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 #include <linux/usb/phy.h>
  33
  34 #include <asm/mach-types.h>
  35 #include <asm/mach/arch.h>
  36 #include <asm/mach/map.h>
  37
  38 #include "common.h"
  39 #include "mux.h"
  40 #include "hsmmc.h"
  41 #include "control.h"
  42 #include "common-board-devices.h"
  43 #include "gpmc.h"
  44 #include "gpmc-smsc911x.h"
  45
  46 #define OMAP3LOGIC_SMSC911X_CS                  1
  47
  48 #define OMAP3530_LV_SOM_MMC_GPIO_CD             110
  49 #define OMAP3530_LV_SOM_MMC_GPIO_WP             126
  50 #define OMAP3530_LV_SOM_SMSC911X_GPIO_IRQ       152
  51
  52 #define OMAP3_TORPEDO_MMC_GPIO_CD               127
  53 #define OMAP3_TORPEDO_SMSC911X_GPIO_IRQ         129
  54
  55 static struct regulator_consumer_supply omap3logic_vmmc1_supply[] = {
  56         REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
  57 };
  58
  59 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
  60 static struct regulator_init_data omap3logic_vmmc1 = {
  61         .constraints = {
  62                 .name                   = "VMMC1",
  63                 .min_uV                 = 1850000,
  64                 .max_uV                 = 3150000,
  65                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
  66                                         | REGULATOR_MODE_STANDBY,
  67                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
  68                                         | REGULATOR_CHANGE_MODE
  69                                         | REGULATOR_CHANGE_STATUS,
  70         },
  71         .num_consumer_supplies  = ARRAY_SIZE(omap3logic_vmmc1_supply),
  72         .consumer_supplies      = omap3logic_vmmc1_supply,
  73 };
  74
  75 static struct twl4030_gpio_platform_data omap3logic_gpio_data = {
  76         .use_leds       = true,
  77         .pullups        = BIT(1),
  78         .pulldowns      = BIT(2)  | BIT(6)  | BIT(7)  | BIT(8)
  79                         | BIT(13) | BIT(15) | BIT(16) | BIT(17),
  80 };
  81
  82 static struct twl4030_usb_data omap3logic_usb_data = {
  83         .usb_mode       = T2_USB_MODE_ULPI,
  84 };
  85
  86
  87 static struct twl4030_platform_data omap3logic_twldata = {
  88         /* platform_data for children goes here */
  89         .gpio           = &omap3logic_gpio_data,
  90         .vmmc1          = &omap3logic_vmmc1,
  91         .usb            = &omap3logic_usb_data,
  92 };
  93
  94 static int __init omap3logic_i2c_init(void)
  95 {
  96         omap3_pmic_init("twl4030", &omap3logic_twldata);
  97         return 0;
  98 }
  99
 100 static struct omap2_hsmmc_info __initdata board_mmc_info[] = {
 101         {
 102                 .name           = "external",
 103                 .mmc            = 1,
 104                 .caps           = MMC_CAP_4_BIT_DATA,
 105                 .gpio_cd        = -EINVAL,
 106                 .gpio_wp        = -EINVAL,
 107         },
 108         {}      /* Terminator */
 109 };
 110
 111 static void __init board_mmc_init(void)
 112 {
 113         if (machine_is_omap3530_lv_som()) {
 114                 /* OMAP3530 LV SOM board */
 115                 board_mmc_info[0].gpio_cd = OMAP3530_LV_SOM_MMC_GPIO_CD;
 116                 board_mmc_info[0].gpio_wp = OMAP3530_LV_SOM_MMC_GPIO_WP;
 117                 omap_mux_init_signal("gpio_110", OMAP_PIN_OUTPUT);
 118                 omap_mux_init_signal("gpio_126", OMAP_PIN_OUTPUT);
 119         } else if (machine_is_omap3_torpedo()) {
 120                 /* OMAP3 Torpedo board */
 121                 board_mmc_info[0].gpio_cd = OMAP3_TORPEDO_MMC_GPIO_CD;
 122                 omap_mux_init_signal("gpio_127", OMAP_PIN_OUTPUT);
 123         } else {
 124                 /* unsupported board */
 125                 printk(KERN_ERR "%s(): unknown machine type\n", __func__);
 126                 return;
 127         }
 128
 129         omap_hsmmc_init(board_mmc_info);
 130 }
 131
 132 static struct omap_smsc911x_platform_data __initdata board_smsc911x_data = {
 133         .cs             = OMAP3LOGIC_SMSC911X_CS,
 134         .gpio_irq       = -EINVAL,
 135         .gpio_reset     = -EINVAL,
 136 };
 137
 138 /* TODO/FIXME (comment by Peter Barada, LogicPD):
 139  * Fix the PBIAS voltage for Torpedo MMC1 pins that
 140  * are used for other needs (IRQs, etc).            */
 141 static void omap3torpedo_fix_pbias_voltage(void)
 142 {
 143         u16 control_pbias_offset = OMAP343X_CONTROL_PBIAS_LITE;
 144         u32 reg;
 145
 146         if (machine_is_omap3_torpedo())
 147         {
 148                 /* Set the bias for the pin */
 149                 reg = omap_ctrl_readl(control_pbias_offset);
 150
 151                 reg &= ~OMAP343X_PBIASLITEPWRDNZ1;
 152                 omap_ctrl_writel(reg, control_pbias_offset);
 153
 154                 /* 100ms delay required for PBIAS configuration */
 155                 msleep(100);
 156
 157                 reg |= OMAP343X_PBIASLITEVMODE1;
 158                 reg |= OMAP343X_PBIASLITEPWRDNZ1;
 159                 omap_ctrl_writel(reg | 0x300, control_pbias_offset);
 160         }
 161 }
 162
 163 static inline void __init board_smsc911x_init(void)
 164 {
 165         if (machine_is_omap3530_lv_som()) {
 166                 /* OMAP3530 LV SOM board */
 167                 board_smsc911x_data.gpio_irq =
 168                                         OMAP3530_LV_SOM_SMSC911X_GPIO_IRQ;
 169                 omap_mux_init_signal("gpio_152", OMAP_PIN_INPUT);
 170         } else if (machine_is_omap3_torpedo()) {
 171                 /* OMAP3 Torpedo board */
 172                 board_smsc911x_data.gpio_irq = OMAP3_TORPEDO_SMSC911X_GPIO_IRQ;
 173                 omap_mux_init_signal("gpio_129", OMAP_PIN_INPUT);
 174         } else {
 175                 /* unsupported board */
 176                 printk(KERN_ERR "%s(): unknown machine type\n", __func__);
 177                 return;
 178         }
 179
 180         gpmc_smsc911x_init(&board_smsc911x_data);
 181 }
 182
 183 #ifdef CONFIG_OMAP_MUX
 184 static struct omap_board_mux board_mux[] __initdata = {
 185         /* mUSB */
 186         OMAP3_MUX(HSUSB0_CLK, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
 187         OMAP3_MUX(HSUSB0_STP, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
 188         OMAP3_MUX(HSUSB0_DIR, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
 189         OMAP3_MUX(HSUSB0_NXT, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
 190         OMAP3_MUX(HSUSB0_DATA0, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
 191         OMAP3_MUX(HSUSB0_DATA1, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
 192         OMAP3_MUX(HSUSB0_DATA2, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
 193         OMAP3_MUX(HSUSB0_DATA3, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
 194         OMAP3_MUX(HSUSB0_DATA4, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
 195         OMAP3_MUX(HSUSB0_DATA5, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
 196         OMAP3_MUX(HSUSB0_DATA6, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
 197         OMAP3_MUX(HSUSB0_DATA7, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
 198
 199         { .reg_offset = OMAP_MUX_TERMINATOR },
 200 };
 201 #endif
 202
 203 static struct regulator_consumer_supply dummy_supplies[] = {
 204         REGULATOR_SUPPLY("vddvario", "smsc911x.0"),
 205         REGULATOR_SUPPLY("vdd33a", "smsc911x.0"),
 206 };
 207
 208 static void __init omap3logic_init(void)
 209 {
 210         regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
 211         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 212         omap3torpedo_fix_pbias_voltage();
 213         omap3logic_i2c_init();
 214         omap_serial_init();
 215         omap_sdrc_init(NULL, NULL);
 216         board_mmc_init();
 217         board_smsc911x_init();
 218
 219         usb_bind_phy("musb-hdrc.0.auto", 0, "twl4030_usb");
 220         usb_musb_init(NULL);
 221
 222         /* Ensure SDRC pins are mux'd for self-refresh */
 223         omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
 224         omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
 225 }
 226
 227 MACHINE_START(OMAP3_TORPEDO, "Logic OMAP3 Torpedo board")
 228         .atag_offset    = 0x100,
 229         .reserve        = omap_reserve,
 230         .map_io         = omap3_map_io,
 231         .init_early     = omap35xx_init_early,
 232         .init_irq       = omap3_init_irq,
 233         .handle_irq     = omap3_intc_handle_irq,
 234         .init_machine   = omap3logic_init,
 235         .init_late      = omap35xx_init_late,
 236         .init_time      = omap3_sync32k_timer_init,
 237         .restart        = omap3xxx_restart,
 238 MACHINE_END
 239
 240 MACHINE_START(OMAP3530_LV_SOM, "OMAP Logic 3530 LV SOM board")
 241         .atag_offset    = 0x100,
 242         .reserve        = omap_reserve,
 243         .map_io         = omap3_map_io,
 244         .init_early     = omap35xx_init_early,
 245         .init_irq       = omap3_init_irq,
 246         .handle_irq     = omap3_intc_handle_irq,
 247         .init_machine   = omap3logic_init,
 248         .init_late      = omap35xx_init_late,
 249         .init_time      = omap3_sync32k_timer_init,
 250         .restart        = omap3xxx_restart,
 251 MACHINE_END