board-cm-t3517.c revision 77640aabd7558e43b65bc1a0311be2dbb42c3ff8 
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
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
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
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
130struct 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
138static 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
146static void __init cm_t3517_init_rtc(void)
147{
148	platform_device_register(&cm_t3517_rtc_device);
149}
150#else
151static 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
159static 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
170static 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
189static 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
198static 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
227static 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
234static 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
240static inline void cm_t3517_init_nand(void) {}
241#endif
242
243static struct omap_board_config_kernel cm_t3517_config[] __initdata = {
244};
245
246static 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}
254
255static struct omap_board_mux board_mux[] __initdata = {
256	/* GPIO186 - Green LED */
257	OMAP3_MUX(SYS_CLKOUT2, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
258	/* RTC GPIOs: IO, WR#, RD#, CS# */
259	OMAP3_MUX(MCBSP4_DR, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
260	OMAP3_MUX(MCBSP4_DX, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
261	OMAP3_MUX(MCBSP_CLKS, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
262	OMAP3_MUX(UART3_CTS_RCTX, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
263	/* HSUSB1 RESET */
264	OMAP3_MUX(UART2_TX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
265	/* HSUSB2 RESET */
266	OMAP3_MUX(UART2_RX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
267	/* CM-T3517 USB HUB nRESET */
268	OMAP3_MUX(MCBSP4_CLKX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
269
270	{ .reg_offset = OMAP_MUX_TERMINATOR },
271};
272
273static void __init cm_t3517_init(void)
274{
275	omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
276	omap_serial_init();
277	cm_t3517_init_leds();
278	cm_t3517_init_nand();
279	cm_t3517_init_rtc();
280	cm_t3517_init_usbh();
281	cm_t3517_init_hecc();
282}
283
284MACHINE_START(CM_T3517, "Compulab CM-T3517")
285	.boot_params	= 0x80000100,
286	.map_io		= omap3_map_io,
287	.reserve        = omap_reserve,
288	.init_irq	= cm_t3517_init_irq,
289	.init_machine	= cm_t3517_init,
290	.timer		= &omap_timer,
291MACHINE_END
292