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 <asm/sizes.h>
28
29 #include <mach/audio.h>
30 #include <mach/colibri.h>
31 #include <mach/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
colibri_pxa270_nor_init(void)198 static void __init colibri_pxa270_nor_init(void)
199 {
200 platform_device_register(&colibri_pxa270_flash_device);
201 }
202 #else
colibri_pxa270_nor_init(void)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
colibri_pxa270_eth_init(void)235 static void __init colibri_pxa270_eth_init(void)
236 {
237 platform_device_register(&colibri_pxa270_dm9000_device);
238 }
239 #else
colibri_pxa270_eth_init(void)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
colibri_pxa270_tsc_init(void)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
colibri_pxa270_tsc_init(void)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
colibri_pxa270_init(void)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 */
colibri_pxa270_income_init(void)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
334