2 * linux/arch/arm/mach-pxa/pcm027.c
3 * Support for the Phytec phyCORE-PXA270 CPU card (aka PCM-027).
6 * http://www.phytec.com/products/sbc/ARM-XScale/phyCORE-XScale-PXA270.html
7 * for additional hardware info
10 * Created: April 05, 2005
11 * Copyright: Phytec Messtechnik GmbH
12 * e-Mail: armlinux@phytec.de
14 * based on Intel Mainstone Board
16 * Copyright 2007 Juergen Beisert @ Pengutronix (j.beisert@pengutronix.de)
18 * This program is free software; you can redistribute it and/or modify
19 * it under the terms of the GNU General Public License version 2 as
20 * published by the Free Software Foundation.
23 #include <linux/irq.h>
24 #include <linux/platform_device.h>
25 #include <linux/mtd/physmap.h>
26 #include <linux/spi/spi.h>
27 #include <linux/leds.h>
28 #include <asm/mach-types.h>
29 #include <asm/mach/arch.h>
30 #include <asm/arch/hardware.h>
31 #include <asm/arch/pxa-regs.h>
32 #include <asm/arch/pxa2xx-regs.h>
33 #include <asm/arch/pxa2xx_spi.h>
34 #include <asm/arch/pcm027.h>
40 * The PXA270 processor comes with a bunch of hardware on its silicon.
41 * Not all of this hardware can be used at the same time and not all
42 * is routed to module's connectors. Also it depends on the baseboard, what
43 * kind of hardware can be used in which way.
44 * -> So this file supports the main devices on the CPU card only!
45 * Refer pcm990-baseboard.c how to extend this features to get a full
46 * blown system with many common interfaces.
48 * The PCM-027 supports the following interfaces through its connectors and
49 * will be used in pcm990-baseboard.c:
62 * GPIO0 -> IRQ input from RTC
66 * GPIO5 -> PowerCap0*)
67 * GPIO6 -> PowerCap1*)
68 * GPIO7 -> PowerCap2*)
69 * GPIO8 -> PowerCap3*)
73 * GPIO33 -> /CS5 network controller select
74 * GPIO52 -> IRQ from network controller
79 * GPIO114 -> IRQ from CAN controller
83 * *) CPU internal use only
87 * SMC91x network controller specific stuff
89 static struct resource smc91x_resources[] = {
91 .start = PCM027_ETH_PHYS + 0x300,
92 .end = PCM027_ETH_PHYS + PCM027_ETH_SIZE,
93 .flags = IORESOURCE_MEM,
96 .start = PCM027_ETH_IRQ,
97 .end = PCM027_ETH_IRQ,
98 /* note: smc91x's driver doesn't use the trigger bits yet */
99 .flags = IORESOURCE_IRQ | PCM027_ETH_IRQ_EDGE,
103 static struct platform_device smc91x_device = {
106 .num_resources = ARRAY_SIZE(smc91x_resources),
107 .resource = smc91x_resources,
110 static struct physmap_flash_data pcm027_flash_data = {
114 static struct resource pcm027_flash_resource = {
115 .start = PCM027_FLASH_PHYS,
116 .end = PCM027_FLASH_PHYS + PCM027_FLASH_SIZE - 1 ,
117 .flags = IORESOURCE_MEM,
120 static struct platform_device pcm027_flash = {
121 .name = "physmap-flash",
124 .platform_data = &pcm027_flash_data,
126 .resource = &pcm027_flash_resource,
130 #ifdef CONFIG_LEDS_GPIO
132 static struct gpio_led pcm027_led[] = {
134 .name = "led0:red", /* FIXME */
135 .gpio = PCM027_LED_CPU
138 .name = "led1:green", /* FIXME */
139 .gpio = PCM027_LED_HEARD_BEAT
143 static struct gpio_led_platform_data pcm027_led_data = {
144 .num_leds = ARRAY_SIZE(pcm027_led),
148 static struct platform_device pcm027_led_dev = {
152 .platform_data = &pcm027_led_data,
156 #endif /* CONFIG_LEDS_GPIO */
159 * declare the available device resources on this board
161 static struct platform_device *devices[] __initdata = {
164 #ifdef CONFIG_LEDS_GPIO
170 * pcm027_init - breath some life into the board
172 static void __init pcm027_init(void)
174 /* system bus arbiter setting
176 * - LCD_wt:DMA_wt:CORE_Wt = 2:3:4
178 ARB_CNTRL = ARB_CORE_PARK | 0x234;
180 platform_add_devices(devices, ARRAY_SIZE(devices));
182 /* LEDs (on demand only) */
183 #ifdef CONFIG_LEDS_GPIO
184 pxa_gpio_mode(PCM027_LED_CPU | GPIO_OUT);
185 pxa_gpio_mode(PCM027_LED_HEARD_BEAT | GPIO_OUT);
186 #endif /* CONFIG_LEDS_GPIO */
188 /* at last call the baseboard to initialize itself */
189 #ifdef CONFIG_MACH_PCM990_BASEBOARD
190 pcm990_baseboard_init();
194 static void __init pcm027_map_io(void)
198 /* initialize sleep mode regs (wake-up sources, etc) */
203 PWER = 0x40000000 | PWER_GPIO0 | PWER_GPIO1;
208 MACHINE_START(PCM027, "Phytec Messtechnik GmbH phyCORE-PXA270")
209 /* Maintainer: Pengutronix */
210 .boot_params = 0xa0000100,
211 .phys_io = 0x40000000,
212 .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
213 .map_io = pcm027_map_io,
214 .init_irq = pxa27x_init_irq,
216 .init_machine = pcm027_init,