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linux-2.6/arch/arm/mach-imx/mach-mx27_3ds.c
Jürgen Lambrecht 1459fc5f6d Enable RTC driver. 
The MC13783 MFD also contains an RTC. Enable it.
To avoid "No RTC device found, ALARM timers will not wake from suspend",
this patch is needed:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=c008ba58af24dc5d0d8e9fe6e59d876910254761

Signed-off-by: Jürgen Lambrecht <J.Lambrecht@televic.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-07-07 10:01:15 +02:00

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/*
* Copyright 2009 Freescale Semiconductor, Inc. All Rights Reserved.
*
* Author: Fabio Estevam <fabio.estevam@freescale.com>
*
* 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.
*/
/*
* This machine is known as:
* - i.MX27 3-Stack Development System
* - i.MX27 Platform Development Kit (i.MX27 PDK)
*/
#include <linux/platform_device.h>
#include <linux/gpio.h>
#include <linux/irq.h>
#include <linux/usb/otg.h>
#include <linux/usb/ulpi.h>
#include <linux/delay.h>
#include <linux/mfd/mc13783.h>
#include <linux/spi/spi.h>
#include <linux/regulator/machine.h>
#include <linux/spi/l4f00242t03.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <mach/hardware.h>
#include <mach/common.h>
#include <mach/iomux-mx27.h>
#include <mach/ulpi.h>
#include <mach/irqs.h>
#include <mach/3ds_debugboard.h>
#include "devices-imx27.h"
#define SD1_EN_GPIO IMX_GPIO_NR(2, 25)
#define OTG_PHY_RESET_GPIO IMX_GPIO_NR(2, 23)
#define SPI2_SS0 IMX_GPIO_NR(4, 21)
#define EXPIO_PARENT_INT gpio_to_irq(IMX_GPIO_NR(3, 28))
#define PMIC_INT IMX_GPIO_NR(3, 14)
#define SPI1_SS0 IMX_GPIO_NR(4, 28)
#define SD1_CD IMX_GPIO_NR(2, 26)
#define LCD_RESET IMX_GPIO_NR(1, 3)
#define LCD_ENABLE IMX_GPIO_NR(1, 31)
static const int mx27pdk_pins[] __initconst = {
/* UART1 */
PE12_PF_UART1_TXD,
PE13_PF_UART1_RXD,
PE14_PF_UART1_CTS,
PE15_PF_UART1_RTS,
/* FEC */
PD0_AIN_FEC_TXD0,
PD1_AIN_FEC_TXD1,
PD2_AIN_FEC_TXD2,
PD3_AIN_FEC_TXD3,
PD4_AOUT_FEC_RX_ER,
PD5_AOUT_FEC_RXD1,
PD6_AOUT_FEC_RXD2,
PD7_AOUT_FEC_RXD3,
PD8_AF_FEC_MDIO,
PD9_AIN_FEC_MDC,
PD10_AOUT_FEC_CRS,
PD11_AOUT_FEC_TX_CLK,
PD12_AOUT_FEC_RXD0,
PD13_AOUT_FEC_RX_DV,
PD14_AOUT_FEC_RX_CLK,
PD15_AOUT_FEC_COL,
PD16_AIN_FEC_TX_ER,
PF23_AIN_FEC_TX_EN,
/* SDHC1 */
PE18_PF_SD1_D0,
PE19_PF_SD1_D1,
PE20_PF_SD1_D2,
PE21_PF_SD1_D3,
PE22_PF_SD1_CMD,
PE23_PF_SD1_CLK,
SD1_EN_GPIO | GPIO_GPIO | GPIO_OUT,
/* OTG */
OTG_PHY_RESET_GPIO | GPIO_GPIO | GPIO_OUT,
PC7_PF_USBOTG_DATA5,
PC8_PF_USBOTG_DATA6,
PC9_PF_USBOTG_DATA0,
PC10_PF_USBOTG_DATA2,
PC11_PF_USBOTG_DATA1,
PC12_PF_USBOTG_DATA4,
PC13_PF_USBOTG_DATA3,
PE0_PF_USBOTG_NXT,
PE1_PF_USBOTG_STP,
PE2_PF_USBOTG_DIR,
PE24_PF_USBOTG_CLK,
PE25_PF_USBOTG_DATA7,
/* CSPI1 */
PD31_PF_CSPI1_MOSI,
PD30_PF_CSPI1_MISO,
PD29_PF_CSPI1_SCLK,
PD25_PF_CSPI1_RDY,
SPI1_SS0 | GPIO_GPIO | GPIO_OUT,
/* CSPI2 */
PD22_PF_CSPI2_SCLK,
PD23_PF_CSPI2_MISO,
PD24_PF_CSPI2_MOSI,
SPI2_SS0 | GPIO_GPIO | GPIO_OUT,
/* I2C1 */
PD17_PF_I2C_DATA,
PD18_PF_I2C_CLK,
/* PMIC INT */
PMIC_INT | GPIO_GPIO | GPIO_IN,
/* LCD */
PA5_PF_LSCLK,
PA6_PF_LD0,
PA7_PF_LD1,
PA8_PF_LD2,
PA9_PF_LD3,
PA10_PF_LD4,
PA11_PF_LD5,
PA12_PF_LD6,
PA13_PF_LD7,
PA14_PF_LD8,
PA15_PF_LD9,
PA16_PF_LD10,
PA17_PF_LD11,
PA18_PF_LD12,
PA19_PF_LD13,
PA20_PF_LD14,
PA21_PF_LD15,
PA22_PF_LD16,
PA23_PF_LD17,
PA28_PF_HSYNC,
PA29_PF_VSYNC,
PA30_PF_CONTRAST,
LCD_ENABLE | GPIO_GPIO | GPIO_OUT,
LCD_RESET | GPIO_GPIO | GPIO_OUT,
};
static const struct imxuart_platform_data uart_pdata __initconst = {
.flags = IMXUART_HAVE_RTSCTS,
};
/*
* Matrix keyboard
*/
static const uint32_t mx27_3ds_keymap[] = {
KEY(0, 0, KEY_UP),
KEY(0, 1, KEY_DOWN),
KEY(1, 0, KEY_RIGHT),
KEY(1, 1, KEY_LEFT),
KEY(1, 2, KEY_ENTER),
KEY(2, 0, KEY_F6),
KEY(2, 1, KEY_F8),
KEY(2, 2, KEY_F9),
KEY(2, 3, KEY_F10),
};
static const struct matrix_keymap_data mx27_3ds_keymap_data __initconst = {
.keymap = mx27_3ds_keymap,
.keymap_size = ARRAY_SIZE(mx27_3ds_keymap),
};
static int mx27_3ds_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
void *data)
{
return request_irq(gpio_to_irq(SD1_CD), detect_irq,
IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING, "sdhc1-card-detect", data);
}
static void mx27_3ds_sdhc1_exit(struct device *dev, void *data)
{
free_irq(gpio_to_irq(SD1_CD), data);
}
static const struct imxmmc_platform_data sdhc1_pdata __initconst = {
.init = mx27_3ds_sdhc1_init,
.exit = mx27_3ds_sdhc1_exit,
};
static void mx27_3ds_sdhc1_enable_level_translator(void)
{
/* Turn on TXB0108 OE pin */
gpio_request(SD1_EN_GPIO, "sd1_enable");
gpio_direction_output(SD1_EN_GPIO, 1);
}
static int otg_phy_init(void)
{
gpio_request(OTG_PHY_RESET_GPIO, "usb-otg-reset");
gpio_direction_output(OTG_PHY_RESET_GPIO, 0);
mdelay(1);
gpio_set_value(OTG_PHY_RESET_GPIO, 1);
return 0;
}
static int mx27_3ds_otg_init(struct platform_device *pdev)
{
return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
}
static struct mxc_usbh_platform_data otg_pdata __initdata = {
.init = mx27_3ds_otg_init,
.portsc = MXC_EHCI_MODE_ULPI,
};
static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
.operating_mode = FSL_USB2_DR_DEVICE,
.phy_mode = FSL_USB2_PHY_ULPI,
};
static int otg_mode_host;
static int __init mx27_3ds_otg_mode(char *options)
{
if (!strcmp(options, "host"))
otg_mode_host = 1;
else if (!strcmp(options, "device"))
otg_mode_host = 0;
else
pr_info("otg_mode neither \"host\" nor \"device\". "
"Defaulting to device\n");
return 0;
}
__setup("otg_mode=", mx27_3ds_otg_mode);
/* Regulators */
static struct regulator_init_data gpo_init = {
.constraints = {
.boot_on = 1,
.always_on = 1,
}
};
static struct regulator_consumer_supply vmmc1_consumers[] = {
REGULATOR_SUPPLY("lcd_2v8", NULL),
};
static struct regulator_init_data vmmc1_init = {
.constraints = {
.min_uV = 2800000,
.max_uV = 2800000,
.apply_uV = 1,
.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
REGULATOR_CHANGE_STATUS,
},
.num_consumer_supplies = ARRAY_SIZE(vmmc1_consumers),
.consumer_supplies = vmmc1_consumers,
};
static struct regulator_consumer_supply vgen_consumers[] = {
REGULATOR_SUPPLY("vdd_lcdio", NULL),
};
static struct regulator_init_data vgen_init = {
.constraints = {
.min_uV = 1800000,
.max_uV = 1800000,
.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
},
.num_consumer_supplies = ARRAY_SIZE(vgen_consumers),
.consumer_supplies = vgen_consumers,
};
static struct mc13xxx_regulator_init_data mx27_3ds_regulators[] = {
{
.id = MC13783_REG_VMMC1,
.init_data = &vmmc1_init,
}, {
.id = MC13783_REG_VGEN,
.init_data = &vgen_init,
}, {
.id = MC13783_REG_GPO1, /* Turn on 1.8V */
.init_data = &gpo_init,
}, {
.id = MC13783_REG_GPO3, /* Turn on 3.3V */
.init_data = &gpo_init,
},
};
/* MC13783 */
static struct mc13xxx_platform_data mc13783_pdata = {
.regulators = {
.regulators = mx27_3ds_regulators,
.num_regulators = ARRAY_SIZE(mx27_3ds_regulators),
},
.flags = MC13783_USE_REGULATOR | MC13783_USE_TOUCHSCREEN |
MC13783_USE_RTC,
};
/* SPI */
static int spi1_chipselect[] = {SPI1_SS0};
static const struct spi_imx_master spi1_pdata __initconst = {
.chipselect = spi1_chipselect,
.num_chipselect = ARRAY_SIZE(spi1_chipselect),
};
static int spi2_chipselect[] = {SPI2_SS0};
static const struct spi_imx_master spi2_pdata __initconst = {
.chipselect = spi2_chipselect,
.num_chipselect = ARRAY_SIZE(spi2_chipselect),
};
static struct imx_fb_videomode mx27_3ds_modes[] = {
{ /* 480x640 @ 60 Hz */
.mode = {
.name = "Epson-VGA",
.refresh = 60,
.xres = 480,
.yres = 640,
.pixclock = 41701,
.left_margin = 20,
.right_margin = 41,
.upper_margin = 10,
.lower_margin = 5,
.hsync_len = 20,
.vsync_len = 10,
.sync = FB_SYNC_OE_ACT_HIGH |
FB_SYNC_CLK_INVERT,
.vmode = FB_VMODE_NONINTERLACED,
.flag = 0,
},
.bpp = 16,
.pcr = 0xFAC08B82,
},
};
static const struct imx_fb_platform_data mx27_3ds_fb_data __initconst = {
.mode = mx27_3ds_modes,
.num_modes = ARRAY_SIZE(mx27_3ds_modes),
.pwmr = 0x00A903FF,
.lscr1 = 0x00120300,
.dmacr = 0x00020010,
};
/* LCD */
static struct l4f00242t03_pdata mx27_3ds_lcd_pdata = {
.reset_gpio = LCD_RESET,
.data_enable_gpio = LCD_ENABLE,
.core_supply = "lcd_2v8",
.io_supply = "vdd_lcdio",
};
static struct spi_board_info mx27_3ds_spi_devs[] __initdata = {
{
.modalias = "mc13783",
.max_speed_hz = 1000000,
.bus_num = 1,
.chip_select = 0, /* SS0 */
.platform_data = &mc13783_pdata,
.irq = gpio_to_irq(PMIC_INT),
.mode = SPI_CS_HIGH,
}, {
.modalias = "l4f00242t03",
.max_speed_hz = 5000000,
.bus_num = 0,
.chip_select = 0, /* SS0 */
.platform_data = &mx27_3ds_lcd_pdata,
},
};
static const struct imxi2c_platform_data mx27_3ds_i2c0_data __initconst = {
.bitrate = 100000,
};
static void __init mx27pdk_init(void)
{
imx27_soc_init();
mxc_gpio_setup_multiple_pins(mx27pdk_pins, ARRAY_SIZE(mx27pdk_pins),
"mx27pdk");
mx27_3ds_sdhc1_enable_level_translator();
imx27_add_imx_uart0(&uart_pdata);
imx27_add_fec(NULL);
imx27_add_imx_keypad(&mx27_3ds_keymap_data);
imx27_add_mxc_mmc(0, &sdhc1_pdata);
imx27_add_imx2_wdt(NULL);
otg_phy_init();
if (otg_mode_host) {
otg_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
ULPI_OTG_DRVVBUS_EXT);
if (otg_pdata.otg)
imx27_add_mxc_ehci_otg(&otg_pdata);
}
if (!otg_mode_host)
imx27_add_fsl_usb2_udc(&otg_device_pdata);
imx27_add_spi_imx1(&spi2_pdata);
imx27_add_spi_imx0(&spi1_pdata);
spi_register_board_info(mx27_3ds_spi_devs,
ARRAY_SIZE(mx27_3ds_spi_devs));
if (mxc_expio_init(MX27_CS5_BASE_ADDR, EXPIO_PARENT_INT))
pr_warn("Init of the debugboard failed, all devices on the debugboard are unusable.\n");
imx27_add_imx_i2c(0, &mx27_3ds_i2c0_data);
imx27_add_imx_fb(&mx27_3ds_fb_data);
}
static void __init mx27pdk_timer_init(void)
{
mx27_clocks_init(26000000);
}
static struct sys_timer mx27pdk_timer = {
.init = mx27pdk_timer_init,
};
MACHINE_START(MX27_3DS, "Freescale MX27PDK")
/* maintainer: Freescale Semiconductor, Inc. */
.boot_params = MX27_PHYS_OFFSET + 0x100,
.map_io = mx27_map_io,
.init_early = imx27_init_early,
.init_irq = mx27_init_irq,
.timer = &mx27pdk_timer,
.init_machine = mx27pdk_init,
MACHINE_END
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