Commit | Line | Data |
---|---|---|
1da177e4 LT |
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> | |
eb9181a2 | 37 | #include <asm/arch/i2c.h> |
1da177e4 LT |
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 | /* virtual physical length type */ | |
96 | { 0xf2000000, 0x40000000, 0x02000000, MT_DEVICE }, /* Devs */ | |
97 | { 0xf4000000, 0x44000000, 0x00100000, MT_DEVICE }, /* LCD */ | |
98 | { 0xf6000000, 0x48000000, 0x00100000, MT_DEVICE }, /* Mem Ctl */ | |
99 | { 0xf8000000, 0x4c000000, 0x00100000, MT_DEVICE }, /* USB host */ | |
100 | { 0xfa000000, 0x50000000, 0x00100000, MT_DEVICE }, /* Camera */ | |
101 | { 0xfe000000, 0x58000000, 0x00100000, MT_DEVICE }, /* IMem ctl */ | |
102 | { 0xff000000, 0x00000000, 0x00100000, MT_DEVICE } /* UNCACHED_PHYS_0 */ | |
103 | }; | |
104 | ||
105 | void __init pxa_map_io(void) | |
106 | { | |
107 | iotable_init(standard_io_desc, ARRAY_SIZE(standard_io_desc)); | |
108 | get_clk_frequency_khz(1); | |
109 | } | |
110 | ||
111 | ||
112 | static struct resource pxamci_resources[] = { | |
113 | [0] = { | |
114 | .start = 0x41100000, | |
115 | .end = 0x41100fff, | |
116 | .flags = IORESOURCE_MEM, | |
117 | }, | |
118 | [1] = { | |
119 | .start = IRQ_MMC, | |
120 | .end = IRQ_MMC, | |
121 | .flags = IORESOURCE_IRQ, | |
122 | }, | |
123 | }; | |
124 | ||
125 | static u64 pxamci_dmamask = 0xffffffffUL; | |
126 | ||
127 | static struct platform_device pxamci_device = { | |
128 | .name = "pxa2xx-mci", | |
129 | .id = -1, | |
130 | .dev = { | |
131 | .dma_mask = &pxamci_dmamask, | |
132 | .coherent_dma_mask = 0xffffffff, | |
133 | }, | |
134 | .num_resources = ARRAY_SIZE(pxamci_resources), | |
135 | .resource = pxamci_resources, | |
136 | }; | |
137 | ||
138 | void __init pxa_set_mci_info(struct pxamci_platform_data *info) | |
139 | { | |
140 | pxamci_device.dev.platform_data = info; | |
141 | } | |
142 | ||
143 | ||
144 | static struct pxa2xx_udc_mach_info pxa_udc_info; | |
145 | ||
146 | void __init pxa_set_udc_info(struct pxa2xx_udc_mach_info *info) | |
147 | { | |
148 | memcpy(&pxa_udc_info, info, sizeof *info); | |
149 | } | |
150 | ||
151 | static struct resource pxa2xx_udc_resources[] = { | |
152 | [0] = { | |
153 | .start = 0x40600000, | |
154 | .end = 0x4060ffff, | |
155 | .flags = IORESOURCE_MEM, | |
156 | }, | |
157 | [1] = { | |
158 | .start = IRQ_USB, | |
159 | .end = IRQ_USB, | |
160 | .flags = IORESOURCE_IRQ, | |
161 | }, | |
162 | }; | |
163 | ||
164 | static u64 udc_dma_mask = ~(u32)0; | |
165 | ||
166 | static struct platform_device udc_device = { | |
167 | .name = "pxa2xx-udc", | |
168 | .id = -1, | |
169 | .resource = pxa2xx_udc_resources, | |
170 | .num_resources = ARRAY_SIZE(pxa2xx_udc_resources), | |
171 | .dev = { | |
172 | .platform_data = &pxa_udc_info, | |
173 | .dma_mask = &udc_dma_mask, | |
174 | } | |
175 | }; | |
176 | ||
177 | static struct pxafb_mach_info pxa_fb_info; | |
178 | ||
179 | void __init set_pxa_fb_info(struct pxafb_mach_info *hard_pxa_fb_info) | |
180 | { | |
181 | memcpy(&pxa_fb_info,hard_pxa_fb_info,sizeof(struct pxafb_mach_info)); | |
182 | } | |
183 | ||
184 | static struct resource pxafb_resources[] = { | |
185 | [0] = { | |
186 | .start = 0x44000000, | |
187 | .end = 0x4400ffff, | |
188 | .flags = IORESOURCE_MEM, | |
189 | }, | |
190 | [1] = { | |
191 | .start = IRQ_LCD, | |
192 | .end = IRQ_LCD, | |
193 | .flags = IORESOURCE_IRQ, | |
194 | }, | |
195 | }; | |
196 | ||
197 | static u64 fb_dma_mask = ~(u64)0; | |
198 | ||
199 | static struct platform_device pxafb_device = { | |
200 | .name = "pxa2xx-fb", | |
201 | .id = -1, | |
202 | .dev = { | |
203 | .platform_data = &pxa_fb_info, | |
204 | .dma_mask = &fb_dma_mask, | |
205 | .coherent_dma_mask = 0xffffffff, | |
206 | }, | |
207 | .num_resources = ARRAY_SIZE(pxafb_resources), | |
208 | .resource = pxafb_resources, | |
209 | }; | |
210 | ||
211 | static struct platform_device ffuart_device = { | |
212 | .name = "pxa2xx-uart", | |
213 | .id = 0, | |
214 | }; | |
215 | static struct platform_device btuart_device = { | |
216 | .name = "pxa2xx-uart", | |
217 | .id = 1, | |
218 | }; | |
219 | static struct platform_device stuart_device = { | |
220 | .name = "pxa2xx-uart", | |
221 | .id = 2, | |
222 | }; | |
223 | ||
bb9bffcb RK |
224 | static struct resource i2c_resources[] = { |
225 | { | |
226 | .start = 0x40301680, | |
227 | .end = 0x403016a3, | |
228 | .flags = IORESOURCE_MEM, | |
229 | }, { | |
230 | .start = IRQ_I2C, | |
231 | .end = IRQ_I2C, | |
232 | .flags = IORESOURCE_IRQ, | |
233 | }, | |
234 | }; | |
235 | ||
236 | static struct platform_device i2c_device = { | |
237 | .name = "pxa2xx-i2c", | |
238 | .id = 0, | |
239 | .resource = i2c_resources, | |
240 | .num_resources = ARRAY_SIZE(i2c_resources), | |
241 | }; | |
242 | ||
243 | void __init pxa_set_i2c_info(struct i2c_pxa_platform_data *info) | |
244 | { | |
245 | i2c_device.dev.platform_data = info; | |
246 | } | |
247 | ||
1da177e4 LT |
248 | static struct platform_device *devices[] __initdata = { |
249 | &pxamci_device, | |
250 | &udc_device, | |
251 | &pxafb_device, | |
252 | &ffuart_device, | |
253 | &btuart_device, | |
254 | &stuart_device, | |
bb9bffcb | 255 | &i2c_device, |
1da177e4 LT |
256 | }; |
257 | ||
258 | static int __init pxa_init(void) | |
259 | { | |
260 | return platform_add_devices(devices, ARRAY_SIZE(devices)); | |
261 | } | |
262 | ||
263 | subsys_initcall(pxa_init); |