[ARM] pxa: separate GPIOs and their mode definitions to pxa2xx-gpio.h
[linux-2.6.git] / arch / arm / mach-pxa / pcm027.c
1 /*
2  *  linux/arch/arm/mach-pxa/pcm027.c
3  *  Support for the Phytec phyCORE-PXA270 CPU card (aka PCM-027).
4  *
5  *  Refer
6  *   http://www.phytec.com/products/sbc/ARM-XScale/phyCORE-XScale-PXA270.html
7  *  for additional hardware info
8  *
9  *  Author:     Juergen Kilb
10  *  Created:    April 05, 2005
11  *  Copyright:  Phytec Messtechnik GmbH
12  *  e-Mail:     armlinux@phytec.de
13  *
14  *  based on Intel Mainstone Board
15  *
16  *  Copyright 2007 Juergen Beisert @ Pengutronix (j.beisert@pengutronix.de)
17  *
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.
21  */
22
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-gpio.h>
33 #include <asm/arch/pxa2xx-regs.h>
34 #include <asm/arch/pxa2xx_spi.h>
35 #include <asm/arch/pcm027.h>
36 #include "generic.h"
37
38 /*
39  * ABSTRACT:
40  *
41  * The PXA270 processor comes with a bunch of hardware on its silicon.
42  * Not all of this hardware can be used at the same time and not all
43  * is routed to module's connectors. Also it depends on the baseboard, what
44  * kind of hardware can be used in which way.
45  * -> So this file supports the main devices on the CPU card only!
46  * Refer pcm990-baseboard.c how to extend this features to get a full
47  * blown system with many common interfaces.
48  *
49  * The PCM-027 supports the following interfaces through its connectors and
50  * will be used in pcm990-baseboard.c:
51  *
52  * - LCD support
53  * - MMC support
54  * - IDE/CF card
55  * - FFUART
56  * - BTUART
57  * - IRUART
58  * - AC97
59  * - SSP
60  * - SSP3
61  *
62  * Claimed GPIOs:
63  * GPIO0 -> IRQ input from RTC
64  * GPIO2 -> SYS_ENA*)
65  * GPIO3 -> PWR_SCL
66  * GPIO4 -> PWR_SDA
67  * GPIO5 -> PowerCap0*)
68  * GPIO6 -> PowerCap1*)
69  * GPIO7 -> PowerCap2*)
70  * GPIO8 -> PowerCap3*)
71  * GPIO15 -> /CS1
72  * GPIO20 -> /CS2
73  * GPIO21 -> /CS3
74  * GPIO33 -> /CS5 network controller select
75  * GPIO52 -> IRQ from network controller
76  * GPIO78 -> /CS2
77  * GPIO80 -> /CS4
78  * GPIO90 -> LED0
79  * GPIO91 -> LED1
80  * GPIO114 -> IRQ from CAN controller
81  * GPIO117 -> SCL
82  * GPIO118 -> SDA
83  *
84  * *) CPU internal use only
85  */
86
87 /*
88  * SMC91x network controller specific stuff
89  */
90 static struct resource smc91x_resources[] = {
91         [0] = {
92                 .start  = PCM027_ETH_PHYS + 0x300,
93                 .end    = PCM027_ETH_PHYS + PCM027_ETH_SIZE,
94                 .flags  = IORESOURCE_MEM,
95         },
96         [1] = {
97                 .start  = PCM027_ETH_IRQ,
98                 .end    = PCM027_ETH_IRQ,
99                 /* note: smc91x's driver doesn't use the trigger bits yet */
100                 .flags  = IORESOURCE_IRQ | PCM027_ETH_IRQ_EDGE,
101         }
102 };
103
104 static struct platform_device smc91x_device = {
105         .name           = "smc91x",
106         .id             = 0,
107         .num_resources  = ARRAY_SIZE(smc91x_resources),
108         .resource       = smc91x_resources,
109 };
110
111 static struct physmap_flash_data pcm027_flash_data = {
112         .width  = 4,
113 };
114
115 static struct resource pcm027_flash_resource = {
116         .start          = PCM027_FLASH_PHYS,
117         .end            = PCM027_FLASH_PHYS + PCM027_FLASH_SIZE - 1 ,
118         .flags          = IORESOURCE_MEM,
119 };
120
121 static struct platform_device pcm027_flash = {
122         .name           = "physmap-flash",
123         .id             = 0,
124         .dev            = {
125                 .platform_data  = &pcm027_flash_data,
126         },
127         .resource       = &pcm027_flash_resource,
128         .num_resources  = 1,
129 };
130
131 #ifdef CONFIG_LEDS_GPIO
132
133 static struct gpio_led pcm027_led[] = {
134         {
135                 .name = "led0:red",     /* FIXME */
136                 .gpio = PCM027_LED_CPU
137         },
138         {
139                 .name = "led1:green",   /* FIXME */
140                 .gpio = PCM027_LED_HEARD_BEAT
141         },
142 };
143
144 static struct gpio_led_platform_data pcm027_led_data = {
145         .num_leds       = ARRAY_SIZE(pcm027_led),
146         .leds           = pcm027_led
147 };
148
149 static struct platform_device pcm027_led_dev = {
150         .name           = "leds-gpio",
151         .id             = 0,
152         .dev            = {
153                 .platform_data  = &pcm027_led_data,
154         },
155 };
156
157 #endif /* CONFIG_LEDS_GPIO */
158
159 /*
160  * declare the available device resources on this board
161  */
162 static struct platform_device *devices[] __initdata = {
163         &smc91x_device,
164         &pcm027_flash,
165 #ifdef CONFIG_LEDS_GPIO
166         &pcm027_led_dev
167 #endif
168 };
169
170 /*
171  * pcm027_init - breath some life into the board
172  */
173 static void __init pcm027_init(void)
174 {
175         /* system bus arbiter setting
176          * - Core_Park
177          * - LCD_wt:DMA_wt:CORE_Wt = 2:3:4
178          */
179         ARB_CNTRL = ARB_CORE_PARK | 0x234;
180
181         platform_add_devices(devices, ARRAY_SIZE(devices));
182
183         /* LEDs (on demand only) */
184 #ifdef CONFIG_LEDS_GPIO
185         pxa_gpio_mode(PCM027_LED_CPU | GPIO_OUT);
186         pxa_gpio_mode(PCM027_LED_HEARD_BEAT | GPIO_OUT);
187 #endif /* CONFIG_LEDS_GPIO */
188
189         /* at last call the baseboard to initialize itself */
190 #ifdef CONFIG_MACH_PCM990_BASEBOARD
191         pcm990_baseboard_init();
192 #endif
193 }
194
195 static void __init pcm027_map_io(void)
196 {
197         pxa_map_io();
198
199         /* initialize sleep mode regs (wake-up sources, etc) */
200         PGSR0 = 0x01308000;
201         PGSR1 = 0x00CF0002;
202         PGSR2 = 0x0E294000;
203         PGSR3 = 0x0000C000;
204         PWER  = 0x40000000 | PWER_GPIO0 | PWER_GPIO1;
205         PRER  = 0x00000000;
206         PFER  = 0x00000003;
207 }
208
209 MACHINE_START(PCM027, "Phytec Messtechnik GmbH phyCORE-PXA270")
210         /* Maintainer: Pengutronix */
211         .boot_params    = 0xa0000100,
212         .phys_io        = 0x40000000,
213         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
214         .map_io         = pcm027_map_io,
215         .init_irq       = pxa27x_init_irq,
216         .timer          = &pxa_timer,
217         .init_machine   = pcm027_init,
218 MACHINE_END