[ARM] 2988/1: Replace map_desc.physical with map_desc.pfn: PXA
[linux-3.10.git] / arch / arm / mach-pxa / generic.c
1 /*
2  *  linux/arch/arm/mach-pxa/generic.c
3  *
4  *  Author:     Nicolas Pitre
5  *  Created:    Jun 15, 2001
6  *  Copyright:  MontaVista Software Inc.
7  *
8  * Code common to all PXA machines.
9  *
10  * This program is free software; you can redistribute it and/or modify
11  * it under the terms of the GNU General Public License version 2 as
12  * published by the Free Software Foundation.
13  *
14  * Since this file should be linked before any other machine specific file,
15  * the __initcall() here will be executed first.  This serves as default
16  * initialization stuff for PXA machines which can be overridden later if
17  * need be.
18  */
19 #include <linux/module.h>
20 #include <linux/kernel.h>
21 #include <linux/init.h>
22 #include <linux/delay.h>
23 #include <linux/device.h>
24 #include <linux/ioport.h>
25 #include <linux/pm.h>
26
27 #include <asm/hardware.h>
28 #include <asm/irq.h>
29 #include <asm/system.h>
30 #include <asm/pgtable.h>
31 #include <asm/mach/map.h>
32
33 #include <asm/arch/pxa-regs.h>
34 #include <asm/arch/udc.h>
35 #include <asm/arch/pxafb.h>
36 #include <asm/arch/mmc.h>
37 #include <asm/arch/i2c.h>
38
39 #include "generic.h"
40
41 /*
42  * Handy function to set GPIO alternate functions
43  */
44
45 void pxa_gpio_mode(int gpio_mode)
46 {
47         unsigned long flags;
48         int gpio = gpio_mode & GPIO_MD_MASK_NR;
49         int fn = (gpio_mode & GPIO_MD_MASK_FN) >> 8;
50         int gafr;
51
52         local_irq_save(flags);
53         if (gpio_mode & GPIO_DFLT_LOW)
54                 GPCR(gpio) = GPIO_bit(gpio);
55         else if (gpio_mode & GPIO_DFLT_HIGH)
56                 GPSR(gpio) = GPIO_bit(gpio);
57         if (gpio_mode & GPIO_MD_MASK_DIR)
58                 GPDR(gpio) |= GPIO_bit(gpio);
59         else
60                 GPDR(gpio) &= ~GPIO_bit(gpio);
61         gafr = GAFR(gpio) & ~(0x3 << (((gpio) & 0xf)*2));
62         GAFR(gpio) = gafr |  (fn  << (((gpio) & 0xf)*2));
63         local_irq_restore(flags);
64 }
65
66 EXPORT_SYMBOL(pxa_gpio_mode);
67
68 /*
69  * Routine to safely enable or disable a clock in the CKEN
70  */
71 void pxa_set_cken(int clock, int enable)
72 {
73         unsigned long flags;
74         local_irq_save(flags);
75
76         if (enable)
77                 CKEN |= clock;
78         else
79                 CKEN &= ~clock;
80
81         local_irq_restore(flags);
82 }
83
84 EXPORT_SYMBOL(pxa_set_cken);
85
86 /*
87  * Intel PXA2xx internal register mapping.
88  *
89  * Note 1: not all PXA2xx variants implement all those addresses.
90  *
91  * Note 2: virtual 0xfffe0000-0xffffffff is reserved for the vector table
92  *         and cache flush area.
93  */
94 static struct map_desc standard_io_desc[] __initdata = {
95         {       /* Devs */
96                 .virtual        =  0xf2000000,
97                 .pfn            = __phys_to_pfn(0x40000000),
98                 .length         = 0x02000000,
99                 .type           = MT_DEVICE
100         }, {    /* LCD */
101                 .virtual        =  0xf4000000,
102                 .pfn            = __phys_to_pfn(0x44000000),
103                 .length         = 0x00100000,
104                 .type           = MT_DEVICE
105         }, {    /* Mem Ctl */
106                 .virtual        =  0xf6000000,
107                 .pfn            = __phys_to_pfn(0x48000000),
108                 .length         = 0x00100000,
109                 .type           = MT_DEVICE
110         }, {    /* USB host */
111                 .virtual        =  0xf8000000,
112                 .pfn            = __phys_to_pfn(0x4c000000),
113                 .length         = 0x00100000,
114                 .type           = MT_DEVICE
115         }, {    /* Camera */
116                 .virtual        =  0xfa000000,
117                 .pfn            = __phys_to_pfn(0x50000000),
118                 .length         = 0x00100000,
119                 .type           = MT_DEVICE
120         }, {    /* IMem ctl */
121                 .virtual        =  0xfe000000,
122                 .pfn            = __phys_to_pfn(0x58000000),
123                 .length         = 0x00100000,
124                 .type           = MT_DEVICE
125         }, {    /* UNCACHED_PHYS_0 */
126                 .virtual        = 0xff000000,
127                 .pfn            = __phys_to_pfn(0x00000000),
128                 .length         = 0x00100000,
129                 .type           = MT_DEVICE
130         }
131 };
132
133 void __init pxa_map_io(void)
134 {
135         iotable_init(standard_io_desc, ARRAY_SIZE(standard_io_desc));
136         get_clk_frequency_khz(1);
137 }
138
139
140 static struct resource pxamci_resources[] = {
141         [0] = {
142                 .start  = 0x41100000,
143                 .end    = 0x41100fff,
144                 .flags  = IORESOURCE_MEM,
145         },
146         [1] = {
147                 .start  = IRQ_MMC,
148                 .end    = IRQ_MMC,
149                 .flags  = IORESOURCE_IRQ,
150         },
151 };
152
153 static u64 pxamci_dmamask = 0xffffffffUL;
154
155 static struct platform_device pxamci_device = {
156         .name           = "pxa2xx-mci",
157         .id             = -1,
158         .dev            = {
159                 .dma_mask = &pxamci_dmamask,
160                 .coherent_dma_mask = 0xffffffff,
161         },
162         .num_resources  = ARRAY_SIZE(pxamci_resources),
163         .resource       = pxamci_resources,
164 };
165
166 void __init pxa_set_mci_info(struct pxamci_platform_data *info)
167 {
168         pxamci_device.dev.platform_data = info;
169 }
170
171
172 static struct pxa2xx_udc_mach_info pxa_udc_info;
173
174 void __init pxa_set_udc_info(struct pxa2xx_udc_mach_info *info)
175 {
176         memcpy(&pxa_udc_info, info, sizeof *info);
177 }
178
179 static struct resource pxa2xx_udc_resources[] = {
180         [0] = {
181                 .start  = 0x40600000,
182                 .end    = 0x4060ffff,
183                 .flags  = IORESOURCE_MEM,
184         },
185         [1] = {
186                 .start  = IRQ_USB,
187                 .end    = IRQ_USB,
188                 .flags  = IORESOURCE_IRQ,
189         },
190 };
191
192 static u64 udc_dma_mask = ~(u32)0;
193
194 static struct platform_device udc_device = {
195         .name           = "pxa2xx-udc",
196         .id             = -1,
197         .resource       = pxa2xx_udc_resources,
198         .num_resources  = ARRAY_SIZE(pxa2xx_udc_resources),
199         .dev            =  {
200                 .platform_data  = &pxa_udc_info,
201                 .dma_mask       = &udc_dma_mask,
202         }
203 };
204
205 static struct pxafb_mach_info pxa_fb_info;
206
207 void __init set_pxa_fb_info(struct pxafb_mach_info *hard_pxa_fb_info)
208 {
209         memcpy(&pxa_fb_info,hard_pxa_fb_info,sizeof(struct pxafb_mach_info));
210 }
211
212 static struct resource pxafb_resources[] = {
213         [0] = {
214                 .start  = 0x44000000,
215                 .end    = 0x4400ffff,
216                 .flags  = IORESOURCE_MEM,
217         },
218         [1] = {
219                 .start  = IRQ_LCD,
220                 .end    = IRQ_LCD,
221                 .flags  = IORESOURCE_IRQ,
222         },
223 };
224
225 static u64 fb_dma_mask = ~(u64)0;
226
227 static struct platform_device pxafb_device = {
228         .name           = "pxa2xx-fb",
229         .id             = -1,
230         .dev            = {
231                 .platform_data  = &pxa_fb_info,
232                 .dma_mask       = &fb_dma_mask,
233                 .coherent_dma_mask = 0xffffffff,
234         },
235         .num_resources  = ARRAY_SIZE(pxafb_resources),
236         .resource       = pxafb_resources,
237 };
238
239 void __init set_pxa_fb_parent(struct device *parent_dev)
240 {
241         pxafb_device.dev.parent = parent_dev;
242 }
243
244 static struct platform_device ffuart_device = {
245         .name           = "pxa2xx-uart",
246         .id             = 0,
247 };
248 static struct platform_device btuart_device = {
249         .name           = "pxa2xx-uart",
250         .id             = 1,
251 };
252 static struct platform_device stuart_device = {
253         .name           = "pxa2xx-uart",
254         .id             = 2,
255 };
256
257 static struct resource i2c_resources[] = {
258         {
259                 .start  = 0x40301680,
260                 .end    = 0x403016a3,
261                 .flags  = IORESOURCE_MEM,
262         }, {
263                 .start  = IRQ_I2C,
264                 .end    = IRQ_I2C,
265                 .flags  = IORESOURCE_IRQ,
266         },
267 };
268
269 static struct platform_device i2c_device = {
270         .name           = "pxa2xx-i2c",
271         .id             = 0,
272         .resource       = i2c_resources,
273         .num_resources  = ARRAY_SIZE(i2c_resources),
274 };
275
276 void __init pxa_set_i2c_info(struct i2c_pxa_platform_data *info)
277 {
278         i2c_device.dev.platform_data = info;
279 }
280
281 static struct resource i2s_resources[] = {
282         {
283                 .start  = 0x40400000,
284                 .end    = 0x40400083,
285                 .flags  = IORESOURCE_MEM,
286         }, {
287                 .start  = IRQ_I2S,
288                 .end    = IRQ_I2S,
289                 .flags  = IORESOURCE_IRQ,
290         },
291 };
292
293 static struct platform_device i2s_device = {
294         .name           = "pxa2xx-i2s",
295         .id             = -1,
296         .resource       = i2c_resources,
297         .num_resources  = ARRAY_SIZE(i2s_resources),
298 };
299
300 static struct platform_device *devices[] __initdata = {
301         &pxamci_device,
302         &udc_device,
303         &pxafb_device,
304         &ffuart_device,
305         &btuart_device,
306         &stuart_device,
307         &i2c_device,
308         &i2s_device,
309 };
310
311 static int __init pxa_init(void)
312 {
313         return platform_add_devices(devices, ARRAY_SIZE(devices));
314 }
315
316 subsys_initcall(pxa_init);