Merge branch 'davinci/cleanup' into next/cleanup
[pandora-kernel.git] / arch / arm / mach-omap2 / board-cm-t3517.c
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/can/platform/ti_hecc.h>
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>
43 #include <plat/usb.h>
44 #include <plat/nand.h>
45 #include <plat/gpmc.h>
46
47 #include <mach/am35xx.h>
48
49 #include "mux.h"
50 #include "control.h"
51 #include "common-board-devices.h"
52
53 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
54 static struct gpio_led cm_t3517_leds[] = {
55         [0] = {
56                 .gpio                   = 186,
57                 .name                   = "cm-t3517:green",
58                 .default_trigger        = "heartbeat",
59                 .active_low             = 0,
60         },
61 };
62
63 static struct gpio_led_platform_data cm_t3517_led_pdata = {
64         .num_leds       = ARRAY_SIZE(cm_t3517_leds),
65         .leds           = cm_t3517_leds,
66 };
67
68 static struct platform_device cm_t3517_led_device = {
69         .name           = "leds-gpio",
70         .id             = -1,
71         .dev            = {
72                 .platform_data  = &cm_t3517_led_pdata,
73         },
74 };
75
76 static void __init cm_t3517_init_leds(void)
77 {
78         platform_device_register(&cm_t3517_led_device);
79 }
80 #else
81 static inline void cm_t3517_init_leds(void) {}
82 #endif
83
84 #if defined(CONFIG_CAN_TI_HECC) || defined(CONFIG_CAN_TI_HECC_MODULE)
85 static struct resource cm_t3517_hecc_resources[] = {
86         {
87                 .start  = AM35XX_IPSS_HECC_BASE,
88                 .end    = AM35XX_IPSS_HECC_BASE + SZ_16K - 1,
89                 .flags  = IORESOURCE_MEM,
90         },
91         {
92                 .start  = INT_35XX_HECC0_IRQ,
93                 .end    = INT_35XX_HECC0_IRQ,
94                 .flags  = IORESOURCE_IRQ,
95         },
96 };
97
98 static struct ti_hecc_platform_data cm_t3517_hecc_pdata = {
99         .scc_hecc_offset        = AM35XX_HECC_SCC_HECC_OFFSET,
100         .scc_ram_offset         = AM35XX_HECC_SCC_RAM_OFFSET,
101         .hecc_ram_offset        = AM35XX_HECC_RAM_OFFSET,
102         .mbx_offset             = AM35XX_HECC_MBOX_OFFSET,
103         .int_line               = AM35XX_HECC_INT_LINE,
104         .version                = AM35XX_HECC_VERSION,
105 };
106
107 static struct platform_device cm_t3517_hecc_device = {
108         .name           = "ti_hecc",
109         .id             = 1,
110         .num_resources  = ARRAY_SIZE(cm_t3517_hecc_resources),
111         .resource       = cm_t3517_hecc_resources,
112         .dev            = {
113                 .platform_data  = &cm_t3517_hecc_pdata,
114         },
115 };
116
117 static void cm_t3517_init_hecc(void)
118 {
119         platform_device_register(&cm_t3517_hecc_device);
120 }
121 #else
122 static inline void cm_t3517_init_hecc(void) {}
123 #endif
124
125 #if defined(CONFIG_RTC_DRV_V3020) || defined(CONFIG_RTC_DRV_V3020_MODULE)
126 #define RTC_IO_GPIO             (153)
127 #define RTC_WR_GPIO             (154)
128 #define RTC_RD_GPIO             (53)
129 #define RTC_CS_GPIO             (163)
130 #define RTC_CS_EN_GPIO          (160)
131
132 struct v3020_platform_data cm_t3517_v3020_pdata = {
133         .use_gpio       = 1,
134         .gpio_cs        = RTC_CS_GPIO,
135         .gpio_wr        = RTC_WR_GPIO,
136         .gpio_rd        = RTC_RD_GPIO,
137         .gpio_io        = RTC_IO_GPIO,
138 };
139
140 static struct platform_device cm_t3517_rtc_device = {
141         .name           = "v3020",
142         .id             = -1,
143         .dev            = {
144                 .platform_data = &cm_t3517_v3020_pdata,
145         }
146 };
147
148 static void __init cm_t3517_init_rtc(void)
149 {
150         int err;
151
152         err = gpio_request_one(RTC_CS_EN_GPIO, GPIOF_OUT_INIT_HIGH,
153                                "rtc cs en");
154         if (err) {
155                 pr_err("CM-T3517: rtc cs en gpio request failed: %d\n", err);
156                 return;
157         }
158
159         platform_device_register(&cm_t3517_rtc_device);
160 }
161 #else
162 static inline void cm_t3517_init_rtc(void) {}
163 #endif
164
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
170 static struct usbhs_omap_board_data cm_t3517_ehci_pdata __initdata = {
171         .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
172         .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
173         .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
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
181 static int __init cm_t3517_init_usbh(void)
182 {
183         int err;
184
185         err = gpio_request_one(USB_HUB_RESET_GPIO, GPIOF_OUT_INIT_LOW,
186                                "usb hub rst");
187         if (err) {
188                 pr_err("CM-T3517: usb hub rst gpio request failed: %d\n", err);
189         } else {
190                 udelay(10);
191                 gpio_set_value(USB_HUB_RESET_GPIO, 1);
192                 msleep(1);
193         }
194
195         usbhs_init(&cm_t3517_ehci_pdata);
196
197         return 0;
198 }
199 #else
200 static inline int cm_t3517_init_usbh(void)
201 {
202         return 0;
203 }
204 #endif
205
206 #if defined(CONFIG_MTD_NAND_OMAP2) || defined(CONFIG_MTD_NAND_OMAP2_MODULE)
207 static struct mtd_partition cm_t3517_nand_partitions[] = {
208         {
209                 .name           = "xloader",
210                 .offset         = 0,                    /* Offset = 0x00000 */
211                 .size           = 4 * NAND_BLOCK_SIZE,
212                 .mask_flags     = MTD_WRITEABLE
213         },
214         {
215                 .name           = "uboot",
216                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x80000 */
217                 .size           = 15 * NAND_BLOCK_SIZE,
218         },
219         {
220                 .name           = "uboot environment",
221                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x260000 */
222                 .size           = 2 * NAND_BLOCK_SIZE,
223         },
224         {
225                 .name           = "linux",
226                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x2A0000 */
227                 .size           = 32 * NAND_BLOCK_SIZE,
228         },
229         {
230                 .name           = "rootfs",
231                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x6A0000 */
232                 .size           = MTDPART_SIZ_FULL,
233         },
234 };
235
236 static struct omap_nand_platform_data cm_t3517_nand_data = {
237         .parts                  = cm_t3517_nand_partitions,
238         .nr_parts               = ARRAY_SIZE(cm_t3517_nand_partitions),
239         .cs                     = 0,
240 };
241
242 static void __init cm_t3517_init_nand(void)
243 {
244         if (gpmc_nand_init(&cm_t3517_nand_data) < 0)
245                 pr_err("CM-T3517: NAND initialization failed\n");
246 }
247 #else
248 static inline void cm_t3517_init_nand(void) {}
249 #endif
250
251 static struct omap_board_config_kernel cm_t3517_config[] __initdata = {
252 };
253
254 #ifdef CONFIG_OMAP_MUX
255 static struct omap_board_mux board_mux[] __initdata = {
256         /* GPIO186 - Green LED */
257         OMAP3_MUX(SYS_CLKOUT2, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
258
259         /* RTC GPIOs: */
260         /* IO - GPIO153 */
261         OMAP3_MUX(MCBSP4_DR, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
262         /* WR# - GPIO154 */
263         OMAP3_MUX(MCBSP4_DX, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
264         /* RD# - GPIO53 */
265         OMAP3_MUX(GPMC_NCS2, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
266         /* CS# - GPIO163 */
267         OMAP3_MUX(UART3_CTS_RCTX, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
268         /* CS EN - GPIO160 */
269         OMAP3_MUX(MCBSP_CLKS, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
270
271         /* HSUSB1 RESET */
272         OMAP3_MUX(UART2_TX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
273         /* HSUSB2 RESET */
274         OMAP3_MUX(UART2_RX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
275         /* CM-T3517 USB HUB nRESET */
276         OMAP3_MUX(MCBSP4_CLKX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
277
278         { .reg_offset = OMAP_MUX_TERMINATOR },
279 };
280 #endif
281
282 static void __init cm_t3517_init(void)
283 {
284         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
285         omap_serial_init();
286         omap_sdrc_init(NULL, NULL);
287         omap_board_config = cm_t3517_config;
288         omap_board_config_size = ARRAY_SIZE(cm_t3517_config);
289         cm_t3517_init_leds();
290         cm_t3517_init_nand();
291         cm_t3517_init_rtc();
292         cm_t3517_init_usbh();
293         cm_t3517_init_hecc();
294 }
295
296 MACHINE_START(CM_T3517, "Compulab CM-T3517")
297         .boot_params    = 0x80000100,
298         .reserve        = omap_reserve,
299         .map_io         = omap3_map_io,
300         .init_early     = am35xx_init_early,
301         .init_irq       = omap3_init_irq,
302         .init_machine   = cm_t3517_init,
303         .timer          = &omap3_timer,
304 MACHINE_END