1 /*
2 * G4EVM board support
3 *
4 * Copyright (C) 2010 Magnus Damm
5 * Copyright (C) 2008 Yoshihiro Shimoda
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; version 2 of the License.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20 #include <linux/kernel.h>
21 #include <linux/init.h>
22 #include <linux/interrupt.h>
23 #include <linux/irq.h>
24 #include <linux/platform_device.h>
25 #include <linux/delay.h>
26 #include <linux/mtd/mtd.h>
27 #include <linux/mtd/partitions.h>
28 #include <linux/mtd/physmap.h>
29 #include <linux/usb/r8a66597.h>
30 #include <linux/io.h>
31 #include <linux/input.h>
32 #include <linux/input/sh_keysc.h>
33 #include <linux/mmc/host.h>
34 #include <linux/mmc/sh_mobile_sdhi.h>
35 #include <linux/gpio.h>
36 #include <linux/dma-mapping.h>
37 #include <mach/sh7377.h>
38 #include <mach/common.h>
39 #include <asm/mach-types.h>
40 #include <asm/mach/arch.h>
41 #include <asm/mach/map.h>
42 #include <asm/mach/time.h>
43
44 /*
45 * SDHI
46 *
47 * SDHI0 : card detection is possible
48 * SDHI1 : card detection is impossible
49 *
50 * [G4-MAIN-BOARD]
51 * JP74 : short # DBG_2V8A for SDHI0
52 * JP75 : NC # DBG_3V3A for SDHI0
53 * JP76 : NC # DBG_3V3A_SD for SDHI0
54 * JP77 : NC # 3V3A_SDIO for SDHI1
55 * JP78 : short # DBG_2V8A for SDHI1
56 * JP79 : NC # DBG_3V3A for SDHI1
57 * JP80 : NC # DBG_3V3A_SD for SDHI1
58 *
59 * [G4-CORE-BOARD]
60 * S32 : all off # to dissever from G3-CORE_DBG board
61 * S33 : all off # to dissever from G3-CORE_DBG board
62 *
63 * [G3-CORE_DBG-BOARD]
64 * S1 : all off # to dissever from G3-CORE_DBG board
65 * S3 : all off # to dissever from G3-CORE_DBG board
66 * S4 : all off # to dissever from G3-CORE_DBG board
67 */
68
69 static struct mtd_partition nor_flash_partitions[] = {
70 {
71 .name = "loader",
72 .offset = 0x00000000,
73 .size = 512 * 1024,
74 },
75 {
76 .name = "bootenv",
77 .offset = MTDPART_OFS_APPEND,
78 .size = 512 * 1024,
79 },
80 {
81 .name = "kernel_ro",
82 .offset = MTDPART_OFS_APPEND,
83 .size = 8 * 1024 * 1024,
84 .mask_flags = MTD_WRITEABLE,
85 },
86 {
87 .name = "kernel",
88 .offset = MTDPART_OFS_APPEND,
89 .size = 8 * 1024 * 1024,
90 },
91 {
92 .name = "data",
93 .offset = MTDPART_OFS_APPEND,
94 .size = MTDPART_SIZ_FULL,
95 },
96 };
97
98 static struct physmap_flash_data nor_flash_data = {
99 .width = 2,
100 .parts = nor_flash_partitions,
101 .nr_parts = ARRAY_SIZE(nor_flash_partitions),
102 };
103
104 static struct resource nor_flash_resources[] = {
105 [0] = {
106 .start = 0x00000000,
107 .end = 0x08000000 - 1,
108 .flags = IORESOURCE_MEM,
109 }
110 };
111
112 static struct platform_device nor_flash_device = {
113 .name = "physmap-flash",
114 .dev = {
115 .platform_data = &nor_flash_data,
116 },
117 .num_resources = ARRAY_SIZE(nor_flash_resources),
118 .resource = nor_flash_resources,
119 };
120
121 /* USBHS */
usb_host_port_power(int port,int power)122 static void usb_host_port_power(int port, int power)
123 {
124 if (!power) /* only power-on supported for now */
125 return;
126
127 /* set VBOUT/PWEN and EXTLP0 in DVSTCTR */
128 __raw_writew(__raw_readw(0xe6890008) | 0x600, 0xe6890008);
129 }
130
131 static struct r8a66597_platdata usb_host_data = {
132 .on_chip = 1,
133 .port_power = usb_host_port_power,
134 };
135
136 static struct resource usb_host_resources[] = {
137 [0] = {
138 .name = "USBHS",
139 .start = 0xe6890000,
140 .end = 0xe68900e5,
141 .flags = IORESOURCE_MEM,
142 },
143 [1] = {
144 .start = evt2irq(0x0a20), /* USBHS_USHI0 */
145 .flags = IORESOURCE_IRQ,
146 },
147 };
148
149 static struct platform_device usb_host_device = {
150 .name = "r8a66597_hcd",
151 .id = 0,
152 .dev = {
153 .platform_data = &usb_host_data,
154 .dma_mask = NULL,
155 .coherent_dma_mask = 0xffffffff,
156 },
157 .num_resources = ARRAY_SIZE(usb_host_resources),
158 .resource = usb_host_resources,
159 };
160
161 /* KEYSC */
162 static struct sh_keysc_info keysc_info = {
163 .mode = SH_KEYSC_MODE_5,
164 .scan_timing = 3,
165 .delay = 100,
166 .keycodes = {
167 KEY_A, KEY_B, KEY_C, KEY_D, KEY_E, KEY_F,
168 KEY_G, KEY_H, KEY_I, KEY_J, KEY_K, KEY_L,
169 KEY_M, KEY_N, KEY_U, KEY_P, KEY_Q, KEY_R,
170 KEY_S, KEY_T, KEY_U, KEY_V, KEY_W, KEY_X,
171 KEY_Y, KEY_Z, KEY_HOME, KEY_SLEEP, KEY_WAKEUP, KEY_COFFEE,
172 KEY_0, KEY_1, KEY_2, KEY_3, KEY_4, KEY_5,
173 KEY_6, KEY_7, KEY_8, KEY_9, KEY_STOP, KEY_COMPUTER,
174 },
175 };
176
177 static struct resource keysc_resources[] = {
178 [0] = {
179 .name = "KEYSC",
180 .start = 0xe61b0000,
181 .end = 0xe61b000f,
182 .flags = IORESOURCE_MEM,
183 },
184 [1] = {
185 .start = evt2irq(0x0be0), /* KEYSC_KEY */
186 .flags = IORESOURCE_IRQ,
187 },
188 };
189
190 static struct platform_device keysc_device = {
191 .name = "sh_keysc",
192 .id = 0, /* keysc0 clock */
193 .num_resources = ARRAY_SIZE(keysc_resources),
194 .resource = keysc_resources,
195 .dev = {
196 .platform_data = &keysc_info,
197 },
198 };
199
200 /* SDHI */
201 static struct sh_mobile_sdhi_info sdhi0_info = {
202 .tmio_caps = MMC_CAP_SDIO_IRQ,
203 };
204
205 static struct resource sdhi0_resources[] = {
206 [0] = {
207 .name = "SDHI0",
208 .start = 0xe6d50000,
209 .end = 0xe6d500ff,
210 .flags = IORESOURCE_MEM,
211 },
212 [1] = {
213 .start = evt2irq(0x0e00), /* SDHI0 */
214 .flags = IORESOURCE_IRQ,
215 },
216 };
217
218 static struct platform_device sdhi0_device = {
219 .name = "sh_mobile_sdhi",
220 .num_resources = ARRAY_SIZE(sdhi0_resources),
221 .resource = sdhi0_resources,
222 .id = 0,
223 .dev = {
224 .platform_data = &sdhi0_info,
225 },
226 };
227
228 static struct sh_mobile_sdhi_info sdhi1_info = {
229 .tmio_caps = MMC_CAP_NONREMOVABLE | MMC_CAP_SDIO_IRQ,
230 };
231
232 static struct resource sdhi1_resources[] = {
233 [0] = {
234 .name = "SDHI1",
235 .start = 0xe6d60000,
236 .end = 0xe6d600ff,
237 .flags = IORESOURCE_MEM,
238 },
239 [1] = {
240 .start = evt2irq(0x0e80), /* SDHI1 */
241 .flags = IORESOURCE_IRQ,
242 },
243 };
244
245 static struct platform_device sdhi1_device = {
246 .name = "sh_mobile_sdhi",
247 .num_resources = ARRAY_SIZE(sdhi1_resources),
248 .resource = sdhi1_resources,
249 .id = 1,
250 .dev = {
251 .platform_data = &sdhi1_info,
252 },
253 };
254
255 static struct platform_device *g4evm_devices[] __initdata = {
256 &nor_flash_device,
257 &usb_host_device,
258 &keysc_device,
259 &sdhi0_device,
260 &sdhi1_device,
261 };
262
263 static struct map_desc g4evm_io_desc[] __initdata = {
264 /* create a 1:1 entity map for 0xe6xxxxxx
265 * used by CPGA, INTC and PFC.
266 */
267 {
268 .virtual = 0xe6000000,
269 .pfn = __phys_to_pfn(0xe6000000),
270 .length = 256 << 20,
271 .type = MT_DEVICE_NONSHARED
272 },
273 };
274
g4evm_map_io(void)275 static void __init g4evm_map_io(void)
276 {
277 iotable_init(g4evm_io_desc, ARRAY_SIZE(g4evm_io_desc));
278
279 /* setup early devices and console here as well */
280 sh7377_add_early_devices();
281 shmobile_setup_console();
282 }
283
284 #define GPIO_SDHID0_D0 0xe60520fc
285 #define GPIO_SDHID0_D1 0xe60520fd
286 #define GPIO_SDHID0_D2 0xe60520fe
287 #define GPIO_SDHID0_D3 0xe60520ff
288 #define GPIO_SDHICMD0 0xe6052100
289
290 #define GPIO_SDHID1_D0 0xe6052103
291 #define GPIO_SDHID1_D1 0xe6052104
292 #define GPIO_SDHID1_D2 0xe6052105
293 #define GPIO_SDHID1_D3 0xe6052106
294 #define GPIO_SDHICMD1 0xe6052107
295
296 /*
297 * FIXME !!
298 *
299 * gpio_pull_up is quick_hack.
300 *
301 * current gpio frame work doesn't have
302 * the method to control only pull up/down/free.
303 * this function should be replaced by correct gpio function
304 */
gpio_pull_up(u32 addr)305 static void __init gpio_pull_up(u32 addr)
306 {
307 u8 data = __raw_readb(addr);
308
309 data &= 0x0F;
310 data |= 0xC0;
311 __raw_writeb(data, addr);
312 }
313
g4evm_init(void)314 static void __init g4evm_init(void)
315 {
316 sh7377_pinmux_init();
317
318 /* Lit DS14 LED */
319 gpio_request(GPIO_PORT109, NULL);
320 gpio_direction_output(GPIO_PORT109, 1);
321 gpio_export(GPIO_PORT109, 1);
322
323 /* Lit DS15 LED */
324 gpio_request(GPIO_PORT110, NULL);
325 gpio_direction_output(GPIO_PORT110, 1);
326 gpio_export(GPIO_PORT110, 1);
327
328 /* Lit DS16 LED */
329 gpio_request(GPIO_PORT112, NULL);
330 gpio_direction_output(GPIO_PORT112, 1);
331 gpio_export(GPIO_PORT112, 1);
332
333 /* Lit DS17 LED */
334 gpio_request(GPIO_PORT113, NULL);
335 gpio_direction_output(GPIO_PORT113, 1);
336 gpio_export(GPIO_PORT113, 1);
337
338 /* USBHS */
339 gpio_request(GPIO_FN_VBUS_0, NULL);
340 gpio_request(GPIO_FN_PWEN, NULL);
341 gpio_request(GPIO_FN_OVCN, NULL);
342 gpio_request(GPIO_FN_OVCN2, NULL);
343 gpio_request(GPIO_FN_EXTLP, NULL);
344 gpio_request(GPIO_FN_IDIN, NULL);
345
346 /* setup USB phy */
347 __raw_writew(0x0200, 0xe605810a); /* USBCR1 */
348 __raw_writew(0x00e0, 0xe60581c0); /* CPFCH */
349 __raw_writew(0x6010, 0xe60581c6); /* CGPOSR */
350 __raw_writew(0x8a0a, 0xe605810c); /* USBCR2 */
351
352 /* KEYSC @ CN31 */
353 gpio_request(GPIO_FN_PORT60_KEYOUT5, NULL);
354 gpio_request(GPIO_FN_PORT61_KEYOUT4, NULL);
355 gpio_request(GPIO_FN_PORT62_KEYOUT3, NULL);
356 gpio_request(GPIO_FN_PORT63_KEYOUT2, NULL);
357 gpio_request(GPIO_FN_PORT64_KEYOUT1, NULL);
358 gpio_request(GPIO_FN_PORT65_KEYOUT0, NULL);
359 gpio_request(GPIO_FN_PORT66_KEYIN0_PU, NULL);
360 gpio_request(GPIO_FN_PORT67_KEYIN1_PU, NULL);
361 gpio_request(GPIO_FN_PORT68_KEYIN2_PU, NULL);
362 gpio_request(GPIO_FN_PORT69_KEYIN3_PU, NULL);
363 gpio_request(GPIO_FN_PORT70_KEYIN4_PU, NULL);
364 gpio_request(GPIO_FN_PORT71_KEYIN5_PU, NULL);
365 gpio_request(GPIO_FN_PORT72_KEYIN6_PU, NULL);
366
367 /* SDHI0 */
368 gpio_request(GPIO_FN_SDHICLK0, NULL);
369 gpio_request(GPIO_FN_SDHICD0, NULL);
370 gpio_request(GPIO_FN_SDHID0_0, NULL);
371 gpio_request(GPIO_FN_SDHID0_1, NULL);
372 gpio_request(GPIO_FN_SDHID0_2, NULL);
373 gpio_request(GPIO_FN_SDHID0_3, NULL);
374 gpio_request(GPIO_FN_SDHICMD0, NULL);
375 gpio_request(GPIO_FN_SDHIWP0, NULL);
376 gpio_pull_up(GPIO_SDHID0_D0);
377 gpio_pull_up(GPIO_SDHID0_D1);
378 gpio_pull_up(GPIO_SDHID0_D2);
379 gpio_pull_up(GPIO_SDHID0_D3);
380 gpio_pull_up(GPIO_SDHICMD0);
381
382 /* SDHI1 */
383 gpio_request(GPIO_FN_SDHICLK1, NULL);
384 gpio_request(GPIO_FN_SDHID1_0, NULL);
385 gpio_request(GPIO_FN_SDHID1_1, NULL);
386 gpio_request(GPIO_FN_SDHID1_2, NULL);
387 gpio_request(GPIO_FN_SDHID1_3, NULL);
388 gpio_request(GPIO_FN_SDHICMD1, NULL);
389 gpio_pull_up(GPIO_SDHID1_D0);
390 gpio_pull_up(GPIO_SDHID1_D1);
391 gpio_pull_up(GPIO_SDHID1_D2);
392 gpio_pull_up(GPIO_SDHID1_D3);
393 gpio_pull_up(GPIO_SDHICMD1);
394
395 sh7377_add_standard_devices();
396
397 platform_add_devices(g4evm_devices, ARRAY_SIZE(g4evm_devices));
398 }
399
g4evm_timer_init(void)400 static void __init g4evm_timer_init(void)
401 {
402 sh7377_clock_init();
403 shmobile_timer.init();
404 }
405
406 static struct sys_timer g4evm_timer = {
407 .init = g4evm_timer_init,
408 };
409
410 MACHINE_START(G4EVM, "g4evm")
411 .map_io = g4evm_map_io,
412 .init_irq = sh7377_init_irq,
413 .handle_irq = shmobile_handle_irq_intc,
414 .init_machine = g4evm_init,
415 .timer = &g4evm_timer,
416 MACHINE_END
417