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linux/arch/arm/mach-omap2/board-omap3logic.c
Paul Walmsley 4805734bcc OMAP2+: io: split omap2_init_common_hw() 
Split omap2_init_common_hw() into two functions.  The first,
omap2_init_common_infrastructure(), initializes the hwmod code and
data, the OMAP PM code, and the clock code and data.  The second,
omap2_init_common_devices(), handles any other early device
initialization that, for whatever reason, has not been or cannot be
moved to initcalls or early platform devices.

This patch is required for the hwmod postsetup patch, which allows
board files to change the state that hwmods should be placed into at
the conclusion of the hwmod _setup() function.  For example, for a
board whose creators wish to ensure watchdog coverage across the
entire kernel boot process, code to change the watchdog's postsetup
state will be added in the board-*.c file between the
omap2_init_common_infrastructure() and omap2_init_common_devices() function
calls.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Tony Lindgren <tony@atomide.com>
2010-12-21 19:55:11 -07:00

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6.2 KiB
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/*
* linux/arch/arm/mach-omap2/board-omap3logic.c
*
* Copyright (C) 2010 Li-Pro.Net
* Stephan Linz <linz@li-pro.net>
*
* Copyright (C) 2010 Logic Product Development, Inc.
* Peter Barada <peter.barada@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/machine.h>
#include <linux/i2c/twl.h>
#include <linux/mmc/host.h>
#include <mach/hardware.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include "mux.h"
#include "hsmmc.h"
#include "timer-gp.h"
#include "control.h"
#include <plat/mux.h>
#include <plat/board.h>
#include <plat/common.h>
#include <plat/gpmc-smsc911x.h>
#include <plat/gpmc.h>
#include <plat/sdrc.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 = {
.supply = "vmmc",
};
/* 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 = 1,
.consumer_supplies = &omap3logic_vmmc1_supply,
};
static struct twl4030_gpio_platform_data omap3logic_gpio_data = {
.gpio_base = OMAP_MAX_GPIO_LINES,
.irq_base = TWL4030_GPIO_IRQ_BASE,
.irq_end = TWL4030_GPIO_IRQ_END,
.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_platform_data omap3logic_twldata = {
.irq_base = TWL4030_IRQ_BASE,
.irq_end = TWL4030_IRQ_END,
/* platform_data for children goes here */
.gpio = &omap3logic_gpio_data,
.vmmc1 = &omap3logic_vmmc1,
};
static struct i2c_board_info __initdata omap3logic_i2c_boardinfo[] = {
{
I2C_BOARD_INFO("twl4030", 0x48),
.flags = I2C_CLIENT_WAKE,
.irq = INT_34XX_SYS_NIRQ,
.platform_data = &omap3logic_twldata,
},
};
static int __init omap3logic_i2c_init(void)
{
omap_register_i2c_bus(1, 2600, omap3logic_i2c_boardinfo,
ARRAY_SIZE(omap3logic_i2c_boardinfo));
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;
}
omap2_hsmmc_init(board_mmc_info);
/* link regulators to MMC adapters */
omap3logic_vmmc1_supply.dev = board_mmc_info[0].dev;
}
static struct omap_smsc911x_platform_data __initdata board_smsc911x_data = {
.cs = OMAP3LOGIC_SMSC911X_CS,
.gpio_irq = -EINVAL,
.gpio_reset = -EINVAL,
.flags = IORESOURCE_IRQ_LOWLEVEL,
};
/* 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);
}
static void __init omap3logic_init_irq(void)
{
omap2_init_common_infrastructure();
omap2_init_common_devices(NULL, NULL);
omap_init_irq();
}
#ifdef CONFIG_OMAP_MUX
static struct omap_board_mux board_mux[] __initdata = {
{ .reg_offset = OMAP_MUX_TERMINATOR },
};
#endif
static void __init omap3logic_init(void)
{
omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
omap3torpedo_fix_pbias_voltage();
omap3logic_i2c_init();
omap_serial_init();
board_mmc_init();
board_smsc911x_init();
/* 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")
.boot_params = 0x80000100,
.map_io = omap3_map_io,
.init_irq = omap3logic_init_irq,
.init_machine = omap3logic_init,
.timer = &omap_timer,
MACHINE_END
MACHINE_START(OMAP3530_LV_SOM, "OMAP Logic 3530 LV SOM board")
.boot_params = 0x80000100,
.map_io = omap3_map_io,
.init_irq = omap3logic_init_irq,
.init_machine = omap3logic_init,
.timer = &omap_timer,
MACHINE_END
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