linux/arch/arm/mach-pxa/corgi.c

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/*
* Support for Sharp SL-C7xx PDAs
* Models: SL-C700 (Corgi), SL-C750 (Shepherd), SL-C760 (Husky)
*
* Copyright (c) 2004-2005 Richard Purdie
*
* Based on Sharp's 2.4 kernel patches/lubbock.c
*
* 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/platform_device.h>
#include <linux/major.h>
#include <linux/fs.h>
#include <linux/interrupt.h>
#include <linux/mmc/host.h>
#include <linux/mtd/physmap.h>
#include <linux/pm.h>
#include <linux/gpio.h>
#include <linux/backlight.h>
#include <linux/io.h>
#include <linux/spi/spi.h>
#include <linux/spi/ads7846.h>
#include <linux/spi/corgi_lcd.h>
#include <video/w100fb.h>
#include <asm/setup.h>
#include <asm/memory.h>
#include <asm/mach-types.h>
#include <mach/hardware.h>
#include <asm/irq.h>
#include <asm/system.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/irq.h>
#include <mach/pxa-regs.h>
#include <mach/pxa2xx-regs.h>
#include <mach/mfp-pxa25x.h>
#include <mach/i2c.h>
#include <mach/irda.h>
#include <mach/mmc.h>
#include <mach/udc.h>
#include <mach/pxa2xx_spi.h>
#include <mach/corgi.h>
#include <mach/sharpsl.h>
#include <asm/mach/sharpsl_param.h>
#include <asm/hardware/scoop.h>
#include "generic.h"
#include "devices.h"
#include "sharpsl.h"
static unsigned long corgi_pin_config[] __initdata = {
/* Static Memory I/O */
GPIO78_nCS_2, /* w100fb */
GPIO80_nCS_4, /* scoop */
/* SSP1 */
GPIO23_SSP1_SCLK,
GPIO25_SSP1_TXD,
GPIO26_SSP1_RXD,
GPIO24_GPIO, /* CORGI_GPIO_ADS7846_CS - SFRM as chip select */
/* I2S */
GPIO28_I2S_BITCLK_OUT,
GPIO29_I2S_SDATA_IN,
GPIO30_I2S_SDATA_OUT,
GPIO31_I2S_SYNC,
GPIO32_I2S_SYSCLK,
/* Infra-Red */
GPIO47_FICP_TXD,
GPIO46_FICP_RXD,
/* FFUART */
GPIO40_FFUART_DTR,
GPIO41_FFUART_RTS,
GPIO39_FFUART_TXD,
GPIO37_FFUART_DSR,
GPIO34_FFUART_RXD,
GPIO35_FFUART_CTS,
/* PC Card */
GPIO48_nPOE,
GPIO49_nPWE,
GPIO50_nPIOR,
GPIO51_nPIOW,
GPIO52_nPCE_1,
GPIO53_nPCE_2,
GPIO54_nPSKTSEL,
GPIO55_nPREG,
GPIO56_nPWAIT,
GPIO57_nIOIS16,
/* MMC */
GPIO6_MMC_CLK,
GPIO8_MMC_CS0,
/* GPIO */
GPIO9_GPIO, /* CORGI_GPIO_nSD_DETECT */
GPIO7_GPIO, /* CORGI_GPIO_nSD_WP */
GPIO33_GPIO, /* CORGI_GPIO_SD_PWR */
GPIO22_GPIO, /* CORGI_GPIO_IR_ON */
GPIO44_GPIO, /* CORGI_GPIO_HSYNC */
GPIO1_GPIO | WAKEUP_ON_EDGE_RISE,
};
/*
* Corgi SCOOP Device
*/
static struct resource corgi_scoop_resources[] = {
[0] = {
.start = 0x10800000,
.end = 0x10800fff,
.flags = IORESOURCE_MEM,
},
};
static struct scoop_config corgi_scoop_setup = {
.io_dir = CORGI_SCOOP_IO_DIR,
.io_out = CORGI_SCOOP_IO_OUT,
.gpio_base = CORGI_SCOOP_GPIO_BASE,
};
struct platform_device corgiscoop_device = {
.name = "sharp-scoop",
.id = -1,
.dev = {
.platform_data = &corgi_scoop_setup,
},
.num_resources = ARRAY_SIZE(corgi_scoop_resources),
.resource = corgi_scoop_resources,
};
static struct scoop_pcmcia_dev corgi_pcmcia_scoop[] = {
{
.dev = &corgiscoop_device.dev,
.irq = CORGI_IRQ_GPIO_CF_IRQ,
.cd_irq = CORGI_IRQ_GPIO_CF_CD,
.cd_irq_str = "PCMCIA0 CD",
},
};
static struct scoop_pcmcia_config corgi_pcmcia_config = {
.devs = &corgi_pcmcia_scoop[0],
.num_devs = 1,
};
EXPORT_SYMBOL(corgiscoop_device);
static struct w100_mem_info corgi_fb_mem = {
.ext_cntl = 0x00040003,
.sdram_mode_reg = 0x00650021,
.ext_timing_cntl = 0x10002a4a,
.io_cntl = 0x7ff87012,
.size = 0x1fffff,
};
static struct w100_gen_regs corgi_fb_regs = {
.lcd_format = 0x00000003,
.lcdd_cntl1 = 0x01CC0000,
.lcdd_cntl2 = 0x0003FFFF,
.genlcd_cntl1 = 0x00FFFF0D,
.genlcd_cntl2 = 0x003F3003,
.genlcd_cntl3 = 0x000102aa,
};
static struct w100_gpio_regs corgi_fb_gpio = {
.init_data1 = 0x000000bf,
.init_data2 = 0x00000000,
.gpio_dir1 = 0x00000000,
.gpio_oe1 = 0x03c0feff,
.gpio_dir2 = 0x00000000,
.gpio_oe2 = 0x00000000,
};
static struct w100_mode corgi_fb_modes[] = {
{
.xres = 480,
.yres = 640,
.left_margin = 0x56,
.right_margin = 0x55,
.upper_margin = 0x03,
.lower_margin = 0x00,
.crtc_ss = 0x82360056,
.crtc_ls = 0xA0280000,
.crtc_gs = 0x80280028,
.crtc_vpos_gs = 0x02830002,
.crtc_rev = 0x00400008,
.crtc_dclk = 0xA0000000,
.crtc_gclk = 0x8015010F,
.crtc_goe = 0x80100110,
.crtc_ps1_active = 0x41060010,
.pll_freq = 75,
.fast_pll_freq = 100,
.sysclk_src = CLK_SRC_PLL,
.sysclk_divider = 0,
.pixclk_src = CLK_SRC_PLL,
.pixclk_divider = 2,
.pixclk_divider_rotated = 6,
},{
.xres = 240,
.yres = 320,
.left_margin = 0x27,
.right_margin = 0x2e,
.upper_margin = 0x01,
.lower_margin = 0x00,
.crtc_ss = 0x81170027,
.crtc_ls = 0xA0140000,
.crtc_gs = 0xC0140014,
.crtc_vpos_gs = 0x00010141,
.crtc_rev = 0x00400008,
.crtc_dclk = 0xA0000000,
.crtc_gclk = 0x8015010F,
.crtc_goe = 0x80100110,
.crtc_ps1_active = 0x41060010,
.pll_freq = 0,
.fast_pll_freq = 0,
.sysclk_src = CLK_SRC_XTAL,
.sysclk_divider = 0,
.pixclk_src = CLK_SRC_XTAL,
.pixclk_divider = 1,
.pixclk_divider_rotated = 1,
},
};
static struct w100fb_mach_info corgi_fb_info = {
.init_mode = INIT_MODE_ROTATED,
.mem = &corgi_fb_mem,
.regs = &corgi_fb_regs,
.modelist = &corgi_fb_modes[0],
.num_modes = 2,
.gpio = &corgi_fb_gpio,
.xtal_freq = 12500000,
.xtal_dbl = 0,
};
static struct resource corgi_fb_resources[] = {
[0] = {
.start = 0x08000000,
.end = 0x08ffffff,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device corgifb_device = {
.name = "w100fb",
.id = -1,
.num_resources = ARRAY_SIZE(corgi_fb_resources),
.resource = corgi_fb_resources,
.dev = {
.platform_data = &corgi_fb_info,
},
};
/*
* Corgi Keyboard Device
*/
static struct platform_device corgikbd_device = {
.name = "corgi-keyboard",
.id = -1,
};
/*
* Corgi LEDs
*/
static struct gpio_led corgi_gpio_leds[] = {
{
.name = "corgi:amber:charge",
.default_trigger = "sharpsl-charge",
.gpio = CORGI_GPIO_LED_ORANGE,
},
{
.name = "corgi:green:mail",
.default_trigger = "nand-disk",
.gpio = CORGI_GPIO_LED_GREEN,
},
};
static struct gpio_led_platform_data corgi_gpio_leds_info = {
.leds = corgi_gpio_leds,
.num_leds = ARRAY_SIZE(corgi_gpio_leds),
};
static struct platform_device corgiled_device = {
.name = "leds-gpio",
.id = -1,
.dev = {
.platform_data = &corgi_gpio_leds_info,
},
};
/*
* MMC/SD Device
*
* The card detect interrupt isn't debounced so we delay it by 250ms
* to give the card a chance to fully insert/eject.
*/
static struct pxamci_platform_data corgi_mci_platform_data;
static int corgi_mci_init(struct device *dev, irq_handler_t corgi_detect_int, void *data)
{
int err;
err = gpio_request(CORGI_GPIO_nSD_DETECT, "nSD_DETECT");
if (err)
goto err_out;
err = gpio_request(CORGI_GPIO_nSD_WP, "nSD_WP");
if (err)
goto err_free_1;
err = gpio_request(CORGI_GPIO_SD_PWR, "SD_PWR");
if (err)
goto err_free_2;
gpio_direction_input(CORGI_GPIO_nSD_DETECT);
gpio_direction_input(CORGI_GPIO_nSD_WP);
gpio_direction_output(CORGI_GPIO_SD_PWR, 0);
corgi_mci_platform_data.detect_delay = msecs_to_jiffies(250);
err = request_irq(CORGI_IRQ_GPIO_nSD_DETECT, corgi_detect_int,
IRQF_DISABLED | IRQF_TRIGGER_RISING |
IRQF_TRIGGER_FALLING,
"MMC card detect", data);
if (err) {
pr_err("%s: MMC/SD: can't request MMC card detect IRQ\n",
__func__);
goto err_free_3;
}
return 0;
err_free_3:
gpio_free(CORGI_GPIO_SD_PWR);
err_free_2:
gpio_free(CORGI_GPIO_nSD_WP);
err_free_1:
gpio_free(CORGI_GPIO_nSD_DETECT);
err_out:
return err;
}
static void corgi_mci_setpower(struct device *dev, unsigned int vdd)
{
struct pxamci_platform_data* p_d = dev->platform_data;
gpio_set_value(CORGI_GPIO_SD_PWR, ((1 << vdd) & p_d->ocr_mask));
}
static int corgi_mci_get_ro(struct device *dev)
{
return gpio_get_value(CORGI_GPIO_nSD_WP);
}
static void corgi_mci_exit(struct device *dev, void *data)
{
free_irq(CORGI_IRQ_GPIO_nSD_DETECT, data);
gpio_free(CORGI_GPIO_SD_PWR);
gpio_free(CORGI_GPIO_nSD_WP);
gpio_free(CORGI_GPIO_nSD_DETECT);
}
static struct pxamci_platform_data corgi_mci_platform_data = {
.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
.init = corgi_mci_init,
.get_ro = corgi_mci_get_ro,
.setpower = corgi_mci_setpower,
.exit = corgi_mci_exit,
};
/*
* Irda
*/
static void corgi_irda_transceiver_mode(struct device *dev, int mode)
{
gpio_set_value(CORGI_GPIO_IR_ON, mode & IR_OFF);
pxa2xx_transceiver_mode(dev, mode);
}
static int corgi_irda_startup(struct device *dev)
{
int err;
err = gpio_request(CORGI_GPIO_IR_ON, "IR_ON");
if (err)
return err;
gpio_direction_output(CORGI_GPIO_IR_ON, 1);
return 0;
}
static void corgi_irda_shutdown(struct device *dev)
{
gpio_free(CORGI_GPIO_IR_ON);
}
static struct pxaficp_platform_data corgi_ficp_platform_data = {
.transceiver_cap = IR_SIRMODE | IR_OFF,
.transceiver_mode = corgi_irda_transceiver_mode,
.startup = corgi_irda_startup,
.shutdown = corgi_irda_shutdown,
};
/*
* USB Device Controller
*/
static struct pxa2xx_udc_mach_info udc_info __initdata = {
/* no connect GPIO; corgi can't tell connection status */
.gpio_pullup = CORGI_GPIO_USB_PULLUP,
};
#if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MASTER)
static struct pxa2xx_spi_master corgi_spi_info = {
.num_chipselect = 3,
};
static struct ads7846_platform_data corgi_ads7846_info = {
.model = 7846,
.vref_delay_usecs = 100,
.x_plate_ohms = 419,
.y_plate_ohms = 486,
.gpio_pendown = CORGI_GPIO_TP_INT,
};
static void corgi_ads7846_cs(u32 command)
{
gpio_set_value(CORGI_GPIO_ADS7846_CS, !(command == PXA2XX_CS_ASSERT));
}
static struct pxa2xx_spi_chip corgi_ads7846_chip = {
.cs_control = corgi_ads7846_cs,
};
static void corgi_bl_kick_battery(void)
{
void (*kick_batt)(void);
kick_batt = symbol_get(sharpsl_battery_kick);
if (kick_batt) {
kick_batt();
symbol_put(sharpsl_battery_kick);
}
}
static struct corgi_lcd_platform_data corgi_lcdcon_info = {
.init_mode = CORGI_LCD_MODE_VGA,
.max_intensity = 0x2f,
.default_intensity = 0x1f,
.limit_mask = 0x0b,
.gpio_backlight_cont = CORGI_GPIO_BACKLIGHT_CONT,
.gpio_backlight_on = -1,
.kick_battery = corgi_bl_kick_battery,
};
static void corgi_lcdcon_cs(u32 command)
{
gpio_set_value(CORGI_GPIO_LCDCON_CS, !(command == PXA2XX_CS_ASSERT));
}
static struct pxa2xx_spi_chip corgi_lcdcon_chip = {
.cs_control = corgi_lcdcon_cs,
};
static void corgi_max1111_cs(u32 command)
{
gpio_set_value(CORGI_GPIO_MAX1111_CS, !(command == PXA2XX_CS_ASSERT));
}
static struct pxa2xx_spi_chip corgi_max1111_chip = {
.cs_control = corgi_max1111_cs,
};
static struct spi_board_info corgi_spi_devices[] = {
{
.modalias = "ads7846",
.max_speed_hz = 1200000,
.bus_num = 1,
.chip_select = 0,
.platform_data = &corgi_ads7846_info,
.controller_data= &corgi_ads7846_chip,
.irq = gpio_to_irq(CORGI_GPIO_TP_INT),
}, {
.modalias = "corgi-lcd",
.max_speed_hz = 50000,
.bus_num = 1,
.chip_select = 1,
.platform_data = &corgi_lcdcon_info,
.controller_data= &corgi_lcdcon_chip,
}, {
.modalias = "max1111",
.max_speed_hz = 450000,
.bus_num = 1,
.chip_select = 2,
.controller_data= &corgi_max1111_chip,
},
};
static void __init corgi_init_spi(void)
{
int err;
err = gpio_request(CORGI_GPIO_ADS7846_CS, "ADS7846_CS");
if (err)
return;
err = gpio_request(CORGI_GPIO_LCDCON_CS, "LCDCON_CS");
if (err)
goto err_free_1;
err = gpio_request(CORGI_GPIO_MAX1111_CS, "MAX1111_CS");
if (err)
goto err_free_2;
gpio_direction_output(CORGI_GPIO_ADS7846_CS, 1);
gpio_direction_output(CORGI_GPIO_LCDCON_CS, 1);
gpio_direction_output(CORGI_GPIO_MAX1111_CS, 1);
pxa2xx_set_spi_info(1, &corgi_spi_info);
spi_register_board_info(ARRAY_AND_SIZE(corgi_spi_devices));
return;
err_free_2:
gpio_free(CORGI_GPIO_LCDCON_CS);
err_free_1:
gpio_free(CORGI_GPIO_ADS7846_CS);
}
#else
static inline void corgi_init_spi(void) {}
#endif
static struct mtd_partition sharpsl_rom_parts[] = {
{
.name ="Boot PROM Filesystem",
.offset = 0x00120000,
.size = MTDPART_SIZ_FULL,
},
};
static struct physmap_flash_data sharpsl_rom_data = {
.width = 2,
.nr_parts = ARRAY_SIZE(sharpsl_rom_parts),
.parts = sharpsl_rom_parts,
};
static struct resource sharpsl_rom_resources[] = {
{
.start = 0x00000000,
.end = 0x007fffff,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device sharpsl_rom_device = {
.name = "physmap-flash",
.id = -1,
.resource = sharpsl_rom_resources,
.num_resources = ARRAY_SIZE(sharpsl_rom_resources),
.dev.platform_data = &sharpsl_rom_data,
};
static struct platform_device *devices[] __initdata = {
&corgiscoop_device,
&corgifb_device,
&corgikbd_device,
&corgiled_device,
&sharpsl_rom_device,
};
static void corgi_poweroff(void)
{
if (!machine_is_corgi())
/* Green LED off tells the bootloader to halt */
gpio_set_value(CORGI_GPIO_LED_GREEN, 0);
arm_machine_restart('h');
}
static void corgi_restart(char mode)
{
if (!machine_is_corgi())
/* Green LED on tells the bootloader to reboot */
gpio_set_value(CORGI_GPIO_LED_GREEN, 1);
arm_machine_restart('h');
}
static void __init corgi_init(void)
{
pm_power_off = corgi_poweroff;
arm_pm_restart = corgi_restart;
/* Stop 3.6MHz and drive HIGH to PCMCIA and CS */
PCFR |= PCFR_OPDE;
pxa2xx_mfp_config(ARRAY_AND_SIZE(corgi_pin_config));
corgi_init_spi();
pxa_set_udc_info(&udc_info);
pxa_set_mci_info(&corgi_mci_platform_data);
pxa_set_ficp_info(&corgi_ficp_platform_data);
pxa_set_i2c_info(NULL);
platform_scoop_config = &corgi_pcmcia_config;
platform_add_devices(devices, ARRAY_SIZE(devices));
}
static void __init fixup_corgi(struct machine_desc *desc,
struct tag *tags, char **cmdline, struct meminfo *mi)
{
sharpsl_save_param();
mi->nr_banks=1;
mi->bank[0].start = 0xa0000000;
mi->bank[0].node = 0;
if (machine_is_corgi())
mi->bank[0].size = (32*1024*1024);
else
mi->bank[0].size = (64*1024*1024);
}
#ifdef CONFIG_MACH_CORGI
MACHINE_START(CORGI, "SHARP Corgi")
.phys_io = 0x40000000,
.io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
.fixup = fixup_corgi,
.map_io = pxa_map_io,
.init_irq = pxa25x_init_irq,
.init_machine = corgi_init,
.timer = &pxa_timer,
MACHINE_END
#endif
#ifdef CONFIG_MACH_SHEPHERD
MACHINE_START(SHEPHERD, "SHARP Shepherd")
.phys_io = 0x40000000,
.io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
.fixup = fixup_corgi,
.map_io = pxa_map_io,
.init_irq = pxa25x_init_irq,
.init_machine = corgi_init,
.timer = &pxa_timer,
MACHINE_END
#endif
#ifdef CONFIG_MACH_HUSKY
MACHINE_START(HUSKY, "SHARP Husky")
.phys_io = 0x40000000,
.io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
.fixup = fixup_corgi,
.map_io = pxa_map_io,
.init_irq = pxa25x_init_irq,
.init_machine = corgi_init,
.timer = &pxa_timer,
MACHINE_END
#endif