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4b4f757c80
The HREFv60 variant of the MOP500 family of boards remove the external GPIO expander and route these pins back to some of the readily available internal GPIO pins instead. Based on a patch by Bibek Basu <bibek.basu@stericsson.com> for an internal kernel version. Cc: Bibek Basu <bibek.basu@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
429 lines
11 KiB
C
429 lines
11 KiB
C
/*
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* Copyright (C) 2008-2009 ST-Ericsson
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*
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* Author: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2, as
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* published by the Free Software Foundation.
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*
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/interrupt.h>
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#include <linux/platform_device.h>
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#include <linux/io.h>
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#include <linux/i2c.h>
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#include <linux/gpio.h>
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#include <linux/amba/bus.h>
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#include <linux/amba/pl022.h>
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#include <linux/amba/serial.h>
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#include <linux/spi/spi.h>
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#include <linux/mfd/ab8500.h>
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#include <linux/mfd/tc3589x.h>
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#include <linux/leds-lp5521.h>
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#include <linux/input.h>
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#include <linux/gpio_keys.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <plat/i2c.h>
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#include <plat/ste_dma40.h>
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#include <mach/hardware.h>
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#include <mach/setup.h>
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#include <mach/devices.h>
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#include <mach/irqs.h>
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#include "ste-dma40-db8500.h"
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#include "devices-db8500.h"
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#include "board-mop500.h"
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#include "board-mop500-regulators.h"
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static struct ab8500_platform_data ab8500_platdata = {
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.irq_base = MOP500_AB8500_IRQ_BASE,
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.regulator = ab8500_regulators,
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.num_regulator = ARRAY_SIZE(ab8500_regulators),
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};
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static struct resource ab8500_resources[] = {
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[0] = {
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.start = IRQ_DB8500_AB8500,
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.end = IRQ_DB8500_AB8500,
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.flags = IORESOURCE_IRQ
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}
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};
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struct platform_device ab8500_device = {
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.name = "ab8500-i2c",
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.id = 0,
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.dev = {
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.platform_data = &ab8500_platdata,
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},
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.num_resources = 1,
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.resource = ab8500_resources,
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};
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/*
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* TC35892
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*/
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static void mop500_tc35892_init(struct tc3589x *tc3589x, unsigned int base)
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{
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mop500_sdi_tc35892_init();
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}
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static struct tc3589x_gpio_platform_data mop500_tc35892_gpio_data = {
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.gpio_base = MOP500_EGPIO(0),
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.setup = mop500_tc35892_init,
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};
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static struct tc3589x_platform_data mop500_tc35892_data = {
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.block = TC3589x_BLOCK_GPIO,
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.gpio = &mop500_tc35892_gpio_data,
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.irq_base = MOP500_EGPIO_IRQ_BASE,
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};
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static struct lp5521_led_config lp5521_pri_led[] = {
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[0] = {
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.chan_nr = 0,
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.led_current = 0x2f,
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.max_current = 0x5f,
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},
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[1] = {
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.chan_nr = 1,
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.led_current = 0x2f,
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.max_current = 0x5f,
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},
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[2] = {
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.chan_nr = 2,
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.led_current = 0x2f,
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.max_current = 0x5f,
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},
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};
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static struct lp5521_platform_data __initdata lp5521_pri_data = {
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.label = "lp5521_pri",
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.led_config = &lp5521_pri_led[0],
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.num_channels = 3,
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.clock_mode = LP5521_CLOCK_EXT,
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};
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static struct lp5521_led_config lp5521_sec_led[] = {
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[0] = {
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.chan_nr = 0,
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.led_current = 0x2f,
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.max_current = 0x5f,
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},
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[1] = {
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.chan_nr = 1,
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.led_current = 0x2f,
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.max_current = 0x5f,
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},
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[2] = {
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.chan_nr = 2,
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.led_current = 0x2f,
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.max_current = 0x5f,
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},
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};
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static struct lp5521_platform_data __initdata lp5521_sec_data = {
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.label = "lp5521_sec",
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.led_config = &lp5521_sec_led[0],
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.num_channels = 3,
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.clock_mode = LP5521_CLOCK_EXT,
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};
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static struct i2c_board_info mop500_i2c0_devices[] = {
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{
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I2C_BOARD_INFO("tc3589x", 0x42),
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.irq = NOMADIK_GPIO_TO_IRQ(217),
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.platform_data = &mop500_tc35892_data,
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},
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};
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static struct i2c_board_info __initdata mop500_i2c2_devices[] = {
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{
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/* lp5521 LED driver, 1st device */
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I2C_BOARD_INFO("lp5521", 0x33),
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.platform_data = &lp5521_pri_data,
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},
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{
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/* lp5521 LED driver, 2st device */
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I2C_BOARD_INFO("lp5521", 0x34),
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.platform_data = &lp5521_sec_data,
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},
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{
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/* Light sensor Rohm BH1780GLI */
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I2C_BOARD_INFO("bh1780", 0x29),
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},
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};
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#define U8500_I2C_CONTROLLER(id, _slsu, _tft, _rft, clk, _sm) \
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static struct nmk_i2c_controller u8500_i2c##id##_data = { \
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/* \
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* slave data setup time, which is \
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* 250 ns,100ns,10ns which is 14,6,2 \
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* respectively for a 48 Mhz \
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* i2c clock \
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*/ \
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.slsu = _slsu, \
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/* Tx FIFO threshold */ \
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.tft = _tft, \
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/* Rx FIFO threshold */ \
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.rft = _rft, \
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/* std. mode operation */ \
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.clk_freq = clk, \
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.sm = _sm, \
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}
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/*
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* The board uses 4 i2c controllers, initialize all of
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* them with slave data setup time of 250 ns,
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* Tx & Rx FIFO threshold values as 1 and standard
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* mode of operation
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*/
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U8500_I2C_CONTROLLER(0, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
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U8500_I2C_CONTROLLER(1, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
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U8500_I2C_CONTROLLER(2, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
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U8500_I2C_CONTROLLER(3, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
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static void __init mop500_i2c_init(void)
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{
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db8500_add_i2c0(&u8500_i2c0_data);
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db8500_add_i2c1(&u8500_i2c1_data);
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db8500_add_i2c2(&u8500_i2c2_data);
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db8500_add_i2c3(&u8500_i2c3_data);
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}
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static struct gpio_keys_button mop500_gpio_keys[] = {
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{
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.desc = "SFH7741 Proximity Sensor",
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.type = EV_SW,
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.code = SW_FRONT_PROXIMITY,
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.active_low = 0,
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.can_disable = 1,
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}
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};
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static struct regulator *prox_regulator;
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static int mop500_prox_activate(struct device *dev);
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static void mop500_prox_deactivate(struct device *dev);
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static struct gpio_keys_platform_data mop500_gpio_keys_data = {
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.buttons = mop500_gpio_keys,
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.nbuttons = ARRAY_SIZE(mop500_gpio_keys),
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.enable = mop500_prox_activate,
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.disable = mop500_prox_deactivate,
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};
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static struct platform_device mop500_gpio_keys_device = {
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.name = "gpio-keys",
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.id = 0,
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.dev = {
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.platform_data = &mop500_gpio_keys_data,
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},
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};
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static int mop500_prox_activate(struct device *dev)
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{
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prox_regulator = regulator_get(&mop500_gpio_keys_device.dev,
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"vcc");
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if (IS_ERR(prox_regulator)) {
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dev_err(&mop500_gpio_keys_device.dev,
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"no regulator\n");
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return PTR_ERR(prox_regulator);
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}
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regulator_enable(prox_regulator);
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return 0;
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}
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static void mop500_prox_deactivate(struct device *dev)
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{
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regulator_disable(prox_regulator);
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regulator_put(prox_regulator);
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}
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/* add any platform devices here - TODO */
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static struct platform_device *platform_devs[] __initdata = {
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&mop500_gpio_keys_device,
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};
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#ifdef CONFIG_STE_DMA40
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static struct stedma40_chan_cfg ssp0_dma_cfg_rx = {
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.mode = STEDMA40_MODE_LOGICAL,
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.dir = STEDMA40_PERIPH_TO_MEM,
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.src_dev_type = DB8500_DMA_DEV8_SSP0_RX,
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.dst_dev_type = STEDMA40_DEV_DST_MEMORY,
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.src_info.data_width = STEDMA40_BYTE_WIDTH,
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.dst_info.data_width = STEDMA40_BYTE_WIDTH,
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};
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static struct stedma40_chan_cfg ssp0_dma_cfg_tx = {
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.mode = STEDMA40_MODE_LOGICAL,
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.dir = STEDMA40_MEM_TO_PERIPH,
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.src_dev_type = STEDMA40_DEV_SRC_MEMORY,
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.dst_dev_type = DB8500_DMA_DEV8_SSP0_TX,
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.src_info.data_width = STEDMA40_BYTE_WIDTH,
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.dst_info.data_width = STEDMA40_BYTE_WIDTH,
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};
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#endif
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static struct pl022_ssp_controller ssp0_platform_data = {
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.bus_id = 0,
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#ifdef CONFIG_STE_DMA40
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.enable_dma = 1,
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.dma_filter = stedma40_filter,
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.dma_rx_param = &ssp0_dma_cfg_rx,
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.dma_tx_param = &ssp0_dma_cfg_tx,
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#else
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.enable_dma = 0,
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#endif
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/* on this platform, gpio 31,142,144,214 &
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* 224 are connected as chip selects
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*/
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.num_chipselect = 5,
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};
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static void __init mop500_spi_init(void)
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{
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db8500_add_ssp0(&ssp0_platform_data);
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}
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#ifdef CONFIG_STE_DMA40
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static struct stedma40_chan_cfg uart0_dma_cfg_rx = {
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.mode = STEDMA40_MODE_LOGICAL,
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.dir = STEDMA40_PERIPH_TO_MEM,
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.src_dev_type = DB8500_DMA_DEV13_UART0_RX,
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.dst_dev_type = STEDMA40_DEV_DST_MEMORY,
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.src_info.data_width = STEDMA40_BYTE_WIDTH,
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.dst_info.data_width = STEDMA40_BYTE_WIDTH,
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};
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static struct stedma40_chan_cfg uart0_dma_cfg_tx = {
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.mode = STEDMA40_MODE_LOGICAL,
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.dir = STEDMA40_MEM_TO_PERIPH,
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.src_dev_type = STEDMA40_DEV_SRC_MEMORY,
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.dst_dev_type = DB8500_DMA_DEV13_UART0_TX,
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.src_info.data_width = STEDMA40_BYTE_WIDTH,
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.dst_info.data_width = STEDMA40_BYTE_WIDTH,
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};
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static struct stedma40_chan_cfg uart1_dma_cfg_rx = {
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.mode = STEDMA40_MODE_LOGICAL,
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.dir = STEDMA40_PERIPH_TO_MEM,
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.src_dev_type = DB8500_DMA_DEV12_UART1_RX,
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.dst_dev_type = STEDMA40_DEV_DST_MEMORY,
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.src_info.data_width = STEDMA40_BYTE_WIDTH,
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.dst_info.data_width = STEDMA40_BYTE_WIDTH,
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};
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static struct stedma40_chan_cfg uart1_dma_cfg_tx = {
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.mode = STEDMA40_MODE_LOGICAL,
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.dir = STEDMA40_MEM_TO_PERIPH,
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.src_dev_type = STEDMA40_DEV_SRC_MEMORY,
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.dst_dev_type = DB8500_DMA_DEV12_UART1_TX,
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.src_info.data_width = STEDMA40_BYTE_WIDTH,
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.dst_info.data_width = STEDMA40_BYTE_WIDTH,
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};
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static struct stedma40_chan_cfg uart2_dma_cfg_rx = {
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.mode = STEDMA40_MODE_LOGICAL,
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.dir = STEDMA40_PERIPH_TO_MEM,
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.src_dev_type = DB8500_DMA_DEV11_UART2_RX,
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.dst_dev_type = STEDMA40_DEV_DST_MEMORY,
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.src_info.data_width = STEDMA40_BYTE_WIDTH,
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.dst_info.data_width = STEDMA40_BYTE_WIDTH,
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};
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static struct stedma40_chan_cfg uart2_dma_cfg_tx = {
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.mode = STEDMA40_MODE_LOGICAL,
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.dir = STEDMA40_MEM_TO_PERIPH,
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.src_dev_type = STEDMA40_DEV_SRC_MEMORY,
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.dst_dev_type = DB8500_DMA_DEV11_UART2_TX,
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.src_info.data_width = STEDMA40_BYTE_WIDTH,
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.dst_info.data_width = STEDMA40_BYTE_WIDTH,
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};
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#endif
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static struct amba_pl011_data uart0_plat = {
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#ifdef CONFIG_STE_DMA40
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.dma_filter = stedma40_filter,
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.dma_rx_param = &uart0_dma_cfg_rx,
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.dma_tx_param = &uart0_dma_cfg_tx,
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#endif
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};
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static struct amba_pl011_data uart1_plat = {
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#ifdef CONFIG_STE_DMA40
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.dma_filter = stedma40_filter,
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.dma_rx_param = &uart1_dma_cfg_rx,
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.dma_tx_param = &uart1_dma_cfg_tx,
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#endif
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};
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static struct amba_pl011_data uart2_plat = {
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#ifdef CONFIG_STE_DMA40
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.dma_filter = stedma40_filter,
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.dma_rx_param = &uart2_dma_cfg_rx,
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.dma_tx_param = &uart2_dma_cfg_tx,
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#endif
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};
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static void __init mop500_uart_init(void)
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{
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db8500_add_uart0(&uart0_plat);
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db8500_add_uart1(&uart1_plat);
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db8500_add_uart2(&uart2_plat);
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}
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static void __init mop500_init_machine(void)
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{
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/*
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* The HREFv60 board removed a GPIO expander and routed
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* all these GPIO pins to the internal GPIO controller
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* instead.
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*/
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if (machine_is_hrefv60())
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mop500_gpio_keys[0].gpio = HREFV60_PROX_SENSE_GPIO;
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else
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mop500_gpio_keys[0].gpio = GPIO_PROX_SENSOR;
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u8500_init_devices();
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mop500_pins_init();
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platform_add_devices(platform_devs, ARRAY_SIZE(platform_devs));
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mop500_i2c_init();
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mop500_sdi_init();
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mop500_spi_init();
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mop500_uart_init();
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platform_device_register(&ab8500_device);
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i2c_register_board_info(0, mop500_i2c0_devices,
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ARRAY_SIZE(mop500_i2c0_devices));
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i2c_register_board_info(2, mop500_i2c2_devices,
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ARRAY_SIZE(mop500_i2c2_devices));
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}
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MACHINE_START(U8500, "ST-Ericsson MOP500 platform")
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/* Maintainer: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> */
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.boot_params = 0x100,
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.map_io = u8500_map_io,
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.init_irq = ux500_init_irq,
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/* we re-use nomadik timer here */
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.timer = &ux500_timer,
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.init_machine = mop500_init_machine,
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MACHINE_END
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MACHINE_START(HREFV60, "ST-Ericsson U8500 Platform HREFv60+")
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.boot_params = 0x100,
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.map_io = u8500_map_io,
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.init_irq = ux500_init_irq,
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.timer = &ux500_timer,
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.init_machine = mop500_init_machine,
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MACHINE_END
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