arch/arm/mach-omap2/board-omap3logic.c

   1 /*
   2  * linux/arch/arm/mach-omap2/board-omap3logic.c
   3  *
   4  * Copyright (C) 2010 Li-Pro.Net
   5  * Stephan Linz <linz@li-pro.net>
   6  *
   7  * Copyright (C) 2010-2012 Logic Product Development, Inc.
   8  * Peter Barada <peter.barada@logicpd.com>
   9  * Ashwin BIhari <ashwin.bihari@logicpd.com>
  10  *
  11  * Modified from Beagle, EVM, and RX51
  12  *
  13  * This program is free software; you can redistribute it and/or modify
  14  * it under the terms of the GNU General Public License version 2 as
  15  * published by the Free Software Foundation.
  16  */
  17
  18 #include <linux/kernel.h>
  19 #include <linux/init.h>
  20 #include <linux/platform_device.h>
  21 #include <linux/delay.h>
  22 #include <linux/err.h>
  23 #include <linux/clk.h>
  24 #include <linux/io.h>
  25 #include <linux/gpio.h>
  26
  27 #include <linux/regulator/fixed.h>
  28 #include <linux/regulator/machine.h>
  29
  30 #include <linux/i2c/twl.h>
  31 #include <linux/mmc/host.h>
  32
  33 #include <asm/mach-types.h>
  34 #include <asm/mach/arch.h>
  35 #include <asm/mach/map.h>
  36
  37 #include "gpmc-smsc911x.h"
  38 #include <plat/gpmc.h>
  39 #include <plat/sdrc.h>
  40 #include <plat/usb.h>
  41
  42 #include "common.h"
  43 #include "mux.h"
  44 #include "hsmmc.h"
  45 #include "control.h"
  46 #include "common-board-devices.h"
  47
  48 #define OMAP3LOGIC_SMSC911X_CS                  1
  49
  50 #define OMAP3530_LV_SOM_MMC_GPIO_CD             110
  51 #define OMAP3530_LV_SOM_MMC_GPIO_WP             126
  52 #define OMAP3530_LV_SOM_SMSC911X_GPIO_IRQ       152
  53
  54 #define OMAP3_TORPEDO_MMC_GPIO_CD               127
  55 #define OMAP3_TORPEDO_SMSC911X_GPIO_IRQ         129
  56
  57 static struct regulator_consumer_supply omap3logic_vmmc1_supply[] = {
  58         REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
  59 };
  60
  61 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
  62 static struct regulator_init_data omap3logic_vmmc1 = {
  63         .constraints = {
  64                 .name                   = "VMMC1",
  65                 .min_uV                 = 1850000,
  66                 .max_uV                 = 3150000,
  67                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
  68                                         | REGULATOR_MODE_STANDBY,
  69                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
  70                                         | REGULATOR_CHANGE_MODE
  71                                         | REGULATOR_CHANGE_STATUS,
  72         },
  73         .num_consumer_supplies  = ARRAY_SIZE(omap3logic_vmmc1_supply),
  74         .consumer_supplies      = omap3logic_vmmc1_supply,
  75 };
  76
  77 static struct twl4030_gpio_platform_data omap3logic_gpio_data = {
  78         .use_leds       = true,
  79         .pullups        = BIT(1),
  80         .pulldowns      = BIT(2)  | BIT(6)  | BIT(7)  | BIT(8)
  81                         | BIT(13) | BIT(15) | BIT(16) | BIT(17),
  82 };
  83
  84 static struct twl4030_usb_data omap3logic_usb_data = {
  85         .usb_mode       = T2_USB_MODE_ULPI,
  86 };
  87
  88
  89 static struct twl4030_platform_data omap3logic_twldata = {
  90         /* platform_data for children goes here */
  91         .gpio           = &omap3logic_gpio_data,
  92         .vmmc1          = &omap3logic_vmmc1,
  93         .usb            = &omap3logic_usb_data,
  94 };
  95
  96 static int __init omap3logic_i2c_init(void)
  97 {
  98         omap3_pmic_init("twl4030", &omap3logic_twldata);
  99         return 0;
 100 }
 101
 102 static struct omap2_hsmmc_info __initdata board_mmc_info[] = {
 103         {
 104                 .name           = "external",
 105                 .mmc            = 1,
 106                 .caps           = MMC_CAP_4_BIT_DATA,
 107                 .gpio_cd        = -EINVAL,
 108                 .gpio_wp        = -EINVAL,
 109         },
 110         {}      /* Terminator */
 111 };
 112
 113 static void __init board_mmc_init(void)
 114 {
 115         if (machine_is_omap3530_lv_som()) {
 116                 /* OMAP3530 LV SOM board */
 117                 board_mmc_info[0].gpio_cd = OMAP3530_LV_SOM_MMC_GPIO_CD;
 118                 board_mmc_info[0].gpio_wp = OMAP3530_LV_SOM_MMC_GPIO_WP;
 119                 omap_mux_init_signal("gpio_110", OMAP_PIN_OUTPUT);
 120                 omap_mux_init_signal("gpio_126", OMAP_PIN_OUTPUT);
 121         } else if (machine_is_omap3_torpedo()) {
 122                 /* OMAP3 Torpedo board */
 123                 board_mmc_info[0].gpio_cd = OMAP3_TORPEDO_MMC_GPIO_CD;
 124                 omap_mux_init_signal("gpio_127", OMAP_PIN_OUTPUT);
 125         } else {
 126                 /* unsupported board */
 127                 printk(KERN_ERR "%s(): unknown machine type\n", __func__);
 128                 return;
 129         }
 130
 131         omap_hsmmc_init(board_mmc_info);
 132 }
 133
 134 static struct omap_smsc911x_platform_data __initdata board_smsc911x_data = {
 135         .cs             = OMAP3LOGIC_SMSC911X_CS,
 136         .gpio_irq       = -EINVAL,
 137         .gpio_reset     = -EINVAL,
 138 };
 139
 140 /* TODO/FIXME (comment by Peter Barada, LogicPD):
 141  * Fix the PBIAS voltage for Torpedo MMC1 pins that
 142  * are used for other needs (IRQs, etc).            */
 143 static void omap3torpedo_fix_pbias_voltage(void)
 144 {
 145         u16 control_pbias_offset = OMAP343X_CONTROL_PBIAS_LITE;
 146         u32 reg;
 147
 148         if (machine_is_omap3_torpedo())
 149         {
 150                 /* Set the bias for the pin */
 151                 reg = omap_ctrl_readl(control_pbias_offset);
 152
 153                 reg &= ~OMAP343X_PBIASLITEPWRDNZ1;
 154                 omap_ctrl_writel(reg, control_pbias_offset);
 155
 156                 /* 100ms delay required for PBIAS configuration */
 157                 msleep(100);
 158
 159                 reg |= OMAP343X_PBIASLITEVMODE1;
 160                 reg |= OMAP343X_PBIASLITEPWRDNZ1;
 161                 omap_ctrl_writel(reg | 0x300, control_pbias_offset);
 162         }
 163 }
 164
 165 static inline void __init board_smsc911x_init(void)
 166 {
 167         if (machine_is_omap3530_lv_som()) {
 168                 /* OMAP3530 LV SOM board */
 169                 board_smsc911x_data.gpio_irq =
 170                                         OMAP3530_LV_SOM_SMSC911X_GPIO_IRQ;
 171                 omap_mux_init_signal("gpio_152", OMAP_PIN_INPUT);
 172         } else if (machine_is_omap3_torpedo()) {
 173                 /* OMAP3 Torpedo board */
 174                 board_smsc911x_data.gpio_irq = OMAP3_TORPEDO_SMSC911X_GPIO_IRQ;
 175                 omap_mux_init_signal("gpio_129", OMAP_PIN_INPUT);
 176         } else {
 177                 /* unsupported board */
 178                 printk(KERN_ERR "%s(): unknown machine type\n", __func__);
 179                 return;
 180         }
 181
 182         gpmc_smsc911x_init(&board_smsc911x_data);
 183 }
 184
 185 #ifdef CONFIG_OMAP_MUX
 186 static struct omap_board_mux board_mux[] __initdata = {
 187         /* mUSB */
 188         OMAP3_MUX(HSUSB0_CLK, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
 189         OMAP3_MUX(HSUSB0_STP, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
 190         OMAP3_MUX(HSUSB0_DIR, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
 191         OMAP3_MUX(HSUSB0_NXT, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
 192         OMAP3_MUX(HSUSB0_DATA0, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
 193         OMAP3_MUX(HSUSB0_DATA1, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
 194         OMAP3_MUX(HSUSB0_DATA2, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
 195         OMAP3_MUX(HSUSB0_DATA3, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
 196         OMAP3_MUX(HSUSB0_DATA4, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
 197         OMAP3_MUX(HSUSB0_DATA5, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
 198         OMAP3_MUX(HSUSB0_DATA6, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
 199         OMAP3_MUX(HSUSB0_DATA7, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
 200
 201         { .reg_offset = OMAP_MUX_TERMINATOR },
 202 };
 203 #endif
 204
 205 static struct regulator_consumer_supply dummy_supplies[] = {
 206         REGULATOR_SUPPLY("vddvario", "smsc911x.0"),
 207         REGULATOR_SUPPLY("vdd33a", "smsc911x.0"),
 208 };
 209
 210 static void __init omap3logic_init(void)
 211 {
 212         regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
 213         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 214         omap3torpedo_fix_pbias_voltage();
 215         omap3logic_i2c_init();
 216         omap_serial_init();
 217         omap_sdrc_init(NULL, NULL);
 218         board_mmc_init();
 219         board_smsc911x_init();
 220
 221         usb_musb_init(NULL);
 222
 223         /* Ensure SDRC pins are mux'd for self-refresh */
 224         omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
 225         omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
 226 }
 227
 228 MACHINE_START(OMAP3_TORPEDO, "Logic OMAP3 Torpedo board")
 229         .atag_offset    = 0x100,
 230         .reserve        = omap_reserve,
 231         .map_io         = omap3_map_io,
 232         .init_early     = omap35xx_init_early,
 233         .init_irq       = omap3_init_irq,
 234         .handle_irq     = omap3_intc_handle_irq,
 235         .init_machine   = omap3logic_init,
 236         .init_late      = omap35xx_init_late,
 237         .timer          = &omap3_timer,
 238         .restart        = omap_prcm_restart,
 239 MACHINE_END
 240
 241 MACHINE_START(OMAP3530_LV_SOM, "OMAP Logic 3530 LV SOM board")
 242         .atag_offset    = 0x100,
 243         .reserve        = omap_reserve,
 244         .map_io         = omap3_map_io,
 245         .init_early     = omap35xx_init_early,
 246         .init_irq       = omap3_init_irq,
 247         .handle_irq     = omap3_intc_handle_irq,
 248         .init_machine   = omap3logic_init,
 249         .init_late      = omap35xx_init_late,
 250         .timer          = &omap3_timer,
 251         .restart        = omap_prcm_restart,
 252 MACHINE_END