1d2cec25391de4320819a0bc04a988072f085aaa
[linux-2.6.git] / arch / arm / mach-pxa / cm-x270.c
1 /*
2  * linux/arch/arm/mach-pxa/cm-x270.c
3  *
4  * Copyright (C) 2007, 2008 CompuLab, Ltd.
5  * Mike Rapoport <mike@compulab.co.il>
6  *
7  * This program is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License version 2 as
9  * published by the Free Software Foundation.
10  */
11
12 #include <linux/platform_device.h>
13 #include <linux/sysdev.h>
14 #include <linux/irq.h>
15 #include <linux/gpio.h>
16
17 #include <linux/rtc-v3020.h>
18 #include <video/mbxfb.h>
19
20 #include <mach/pxa27x.h>
21 #include <mach/ohci.h>
22 #include <mach/mmc.h>
23
24 #include "generic.h"
25
26 /* physical address if local-bus attached devices */
27 #define RTC_PHYS_BASE           (PXA_CS1_PHYS + (5 << 22))
28
29 /* GPIO IRQ usage */
30 #define GPIO83_MMC_IRQ          (83)
31
32 #define CMX270_MMC_IRQ          IRQ_GPIO(GPIO83_MMC_IRQ)
33
34 /* MMC power enable */
35 #define GPIO105_MMC_POWER       (105)
36
37 static unsigned long cmx270_pin_config[] = {
38         /* AC'97 */
39         GPIO28_AC97_BITCLK,
40         GPIO29_AC97_SDATA_IN_0,
41         GPIO30_AC97_SDATA_OUT,
42         GPIO31_AC97_SYNC,
43         GPIO98_AC97_SYSCLK,
44         GPIO113_AC97_nRESET,
45
46         /* BTUART */
47         GPIO42_BTUART_RXD,
48         GPIO43_BTUART_TXD,
49         GPIO44_BTUART_CTS,
50         GPIO45_BTUART_RTS,
51
52         /* STUART */
53         GPIO46_STUART_RXD,
54         GPIO47_STUART_TXD,
55
56         /* MCI controller */
57         GPIO32_MMC_CLK,
58         GPIO112_MMC_CMD,
59         GPIO92_MMC_DAT_0,
60         GPIO109_MMC_DAT_1,
61         GPIO110_MMC_DAT_2,
62         GPIO111_MMC_DAT_3,
63
64         /* LCD */
65         GPIO58_LCD_LDD_0,
66         GPIO59_LCD_LDD_1,
67         GPIO60_LCD_LDD_2,
68         GPIO61_LCD_LDD_3,
69         GPIO62_LCD_LDD_4,
70         GPIO63_LCD_LDD_5,
71         GPIO64_LCD_LDD_6,
72         GPIO65_LCD_LDD_7,
73         GPIO66_LCD_LDD_8,
74         GPIO67_LCD_LDD_9,
75         GPIO68_LCD_LDD_10,
76         GPIO69_LCD_LDD_11,
77         GPIO70_LCD_LDD_12,
78         GPIO71_LCD_LDD_13,
79         GPIO72_LCD_LDD_14,
80         GPIO73_LCD_LDD_15,
81         GPIO74_LCD_FCLK,
82         GPIO75_LCD_LCLK,
83         GPIO76_LCD_PCLK,
84         GPIO77_LCD_BIAS,
85
86         /* I2C */
87         GPIO117_I2C_SCL,
88         GPIO118_I2C_SDA,
89
90         /* SSP1 */
91         GPIO23_SSP1_SCLK,
92         GPIO24_SSP1_SFRM,
93         GPIO25_SSP1_TXD,
94         GPIO26_SSP1_RXD,
95
96         /* SSP2 */
97         GPIO19_SSP2_SCLK,
98         GPIO14_SSP2_SFRM,
99         GPIO87_SSP2_TXD,
100         GPIO88_SSP2_RXD,
101
102         /* PC Card */
103         GPIO48_nPOE,
104         GPIO49_nPWE,
105         GPIO50_nPIOR,
106         GPIO51_nPIOW,
107         GPIO85_nPCE_1,
108         GPIO54_nPCE_2,
109         GPIO55_nPREG,
110         GPIO56_nPWAIT,
111         GPIO57_nIOIS16,
112
113         /* SDRAM and local bus */
114         GPIO15_nCS_1,
115         GPIO78_nCS_2,
116         GPIO79_nCS_3,
117         GPIO80_nCS_4,
118         GPIO33_nCS_5,
119         GPIO49_nPWE,
120         GPIO18_RDY,
121
122         /* GPIO */
123         GPIO0_GPIO      | WAKEUP_ON_EDGE_BOTH,
124         GPIO105_GPIO    | MFP_LPM_DRIVE_HIGH,   /* MMC/SD power */
125         GPIO53_GPIO,                            /* PC card reset */
126
127         /* NAND controls */
128         GPIO11_GPIO     | MFP_LPM_DRIVE_HIGH,   /* NAND CE# */
129         GPIO89_GPIO,                            /* NAND Ready/Busy */
130
131         /* interrupts */
132         GPIO10_GPIO,    /* DM9000 interrupt */
133         GPIO83_GPIO,    /* MMC card detect */
134 };
135
136 /* V3020 RTC */
137 #if defined(CONFIG_RTC_DRV_V3020) || defined(CONFIG_RTC_DRV_V3020_MODULE)
138 static struct resource cmx270_v3020_resource[] = {
139         [0] = {
140                 .start = RTC_PHYS_BASE,
141                 .end   = RTC_PHYS_BASE + 4,
142                 .flags = IORESOURCE_MEM,
143         },
144 };
145
146 struct v3020_platform_data cmx270_v3020_pdata = {
147         .leftshift = 16,
148 };
149
150 static struct platform_device cmx270_rtc_device = {
151         .name           = "v3020",
152         .num_resources  = ARRAY_SIZE(cmx270_v3020_resource),
153         .resource       = cmx270_v3020_resource,
154         .id             = -1,
155         .dev            = {
156                 .platform_data = &cmx270_v3020_pdata,
157         }
158 };
159
160 static void __init cmx270_init_rtc(void)
161 {
162         platform_device_register(&cmx270_rtc_device);
163 }
164 #else
165 static inline void cmx270_init_rtc(void) {}
166 #endif
167
168 /* 2700G graphics */
169 #if defined(CONFIG_FB_MBX) || defined(CONFIG_FB_MBX_MODULE)
170 static u64 fb_dma_mask = ~(u64)0;
171
172 static struct resource cmx270_2700G_resource[] = {
173         /* frame buffer memory including ODFB and External SDRAM */
174         [0] = {
175                 .start = PXA_CS2_PHYS,
176                 .end   = PXA_CS2_PHYS + 0x01ffffff,
177                 .flags = IORESOURCE_MEM,
178         },
179         /* Marathon registers */
180         [1] = {
181                 .start = PXA_CS2_PHYS + 0x03fe0000,
182                 .end   = PXA_CS2_PHYS + 0x03ffffff,
183                 .flags = IORESOURCE_MEM,
184         },
185 };
186
187 static unsigned long save_lcd_regs[10];
188
189 static int cmx270_marathon_probe(struct fb_info *fb)
190 {
191         /* save PXA-270 pin settings before enabling 2700G */
192         save_lcd_regs[0] = GPDR1;
193         save_lcd_regs[1] = GPDR2;
194         save_lcd_regs[2] = GAFR1_U;
195         save_lcd_regs[3] = GAFR2_L;
196         save_lcd_regs[4] = GAFR2_U;
197
198         /* Disable PXA-270 on-chip controller driving pins */
199         GPDR1 &= ~(0xfc000000);
200         GPDR2 &= ~(0x00c03fff);
201         GAFR1_U &= ~(0xfff00000);
202         GAFR2_L &= ~(0x0fffffff);
203         GAFR2_U &= ~(0x0000f000);
204         return 0;
205 }
206
207 static int cmx270_marathon_remove(struct fb_info *fb)
208 {
209         GPDR1 =   save_lcd_regs[0];
210         GPDR2 =   save_lcd_regs[1];
211         GAFR1_U = save_lcd_regs[2];
212         GAFR2_L = save_lcd_regs[3];
213         GAFR2_U = save_lcd_regs[4];
214         return 0;
215 }
216
217 static struct mbxfb_platform_data cmx270_2700G_data = {
218         .xres = {
219                 .min = 240,
220                 .max = 1200,
221                 .defval = 640,
222         },
223         .yres = {
224                 .min = 240,
225                 .max = 1200,
226                 .defval = 480,
227         },
228         .bpp = {
229                 .min = 16,
230                 .max = 32,
231                 .defval = 16,
232         },
233         .memsize = 8*1024*1024,
234         .probe = cmx270_marathon_probe,
235         .remove = cmx270_marathon_remove,
236 };
237
238 static struct platform_device cmx270_2700G = {
239         .name           = "mbx-fb",
240         .dev            = {
241                 .platform_data  = &cmx270_2700G_data,
242                 .dma_mask       = &fb_dma_mask,
243                 .coherent_dma_mask = 0xffffffff,
244         },
245         .num_resources  = ARRAY_SIZE(cmx270_2700G_resource),
246         .resource       = cmx270_2700G_resource,
247         .id             = -1,
248 };
249
250 static void __init cmx270_init_2700G(void)
251 {
252         platform_device_register(&cmx270_2700G);
253 }
254 #else
255 static inline void cmx270_init_2700G(void) {}
256 #endif
257
258 /* PXA27x OHCI controller setup */
259 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
260 static struct pxaohci_platform_data cmx270_ohci_platform_data = {
261         .port_mode      = PMM_PERPORT_MODE,
262         .flags          = ENABLE_PORT1 | ENABLE_PORT2 | POWER_CONTROL_LOW,
263 };
264
265 static void __init cmx270_init_ohci(void)
266 {
267         pxa_set_ohci_info(&cmx270_ohci_platform_data);
268 }
269 #else
270 static inline void cmx270_init_ohci(void) {}
271 #endif
272
273 #if defined(CONFIG_MMC) || defined(CONFIG_MMC_MODULE)
274 static int cmx270_mci_init(struct device *dev,
275                            irq_handler_t cmx270_detect_int,
276                            void *data)
277 {
278         int err;
279
280         err = gpio_request(GPIO105_MMC_POWER, "MMC/SD power");
281         if (err) {
282                 dev_warn(dev, "power gpio unavailable\n");
283                 return err;
284         }
285
286         gpio_direction_output(GPIO105_MMC_POWER, 0);
287
288         err = request_irq(CMX270_MMC_IRQ, cmx270_detect_int,
289                           IRQF_DISABLED | IRQF_TRIGGER_FALLING,
290                           "MMC card detect", data);
291         if (err) {
292                 gpio_free(GPIO105_MMC_POWER);
293                 dev_err(dev, "cmx270_mci_init: MMC/SD: can't"
294                         " request MMC card detect IRQ\n");
295         }
296
297         return err;
298 }
299
300 static void cmx270_mci_setpower(struct device *dev, unsigned int vdd)
301 {
302         struct pxamci_platform_data *p_d = dev->platform_data;
303
304         if ((1 << vdd) & p_d->ocr_mask) {
305                 dev_dbg(dev, "power on\n");
306                 gpio_set_value(GPIO105_MMC_POWER, 0);
307         } else {
308                 gpio_set_value(GPIO105_MMC_POWER, 1);
309                 dev_dbg(dev, "power off\n");
310         }
311 }
312
313 static void cmx270_mci_exit(struct device *dev, void *data)
314 {
315         free_irq(CMX270_MMC_IRQ, data);
316         gpio_free(GPIO105_MMC_POWER);
317 }
318
319 static struct pxamci_platform_data cmx270_mci_platform_data = {
320         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
321         .init           = cmx270_mci_init,
322         .setpower       = cmx270_mci_setpower,
323         .exit           = cmx270_mci_exit,
324 };
325
326 static void __init cmx270_init_mmc(void)
327 {
328         pxa_set_mci_info(&cmx270_mci_platform_data);
329 }
330 #else
331 static inline void cmx270_init_mmc(void) {}
332 #endif
333
334 void __init cmx270_init(void)
335 {
336         pxa2xx_mfp_config(ARRAY_AND_SIZE(cmx270_pin_config));
337
338 #ifdef CONFIG_PM
339         pxa27x_set_pwrmode(PWRMODE_DEEPSLEEP);
340 #endif
341
342         cmx270_init_rtc();
343         cmx270_init_mmc();
344         cmx270_init_ohci();
345         cmx270_init_2700G();
346 }