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linux/arch/arm/mach-ux500/board-mop500.c
Linus Walleij cf568c58eb mach-ux500: fix i2c0 device setup regression 
Adding two sets of I2C devices to the same bus doesn't quite work,
atleast not anymore. Stash one array and determine how much of it
shall be added instead.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2011-04-20 18:43:53 +02:00

478 lines
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/*
* Copyright (C) 2008-2009 ST-Ericsson
*
* Author: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com>
*
* 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/interrupt.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/i2c.h>
#include <linux/gpio.h>
#include <linux/amba/bus.h>
#include <linux/amba/pl022.h>
#include <linux/amba/serial.h>
#include <linux/spi/spi.h>
#include <linux/mfd/ab8500.h>
#include <linux/regulator/ab8500.h>
#include <linux/mfd/tc3589x.h>
#include <linux/mfd/tps6105x.h>
#include <linux/mfd/ab8500/gpio.h>
#include <linux/leds-lp5521.h>
#include <linux/input.h>
#include <linux/gpio_keys.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <plat/i2c.h>
#include <plat/ste_dma40.h>
#include <mach/hardware.h>
#include <mach/setup.h>
#include <mach/devices.h>
#include <mach/irqs.h>
#include "ste-dma40-db8500.h"
#include "devices-db8500.h"
#include "board-mop500.h"
#include "board-mop500-regulators.h"
static struct ab8500_gpio_platform_data ab8500_gpio_pdata = {
.gpio_base = MOP500_AB8500_GPIO(0),
.irq_base = MOP500_AB8500_VIR_GPIO_IRQ_BASE,
/* config_reg is the initial configuration of ab8500 pins.
* The pins can be configured as GPIO or alt functions based
* on value present in GpioSel1 to GpioSel6 and AlternatFunction
* register. This is the array of 7 configuration settings.
* One has to compile time decide these settings. Below is the
* explanation of these setting
* GpioSel1 = 0x00 => Pins GPIO1 to GPIO8 are not used as GPIO
* GpioSel2 = 0x1E => Pins GPIO10 to GPIO13 are configured as GPIO
* GpioSel3 = 0x80 => Pin GPIO24 is configured as GPIO
* GpioSel4 = 0x01 => Pin GPIo25 is configured as GPIO
* GpioSel5 = 0x7A => Pins GPIO34, GPIO36 to GPIO39 are conf as GPIO
* GpioSel6 = 0x00 => Pins GPIO41 & GPIo42 are not configured as GPIO
* AlternaFunction = 0x00 => If Pins GPIO10 to 13 are not configured
* as GPIO then this register selectes the alternate fucntions
*/
.config_reg = {0x00, 0x1E, 0x80, 0x01,
0x7A, 0x00, 0x00},
};
static struct ab8500_platform_data ab8500_platdata = {
.irq_base = MOP500_AB8500_IRQ_BASE,
.regulator_reg_init = ab8500_regulator_reg_init,
.num_regulator_reg_init = ARRAY_SIZE(ab8500_regulator_reg_init),
.regulator = ab8500_regulators,
.num_regulator = ARRAY_SIZE(ab8500_regulators),
.gpio = &ab8500_gpio_pdata,
};
static struct resource ab8500_resources[] = {
[0] = {
.start = IRQ_DB8500_AB8500,
.end = IRQ_DB8500_AB8500,
.flags = IORESOURCE_IRQ
}
};
struct platform_device ab8500_device = {
.name = "ab8500-i2c",
.id = 0,
.dev = {
.platform_data = &ab8500_platdata,
},
.num_resources = 1,
.resource = ab8500_resources,
};
/*
* TPS61052
*/
static struct tps6105x_platform_data mop500_tps61052_data = {
.mode = TPS6105X_MODE_VOLTAGE,
.regulator_data = &tps61052_regulator,
};
/*
* TC35892
*/
static void mop500_tc35892_init(struct tc3589x *tc3589x, unsigned int base)
{
mop500_sdi_tc35892_init();
}
static struct tc3589x_gpio_platform_data mop500_tc35892_gpio_data = {
.gpio_base = MOP500_EGPIO(0),
.setup = mop500_tc35892_init,
};
static struct tc3589x_platform_data mop500_tc35892_data = {
.block = TC3589x_BLOCK_GPIO,
.gpio = &mop500_tc35892_gpio_data,
.irq_base = MOP500_EGPIO_IRQ_BASE,
};
static struct lp5521_led_config lp5521_pri_led[] = {
[0] = {
.chan_nr = 0,
.led_current = 0x2f,
.max_current = 0x5f,
},
[1] = {
.chan_nr = 1,
.led_current = 0x2f,
.max_current = 0x5f,
},
[2] = {
.chan_nr = 2,
.led_current = 0x2f,
.max_current = 0x5f,
},
};
static struct lp5521_platform_data __initdata lp5521_pri_data = {
.label = "lp5521_pri",
.led_config = &lp5521_pri_led[0],
.num_channels = 3,
.clock_mode = LP5521_CLOCK_EXT,
};
static struct lp5521_led_config lp5521_sec_led[] = {
[0] = {
.chan_nr = 0,
.led_current = 0x2f,
.max_current = 0x5f,
},
[1] = {
.chan_nr = 1,
.led_current = 0x2f,
.max_current = 0x5f,
},
[2] = {
.chan_nr = 2,
.led_current = 0x2f,
.max_current = 0x5f,
},
};
static struct lp5521_platform_data __initdata lp5521_sec_data = {
.label = "lp5521_sec",
.led_config = &lp5521_sec_led[0],
.num_channels = 3,
.clock_mode = LP5521_CLOCK_EXT,
};
static struct i2c_board_info __initdata mop500_i2c0_devices[] = {
{
I2C_BOARD_INFO("tc3589x", 0x42),
.irq = NOMADIK_GPIO_TO_IRQ(217),
.platform_data = &mop500_tc35892_data,
},
/* I2C0 devices only available prior to HREFv60 */
{
I2C_BOARD_INFO("tps61052", 0x33),
.platform_data = &mop500_tps61052_data,
},
};
#define NUM_PRE_V60_I2C0_DEVICES 1
static struct i2c_board_info __initdata mop500_i2c2_devices[] = {
{
/* lp5521 LED driver, 1st device */
I2C_BOARD_INFO("lp5521", 0x33),
.platform_data = &lp5521_pri_data,
},
{
/* lp5521 LED driver, 2st device */
I2C_BOARD_INFO("lp5521", 0x34),
.platform_data = &lp5521_sec_data,
},
{
/* Light sensor Rohm BH1780GLI */
I2C_BOARD_INFO("bh1780", 0x29),
},
};
#define U8500_I2C_CONTROLLER(id, _slsu, _tft, _rft, clk, _sm) \
static struct nmk_i2c_controller u8500_i2c##id##_data = { \
/* \
* slave data setup time, which is \
* 250 ns,100ns,10ns which is 14,6,2 \
* respectively for a 48 Mhz \
* i2c clock \
*/ \
.slsu = _slsu, \
/* Tx FIFO threshold */ \
.tft = _tft, \
/* Rx FIFO threshold */ \
.rft = _rft, \
/* std. mode operation */ \
.clk_freq = clk, \
.sm = _sm, \
}
/*
* The board uses 4 i2c controllers, initialize all of
* them with slave data setup time of 250 ns,
* Tx & Rx FIFO threshold values as 1 and standard
* mode of operation
*/
U8500_I2C_CONTROLLER(0, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
U8500_I2C_CONTROLLER(1, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
U8500_I2C_CONTROLLER(2, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
U8500_I2C_CONTROLLER(3, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
static void __init mop500_i2c_init(void)
{
db8500_add_i2c0(&u8500_i2c0_data);
db8500_add_i2c1(&u8500_i2c1_data);
db8500_add_i2c2(&u8500_i2c2_data);
db8500_add_i2c3(&u8500_i2c3_data);
}
static struct gpio_keys_button mop500_gpio_keys[] = {
{
.desc = "SFH7741 Proximity Sensor",
.type = EV_SW,
.code = SW_FRONT_PROXIMITY,
.active_low = 0,
.can_disable = 1,
}
};
static struct regulator *prox_regulator;
static int mop500_prox_activate(struct device *dev);
static void mop500_prox_deactivate(struct device *dev);
static struct gpio_keys_platform_data mop500_gpio_keys_data = {
.buttons = mop500_gpio_keys,
.nbuttons = ARRAY_SIZE(mop500_gpio_keys),
.enable = mop500_prox_activate,
.disable = mop500_prox_deactivate,
};
static struct platform_device mop500_gpio_keys_device = {
.name = "gpio-keys",
.id = 0,
.dev = {
.platform_data = &mop500_gpio_keys_data,
},
};
static int mop500_prox_activate(struct device *dev)
{
prox_regulator = regulator_get(&mop500_gpio_keys_device.dev,
"vcc");
if (IS_ERR(prox_regulator)) {
dev_err(&mop500_gpio_keys_device.dev,
"no regulator\n");
return PTR_ERR(prox_regulator);
}
regulator_enable(prox_regulator);
return 0;
}
static void mop500_prox_deactivate(struct device *dev)
{
regulator_disable(prox_regulator);
regulator_put(prox_regulator);
}
/* add any platform devices here - TODO */
static struct platform_device *platform_devs[] __initdata = {
&mop500_gpio_keys_device,
};
#ifdef CONFIG_STE_DMA40
static struct stedma40_chan_cfg ssp0_dma_cfg_rx = {
.mode = STEDMA40_MODE_LOGICAL,
.dir = STEDMA40_PERIPH_TO_MEM,
.src_dev_type = DB8500_DMA_DEV8_SSP0_RX,
.dst_dev_type = STEDMA40_DEV_DST_MEMORY,
.src_info.data_width = STEDMA40_BYTE_WIDTH,
.dst_info.data_width = STEDMA40_BYTE_WIDTH,
};
static struct stedma40_chan_cfg ssp0_dma_cfg_tx = {
.mode = STEDMA40_MODE_LOGICAL,
.dir = STEDMA40_MEM_TO_PERIPH,
.src_dev_type = STEDMA40_DEV_SRC_MEMORY,
.dst_dev_type = DB8500_DMA_DEV8_SSP0_TX,
.src_info.data_width = STEDMA40_BYTE_WIDTH,
.dst_info.data_width = STEDMA40_BYTE_WIDTH,
};
#endif
static struct pl022_ssp_controller ssp0_platform_data = {
.bus_id = 0,
#ifdef CONFIG_STE_DMA40
.enable_dma = 1,
.dma_filter = stedma40_filter,
.dma_rx_param = &ssp0_dma_cfg_rx,
.dma_tx_param = &ssp0_dma_cfg_tx,
#else
.enable_dma = 0,
#endif
/* on this platform, gpio 31,142,144,214 &
* 224 are connected as chip selects
*/
.num_chipselect = 5,
};
static void __init mop500_spi_init(void)
{
db8500_add_ssp0(&ssp0_platform_data);
}
#ifdef CONFIG_STE_DMA40
static struct stedma40_chan_cfg uart0_dma_cfg_rx = {
.mode = STEDMA40_MODE_LOGICAL,
.dir = STEDMA40_PERIPH_TO_MEM,
.src_dev_type = DB8500_DMA_DEV13_UART0_RX,
.dst_dev_type = STEDMA40_DEV_DST_MEMORY,
.src_info.data_width = STEDMA40_BYTE_WIDTH,
.dst_info.data_width = STEDMA40_BYTE_WIDTH,
};
static struct stedma40_chan_cfg uart0_dma_cfg_tx = {
.mode = STEDMA40_MODE_LOGICAL,
.dir = STEDMA40_MEM_TO_PERIPH,
.src_dev_type = STEDMA40_DEV_SRC_MEMORY,
.dst_dev_type = DB8500_DMA_DEV13_UART0_TX,
.src_info.data_width = STEDMA40_BYTE_WIDTH,
.dst_info.data_width = STEDMA40_BYTE_WIDTH,
};
static struct stedma40_chan_cfg uart1_dma_cfg_rx = {
.mode = STEDMA40_MODE_LOGICAL,
.dir = STEDMA40_PERIPH_TO_MEM,
.src_dev_type = DB8500_DMA_DEV12_UART1_RX,
.dst_dev_type = STEDMA40_DEV_DST_MEMORY,
.src_info.data_width = STEDMA40_BYTE_WIDTH,
.dst_info.data_width = STEDMA40_BYTE_WIDTH,
};
static struct stedma40_chan_cfg uart1_dma_cfg_tx = {
.mode = STEDMA40_MODE_LOGICAL,
.dir = STEDMA40_MEM_TO_PERIPH,
.src_dev_type = STEDMA40_DEV_SRC_MEMORY,
.dst_dev_type = DB8500_DMA_DEV12_UART1_TX,
.src_info.data_width = STEDMA40_BYTE_WIDTH,
.dst_info.data_width = STEDMA40_BYTE_WIDTH,
};
static struct stedma40_chan_cfg uart2_dma_cfg_rx = {
.mode = STEDMA40_MODE_LOGICAL,
.dir = STEDMA40_PERIPH_TO_MEM,
.src_dev_type = DB8500_DMA_DEV11_UART2_RX,
.dst_dev_type = STEDMA40_DEV_DST_MEMORY,
.src_info.data_width = STEDMA40_BYTE_WIDTH,
.dst_info.data_width = STEDMA40_BYTE_WIDTH,
};
static struct stedma40_chan_cfg uart2_dma_cfg_tx = {
.mode = STEDMA40_MODE_LOGICAL,
.dir = STEDMA40_MEM_TO_PERIPH,
.src_dev_type = STEDMA40_DEV_SRC_MEMORY,
.dst_dev_type = DB8500_DMA_DEV11_UART2_TX,
.src_info.data_width = STEDMA40_BYTE_WIDTH,
.dst_info.data_width = STEDMA40_BYTE_WIDTH,
};
#endif
static struct amba_pl011_data uart0_plat = {
#ifdef CONFIG_STE_DMA40
.dma_filter = stedma40_filter,
.dma_rx_param = &uart0_dma_cfg_rx,
.dma_tx_param = &uart0_dma_cfg_tx,
#endif
};
static struct amba_pl011_data uart1_plat = {
#ifdef CONFIG_STE_DMA40
.dma_filter = stedma40_filter,
.dma_rx_param = &uart1_dma_cfg_rx,
.dma_tx_param = &uart1_dma_cfg_tx,
#endif
};
static struct amba_pl011_data uart2_plat = {
#ifdef CONFIG_STE_DMA40
.dma_filter = stedma40_filter,
.dma_rx_param = &uart2_dma_cfg_rx,
.dma_tx_param = &uart2_dma_cfg_tx,
#endif
};
static void __init mop500_uart_init(void)
{
db8500_add_uart0(&uart0_plat);
db8500_add_uart1(&uart1_plat);
db8500_add_uart2(&uart2_plat);
}
static void __init mop500_init_machine(void)
{
int i2c0_devs;
/*
* The HREFv60 board removed a GPIO expander and routed
* all these GPIO pins to the internal GPIO controller
* instead.
*/
if (machine_is_hrefv60())
mop500_gpio_keys[0].gpio = HREFV60_PROX_SENSE_GPIO;
else
mop500_gpio_keys[0].gpio = GPIO_PROX_SENSOR;
u8500_init_devices();
mop500_pins_init();
platform_add_devices(platform_devs, ARRAY_SIZE(platform_devs));
mop500_i2c_init();
mop500_sdi_init();
mop500_spi_init();
mop500_uart_init();
platform_device_register(&ab8500_device);
i2c0_devs = ARRAY_SIZE(mop500_i2c0_devices);
if (machine_is_hrefv60())
i2c0_devs -= NUM_PRE_V60_I2C0_DEVICES;
i2c_register_board_info(0, mop500_i2c0_devices, i2c0_devs);
i2c_register_board_info(2, mop500_i2c2_devices,
ARRAY_SIZE(mop500_i2c2_devices));
}
MACHINE_START(U8500, "ST-Ericsson MOP500 platform")
/* Maintainer: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> */
.boot_params = 0x100,
.map_io = u8500_map_io,
.init_irq = ux500_init_irq,
/* we re-use nomadik timer here */
.timer = &ux500_timer,
.init_machine = mop500_init_machine,
MACHINE_END
MACHINE_START(HREFV60, "ST-Ericsson U8500 Platform HREFv60+")
.boot_params = 0x100,
.map_io = u8500_map_io,
.init_irq = ux500_init_irq,
.timer = &ux500_timer,
.init_machine = mop500_init_machine,
MACHINE_END
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