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linux/arch/arm/mach-mx3/mach-mx31moboard.c
Andres Salomon 4ec1b54c4d mfd: mfd_cell is now implicitly available to mc13xxx drivers 
The cell's platform_data is now accessed with a helper function;
change clients to use that, and remove the now-unused data_size.

Note that mfd-core no longer makes a copy of platform_data, but the
mc13xxx-core driver creates the pdata structures on the stack.  In
order to get around that, the various ARM mach types that set the
pdata have been changed to hold the variable in static (global) memory.
Also note that __initdata references in aforementioned pdata structs
have been dropped.

Signed-off-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2011-03-23 10:41:54 +01:00

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/*
* Copyright (C) 2008 Valentin Longchamp, EPFL Mobots group
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <linux/gfp.h>
#include <linux/gpio.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/leds.h>
#include <linux/memory.h>
#include <linux/mtd/physmap.h>
#include <linux/mtd/partitions.h>
#include <linux/platform_device.h>
#include <linux/regulator/machine.h>
#include <linux/mfd/mc13783.h>
#include <linux/spi/spi.h>
#include <linux/types.h>
#include <linux/usb/otg.h>
#include <linux/usb/ulpi.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <asm/mach/map.h>
#include <mach/board-mx31moboard.h>
#include <mach/common.h>
#include <mach/hardware.h>
#include <mach/iomux-mx3.h>
#include <mach/ipu.h>
#include <mach/mx3_camera.h>
#include <mach/spi.h>
#include <mach/ulpi.h>
#include "devices-imx31.h"
#include "devices.h"
static unsigned int moboard_pins[] = {
/* UART0 */
MX31_PIN_TXD1__TXD1, MX31_PIN_RXD1__RXD1,
MX31_PIN_CTS1__GPIO2_7,
/* UART4 */
MX31_PIN_PC_RST__CTS5, MX31_PIN_PC_VS2__RTS5,
MX31_PIN_PC_BVD2__TXD5, MX31_PIN_PC_BVD1__RXD5,
/* I2C0 */
MX31_PIN_I2C_DAT__I2C1_SDA, MX31_PIN_I2C_CLK__I2C1_SCL,
/* I2C1 */
MX31_PIN_DCD_DTE1__I2C2_SDA, MX31_PIN_RI_DTE1__I2C2_SCL,
/* SDHC1 */
MX31_PIN_SD1_DATA3__SD1_DATA3, MX31_PIN_SD1_DATA2__SD1_DATA2,
MX31_PIN_SD1_DATA1__SD1_DATA1, MX31_PIN_SD1_DATA0__SD1_DATA0,
MX31_PIN_SD1_CLK__SD1_CLK, MX31_PIN_SD1_CMD__SD1_CMD,
MX31_PIN_ATA_CS0__GPIO3_26, MX31_PIN_ATA_CS1__GPIO3_27,
/* USB reset */
MX31_PIN_GPIO1_0__GPIO1_0,
/* USB OTG */
MX31_PIN_USBOTG_DATA0__USBOTG_DATA0,
MX31_PIN_USBOTG_DATA1__USBOTG_DATA1,
MX31_PIN_USBOTG_DATA2__USBOTG_DATA2,
MX31_PIN_USBOTG_DATA3__USBOTG_DATA3,
MX31_PIN_USBOTG_DATA4__USBOTG_DATA4,
MX31_PIN_USBOTG_DATA5__USBOTG_DATA5,
MX31_PIN_USBOTG_DATA6__USBOTG_DATA6,
MX31_PIN_USBOTG_DATA7__USBOTG_DATA7,
MX31_PIN_USBOTG_CLK__USBOTG_CLK, MX31_PIN_USBOTG_DIR__USBOTG_DIR,
MX31_PIN_USBOTG_NXT__USBOTG_NXT, MX31_PIN_USBOTG_STP__USBOTG_STP,
MX31_PIN_USB_OC__GPIO1_30,
/* USB H2 */
MX31_PIN_USBH2_DATA0__USBH2_DATA0,
MX31_PIN_USBH2_DATA1__USBH2_DATA1,
MX31_PIN_STXD3__USBH2_DATA2, MX31_PIN_SRXD3__USBH2_DATA3,
MX31_PIN_SCK3__USBH2_DATA4, MX31_PIN_SFS3__USBH2_DATA5,
MX31_PIN_STXD6__USBH2_DATA6, MX31_PIN_SRXD6__USBH2_DATA7,
MX31_PIN_USBH2_CLK__USBH2_CLK, MX31_PIN_USBH2_DIR__USBH2_DIR,
MX31_PIN_USBH2_NXT__USBH2_NXT, MX31_PIN_USBH2_STP__USBH2_STP,
MX31_PIN_SCK6__GPIO1_25,
/* LEDs */
MX31_PIN_SVEN0__GPIO2_0, MX31_PIN_STX0__GPIO2_1,
MX31_PIN_SRX0__GPIO2_2, MX31_PIN_SIMPD0__GPIO2_3,
/* SPI1 */
MX31_PIN_CSPI2_MOSI__MOSI, MX31_PIN_CSPI2_MISO__MISO,
MX31_PIN_CSPI2_SCLK__SCLK, MX31_PIN_CSPI2_SPI_RDY__SPI_RDY,
MX31_PIN_CSPI2_SS0__SS0, MX31_PIN_CSPI2_SS2__SS2,
/* Atlas IRQ */
MX31_PIN_GPIO1_3__GPIO1_3,
/* SPI2 */
MX31_PIN_CSPI3_MOSI__MOSI, MX31_PIN_CSPI3_MISO__MISO,
MX31_PIN_CSPI3_SCLK__SCLK, MX31_PIN_CSPI3_SPI_RDY__SPI_RDY,
MX31_PIN_CSPI2_SS1__CSPI3_SS1,
};
static struct physmap_flash_data mx31moboard_flash_data = {
.width = 2,
};
static struct resource mx31moboard_flash_resource = {
.start = 0xa0000000,
.end = 0xa1ffffff,
.flags = IORESOURCE_MEM,
};
static struct platform_device mx31moboard_flash = {
.name = "physmap-flash",
.id = 0,
.dev = {
.platform_data = &mx31moboard_flash_data,
},
.resource = &mx31moboard_flash_resource,
.num_resources = 1,
};
static int moboard_uart0_init(struct platform_device *pdev)
{
int ret = gpio_request(IOMUX_TO_GPIO(MX31_PIN_CTS1), "uart0-cts-hack");
if (ret)
return ret;
ret = gpio_direction_output(IOMUX_TO_GPIO(MX31_PIN_CTS1), 0);
if (ret)
gpio_free(IOMUX_TO_GPIO(MX31_PIN_CTS1));
return ret;
}
static void moboard_uart0_exit(struct platform_device *pdev)
{
gpio_free(IOMUX_TO_GPIO(MX31_PIN_CTS1));
}
static const struct imxuart_platform_data uart0_pdata __initconst = {
.init = moboard_uart0_init,
.exit = moboard_uart0_exit,
};
static const struct imxuart_platform_data uart4_pdata __initconst = {
.flags = IMXUART_HAVE_RTSCTS,
};
static const struct imxi2c_platform_data moboard_i2c0_data __initconst = {
.bitrate = 400000,
};
static const struct imxi2c_platform_data moboard_i2c1_data __initconst = {
.bitrate = 100000,
};
static int moboard_spi1_cs[] = {
MXC_SPI_CS(0),
MXC_SPI_CS(2),
};
static const struct spi_imx_master moboard_spi1_pdata __initconst = {
.chipselect = moboard_spi1_cs,
.num_chipselect = ARRAY_SIZE(moboard_spi1_cs),
};
static struct regulator_consumer_supply sdhc_consumers[] = {
{
.dev_name = "mxc-mmc.0",
.supply = "sdhc0_vcc",
},
{
.dev_name = "mxc-mmc.1",
.supply = "sdhc1_vcc",
},
};
static struct regulator_init_data sdhc_vreg_data = {
.constraints = {
.min_uV = 2700000,
.max_uV = 3000000,
.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS,
.valid_modes_mask = REGULATOR_MODE_NORMAL |
REGULATOR_MODE_FAST,
.always_on = 0,
.boot_on = 1,
},
.num_consumer_supplies = ARRAY_SIZE(sdhc_consumers),
.consumer_supplies = sdhc_consumers,
};
static struct regulator_consumer_supply cam_consumers[] = {
{
.dev = &mx3_camera.dev,
.supply = "cam_vcc",
},
};
static struct regulator_init_data cam_vreg_data = {
.constraints = {
.min_uV = 2700000,
.max_uV = 3000000,
.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS,
.valid_modes_mask = REGULATOR_MODE_NORMAL |
REGULATOR_MODE_FAST,
.always_on = 0,
.boot_on = 1,
},
.num_consumer_supplies = ARRAY_SIZE(cam_consumers),
.consumer_supplies = cam_consumers,
};
static struct mc13xxx_regulator_init_data moboard_regulators[] = {
{
.id = MC13783_REG_VMMC1,
.init_data = &sdhc_vreg_data,
},
{
.id = MC13783_REG_VCAM,
.init_data = &cam_vreg_data,
},
};
static struct mc13783_led_platform_data moboard_led[] = {
{
.id = MC13783_LED_R1,
.name = "coreboard-led-4:red",
.max_current = 2,
},
{
.id = MC13783_LED_G1,
.name = "coreboard-led-4:green",
.max_current = 2,
},
{
.id = MC13783_LED_B1,
.name = "coreboard-led-4:blue",
.max_current = 2,
},
{
.id = MC13783_LED_R2,
.name = "coreboard-led-5:red",
.max_current = 3,
},
{
.id = MC13783_LED_G2,
.name = "coreboard-led-5:green",
.max_current = 3,
},
{
.id = MC13783_LED_B2,
.name = "coreboard-led-5:blue",
.max_current = 3,
},
};
static struct mc13783_leds_platform_data moboard_leds = {
.num_leds = ARRAY_SIZE(moboard_led),
.led = moboard_led,
.flags = MC13783_LED_SLEWLIMTC,
.abmode = MC13783_LED_AB_DISABLED,
.tc1_period = MC13783_LED_PERIOD_10MS,
.tc2_period = MC13783_LED_PERIOD_10MS,
};
static struct mc13xxx_platform_data moboard_pmic = {
.regulators = {
.regulators = moboard_regulators,
.num_regulators = ARRAY_SIZE(moboard_regulators),
},
.leds = &moboard_leds,
.flags = MC13XXX_USE_REGULATOR | MC13XXX_USE_RTC |
MC13XXX_USE_ADC | MC13XXX_USE_LED,
};
static struct spi_board_info moboard_spi_board_info[] __initdata = {
{
.modalias = "mc13783",
.irq = IOMUX_TO_IRQ(MX31_PIN_GPIO1_3),
.max_speed_hz = 300000,
.bus_num = 1,
.chip_select = 0,
.platform_data = &moboard_pmic,
.mode = SPI_CS_HIGH,
},
};
static int moboard_spi2_cs[] = {
MXC_SPI_CS(1),
};
static const struct spi_imx_master moboard_spi2_pdata __initconst = {
.chipselect = moboard_spi2_cs,
.num_chipselect = ARRAY_SIZE(moboard_spi2_cs),
};
#define SDHC1_CD IOMUX_TO_GPIO(MX31_PIN_ATA_CS0)
#define SDHC1_WP IOMUX_TO_GPIO(MX31_PIN_ATA_CS1)
static int moboard_sdhc1_get_ro(struct device *dev)
{
return !gpio_get_value(SDHC1_WP);
}
static int moboard_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
void *data)
{
int ret;
ret = gpio_request(SDHC1_CD, "sdhc-detect");
if (ret)
return ret;
gpio_direction_input(SDHC1_CD);
ret = gpio_request(SDHC1_WP, "sdhc-wp");
if (ret)
goto err_gpio_free;
gpio_direction_input(SDHC1_WP);
ret = request_irq(gpio_to_irq(SDHC1_CD), detect_irq,
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
"sdhc1-card-detect", data);
if (ret)
goto err_gpio_free_2;
return 0;
err_gpio_free_2:
gpio_free(SDHC1_WP);
err_gpio_free:
gpio_free(SDHC1_CD);
return ret;
}
static void moboard_sdhc1_exit(struct device *dev, void *data)
{
free_irq(gpio_to_irq(SDHC1_CD), data);
gpio_free(SDHC1_WP);
gpio_free(SDHC1_CD);
}
static const struct imxmmc_platform_data sdhc1_pdata __initconst = {
.get_ro = moboard_sdhc1_get_ro,
.init = moboard_sdhc1_init,
.exit = moboard_sdhc1_exit,
};
/*
* this pin is dedicated for all mx31moboard systems, so we do it here
*/
#define USB_RESET_B IOMUX_TO_GPIO(MX31_PIN_GPIO1_0)
#define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
PAD_CTL_ODE_CMOS)
#define OTG_EN_B IOMUX_TO_GPIO(MX31_PIN_USB_OC)
#define USBH2_EN_B IOMUX_TO_GPIO(MX31_PIN_SCK6)
static void usb_xcvr_reset(void)
{
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA0, USB_PAD_CFG | PAD_CTL_100K_PD);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA1, USB_PAD_CFG | PAD_CTL_100K_PD);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA2, USB_PAD_CFG | PAD_CTL_100K_PD);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA3, USB_PAD_CFG | PAD_CTL_100K_PD);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA4, USB_PAD_CFG | PAD_CTL_100K_PD);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA5, USB_PAD_CFG | PAD_CTL_100K_PD);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA6, USB_PAD_CFG | PAD_CTL_100K_PD);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA7, USB_PAD_CFG | PAD_CTL_100K_PD);
mxc_iomux_set_pad(MX31_PIN_USBOTG_CLK, USB_PAD_CFG | PAD_CTL_100K_PU);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DIR, USB_PAD_CFG | PAD_CTL_100K_PU);
mxc_iomux_set_pad(MX31_PIN_USBOTG_NXT, USB_PAD_CFG | PAD_CTL_100K_PU);
mxc_iomux_set_pad(MX31_PIN_USBOTG_STP, USB_PAD_CFG | PAD_CTL_100K_PU);
mxc_iomux_set_gpr(MUX_PGP_UH2, true);
mxc_iomux_set_pad(MX31_PIN_USBH2_CLK, USB_PAD_CFG | PAD_CTL_100K_PU);
mxc_iomux_set_pad(MX31_PIN_USBH2_DIR, USB_PAD_CFG | PAD_CTL_100K_PU);
mxc_iomux_set_pad(MX31_PIN_USBH2_NXT, USB_PAD_CFG | PAD_CTL_100K_PU);
mxc_iomux_set_pad(MX31_PIN_USBH2_STP, USB_PAD_CFG | PAD_CTL_100K_PU);
mxc_iomux_set_pad(MX31_PIN_USBH2_DATA0, USB_PAD_CFG | PAD_CTL_100K_PD);
mxc_iomux_set_pad(MX31_PIN_USBH2_DATA1, USB_PAD_CFG | PAD_CTL_100K_PD);
mxc_iomux_set_pad(MX31_PIN_SRXD6, USB_PAD_CFG | PAD_CTL_100K_PD);
mxc_iomux_set_pad(MX31_PIN_STXD6, USB_PAD_CFG | PAD_CTL_100K_PD);
mxc_iomux_set_pad(MX31_PIN_SFS3, USB_PAD_CFG | PAD_CTL_100K_PD);
mxc_iomux_set_pad(MX31_PIN_SCK3, USB_PAD_CFG | PAD_CTL_100K_PD);
mxc_iomux_set_pad(MX31_PIN_SRXD3, USB_PAD_CFG | PAD_CTL_100K_PD);
mxc_iomux_set_pad(MX31_PIN_STXD3, USB_PAD_CFG | PAD_CTL_100K_PD);
gpio_request(OTG_EN_B, "usb-udc-en");
gpio_direction_output(OTG_EN_B, 0);
gpio_request(USBH2_EN_B, "usbh2-en");
gpio_direction_output(USBH2_EN_B, 0);
gpio_request(USB_RESET_B, "usb-reset");
gpio_direction_output(USB_RESET_B, 0);
mdelay(1);
gpio_set_value(USB_RESET_B, 1);
mdelay(1);
}
static int moboard_usbh2_init_hw(struct platform_device *pdev)
{
return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED);
}
static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
.init = moboard_usbh2_init_hw,
.portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
};
static int __init moboard_usbh2_init(void)
{
struct platform_device *pdev;
usbh2_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
ULPI_OTG_DRVVBUS_EXT);
if (!usbh2_pdata.otg)
return -ENODEV;
pdev = imx31_add_mxc_ehci_hs(2, &usbh2_pdata);
if (IS_ERR(pdev))
return PTR_ERR(pdev);
return 0;
}
static struct gpio_led mx31moboard_leds[] = {
{
.name = "coreboard-led-0:red:running",
.default_trigger = "heartbeat",
.gpio = IOMUX_TO_GPIO(MX31_PIN_SVEN0),
}, {
.name = "coreboard-led-1:red",
.gpio = IOMUX_TO_GPIO(MX31_PIN_STX0),
}, {
.name = "coreboard-led-2:red",
.gpio = IOMUX_TO_GPIO(MX31_PIN_SRX0),
}, {
.name = "coreboard-led-3:red",
.gpio = IOMUX_TO_GPIO(MX31_PIN_SIMPD0),
},
};
static struct gpio_led_platform_data mx31moboard_led_pdata = {
.num_leds = ARRAY_SIZE(mx31moboard_leds),
.leds = mx31moboard_leds,
};
static struct platform_device mx31moboard_leds_device = {
.name = "leds-gpio",
.id = -1,
.dev = {
.platform_data = &mx31moboard_led_pdata,
},
};
static struct ipu_platform_data mx3_ipu_data = {
.irq_base = MXC_IPU_IRQ_START,
};
static struct platform_device *devices[] __initdata = {
&mx31moboard_flash,
&mx31moboard_leds_device,
};
static struct mx3_camera_pdata camera_pdata = {
.dma_dev = &mx3_ipu.dev,
.flags = MX3_CAMERA_DATAWIDTH_8 | MX3_CAMERA_DATAWIDTH_10,
.mclk_10khz = 4800,
};
#define CAMERA_BUF_SIZE (4*1024*1024)
static int __init mx31moboard_cam_alloc_dma(const size_t buf_size)
{
dma_addr_t dma_handle;
void *buf;
int dma;
if (buf_size < 2 * 1024 * 1024)
return -EINVAL;
buf = dma_alloc_coherent(NULL, buf_size, &dma_handle, GFP_KERNEL);
if (!buf) {
pr_err("%s: cannot allocate camera buffer-memory\n", __func__);
return -ENOMEM;
}
memset(buf, 0, buf_size);
dma = dma_declare_coherent_memory(&mx3_camera.dev,
dma_handle, dma_handle, buf_size,
DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE);
/* The way we call dma_declare_coherent_memory only a malloc can fail */
return dma & DMA_MEMORY_MAP ? 0 : -ENOMEM;
}
static int mx31moboard_baseboard;
core_param(mx31moboard_baseboard, mx31moboard_baseboard, int, 0444);
/*
* Board specific initialization.
*/
static void __init mx31moboard_init(void)
{
mxc_iomux_setup_multiple_pins(moboard_pins, ARRAY_SIZE(moboard_pins),
"moboard");
platform_add_devices(devices, ARRAY_SIZE(devices));
imx31_add_imx_uart0(&uart0_pdata);
imx31_add_imx_uart4(&uart4_pdata);
imx31_add_imx_i2c0(&moboard_i2c0_data);
imx31_add_imx_i2c1(&moboard_i2c1_data);
imx31_add_spi_imx1(&moboard_spi1_pdata);
imx31_add_spi_imx2(&moboard_spi2_pdata);
gpio_request(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3), "pmic-irq");
gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3));
spi_register_board_info(moboard_spi_board_info,
ARRAY_SIZE(moboard_spi_board_info));
imx31_add_mxc_mmc(0, &sdhc1_pdata);
mxc_register_device(&mx3_ipu, &mx3_ipu_data);
if (!mx31moboard_cam_alloc_dma(CAMERA_BUF_SIZE))
mxc_register_device(&mx3_camera, &camera_pdata);
usb_xcvr_reset();
moboard_usbh2_init();
switch (mx31moboard_baseboard) {
case MX31NOBOARD:
break;
case MX31DEVBOARD:
mx31moboard_devboard_init();
break;
case MX31MARXBOT:
mx31moboard_marxbot_init();
break;
case MX31SMARTBOT:
case MX31EYEBOT:
mx31moboard_smartbot_init(mx31moboard_baseboard);
break;
default:
printk(KERN_ERR "Illegal mx31moboard_baseboard type %d\n",
mx31moboard_baseboard);
}
}
static void __init mx31moboard_timer_init(void)
{
mx31_clocks_init(26000000);
}
struct sys_timer mx31moboard_timer = {
.init = mx31moboard_timer_init,
};
MACHINE_START(MX31MOBOARD, "EPFL Mobots mx31moboard")
/* Maintainer: Valentin Longchamp, EPFL Mobots group */
.boot_params = MX3x_PHYS_OFFSET + 0x100,
.map_io = mx31_map_io,
.init_early = imx31_init_early,
.init_irq = mx31_init_irq,
.timer = &mx31moboard_timer,
.init_machine = mx31moboard_init,
MACHINE_END
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