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acrn-kernel/arch/arm/mach-pxa/poodle.c

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/*
* linux/arch/arm/mach-pxa/poodle.c
*
* Support for the SHARP Poodle Board.
*
* Based on:
* linux/arch/arm/mach-pxa/lubbock.c Author: Nicolas Pitre
*
* 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.
*
* Change Log
* 12-Dec-2002 Sharp Corporation for Poodle
* John Lenz <lenz@cs.wisc.edu> updates to 2.6
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/fb.h>
#include <linux/pm.h>
#include <linux/delay.h>
#include <linux/mtd/physmap.h>
#include <linux/gpio.h>
#include <linux/spi/spi.h>
#include <linux/spi/ads7846.h>
#include <linux/mtd/sharpsl.h>
#include <mach/hardware.h>
#include <asm/mach-types.h>
#include <asm/irq.h>
#include <asm/setup.h>
#include <asm/system.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/irq.h>
#include <mach/pxa25x.h>
#include <mach/mmc.h>
#include <mach/udc.h>
#include <mach/i2c.h>
#include <mach/irda.h>
#include <mach/poodle.h>
#include <mach/pxafb.h>
#include <mach/sharpsl.h>
#include <mach/ssp.h>
#include <mach/pxa2xx_spi.h>
#include <asm/hardware/scoop.h>
#include <asm/hardware/locomo.h>
#include <asm/mach/sharpsl_param.h>
#include "generic.h"
#include "devices.h"
#include "sharpsl.h"
static unsigned long poodle_pin_config[] __initdata = {
/* I/O */
GPIO79_nCS_3,
GPIO80_nCS_4,
GPIO18_RDY,
/* Clock */
GPIO12_32KHz,
/* SSP1 */
GPIO23_SSP1_SCLK,
GPIO25_SSP1_TXD,
GPIO26_SSP1_RXD,
GPIO24_GPIO, /* POODLE_GPIO_TP_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,
/* LCD */
GPIO58_LCD_LDD_0,
GPIO59_LCD_LDD_1,
GPIO60_LCD_LDD_2,
GPIO61_LCD_LDD_3,
GPIO62_LCD_LDD_4,
GPIO63_LCD_LDD_5,
GPIO64_LCD_LDD_6,
GPIO65_LCD_LDD_7,
GPIO66_LCD_LDD_8,
GPIO67_LCD_LDD_9,
GPIO68_LCD_LDD_10,
GPIO69_LCD_LDD_11,
GPIO70_LCD_LDD_12,
GPIO71_LCD_LDD_13,
GPIO72_LCD_LDD_14,
GPIO73_LCD_LDD_15,
GPIO74_LCD_FCLK,
GPIO75_LCD_LCLK,
GPIO76_LCD_PCLK,
GPIO77_LCD_BIAS,
/* 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, /* POODLE_GPIO_nSD_DETECT */
GPIO7_GPIO, /* POODLE_GPIO_nSD_WP */
GPIO3_GPIO, /* POODLE_GPIO_SD_PWR */
GPIO33_GPIO, /* POODLE_GPIO_SD_PWR1 */
GPIO20_GPIO, /* POODLE_GPIO_USB_PULLUP */
GPIO22_GPIO, /* POODLE_GPIO_IR_ON */
};
static struct resource poodle_scoop_resources[] = {
[0] = {
.start = 0x10800000,
.end = 0x10800fff,
.flags = IORESOURCE_MEM,
},
};
static struct scoop_config poodle_scoop_setup = {
.io_dir = POODLE_SCOOP_IO_DIR,
.io_out = POODLE_SCOOP_IO_OUT,
.gpio_base = POODLE_SCOOP_GPIO_BASE,
};
struct platform_device poodle_scoop_device = {
.name = "sharp-scoop",
.id = -1,
.dev = {
.platform_data = &poodle_scoop_setup,
},
.num_resources = ARRAY_SIZE(poodle_scoop_resources),
.resource = poodle_scoop_resources,
};
static struct scoop_pcmcia_dev poodle_pcmcia_scoop[] = {
{
.dev = &poodle_scoop_device.dev,
.irq = POODLE_IRQ_GPIO_CF_IRQ,
.cd_irq = POODLE_IRQ_GPIO_CF_CD,
.cd_irq_str = "PCMCIA0 CD",
},
};
static struct scoop_pcmcia_config poodle_pcmcia_config = {
.devs = &poodle_pcmcia_scoop[0],
.num_devs = 1,
};
EXPORT_SYMBOL(poodle_scoop_device);
/* LoCoMo device */
static struct resource locomo_resources[] = {
[0] = {
.start = 0x10000000,
.end = 0x10001fff,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = IRQ_GPIO(10),
.end = IRQ_GPIO(10),
.flags = IORESOURCE_IRQ,
},
};
struct platform_device poodle_locomo_device = {
.name = "locomo",
.id = 0,
.num_resources = ARRAY_SIZE(locomo_resources),
.resource = locomo_resources,
};
EXPORT_SYMBOL(poodle_locomo_device);
#if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE)
static struct pxa2xx_spi_master poodle_spi_info = {
.num_chipselect = 1,
};
static struct ads7846_platform_data poodle_ads7846_info = {
.model = 7846,
.vref_delay_usecs = 100,
.x_plate_ohms = 419,
.y_plate_ohms = 486,
.gpio_pendown = POODLE_GPIO_TP_INT,
};
static void ads7846_cs(u32 command)
{
gpio_set_value(POODLE_GPIO_TP_CS, !(command == PXA2XX_CS_ASSERT));
}
static struct pxa2xx_spi_chip poodle_ads7846_chip = {
.cs_control = ads7846_cs,
};
static struct spi_board_info poodle_spi_devices[] = {
{
.modalias = "ads7846",
.max_speed_hz = 10000,
.bus_num = 1,
.platform_data = &poodle_ads7846_info,
.controller_data= &poodle_ads7846_chip,
.irq = gpio_to_irq(POODLE_GPIO_TP_INT),
},
};
static void __init poodle_init_spi(void)
{
int err;
err = gpio_request(POODLE_GPIO_TP_CS, "ADS7846_CS");
if (err)
return;
gpio_direction_output(POODLE_GPIO_TP_CS, 1);
pxa2xx_set_spi_info(1, &poodle_spi_info);
spi_register_board_info(ARRAY_AND_SIZE(poodle_spi_devices));
}
#else
static inline void poodle_init_spi(void) {}
#endif
/*
* 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 poodle_mci_platform_data;
static int poodle_mci_init(struct device *dev, irq_handler_t poodle_detect_int, void *data)
{
int err;
err = gpio_request(POODLE_GPIO_nSD_DETECT, "nSD_DETECT");
if (err)
goto err_out;
err = gpio_request(POODLE_GPIO_nSD_WP, "nSD_WP");
if (err)
goto err_free_1;
err = gpio_request(POODLE_GPIO_SD_PWR, "SD_PWR");
if (err)
goto err_free_2;
err = gpio_request(POODLE_GPIO_SD_PWR1, "SD_PWR1");
if (err)
goto err_free_3;
gpio_direction_input(POODLE_GPIO_nSD_DETECT);
gpio_direction_input(POODLE_GPIO_nSD_WP);
gpio_direction_output(POODLE_GPIO_SD_PWR, 0);
gpio_direction_output(POODLE_GPIO_SD_PWR1, 0);
poodle_mci_platform_data.detect_delay = msecs_to_jiffies(250);
err = request_irq(POODLE_IRQ_GPIO_nSD_DETECT, poodle_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_4;
}
return 0;
err_free_4:
gpio_free(POODLE_GPIO_SD_PWR1);
err_free_3:
gpio_free(POODLE_GPIO_SD_PWR);
err_free_2:
gpio_free(POODLE_GPIO_nSD_WP);
err_free_1:
gpio_free(POODLE_GPIO_nSD_DETECT);
err_out:
return err;
}
static void poodle_mci_setpower(struct device *dev, unsigned int vdd)
{
struct pxamci_platform_data* p_d = dev->platform_data;
if ((1 << vdd) & p_d->ocr_mask) {
gpio_set_value(POODLE_GPIO_SD_PWR, 1);
mdelay(2);
gpio_set_value(POODLE_GPIO_SD_PWR1, 1);
} else {
gpio_set_value(POODLE_GPIO_SD_PWR1, 0);
gpio_set_value(POODLE_GPIO_SD_PWR, 0);
}
}
static int poodle_mci_get_ro(struct device *dev)
{
return !!gpio_get_value(POODLE_GPIO_nSD_WP);
return GPLR(POODLE_GPIO_nSD_WP) & GPIO_bit(POODLE_GPIO_nSD_WP);
}
static void poodle_mci_exit(struct device *dev, void *data)
{
free_irq(POODLE_IRQ_GPIO_nSD_DETECT, data);
gpio_free(POODLE_GPIO_SD_PWR1);
gpio_free(POODLE_GPIO_SD_PWR);
gpio_free(POODLE_GPIO_nSD_WP);
gpio_free(POODLE_GPIO_nSD_DETECT);
}
static struct pxamci_platform_data poodle_mci_platform_data = {
.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
.init = poodle_mci_init,
.get_ro = poodle_mci_get_ro,
.setpower = poodle_mci_setpower,
.exit = poodle_mci_exit,
};
/*
* Irda
*/
static void poodle_irda_transceiver_mode(struct device *dev, int mode)
{
gpio_set_value(POODLE_GPIO_IR_ON, mode & IR_OFF);
pxa2xx_transceiver_mode(dev, mode);
}
static int poodle_irda_startup(struct device *dev)
{
int err;
err = gpio_request(POODLE_GPIO_IR_ON, "IR_ON");
if (err)
return err;
gpio_direction_output(POODLE_GPIO_IR_ON, 1);
return 0;
}
static void poodle_irda_shutdown(struct device *dev)
{
gpio_free(POODLE_GPIO_IR_ON);
}
static struct pxaficp_platform_data poodle_ficp_platform_data = {
.transceiver_cap = IR_SIRMODE | IR_OFF,
.transceiver_mode = poodle_irda_transceiver_mode,
.startup = poodle_irda_startup,
.shutdown = poodle_irda_shutdown,
};
/*
* USB Device Controller
*/
static struct pxa2xx_udc_mach_info udc_info __initdata = {
/* no connect GPIO; poodle can't tell connection status */
.gpio_pullup = POODLE_GPIO_USB_PULLUP,
};
/* PXAFB device */
static struct pxafb_mode_info poodle_fb_mode = {
.pixclock = 144700,
.xres = 320,
.yres = 240,
.bpp = 16,
.hsync_len = 7,
.left_margin = 11,
.right_margin = 30,
.vsync_len = 2,
.upper_margin = 2,
.lower_margin = 0,
.sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
};
static struct pxafb_mach_info poodle_fb_info = {
.modes = &poodle_fb_mode,
.num_modes = 1,
.lcd_conn = LCD_COLOR_TFT_16BPP,
};
static struct mtd_partition sharpsl_nand_partitions[] = {
{
.name = "System Area",
.offset = 0,
.size = 7 * 1024 * 1024,
},
{
.name = "Root Filesystem",
.offset = 7 * 1024 * 1024,
.size = 22 * 1024 * 1024,
},
{
.name = "Home Filesystem",
.offset = MTDPART_OFS_APPEND,
.size = MTDPART_SIZ_FULL,
},
};
static uint8_t scan_ff_pattern[] = { 0xff, 0xff };
static struct nand_bbt_descr sharpsl_bbt = {
.options = 0,
.offs = 4,
.len = 2,
.pattern = scan_ff_pattern
};
static struct sharpsl_nand_platform_data sharpsl_nand_platform_data = {
.badblock_pattern = &sharpsl_bbt,
.partitions = sharpsl_nand_partitions,
.nr_partitions = ARRAY_SIZE(sharpsl_nand_partitions),
};
static struct resource sharpsl_nand_resources[] = {
{
.start = 0x0C000000,
.end = 0x0C000FFF,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device sharpsl_nand_device = {
.name = "sharpsl-nand",
.id = -1,
.resource = sharpsl_nand_resources,
.num_resources = ARRAY_SIZE(sharpsl_nand_resources),
.dev.platform_data = &sharpsl_nand_platform_data,
};
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 = {
&poodle_locomo_device,
&poodle_scoop_device,
&sharpsl_nand_device,
&sharpsl_rom_device,
};
static void poodle_poweroff(void)
{
arm_machine_restart('h', NULL);
}
static void poodle_restart(char mode, const char *cmd)
{
arm_machine_restart('h', cmd);
}
static void __init poodle_init(void)
{
int ret = 0;
pm_power_off = poodle_poweroff;
arm_pm_restart = poodle_restart;
PCFR |= PCFR_OPDE;
pxa2xx_mfp_config(ARRAY_AND_SIZE(poodle_pin_config));
platform_scoop_config = &poodle_pcmcia_config;
ret = platform_add_devices(devices, ARRAY_SIZE(devices));
if (ret)
pr_warning("poodle: Unable to register LoCoMo device\n");
set_pxa_fb_parent(&poodle_locomo_device.dev);
set_pxa_fb_info(&poodle_fb_info);
pxa_set_udc_info(&udc_info);
pxa_set_mci_info(&poodle_mci_platform_data);
pxa_set_ficp_info(&poodle_ficp_platform_data);
pxa_set_i2c_info(NULL);
poodle_init_spi();
}
static void __init fixup_poodle(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;
mi->bank[0].size = (32*1024*1024);
}
MACHINE_START(POODLE, "SHARP Poodle")
.phys_io = 0x40000000,
.io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
.fixup = fixup_poodle,
.map_io = pxa_map_io,
.init_irq = pxa25x_init_irq,
.timer = &pxa_timer,
.init_machine = poodle_init,
MACHINE_END
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