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 "common.h"
  38 #include "mux.h"
  39 #include "hsmmc.h"
  40 #include "control.h"
  41 #include "common-board-devices.h"
  42 #include "gpmc.h"
  43 #include "gpmc-smsc911x.h"
  44
  45 #define OMAP3LOGIC_SMSC911X_CS                  1
  46
  47 #define OMAP3530_LV_SOM_MMC_GPIO_CD             110
  48 #define OMAP3530_LV_SOM_MMC_GPIO_WP             126
  49 #define OMAP3530_LV_SOM_SMSC911X_GPIO_IRQ       152
  50
  51 #define OMAP3_TORPEDO_MMC_GPIO_CD               127
  52 #define OMAP3_TORPEDO_SMSC911X_GPIO_IRQ         129
  53
  54 static struct regulator_consumer_supply omap3logic_vmmc1_supply[] = {
  55         REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
  56 };
  57
  58 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
  59 static struct regulator_init_data omap3logic_vmmc1 = {
  60         .constraints = {
  61                 .name                   = "VMMC1",
  62                 .min_uV                 = 1850000,
  63                 .max_uV                 = 3150000,
  64                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
  65                                         | REGULATOR_MODE_STANDBY,
  66                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
  67                                         | REGULATOR_CHANGE_MODE
  68                                         | REGULATOR_CHANGE_STATUS,
  69         },
  70         .num_consumer_supplies  = ARRAY_SIZE(omap3logic_vmmc1_supply),
  71         .consumer_supplies      = omap3logic_vmmc1_supply,
  72 };
  73
  74 static struct twl4030_gpio_platform_data omap3logic_gpio_data = {
  75         .use_leds       = true,
  76         .pullups        = BIT(1),
  77         .pulldowns      = BIT(2)  | BIT(6)  | BIT(7)  | BIT(8)
  78                         | BIT(13) | BIT(15) | BIT(16) | BIT(17),
  79 };
  80
  81 static struct twl4030_usb_data omap3logic_usb_data = {
  82         .usb_mode       = T2_USB_MODE_ULPI,
  83 };
  84
  85
  86 static struct twl4030_platform_data omap3logic_twldata = {
  87         /* platform_data for children goes here */
  88         .gpio           = &omap3logic_gpio_data,
  89         .vmmc1          = &omap3logic_vmmc1,
  90         .usb            = &omap3logic_usb_data,
  91 };
  92
  93 static int __init omap3logic_i2c_init(void)
  94 {
  95         omap3_pmic_init("twl4030", &omap3logic_twldata);
  96         return 0;
  97 }
  98
  99 static struct omap2_hsmmc_info __initdata board_mmc_info[] = {
 100         {
 101                 .name           = "external",
 102                 .mmc            = 1,
 103                 .caps           = MMC_CAP_4_BIT_DATA,
 104                 .gpio_cd        = -EINVAL,
 105                 .gpio_wp        = -EINVAL,
 106         },
 107         {}      /* Terminator */
 108 };
 109
 110 static void __init board_mmc_init(void)
 111 {
 112         if (machine_is_omap3530_lv_som()) {
 113                 /* OMAP3530 LV SOM board */
 114                 board_mmc_info[0].gpio_cd = OMAP3530_LV_SOM_MMC_GPIO_CD;
 115                 board_mmc_info[0].gpio_wp = OMAP3530_LV_SOM_MMC_GPIO_WP;
 116                 omap_mux_init_signal("gpio_110", OMAP_PIN_OUTPUT);
 117                 omap_mux_init_signal("gpio_126", OMAP_PIN_OUTPUT);
 118         } else if (machine_is_omap3_torpedo()) {
 119                 /* OMAP3 Torpedo board */
 120                 board_mmc_info[0].gpio_cd = OMAP3_TORPEDO_MMC_GPIO_CD;
 121                 omap_mux_init_signal("gpio_127", OMAP_PIN_OUTPUT);
 122         } else {
 123                 /* unsupported board */
 124                 printk(KERN_ERR "%s(): unknown machine type\n", __func__);
 125                 return;
 126         }
 127
 128         omap_hsmmc_init(board_mmc_info);
 129 }
 130
 131 static struct omap_smsc911x_platform_data __initdata board_smsc911x_data = {
 132         .cs             = OMAP3LOGIC_SMSC911X_CS,
 133         .gpio_irq       = -EINVAL,
 134         .gpio_reset     = -EINVAL,
 135 };
 136
 137 /* TODO/FIXME (comment by Peter Barada, LogicPD):
 138  * Fix the PBIAS voltage for Torpedo MMC1 pins that
 139  * are used for other needs (IRQs, etc).            */
 140 static void omap3torpedo_fix_pbias_voltage(void)
 141 {
 142         u16 control_pbias_offset = OMAP343X_CONTROL_PBIAS_LITE;
 143         u32 reg;
 144
 145         if (machine_is_omap3_torpedo())
 146         {
 147                 /* Set the bias for the pin */
 148                 reg = omap_ctrl_readl(control_pbias_offset);
 149
 150                 reg &= ~OMAP343X_PBIASLITEPWRDNZ1;
 151                 omap_ctrl_writel(reg, control_pbias_offset);
 152
 153                 /* 100ms delay required for PBIAS configuration */
 154                 msleep(100);
 155
 156                 reg |= OMAP343X_PBIASLITEVMODE1;
 157                 reg |= OMAP343X_PBIASLITEPWRDNZ1;
 158                 omap_ctrl_writel(reg | 0x300, control_pbias_offset);
 159         }
 160 }
 161
 162 static inline void __init board_smsc911x_init(void)
 163 {
 164         if (machine_is_omap3530_lv_som()) {
 165                 /* OMAP3530 LV SOM board */
 166                 board_smsc911x_data.gpio_irq =
 167                                         OMAP3530_LV_SOM_SMSC911X_GPIO_IRQ;
 168                 omap_mux_init_signal("gpio_152", OMAP_PIN_INPUT);
 169         } else if (machine_is_omap3_torpedo()) {
 170                 /* OMAP3 Torpedo board */
 171                 board_smsc911x_data.gpio_irq = OMAP3_TORPEDO_SMSC911X_GPIO_IRQ;
 172                 omap_mux_init_signal("gpio_129", OMAP_PIN_INPUT);
 173         } else {
 174                 /* unsupported board */
 175                 printk(KERN_ERR "%s(): unknown machine type\n", __func__);
 176                 return;
 177         }
 178
 179         gpmc_smsc911x_init(&board_smsc911x_data);
 180 }
 181
 182 #ifdef CONFIG_OMAP_MUX
 183 static struct omap_board_mux board_mux[] __initdata = {
 184         /* mUSB */
 185         OMAP3_MUX(HSUSB0_CLK, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
 186         OMAP3_MUX(HSUSB0_STP, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
 187         OMAP3_MUX(HSUSB0_DIR, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
 188         OMAP3_MUX(HSUSB0_NXT, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
 189         OMAP3_MUX(HSUSB0_DATA0, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
 190         OMAP3_MUX(HSUSB0_DATA1, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
 191         OMAP3_MUX(HSUSB0_DATA2, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
 192         OMAP3_MUX(HSUSB0_DATA3, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
 193         OMAP3_MUX(HSUSB0_DATA4, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
 194         OMAP3_MUX(HSUSB0_DATA5, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
 195         OMAP3_MUX(HSUSB0_DATA6, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
 196         OMAP3_MUX(HSUSB0_DATA7, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
 197
 198         { .reg_offset = OMAP_MUX_TERMINATOR },
 199 };
 200 #endif
 201
 202 static struct regulator_consumer_supply dummy_supplies[] = {
 203         REGULATOR_SUPPLY("vddvario", "smsc911x.0"),
 204         REGULATOR_SUPPLY("vdd33a", "smsc911x.0"),
 205 };
 206
 207 static void __init omap3logic_init(void)
 208 {
 209         regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
 210         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 211         omap3torpedo_fix_pbias_voltage();
 212         omap3logic_i2c_init();
 213         omap_serial_init();
 214         omap_sdrc_init(NULL, NULL);
 215         board_mmc_init();
 216         board_smsc911x_init();
 217
 218         usb_musb_init(NULL);
 219
 220         /* Ensure SDRC pins are mux'd for self-refresh */
 221         omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
 222         omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
 223 }
 224
 225 MACHINE_START(OMAP3_TORPEDO, "Logic OMAP3 Torpedo board")
 226         .atag_offset    = 0x100,
 227         .reserve        = omap_reserve,
 228         .map_io         = omap3_map_io,
 229         .init_early     = omap35xx_init_early,
 230         .init_irq       = omap3_init_irq,
 231         .handle_irq     = omap3_intc_handle_irq,
 232         .init_machine   = omap3logic_init,
 233         .init_late      = omap35xx_init_late,
 234         .timer          = &omap3_timer,
 235         .restart        = omap3xxx_restart,
 236 MACHINE_END
 237
 238 MACHINE_START(OMAP3530_LV_SOM, "OMAP Logic 3530 LV SOM board")
 239         .atag_offset    = 0x100,
 240         .reserve        = omap_reserve,
 241         .map_io         = omap3_map_io,
 242         .init_early     = omap35xx_init_early,
 243         .init_irq       = omap3_init_irq,
 244         .handle_irq     = omap3_intc_handle_irq,
 245         .init_machine   = omap3logic_init,
 246         .init_late      = omap35xx_init_late,
 247         .timer          = &omap3_timer,
 248         .restart        = omap3xxx_restart,
 249 MACHINE_END