2 * linux/arch/arm/mach-omap2/board-cm-t3517.c
4 * Support for the CompuLab CM-T3517 modules
6 * Copyright (C) 2010 CompuLab, Ltd.
7 * Author: Igor Grinberg <grinberg@compulab.co.il>
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.
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.
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
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>
37 #include <asm/mach-types.h>
38 #include <asm/mach/arch.h>
39 #include <asm/mach/map.h>
41 #include <plat/board.h>
42 #include <plat/common.h>
43 #include <plat/control.h>
45 #include <plat/nand.h>
46 #include <plat/gpmc.h>
48 #include <mach/am35xx.h>
52 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
53 static struct gpio_led cm_t3517_leds[] = {
56 .name = "cm-t3517:green",
57 .default_trigger = "heartbeat",
62 static struct gpio_led_platform_data cm_t3517_led_pdata = {
63 .num_leds = ARRAY_SIZE(cm_t3517_leds),
64 .leds = cm_t3517_leds,
67 static struct platform_device cm_t3517_led_device = {
71 .platform_data = &cm_t3517_led_pdata,
75 static void __init cm_t3517_init_leds(void)
77 platform_device_register(&cm_t3517_led_device);
80 static inline void cm_t3517_init_leds(void) {}
83 #if defined(CONFIG_CAN_TI_HECC) || defined(CONFIG_CAN_TI_HECC_MODULE)
84 static struct resource cm_t3517_hecc_resources[] = {
86 .start = AM35XX_IPSS_HECC_BASE,
87 .end = AM35XX_IPSS_HECC_BASE + SZ_16K - 1,
88 .flags = IORESOURCE_MEM,
91 .start = INT_35XX_HECC0_IRQ,
92 .end = INT_35XX_HECC0_IRQ,
93 .flags = IORESOURCE_IRQ,
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,
106 static struct platform_device cm_t3517_hecc_device = {
109 .num_resources = ARRAY_SIZE(cm_t3517_hecc_resources),
110 .resource = cm_t3517_hecc_resources,
112 .platform_data = &cm_t3517_hecc_pdata,
116 static void cm_t3517_init_hecc(void)
118 platform_device_register(&cm_t3517_hecc_device);
121 static inline void cm_t3517_init_hecc(void) {}
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)
130 struct v3020_platform_data cm_t3517_v3020_pdata = {
132 .gpio_cs = RTC_CS_GPIO,
133 .gpio_wr = RTC_WR_GPIO,
134 .gpio_rd = RTC_RD_GPIO,
135 .gpio_io = RTC_IO_GPIO,
138 static struct platform_device cm_t3517_rtc_device = {
142 .platform_data = &cm_t3517_v3020_pdata,
146 static void __init cm_t3517_init_rtc(void)
148 platform_device_register(&cm_t3517_rtc_device);
151 static inline void cm_t3517_init_rtc(void) {}
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)
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,
165 .reset_gpio_port[0] = HSUSB1_RESET_GPIO,
166 .reset_gpio_port[1] = HSUSB2_RESET_GPIO,
167 .reset_gpio_port[2] = -EINVAL,
170 static int cm_t3517_init_usbh(void)
174 err = gpio_request(USB_HUB_RESET_GPIO, "usb hub rst");
176 pr_err("CM-T3517: usb hub rst gpio request failed: %d\n", err);
178 gpio_direction_output(USB_HUB_RESET_GPIO, 0);
180 gpio_set_value(USB_HUB_RESET_GPIO, 1);
184 usb_ehci_init(&cm_t3517_ehci_pdata);
189 static inline int cm_t3517_init_usbh(void)
195 #if defined(CONFIG_MTD_NAND_OMAP2) || defined(CONFIG_MTD_NAND_OMAP2_MODULE)
196 #define NAND_BLOCK_SIZE SZ_128K
198 static struct mtd_partition cm_t3517_nand_partitions[] = {
201 .offset = 0, /* Offset = 0x00000 */
202 .size = 4 * NAND_BLOCK_SIZE,
203 .mask_flags = MTD_WRITEABLE
207 .offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */
208 .size = 15 * NAND_BLOCK_SIZE,
211 .name = "uboot environment",
212 .offset = MTDPART_OFS_APPEND, /* Offset = 0x260000 */
213 .size = 2 * NAND_BLOCK_SIZE,
217 .offset = MTDPART_OFS_APPEND, /* Offset = 0x280000 */
218 .size = 32 * NAND_BLOCK_SIZE,
222 .offset = MTDPART_OFS_APPEND, /* Offset = 0x680000 */
223 .size = MTDPART_SIZ_FULL,
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 */
234 static void __init cm_t3517_init_nand(void)
236 if (gpmc_nand_init(&cm_t3517_nand_data) < 0)
237 pr_err("CM-T3517: NAND initialization failed\n");
240 static inline void cm_t3517_init_nand(void) {}
243 static struct omap_board_config_kernel cm_t3517_config[] __initdata = {
246 static void __init cm_t3517_init_irq(void)
248 omap_board_config = cm_t3517_config;
249 omap_board_config_size = ARRAY_SIZE(cm_t3517_config);
251 omap2_init_common_hw(NULL, NULL);
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),
265 OMAP3_MUX(UART2_TX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
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),
271 { .reg_offset = OMAP_MUX_TERMINATOR },
274 static void __init cm_t3517_init(void)
276 omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
278 cm_t3517_init_leds();
279 cm_t3517_init_nand();
281 cm_t3517_init_usbh();
282 cm_t3517_init_hecc();
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,