2 * Copyright (C) 2008 Valentin Longchamp, EPFL Mobots group
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.
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.
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
19 #include <linux/gpio.h>
20 #include <linux/init.h>
21 #include <linux/interrupt.h>
22 #include <linux/memory.h>
23 #include <linux/mtd/physmap.h>
24 #include <linux/mtd/partitions.h>
25 #include <linux/platform_device.h>
26 #include <linux/types.h>
28 #include <asm/mach-types.h>
29 #include <asm/mach/arch.h>
30 #include <asm/mach/time.h>
31 #include <asm/mach/map.h>
32 #include <mach/board-mx31moboard.h>
33 #include <mach/common.h>
34 #include <mach/hardware.h>
35 #include <mach/imx-uart.h>
36 #include <mach/iomux-mx3.h>
42 static unsigned int moboard_pins
[] = {
44 MX31_PIN_CTS1__CTS1
, MX31_PIN_RTS1__RTS1
,
45 MX31_PIN_TXD1__TXD1
, MX31_PIN_RXD1__RXD1
,
47 MX31_PIN_PC_RST__CTS5
, MX31_PIN_PC_VS2__RTS5
,
48 MX31_PIN_PC_BVD2__TXD5
, MX31_PIN_PC_BVD1__RXD5
,
50 MX31_PIN_I2C_DAT__I2C1_SDA
, MX31_PIN_I2C_CLK__I2C1_SCL
,
52 MX31_PIN_DCD_DTE1__I2C2_SDA
, MX31_PIN_RI_DTE1__I2C2_SCL
,
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
,
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
,
72 static struct physmap_flash_data mx31moboard_flash_data
= {
76 static struct resource mx31moboard_flash_resource
= {
79 .flags
= IORESOURCE_MEM
,
82 static struct platform_device mx31moboard_flash
= {
83 .name
= "physmap-flash",
86 .platform_data
= &mx31moboard_flash_data
,
88 .resource
= &mx31moboard_flash_resource
,
92 static struct imxuart_platform_data uart_pdata
= {
93 .flags
= IMXUART_HAVE_RTSCTS
,
96 static struct imxi2c_platform_data moboard_i2c0_pdata
= {
100 static struct imxi2c_platform_data moboard_i2c1_pdata
= {
104 #define SDHC1_CD IOMUX_TO_GPIO(MX31_PIN_ATA_CS0)
105 #define SDHC1_WP IOMUX_TO_GPIO(MX31_PIN_ATA_CS1)
107 static int moboard_sdhc1_get_ro(struct device
*dev
)
109 return gpio_get_value(SDHC1_WP
);
112 static int moboard_sdhc1_init(struct device
*dev
, irq_handler_t detect_irq
,
117 ret
= gpio_request(SDHC1_CD
, "sdhc-detect");
121 gpio_direction_input(SDHC1_CD
);
123 ret
= gpio_request(SDHC1_WP
, "sdhc-wp");
126 gpio_direction_input(SDHC1_WP
);
128 ret
= request_irq(gpio_to_irq(SDHC1_CD
), detect_irq
,
129 IRQF_TRIGGER_RISING
| IRQF_TRIGGER_FALLING
,
130 "sdhc1-card-detect", data
);
132 goto err_gpio_free_2
;
144 static void moboard_sdhc1_exit(struct device
*dev
, void *data
)
146 free_irq(gpio_to_irq(SDHC1_CD
), data
);
151 static struct imxmmc_platform_data sdhc1_pdata
= {
152 .get_ro
= moboard_sdhc1_get_ro
,
153 .init
= moboard_sdhc1_init
,
154 .exit
= moboard_sdhc1_exit
,
157 static struct platform_device
*devices
[] __initdata
= {
161 static int mx31moboard_baseboard
;
162 core_param(mx31moboard_baseboard
, mx31moboard_baseboard
, int, 0444);
165 * Board specific initialization.
167 static void __init
mxc_board_init(void)
169 mxc_iomux_setup_multiple_pins(moboard_pins
, ARRAY_SIZE(moboard_pins
),
172 platform_add_devices(devices
, ARRAY_SIZE(devices
));
174 mxc_register_device(&mxc_uart_device0
, &uart_pdata
);
175 mxc_register_device(&mxc_uart_device4
, &uart_pdata
);
177 mxc_register_device(&mxc_i2c_device0
, &moboard_i2c0_pdata
);
178 mxc_register_device(&mxc_i2c_device1
, &moboard_i2c1_pdata
);
180 mxc_register_device(&mxcsdhc_device0
, &sdhc1_pdata
);
182 switch (mx31moboard_baseboard
) {
186 mx31moboard_devboard_init();
189 mx31moboard_marxbot_init();
192 printk(KERN_ERR
"Illegal mx31moboard_baseboard type %d\n",
193 mx31moboard_baseboard
);
197 static void __init
mx31moboard_timer_init(void)
199 mx31_clocks_init(26000000);
202 struct sys_timer mx31moboard_timer
= {
203 .init
= mx31moboard_timer_init
,
206 MACHINE_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,
211 .map_io
= mx31_map_io
,
212 .init_irq
= mxc_init_irq
,
213 .init_machine
= mxc_board_init
,
214 .timer
= &mx31moboard_timer
,