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/arch/arm/mach-pxa/colibri-pxa320.c

https://github.com/AICP/kernel_asus_grouper
C | 263 lines | 211 code | 29 blank | 23 comment | 7 complexity | b0f4f0fce25fff5393a4baaf9f34e772 MD5 | raw file
  1/*
  2 *  arch/arm/mach-pxa/colibri-pxa320.c
  3 *
  4 *  Support for Toradex PXA320/310 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#include <linux/usb/gpio_vbus.h>
 20
 21#include <asm/mach-types.h>
 22#include <asm/sizes.h>
 23#include <asm/mach/arch.h>
 24#include <asm/mach/irq.h>
 25
 26#include <mach/pxa320.h>
 27#include <mach/colibri.h>
 28#include <mach/pxafb.h>
 29#include <mach/ohci.h>
 30#include <mach/audio.h>
 31#include <mach/pxa27x-udc.h>
 32#include <mach/udc.h>
 33
 34#include "generic.h"
 35#include "devices.h"
 36
 37#ifdef	CONFIG_MACH_COLIBRI_EVALBOARD
 38static mfp_cfg_t colibri_pxa320_evalboard_pin_config[] __initdata = {
 39	/* MMC */
 40	GPIO22_MMC1_CLK,
 41	GPIO23_MMC1_CMD,
 42	GPIO18_MMC1_DAT0,
 43	GPIO19_MMC1_DAT1,
 44	GPIO20_MMC1_DAT2,
 45	GPIO21_MMC1_DAT3,
 46	GPIO28_GPIO,	/* SD detect */
 47
 48	/* UART 1 configuration (may be set by bootloader) */
 49	GPIO99_UART1_CTS,
 50	GPIO104_UART1_RTS,
 51	GPIO97_UART1_RXD,
 52	GPIO98_UART1_TXD,
 53	GPIO101_UART1_DTR,
 54	GPIO103_UART1_DSR,
 55	GPIO100_UART1_DCD,
 56	GPIO102_UART1_RI,
 57
 58	/* UART 2 configuration */
 59	GPIO109_UART2_CTS,
 60	GPIO112_UART2_RTS,
 61	GPIO110_UART2_RXD,
 62	GPIO111_UART2_TXD,
 63
 64	/* UART 3 configuration */
 65	GPIO30_UART3_RXD,
 66	GPIO31_UART3_TXD,
 67
 68	/* UHC */
 69	GPIO2_2_USBH_PEN,
 70	GPIO3_2_USBH_PWR,
 71
 72	/* I2C */
 73	GPIO32_I2C_SCL,
 74	GPIO33_I2C_SDA,
 75
 76	/* PCMCIA */
 77	MFP_CFG(GPIO59, AF7),	/* PRST ; AF7 to tristate */
 78	MFP_CFG(GPIO61, AF7),	/* PCE1 ; AF7 to tristate */
 79	MFP_CFG(GPIO60, AF7),	/* PCE2 ; AF7 to tristate */
 80	MFP_CFG(GPIO62, AF7),	/* PCD ; AF7 to tristate */
 81	MFP_CFG(GPIO56, AF7),	/* PSKTSEL ; AF7 to tristate */
 82	GPIO27_GPIO,		/* RDnWR ; input/tristate */
 83	GPIO50_GPIO,		/* PREG ; input/tristate */
 84	GPIO2_RDY,
 85	GPIO5_NPIOR,
 86	GPIO6_NPIOW,
 87	GPIO7_NPIOS16,
 88	GPIO8_NPWAIT,
 89	GPIO29_GPIO,		/* PRDY (READY GPIO) */
 90	GPIO57_GPIO,		/* PPEN (POWER GPIO) */
 91	GPIO81_GPIO,		/* PCD (DETECT GPIO) */
 92	GPIO77_GPIO,		/* PRST (RESET GPIO) */
 93	GPIO53_GPIO,		/* PBVD1 */
 94	GPIO79_GPIO,		/* PBVD2 */
 95	GPIO54_GPIO,		/* POE */
 96};
 97#else
 98static mfp_cfg_t colibri_pxa320_evalboard_pin_config[] __initdata = {};
 99#endif
100
101#if defined(CONFIG_AX88796)
102#define COLIBRI_ETH_IRQ_GPIO	mfp_to_gpio(GPIO36_GPIO)
103/*
104 * Asix AX88796 Ethernet
105 */
106static struct ax_plat_data colibri_asix_platdata = {
107	.flags		= 0, /* defined later */
108	.wordlength	= 2,
109};
110
111static struct resource colibri_asix_resource[] = {
112	[0] = {
113		.start = PXA3xx_CS2_PHYS,
114		.end   = PXA3xx_CS2_PHYS + (0x20 * 2) - 1,
115		.flags = IORESOURCE_MEM,
116	},
117	[1] = {
118		.start = gpio_to_irq(COLIBRI_ETH_IRQ_GPIO),
119		.end   = gpio_to_irq(COLIBRI_ETH_IRQ_GPIO),
120		.flags = IORESOURCE_IRQ | IRQF_TRIGGER_FALLING,
121	}
122};
123
124static struct platform_device asix_device = {
125	.name		= "ax88796",
126	.id		= 0,
127	.num_resources 	= ARRAY_SIZE(colibri_asix_resource),
128	.resource	= colibri_asix_resource,
129	.dev		= {
130		.platform_data = &colibri_asix_platdata
131	}
132};
133
134static mfp_cfg_t colibri_pxa320_eth_pin_config[] __initdata = {
135	GPIO3_nCS2,			/* AX88796 chip select */
136	GPIO36_GPIO | MFP_PULL_HIGH	/* AX88796 IRQ */
137};
138
139static void __init colibri_pxa320_init_eth(void)
140{
141	colibri_pxa3xx_init_eth(&colibri_asix_platdata);
142	pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_eth_pin_config));
143	platform_device_register(&asix_device);
144}
145#else
146static inline void __init colibri_pxa320_init_eth(void) {}
147#endif /* CONFIG_AX88796 */
148
149#if defined(CONFIG_USB_PXA27X)||defined(CONFIG_USB_PXA27X_MODULE)
150static struct gpio_vbus_mach_info colibri_pxa320_gpio_vbus_info = {
151	.gpio_vbus		= mfp_to_gpio(MFP_PIN_GPIO96),
152	.gpio_pullup		= -1,
153};
154
155static struct platform_device colibri_pxa320_gpio_vbus = {
156	.name	= "gpio-vbus",
157	.id	= -1,
158	.dev	= {
159		.platform_data	= &colibri_pxa320_gpio_vbus_info,
160	},
161};
162
163static void colibri_pxa320_udc_command(int cmd)
164{
165	if (cmd == PXA2XX_UDC_CMD_CONNECT)
166		UP2OCR = UP2OCR_HXOE | UP2OCR_DPPUE;
167	else if (cmd == PXA2XX_UDC_CMD_DISCONNECT)
168		UP2OCR = UP2OCR_HXOE;
169}
170
171static struct pxa2xx_udc_mach_info colibri_pxa320_udc_info __initdata = {
172	.udc_command		= colibri_pxa320_udc_command,
173	.gpio_pullup		= -1,
174};
175
176static void __init colibri_pxa320_init_udc(void)
177{
178	pxa_set_udc_info(&colibri_pxa320_udc_info);
179	platform_device_register(&colibri_pxa320_gpio_vbus);
180}
181#else
182static inline void colibri_pxa320_init_udc(void) {}
183#endif
184
185#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
186static mfp_cfg_t colibri_pxa320_lcd_pin_config[] __initdata = {
187	GPIO6_2_LCD_LDD_0,
188	GPIO7_2_LCD_LDD_1,
189	GPIO8_2_LCD_LDD_2,
190	GPIO9_2_LCD_LDD_3,
191	GPIO10_2_LCD_LDD_4,
192	GPIO11_2_LCD_LDD_5,
193	GPIO12_2_LCD_LDD_6,
194	GPIO13_2_LCD_LDD_7,
195	GPIO63_LCD_LDD_8,
196	GPIO64_LCD_LDD_9,
197	GPIO65_LCD_LDD_10,
198	GPIO66_LCD_LDD_11,
199	GPIO67_LCD_LDD_12,
200	GPIO68_LCD_LDD_13,
201	GPIO69_LCD_LDD_14,
202	GPIO70_LCD_LDD_15,
203	GPIO71_LCD_LDD_16,
204	GPIO72_LCD_LDD_17,
205	GPIO73_LCD_CS_N,
206	GPIO74_LCD_VSYNC,
207	GPIO14_2_LCD_FCLK,
208	GPIO15_2_LCD_LCLK,
209	GPIO16_2_LCD_PCLK,
210	GPIO17_2_LCD_BIAS,
211};
212
213static void __init colibri_pxa320_init_lcd(void)
214{
215	pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_lcd_pin_config));
216}
217#else
218static inline void colibri_pxa320_init_lcd(void) {}
219#endif
220
221#if	defined(CONFIG_SND_AC97_CODEC) || \
222	defined(CONFIG_SND_AC97_CODEC_MODULE)
223static mfp_cfg_t colibri_pxa320_ac97_pin_config[] __initdata = {
224	GPIO34_AC97_SYSCLK,
225	GPIO35_AC97_SDATA_IN_0,
226	GPIO37_AC97_SDATA_OUT,
227	GPIO38_AC97_SYNC,
228	GPIO39_AC97_BITCLK,
229	GPIO40_AC97_nACRESET
230};
231
232static inline void __init colibri_pxa320_init_ac97(void)
233{
234	pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_ac97_pin_config));
235	pxa_set_ac97_info(NULL);
236}
237#else
238static inline void colibri_pxa320_init_ac97(void) {}
239#endif
240
241void __init colibri_pxa320_init(void)
242{
243	colibri_pxa320_init_eth();
244	colibri_pxa3xx_init_nand();
245	colibri_pxa320_init_lcd();
246	colibri_pxa3xx_init_lcd(mfp_to_gpio(GPIO49_GPIO));
247	colibri_pxa320_init_ac97();
248	colibri_pxa320_init_udc();
249
250	/* Evalboard init */
251	pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_evalboard_pin_config));
252	colibri_evalboard_init();
253}
254
255MACHINE_START(COLIBRI320, "Toradex Colibri PXA320")
256	.boot_params	= COLIBRI_SDRAM_BASE + 0x100,
257	.init_machine	= colibri_pxa320_init,
258	.map_io		= pxa3xx_map_io,
259	.init_irq	= pxa3xx_init_irq,
260	.handle_irq	= pxa3xx_handle_irq,
261	.timer		= &pxa_timer,
262MACHINE_END
263