arch/arm/mach-tegra/board-harmony.c

   1 /*
   2  * arch/arm/mach-tegra/board-harmony.c
   3  *
   4  * Copyright (C) 2010 Google, Inc.
   5  * Copyright (C) 2011 NVIDIA, 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/of_serial.h>
  23 #include <linux/clk.h>
  24 #include <linux/dma-mapping.h>
  25 #include <linux/pda_power.h>
  26 #include <linux/io.h>
  27 #include <linux/gpio.h>
  28 #include <linux/i2c.h>
  29
  30 #include <sound/wm8903.h>
  31
  32 #include <asm/mach-types.h>
  33 #include <asm/mach/arch.h>
  34 #include <asm/mach/time.h>
  35 #include <asm/hardware/gic.h>
  36 #include <asm/setup.h>
  37
  38 #include <mach/tegra_wm8903_pdata.h>
  39 #include <mach/iomap.h>
  40 #include <mach/irqs.h>
  41 #include <mach/sdhci.h>
  42
  43 #include "board.h"
  44 #include "board-harmony.h"
  45 #include "clock.h"
  46 #include "devices.h"
  47 #include "gpio-names.h"
  48
  49 static struct plat_serial8250_port debug_uart_platform_data[] = {
  50         {
  51                 .membase        = IO_ADDRESS(TEGRA_UARTD_BASE),
  52                 .mapbase        = TEGRA_UARTD_BASE,
  53                 .irq            = INT_UARTD,
  54                 .flags          = UPF_BOOT_AUTOCONF | UPF_FIXED_TYPE,
  55                 .type           = PORT_TEGRA,
  56                 .handle_break   = tegra_serial_handle_break,
  57                 .iotype         = UPIO_MEM,
  58                 .regshift       = 2,
  59                 .uartclk        = 216000000,
  60         }, {
  61                 .flags          = 0
  62         }
  63 };
  64
  65 static struct platform_device debug_uart = {
  66         .name = "serial8250",
  67         .id = PLAT8250_DEV_PLATFORM,
  68         .dev = {
  69                 .platform_data = debug_uart_platform_data,
  70         },
  71 };
  72
  73 static struct tegra_wm8903_platform_data harmony_audio_pdata = {
  74         .gpio_spkr_en           = TEGRA_GPIO_SPKR_EN,
  75         .gpio_hp_det            = TEGRA_GPIO_HP_DET,
  76         .gpio_hp_mute           = -1,
  77         .gpio_int_mic_en        = TEGRA_GPIO_INT_MIC_EN,
  78         .gpio_ext_mic_en        = TEGRA_GPIO_EXT_MIC_EN,
  79 };
  80
  81 static struct platform_device harmony_audio_device = {
  82         .name   = "tegra-snd-wm8903",
  83         .id     = 0,
  84         .dev    = {
  85                 .platform_data  = &harmony_audio_pdata,
  86         },
  87 };
  88
  89 static struct wm8903_platform_data harmony_wm8903_pdata = {
  90         .irq_active_low = 0,
  91         .micdet_cfg = 0,
  92         .micdet_delay = 100,
  93         .gpio_base = HARMONY_GPIO_WM8903(0),
  94         .gpio_cfg = {
  95                 0,
  96                 0,
  97                 WM8903_GPIO_CONFIG_ZERO,
  98                 0,
  99                 0,
 100         },
 101 };
 102
 103 static struct i2c_board_info __initdata wm8903_board_info = {
 104         I2C_BOARD_INFO("wm8903", 0x1a),
 105         .platform_data = &harmony_wm8903_pdata,
 106 };
 107
 108 static void __init harmony_i2c_init(void)
 109 {
 110         platform_device_register(&tegra_i2c_device1);
 111         platform_device_register(&tegra_i2c_device2);
 112         platform_device_register(&tegra_i2c_device3);
 113         platform_device_register(&tegra_i2c_device4);
 114
 115         wm8903_board_info.irq = gpio_to_irq(TEGRA_GPIO_CDC_IRQ);
 116         i2c_register_board_info(0, &wm8903_board_info, 1);
 117 }
 118
 119 static struct platform_device *harmony_devices[] __initdata = {
 120         &debug_uart,
 121         &tegra_sdhci_device1,
 122         &tegra_sdhci_device2,
 123         &tegra_sdhci_device4,
 124         &tegra_ehci3_device,
 125         &tegra_i2s_device1,
 126         &tegra_das_device,
 127         &harmony_audio_device,
 128 };
 129
 130 static void __init tegra_harmony_fixup(struct tag *tags, char **cmdline,
 131         struct meminfo *mi)
 132 {
 133         mi->nr_banks = 2;
 134         mi->bank[0].start = PHYS_OFFSET;
 135         mi->bank[0].size = 448 * SZ_1M;
 136         mi->bank[1].start = SZ_512M;
 137         mi->bank[1].size = SZ_512M;
 138 }
 139
 140 static __initdata struct tegra_clk_init_table harmony_clk_init_table[] = {
 141         /* name         parent          rate            enabled */
 142         { "uartd",      "pll_p",        216000000,      true },
 143         { "pll_a",      "pll_p_out1",   56448000,       true },
 144         { "pll_a_out0", "pll_a",        11289600,       true },
 145         { "cdev1",      NULL,           0,              true },
 146         { "i2s1",       "pll_a_out0",   11289600,       false},
 147         { "usb3",       "clk_m",        12000000,       true },
 148         { NULL,         NULL,           0,              0},
 149 };
 150
 151
 152 static struct tegra_sdhci_platform_data sdhci_pdata1 = {
 153         .cd_gpio        = -1,
 154         .wp_gpio        = -1,
 155         .power_gpio     = -1,
 156 };
 157
 158 static struct tegra_sdhci_platform_data sdhci_pdata2 = {
 159         .cd_gpio        = TEGRA_GPIO_SD2_CD,
 160         .wp_gpio        = TEGRA_GPIO_SD2_WP,
 161         .power_gpio     = TEGRA_GPIO_SD2_POWER,
 162 };
 163
 164 static struct tegra_sdhci_platform_data sdhci_pdata4 = {
 165         .cd_gpio        = TEGRA_GPIO_SD4_CD,
 166         .wp_gpio        = TEGRA_GPIO_SD4_WP,
 167         .power_gpio     = TEGRA_GPIO_SD4_POWER,
 168         .is_8bit        = 1,
 169 };
 170
 171 static void __init tegra_harmony_init(void)
 172 {
 173         tegra_clk_init_from_table(harmony_clk_init_table);
 174
 175         harmony_pinmux_init();
 176
 177         tegra_sdhci_device1.dev.platform_data = &sdhci_pdata1;
 178         tegra_sdhci_device2.dev.platform_data = &sdhci_pdata2;
 179         tegra_sdhci_device4.dev.platform_data = &sdhci_pdata4;
 180
 181         platform_add_devices(harmony_devices, ARRAY_SIZE(harmony_devices));
 182         harmony_i2c_init();
 183         harmony_regulator_init();
 184 }
 185
 186 MACHINE_START(HARMONY, "harmony")
 187         .atag_offset    = 0x100,
 188         .fixup          = tegra_harmony_fixup,
 189         .map_io         = tegra_map_common_io,
 190         .init_early     = tegra20_init_early,
 191         .init_irq       = tegra_init_irq,
 192         .handle_irq     = gic_handle_irq,
 193         .timer          = &tegra_timer,
 194         .init_machine   = tegra_harmony_init,
 195         .init_late      = tegra_init_late,
 196         .restart        = tegra_assert_system_reset,
 197 MACHINE_END