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Valentin Longchamp988d2d42008-11-23 17:35:08 +01001/*
2 * Copyright (C) 2008 Valentin Longchamp, EPFL Mobots group
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 */
18
Valentin Longchamp45b131a2009-04-21 10:24:56 +020019#include <linux/gpio.h>
Valentin Longchamp988d2d42008-11-23 17:35:08 +010020#include <linux/init.h>
Valentin Longchamp45b131a2009-04-21 10:24:56 +020021#include <linux/interrupt.h>
Valentin Longchamp220bbce2009-04-17 15:20:25 +020022#include <linux/memory.h>
Valentin Longchamp988d2d42008-11-23 17:35:08 +010023#include <linux/mtd/physmap.h>
24#include <linux/mtd/partitions.h>
Valentin Longchamp220bbce2009-04-17 15:20:25 +020025#include <linux/platform_device.h>
26#include <linux/types.h>
Valentin Longchamp988d2d42008-11-23 17:35:08 +010027
Valentin Longchamp988d2d42008-11-23 17:35:08 +010028#include <asm/mach-types.h>
29#include <asm/mach/arch.h>
30#include <asm/mach/time.h>
31#include <asm/mach/map.h>
Valentin Longchamp220bbce2009-04-17 15:20:25 +020032#include <mach/board-mx31moboard.h>
Valentin Longchamp988d2d42008-11-23 17:35:08 +010033#include <mach/common.h>
Valentin Longchamp220bbce2009-04-17 15:20:25 +020034#include <mach/hardware.h>
Valentin Longchamp988d2d42008-11-23 17:35:08 +010035#include <mach/imx-uart.h>
36#include <mach/iomux-mx3.h>
Valentin Longchamp4ec6ecc2009-04-21 10:24:22 +020037#include <mach/i2c.h>
Valentin Longchamp45b131a2009-04-21 10:24:56 +020038#include <mach/mmc.h>
Valentin Longchamp988d2d42008-11-23 17:35:08 +010039
40#include "devices.h"
41
Valentin Longchamp220bbce2009-04-17 15:20:25 +020042static unsigned int moboard_pins[] = {
43 /* UART0 */
44 MX31_PIN_CTS1__CTS1, MX31_PIN_RTS1__RTS1,
45 MX31_PIN_TXD1__TXD1, MX31_PIN_RXD1__RXD1,
46 /* UART4 */
47 MX31_PIN_PC_RST__CTS5, MX31_PIN_PC_VS2__RTS5,
48 MX31_PIN_PC_BVD2__TXD5, MX31_PIN_PC_BVD1__RXD5,
Valentin Longchamp56c7a452009-04-22 10:55:50 +020049 /* I2C0 */
50 MX31_PIN_I2C_DAT__I2C1_SDA, MX31_PIN_I2C_CLK__I2C1_SCL,
51 /* I2C1 */
52 MX31_PIN_DCD_DTE1__I2C2_SDA, MX31_PIN_RI_DTE1__I2C2_SCL,
53 /* SDHC1 */
54 MX31_PIN_SD1_DATA3__SD1_DATA3, MX31_PIN_SD1_DATA2__SD1_DATA2,
55 MX31_PIN_SD1_DATA1__SD1_DATA1, MX31_PIN_SD1_DATA0__SD1_DATA0,
56 MX31_PIN_SD1_CLK__SD1_CLK, MX31_PIN_SD1_CMD__SD1_CMD,
57 MX31_PIN_ATA_CS0__GPIO3_26, MX31_PIN_ATA_CS1__GPIO3_27,
58 /* USB OTG */
59 MX31_PIN_USBOTG_DATA0__USBOTG_DATA0,
60 MX31_PIN_USBOTG_DATA1__USBOTG_DATA1,
61 MX31_PIN_USBOTG_DATA2__USBOTG_DATA2,
62 MX31_PIN_USBOTG_DATA3__USBOTG_DATA3,
63 MX31_PIN_USBOTG_DATA4__USBOTG_DATA4,
64 MX31_PIN_USBOTG_DATA5__USBOTG_DATA5,
65 MX31_PIN_USBOTG_DATA6__USBOTG_DATA6,
66 MX31_PIN_USBOTG_DATA7__USBOTG_DATA7,
67 MX31_PIN_USBOTG_CLK__USBOTG_CLK, MX31_PIN_USBOTG_DIR__USBOTG_DIR,
68 MX31_PIN_USBOTG_NXT__USBOTG_NXT, MX31_PIN_USBOTG_STP__USBOTG_STP,
69 MX31_PIN_USB_OC__GPIO1_30,
Valentin Longchamp220bbce2009-04-17 15:20:25 +020070};
71
Valentin Longchamp988d2d42008-11-23 17:35:08 +010072static struct physmap_flash_data mx31moboard_flash_data = {
73 .width = 2,
74};
75
76static struct resource mx31moboard_flash_resource = {
77 .start = 0xa0000000,
78 .end = 0xa1ffffff,
79 .flags = IORESOURCE_MEM,
80};
81
82static struct platform_device mx31moboard_flash = {
83 .name = "physmap-flash",
84 .id = 0,
85 .dev = {
86 .platform_data = &mx31moboard_flash_data,
87 },
88 .resource = &mx31moboard_flash_resource,
89 .num_resources = 1,
90};
91
92static struct imxuart_platform_data uart_pdata = {
93 .flags = IMXUART_HAVE_RTSCTS,
94};
95
Valentin Longchamp4ec6ecc2009-04-21 10:24:22 +020096static struct imxi2c_platform_data moboard_i2c0_pdata = {
97 .bitrate = 400000,
98};
99
100static struct imxi2c_platform_data moboard_i2c1_pdata = {
101 .bitrate = 100000,
102};
103
Valentin Longchamp45b131a2009-04-21 10:24:56 +0200104#define SDHC1_CD IOMUX_TO_GPIO(MX31_PIN_ATA_CS0)
105#define SDHC1_WP IOMUX_TO_GPIO(MX31_PIN_ATA_CS1)
106
107static int moboard_sdhc1_get_ro(struct device *dev)
108{
109 return gpio_get_value(SDHC1_WP);
110}
111
112static int moboard_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
113 void *data)
114{
Sascha Hauer4f163eb2009-05-06 12:55:50 +0200115 int ret;
116
117 ret = gpio_request(SDHC1_CD, "sdhc-detect");
118 if (ret)
119 return ret;
120
121 gpio_direction_input(SDHC1_CD);
122
123 ret = gpio_request(SDHC1_WP, "sdhc-wp");
124 if (ret)
125 goto err_gpio_free;
126 gpio_direction_input(SDHC1_WP);
127
128 ret = request_irq(gpio_to_irq(SDHC1_CD), detect_irq,
Valentin Longchamp45b131a2009-04-21 10:24:56 +0200129 IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
130 "sdhc1-card-detect", data);
Sascha Hauer4f163eb2009-05-06 12:55:50 +0200131 if (ret)
132 goto err_gpio_free_2;
133
134 return 0;
135
136err_gpio_free_2:
137 gpio_free(SDHC1_WP);
138err_gpio_free:
139 gpio_free(SDHC1_CD);
140
141 return ret;
Valentin Longchamp45b131a2009-04-21 10:24:56 +0200142}
143
144static void moboard_sdhc1_exit(struct device *dev, void *data)
145{
146 free_irq(gpio_to_irq(SDHC1_CD), data);
Sascha Hauer4f163eb2009-05-06 12:55:50 +0200147 gpio_free(SDHC1_WP);
148 gpio_free(SDHC1_CD);
Valentin Longchamp45b131a2009-04-21 10:24:56 +0200149}
150
151static struct imxmmc_platform_data sdhc1_pdata = {
152 .get_ro = moboard_sdhc1_get_ro,
153 .init = moboard_sdhc1_init,
154 .exit = moboard_sdhc1_exit,
155};
156
Valentin Longchamp988d2d42008-11-23 17:35:08 +0100157static struct platform_device *devices[] __initdata = {
158 &mx31moboard_flash,
159};
160
Valentin Longchampe00f0b42009-02-16 12:47:51 +0100161static int mx31moboard_baseboard;
162core_param(mx31moboard_baseboard, mx31moboard_baseboard, int, 0444);
163
Valentin Longchamp988d2d42008-11-23 17:35:08 +0100164/*
165 * Board specific initialization.
166 */
167static void __init mxc_board_init(void)
168{
Valentin Longchamp220bbce2009-04-17 15:20:25 +0200169 mxc_iomux_setup_multiple_pins(moboard_pins, ARRAY_SIZE(moboard_pins),
170 "moboard");
171
Valentin Longchamp988d2d42008-11-23 17:35:08 +0100172 platform_add_devices(devices, ARRAY_SIZE(devices));
173
Valentin Longchamp988d2d42008-11-23 17:35:08 +0100174 mxc_register_device(&mxc_uart_device0, &uart_pdata);
Valentin Longchamp988d2d42008-11-23 17:35:08 +0100175 mxc_register_device(&mxc_uart_device4, &uart_pdata);
Valentin Longchampe00f0b42009-02-16 12:47:51 +0100176
Valentin Longchamp4ec6ecc2009-04-21 10:24:22 +0200177 mxc_register_device(&mxc_i2c_device0, &moboard_i2c0_pdata);
178 mxc_register_device(&mxc_i2c_device1, &moboard_i2c1_pdata);
179
Valentin Longchamp45b131a2009-04-21 10:24:56 +0200180 mxc_register_device(&mxcsdhc_device0, &sdhc1_pdata);
181
Valentin Longchampe00f0b42009-02-16 12:47:51 +0100182 switch (mx31moboard_baseboard) {
183 case MX31NOBOARD:
184 break;
185 case MX31DEVBOARD:
186 mx31moboard_devboard_init();
187 break;
188 case MX31MARXBOT:
189 mx31moboard_marxbot_init();
190 break;
191 default:
Valentin Longchamp220bbce2009-04-17 15:20:25 +0200192 printk(KERN_ERR "Illegal mx31moboard_baseboard type %d\n",
193 mx31moboard_baseboard);
Valentin Longchampe00f0b42009-02-16 12:47:51 +0100194 }
Valentin Longchamp988d2d42008-11-23 17:35:08 +0100195}
196
Valentin Longchamp988d2d42008-11-23 17:35:08 +0100197static void __init mx31moboard_timer_init(void)
198{
Sascha Hauer30c730f2009-02-16 14:36:49 +0100199 mx31_clocks_init(26000000);
Valentin Longchamp988d2d42008-11-23 17:35:08 +0100200}
201
202struct sys_timer mx31moboard_timer = {
203 .init = mx31moboard_timer_init,
204};
205
206MACHINE_START(MX31MOBOARD, "EPFL Mobots mx31moboard")
207 /* Maintainer: Valentin Longchamp, EPFL Mobots group */
208 .phys_io = AIPS1_BASE_ADDR,
209 .io_pg_offst = ((AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc,
210 .boot_params = PHYS_OFFSET + 0x100,
Sascha Hauercd4a05f2009-04-02 22:32:10 +0200211 .map_io = mx31_map_io,
Valentin Longchamp988d2d42008-11-23 17:35:08 +0100212 .init_irq = mxc_init_irq,
213 .init_machine = mxc_board_init,
214 .timer = &mx31moboard_timer,
215MACHINE_END
216