1115b8ab5e1dea3cdf17445150afc1e0a23dcd45
[linux-2.6.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/control.h>
44 #include <plat/usb.h>
45 #include <plat/nand.h>
46 #include <plat/gpmc.h>
47
48 #include <mach/am35xx.h>
49
50 #include "mux.h"
51
52 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
53 static 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
62 static struct gpio_led_platform_data cm_t3517_led_pdata = {
63         .num_leds       = ARRAY_SIZE(cm_t3517_leds),
64         .leds           = cm_t3517_leds,
65 };
66
67 static 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
75 static void __init cm_t3517_init_leds(void)
76 {
77         platform_device_register(&cm_t3517_led_device);
78 }
79 #else
80 static inline void cm_t3517_init_leds(void) {}
81 #endif
82
83 #if defined(CONFIG_CAN_TI_HECC) || defined(CONFIG_CAN_TI_HECC_MODULE)
84 static 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
97 static 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
106 static 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
116 static void cm_t3517_init_hecc(void)
117 {
118         platform_device_register(&cm_t3517_hecc_device);
119 }
120 #else
121 static inline void cm_t3517_init_hecc(void) {}
122 #endif
123
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)
127 #define RTC_RD_GPIO             (160)
128 #define RTC_CS_GPIO             (163)
129
130 struct v3020_platform_data cm_t3517_v3020_pdata = {
131         .use_gpio       = 1,
132         .gpio_cs        = RTC_CS_GPIO,
133         .gpio_wr        = RTC_WR_GPIO,
134         .gpio_rd        = RTC_RD_GPIO,
135         .gpio_io        = RTC_IO_GPIO,
136 };
137
138 static struct platform_device cm_t3517_rtc_device = {
139         .name           = "v3020",
140         .id             = -1,
141         .dev            = {
142                 .platform_data = &cm_t3517_v3020_pdata,
143         }
144 };
145
146 static void __init cm_t3517_init_rtc(void)
147 {
148         platform_device_register(&cm_t3517_rtc_device);
149 }
150 #else
151 static inline void cm_t3517_init_rtc(void) {}
152 #endif
153
154 #if defined(CONFIG_USB_EHCI_HCD) || defined(CONFIG_USB_EHCI_HCD_MODULE)
155 #define HSUSB1_RESET_GPIO       (146)
156 #define HSUSB2_RESET_GPIO       (147)
157 #define USB_HUB_RESET_GPIO      (152)
158
159 static struct ehci_hcd_omap_platform_data cm_t3517_ehci_pdata __initdata = {
160         .port_mode[0] = EHCI_HCD_OMAP_MODE_PHY,
161         .port_mode[1] = EHCI_HCD_OMAP_MODE_PHY,
162         .port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
163
164         .phy_reset  = true,
165         .reset_gpio_port[0]  = HSUSB1_RESET_GPIO,
166         .reset_gpio_port[1]  = HSUSB2_RESET_GPIO,
167         .reset_gpio_port[2]  = -EINVAL,
168 };
169
170 static int cm_t3517_init_usbh(void)
171 {
172         int err;
173
174         err = gpio_request(USB_HUB_RESET_GPIO, "usb hub rst");
175         if (err) {
176                 pr_err("CM-T3517: usb hub rst gpio request failed: %d\n", err);
177         } else {
178                 gpio_direction_output(USB_HUB_RESET_GPIO, 0);
179                 udelay(10);
180                 gpio_set_value(USB_HUB_RESET_GPIO, 1);
181                 msleep(1);
182         }
183
184         usb_ehci_init(&cm_t3517_ehci_pdata);
185
186         return 0;
187 }
188 #else
189 static inline int cm_t3517_init_usbh(void)
190 {
191         return 0;
192 }
193 #endif
194
195 #if defined(CONFIG_MTD_NAND_OMAP2) || defined(CONFIG_MTD_NAND_OMAP2_MODULE)
196 #define NAND_BLOCK_SIZE         SZ_128K
197
198 static struct mtd_partition cm_t3517_nand_partitions[] = {
199         {
200                 .name           = "xloader",
201                 .offset         = 0,                    /* Offset = 0x00000 */
202                 .size           = 4 * NAND_BLOCK_SIZE,
203                 .mask_flags     = MTD_WRITEABLE
204         },
205         {
206                 .name           = "uboot",
207                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x80000 */
208                 .size           = 15 * NAND_BLOCK_SIZE,
209         },
210         {
211                 .name           = "uboot environment",
212                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x260000 */
213                 .size           = 2 * NAND_BLOCK_SIZE,
214         },
215         {
216                 .name           = "linux",
217                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x280000 */
218                 .size           = 32 * NAND_BLOCK_SIZE,
219         },
220         {
221                 .name           = "rootfs",
222                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x680000 */
223                 .size           = MTDPART_SIZ_FULL,
224         },
225 };
226
227 static struct omap_nand_platform_data cm_t3517_nand_data = {
228         .parts                  = cm_t3517_nand_partitions,
229         .nr_parts               = ARRAY_SIZE(cm_t3517_nand_partitions),
230         .dma_channel            = -1,   /* disable DMA in OMAP NAND driver */
231         .cs                     = 0,
232 };
233
234 static void __init cm_t3517_init_nand(void)
235 {
236         if (gpmc_nand_init(&cm_t3517_nand_data) < 0)
237                 pr_err("CM-T3517: NAND initialization failed\n");
238 }
239 #else
240 static inline void cm_t3517_init_nand(void) {}
241 #endif
242
243 static struct omap_board_config_kernel cm_t3517_config[] __initdata = {
244 };
245
246 static void __init cm_t3517_init_irq(void)
247 {
248         omap_board_config = cm_t3517_config;
249         omap_board_config_size = ARRAY_SIZE(cm_t3517_config);
250
251         omap2_init_common_hw(NULL, NULL);
252         omap_init_irq();
253         omap_gpio_init();
254 }
255
256 static struct omap_board_mux board_mux[] __initdata = {
257         /* GPIO186 - Green LED */
258         OMAP3_MUX(SYS_CLKOUT2, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
259         /* RTC GPIOs: IO, WR#, RD#, CS# */
260         OMAP3_MUX(MCBSP4_DR, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
261         OMAP3_MUX(MCBSP4_DX, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
262         OMAP3_MUX(MCBSP_CLKS, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
263         OMAP3_MUX(UART3_CTS_RCTX, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
264         /* HSUSB1 RESET */
265         OMAP3_MUX(UART2_TX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
266         /* HSUSB2 RESET */
267         OMAP3_MUX(UART2_RX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
268         /* CM-T3517 USB HUB nRESET */
269         OMAP3_MUX(MCBSP4_CLKX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
270
271         { .reg_offset = OMAP_MUX_TERMINATOR },
272 };
273
274 static void __init cm_t3517_init(void)
275 {
276         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
277         omap_serial_init();
278         cm_t3517_init_leds();
279         cm_t3517_init_nand();
280         cm_t3517_init_rtc();
281         cm_t3517_init_usbh();
282         cm_t3517_init_hecc();
283 }
284
285 MACHINE_START(CM_T3517, "Compulab CM-T3517")
286         .phys_io        = 0x48000000,
287         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
288         .boot_params    = 0x80000100,
289         .map_io         = omap3_map_io,
290         .reserve        = omap_reserve,
291         .init_irq       = cm_t3517_init_irq,
292         .init_machine   = cm_t3517_init,
293         .timer          = &omap_timer,
294 MACHINE_END