode = TEGRA_USB_HOST,
  60         .power_down_on_bus_suspend = 1,
  61         .vbus_gpio = -1,
  62 };
  63
  64 struct tegra_ehci_platform_data tegra_ehci3_pdata = {
  65         .operating_mode = TEGRA_USB_HOST,
  66         .power_down_on_bus_suspend = 1,
  67         .vbus_gpio = -1,
  68 };
  69
  70 struct of_dev_auxdata tegra20_auxdata_lookup[] __initdata = {
  71         OF_DEV_AUXDATA("nvidia,tegra20-sdhci", TEGRA_SDMMC1_BASE, "sdhci-tegra.0", NULL),
  72         OF_DEV_AUXDATA("nvidia,tegra20-sdhci", TEGRA_SDMMC2_BASE, "sdhci-tegra.1", NULL),
  73         OF_DEV_AUXDATA("nvidia,tegra20-sdhci", TEGRA_SDMMC3_BASE, "sdhci-tegra.2", NULL),
  74         OF_DEV_AUXDATA("nvidia,tegra20-sdhci", TEGRA_SDMMC4_BASE, "sdhci-tegra.3", NULL),
  75         OF_DEV_AUXDATA("nvidia,tegra20-i2c", TEGRA_I2C_BASE, "tegra-i2c.0", NULL),
  76         OF_DEV_AUXDATA("nvidia,tegra20-i2c", TEGRA_I2C2_BASE, "tegra-i2c.1", NULL),
  77         OF_DEV_AUXDATA("nvidia,tegra20-i2c", TEGRA_I2C3_BASE, "tegra-i2c.2", NULL),
  78         OF_DEV_AUXDATA("nvidia,tegra20-i2c-dvc", TEGRA_DVC_BASE, "tegra-i2c.3", NULL),
  79         OF_DEV_AUXDATA("nvidia,tegra20-i2s", TEGRA_I2S1_BASE, "tegra20-i2s.0", NULL),
  80         OF_DEV_AUXDATA("nvidia,tegra20-i2s", TEGRA_I2S2_BASE, "tegra20-i2s.1", NULL),
  81         OF_DEV_AUXDATA("nvidia,tegra20-das", TEGRA_APB_MISC_DAS_BASE, "tegra20-das", NULL),
  82         OF_DEV_AUXDATA("nvidia,tegra20-ehci", TEGRA_USB_BASE, "tegra-ehci.0",
  83                        &tegra_ehci1_pdata),
  84         OF_DEV_AUXDATA("nvidia,tegra20-ehci", TEGRA_USB2_BASE, "tegra-ehci.1",
  85                        &tegra_ehci2_pdata),
  86         OF_DEV_AUXDATA("nvidia,tegra20-ehci", TEGRA_USB3_BASE, "tegra-ehci.2",
  87                        &tegra_ehci3_pdata),
  88         OF_DEV_AUXDATA("nvidia,tegra20-apbdma", TEGRA_APB_DMA_BASE, "tegra-apbdma", NULL),
  89         OF_DEV_AUXDATA("nvidia,tegra20-pwm", TEGRA_PWFM_BASE, "tegra-pwm", NULL),
  90         OF_DEV_AUXDATA("nvidia,tegra20-sflash", 0x7000c380, "spi", NULL),
  91         OF_DEV_AUXDATA("nvidia,tegra20-slink", 0x7000D400, "spi_tegra.0", NULL),
  92         OF_DEV_AUXDATA("nvidia,tegra20-slink", 0x7000D600, "spi_tegra.1", NULL),
  93         OF_DEV_AUXDATA("nvidia,tegra20-slink", 0x7000D800, "spi_tegra.2", NULL),
  94         OF_DEV_AUXDATA("nvidia,tegra20-slink", 0x7000DA00, "spi_tegra.3", NULL),
  95         OF_DEV_AUXDATA("nvidia,tegra20-host1x", 0x50000000, "host1x", NULL),
  96         OF_DEV_AUXDATA("nvidia,tegra20-dc", 0x54200000, "tegradc.0", NULL),
  97         OF_DEV_AUXDATA("nvidia,tegra20-dc", 0x54240000, "tegradc.1", NULL),
  98         OF_DEV_AUXDATA("nvidia,tegra20-hdmi", 0x54280000, "hdmi", NULL),
  99         OF_DEV_AUXDATA("nvidia,tegra20-dsi", 0x54300000, "dsi", NULL),
 100         OF_DEV_AUXDATA("nvidia,tegra20-tvo", 0x542c0000, "tvo", NULL),
 101         {}
 102 };
 103
 104 static __initdata struct tegra_clk_init_table tegra_dt_clk_init_table[] = {
 105         /* name         parent          rate            enabled */
 106         { "uarta",      "pll_p",        216000000,      true },
 107         { "uartd",      "pll_p",        216000000,      true },
 108         { "usbd",       "clk_m",        12000000,       false },
 109         { "usb2",       "clk_m",        12000000,       false },
 110         { "usb3",       "clk_m",        12000000,       false },
 111         { "pll_a",      "pll_p_out1",   56448000,       true },
 112         { "pll_a_out0", "pll_a",        11289600,       true },
 113         { "cdev1",      NULL,           0,              true },
 114         { "blink",      "clk_32k",      32768,          true },
 115         { "i2s1",       "pll_a_out0",   11289600,       false},
 116         { "i2s2",       "pll_a_out0",   11289600,       false},
 117         { "sdmmc1",     "pll_p",        48000000,       false},
 118         { "sdmmc3",     "pll_p",        48000000,       false},
 119         { "sdmmc4",     "pll_p",        48000000,       false},
 120         { "spi",        "pll_p",        20000000,       false },
 121         { "sbc1",       "pll_p",        100000000,      false },
 122         { "sbc2",       "pll_p",        100000000,      false },
 123         { "sbc3",       "pll_p",        100000000,      false },
 124         { "sbc4",       "pll_p",        100000000,      false },
 125         { "host1x",     "pll_c",        150000000,      false },
 126         { "disp1",      "pll_p",        600000000,      false },
 127         { "disp2",      "pll_p",        600000000,      false },
 128         { NULL,         NULL,           0,              0},
 129 };
 130
 131 static void __init tegra_dt_init(void)
 132 {
 133         tegra_clk_init_from_table(tegra_dt_clk_init_table);
 134
 135         /*
 136          * Finished with the static registrations now; fill in the missing
 137          * devices
 138          */
 139         of_platform_populate(NULL, of_default_bus_match_table,
 140                                 tegra20_auxdata_lookup, NULL);
 141 }
 142
 143 static void __init trimslice_init(void)
 144 {
 145 #ifdef CONFIG_TEGRA_PCI
 146         int ret;
 147
 148         ret = tegra_pcie_init(true, true);
 149         if (ret)
 150                 pr_err("tegra_pci_init() failed: %d\n", ret);
 151 #endif
 152 }
 153
 154 static void __init harmony_init(void)
 155 {
 156 #ifdef CONFIG_TEGRA_PCI
 157         int ret;
 158
 159         ret = harmony_pcie_init();
 160         if (ret)
 161                 pr_err("harmony_pcie_init() failed: %d\n", ret);
 162 #endif
 163 }
 164
 165 static void __init paz00_init(void)
 166 {
 167         tegra_paz00_wifikill_init();
 168 }
 169
 170 static struct {
 171         char *machine;
 172         void (*init)(void);
 173 } board_init_funcs[] = {
 174         { "compulab,trimslice", trimslice_init },
 175         { "nvidia,harmony", harmony_init },
 176         { "compal,paz00", paz00_init },
 177 };
 178
 179 static void __init tegra_dt_init_late(void)
 180 {
 181         int i;
 182
 183         tegra_init_late();
 184
 185         for (i = 0; i < ARRAY_SIZE(board_init_funcs); i++) {
 186                 if (of_machine_is_compatible(board_init_funcs[i].machine)) {
 187                         board_init_funcs[i].init();
 188                         break;
 189                 }
 190         }
 191 }
 192
 193 static const char *tegra20_dt_board_compat[] = {
 194         "nvidia,tegra20",
 195         NULL
 196 };
 197
 198 DT_MACHINE_START(TEGRA_DT, "nVidia Tegra20 (Flattened Device Tree)")
 199         .map_io         = tegra_map_common_io,
 200         .smp            = smp_ops(tegra_smp_ops),
 201         .init_early     = tegra20_init_early,
 202         .init_irq       = tegra_dt_init_irq,
 203         .timer          = &tegra_sys_timer,
 204         .init_machine   = tegra_dt_init,
 205         .init_late      = tegra_dt_init_late,
 206         .restart        = tegra_assert_system_reset,
 207         .dt_compat      = tegra20_dt_board_compat,
 208 MACHINE_END