/* * linux/arch/arm/mach-pxa/pcm027.c * Support for the Phytec phyCORE-PXA270 CPU card (aka PCM-027). * * Refer * http://www.phytec.com/products/sbc/ARM-XScale/phyCORE-XScale-PXA270.html * for additional hardware info * * Author: Juergen Kilb * Created: April 05, 2005 * Copyright: Phytec Messtechnik GmbH * e-Mail: armlinux@phytec.de * * based on Intel Mainstone Board * * Copyright 2007 Juergen Beisert @ Pengutronix (j.beisert@pengutronix.de) * * 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/irq.h> #include <linux/platform_device.h> #include <linux/mtd/physmap.h> #include <linux/spi/spi.h> #include <linux/spi/max7301.h> #include <linux/leds.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> #include <asm/arch/hardware.h> #include <asm/arch/pxa-regs.h> #include <asm/arch/pxa2xx-gpio.h> #include <asm/arch/pxa2xx-regs.h> #include <asm/arch/pxa2xx_spi.h> #include <asm/arch/pcm027.h> #include "generic.h" /* * ABSTRACT: * * The PXA270 processor comes with a bunch of hardware on its silicon. * Not all of this hardware can be used at the same time and not all * is routed to module's connectors. Also it depends on the baseboard, what * kind of hardware can be used in which way. * -> So this file supports the main devices on the CPU card only! * Refer pcm990-baseboard.c how to extend this features to get a full * blown system with many common interfaces. * * The PCM-027 supports the following interfaces through its connectors and * will be used in pcm990-baseboard.c: * * - LCD support * - MMC support * - IDE/CF card * - FFUART * - BTUART * - IRUART * - AC97 * - SSP * - SSP3 * * Claimed GPIOs: * GPIO0 -> IRQ input from RTC * GPIO2 -> SYS_ENA*) * GPIO3 -> PWR_SCL * GPIO4 -> PWR_SDA * GPIO5 -> PowerCap0*) * GPIO6 -> PowerCap1*) * GPIO7 -> PowerCap2*) * GPIO8 -> PowerCap3*) * GPIO15 -> /CS1 * GPIO20 -> /CS2 * GPIO21 -> /CS3 * GPIO33 -> /CS5 network controller select * GPIO52 -> IRQ from network controller * GPIO78 -> /CS2 * GPIO80 -> /CS4 * GPIO90 -> LED0 * GPIO91 -> LED1 * GPIO114 -> IRQ from CAN controller * GPIO117 -> SCL * GPIO118 -> SDA * * *) CPU internal use only */ /* * SMC91x network controller specific stuff */ static struct resource smc91x_resources[] = { [0] = { .start = PCM027_ETH_PHYS + 0x300, .end = PCM027_ETH_PHYS + PCM027_ETH_SIZE, .flags = IORESOURCE_MEM, }, [1] = { .start = PCM027_ETH_IRQ, .end = PCM027_ETH_IRQ, /* note: smc91x's driver doesn't use the trigger bits yet */ .flags = IORESOURCE_IRQ | PCM027_ETH_IRQ_EDGE, } }; static struct platform_device smc91x_device = { .name = "smc91x", .id = 0, .num_resources = ARRAY_SIZE(smc91x_resources), .resource = smc91x_resources, }; /* * SPI host and devices */ static struct pxa2xx_spi_master pxa_ssp_master_info = { .num_chipselect = 1, }; static struct max7301_platform_data max7301_info = { .base = -1, }; /* bus_num must match id in pxa2xx_set_spi_info() call */ static struct spi_board_info spi_board_info[] __initdata = { { .modalias = "max7301", .platform_data = &max7301_info, .max_speed_hz = 13000000, .bus_num = 1, .chip_select = 0, .mode = SPI_MODE_0, }, }; /* * NOR flash */ static struct physmap_flash_data pcm027_flash_data = { .width = 4, }; static struct resource pcm027_flash_resource = { .start = PCM027_FLASH_PHYS, .end = PCM027_FLASH_PHYS + PCM027_FLASH_SIZE - 1 , .flags = IORESOURCE_MEM, }; static struct platform_device pcm027_flash = { .name = "physmap-flash", .id = 0, .dev = { .platform_data = &pcm027_flash_data, }, .resource = &pcm027_flash_resource, .num_resources = 1, }; #ifdef CONFIG_LEDS_GPIO static struct gpio_led pcm027_led[] = { { .name = "led0:red", /* FIXME */ .gpio = PCM027_LED_CPU }, { .name = "led1:green", /* FIXME */ .gpio = PCM027_LED_HEARD_BEAT }, }; static struct gpio_led_platform_data pcm027_led_data = { .num_leds = ARRAY_SIZE(pcm027_led), .leds = pcm027_led }; static struct platform_device pcm027_led_dev = { .name = "leds-gpio", .id = 0, .dev = { .platform_data = &pcm027_led_data, }, }; #endif /* CONFIG_LEDS_GPIO */ /* * declare the available device resources on this board */ static struct platform_device *devices[] __initdata = { &smc91x_device, &pcm027_flash, #ifdef CONFIG_LEDS_GPIO &pcm027_led_dev #endif }; /* * pcm027_init - breath some life into the board */ static void __init pcm027_init(void) { /* system bus arbiter setting * - Core_Park * - LCD_wt:DMA_wt:CORE_Wt = 2:3:4 */ ARB_CNTRL = ARB_CORE_PARK | 0x234; platform_add_devices(devices, ARRAY_SIZE(devices)); /* LEDs (on demand only) */ #ifdef CONFIG_LEDS_GPIO pxa_gpio_mode(PCM027_LED_CPU | GPIO_OUT); pxa_gpio_mode(PCM027_LED_HEARD_BEAT | GPIO_OUT); #endif /* CONFIG_LEDS_GPIO */ /* at last call the baseboard to initialize itself */ #ifdef CONFIG_MACH_PCM990_BASEBOARD pcm990_baseboard_init(); #endif pxa2xx_set_spi_info(1, &pxa_ssp_master_info); spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info)); } static void __init pcm027_map_io(void) { pxa_map_io(); /* initialize sleep mode regs (wake-up sources, etc) */ PGSR0 = 0x01308000; PGSR1 = 0x00CF0002; PGSR2 = 0x0E294000; PGSR3 = 0x0000C000; PWER = 0x40000000 | PWER_GPIO0 | PWER_GPIO1; PRER = 0x00000000; PFER = 0x00000003; } MACHINE_START(PCM027, "Phytec Messtechnik GmbH phyCORE-PXA270") /* Maintainer: Pengutronix */ .boot_params = 0xa0000100, .phys_io = 0x40000000, .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc, .map_io = pcm027_map_io, .init_irq = pxa27x_init_irq, .timer = &pxa_timer, .init_machine = pcm027_init, MACHINE_END