diff options
Diffstat (limited to 'kernel/arch/arm/mach-pxa/trizeps4.c')
| -rw-r--r-- | kernel/arch/arm/mach-pxa/trizeps4.c | 577 |
1 files changed, 577 insertions, 0 deletions
diff --git a/kernel/arch/arm/mach-pxa/trizeps4.c b/kernel/arch/arm/mach-pxa/trizeps4.c new file mode 100644 index 000000000..872dcb20e --- /dev/null +++ b/kernel/arch/arm/mach-pxa/trizeps4.c @@ -0,0 +1,577 @@ +/* + * 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/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); +} + +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 |