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/arch/arm/mach-pxa/colibri-pxa300.c

https://github.com/AICP/kernel_asus_grouper
C | 193 lines | 150 code | 23 blank | 20 comment | 3 complexity | 1f4d57889eec947397cb304ec8a62406 MD5 | raw file
  1/*
  2 *  arch/arm/mach-pxa/colibri-pxa300.c
  3 *
  4 *  Support for Toradex PXA300/310 based Colibri module
  5 *
  6 *  Daniel Mack <daniel@caiaq.de>
  7 *  Matthias Meier <matthias.j.meier@gmx.net>
  8 *
  9 *  This program is free software; you can redistribute it and/or modify
 10 *  it under the terms of the GNU General Public License version 2 as
 11 *  published by the Free Software Foundation.
 12 */
 13
 14#include <linux/init.h>
 15#include <linux/kernel.h>
 16#include <linux/platform_device.h>
 17#include <linux/gpio.h>
 18#include <linux/interrupt.h>
 19
 20#include <asm/mach-types.h>
 21#include <asm/sizes.h>
 22#include <asm/mach/arch.h>
 23#include <asm/mach/irq.h>
 24
 25#include <mach/pxa300.h>
 26#include <mach/colibri.h>
 27#include <mach/ohci.h>
 28#include <mach/pxafb.h>
 29#include <mach/audio.h>
 30
 31#include "generic.h"
 32#include "devices.h"
 33
 34
 35#ifdef CONFIG_MACH_COLIBRI_EVALBOARD
 36static mfp_cfg_t colibri_pxa300_evalboard_pin_config[] __initdata = {
 37	/* MMC */
 38	GPIO7_MMC1_CLK,
 39	GPIO14_MMC1_CMD,
 40	GPIO3_MMC1_DAT0,
 41	GPIO4_MMC1_DAT1,
 42	GPIO5_MMC1_DAT2,
 43	GPIO6_MMC1_DAT3,
 44	GPIO13_GPIO,	/* GPIO13_COLIBRI_PXA300_SD_DETECT */
 45
 46	/* UHC */
 47	GPIO0_2_USBH_PEN,
 48	GPIO1_2_USBH_PWR,
 49	GPIO77_USB_P3_1,
 50	GPIO78_USB_P3_2,
 51	GPIO79_USB_P3_3,
 52	GPIO80_USB_P3_4,
 53	GPIO81_USB_P3_5,
 54	GPIO82_USB_P3_6,
 55
 56	/* I2C */
 57	GPIO21_I2C_SCL,
 58	GPIO22_I2C_SDA,
 59};
 60#else
 61static mfp_cfg_t colibri_pxa300_evalboard_pin_config[] __initdata = {};
 62#endif
 63
 64#if defined(CONFIG_AX88796)
 65#define COLIBRI_ETH_IRQ_GPIO	mfp_to_gpio(GPIO26_GPIO)
 66/*
 67 * Asix AX88796 Ethernet
 68 */
 69static struct ax_plat_data colibri_asix_platdata = {
 70	.flags		= 0, /* defined later */
 71	.wordlength	= 2,
 72};
 73
 74static struct resource colibri_asix_resource[] = {
 75	[0] = {
 76		.start = PXA3xx_CS2_PHYS,
 77		.end   = PXA3xx_CS2_PHYS + (0x20 * 2) - 1,
 78		.flags = IORESOURCE_MEM,
 79	},
 80	[1] = {
 81		.start = gpio_to_irq(COLIBRI_ETH_IRQ_GPIO),
 82		.end   = gpio_to_irq(COLIBRI_ETH_IRQ_GPIO),
 83		.flags = IORESOURCE_IRQ | IRQF_TRIGGER_FALLING,
 84	}
 85};
 86
 87static struct platform_device asix_device = {
 88	.name		= "ax88796",
 89	.id		= 0,
 90	.num_resources 	= ARRAY_SIZE(colibri_asix_resource),
 91	.resource	= colibri_asix_resource,
 92	.dev		= {
 93		.platform_data = &colibri_asix_platdata
 94	}
 95};
 96
 97static mfp_cfg_t colibri_pxa300_eth_pin_config[] __initdata = {
 98	GPIO1_nCS2,			/* AX88796 chip select */
 99	GPIO26_GPIO | MFP_PULL_HIGH	/* AX88796 IRQ */
100};
101
102static void __init colibri_pxa300_init_eth(void)
103{
104	colibri_pxa3xx_init_eth(&colibri_asix_platdata);
105	pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa300_eth_pin_config));
106	platform_device_register(&asix_device);
107}
108#else
109static inline void __init colibri_pxa300_init_eth(void) {}
110#endif /* CONFIG_AX88796 */
111
112#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
113static mfp_cfg_t colibri_pxa300_lcd_pin_config[] __initdata = {
114	GPIO54_LCD_LDD_0,
115	GPIO55_LCD_LDD_1,
116	GPIO56_LCD_LDD_2,
117	GPIO57_LCD_LDD_3,
118	GPIO58_LCD_LDD_4,
119	GPIO59_LCD_LDD_5,
120	GPIO60_LCD_LDD_6,
121	GPIO61_LCD_LDD_7,
122	GPIO62_LCD_LDD_8,
123	GPIO63_LCD_LDD_9,
124	GPIO64_LCD_LDD_10,
125	GPIO65_LCD_LDD_11,
126	GPIO66_LCD_LDD_12,
127	GPIO67_LCD_LDD_13,
128	GPIO68_LCD_LDD_14,
129	GPIO69_LCD_LDD_15,
130	GPIO70_LCD_LDD_16,
131	GPIO71_LCD_LDD_17,
132	GPIO62_LCD_CS_N,
133	GPIO72_LCD_FCLK,
134	GPIO73_LCD_LCLK,
135	GPIO74_LCD_PCLK,
136	GPIO75_LCD_BIAS,
137	GPIO76_LCD_VSYNC,
138};
139
140static void __init colibri_pxa300_init_lcd(void)
141{
142	pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa300_lcd_pin_config));
143}
144
145#else
146static inline void colibri_pxa300_init_lcd(void) {}
147#endif /* CONFIG_FB_PXA || CONFIG_FB_PXA_MODULE */
148
149#if defined(CONFIG_SND_AC97_CODEC) || defined(CONFIG_SND_AC97_CODEC_MODULE)
150static mfp_cfg_t colibri_pxa310_ac97_pin_config[] __initdata = {
151	GPIO24_AC97_SYSCLK,
152	GPIO23_AC97_nACRESET,
153	GPIO25_AC97_SDATA_IN_0,
154	GPIO27_AC97_SDATA_OUT,
155	GPIO28_AC97_SYNC,
156	GPIO29_AC97_BITCLK
157};
158
159static inline void __init colibri_pxa310_init_ac97(void)
160{
161	/* no AC97 codec on Colibri PXA300 */
162	if (!cpu_is_pxa310())
163		return;
164
165	pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa310_ac97_pin_config));
166	pxa_set_ac97_info(NULL);
167}
168#else
169static inline void colibri_pxa310_init_ac97(void) {}
170#endif
171
172void __init colibri_pxa300_init(void)
173{
174	colibri_pxa300_init_eth();
175	colibri_pxa3xx_init_nand();
176	colibri_pxa300_init_lcd();
177	colibri_pxa3xx_init_lcd(mfp_to_gpio(GPIO39_GPIO));
178	colibri_pxa310_init_ac97();
179
180	/* Evalboard init */
181	pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa300_evalboard_pin_config));
182	colibri_evalboard_init();
183}
184
185MACHINE_START(COLIBRI300, "Toradex Colibri PXA300")
186	.boot_params	= COLIBRI_SDRAM_BASE + 0x100,
187	.init_machine	= colibri_pxa300_init,
188	.map_io		= pxa3xx_map_io,
189	.init_irq	= pxa3xx_init_irq,
190	.handle_irq	= pxa3xx_handle_irq,
191	.timer		= &pxa_timer,
192MACHINE_END
193