Robert Schwebel | 34e31d8 | 2008-01-08 08:44:23 +0100 | [diff] [blame] | 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> |
Guennadi Liakhovetski | e172274 | 2008-06-13 09:17:31 +0100 | [diff] [blame] | 27 | #include <linux/spi/max7301.h> |
Robert Schwebel | 34e31d8 | 2008-01-08 08:44:23 +0100 | [diff] [blame] | 28 | #include <linux/leds.h> |
Guennadi Liakhovetski | e172274 | 2008-06-13 09:17:31 +0100 | [diff] [blame] | 29 | |
Robert Schwebel | 34e31d8 | 2008-01-08 08:44:23 +0100 | [diff] [blame] | 30 | #include <asm/mach-types.h> |
| 31 | #include <asm/mach/arch.h> |
Eric Miao | 51c6298 | 2009-01-02 23:17:22 +0800 | [diff] [blame] | 32 | #include <mach/pxa27x.h> |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 33 | #include <mach/pxa2xx_spi.h> |
| 34 | #include <mach/pcm027.h> |
Robert Schwebel | 34e31d8 | 2008-01-08 08:44:23 +0100 | [diff] [blame] | 35 | #include "generic.h" |
| 36 | |
| 37 | /* |
| 38 | * ABSTRACT: |
| 39 | * |
| 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. |
| 47 | * |
| 48 | * The PCM-027 supports the following interfaces through its connectors and |
| 49 | * will be used in pcm990-baseboard.c: |
| 50 | * |
| 51 | * - LCD support |
| 52 | * - MMC support |
| 53 | * - IDE/CF card |
| 54 | * - FFUART |
| 55 | * - BTUART |
| 56 | * - IRUART |
| 57 | * - AC97 |
| 58 | * - SSP |
| 59 | * - SSP3 |
| 60 | * |
| 61 | * Claimed GPIOs: |
| 62 | * GPIO0 -> IRQ input from RTC |
| 63 | * GPIO2 -> SYS_ENA*) |
| 64 | * GPIO3 -> PWR_SCL |
| 65 | * GPIO4 -> PWR_SDA |
| 66 | * GPIO5 -> PowerCap0*) |
| 67 | * GPIO6 -> PowerCap1*) |
| 68 | * GPIO7 -> PowerCap2*) |
| 69 | * GPIO8 -> PowerCap3*) |
| 70 | * GPIO15 -> /CS1 |
| 71 | * GPIO20 -> /CS2 |
| 72 | * GPIO21 -> /CS3 |
| 73 | * GPIO33 -> /CS5 network controller select |
| 74 | * GPIO52 -> IRQ from network controller |
| 75 | * GPIO78 -> /CS2 |
| 76 | * GPIO80 -> /CS4 |
| 77 | * GPIO90 -> LED0 |
| 78 | * GPIO91 -> LED1 |
| 79 | * GPIO114 -> IRQ from CAN controller |
| 80 | * GPIO117 -> SCL |
| 81 | * GPIO118 -> SDA |
| 82 | * |
| 83 | * *) CPU internal use only |
| 84 | */ |
| 85 | |
Eric Miao | 6517265 | 2008-09-12 10:45:41 +0800 | [diff] [blame] | 86 | static unsigned long pcm027_pin_config[] __initdata = { |
| 87 | /* Chip Selects */ |
| 88 | GPIO20_nSDCS_2, |
| 89 | GPIO21_nSDCS_3, |
| 90 | GPIO15_nCS_1, |
| 91 | GPIO78_nCS_2, |
| 92 | GPIO80_nCS_4, |
| 93 | GPIO33_nCS_5, /* Ethernet */ |
| 94 | |
| 95 | /* I2C */ |
| 96 | GPIO117_I2C_SCL, |
| 97 | GPIO118_I2C_SDA, |
| 98 | |
| 99 | /* GPIO */ |
| 100 | GPIO52_GPIO, /* IRQ from network controller */ |
| 101 | #ifdef CONFIG_LEDS_GPIO |
| 102 | GPIO90_GPIO, /* PCM027_LED_CPU */ |
| 103 | GPIO91_GPIO, /* PCM027_LED_HEART_BEAT */ |
| 104 | #endif |
| 105 | GPIO114_GPIO, /* IRQ from CAN controller */ |
| 106 | }; |
| 107 | |
Robert Schwebel | 34e31d8 | 2008-01-08 08:44:23 +0100 | [diff] [blame] | 108 | /* |
| 109 | * SMC91x network controller specific stuff |
| 110 | */ |
| 111 | static struct resource smc91x_resources[] = { |
| 112 | [0] = { |
| 113 | .start = PCM027_ETH_PHYS + 0x300, |
| 114 | .end = PCM027_ETH_PHYS + PCM027_ETH_SIZE, |
| 115 | .flags = IORESOURCE_MEM, |
| 116 | }, |
| 117 | [1] = { |
| 118 | .start = PCM027_ETH_IRQ, |
| 119 | .end = PCM027_ETH_IRQ, |
| 120 | /* note: smc91x's driver doesn't use the trigger bits yet */ |
| 121 | .flags = IORESOURCE_IRQ | PCM027_ETH_IRQ_EDGE, |
| 122 | } |
| 123 | }; |
| 124 | |
| 125 | static struct platform_device smc91x_device = { |
| 126 | .name = "smc91x", |
| 127 | .id = 0, |
| 128 | .num_resources = ARRAY_SIZE(smc91x_resources), |
| 129 | .resource = smc91x_resources, |
| 130 | }; |
| 131 | |
Guennadi Liakhovetski | e172274 | 2008-06-13 09:17:31 +0100 | [diff] [blame] | 132 | /* |
| 133 | * SPI host and devices |
| 134 | */ |
| 135 | static struct pxa2xx_spi_master pxa_ssp_master_info = { |
| 136 | .num_chipselect = 1, |
| 137 | }; |
| 138 | |
| 139 | static struct max7301_platform_data max7301_info = { |
| 140 | .base = -1, |
| 141 | }; |
| 142 | |
| 143 | /* bus_num must match id in pxa2xx_set_spi_info() call */ |
| 144 | static struct spi_board_info spi_board_info[] __initdata = { |
| 145 | { |
| 146 | .modalias = "max7301", |
| 147 | .platform_data = &max7301_info, |
| 148 | .max_speed_hz = 13000000, |
| 149 | .bus_num = 1, |
| 150 | .chip_select = 0, |
| 151 | .mode = SPI_MODE_0, |
| 152 | }, |
| 153 | }; |
| 154 | |
| 155 | /* |
| 156 | * NOR flash |
| 157 | */ |
Robert Schwebel | 34e31d8 | 2008-01-08 08:44:23 +0100 | [diff] [blame] | 158 | static struct physmap_flash_data pcm027_flash_data = { |
| 159 | .width = 4, |
| 160 | }; |
| 161 | |
| 162 | static struct resource pcm027_flash_resource = { |
| 163 | .start = PCM027_FLASH_PHYS, |
| 164 | .end = PCM027_FLASH_PHYS + PCM027_FLASH_SIZE - 1 , |
| 165 | .flags = IORESOURCE_MEM, |
| 166 | }; |
| 167 | |
| 168 | static struct platform_device pcm027_flash = { |
| 169 | .name = "physmap-flash", |
| 170 | .id = 0, |
| 171 | .dev = { |
| 172 | .platform_data = &pcm027_flash_data, |
| 173 | }, |
| 174 | .resource = &pcm027_flash_resource, |
| 175 | .num_resources = 1, |
| 176 | }; |
| 177 | |
| 178 | #ifdef CONFIG_LEDS_GPIO |
| 179 | |
| 180 | static struct gpio_led pcm027_led[] = { |
| 181 | { |
| 182 | .name = "led0:red", /* FIXME */ |
| 183 | .gpio = PCM027_LED_CPU |
| 184 | }, |
| 185 | { |
| 186 | .name = "led1:green", /* FIXME */ |
| 187 | .gpio = PCM027_LED_HEARD_BEAT |
| 188 | }, |
| 189 | }; |
| 190 | |
| 191 | static struct gpio_led_platform_data pcm027_led_data = { |
| 192 | .num_leds = ARRAY_SIZE(pcm027_led), |
| 193 | .leds = pcm027_led |
| 194 | }; |
| 195 | |
| 196 | static struct platform_device pcm027_led_dev = { |
| 197 | .name = "leds-gpio", |
| 198 | .id = 0, |
| 199 | .dev = { |
| 200 | .platform_data = &pcm027_led_data, |
| 201 | }, |
| 202 | }; |
| 203 | |
| 204 | #endif /* CONFIG_LEDS_GPIO */ |
| 205 | |
| 206 | /* |
| 207 | * declare the available device resources on this board |
| 208 | */ |
| 209 | static struct platform_device *devices[] __initdata = { |
| 210 | &smc91x_device, |
| 211 | &pcm027_flash, |
| 212 | #ifdef CONFIG_LEDS_GPIO |
| 213 | &pcm027_led_dev |
| 214 | #endif |
| 215 | }; |
| 216 | |
| 217 | /* |
| 218 | * pcm027_init - breath some life into the board |
| 219 | */ |
| 220 | static void __init pcm027_init(void) |
| 221 | { |
| 222 | /* system bus arbiter setting |
| 223 | * - Core_Park |
| 224 | * - LCD_wt:DMA_wt:CORE_Wt = 2:3:4 |
| 225 | */ |
| 226 | ARB_CNTRL = ARB_CORE_PARK | 0x234; |
| 227 | |
Eric Miao | 6517265 | 2008-09-12 10:45:41 +0800 | [diff] [blame] | 228 | pxa2xx_mfp_config(pcm027_pin_config, ARRAY_SIZE(pcm027_pin_config)); |
Robert Schwebel | 34e31d8 | 2008-01-08 08:44:23 +0100 | [diff] [blame] | 229 | |
Russell King | cc155c6 | 2009-11-09 13:34:08 +0800 | [diff] [blame] | 230 | pxa_set_ffuart_info(NULL); |
| 231 | pxa_set_btuart_info(NULL); |
| 232 | pxa_set_stuart_info(NULL); |
| 233 | |
Eric Miao | 6517265 | 2008-09-12 10:45:41 +0800 | [diff] [blame] | 234 | platform_add_devices(devices, ARRAY_SIZE(devices)); |
Robert Schwebel | 34e31d8 | 2008-01-08 08:44:23 +0100 | [diff] [blame] | 235 | |
| 236 | /* at last call the baseboard to initialize itself */ |
| 237 | #ifdef CONFIG_MACH_PCM990_BASEBOARD |
| 238 | pcm990_baseboard_init(); |
| 239 | #endif |
Guennadi Liakhovetski | e172274 | 2008-06-13 09:17:31 +0100 | [diff] [blame] | 240 | |
| 241 | pxa2xx_set_spi_info(1, &pxa_ssp_master_info); |
| 242 | spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info)); |
Robert Schwebel | 34e31d8 | 2008-01-08 08:44:23 +0100 | [diff] [blame] | 243 | } |
| 244 | |
| 245 | static void __init pcm027_map_io(void) |
| 246 | { |
Marek Vasut | 851982c | 2010-10-11 02:20:19 +0200 | [diff] [blame] | 247 | pxa27x_map_io(); |
Robert Schwebel | 34e31d8 | 2008-01-08 08:44:23 +0100 | [diff] [blame] | 248 | |
| 249 | /* initialize sleep mode regs (wake-up sources, etc) */ |
| 250 | PGSR0 = 0x01308000; |
| 251 | PGSR1 = 0x00CF0002; |
| 252 | PGSR2 = 0x0E294000; |
| 253 | PGSR3 = 0x0000C000; |
| 254 | PWER = 0x40000000 | PWER_GPIO0 | PWER_GPIO1; |
| 255 | PRER = 0x00000000; |
| 256 | PFER = 0x00000003; |
| 257 | } |
| 258 | |
| 259 | MACHINE_START(PCM027, "Phytec Messtechnik GmbH phyCORE-PXA270") |
| 260 | /* Maintainer: Pengutronix */ |
| 261 | .boot_params = 0xa0000100, |
Robert Schwebel | 34e31d8 | 2008-01-08 08:44:23 +0100 | [diff] [blame] | 262 | .map_io = pcm027_map_io, |
Haojian Zhuang | 6ac6b81 | 2010-08-20 15:23:59 +0800 | [diff] [blame] | 263 | .nr_irqs = PCM027_NR_IRQS, |
Robert Schwebel | 34e31d8 | 2008-01-08 08:44:23 +0100 | [diff] [blame] | 264 | .init_irq = pxa27x_init_irq, |
| 265 | .timer = &pxa_timer, |
| 266 | .init_machine = pcm027_init, |
| 267 | MACHINE_END |