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Diffstat (limited to 'arch/arm/mach-pxa/pcm027.c')
| -rw-r--r-- | arch/arm/mach-pxa/pcm027.c | 216 |
1 files changed, 216 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/pcm027.c b/arch/arm/mach-pxa/pcm027.c new file mode 100644 index 000000000000..540c3bba5f9a --- /dev/null +++ b/arch/arm/mach-pxa/pcm027.c @@ -0,0 +1,216 @@ +/* + * 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/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_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, +}; + +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 +} + +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 |