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 <mach/hardware.h>
  34 #include <asm/mach-types.h>
  35 #include <asm/mach/arch.h>
  36 #include <asm/mach/map.h>
  37
  38 #include "mux.h"
  39 #include "hsmmc.h"
  40 #include "control.h"
  41 #include "common-board-devices.h"
  42
  43 #include <plat/mux.h>
  44 #include <plat/board.h>
  45 #include "common.h"
  46 #include <plat/gpmc-smsc911x.h>
  47 #include <plat/gpmc.h>
  48 #include <plat/sdrc.h>
  49 #include <plat/usb.h>
  50
  51 #define OMAP3LOGIC_SMSC911X_CS                  1
  52
  53 #define OMAP3530_LV_SOM_MMC_GPIO_CD             110
  54 #define OMAP3530_LV_SOM_MMC_GPIO_WP             126
  55 #define OMAP3530_LV_SOM_SMSC911X_GPIO_IRQ       152
  56
  57 #define OMAP3_TORPEDO_MMC_GPIO_CD               127
  58 #define OMAP3_TORPEDO_SMSC911X_GPIO_IRQ         129
  59
  60 static struct regulator_consumer_supply omap3logic_vmmc1_supply[] = {
  61         REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
  62 };
  63
  64 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
  65 static struct regulator_init_data omap3logic_vmmc1 = {
  66         .constraints = {
  67                 .name                   = "VMMC1",
  68                 .min_uV                 = 1850000,
  69                 .max_uV                 = 3150000,
  70                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
  71                                         | REGULATOR_MODE_STANDBY,
  72                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
  73                                         | REGULATOR_CHANGE_MODE
  74                                         | REGULATOR_CHANGE_STATUS,
  75         },
  76         .num_consumer_supplies  = ARRAY_SIZE(omap3logic_vmmc1_supply),
  77         .consumer_supplies      = omap3logic_vmmc1_supply,
  78 };
  79
  80 static struct twl4030_gpio_platform_data omap3logic_gpio_data = {
  81         .gpio_base      = OMAP_MAX_GPIO_LINES,
  82         .irq_base       = TWL4030_GPIO_IRQ_BASE,
  83         .irq_end        = TWL4030_GPIO_IRQ_END,
  84         .use_leds       = true,
  85         .pullups        = BIT(1),
  86         .pulldowns      = BIT(2)  | BIT(6)  | BIT(7)  | BIT(8)
  87                         | BIT(13) | BIT(15) | BIT(16) | BIT(17),
  88 };
  89
  90 static struct twl4030_usb_data omap3logic_usb_data = {
  91         .usb_mode       = T2_USB_MODE_ULPI,
  92 };
  93
  94
  95 static struct twl4030_platform_data omap3logic_twldata = {
  96         .irq_base       = TWL4030_IRQ_BASE,
  97         .irq_end        = TWL4030_IRQ_END,
  98
  99         /* platform_data for children goes here */
 100         .gpio           = &omap3logic_gpio_data,
 101         .vmmc1          = &omap3logic_vmmc1,
 102         .usb            = &omap3logic_usb_data,
 103 };
 104
 105 static int __init omap3logic_i2c_init(void)
 106 {
 107         omap3_pmic_init("twl4030", &omap3logic_twldata);
 108         return 0;
 109 }
 110
 111 static struct omap2_hsmmc_info __initdata board_mmc_info[] = {
 112         {
 113                 .name           = "external",
 114                 .mmc            = 1,
 115                 .caps           = MMC_CAP_4_BIT_DATA,
 116                 .gpio_cd        = -EINVAL,
 117                 .gpio_wp        = -EINVAL,
 118         },
 119         {}      /* Terminator */
 120 };
 121
 122 static void __init board_mmc_init(void)
 123 {
 124         if (machine_is_omap3530_lv_som()) {
 125                 /* OMAP3530 LV SOM board */
 126                 board_mmc_info[0].gpio_cd = OMAP3530_LV_SOM_MMC_GPIO_CD;
 127                 board_mmc_info[0].gpio_wp = OMAP3530_LV_SOM_MMC_GPIO_WP;
 128                 omap_mux_init_signal("gpio_110", OMAP_PIN_OUTPUT);
 129                 omap_mux_init_signal("gpio_126", OMAP_PIN_OUTPUT);
 130         } else if (machine_is_omap3_torpedo()) {
 131                 /* OMAP3 Torpedo board */
 132                 board_mmc_info[0].gpio_cd = OMAP3_TORPEDO_MMC_GPIO_CD;
 133                 omap_mux_init_signal("gpio_127", OMAP_PIN_OUTPUT);
 134         } else {
 135                 /* unsupported board */
 136                 printk(KERN_ERR "%s(): unknown machine type\n", __func__);
 137                 return;
 138         }
 139
 140         omap_hsmmc_init(board_mmc_info);
 141 }
 142
 143 static struct omap_smsc911x_platform_data __initdata board_smsc911x_data = {
 144         .cs             = OMAP3LOGIC_SMSC911X_CS,
 145         .gpio_irq       = -EINVAL,
 146         .gpio_reset     = -EINVAL,
 147 };
 148
 149 /* TODO/FIXME (comment by Peter Barada, LogicPD):
 150  * Fix the PBIAS voltage for Torpedo MMC1 pins that
 151  * are used for other needs (IRQs, etc).            */
 152 static void omap3torpedo_fix_pbias_voltage(void)
 153 {
 154         u16 control_pbias_offset = OMAP343X_CONTROL_PBIAS_LITE;
 155         u32 reg;
 156
 157         if (machine_is_omap3_torpedo())
 158         {
 159                 /* Set the bias for the pin */
 160                 reg = omap_ctrl_readl(control_pbias_offset);
 161
 162                 reg &= ~OMAP343X_PBIASLITEPWRDNZ1;
 163                 omap_ctrl_writel(reg, control_pbias_offset);
 164
 165                 /* 100ms delay required for PBIAS configuration */
 166                 msleep(100);
 167
 168                 reg |= OMAP343X_PBIASLITEVMODE1;
 169                 reg |= OMAP343X_PBIASLITEPWRDNZ1;
 170                 omap_ctrl_writel(reg | 0x300, control_pbias_offset);
 171         }
 172 }
 173
 174 static inline void __init board_smsc911x_init(void)
 175 {
 176         if (machine_is_omap3530_lv_som()) {
 177                 /* OMAP3530 LV SOM board */
 178                 board_smsc911x_data.gpio_irq =
 179                                         OMAP3530_LV_SOM_SMSC911X_GPIO_IRQ;
 180                 omap_mux_init_signal("gpio_152", OMAP_PIN_INPUT);
 181         } else if (machine_is_omap3_torpedo()) {
 182                 /* OMAP3 Torpedo board */
 183                 board_smsc911x_data.gpio_irq = OMAP3_TORPEDO_SMSC911X_GPIO_IRQ;
 184                 omap_mux_init_signal("gpio_129", OMAP_PIN_INPUT);
 185         } else {
 186                 /* unsupported board */
 187                 printk(KERN_ERR "%s(): unknown machine type\n", __func__);
 188                 return;
 189         }
 190
 191         gpmc_smsc911x_init(&board_smsc911x_data);
 192 }
 193
 194 #ifdef CONFIG_OMAP_MUX
 195 static struct omap_board_mux board_mux[] __initdata = {
 196         /* mUSB */
 197         OMAP3_MUX(HSUSB0_CLK, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
 198         OMAP3_MUX(HSUSB0_STP, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
 199         OMAP3_MUX(HSUSB0_DIR, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
 200         OMAP3_MUX(HSUSB0_NXT, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
 201         OMAP3_MUX(HSUSB0_DATA0, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
 202         OMAP3_MUX(HSUSB0_DATA1, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
 203         OMAP3_MUX(HSUSB0_DATA2, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
 204         OMAP3_MUX(HSUSB0_DATA3, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
 205         OMAP3_MUX(HSUSB0_DATA4, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
 206         OMAP3_MUX(HSUSB0_DATA5, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
 207         OMAP3_MUX(HSUSB0_DATA6, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
 208         OMAP3_MUX(HSUSB0_DATA7, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
 209
 210         { .reg_offset = OMAP_MUX_TERMINATOR },
 211 };
 212 #endif
 213
 214 static struct regulator_consumer_supply dummy_supplies[] = {
 215         REGULATOR_SUPPLY("vddvario", "smsc911x.0"),
 216         REGULATOR_SUPPLY("vdd33a", "smsc911x.0"),
 217 };
 218
 219 static void __init omap3logic_init(void)
 220 {
 221         regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
 222         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 223         omap3torpedo_fix_pbias_voltage();
 224         omap3logic_i2c_init();
 225         omap_serial_init();
 226         omap_sdrc_init(NULL, NULL);
 227         board_mmc_init();
 228         board_smsc911x_init();
 229
 230         usb_musb_init(NULL);
 231
 232         /* Ensure SDRC pins are mux'd for self-refresh */
 233         omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
 234         omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
 235 }
 236
 237 MACHINE_START(OMAP3_TORPEDO, "Logic OMAP3 Torpedo board")
 238         .atag_offset    = 0x100,
 239         .reserve        = omap_reserve,
 240         .map_io         = omap3_map_io,
 241         .init_early     = omap35xx_init_early,
 242         .init_irq       = omap3_init_irq,
 243         .handle_irq     = omap3_intc_handle_irq,
 244         .init_machine   = omap3logic_init,
 245         .init_late      = omap35xx_init_late,
 246         .timer          = &omap3_timer,
 247         .restart        = omap_prcm_restart,
 248 MACHINE_END
 249
 250 MACHINE_START(OMAP3530_LV_SOM, "OMAP Logic 3530 LV SOM board")
 251         .atag_offset    = 0x100,
 252         .reserve        = omap_reserve,
 253         .map_io         = omap3_map_io,
 254         .init_early     = omap35xx_init_early,
 255         .init_irq       = omap3_init_irq,
 256         .handle_irq     = omap3_intc_handle_irq,
 257         .init_machine   = omap3logic_init,
 258         .init_late      = omap35xx_init_late,
 259         .timer          = &omap3_timer,
 260         .restart        = omap_prcm_restart,
 261 MACHINE_END