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