- 根目录:
- arch
- arm
- mach-pxa
- trizeps4.c
/*
* linux/arch/arm/mach-pxa/trizeps4.c
*
* Support for the Keith und Koep Trizeps4 Module Platform.
*
* Author: Jürgen Schindele
* Created: 20 02, 2006
* Copyright: Jürgen Schindele
*
* 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/init.h>
#include <linux/kernel.h>
#include <linux/platform_device.h>
#include <linux/interrupt.h>
#include <linux/export.h>
#include <linux/sched.h>
#include <linux/bitops.h>
#include <linux/fb.h>
#include <linux/ioport.h>
#include <linux/delay.h>
#include <linux/gpio.h>
#include <linux/dm9000.h>
#include <linux/mtd/physmap.h>
#include <linux/mtd/partitions.h>
#include <linux/regulator/machine.h>
#include <linux/i2c/pxa-i2c.h>
#include <asm/types.h>
#include <asm/setup.h>
#include <asm/memory.h>
#include <asm/mach-types.h>
#include <asm/irq.h>
#include <asm/sizes.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/irq.h>
#include <asm/mach/flash.h>
#include <mach/pxa27x.h>
#include <mach/trizeps4.h>
#include <mach/audio.h>
#include <linux/platform_data/video-pxafb.h>
#include <linux/platform_data/mmc-pxamci.h>
#include <linux/platform_data/irda-pxaficp.h>
#include <linux/platform_data/usb-ohci-pxa27x.h>
#include <mach/smemc.h>
#include "generic.h"
#include "devices.h"
/* comment out the following line if you want to use the
* Standard UART from PXA for serial / irda transmission
* and acivate it if you have status leds connected */
#define STATUS_LEDS_ON_STUART_PINS 1
/*****************************************************************************
* MultiFunctionPins of CPU
*****************************************************************************/
static unsigned long trizeps4_pin_config[] __initdata = {
/* Chip Selects */
GPIO15_nCS_1, /* DiskOnChip CS */
GPIO93_GPIO, /* TRIZEPS4_DOC_IRQ */
GPIO94_GPIO, /* DOC lock */
GPIO78_nCS_2, /* DM9000 CS */
GPIO101_GPIO, /* TRIZEPS4_ETH_IRQ */
GPIO79_nCS_3, /* Logic CS */
GPIO0_GPIO | WAKEUP_ON_EDGE_RISE, /* Logic irq */
/* AC97 */
GPIO28_AC97_BITCLK,
GPIO29_AC97_SDATA_IN_0,
GPIO30_AC97_SDATA_OUT,
GPIO31_AC97_SYNC,
/* LCD - 16bpp Active TFT */
GPIOxx_LCD_TFT_16BPP,
/* UART */
GPIO9_FFUART_CTS,
GPIO10_FFUART_DCD,
GPIO16_FFUART_TXD,
GPIO33_FFUART_DSR,
GPIO38_FFUART_RI,
GPIO82_FFUART_DTR,
GPIO83_FFUART_RTS,
GPIO96_FFUART_RXD,
GPIO42_BTUART_RXD,
GPIO43_BTUART_TXD,
GPIO44_BTUART_CTS,
GPIO45_BTUART_RTS,
#ifdef STATUS_LEDS_ON_STUART_PINS
GPIO46_GPIO,
GPIO47_GPIO,
#else
GPIO46_STUART_RXD,
GPIO47_STUART_TXD,
#endif
/* PCMCIA */
GPIO11_GPIO, /* TRIZEPS4_CD_IRQ */
GPIO13_GPIO, /* TRIZEPS4_READY_NINT */
GPIO48_nPOE,
GPIO49_nPWE,
GPIO50_nPIOR,
GPIO51_nPIOW,
GPIO54_nPCE_2,
GPIO55_nPREG,
GPIO56_nPWAIT,
GPIO57_nIOIS16,
GPIO102_nPCE_1,
GPIO104_PSKTSEL,
/* MultiMediaCard */
GPIO32_MMC_CLK,
GPIO92_MMC_DAT_0,
GPIO109_MMC_DAT_1,
GPIO110_MMC_DAT_2,
GPIO111_MMC_DAT_3,
GPIO112_MMC_CMD,
GPIO12_GPIO, /* TRIZEPS4_MMC_IRQ */
/* USB OHCI */
GPIO88_USBH1_PWR, /* USBHPWR1 */
GPIO89_USBH1_PEN, /* USBHPEN1 */
/* I2C */
GPIO117_I2C_SCL,
GPIO118_I2C_SDA,
};
static unsigned long trizeps4wl_pin_config[] __initdata = {
/* SSP 2 */
GPIO14_SSP2_SFRM,
GPIO19_SSP2_SCLK,
GPIO53_GPIO, /* TRIZEPS4_SPI_IRQ */
GPIO86_SSP2_RXD,
GPIO87_SSP2_TXD,
};
/****************************************************************************
* ONBOARD FLASH
****************************************************************************/
static struct mtd_partition trizeps4_partitions[] = {
{
.name = "Bootloader",
.offset = 0x00000000,
.size = 0x00040000,
.mask_flags = MTD_WRITEABLE /* force read-only */
}, {
.name = "Backup",
.offset = 0x00040000,
.size = 0x00040000,
}, {
.name = "Image",
.offset = 0x00080000,
.size = 0x01080000,
}, {
.name = "IPSM",
.offset = 0x01100000,
.size = 0x00e00000,
}, {
.name = "Registry",
.offset = 0x01f00000,
.size = MTDPART_SIZ_FULL,
}
};
static struct physmap_flash_data trizeps4_flash_data[] = {
{
.width = 4, /* bankwidth in bytes */
.parts = trizeps4_partitions,
.nr_parts = ARRAY_SIZE(trizeps4_partitions)
}
};
static struct resource flash_resource = {
.start = PXA_CS0_PHYS,
.end = PXA_CS0_PHYS + SZ_32M - 1,
.flags = IORESOURCE_MEM,
};
static struct platform_device flash_device = {
.name = "physmap-flash",
.id = 0,
.dev = {
.platform_data = trizeps4_flash_data,
},
.resource = &flash_resource,
.num_resources = 1,
};
/****************************************************************************
* DAVICOM DM9000 Ethernet
****************************************************************************/
static struct resource dm9000_resources[] = {
[0] = {
.start = TRIZEPS4_ETH_PHYS+0x300,
.end = TRIZEPS4_ETH_PHYS+0x400-1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = TRIZEPS4_ETH_PHYS+0x8300,
.end = TRIZEPS4_ETH_PHYS+0x8400-1,
.flags = IORESOURCE_MEM,
},
[2] = {
.start = TRIZEPS4_ETH_IRQ,
.end = TRIZEPS4_ETH_IRQ,
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
},
};
static struct dm9000_plat_data tri_dm9000_platdata = {
.flags = DM9000_PLATF_32BITONLY,
};
static struct platform_device dm9000_device = {
.name = "dm9000",
.id = -1,
.num_resources = ARRAY_SIZE(dm9000_resources),
.resource = dm9000_resources,
.dev = {
.platform_data = &tri_dm9000_platdata,
}
};
/****************************************************************************
* LED's on GPIO pins of PXA
****************************************************************************/
static struct gpio_led trizeps4_led[] = {
#ifdef STATUS_LEDS_ON_STUART_PINS
{
.name = "led0:orange:heartbeat", /* */
.default_trigger = "heartbeat",
.gpio = GPIO_HEARTBEAT_LED,
.active_low = 1,
},
{
.name = "led1:yellow:cpubusy", /* */
.default_trigger = "cpu-busy",
.gpio = GPIO_SYS_BUSY_LED,
.active_low = 1,
},
#endif
};
static struct gpio_led_platform_data trizeps4_led_data = {
.leds = trizeps4_led,
.num_leds = ARRAY_SIZE(trizeps4_led),
};
static struct platform_device leds_devices = {
.name = "leds-gpio",
.id = -1,
.dev = {
.platform_data = &trizeps4_led_data,
},
};
static struct platform_device *trizeps4_devices[] __initdata = {
&flash_device,
&dm9000_device,
&leds_devices,
};
static struct platform_device *trizeps4wl_devices[] __initdata = {
&flash_device,
&leds_devices,
};
static short trizeps_conxs_bcr;
/* PCCARD power switching supports only 3,3V */
void board_pcmcia_power(int power)
{
if (power) {
/* switch power on, put in reset and enable buffers */
trizeps_conxs_bcr |= power;
trizeps_conxs_bcr |= ConXS_BCR_CF_RESET;
trizeps_conxs_bcr &= ~ConXS_BCR_CF_BUF_EN;
BCR_writew(trizeps_conxs_bcr);
/* wait a little */
udelay(2000);
/* take reset away */
trizeps_conxs_bcr &= ~ConXS_BCR_CF_RESET;
BCR_writew(trizeps_conxs_bcr);
udelay(2000);
} else {
/* put in reset */
trizeps_conxs_bcr |= ConXS_BCR_CF_RESET;
BCR_writew(trizeps_conxs_bcr);
udelay(1000);
/* switch power off */
trizeps_conxs_bcr &= ~0xf;
BCR_writew(trizeps_conxs_bcr);
}
pr_debug("%s: o%s 0x%x\n", __func__, power ? "n" : "ff",
trizeps_conxs_bcr);
}
EXPORT_SYMBOL(board_pcmcia_power);
/* backlight power switching for LCD panel */
static void board_backlight_power(int on)
{
if (on)
trizeps_conxs_bcr |= ConXS_BCR_L_DISP;
else
trizeps_conxs_bcr &= ~ConXS_BCR_L_DISP;
pr_debug("%s: o%s 0x%x\n", __func__, on ? "n" : "ff",
trizeps_conxs_bcr);
BCR_writew(trizeps_conxs_bcr);
}
/* a I2C based RTC is known on CONXS board */
static struct i2c_board_info trizeps4_i2c_devices[] __initdata = {
{ I2C_BOARD_INFO("rtc-pcf8593", 0x51) }
};
/****************************************************************************
* MMC card slot external to module
****************************************************************************/
static int trizeps4_mci_init(struct device *dev, irq_handler_t mci_detect_int,
void *data)
{
int err;
err = request_irq(TRIZEPS4_MMC_IRQ, mci_detect_int,
IRQF_TRIGGER_RISING, "MMC card detect", data);
if (err) {
printk(KERN_ERR "trizeps4_mci_init: MMC/SD: can't request"
"MMC card detect IRQ\n");
return -1;
}
return 0;
}
static void trizeps4_mci_exit(struct device *dev, void *data)
{
free_irq(TRIZEPS4_MMC_IRQ, data);
}
static struct pxamci_platform_data trizeps4_mci_platform_data = {
.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
.detect_delay_ms= 10,
.init = trizeps4_mci_init,
.exit = trizeps4_mci_exit,
.get_ro = NULL, /* write-protection not supported */
.setpower = NULL, /* power-switching not supported */
.gpio_card_detect = -1,
.gpio_card_ro = -1,
.gpio_power = -1,
};
/****************************************************************************
* IRDA mode switching on stuart
****************************************************************************/
#ifndef STATUS_LEDS_ON_STUART_PINS
static short trizeps_conxs_ircr;
static int trizeps4_irda_startup(struct device *dev)
{
trizeps_conxs_ircr &= ~ConXS_IRCR_SD;
IRCR_writew(trizeps_conxs_ircr);
return 0;
}
static void trizeps4_irda_shutdown(struct device *dev)
{
trizeps_conxs_ircr |= ConXS_IRCR_SD;
IRCR_writew(trizeps_conxs_ircr);
}
static void trizeps4_irda_transceiver_mode(struct device *dev, int mode)
{
unsigned long flags;
local_irq_save(flags);
/* Switch mode */
if (mode & IR_SIRMODE)
trizeps_conxs_ircr &= ~ConXS_IRCR_MODE; /* Slow mode */
else if (mode & IR_FIRMODE)
trizeps_conxs_ircr |= ConXS_IRCR_MODE; /* Fast mode */
/* Switch power */
if (mode & IR_OFF)
trizeps_conxs_ircr |= ConXS_IRCR_SD;
else
trizeps_conxs_ircr &= ~ConXS_IRCR_SD;
IRCR_writew(trizeps_conxs_ircr);
local_irq_restore(flags);
pxa2xx_transceiver_mode(dev, mode);
}
static struct pxaficp_platform_data trizeps4_ficp_platform_data = {
.gpio_pwdown = -1,
.transceiver_cap = IR_SIRMODE | IR_FIRMODE | IR_OFF,
.transceiver_mode = trizeps4_irda_transceiver_mode,
.startup = trizeps4_irda_startup,
.shutdown = trizeps4_irda_shutdown,
};
#endif
/****************************************************************************
* OHCI USB port
****************************************************************************/
static struct pxaohci_platform_data trizeps4_ohci_platform_data = {
.port_mode = PMM_PERPORT_MODE,
.flags = ENABLE_PORT_ALL | POWER_CONTROL_LOW | POWER_SENSE_LOW,
};
static struct map_desc trizeps4_io_desc[] __initdata = {
{ /* ConXS CFSR */
.virtual = TRIZEPS4_CFSR_VIRT,
.pfn = __phys_to_pfn(TRIZEPS4_CFSR_PHYS),
.length = 0x00001000,
.type = MT_DEVICE
},
{ /* ConXS BCR */
.virtual = TRIZEPS4_BOCR_VIRT,
.pfn = __phys_to_pfn(TRIZEPS4_BOCR_PHYS),
.length = 0x00001000,
.type = MT_DEVICE
},
{ /* ConXS IRCR */
.virtual = TRIZEPS4_IRCR_VIRT,
.pfn = __phys_to_pfn(TRIZEPS4_IRCR_PHYS),
.length = 0x00001000,
.type = MT_DEVICE
},
{ /* ConXS DCR */
.virtual = TRIZEPS4_DICR_VIRT,
.pfn = __phys_to_pfn(TRIZEPS4_DICR_PHYS),
.length = 0x00001000,
.type = MT_DEVICE
},
{ /* ConXS UPSR */
.virtual = TRIZEPS4_UPSR_VIRT,
.pfn = __phys_to_pfn(TRIZEPS4_UPSR_PHYS),
.length = 0x00001000,
.type = MT_DEVICE
}
};
static struct pxafb_mode_info sharp_lcd_mode = {
.pixclock = 78000,
.xres = 640,
.yres = 480,
.bpp = 8,
.hsync_len = 4,
.left_margin = 4,
.right_margin = 4,
.vsync_len = 2,
.upper_margin = 0,
.lower_margin = 0,
.sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
.cmap_greyscale = 0,
};
static struct pxafb_mach_info sharp_lcd = {
.modes = &sharp_lcd_mode,
.num_modes = 1,
.lcd_conn = LCD_COLOR_DSTN_16BPP | LCD_PCLK_EDGE_FALL,
.cmap_inverse = 0,
.cmap_static = 0,
.pxafb_backlight_power = board_backlight_power,
};
static struct pxafb_mode_info toshiba_lcd_mode = {
.pixclock = 39720,
.xres = 640,
.yres = 480,
.bpp = 8,
.hsync_len = 63,
.left_margin = 12,
.right_margin = 12,
.vsync_len = 4,
.upper_margin = 32,
.lower_margin = 10,
.sync = 0,
.cmap_greyscale = 0,
};
static struct pxafb_mach_info toshiba_lcd = {
.modes = &toshiba_lcd_mode,
.num_modes = 1,
.lcd_conn = (LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL),
.cmap_inverse = 0,
.cmap_static = 0,
.pxafb_backlight_power = board_backlight_power,
};
static void __init trizeps4_init(void)
{
pxa2xx_mfp_config(ARRAY_AND_SIZE(trizeps4_pin_config));
if (machine_is_trizeps4wl()) {
pxa2xx_mfp_config(ARRAY_AND_SIZE(trizeps4wl_pin_config));
platform_add_devices(trizeps4wl_devices,
ARRAY_SIZE(trizeps4wl_devices));
} else {
platform_add_devices(trizeps4_devices,
ARRAY_SIZE(trizeps4_devices));
}
pxa_set_ffuart_info(NULL);
pxa_set_btuart_info(NULL);
pxa_set_stuart_info(NULL);
if (0) /* dont know how to determine LCD */
pxa_set_fb_info(NULL, &sharp_lcd);
else
pxa_set_fb_info(NULL, &toshiba_lcd);
pxa_set_mci_info(&trizeps4_mci_platform_data);
#ifndef STATUS_LEDS_ON_STUART_PINS
pxa_set_ficp_info(&trizeps4_ficp_platform_data);
#endif
pxa_set_ohci_info(&trizeps4_ohci_platform_data);
pxa_set_ac97_info(NULL);
pxa_set_i2c_info(NULL);
i2c_register_board_info(0, trizeps4_i2c_devices,
ARRAY_SIZE(trizeps4_i2c_devices));
/* this is the reset value */
trizeps_conxs_bcr = 0x00A0;
BCR_writew(trizeps_conxs_bcr);
board_backlight_power(1);
regulator_has_full_constraints();
}
static void __init trizeps4_map_io(void)
{
pxa27x_map_io();
iotable_init(trizeps4_io_desc, ARRAY_SIZE(trizeps4_io_desc));
if ((__raw_readl(MSC0) & 0x8) && (__raw_readl(BOOT_DEF) & 0x1)) {
/* if flash is 16 bit wide its a Trizeps4 WL */
__machine_arch_type = MACH_TYPE_TRIZEPS4WL;
trizeps4_flash_data[0].width = 2;
} else {
/* if flash is 32 bit wide its a Trizeps4 */
__machine_arch_type = MACH_TYPE_TRIZEPS4;
trizeps4_flash_data[0].width = 4;
}
}
MACHINE_START(TRIZEPS4, "Keith und Koep Trizeps IV module")
/* MAINTAINER("Jürgen Schindele") */
.atag_offset = 0x100,
.init_machine = trizeps4_init,
.map_io = trizeps4_map_io,
.nr_irqs = PXA_NR_IRQS,
.init_irq = pxa27x_init_irq,
.handle_irq = pxa27x_handle_irq,
.init_time = pxa_timer_init,
.restart = pxa_restart,
MACHINE_END
MACHINE_START(TRIZEPS4WL, "Keith und Koep Trizeps IV-WL module")
/* MAINTAINER("Jürgen Schindele") */
.atag_offset = 0x100,
.init_machine = trizeps4_init,
.map_io = trizeps4_map_io,
.nr_irqs = PXA_NR_IRQS,
.init_irq = pxa27x_init_irq,
.handle_irq = pxa27x_handle_irq,
.init_time = pxa_timer_init,
.restart = pxa_restart,
MACHINE_END