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 }
347
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