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linux/arch/arm/mach-pxa/cm-x300.c

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/*
* linux/arch/arm/mach-pxa/cm-x300.c
*
* Support for the CompuLab CM-X300 modules
*
* Copyright (C) 2008 CompuLab Ltd.
*
* Mike Rapoport <mike@compulab.co.il>
*
* 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/module.h>
#include <linux/kernel.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
#include <linux/dm9000.h>
#include <linux/leds.h>
#include <linux/i2c.h>
#include <linux/i2c/pca953x.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <mach/pxa300.h>
#include <mach/pxafb.h>
#include <mach/mmc.h>
#include <mach/ohci.h>
#include <mach/i2c.h>
#include <mach/pxa3xx_nand.h>
#include <asm/mach/map.h>
#include "generic.h"
#define CM_X300_ETH_PHYS 0x08000010
#define GPIO82_MMC2_IRQ (82)
#define GPIO85_MMC2_WP (85)
#define CM_X300_MMC2_IRQ IRQ_GPIO(GPIO82_MMC2_IRQ)
static mfp_cfg_t cm_x300_mfp_cfg[] __initdata = {
/* LCD */
GPIO54_LCD_LDD_0,
GPIO55_LCD_LDD_1,
GPIO56_LCD_LDD_2,
GPIO57_LCD_LDD_3,
GPIO58_LCD_LDD_4,
GPIO59_LCD_LDD_5,
GPIO60_LCD_LDD_6,
GPIO61_LCD_LDD_7,
GPIO62_LCD_LDD_8,
GPIO63_LCD_LDD_9,
GPIO64_LCD_LDD_10,
GPIO65_LCD_LDD_11,
GPIO66_LCD_LDD_12,
GPIO67_LCD_LDD_13,
GPIO68_LCD_LDD_14,
GPIO69_LCD_LDD_15,
GPIO72_LCD_FCLK,
GPIO73_LCD_LCLK,
GPIO74_LCD_PCLK,
GPIO75_LCD_BIAS,
/* BTUART */
GPIO111_UART2_RTS,
GPIO112_UART2_RXD | MFP_LPM_EDGE_FALL,
GPIO113_UART2_TXD,
GPIO114_UART2_CTS | MFP_LPM_EDGE_BOTH,
/* STUART */
GPIO109_UART3_TXD,
GPIO110_UART3_RXD | MFP_LPM_EDGE_FALL,
/* AC97 */
GPIO23_AC97_nACRESET,
GPIO24_AC97_SYSCLK,
GPIO29_AC97_BITCLK,
GPIO25_AC97_SDATA_IN_0,
GPIO27_AC97_SDATA_OUT,
GPIO28_AC97_SYNC,
/* Keypad */
GPIO115_KP_MKIN_0 | MFP_LPM_EDGE_BOTH,
GPIO116_KP_MKIN_1 | MFP_LPM_EDGE_BOTH,
GPIO117_KP_MKIN_2 | MFP_LPM_EDGE_BOTH,
GPIO118_KP_MKIN_3 | MFP_LPM_EDGE_BOTH,
GPIO119_KP_MKIN_4 | MFP_LPM_EDGE_BOTH,
GPIO120_KP_MKIN_5 | MFP_LPM_EDGE_BOTH,
GPIO2_2_KP_MKIN_6 | MFP_LPM_EDGE_BOTH,
GPIO3_2_KP_MKIN_7 | MFP_LPM_EDGE_BOTH,
GPIO121_KP_MKOUT_0,
GPIO122_KP_MKOUT_1,
GPIO123_KP_MKOUT_2,
GPIO124_KP_MKOUT_3,
GPIO125_KP_MKOUT_4,
GPIO4_2_KP_MKOUT_5,
/* MMC1 */
GPIO3_MMC1_DAT0,
GPIO4_MMC1_DAT1 | MFP_LPM_EDGE_BOTH,
GPIO5_MMC1_DAT2,
GPIO6_MMC1_DAT3,
GPIO7_MMC1_CLK,
GPIO8_MMC1_CMD, /* CMD0 for slot 0 */
/* MMC2 */
GPIO9_MMC2_DAT0,
GPIO10_MMC2_DAT1 | MFP_LPM_EDGE_BOTH,
GPIO11_MMC2_DAT2,
GPIO12_MMC2_DAT3,
GPIO13_MMC2_CLK,
GPIO14_MMC2_CMD,
/* FFUART */
GPIO30_UART1_RXD | MFP_LPM_EDGE_FALL,
GPIO31_UART1_TXD,
GPIO32_UART1_CTS,
GPIO37_UART1_RTS,
GPIO33_UART1_DCD,
GPIO34_UART1_DSR | MFP_LPM_EDGE_FALL,
GPIO35_UART1_RI,
GPIO36_UART1_DTR,
/* GPIOs */
GPIO79_GPIO, /* LED */
GPIO82_GPIO | MFP_PULL_HIGH, /* MMC CD */
GPIO85_GPIO, /* MMC WP */
GPIO99_GPIO, /* Ethernet IRQ */
/* Standard I2C */
GPIO21_I2C_SCL,
GPIO22_I2C_SDA,
};
#if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
static struct resource dm9000_resources[] = {
[0] = {
.start = CM_X300_ETH_PHYS,
.end = CM_X300_ETH_PHYS + 0x3,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = CM_X300_ETH_PHYS + 0x4,
.end = CM_X300_ETH_PHYS + 0x4 + 500,
.flags = IORESOURCE_MEM,
},
[2] = {
.start = IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO99)),
.end = IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO99)),
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
}
};
static struct dm9000_plat_data cm_x300_dm9000_platdata = {
.flags = DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM,
};
static struct platform_device dm9000_device = {
.name = "dm9000",
.id = 0,
.num_resources = ARRAY_SIZE(dm9000_resources),
.resource = dm9000_resources,
.dev = {
.platform_data = &cm_x300_dm9000_platdata,
}
};
static void __init cm_x300_init_dm9000(void)
{
platform_device_register(&dm9000_device);
}
#else
static inline void cm_x300_init_dm9000(void) {}
#endif
#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
static struct pxafb_mode_info cm_x300_lcd_modes[] = {
[0] = {
.pixclock = 38000,
.bpp = 16,
.xres = 480,
.yres = 640,
.hsync_len = 8,
.vsync_len = 2,
.left_margin = 8,
.upper_margin = 0,
.right_margin = 24,
.lower_margin = 4,
.cmap_greyscale = 0,
},
[1] = {
.pixclock = 153800,
.bpp = 16,
.xres = 240,
.yres = 320,
.hsync_len = 8,
.vsync_len = 2,
.left_margin = 8,
.upper_margin = 2,
.right_margin = 88,
.lower_margin = 2,
.cmap_greyscale = 0,
},
};
static struct pxafb_mach_info cm_x300_lcd = {
.modes = cm_x300_lcd_modes,
.num_modes = 2,
.lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
};
static void __init cm_x300_init_lcd(void)
{
set_pxa_fb_info(&cm_x300_lcd);
}
#else
static inline void cm_x300_init_lcd(void) {}
#endif
#if defined(CONFIG_MTD_NAND_PXA3xx) || defined(CONFIG_MTD_NAND_PXA3xx_MODULE)
static struct mtd_partition cm_x300_nand_partitions[] = {
[0] = {
.name = "OBM",
.offset = 0,
.size = SZ_256K,
.mask_flags = MTD_WRITEABLE, /* force read-only */
},
[1] = {
.name = "U-Boot",
.offset = MTDPART_OFS_APPEND,
.size = SZ_256K,
.mask_flags = MTD_WRITEABLE, /* force read-only */
},
[2] = {
.name = "Environment",
.offset = MTDPART_OFS_APPEND,
.size = SZ_256K,
},
[3] = {
.name = "reserved",
.offset = MTDPART_OFS_APPEND,
.size = SZ_256K + SZ_1M,
.mask_flags = MTD_WRITEABLE, /* force read-only */
},
[4] = {
.name = "kernel",
.offset = MTDPART_OFS_APPEND,
.size = SZ_4M,
},
[5] = {
.name = "fs",
.offset = MTDPART_OFS_APPEND,
.size = MTDPART_SIZ_FULL,
},
};
static struct pxa3xx_nand_platform_data cm_x300_nand_info = {
.enable_arbiter = 1,
.parts = cm_x300_nand_partitions,
.nr_parts = ARRAY_SIZE(cm_x300_nand_partitions),
};
static void __init cm_x300_init_nand(void)
{
pxa3xx_set_nand_info(&cm_x300_nand_info);
}
#else
static inline void cm_x300_init_nand(void) {}
#endif
#if defined(CONFIG_MMC) || defined(CONFIG_MMC_MODULE)
/* The first MMC slot of CM-X300 is hardwired to Libertas card and has
no detection/ro pins */
static int cm_x300_mci_init(struct device *dev,
irq_handler_t cm_x300_detect_int,
void *data)
{
return 0;
}
static void cm_x300_mci_exit(struct device *dev, void *data)
{
}
static struct pxamci_platform_data cm_x300_mci_platform_data = {
.detect_delay = 20,
.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
.init = cm_x300_mci_init,
.exit = cm_x300_mci_exit,
};
static int cm_x300_mci2_ro(struct device *dev)
{
return gpio_get_value(GPIO85_MMC2_WP);
}
static int cm_x300_mci2_init(struct device *dev,
irq_handler_t cm_x300_detect_int,
void *data)
{
int err;
/*
* setup GPIO for CM-X300 MMC controller
*/
err = gpio_request(GPIO82_MMC2_IRQ, "mmc card detect");
if (err)
goto err_request_cd;
gpio_direction_input(GPIO82_MMC2_IRQ);
err = gpio_request(GPIO85_MMC2_WP, "mmc write protect");
if (err)
goto err_request_wp;
gpio_direction_input(GPIO85_MMC2_WP);
err = request_irq(CM_X300_MMC2_IRQ, cm_x300_detect_int,
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
"MMC card detect", data);
if (err) {
printk(KERN_ERR "%s: MMC/SD/SDIO: "
"can't request card detect IRQ\n", __func__);
goto err_request_irq;
}
return 0;
err_request_irq:
gpio_free(GPIO85_MMC2_WP);
err_request_wp:
gpio_free(GPIO82_MMC2_IRQ);
err_request_cd:
return err;
}
static void cm_x300_mci2_exit(struct device *dev, void *data)
{
free_irq(CM_X300_MMC2_IRQ, data);
gpio_free(GPIO82_MMC2_IRQ);
gpio_free(GPIO85_MMC2_WP);
}
static struct pxamci_platform_data cm_x300_mci2_platform_data = {
.detect_delay = 20,
.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
.init = cm_x300_mci2_init,
.exit = cm_x300_mci2_exit,
.get_ro = cm_x300_mci2_ro,
};
static void __init cm_x300_init_mmc(void)
{
pxa_set_mci_info(&cm_x300_mci_platform_data);
pxa3xx_set_mci2_info(&cm_x300_mci2_platform_data);
}
#else
static inline void cm_x300_init_mmc(void) {}
#endif
#if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
static struct pxaohci_platform_data cm_x300_ohci_platform_data = {
.port_mode = PMM_PERPORT_MODE,
.flags = ENABLE_PORT1 | ENABLE_PORT2 | POWER_CONTROL_LOW,
};
static void __init cm_x300_init_ohci(void)
{
pxa_set_ohci_info(&cm_x300_ohci_platform_data);
}
#else
static inline void cm_x300_init_ohci(void) {}
#endif
#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
static struct gpio_led cm_x300_leds[] = {
[0] = {
.name = "cm-x300:green",
.default_trigger = "heartbeat",
.gpio = 79,
.active_low = 1,
},
};
static struct gpio_led_platform_data cm_x300_gpio_led_pdata = {
.num_leds = ARRAY_SIZE(cm_x300_leds),
.leds = cm_x300_leds,
};
static struct platform_device cm_x300_led_device = {
.name = "leds-gpio",
.id = -1,
.dev = {
.platform_data = &cm_x300_gpio_led_pdata,
},
};
static void __init cm_x300_init_leds(void)
{
platform_device_register(&cm_x300_led_device);
}
#else
static inline void cm_x300_init_leds(void) {}
#endif
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
/* PCA9555 */
static struct pca953x_platform_data cm_x300_gpio_ext_pdata_0 = {
.gpio_base = 128,
};
static struct pca953x_platform_data cm_x300_gpio_ext_pdata_1 = {
.gpio_base = 144,
};
static struct i2c_board_info cm_x300_gpio_ext_info[] = {
[0] = {
I2C_BOARD_INFO("pca9555", 0x24),
.platform_data = &cm_x300_gpio_ext_pdata_0,
},
[1] = {
I2C_BOARD_INFO("pca9555", 0x25),
.platform_data = &cm_x300_gpio_ext_pdata_1,
},
};
static void __init cm_x300_init_i2c(void)
{
pxa_set_i2c_info(NULL);
i2c_register_board_info(0, cm_x300_gpio_ext_info,
ARRAY_SIZE(cm_x300_gpio_ext_info));
}
#else
static inline void cm_x300_init_i2c(void) {}
#endif
static void __init cm_x300_init(void)
{
/* board-processor specific GPIO initialization */
pxa3xx_mfp_config(ARRAY_AND_SIZE(cm_x300_mfp_cfg));
cm_x300_init_dm9000();
cm_x300_init_lcd();
cm_x300_init_ohci();
cm_x300_init_mmc();
cm_x300_init_nand();
cm_x300_init_leds();
cm_x300_init_i2c();
}
MACHINE_START(CM_X300, "CM-X300 module")
.phys_io = 0x40000000,
.boot_params = 0xa0000100,
.io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
.map_io = pxa_map_io,
.init_irq = pxa3xx_init_irq,
.timer = &pxa_timer,
.init_machine = cm_x300_init,
MACHINE_END
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