- 根目录:
- arch
- arm
- mach-omap2
- board-omap3logic.c
/*
* linux/arch/arm/mach-omap2/board-omap3logic.c
*
* Copyright (C) 2010 Li-Pro.Net
* Stephan Linz <linz@li-pro.net>
*
* Copyright (C) 2010-2012 Logic Product Development, Inc.
* Peter Barada <peter.barada@logicpd.com>
* Ashwin BIhari <ashwin.bihari@logicpd.com>
*
* Modified from Beagle, EVM, and RX51
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/clk.h>
#include <linux/io.h>
#include <linux/gpio.h>
#include <linux/regulator/fixed.h>
#include <linux/regulator/machine.h>
#include <linux/i2c/twl.h>
#include <linux/mmc/host.h>
#include <linux/usb/phy.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include "common.h"
#include "mux.h"
#include "hsmmc.h"
#include "control.h"
#include "common-board-devices.h"
#include "gpmc.h"
#include "gpmc-smsc911x.h"
#define OMAP3LOGIC_SMSC911X_CS 1
#define OMAP3530_LV_SOM_MMC_GPIO_CD 110
#define OMAP3530_LV_SOM_MMC_GPIO_WP 126
#define OMAP3530_LV_SOM_SMSC911X_GPIO_IRQ 152
#define OMAP3_TORPEDO_MMC_GPIO_CD 127
#define OMAP3_TORPEDO_SMSC911X_GPIO_IRQ 129
static struct regulator_consumer_supply omap3logic_vmmc1_supply[] = {
REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
};
/* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
static struct regulator_init_data omap3logic_vmmc1 = {
.constraints = {
.name = "VMMC1",
.min_uV = 1850000,
.max_uV = 3150000,
.valid_modes_mask = REGULATOR_MODE_NORMAL
| REGULATOR_MODE_STANDBY,
.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
| REGULATOR_CHANGE_MODE
| REGULATOR_CHANGE_STATUS,
},
.num_consumer_supplies = ARRAY_SIZE(omap3logic_vmmc1_supply),
.consumer_supplies = omap3logic_vmmc1_supply,
};
static struct twl4030_gpio_platform_data omap3logic_gpio_data = {
.use_leds = true,
.pullups = BIT(1),
.pulldowns = BIT(2) | BIT(6) | BIT(7) | BIT(8)
| BIT(13) | BIT(15) | BIT(16) | BIT(17),
};
static struct twl4030_usb_data omap3logic_usb_data = {
.usb_mode = T2_USB_MODE_ULPI,
};
static struct twl4030_platform_data omap3logic_twldata = {
/* platform_data for children goes here */
.gpio = &omap3logic_gpio_data,
.vmmc1 = &omap3logic_vmmc1,
.usb = &omap3logic_usb_data,
};
static int __init omap3logic_i2c_init(void)
{
omap3_pmic_init("twl4030", &omap3logic_twldata);
return 0;
}
static struct omap2_hsmmc_info __initdata board_mmc_info[] = {
{
.name = "external",
.mmc = 1,
.caps = MMC_CAP_4_BIT_DATA,
.gpio_cd = -EINVAL,
.gpio_wp = -EINVAL,
},
{} /* Terminator */
};
static void __init board_mmc_init(void)
{
if (machine_is_omap3530_lv_som()) {
/* OMAP3530 LV SOM board */
board_mmc_info[0].gpio_cd = OMAP3530_LV_SOM_MMC_GPIO_CD;
board_mmc_info[0].gpio_wp = OMAP3530_LV_SOM_MMC_GPIO_WP;
omap_mux_init_signal("gpio_110", OMAP_PIN_OUTPUT);
omap_mux_init_signal("gpio_126", OMAP_PIN_OUTPUT);
} else if (machine_is_omap3_torpedo()) {
/* OMAP3 Torpedo board */
board_mmc_info[0].gpio_cd = OMAP3_TORPEDO_MMC_GPIO_CD;
omap_mux_init_signal("gpio_127", OMAP_PIN_OUTPUT);
} else {
/* unsupported board */
printk(KERN_ERR "%s(): unknown machine type\n", __func__);
return;
}
omap_hsmmc_init(board_mmc_info);
}
static struct omap_smsc911x_platform_data __initdata board_smsc911x_data = {
.cs = OMAP3LOGIC_SMSC911X_CS,
.gpio_irq = -EINVAL,
.gpio_reset = -EINVAL,
};
/* TODO/FIXME (comment by Peter Barada, LogicPD):
* Fix the PBIAS voltage for Torpedo MMC1 pins that
* are used for other needs (IRQs, etc). */
static void omap3torpedo_fix_pbias_voltage(void)
{
u16 control_pbias_offset = OMAP343X_CONTROL_PBIAS_LITE;
u32 reg;
if (machine_is_omap3_torpedo())
{
/* Set the bias for the pin */
reg = omap_ctrl_readl(control_pbias_offset);
reg &= ~OMAP343X_PBIASLITEPWRDNZ1;
omap_ctrl_writel(reg, control_pbias_offset);
/* 100ms delay required for PBIAS configuration */
msleep(100);
reg |= OMAP343X_PBIASLITEVMODE1;
reg |= OMAP343X_PBIASLITEPWRDNZ1;
omap_ctrl_writel(reg | 0x300, control_pbias_offset);
}
}
static inline void __init board_smsc911x_init(void)
{
if (machine_is_omap3530_lv_som()) {
/* OMAP3530 LV SOM board */
board_smsc911x_data.gpio_irq =
OMAP3530_LV_SOM_SMSC911X_GPIO_IRQ;
omap_mux_init_signal("gpio_152", OMAP_PIN_INPUT);
} else if (machine_is_omap3_torpedo()) {
/* OMAP3 Torpedo board */
board_smsc911x_data.gpio_irq = OMAP3_TORPEDO_SMSC911X_GPIO_IRQ;
omap_mux_init_signal("gpio_129", OMAP_PIN_INPUT);
} else {
/* unsupported board */
printk(KERN_ERR "%s(): unknown machine type\n", __func__);
return;
}
gpmc_smsc911x_init(&board_smsc911x_data);
}
#ifdef CONFIG_OMAP_MUX
static struct omap_board_mux board_mux[] __initdata = {
/* mUSB */
OMAP3_MUX(HSUSB0_CLK, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
OMAP3_MUX(HSUSB0_STP, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
OMAP3_MUX(HSUSB0_DIR, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
OMAP3_MUX(HSUSB0_NXT, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
OMAP3_MUX(HSUSB0_DATA0, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
OMAP3_MUX(HSUSB0_DATA1, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
OMAP3_MUX(HSUSB0_DATA2, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
OMAP3_MUX(HSUSB0_DATA3, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
OMAP3_MUX(HSUSB0_DATA4, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
OMAP3_MUX(HSUSB0_DATA5, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
OMAP3_MUX(HSUSB0_DATA6, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
OMAP3_MUX(HSUSB0_DATA7, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
{ .reg_offset = OMAP_MUX_TERMINATOR },
};
#endif
static struct regulator_consumer_supply dummy_supplies[] = {
REGULATOR_SUPPLY("vddvario", "smsc911x.0"),
REGULATOR_SUPPLY("vdd33a", "smsc911x.0"),
};
static void __init omap3logic_init(void)
{
regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
omap3torpedo_fix_pbias_voltage();
omap3logic_i2c_init();
omap_serial_init();
omap_sdrc_init(NULL, NULL);
board_mmc_init();
board_smsc911x_init();
usb_bind_phy("musb-hdrc.0.auto", 0, "twl4030_usb");
usb_musb_init(NULL);
/* Ensure SDRC pins are mux'd for self-refresh */
omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
}
MACHINE_START(OMAP3_TORPEDO, "Logic OMAP3 Torpedo board")
.atag_offset = 0x100,
.reserve = omap_reserve,
.map_io = omap3_map_io,
.init_early = omap35xx_init_early,
.init_irq = omap3_init_irq,
.init_machine = omap3logic_init,
.init_late = omap35xx_init_late,
.init_time = omap3_sync32k_timer_init,
.restart = omap3xxx_restart,
MACHINE_END
MACHINE_START(OMAP3530_LV_SOM, "OMAP Logic 3530 LV SOM board")
.atag_offset = 0x100,
.reserve = omap_reserve,
.map_io = omap3_map_io,
.init_early = omap35xx_init_early,
.init_irq = omap3_init_irq,
.init_machine = omap3logic_init,
.init_late = omap35xx_init_late,
.init_time = omap3_sync32k_timer_init,
.restart = omap3xxx_restart,
MACHINE_END