1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * linux/arch/arm/mach-pxa/colibri-pxa270.c
4 *
5 * Support for Toradex PXA270 based Colibri module
6 * Daniel Mack <daniel@caiaq.de>
7 * Marek Vasut <marek.vasut@gmail.com>
8 */
9
10 #include <linux/init.h>
11 #include <linux/interrupt.h>
12 #include <linux/moduleparam.h>
13 #include <linux/kernel.h>
14 #include <linux/mtd/mtd.h>
15 #include <linux/mtd/partitions.h>
16 #include <linux/mtd/physmap.h>
17 #include <linux/platform_device.h>
18 #include <linux/regulator/machine.h>
19 #include <linux/ucb1400.h>
20
21 #include <asm/mach/arch.h>
22 #include <asm/mach/flash.h>
23 #include <asm/mach-types.h>
24 #include <linux/sizes.h>
25
26 #include <mach/audio.h>
27 #include "colibri.h"
28 #include "pxa27x.h"
29
30 #include "devices.h"
31 #include "generic.h"
32
33 /******************************************************************************
34 * Evaluation board MFP
35 ******************************************************************************/
36 #ifdef CONFIG_MACH_COLIBRI_EVALBOARD
37 static mfp_cfg_t colibri_pxa270_evalboard_pin_config[] __initdata = {
38 /* MMC */
39 GPIO32_MMC_CLK,
40 GPIO92_MMC_DAT_0,
41 GPIO109_MMC_DAT_1,
42 GPIO110_MMC_DAT_2,
43 GPIO111_MMC_DAT_3,
44 GPIO112_MMC_CMD,
45 GPIO0_GPIO, /* SD detect */
46
47 /* FFUART */
48 GPIO39_FFUART_TXD,
49 GPIO34_FFUART_RXD,
50
51 /* UHC */
52 GPIO88_USBH1_PWR,
53 GPIO89_USBH1_PEN,
54 GPIO119_USBH2_PWR,
55 GPIO120_USBH2_PEN,
56
57 /* PCMCIA */
58 GPIO85_nPCE_1,
59 GPIO54_nPCE_2,
60 GPIO55_nPREG,
61 GPIO50_nPIOR,
62 GPIO51_nPIOW,
63 GPIO49_nPWE,
64 GPIO48_nPOE,
65 GPIO57_nIOIS16,
66 GPIO56_nPWAIT,
67 GPIO104_PSKTSEL,
68 GPIO53_GPIO, /* RESET */
69 GPIO83_GPIO, /* BVD1 */
70 GPIO82_GPIO, /* BVD2 */
71 GPIO1_GPIO, /* READY */
72 GPIO84_GPIO, /* DETECT */
73 GPIO107_GPIO, /* PPEN */
74
75 /* I2C */
76 GPIO117_I2C_SCL,
77 GPIO118_I2C_SDA,
78 };
79 #else
80 static mfp_cfg_t colibri_pxa270_evalboard_pin_config[] __initdata = {};
81 #endif
82
83 #ifdef CONFIG_MACH_COLIBRI_PXA270_INCOME
84 static mfp_cfg_t income_pin_config[] __initdata = {
85 /* MMC */
86 GPIO32_MMC_CLK,
87 GPIO92_MMC_DAT_0,
88 GPIO109_MMC_DAT_1,
89 GPIO110_MMC_DAT_2,
90 GPIO111_MMC_DAT_3,
91 GPIO112_MMC_CMD,
92 GPIO0_GPIO, /* SD detect */
93 GPIO1_GPIO, /* SD read-only */
94
95 /* FFUART */
96 GPIO39_FFUART_TXD,
97 GPIO34_FFUART_RXD,
98
99 /* BFUART */
100 GPIO42_BTUART_RXD,
101 GPIO43_BTUART_TXD,
102 GPIO45_BTUART_RTS,
103
104 /* STUART */
105 GPIO46_STUART_RXD,
106 GPIO47_STUART_TXD,
107
108 /* UHC */
109 GPIO88_USBH1_PWR,
110 GPIO89_USBH1_PEN,
111
112 /* LCD */
113 GPIOxx_LCD_TFT_16BPP,
114
115 /* PWM */
116 GPIO16_PWM0_OUT,
117
118 /* I2C */
119 GPIO117_I2C_SCL,
120 GPIO118_I2C_SDA,
121
122 /* LED */
123 GPIO54_GPIO, /* LED A */
124 GPIO55_GPIO, /* LED B */
125 };
126 #else
127 static mfp_cfg_t income_pin_config[] __initdata = {};
128 #endif
129
130 /******************************************************************************
131 * Pin configuration
132 ******************************************************************************/
133 static mfp_cfg_t colibri_pxa270_pin_config[] __initdata = {
134 /* Ethernet */
135 GPIO78_nCS_2, /* Ethernet CS */
136 GPIO114_GPIO, /* Ethernet IRQ */
137
138 /* AC97 */
139 GPIO28_AC97_BITCLK,
140 GPIO29_AC97_SDATA_IN_0,
141 GPIO30_AC97_SDATA_OUT,
142 GPIO31_AC97_SYNC,
143 GPIO95_AC97_nRESET,
144 GPIO98_AC97_SYSCLK,
145 GPIO113_GPIO, /* Touchscreen IRQ */
146 };
147
148 /******************************************************************************
149 * NOR Flash
150 ******************************************************************************/
151 #if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
152 static struct mtd_partition colibri_partitions[] = {
153 {
154 .name = "Bootloader",
155 .offset = 0x00000000,
156 .size = 0x00040000,
157 .mask_flags = MTD_WRITEABLE /* force read-only */
158 }, {
159 .name = "Kernel",
160 .offset = 0x00040000,
161 .size = 0x00400000,
162 .mask_flags = 0
163 }, {
164 .name = "Rootfs",
165 .offset = 0x00440000,
166 .size = MTDPART_SIZ_FULL,
167 .mask_flags = 0
168 }
169 };
170
171 static struct physmap_flash_data colibri_flash_data[] = {
172 {
173 .width = 4, /* bankwidth in bytes */
174 .parts = colibri_partitions,
175 .nr_parts = ARRAY_SIZE(colibri_partitions)
176 }
177 };
178
179 static struct resource colibri_pxa270_flash_resource = {
180 .start = PXA_CS0_PHYS,
181 .end = PXA_CS0_PHYS + SZ_32M - 1,
182 .flags = IORESOURCE_MEM,
183 };
184
185 static struct platform_device colibri_pxa270_flash_device = {
186 .name = "physmap-flash",
187 .id = 0,
188 .dev = {
189 .platform_data = colibri_flash_data,
190 },
191 .resource = &colibri_pxa270_flash_resource,
192 .num_resources = 1,
193 };
194
colibri_pxa270_nor_init(void)195 static void __init colibri_pxa270_nor_init(void)
196 {
197 platform_device_register(&colibri_pxa270_flash_device);
198 }
199 #else
colibri_pxa270_nor_init(void)200 static inline void colibri_pxa270_nor_init(void) {}
201 #endif
202
203 /******************************************************************************
204 * Ethernet
205 ******************************************************************************/
206 #if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
207 static struct resource colibri_pxa270_dm9000_resources[] = {
208 {
209 .start = PXA_CS2_PHYS,
210 .end = PXA_CS2_PHYS + 3,
211 .flags = IORESOURCE_MEM,
212 },
213 {
214 .start = PXA_CS2_PHYS + 4,
215 .end = PXA_CS2_PHYS + 4 + 500,
216 .flags = IORESOURCE_MEM,
217 },
218 {
219 .start = PXA_GPIO_TO_IRQ(GPIO114_COLIBRI_PXA270_ETH_IRQ),
220 .end = PXA_GPIO_TO_IRQ(GPIO114_COLIBRI_PXA270_ETH_IRQ),
221 .flags = IORESOURCE_IRQ | IRQF_TRIGGER_RISING,
222 },
223 };
224
225 static struct platform_device colibri_pxa270_dm9000_device = {
226 .name = "dm9000",
227 .id = -1,
228 .num_resources = ARRAY_SIZE(colibri_pxa270_dm9000_resources),
229 .resource = colibri_pxa270_dm9000_resources,
230 };
231
colibri_pxa270_eth_init(void)232 static void __init colibri_pxa270_eth_init(void)
233 {
234 platform_device_register(&colibri_pxa270_dm9000_device);
235 }
236 #else
colibri_pxa270_eth_init(void)237 static inline void colibri_pxa270_eth_init(void) {}
238 #endif
239
240 /******************************************************************************
241 * Audio and Touchscreen
242 ******************************************************************************/
243 #if defined(CONFIG_TOUCHSCREEN_UCB1400) || \
244 defined(CONFIG_TOUCHSCREEN_UCB1400_MODULE)
245 static pxa2xx_audio_ops_t colibri_pxa270_ac97_pdata = {
246 .reset_gpio = 95,
247 };
248
249 static struct ucb1400_pdata colibri_pxa270_ucb1400_pdata = {
250 .irq = PXA_GPIO_TO_IRQ(GPIO113_COLIBRI_PXA270_TS_IRQ),
251 };
252
253 static struct platform_device colibri_pxa270_ucb1400_device = {
254 .name = "ucb1400_core",
255 .id = -1,
256 .dev = {
257 .platform_data = &colibri_pxa270_ucb1400_pdata,
258 },
259 };
260
colibri_pxa270_tsc_init(void)261 static void __init colibri_pxa270_tsc_init(void)
262 {
263 pxa_set_ac97_info(&colibri_pxa270_ac97_pdata);
264 platform_device_register(&colibri_pxa270_ucb1400_device);
265 }
266 #else
colibri_pxa270_tsc_init(void)267 static inline void colibri_pxa270_tsc_init(void) {}
268 #endif
269
270 static int colibri_pxa270_baseboard;
271 core_param(colibri_pxa270_baseboard, colibri_pxa270_baseboard, int, 0444);
272
colibri_pxa270_init(void)273 static void __init colibri_pxa270_init(void)
274 {
275 pxa2xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa270_pin_config));
276
277 colibri_pxa270_nor_init();
278 colibri_pxa270_eth_init();
279 colibri_pxa270_tsc_init();
280
281 switch (colibri_pxa270_baseboard) {
282 case COLIBRI_EVALBOARD:
283 pxa2xx_mfp_config(ARRAY_AND_SIZE(
284 colibri_pxa270_evalboard_pin_config));
285 colibri_evalboard_init();
286 break;
287 case COLIBRI_PXA270_INCOME:
288 pxa2xx_mfp_config(ARRAY_AND_SIZE(income_pin_config));
289 colibri_pxa270_income_boardinit();
290 break;
291 default:
292 printk(KERN_ERR "Illegal colibri_pxa270_baseboard type %d\n",
293 colibri_pxa270_baseboard);
294 }
295
296 regulator_has_full_constraints();
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 .nr_irqs = PXA_NR_IRQS,
314 .init_irq = pxa27x_init_irq,
315 .handle_irq = pxa27x_handle_irq,
316 .init_time = pxa_timer_init,
317 .restart = pxa_restart,
318 MACHINE_END
319
320 MACHINE_START(INCOME, "Income s.r.o. SH-Dmaster PXA270 SBC")
321 .atag_offset = 0x100,
322 .init_machine = colibri_pxa270_income_init,
323 .map_io = pxa27x_map_io,
324 .nr_irqs = PXA_NR_IRQS,
325 .init_irq = pxa27x_init_irq,
326 .handle_irq = pxa27x_handle_irq,
327 .init_time = pxa_timer_init,
328 .restart = pxa_restart,
329 MACHINE_END
330
331