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Magnus Dammf2aaf662010-02-05 11:15:07 +00001/*
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>
NISHIMOTO Hirokiaa18ef62010-02-12 08:11:18 +000029#include <linux/usb/r8a66597.h>
Magnus Dammf2aaf662010-02-05 11:15:07 +000030#include <linux/io.h>
NISHIMOTO Hiroki6676a1702010-02-23 10:55:10 +000031#include <linux/input.h>
32#include <linux/input/sh_keysc.h>
Kuninori Morimoto819ee862010-03-29 06:31:36 +000033#include <linux/mfd/sh_mobile_sdhi.h>
NISHIMOTO Hiroki276b4f62010-02-12 08:10:06 +000034#include <linux/gpio.h>
35#include <mach/sh7377.h>
Magnus Dammf2aaf662010-02-05 11:15:07 +000036#include <mach/common.h>
37#include <asm/mach-types.h>
38#include <asm/mach/arch.h>
39#include <asm/mach/map.h>
Magnus Damm0163acf2010-05-21 05:19:34 +000040#include <asm/mach/time.h>
Magnus Dammf2aaf662010-02-05 11:15:07 +000041
Kuninori Morimoto819ee862010-03-29 06:31:36 +000042/*
43 * SDHI
44 *
45 * SDHI0 : card detection is possible
46 * SDHI1 : card detection is impossible
47 *
48 * [G4-MAIN-BOARD]
49 * JP74 : short # DBG_2V8A for SDHI0
50 * JP75 : NC # DBG_3V3A for SDHI0
51 * JP76 : NC # DBG_3V3A_SD for SDHI0
52 * JP77 : NC # 3V3A_SDIO for SDHI1
53 * JP78 : short # DBG_2V8A for SDHI1
54 * JP79 : NC # DBG_3V3A for SDHI1
55 * JP80 : NC # DBG_3V3A_SD for SDHI1
56 *
57 * [G4-CORE-BOARD]
58 * S32 : all off # to dissever from G3-CORE_DBG board
59 * S33 : all off # to dissever from G3-CORE_DBG board
60 *
61 * [G3-CORE_DBG-BOARD]
62 * S1 : all off # to dissever from G3-CORE_DBG board
63 * S3 : all off # to dissever from G3-CORE_DBG board
64 * S4 : all off # to dissever from G3-CORE_DBG board
65 */
66
Magnus Dammf2aaf662010-02-05 11:15:07 +000067static struct mtd_partition nor_flash_partitions[] = {
68 {
69 .name = "loader",
70 .offset = 0x00000000,
71 .size = 512 * 1024,
72 },
73 {
74 .name = "bootenv",
75 .offset = MTDPART_OFS_APPEND,
76 .size = 512 * 1024,
77 },
78 {
79 .name = "kernel_ro",
80 .offset = MTDPART_OFS_APPEND,
81 .size = 8 * 1024 * 1024,
82 .mask_flags = MTD_WRITEABLE,
83 },
84 {
85 .name = "kernel",
86 .offset = MTDPART_OFS_APPEND,
87 .size = 8 * 1024 * 1024,
88 },
89 {
90 .name = "data",
91 .offset = MTDPART_OFS_APPEND,
92 .size = MTDPART_SIZ_FULL,
93 },
94};
95
96static struct physmap_flash_data nor_flash_data = {
97 .width = 2,
98 .parts = nor_flash_partitions,
99 .nr_parts = ARRAY_SIZE(nor_flash_partitions),
100};
101
102static struct resource nor_flash_resources[] = {
103 [0] = {
104 .start = 0x00000000,
105 .end = 0x08000000 - 1,
106 .flags = IORESOURCE_MEM,
107 }
108};
109
110static struct platform_device nor_flash_device = {
111 .name = "physmap-flash",
112 .dev = {
113 .platform_data = &nor_flash_data,
114 },
115 .num_resources = ARRAY_SIZE(nor_flash_resources),
116 .resource = nor_flash_resources,
117};
118
NISHIMOTO Hirokiaa18ef62010-02-12 08:11:18 +0000119/* USBHS */
120void usb_host_port_power(int port, int power)
121{
122 if (!power) /* only power-on supported for now */
123 return;
124
125 /* set VBOUT/PWEN and EXTLP0 in DVSTCTR */
126 __raw_writew(__raw_readw(0xe6890008) | 0x600, 0xe6890008);
127}
128
129static struct r8a66597_platdata usb_host_data = {
130 .on_chip = 1,
131 .port_power = usb_host_port_power,
132};
133
134static struct resource usb_host_resources[] = {
135 [0] = {
136 .name = "USBHS",
137 .start = 0xe6890000,
138 .end = 0xe68900e5,
139 .flags = IORESOURCE_MEM,
140 },
141 [1] = {
Magnus Damm043296d2010-05-20 14:39:21 +0000142 .start = evt2irq(0x0a20), /* USBHS_USHI0 */
NISHIMOTO Hirokiaa18ef62010-02-12 08:11:18 +0000143 .flags = IORESOURCE_IRQ,
144 },
145};
146
147static struct platform_device usb_host_device = {
148 .name = "r8a66597_hcd",
149 .id = 0,
150 .dev = {
151 .platform_data = &usb_host_data,
152 .dma_mask = NULL,
153 .coherent_dma_mask = 0xffffffff,
154 },
155 .num_resources = ARRAY_SIZE(usb_host_resources),
156 .resource = usb_host_resources,
157};
Magnus Dammf2aaf662010-02-05 11:15:07 +0000158
NISHIMOTO Hiroki6676a1702010-02-23 10:55:10 +0000159/* KEYSC */
160static struct sh_keysc_info keysc_info = {
161 .mode = SH_KEYSC_MODE_5,
162 .scan_timing = 3,
163 .delay = 100,
164 .keycodes = {
165 KEY_A, KEY_B, KEY_C, KEY_D, KEY_E, KEY_F,
166 KEY_G, KEY_H, KEY_I, KEY_J, KEY_K, KEY_L,
167 KEY_M, KEY_N, KEY_U, KEY_P, KEY_Q, KEY_R,
168 KEY_S, KEY_T, KEY_U, KEY_V, KEY_W, KEY_X,
169 KEY_Y, KEY_Z, KEY_HOME, KEY_SLEEP, KEY_WAKEUP, KEY_COFFEE,
170 KEY_0, KEY_1, KEY_2, KEY_3, KEY_4, KEY_5,
171 KEY_6, KEY_7, KEY_8, KEY_9, KEY_STOP, KEY_COMPUTER,
172 },
173};
174
175static struct resource keysc_resources[] = {
176 [0] = {
177 .name = "KEYSC",
178 .start = 0xe61b0000,
179 .end = 0xe61b000f,
180 .flags = IORESOURCE_MEM,
181 },
182 [1] = {
Magnus Damm043296d2010-05-20 14:39:21 +0000183 .start = evt2irq(0x0be0), /* KEYSC_KEY */
NISHIMOTO Hiroki6676a1702010-02-23 10:55:10 +0000184 .flags = IORESOURCE_IRQ,
185 },
186};
187
188static struct platform_device keysc_device = {
189 .name = "sh_keysc",
190 .id = 0, /* keysc0 clock */
191 .num_resources = ARRAY_SIZE(keysc_resources),
192 .resource = keysc_resources,
193 .dev = {
194 .platform_data = &keysc_info,
195 },
196};
197
Kuninori Morimoto819ee862010-03-29 06:31:36 +0000198/* SDHI */
199static struct resource sdhi0_resources[] = {
200 [0] = {
201 .name = "SDHI0",
202 .start = 0xe6d50000,
203 .end = 0xe6d501ff,
204 .flags = IORESOURCE_MEM,
205 },
206 [1] = {
Magnus Damm043296d2010-05-20 14:39:21 +0000207 .start = evt2irq(0x0e00), /* SDHI0 */
Kuninori Morimoto819ee862010-03-29 06:31:36 +0000208 .flags = IORESOURCE_IRQ,
209 },
210};
211
212static struct platform_device sdhi0_device = {
213 .name = "sh_mobile_sdhi",
214 .num_resources = ARRAY_SIZE(sdhi0_resources),
215 .resource = sdhi0_resources,
216 .id = 0,
217};
218
219static struct resource sdhi1_resources[] = {
220 [0] = {
221 .name = "SDHI1",
222 .start = 0xe6d60000,
223 .end = 0xe6d601ff,
224 .flags = IORESOURCE_MEM,
225 },
226 [1] = {
Magnus Damm043296d2010-05-20 14:39:21 +0000227 .start = evt2irq(0x0e80), /* SDHI1 */
Kuninori Morimoto819ee862010-03-29 06:31:36 +0000228 .flags = IORESOURCE_IRQ,
229 },
230};
231
232static struct platform_device sdhi1_device = {
233 .name = "sh_mobile_sdhi",
234 .num_resources = ARRAY_SIZE(sdhi1_resources),
235 .resource = sdhi1_resources,
236 .id = 1,
237};
238
Magnus Dammf2aaf662010-02-05 11:15:07 +0000239static struct platform_device *g4evm_devices[] __initdata = {
240 &nor_flash_device,
NISHIMOTO Hirokiaa18ef62010-02-12 08:11:18 +0000241 &usb_host_device,
NISHIMOTO Hiroki6676a1702010-02-23 10:55:10 +0000242 &keysc_device,
Kuninori Morimoto819ee862010-03-29 06:31:36 +0000243 &sdhi0_device,
244 &sdhi1_device,
Magnus Dammf2aaf662010-02-05 11:15:07 +0000245};
246
247static struct map_desc g4evm_io_desc[] __initdata = {
248 /* create a 1:1 entity map for 0xe6xxxxxx
249 * used by CPGA, INTC and PFC.
250 */
251 {
252 .virtual = 0xe6000000,
253 .pfn = __phys_to_pfn(0xe6000000),
254 .length = 256 << 20,
255 .type = MT_DEVICE_NONSHARED
256 },
257};
258
259static void __init g4evm_map_io(void)
260{
261 iotable_init(g4evm_io_desc, ARRAY_SIZE(g4evm_io_desc));
262
Magnus Damm0163acf2010-05-21 05:19:34 +0000263 /* setup early devices and console here as well */
Magnus Dammf2aaf662010-02-05 11:15:07 +0000264 sh7377_add_early_devices();
Magnus Damm4ae04ac2010-02-08 11:02:54 +0000265 shmobile_setup_console();
Magnus Dammf2aaf662010-02-05 11:15:07 +0000266}
267
Kuninori Morimoto819ee862010-03-29 06:31:36 +0000268#define GPIO_SDHID0_D0 0xe60520fc
269#define GPIO_SDHID0_D1 0xe60520fd
270#define GPIO_SDHID0_D2 0xe60520fe
271#define GPIO_SDHID0_D3 0xe60520ff
272#define GPIO_SDHICMD0 0xe6052100
273
274#define GPIO_SDHID1_D0 0xe6052103
275#define GPIO_SDHID1_D1 0xe6052104
276#define GPIO_SDHID1_D2 0xe6052105
277#define GPIO_SDHID1_D3 0xe6052106
278#define GPIO_SDHICMD1 0xe6052107
279
280/*
281 * FIXME !!
282 *
283 * gpio_pull_up is quick_hack.
284 *
285 * current gpio frame work doesn't have
286 * the method to control only pull up/down/free.
287 * this function should be replaced by correct gpio function
288 */
289static void __init gpio_pull_up(u32 addr)
290{
291 u8 data = __raw_readb(addr);
292
293 data &= 0x0F;
294 data |= 0xC0;
295 __raw_writeb(data, addr);
296}
297
Magnus Dammf2aaf662010-02-05 11:15:07 +0000298static void __init g4evm_init(void)
299{
NISHIMOTO Hiroki276b4f62010-02-12 08:10:06 +0000300 sh7377_pinmux_init();
301
302 /* Lit DS14 LED */
303 gpio_request(GPIO_PORT109, NULL);
304 gpio_direction_output(GPIO_PORT109, 1);
305 gpio_export(GPIO_PORT109, 1);
306
307 /* Lit DS15 LED */
308 gpio_request(GPIO_PORT110, NULL);
309 gpio_direction_output(GPIO_PORT110, 1);
310 gpio_export(GPIO_PORT110, 1);
311
312 /* Lit DS16 LED */
313 gpio_request(GPIO_PORT112, NULL);
314 gpio_direction_output(GPIO_PORT112, 1);
315 gpio_export(GPIO_PORT112, 1);
316
317 /* Lit DS17 LED */
318 gpio_request(GPIO_PORT113, NULL);
319 gpio_direction_output(GPIO_PORT113, 1);
320 gpio_export(GPIO_PORT113, 1);
321
NISHIMOTO Hirokiaa18ef62010-02-12 08:11:18 +0000322 /* USBHS */
323 gpio_request(GPIO_FN_VBUS_0, NULL);
324 gpio_request(GPIO_FN_PWEN, NULL);
325 gpio_request(GPIO_FN_OVCN, NULL);
326 gpio_request(GPIO_FN_OVCN2, NULL);
327 gpio_request(GPIO_FN_EXTLP, NULL);
328 gpio_request(GPIO_FN_IDIN, NULL);
329
NISHIMOTO Hirokiaa18ef62010-02-12 08:11:18 +0000330 /* setup USB phy */
331 __raw_writew(0x0200, 0xe605810a); /* USBCR1 */
332 __raw_writew(0x00e0, 0xe60581c0); /* CPFCH */
333 __raw_writew(0x6010, 0xe60581c6); /* CGPOSR */
334 __raw_writew(0x8a0a, 0xe605810c); /* USBCR2 */
335
NISHIMOTO Hiroki6676a1702010-02-23 10:55:10 +0000336 /* KEYSC @ CN31 */
337 gpio_request(GPIO_FN_PORT60_KEYOUT5, NULL);
338 gpio_request(GPIO_FN_PORT61_KEYOUT4, NULL);
339 gpio_request(GPIO_FN_PORT62_KEYOUT3, NULL);
340 gpio_request(GPIO_FN_PORT63_KEYOUT2, NULL);
341 gpio_request(GPIO_FN_PORT64_KEYOUT1, NULL);
342 gpio_request(GPIO_FN_PORT65_KEYOUT0, NULL);
343 gpio_request(GPIO_FN_PORT66_KEYIN0_PU, NULL);
344 gpio_request(GPIO_FN_PORT67_KEYIN1_PU, NULL);
345 gpio_request(GPIO_FN_PORT68_KEYIN2_PU, NULL);
346 gpio_request(GPIO_FN_PORT69_KEYIN3_PU, NULL);
347 gpio_request(GPIO_FN_PORT70_KEYIN4_PU, NULL);
348 gpio_request(GPIO_FN_PORT71_KEYIN5_PU, NULL);
349 gpio_request(GPIO_FN_PORT72_KEYIN6_PU, NULL);
350
Kuninori Morimoto819ee862010-03-29 06:31:36 +0000351 /* SDHI0 */
352 gpio_request(GPIO_FN_SDHICLK0, NULL);
353 gpio_request(GPIO_FN_SDHICD0, NULL);
354 gpio_request(GPIO_FN_SDHID0_0, NULL);
355 gpio_request(GPIO_FN_SDHID0_1, NULL);
356 gpio_request(GPIO_FN_SDHID0_2, NULL);
357 gpio_request(GPIO_FN_SDHID0_3, NULL);
358 gpio_request(GPIO_FN_SDHICMD0, NULL);
359 gpio_request(GPIO_FN_SDHIWP0, NULL);
360 gpio_pull_up(GPIO_SDHID0_D0);
361 gpio_pull_up(GPIO_SDHID0_D1);
362 gpio_pull_up(GPIO_SDHID0_D2);
363 gpio_pull_up(GPIO_SDHID0_D3);
364 gpio_pull_up(GPIO_SDHICMD0);
365
366 /* SDHI1 */
367 gpio_request(GPIO_FN_SDHICLK1, NULL);
368 gpio_request(GPIO_FN_SDHID1_0, NULL);
369 gpio_request(GPIO_FN_SDHID1_1, NULL);
370 gpio_request(GPIO_FN_SDHID1_2, NULL);
371 gpio_request(GPIO_FN_SDHID1_3, NULL);
372 gpio_request(GPIO_FN_SDHICMD1, NULL);
373 gpio_pull_up(GPIO_SDHID1_D0);
374 gpio_pull_up(GPIO_SDHID1_D1);
375 gpio_pull_up(GPIO_SDHID1_D2);
376 gpio_pull_up(GPIO_SDHID1_D3);
377 gpio_pull_up(GPIO_SDHICMD1);
378
Magnus Dammf2aaf662010-02-05 11:15:07 +0000379 sh7377_add_standard_devices();
380
381 platform_add_devices(g4evm_devices, ARRAY_SIZE(g4evm_devices));
382}
383
Magnus Damm0163acf2010-05-21 05:19:34 +0000384static void __init g4evm_timer_init(void)
385{
386 sh7377_clock_init();
387 shmobile_timer.init();
388}
389
390static struct sys_timer g4evm_timer = {
391 .init = g4evm_timer_init,
392};
393
Magnus Dammf2aaf662010-02-05 11:15:07 +0000394MACHINE_START(G4EVM, "g4evm")
395 .phys_io = 0xe6000000,
396 .io_pg_offst = ((0xe6000000) >> 18) & 0xfffc,
397 .map_io = g4evm_map_io,
398 .init_irq = sh7377_init_irq,
399 .init_machine = g4evm_init,
Magnus Damm0163acf2010-05-21 05:19:34 +0000400 .timer = &g4evm_timer,
Magnus Dammf2aaf662010-02-05 11:15:07 +0000401MACHINE_END