Merge branch 'for-rmk' of git://git.pengutronix.de/git/imx/linux-2.6 into devel
[linux-2.6] / arch / arm / mach-mx1 / mx1ads.c
1 /*
2  * arch/arm/mach-imx/mx1ads.c
3  *
4  * Initially based on:
5  *      linux-2.6.7-imx/arch/arm/mach-imx/scb9328.c
6  *      Copyright (c) 2004 Sascha Hauer <sascha@saschahauer.de>
7  *
8  * 2004 (c) MontaVista Software, Inc.
9  *
10  * This file is licensed under the terms of the GNU General Public
11  * License version 2. This program is licensed "as is" without any
12  * warranty of any kind, whether express or implied.
13  */
14
15 #include <linux/kernel.h>
16 #include <linux/init.h>
17 #include <linux/platform_device.h>
18 #include <linux/mtd/physmap.h>
19 #include <linux/i2c.h>
20 #include <linux/i2c/pcf857x.h>
21
22 #include <asm/mach-types.h>
23 #include <asm/mach/arch.h>
24 #include <asm/mach/time.h>
25
26 #include <mach/hardware.h>
27 #include <mach/common.h>
28 #include <mach/imx-uart.h>
29 #include <mach/irqs.h>
30 #ifdef CONFIG_I2C_IMX
31 #include <mach/i2c.h>
32 #endif
33 #include <mach/iomux.h>
34 #include "devices.h"
35
36 /*
37  * UARTs platform data
38  */
39 static int mxc_uart1_pins[] = {
40         PC9_PF_UART1_CTS,
41         PC10_PF_UART1_RTS,
42         PC11_PF_UART1_TXD,
43         PC12_PF_UART1_RXD,
44 };
45
46 static int uart1_mxc_init(struct platform_device *pdev)
47 {
48         return mxc_gpio_setup_multiple_pins(mxc_uart1_pins,
49                         ARRAY_SIZE(mxc_uart1_pins), "UART1");
50 }
51
52 static int uart1_mxc_exit(struct platform_device *pdev)
53 {
54         mxc_gpio_release_multiple_pins(mxc_uart1_pins,
55                         ARRAY_SIZE(mxc_uart1_pins));
56         return 0;
57 }
58
59 static int mxc_uart2_pins[] = {
60         PB28_PF_UART2_CTS,
61         PB29_PF_UART2_RTS,
62         PB30_PF_UART2_TXD,
63         PB31_PF_UART2_RXD,
64 };
65
66 static int uart2_mxc_init(struct platform_device *pdev)
67 {
68         return mxc_gpio_setup_multiple_pins(mxc_uart2_pins,
69                         ARRAY_SIZE(mxc_uart2_pins), "UART2");
70 }
71
72 static int uart2_mxc_exit(struct platform_device *pdev)
73 {
74         mxc_gpio_release_multiple_pins(mxc_uart2_pins,
75                         ARRAY_SIZE(mxc_uart2_pins));
76         return 0;
77 }
78
79 static struct imxuart_platform_data uart_pdata[] = {
80         {
81                 .init = uart1_mxc_init,
82                 .exit = uart1_mxc_exit,
83                 .flags = IMXUART_HAVE_RTSCTS,
84         }, {
85                 .init = uart2_mxc_init,
86                 .exit = uart2_mxc_exit,
87                 .flags = IMXUART_HAVE_RTSCTS,
88         },
89 };
90
91 /*
92  * Physmap flash
93  */
94
95 static struct physmap_flash_data mx1ads_flash_data = {
96         .width          = 4,            /* bankwidth in bytes */
97 };
98
99 static struct resource flash_resource = {
100         .start  = IMX_CS0_PHYS,
101         .end    = IMX_CS0_PHYS + SZ_32M - 1,
102         .flags  = IORESOURCE_MEM,
103 };
104
105 static struct platform_device flash_device = {
106         .name   = "physmap-flash",
107         .id     = 0,
108         .resource = &flash_resource,
109         .num_resources = 1,
110 };
111
112 /*
113  * I2C
114  */
115
116 #ifdef CONFIG_I2C_IMX
117 static int i2c_pins[] = {
118         PA15_PF_I2C_SDA,
119         PA16_PF_I2C_SCL,
120 };
121
122 static int i2c_init(struct device *dev)
123 {
124         return mxc_gpio_setup_multiple_pins(i2c_pins,
125                         ARRAY_SIZE(i2c_pins), "I2C");
126 }
127
128 static void i2c_exit(struct device *dev)
129 {
130         mxc_gpio_release_multiple_pins(i2c_pins,
131                         ARRAY_SIZE(i2c_pins));
132 }
133
134 static struct pcf857x_platform_data pcf857x_data[] = {
135         {
136                 .gpio_base = 4 * 32,
137         }, {
138                 .gpio_base = 4 * 32 + 16,
139         }
140 };
141
142 static struct imxi2c_platform_data mx1ads_i2c_data = {
143         .bitrate = 100000,
144         .init = i2c_init,
145         .exit = i2c_exit,
146 };
147
148 static struct i2c_board_info mx1ads_i2c_devices[] = {
149         {
150                 I2C_BOARD_INFO("pcf857x", 0x22),
151                 .type = "pcf8575",
152                 .platform_data = &pcf857x_data[0],
153         }, {
154                 I2C_BOARD_INFO("pcf857x", 0x24),
155                 .type = "pcf8575",
156                 .platform_data = &pcf857x_data[1],
157         },
158 };
159 #endif
160
161 /*
162  * Board init
163  */
164 static void __init mx1ads_init(void)
165 {
166         /* UART */
167         mxc_register_device(&imx_uart1_device, &uart_pdata[0]);
168         mxc_register_device(&imx_uart2_device, &uart_pdata[1]);
169
170         /* Physmap flash */
171         mxc_register_device(&flash_device, &mx1ads_flash_data);
172
173         /* I2C */
174 #ifdef CONFIG_I2C_IMX
175         i2c_register_board_info(0, mx1ads_i2c_devices,
176                                 ARRAY_SIZE(mx1ads_i2c_devices));
177
178         mxc_register_device(&imx_i2c_device, &mx1ads_i2c_data);
179 #endif
180 }
181
182 static void __init mx1ads_timer_init(void)
183 {
184         mx1_clocks_init(32000);
185 }
186
187 struct sys_timer mx1ads_timer = {
188         .init   = mx1ads_timer_init,
189 };
190
191 MACHINE_START(MX1ADS, "Freescale MX1ADS")
192         /* Maintainer: Sascha Hauer, Pengutronix */
193         .phys_io        = IMX_IO_PHYS,
194         .io_pg_offst    = (IMX_IO_BASE >> 18) & 0xfffc,
195         .boot_params    = PHYS_OFFSET + 0x100,
196         .map_io         = mxc_map_io,
197         .init_irq       = mxc_init_irq,
198         .timer          = &mx1ads_timer,
199         .init_machine   = mx1ads_init,
200 MACHINE_END
201
202 MACHINE_START(MXLADS, "Freescale MXLADS")
203         .phys_io        = IMX_IO_PHYS,
204         .io_pg_offst    = (IMX_IO_BASE >> 18) & 0xfffc,
205         .boot_params    = PHYS_OFFSET + 0x100,
206         .map_io         = mxc_map_io,
207         .init_irq       = mxc_init_irq,
208         .timer          = &mx1ads_timer,
209         .init_machine   = mx1ads_init,
210 MACHINE_END