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>
28 #include <linux/delay.h>
29 #include <linux/gpio.h>
30 #include <linux/leds.h>
31 #include <linux/rtc-v3020.h>
32 #include <linux/mtd/mtd.h>
33 #include <linux/mtd/nand.h>
34 #include <linux/mtd/partitions.h>
35 #include <linux/mmc/host.h>
36 #include <linux/can/platform/ti_hecc.h>
37
38 #include <asm/mach-types.h>
39 #include <asm/mach/arch.h>
40 #include <asm/mach/map.h>
41
42 #include "common.h"
43 #include <linux/platform_data/mtd-nand-omap2.h>
44 #include "gpmc.h"
45
46 #include "am35xx.h"
47
48 #include "mux.h"
49 #include "control.h"
50 #include "hsmmc.h"
51 #include "common-board-devices.h"
52 #include "am35xx-emac.h"
53 #include "gpmc-nand.h"
54
55 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
56 static struct gpio_led cm_t3517_leds[] = {
57 [0] = {
58 .gpio = 186,
59 .name = "cm-t3517:green",
60 .default_trigger = "heartbeat",
61 .active_low = 0,
62 },
63 };
64
65 static struct gpio_led_platform_data cm_t3517_led_pdata = {
66 .num_leds = ARRAY_SIZE(cm_t3517_leds),
67 .leds = cm_t3517_leds,
68 };
69
70 static struct platform_device cm_t3517_led_device = {
71 .name = "leds-gpio",
72 .id = -1,
73 .dev = {
74 .platform_data = &cm_t3517_led_pdata,
75 },
76 };
77
cm_t3517_init_leds(void)78 static void __init cm_t3517_init_leds(void)
79 {
80 platform_device_register(&cm_t3517_led_device);
81 }
82 #else
cm_t3517_init_leds(void)83 static inline void cm_t3517_init_leds(void) {}
84 #endif
85
86 #if defined(CONFIG_CAN_TI_HECC) || defined(CONFIG_CAN_TI_HECC_MODULE)
87 static struct resource cm_t3517_hecc_resources[] = {
88 {
89 .start = AM35XX_IPSS_HECC_BASE,
90 .end = AM35XX_IPSS_HECC_BASE + SZ_16K - 1,
91 .flags = IORESOURCE_MEM,
92 },
93 {
94 .start = 24 + OMAP_INTC_START,
95 .flags = IORESOURCE_IRQ,
96 },
97 };
98
99 static struct ti_hecc_platform_data cm_t3517_hecc_pdata = {
100 .scc_hecc_offset = AM35XX_HECC_SCC_HECC_OFFSET,
101 .scc_ram_offset = AM35XX_HECC_SCC_RAM_OFFSET,
102 .hecc_ram_offset = AM35XX_HECC_RAM_OFFSET,
103 .mbx_offset = AM35XX_HECC_MBOX_OFFSET,
104 .int_line = AM35XX_HECC_INT_LINE,
105 .version = AM35XX_HECC_VERSION,
106 };
107
108 static struct platform_device cm_t3517_hecc_device = {
109 .name = "ti_hecc",
110 .id = 1,
111 .num_resources = ARRAY_SIZE(cm_t3517_hecc_resources),
112 .resource = cm_t3517_hecc_resources,
113 .dev = {
114 .platform_data = &cm_t3517_hecc_pdata,
115 },
116 };
117
cm_t3517_init_hecc(void)118 static void cm_t3517_init_hecc(void)
119 {
120 platform_device_register(&cm_t3517_hecc_device);
121 }
122 #else
cm_t3517_init_hecc(void)123 static inline void cm_t3517_init_hecc(void) {}
124 #endif
125
126 #if defined(CONFIG_MMC_OMAP_HS) || defined(CONFIG_MMC_OMAP_HS_MODULE)
127 static struct omap2_hsmmc_info cm_t3517_mmc[] = {
128 {
129 .mmc = 1,
130 .caps = MMC_CAP_4_BIT_DATA,
131 .gpio_cd = 144,
132 .gpio_wp = 59,
133 },
134 {
135 .mmc = 2,
136 .caps = MMC_CAP_4_BIT_DATA,
137 .gpio_cd = -EINVAL,
138 .gpio_wp = -EINVAL,
139 },
140 {} /* Terminator */
141 };
142 #else
143 #define cm_t3517_mmc NULL
144 #endif
145
146 #if defined(CONFIG_RTC_DRV_V3020) || defined(CONFIG_RTC_DRV_V3020_MODULE)
147 #define RTC_IO_GPIO (153)
148 #define RTC_WR_GPIO (154)
149 #define RTC_RD_GPIO (53)
150 #define RTC_CS_GPIO (163)
151 #define RTC_CS_EN_GPIO (160)
152
153 struct v3020_platform_data cm_t3517_v3020_pdata = {
154 .use_gpio = 1,
155 .gpio_cs = RTC_CS_GPIO,
156 .gpio_wr = RTC_WR_GPIO,
157 .gpio_rd = RTC_RD_GPIO,
158 .gpio_io = RTC_IO_GPIO,
159 };
160
161 static struct platform_device cm_t3517_rtc_device = {
162 .name = "v3020",
163 .id = -1,
164 .dev = {
165 .platform_data = &cm_t3517_v3020_pdata,
166 }
167 };
168
cm_t3517_init_rtc(void)169 static void __init cm_t3517_init_rtc(void)
170 {
171 int err;
172
173 err = gpio_request_one(RTC_CS_EN_GPIO, GPIOF_OUT_INIT_HIGH,
174 "rtc cs en");
175 if (err) {
176 pr_err("CM-T3517: rtc cs en gpio request failed: %d\n", err);
177 return;
178 }
179
180 platform_device_register(&cm_t3517_rtc_device);
181 }
182 #else
cm_t3517_init_rtc(void)183 static inline void cm_t3517_init_rtc(void) {}
184 #endif
185
186 #if defined(CONFIG_USB_EHCI_HCD) || defined(CONFIG_USB_EHCI_HCD_MODULE)
187 #define HSUSB1_RESET_GPIO (146)
188 #define HSUSB2_RESET_GPIO (147)
189 #define USB_HUB_RESET_GPIO (152)
190
191 static struct usbhs_phy_data phy_data[] __initdata = {
192 {
193 .port = 1,
194 .reset_gpio = HSUSB1_RESET_GPIO,
195 .vcc_gpio = -EINVAL,
196 },
197 {
198 .port = 2,
199 .reset_gpio = HSUSB2_RESET_GPIO,
200 .vcc_gpio = -EINVAL,
201 },
202 };
203
204 static struct usbhs_omap_platform_data cm_t3517_ehci_pdata __initdata = {
205 .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
206 .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
207 };
208
cm_t3517_init_usbh(void)209 static int __init cm_t3517_init_usbh(void)
210 {
211 int err;
212
213 err = gpio_request_one(USB_HUB_RESET_GPIO, GPIOF_OUT_INIT_LOW,
214 "usb hub rst");
215 if (err) {
216 pr_err("CM-T3517: usb hub rst gpio request failed: %d\n", err);
217 } else {
218 udelay(10);
219 gpio_set_value(USB_HUB_RESET_GPIO, 1);
220 msleep(1);
221 }
222
223 usbhs_init_phys(phy_data, ARRAY_SIZE(phy_data));
224 usbhs_init(&cm_t3517_ehci_pdata);
225
226 return 0;
227 }
228 #else
cm_t3517_init_usbh(void)229 static inline int cm_t3517_init_usbh(void)
230 {
231 return 0;
232 }
233 #endif
234
235 #if defined(CONFIG_MTD_NAND_OMAP2) || defined(CONFIG_MTD_NAND_OMAP2_MODULE)
236 static struct mtd_partition cm_t3517_nand_partitions[] = {
237 {
238 .name = "xloader",
239 .offset = 0, /* Offset = 0x00000 */
240 .size = 4 * NAND_BLOCK_SIZE,
241 .mask_flags = MTD_WRITEABLE
242 },
243 {
244 .name = "uboot",
245 .offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */
246 .size = 15 * NAND_BLOCK_SIZE,
247 },
248 {
249 .name = "uboot environment",
250 .offset = MTDPART_OFS_APPEND, /* Offset = 0x260000 */
251 .size = 2 * NAND_BLOCK_SIZE,
252 },
253 {
254 .name = "linux",
255 .offset = MTDPART_OFS_APPEND, /* Offset = 0x2A0000 */
256 .size = 32 * NAND_BLOCK_SIZE,
257 },
258 {
259 .name = "rootfs",
260 .offset = MTDPART_OFS_APPEND, /* Offset = 0x6A0000 */
261 .size = MTDPART_SIZ_FULL,
262 },
263 };
264
265 static struct omap_nand_platform_data cm_t3517_nand_data = {
266 .parts = cm_t3517_nand_partitions,
267 .nr_parts = ARRAY_SIZE(cm_t3517_nand_partitions),
268 .cs = 0,
269 };
270
cm_t3517_init_nand(void)271 static void __init cm_t3517_init_nand(void)
272 {
273 if (gpmc_nand_init(&cm_t3517_nand_data, NULL) < 0)
274 pr_err("CM-T3517: NAND initialization failed\n");
275 }
276 #else
cm_t3517_init_nand(void)277 static inline void cm_t3517_init_nand(void) {}
278 #endif
279
280 #ifdef CONFIG_OMAP_MUX
281 static struct omap_board_mux board_mux[] __initdata = {
282 /* GPIO186 - Green LED */
283 OMAP3_MUX(SYS_CLKOUT2, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
284
285 /* RTC GPIOs: */
286 /* IO - GPIO153 */
287 OMAP3_MUX(MCBSP4_DR, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
288 /* WR# - GPIO154 */
289 OMAP3_MUX(MCBSP4_DX, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
290 /* RD# - GPIO53 */
291 OMAP3_MUX(GPMC_NCS2, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
292 /* CS# - GPIO163 */
293 OMAP3_MUX(UART3_CTS_RCTX, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
294 /* CS EN - GPIO160 */
295 OMAP3_MUX(MCBSP_CLKS, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
296
297 /* HSUSB1 RESET */
298 OMAP3_MUX(UART2_TX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
299 /* HSUSB2 RESET */
300 OMAP3_MUX(UART2_RX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
301 /* CM-T3517 USB HUB nRESET */
302 OMAP3_MUX(MCBSP4_CLKX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
303
304 /* CD - GPIO144 and WP - GPIO59 for MMC1 - SB-T35 */
305 OMAP3_MUX(UART2_CTS, OMAP_MUX_MODE4 | OMAP_PIN_INPUT_PULLUP),
306 OMAP3_MUX(GPMC_CLK, OMAP_MUX_MODE4 | OMAP_PIN_INPUT_PULLUP),
307
308 { .reg_offset = OMAP_MUX_TERMINATOR },
309 };
310 #endif
311
cm_t3517_init(void)312 static void __init cm_t3517_init(void)
313 {
314 omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
315 omap_serial_init();
316 omap_sdrc_init(NULL, NULL);
317 cm_t3517_init_leds();
318 cm_t3517_init_nand();
319 cm_t3517_init_rtc();
320 cm_t3517_init_usbh();
321 cm_t3517_init_hecc();
322 am35xx_emac_init(AM35XX_DEFAULT_MDIO_FREQUENCY, 1);
323 omap_hsmmc_init(cm_t3517_mmc);
324 }
325
326 MACHINE_START(CM_T3517, "Compulab CM-T3517")
327 .atag_offset = 0x100,
328 .reserve = omap_reserve,
329 .map_io = omap3_map_io,
330 .init_early = am35xx_init_early,
331 .init_irq = omap3_init_irq,
332 .init_machine = cm_t3517_init,
333 .init_late = am35xx_init_late,
334 .init_time = omap3_gptimer_timer_init,
335 .restart = omap3xxx_restart,
336 MACHINE_END
337