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-rw-r--r--arch/arm/mach-shmobile/board-g4evm.c415
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diff --git a/arch/arm/mach-shmobile/board-g4evm.c b/arch/arm/mach-shmobile/board-g4evm.c
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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 <mach/sh7377.h>
37#include <mach/common.h>
38#include <asm/mach-types.h>
39#include <asm/mach/arch.h>
40#include <asm/mach/map.h>
41#include <asm/mach/time.h>
42
43/*
44 * SDHI
45 *
46 * SDHI0 : card detection is possible
47 * SDHI1 : card detection is impossible
48 *
49 * [G4-MAIN-BOARD]
50 * JP74 : short # DBG_2V8A for SDHI0
51 * JP75 : NC # DBG_3V3A for SDHI0
52 * JP76 : NC # DBG_3V3A_SD for SDHI0
53 * JP77 : NC # 3V3A_SDIO for SDHI1
54 * JP78 : short # DBG_2V8A for SDHI1
55 * JP79 : NC # DBG_3V3A for SDHI1
56 * JP80 : NC # DBG_3V3A_SD for SDHI1
57 *
58 * [G4-CORE-BOARD]
59 * S32 : all off # to dissever from G3-CORE_DBG board
60 * S33 : all off # to dissever from G3-CORE_DBG board
61 *
62 * [G3-CORE_DBG-BOARD]
63 * S1 : all off # to dissever from G3-CORE_DBG board
64 * S3 : all off # to dissever from G3-CORE_DBG board
65 * S4 : all off # to dissever from G3-CORE_DBG board
66 */
67
68static struct mtd_partition nor_flash_partitions[] = {
69 {
70 .name = "loader",
71 .offset = 0x00000000,
72 .size = 512 * 1024,
73 },
74 {
75 .name = "bootenv",
76 .offset = MTDPART_OFS_APPEND,
77 .size = 512 * 1024,
78 },
79 {
80 .name = "kernel_ro",
81 .offset = MTDPART_OFS_APPEND,
82 .size = 8 * 1024 * 1024,
83 .mask_flags = MTD_WRITEABLE,
84 },
85 {
86 .name = "kernel",
87 .offset = MTDPART_OFS_APPEND,
88 .size = 8 * 1024 * 1024,
89 },
90 {
91 .name = "data",
92 .offset = MTDPART_OFS_APPEND,
93 .size = MTDPART_SIZ_FULL,
94 },
95};
96
97static struct physmap_flash_data nor_flash_data = {
98 .width = 2,
99 .parts = nor_flash_partitions,
100 .nr_parts = ARRAY_SIZE(nor_flash_partitions),
101};
102
103static struct resource nor_flash_resources[] = {
104 [0] = {
105 .start = 0x00000000,
106 .end = 0x08000000 - 1,
107 .flags = IORESOURCE_MEM,
108 }
109};
110
111static struct platform_device nor_flash_device = {
112 .name = "physmap-flash",
113 .dev = {
114 .platform_data = &nor_flash_data,
115 },
116 .num_resources = ARRAY_SIZE(nor_flash_resources),
117 .resource = nor_flash_resources,
118};
119
120/* USBHS */
121static void usb_host_port_power(int port, int power)
122{
123 if (!power) /* only power-on supported for now */
124 return;
125
126 /* set VBOUT/PWEN and EXTLP0 in DVSTCTR */
127 __raw_writew(__raw_readw(0xe6890008) | 0x600, 0xe6890008);
128}
129
130static struct r8a66597_platdata usb_host_data = {
131 .on_chip = 1,
132 .port_power = usb_host_port_power,
133};
134
135static struct resource usb_host_resources[] = {
136 [0] = {
137 .name = "USBHS",
138 .start = 0xe6890000,
139 .end = 0xe68900e5,
140 .flags = IORESOURCE_MEM,
141 },
142 [1] = {
143 .start = evt2irq(0x0a20), /* USBHS_USHI0 */
144 .flags = IORESOURCE_IRQ,
145 },
146};
147
148static struct platform_device usb_host_device = {
149 .name = "r8a66597_hcd",
150 .id = 0,
151 .dev = {
152 .platform_data = &usb_host_data,
153 .dma_mask = NULL,
154 .coherent_dma_mask = 0xffffffff,
155 },
156 .num_resources = ARRAY_SIZE(usb_host_resources),
157 .resource = usb_host_resources,
158};
159
160/* KEYSC */
161static struct sh_keysc_info keysc_info = {
162 .mode = SH_KEYSC_MODE_5,
163 .scan_timing = 3,
164 .delay = 100,
165 .keycodes = {
166 KEY_A, KEY_B, KEY_C, KEY_D, KEY_E, KEY_F,
167 KEY_G, KEY_H, KEY_I, KEY_J, KEY_K, KEY_L,
168 KEY_M, KEY_N, KEY_U, KEY_P, KEY_Q, KEY_R,
169 KEY_S, KEY_T, KEY_U, KEY_V, KEY_W, KEY_X,
170 KEY_Y, KEY_Z, KEY_HOME, KEY_SLEEP, KEY_WAKEUP, KEY_COFFEE,
171 KEY_0, KEY_1, KEY_2, KEY_3, KEY_4, KEY_5,
172 KEY_6, KEY_7, KEY_8, KEY_9, KEY_STOP, KEY_COMPUTER,
173 },
174};
175
176static struct resource keysc_resources[] = {
177 [0] = {
178 .name = "KEYSC",
179 .start = 0xe61b0000,
180 .end = 0xe61b000f,
181 .flags = IORESOURCE_MEM,
182 },
183 [1] = {
184 .start = evt2irq(0x0be0), /* KEYSC_KEY */
185 .flags = IORESOURCE_IRQ,
186 },
187};
188
189static struct platform_device keysc_device = {
190 .name = "sh_keysc",
191 .id = 0, /* keysc0 clock */
192 .num_resources = ARRAY_SIZE(keysc_resources),
193 .resource = keysc_resources,
194 .dev = {
195 .platform_data = &keysc_info,
196 },
197};
198
199/* SDHI */
200static struct sh_mobile_sdhi_info sdhi0_info = {
201 .tmio_caps = MMC_CAP_SDIO_IRQ,
202};
203
204static struct resource sdhi0_resources[] = {
205 [0] = {
206 .name = "SDHI0",
207 .start = 0xe6d50000,
208 .end = 0xe6d500ff,
209 .flags = IORESOURCE_MEM,
210 },
211 [1] = {
212 .start = evt2irq(0x0e00), /* SDHI0 */
213 .flags = IORESOURCE_IRQ,
214 },
215};
216
217static struct platform_device sdhi0_device = {
218 .name = "sh_mobile_sdhi",
219 .num_resources = ARRAY_SIZE(sdhi0_resources),
220 .resource = sdhi0_resources,
221 .id = 0,
222 .dev = {
223 .platform_data = &sdhi0_info,
224 },
225};
226
227static struct sh_mobile_sdhi_info sdhi1_info = {
228 .tmio_caps = MMC_CAP_NONREMOVABLE | MMC_CAP_SDIO_IRQ,
229};
230
231static struct resource sdhi1_resources[] = {
232 [0] = {
233 .name = "SDHI1",
234 .start = 0xe6d60000,
235 .end = 0xe6d600ff,
236 .flags = IORESOURCE_MEM,
237 },
238 [1] = {
239 .start = evt2irq(0x0e80), /* SDHI1 */
240 .flags = IORESOURCE_IRQ,
241 },
242};
243
244static struct platform_device sdhi1_device = {
245 .name = "sh_mobile_sdhi",
246 .num_resources = ARRAY_SIZE(sdhi1_resources),
247 .resource = sdhi1_resources,
248 .id = 1,
249 .dev = {
250 .platform_data = &sdhi1_info,
251 },
252};
253
254static struct platform_device *g4evm_devices[] __initdata = {
255 &nor_flash_device,
256 &usb_host_device,
257 &keysc_device,
258 &sdhi0_device,
259 &sdhi1_device,
260};
261
262static struct map_desc g4evm_io_desc[] __initdata = {
263 /* create a 1:1 entity map for 0xe6xxxxxx
264 * used by CPGA, INTC and PFC.
265 */
266 {
267 .virtual = 0xe6000000,
268 .pfn = __phys_to_pfn(0xe6000000),
269 .length = 256 << 20,
270 .type = MT_DEVICE_NONSHARED
271 },
272};
273
274static void __init g4evm_map_io(void)
275{
276 iotable_init(g4evm_io_desc, ARRAY_SIZE(g4evm_io_desc));
277
278 /* setup early devices and console here as well */
279 sh7377_add_early_devices();
280 shmobile_setup_console();
281}
282
283#define GPIO_SDHID0_D0 0xe60520fc
284#define GPIO_SDHID0_D1 0xe60520fd
285#define GPIO_SDHID0_D2 0xe60520fe
286#define GPIO_SDHID0_D3 0xe60520ff
287#define GPIO_SDHICMD0 0xe6052100
288
289#define GPIO_SDHID1_D0 0xe6052103
290#define GPIO_SDHID1_D1 0xe6052104
291#define GPIO_SDHID1_D2 0xe6052105
292#define GPIO_SDHID1_D3 0xe6052106
293#define GPIO_SDHICMD1 0xe6052107
294
295/*
296 * FIXME !!
297 *
298 * gpio_pull_up is quick_hack.
299 *
300 * current gpio frame work doesn't have
301 * the method to control only pull up/down/free.
302 * this function should be replaced by correct gpio function
303 */
304static void __init gpio_pull_up(u32 addr)
305{
306 u8 data = __raw_readb(addr);
307
308 data &= 0x0F;
309 data |= 0xC0;
310 __raw_writeb(data, addr);
311}
312
313static void __init g4evm_init(void)
314{
315 sh7377_pinmux_init();
316
317 /* Lit DS14 LED */
318 gpio_request(GPIO_PORT109, NULL);
319 gpio_direction_output(GPIO_PORT109, 1);
320 gpio_export(GPIO_PORT109, 1);
321
322 /* Lit DS15 LED */
323 gpio_request(GPIO_PORT110, NULL);
324 gpio_direction_output(GPIO_PORT110, 1);
325 gpio_export(GPIO_PORT110, 1);
326
327 /* Lit DS16 LED */
328 gpio_request(GPIO_PORT112, NULL);
329 gpio_direction_output(GPIO_PORT112, 1);
330 gpio_export(GPIO_PORT112, 1);
331
332 /* Lit DS17 LED */
333 gpio_request(GPIO_PORT113, NULL);
334 gpio_direction_output(GPIO_PORT113, 1);
335 gpio_export(GPIO_PORT113, 1);
336
337 /* USBHS */
338 gpio_request(GPIO_FN_VBUS_0, NULL);
339 gpio_request(GPIO_FN_PWEN, NULL);
340 gpio_request(GPIO_FN_OVCN, NULL);
341 gpio_request(GPIO_FN_OVCN2, NULL);
342 gpio_request(GPIO_FN_EXTLP, NULL);
343 gpio_request(GPIO_FN_IDIN, NULL);
344
345 /* setup USB phy */
346 __raw_writew(0x0200, 0xe605810a); /* USBCR1 */
347 __raw_writew(0x00e0, 0xe60581c0); /* CPFCH */
348 __raw_writew(0x6010, 0xe60581c6); /* CGPOSR */
349 __raw_writew(0x8a0a, 0xe605810c); /* USBCR2 */
350
351 /* KEYSC @ CN31 */
352 gpio_request(GPIO_FN_PORT60_KEYOUT5, NULL);
353 gpio_request(GPIO_FN_PORT61_KEYOUT4, NULL);
354 gpio_request(GPIO_FN_PORT62_KEYOUT3, NULL);
355 gpio_request(GPIO_FN_PORT63_KEYOUT2, NULL);
356 gpio_request(GPIO_FN_PORT64_KEYOUT1, NULL);
357 gpio_request(GPIO_FN_PORT65_KEYOUT0, NULL);
358 gpio_request(GPIO_FN_PORT66_KEYIN0_PU, NULL);
359 gpio_request(GPIO_FN_PORT67_KEYIN1_PU, NULL);
360 gpio_request(GPIO_FN_PORT68_KEYIN2_PU, NULL);
361 gpio_request(GPIO_FN_PORT69_KEYIN3_PU, NULL);
362 gpio_request(GPIO_FN_PORT70_KEYIN4_PU, NULL);
363 gpio_request(GPIO_FN_PORT71_KEYIN5_PU, NULL);
364 gpio_request(GPIO_FN_PORT72_KEYIN6_PU, NULL);
365
366 /* SDHI0 */
367 gpio_request(GPIO_FN_SDHICLK0, NULL);
368 gpio_request(GPIO_FN_SDHICD0, NULL);
369 gpio_request(GPIO_FN_SDHID0_0, NULL);
370 gpio_request(GPIO_FN_SDHID0_1, NULL);
371 gpio_request(GPIO_FN_SDHID0_2, NULL);
372 gpio_request(GPIO_FN_SDHID0_3, NULL);
373 gpio_request(GPIO_FN_SDHICMD0, NULL);
374 gpio_request(GPIO_FN_SDHIWP0, NULL);
375 gpio_pull_up(GPIO_SDHID0_D0);
376 gpio_pull_up(GPIO_SDHID0_D1);
377 gpio_pull_up(GPIO_SDHID0_D2);
378 gpio_pull_up(GPIO_SDHID0_D3);
379 gpio_pull_up(GPIO_SDHICMD0);
380
381 /* SDHI1 */
382 gpio_request(GPIO_FN_SDHICLK1, NULL);
383 gpio_request(GPIO_FN_SDHID1_0, NULL);
384 gpio_request(GPIO_FN_SDHID1_1, NULL);
385 gpio_request(GPIO_FN_SDHID1_2, NULL);
386 gpio_request(GPIO_FN_SDHID1_3, NULL);
387 gpio_request(GPIO_FN_SDHICMD1, NULL);
388 gpio_pull_up(GPIO_SDHID1_D0);
389 gpio_pull_up(GPIO_SDHID1_D1);
390 gpio_pull_up(GPIO_SDHID1_D2);
391 gpio_pull_up(GPIO_SDHID1_D3);
392 gpio_pull_up(GPIO_SDHICMD1);
393
394 sh7377_add_standard_devices();
395
396 platform_add_devices(g4evm_devices, ARRAY_SIZE(g4evm_devices));
397}
398
399static void __init g4evm_timer_init(void)
400{
401 sh7377_clock_init();
402 shmobile_timer.init();
403}
404
405static struct sys_timer g4evm_timer = {
406 .init = g4evm_timer_init,
407};
408
409MACHINE_START(G4EVM, "g4evm")
410 .map_io = g4evm_map_io,
411 .init_irq = sh7377_init_irq,
412 .handle_irq = shmobile_handle_irq_intc,
413 .init_machine = g4evm_init,
414 .timer = &g4evm_timer,
415MACHINE_END
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