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

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  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 "pxa320.h"
 27 #include "colibri.h"
 28 #include <linux/platform_data/video-pxafb.h>
 29 #include <linux/platform_data/usb-ohci-pxa27x.h>
 30 #include <mach/audio.h>
 31 #include "pxa27x-udc.h"
 32 #include "udc.h"
 33 
 34 #include "generic.h"
 35 #include "devices.h"
 36 
 37 #ifdef  CONFIG_MACH_COLIBRI_EVALBOARD
 38 static 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
 98 static 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  */
106 static struct ax_plat_data colibri_asix_platdata = {
107         .flags          = 0, /* defined later */
108         .wordlength     = 2,
109 };
110 
111 static 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 = PXA_GPIO_TO_IRQ(COLIBRI_ETH_IRQ_GPIO),
119                 .end   = PXA_GPIO_TO_IRQ(COLIBRI_ETH_IRQ_GPIO),
120                 .flags = IORESOURCE_IRQ | IRQF_TRIGGER_FALLING,
121         }
122 };
123 
124 static 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 
134 static 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 
139 static 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
146 static inline void __init colibri_pxa320_init_eth(void) {}
147 #endif /* CONFIG_AX88796 */
148 
149 #if defined(CONFIG_USB_PXA27X)||defined(CONFIG_USB_PXA27X_MODULE)
150 static 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 
155 static 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 
163 static 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 
171 static struct pxa2xx_udc_mach_info colibri_pxa320_udc_info __initdata = {
172         .udc_command            = colibri_pxa320_udc_command,
173         .gpio_pullup            = -1,
174 };
175 
176 static 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
182 static inline void colibri_pxa320_init_udc(void) {}
183 #endif
184 
185 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
186 static 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 
213 static void __init colibri_pxa320_init_lcd(void)
214 {
215         pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_lcd_pin_config));
216 }
217 #else
218 static inline void colibri_pxa320_init_lcd(void) {}
219 #endif
220 
221 #if     defined(CONFIG_SND_AC97_CODEC) || \
222         defined(CONFIG_SND_AC97_CODEC_MODULE)
223 static 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 
232 static 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
238 static inline void colibri_pxa320_init_ac97(void) {}
239 #endif
240 
241 void __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 
255 MACHINE_START(COLIBRI320, "Toradex Colibri PXA320")
256         .atag_offset    = 0x100,
257         .init_machine   = colibri_pxa320_init,
258         .map_io         = pxa3xx_map_io,
259         .nr_irqs        = PXA_NR_IRQS,
260         .init_irq       = pxa3xx_init_irq,
261         .handle_irq     = pxa3xx_handle_irq,
262         .init_time      = pxa_timer_init,
263         .restart        = pxa_restart,
264 MACHINE_END
265 
266 

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