Merge tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
[sfrench/cifs-2.6.git] / arch / arm / mach-pxa / colibri-pxa270.c
1 /*
2  *  linux/arch/arm/mach-pxa/colibri-pxa270.c
3  *
4  *  Support for Toradex PXA270 based Colibri module
5  *  Daniel Mack <daniel@caiaq.de>
6  *  Marek Vasut <marek.vasut@gmail.com>
7  *
8  *  This program is free software; you can redistribute it and/or modify
9  *  it under the terms of the GNU General Public License version 2 as
10  *  published by the Free Software Foundation.
11  */
12
13 #include <linux/init.h>
14 #include <linux/interrupt.h>
15 #include <linux/moduleparam.h>
16 #include <linux/kernel.h>
17 #include <linux/mtd/mtd.h>
18 #include <linux/mtd/partitions.h>
19 #include <linux/mtd/physmap.h>
20 #include <linux/platform_device.h>
21 #include <linux/regulator/machine.h>
22 #include <linux/ucb1400.h>
23
24 #include <asm/mach/arch.h>
25 #include <asm/mach/flash.h>
26 #include <asm/mach-types.h>
27 #include <linux/sizes.h>
28
29 #include <mach/audio.h>
30 #include "colibri.h"
31 #include "pxa27x.h"
32
33 #include "devices.h"
34 #include "generic.h"
35
36 /******************************************************************************
37  * Evaluation board MFP
38  ******************************************************************************/
39 #ifdef   CONFIG_MACH_COLIBRI_EVALBOARD
40 static mfp_cfg_t colibri_pxa270_evalboard_pin_config[] __initdata = {
41         /* MMC */
42         GPIO32_MMC_CLK,
43         GPIO92_MMC_DAT_0,
44         GPIO109_MMC_DAT_1,
45         GPIO110_MMC_DAT_2,
46         GPIO111_MMC_DAT_3,
47         GPIO112_MMC_CMD,
48         GPIO0_GPIO,     /* SD detect */
49
50         /* FFUART */
51         GPIO39_FFUART_TXD,
52         GPIO34_FFUART_RXD,
53
54         /* UHC */
55         GPIO88_USBH1_PWR,
56         GPIO89_USBH1_PEN,
57         GPIO119_USBH2_PWR,
58         GPIO120_USBH2_PEN,
59
60         /* PCMCIA */
61         GPIO85_nPCE_1,
62         GPIO54_nPCE_2,
63         GPIO55_nPREG,
64         GPIO50_nPIOR,
65         GPIO51_nPIOW,
66         GPIO49_nPWE,
67         GPIO48_nPOE,
68         GPIO57_nIOIS16,
69         GPIO56_nPWAIT,
70         GPIO104_PSKTSEL,
71         GPIO53_GPIO,    /* RESET */
72         GPIO83_GPIO,    /* BVD1 */
73         GPIO82_GPIO,    /* BVD2 */
74         GPIO1_GPIO,     /* READY */
75         GPIO84_GPIO,    /* DETECT */
76         GPIO107_GPIO,   /* PPEN */
77
78         /* I2C */
79         GPIO117_I2C_SCL,
80         GPIO118_I2C_SDA,
81 };
82 #else
83 static mfp_cfg_t colibri_pxa270_evalboard_pin_config[] __initdata = {};
84 #endif
85
86 #ifdef  CONFIG_MACH_COLIBRI_PXA270_INCOME
87 static mfp_cfg_t income_pin_config[] __initdata = {
88         /* MMC */
89         GPIO32_MMC_CLK,
90         GPIO92_MMC_DAT_0,
91         GPIO109_MMC_DAT_1,
92         GPIO110_MMC_DAT_2,
93         GPIO111_MMC_DAT_3,
94         GPIO112_MMC_CMD,
95         GPIO0_GPIO,     /* SD detect */
96         GPIO1_GPIO,     /* SD read-only */
97
98         /* FFUART */
99         GPIO39_FFUART_TXD,
100         GPIO34_FFUART_RXD,
101
102         /* BFUART */
103         GPIO42_BTUART_RXD,
104         GPIO43_BTUART_TXD,
105         GPIO45_BTUART_RTS,
106
107         /* STUART */
108         GPIO46_STUART_RXD,
109         GPIO47_STUART_TXD,
110
111         /* UHC */
112         GPIO88_USBH1_PWR,
113         GPIO89_USBH1_PEN,
114
115         /* LCD */
116         GPIOxx_LCD_TFT_16BPP,
117
118         /* PWM */
119         GPIO16_PWM0_OUT,
120
121         /* I2C */
122         GPIO117_I2C_SCL,
123         GPIO118_I2C_SDA,
124
125         /* LED */
126         GPIO54_GPIO,    /* LED A */
127         GPIO55_GPIO,    /* LED B */
128 };
129 #else
130 static mfp_cfg_t income_pin_config[] __initdata = {};
131 #endif
132
133 /******************************************************************************
134  * Pin configuration
135  ******************************************************************************/
136 static mfp_cfg_t colibri_pxa270_pin_config[] __initdata = {
137         /* Ethernet */
138         GPIO78_nCS_2,   /* Ethernet CS */
139         GPIO114_GPIO,   /* Ethernet IRQ */
140
141         /* AC97 */
142         GPIO28_AC97_BITCLK,
143         GPIO29_AC97_SDATA_IN_0,
144         GPIO30_AC97_SDATA_OUT,
145         GPIO31_AC97_SYNC,
146         GPIO95_AC97_nRESET,
147         GPIO98_AC97_SYSCLK,
148         GPIO113_GPIO,   /* Touchscreen IRQ */
149 };
150
151 /******************************************************************************
152  * NOR Flash
153  ******************************************************************************/
154 #if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
155 static struct mtd_partition colibri_partitions[] = {
156         {
157                 .name =         "Bootloader",
158                 .offset =       0x00000000,
159                 .size =         0x00040000,
160                 .mask_flags =   MTD_WRITEABLE   /* force read-only */
161         }, {
162                 .name =         "Kernel",
163                 .offset =       0x00040000,
164                 .size =         0x00400000,
165                 .mask_flags =   0
166         }, {
167                 .name =         "Rootfs",
168                 .offset =       0x00440000,
169                 .size =         MTDPART_SIZ_FULL,
170                 .mask_flags =   0
171         }
172 };
173
174 static struct physmap_flash_data colibri_flash_data[] = {
175         {
176                 .width          = 4,                    /* bankwidth in bytes */
177                 .parts          = colibri_partitions,
178                 .nr_parts       = ARRAY_SIZE(colibri_partitions)
179         }
180 };
181
182 static struct resource colibri_pxa270_flash_resource = {
183         .start  = PXA_CS0_PHYS,
184         .end    = PXA_CS0_PHYS + SZ_32M - 1,
185         .flags  = IORESOURCE_MEM,
186 };
187
188 static struct platform_device colibri_pxa270_flash_device = {
189         .name   = "physmap-flash",
190         .id     = 0,
191         .dev    = {
192                 .platform_data = colibri_flash_data,
193         },
194         .resource = &colibri_pxa270_flash_resource,
195         .num_resources = 1,
196 };
197
198 static void __init colibri_pxa270_nor_init(void)
199 {
200         platform_device_register(&colibri_pxa270_flash_device);
201 }
202 #else
203 static inline void colibri_pxa270_nor_init(void) {}
204 #endif
205
206 /******************************************************************************
207  * Ethernet
208  ******************************************************************************/
209 #if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
210 static struct resource colibri_pxa270_dm9000_resources[] = {
211         {
212                 .start  = PXA_CS2_PHYS,
213                 .end    = PXA_CS2_PHYS + 3,
214                 .flags  = IORESOURCE_MEM,
215         },
216         {
217                 .start  = PXA_CS2_PHYS + 4,
218                 .end    = PXA_CS2_PHYS + 4 + 500,
219                 .flags  = IORESOURCE_MEM,
220         },
221         {
222                 .start  = PXA_GPIO_TO_IRQ(GPIO114_COLIBRI_PXA270_ETH_IRQ),
223                 .end    = PXA_GPIO_TO_IRQ(GPIO114_COLIBRI_PXA270_ETH_IRQ),
224                 .flags  = IORESOURCE_IRQ | IRQF_TRIGGER_RISING,
225         },
226 };
227
228 static struct platform_device colibri_pxa270_dm9000_device = {
229         .name           = "dm9000",
230         .id             = -1,
231         .num_resources  = ARRAY_SIZE(colibri_pxa270_dm9000_resources),
232         .resource       = colibri_pxa270_dm9000_resources,
233 };
234
235 static void __init colibri_pxa270_eth_init(void)
236 {
237         platform_device_register(&colibri_pxa270_dm9000_device);
238 }
239 #else
240 static inline void colibri_pxa270_eth_init(void) {}
241 #endif
242
243 /******************************************************************************
244  * Audio and Touchscreen
245  ******************************************************************************/
246 #if     defined(CONFIG_TOUCHSCREEN_UCB1400) || \
247         defined(CONFIG_TOUCHSCREEN_UCB1400_MODULE)
248 static pxa2xx_audio_ops_t colibri_pxa270_ac97_pdata = {
249         .reset_gpio     = 95,
250 };
251
252 static struct ucb1400_pdata colibri_pxa270_ucb1400_pdata = {
253         .irq            = PXA_GPIO_TO_IRQ(GPIO113_COLIBRI_PXA270_TS_IRQ),
254 };
255
256 static struct platform_device colibri_pxa270_ucb1400_device = {
257         .name           = "ucb1400_core",
258         .id             = -1,
259         .dev            = {
260                 .platform_data = &colibri_pxa270_ucb1400_pdata,
261         },
262 };
263
264 static void __init colibri_pxa270_tsc_init(void)
265 {
266         pxa_set_ac97_info(&colibri_pxa270_ac97_pdata);
267         platform_device_register(&colibri_pxa270_ucb1400_device);
268 }
269 #else
270 static inline void colibri_pxa270_tsc_init(void) {}
271 #endif
272
273 static int colibri_pxa270_baseboard;
274 core_param(colibri_pxa270_baseboard, colibri_pxa270_baseboard, int, 0444);
275
276 static void __init colibri_pxa270_init(void)
277 {
278         pxa2xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa270_pin_config));
279
280         colibri_pxa270_nor_init();
281         colibri_pxa270_eth_init();
282         colibri_pxa270_tsc_init();
283
284         switch (colibri_pxa270_baseboard) {
285         case COLIBRI_EVALBOARD:
286                 pxa2xx_mfp_config(ARRAY_AND_SIZE(
287                         colibri_pxa270_evalboard_pin_config));
288                 colibri_evalboard_init();
289                 break;
290         case COLIBRI_PXA270_INCOME:
291                 pxa2xx_mfp_config(ARRAY_AND_SIZE(income_pin_config));
292                 colibri_pxa270_income_boardinit();
293                 break;
294         default:
295                 printk(KERN_ERR "Illegal colibri_pxa270_baseboard type %d\n",
296                                 colibri_pxa270_baseboard);
297         }
298
299         regulator_has_full_constraints();
300 }
301
302 /* The "Income s.r.o. SH-Dmaster PXA270 SBC" board can be booted either
303  * with the INCOME mach type or with COLIBRI and the kernel parameter
304  * "colibri_pxa270_baseboard=1"
305  */
306 static void __init colibri_pxa270_income_init(void)
307 {
308         colibri_pxa270_baseboard = COLIBRI_PXA270_INCOME;
309         colibri_pxa270_init();
310 }
311
312 MACHINE_START(COLIBRI, "Toradex Colibri PXA270")
313         .atag_offset    = 0x100,
314         .init_machine   = colibri_pxa270_init,
315         .map_io         = pxa27x_map_io,
316         .nr_irqs        = PXA_NR_IRQS,
317         .init_irq       = pxa27x_init_irq,
318         .handle_irq     = pxa27x_handle_irq,
319         .init_time      = pxa_timer_init,
320         .restart        = pxa_restart,
321 MACHINE_END
322
323 MACHINE_START(INCOME, "Income s.r.o. SH-Dmaster PXA270 SBC")
324         .atag_offset    = 0x100,
325         .init_machine   = colibri_pxa270_income_init,
326         .map_io         = pxa27x_map_io,
327         .nr_irqs        = PXA_NR_IRQS,
328         .init_irq       = pxa27x_init_irq,
329         .handle_irq     = pxa27x_handle_irq,
330         .init_time      = pxa_timer_init,
331         .restart        = pxa_restart,
332 MACHINE_END
333