Merge branch 'for-linus' of git://git.infradead.org/ubi-2.6
[deliverable/linux.git] / arch / arm / mach-omap2 / board-cm-t3517.c
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1/*
2 * linux/arch/arm/mach-omap2/board-cm-t3517.c
3 *
4 * Support for the CompuLab CM-T3517 modules
5 *
6 * Copyright (C) 2010 CompuLab, Ltd.
7 * Author: Igor Grinberg <grinberg@compulab.co.il>
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * version 2 as published by the Free Software Foundation.
12 *
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
21 * 02110-1301 USA
22 *
23 */
24
25#include <linux/kernel.h>
26#include <linux/init.h>
27#include <linux/platform_device.h>
525d75b3 28#include <linux/delay.h>
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29#include <linux/gpio.h>
30#include <linux/leds.h>
46893a56 31#include <linux/rtc-v3020.h>
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32#include <linux/mtd/mtd.h>
33#include <linux/mtd/nand.h>
34#include <linux/mtd/partitions.h>
b6a26b4b 35#include <linux/can/platform/ti_hecc.h>
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36
37#include <asm/mach-types.h>
38#include <asm/mach/arch.h>
39#include <asm/mach/map.h>
40
41#include <plat/board.h>
42#include <plat/common.h>
525d75b3 43#include <plat/usb.h>
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44#include <plat/nand.h>
45#include <plat/gpmc.h>
d04b620e 46
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47#include <mach/am35xx.h>
48
d04b620e 49#include "mux.h"
4814ced5 50#include "control.h"
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51
52#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
53static struct gpio_led cm_t3517_leds[] = {
54 [0] = {
55 .gpio = 186,
56 .name = "cm-t3517:green",
57 .default_trigger = "heartbeat",
58 .active_low = 0,
59 },
60};
61
62static struct gpio_led_platform_data cm_t3517_led_pdata = {
63 .num_leds = ARRAY_SIZE(cm_t3517_leds),
64 .leds = cm_t3517_leds,
65};
66
67static struct platform_device cm_t3517_led_device = {
68 .name = "leds-gpio",
69 .id = -1,
70 .dev = {
71 .platform_data = &cm_t3517_led_pdata,
72 },
73};
74
75static void __init cm_t3517_init_leds(void)
76{
77 platform_device_register(&cm_t3517_led_device);
78}
79#else
80static inline void cm_t3517_init_leds(void) {}
81#endif
82
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83#if defined(CONFIG_CAN_TI_HECC) || defined(CONFIG_CAN_TI_HECC_MODULE)
84static struct resource cm_t3517_hecc_resources[] = {
85 {
86 .start = AM35XX_IPSS_HECC_BASE,
87 .end = AM35XX_IPSS_HECC_BASE + SZ_16K - 1,
88 .flags = IORESOURCE_MEM,
89 },
90 {
91 .start = INT_35XX_HECC0_IRQ,
92 .end = INT_35XX_HECC0_IRQ,
93 .flags = IORESOURCE_IRQ,
94 },
95};
96
97static struct ti_hecc_platform_data cm_t3517_hecc_pdata = {
98 .scc_hecc_offset = AM35XX_HECC_SCC_HECC_OFFSET,
99 .scc_ram_offset = AM35XX_HECC_SCC_RAM_OFFSET,
100 .hecc_ram_offset = AM35XX_HECC_RAM_OFFSET,
101 .mbx_offset = AM35XX_HECC_MBOX_OFFSET,
102 .int_line = AM35XX_HECC_INT_LINE,
103 .version = AM35XX_HECC_VERSION,
104};
105
106static struct platform_device cm_t3517_hecc_device = {
107 .name = "ti_hecc",
108 .id = 1,
109 .num_resources = ARRAY_SIZE(cm_t3517_hecc_resources),
110 .resource = cm_t3517_hecc_resources,
111 .dev = {
112 .platform_data = &cm_t3517_hecc_pdata,
113 },
114};
115
116static void cm_t3517_init_hecc(void)
117{
118 platform_device_register(&cm_t3517_hecc_device);
119}
120#else
121static inline void cm_t3517_init_hecc(void) {}
122#endif
123
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124#if defined(CONFIG_RTC_DRV_V3020) || defined(CONFIG_RTC_DRV_V3020_MODULE)
125#define RTC_IO_GPIO (153)
126#define RTC_WR_GPIO (154)
fec5568c 127#define RTC_RD_GPIO (53)
46893a56 128#define RTC_CS_GPIO (163)
fec5568c 129#define RTC_CS_EN_GPIO (160)
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130
131struct v3020_platform_data cm_t3517_v3020_pdata = {
132 .use_gpio = 1,
133 .gpio_cs = RTC_CS_GPIO,
134 .gpio_wr = RTC_WR_GPIO,
135 .gpio_rd = RTC_RD_GPIO,
136 .gpio_io = RTC_IO_GPIO,
137};
138
139static struct platform_device cm_t3517_rtc_device = {
140 .name = "v3020",
141 .id = -1,
142 .dev = {
143 .platform_data = &cm_t3517_v3020_pdata,
144 }
145};
146
147static void __init cm_t3517_init_rtc(void)
148{
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149 int err;
150
151 err = gpio_request(RTC_CS_EN_GPIO, "rtc cs en");
152 if (err) {
153 pr_err("CM-T3517: rtc cs en gpio request failed: %d\n", err);
154 return;
155 }
156
157 gpio_direction_output(RTC_CS_EN_GPIO, 1);
158
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159 platform_device_register(&cm_t3517_rtc_device);
160}
161#else
162static inline void cm_t3517_init_rtc(void) {}
163#endif
d04b620e 164
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165#if defined(CONFIG_USB_EHCI_HCD) || defined(CONFIG_USB_EHCI_HCD_MODULE)
166#define HSUSB1_RESET_GPIO (146)
167#define HSUSB2_RESET_GPIO (147)
168#define USB_HUB_RESET_GPIO (152)
169
170static struct ehci_hcd_omap_platform_data cm_t3517_ehci_pdata __initdata = {
171 .port_mode[0] = EHCI_HCD_OMAP_MODE_PHY,
172 .port_mode[1] = EHCI_HCD_OMAP_MODE_PHY,
173 .port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
174
175 .phy_reset = true,
176 .reset_gpio_port[0] = HSUSB1_RESET_GPIO,
177 .reset_gpio_port[1] = HSUSB2_RESET_GPIO,
178 .reset_gpio_port[2] = -EINVAL,
179};
180
181static int cm_t3517_init_usbh(void)
182{
183 int err;
184
185 err = gpio_request(USB_HUB_RESET_GPIO, "usb hub rst");
186 if (err) {
187 pr_err("CM-T3517: usb hub rst gpio request failed: %d\n", err);
188 } else {
189 gpio_direction_output(USB_HUB_RESET_GPIO, 0);
190 udelay(10);
191 gpio_set_value(USB_HUB_RESET_GPIO, 1);
192 msleep(1);
193 }
194
195 usb_ehci_init(&cm_t3517_ehci_pdata);
196
197 return 0;
198}
199#else
200static inline int cm_t3517_init_usbh(void)
201{
202 return 0;
203}
204#endif
205
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206#if defined(CONFIG_MTD_NAND_OMAP2) || defined(CONFIG_MTD_NAND_OMAP2_MODULE)
207#define NAND_BLOCK_SIZE SZ_128K
208
209static struct mtd_partition cm_t3517_nand_partitions[] = {
210 {
211 .name = "xloader",
212 .offset = 0, /* Offset = 0x00000 */
213 .size = 4 * NAND_BLOCK_SIZE,
214 .mask_flags = MTD_WRITEABLE
215 },
216 {
217 .name = "uboot",
218 .offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */
219 .size = 15 * NAND_BLOCK_SIZE,
220 },
221 {
222 .name = "uboot environment",
223 .offset = MTDPART_OFS_APPEND, /* Offset = 0x260000 */
224 .size = 2 * NAND_BLOCK_SIZE,
225 },
226 {
227 .name = "linux",
2216b436 228 .offset = MTDPART_OFS_APPEND, /* Offset = 0x2A0000 */
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229 .size = 32 * NAND_BLOCK_SIZE,
230 },
231 {
232 .name = "rootfs",
2216b436 233 .offset = MTDPART_OFS_APPEND, /* Offset = 0x6A0000 */
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234 .size = MTDPART_SIZ_FULL,
235 },
236};
237
238static struct omap_nand_platform_data cm_t3517_nand_data = {
239 .parts = cm_t3517_nand_partitions,
240 .nr_parts = ARRAY_SIZE(cm_t3517_nand_partitions),
241 .dma_channel = -1, /* disable DMA in OMAP NAND driver */
242 .cs = 0,
243};
244
245static void __init cm_t3517_init_nand(void)
246{
247 if (gpmc_nand_init(&cm_t3517_nand_data) < 0)
248 pr_err("CM-T3517: NAND initialization failed\n");
249}
250#else
251static inline void cm_t3517_init_nand(void) {}
252#endif
253
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254static struct omap_board_config_kernel cm_t3517_config[] __initdata = {
255};
256
257static void __init cm_t3517_init_irq(void)
258{
259 omap_board_config = cm_t3517_config;
260 omap_board_config_size = ARRAY_SIZE(cm_t3517_config);
261
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262 omap2_init_common_infrastructure();
263 omap2_init_common_devices(NULL, NULL);
d04b620e 264 omap_init_irq();
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265}
266
267static struct omap_board_mux board_mux[] __initdata = {
268 /* GPIO186 - Green LED */
269 OMAP3_MUX(SYS_CLKOUT2, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
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270
271 /* RTC GPIOs: */
272 /* IO - GPIO153 */
46893a56 273 OMAP3_MUX(MCBSP4_DR, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
fec5568c 274 /* WR# - GPIO154 */
46893a56 275 OMAP3_MUX(MCBSP4_DX, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
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276 /* RD# - GPIO53 */
277 OMAP3_MUX(GPMC_NCS2, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
278 /* CS# - GPIO163 */
46893a56 279 OMAP3_MUX(UART3_CTS_RCTX, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
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280 /* CS EN - GPIO160 */
281 OMAP3_MUX(MCBSP_CLKS, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
282
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283 /* HSUSB1 RESET */
284 OMAP3_MUX(UART2_TX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
285 /* HSUSB2 RESET */
286 OMAP3_MUX(UART2_RX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
287 /* CM-T3517 USB HUB nRESET */
288 OMAP3_MUX(MCBSP4_CLKX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
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289
290 { .reg_offset = OMAP_MUX_TERMINATOR },
291};
292
293static void __init cm_t3517_init(void)
294{
295 omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
296 omap_serial_init();
297 cm_t3517_init_leds();
ec34fccd 298 cm_t3517_init_nand();
46893a56 299 cm_t3517_init_rtc();
525d75b3 300 cm_t3517_init_usbh();
b6a26b4b 301 cm_t3517_init_hecc();
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302}
303
304MACHINE_START(CM_T3517, "Compulab CM-T3517")
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305 .boot_params = 0x80000100,
306 .map_io = omap3_map_io,
307 .reserve = omap_reserve,
308 .init_irq = cm_t3517_init_irq,
309 .init_machine = cm_t3517_init,
310 .timer = &omap_timer,
311MACHINE_END
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