Merge branch 'linus' into release
[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/irqs.h>
27 #include <mach/hardware.h>
28 #include <mach/common.h>
29 #include <mach/imx-uart.h>
30 #include <mach/irqs.h>
31 #ifdef CONFIG_I2C_IMX
32 #include <mach/i2c.h>
33 #endif
34 #include <mach/iomux.h>
35 #include "devices.h"
36
37 /*
38  * UARTs platform data
39  */
40 static int mxc_uart1_pins[] = {
41         PC9_PF_UART1_CTS,
42         PC10_PF_UART1_RTS,
43         PC11_PF_UART1_TXD,
44         PC12_PF_UART1_RXD,
45 };
46
47 static int uart1_mxc_init(struct platform_device *pdev)
48 {
49         return mxc_gpio_setup_multiple_pins(mxc_uart1_pins,
50                         ARRAY_SIZE(mxc_uart1_pins), "UART1");
51 }
52
53 static int uart1_mxc_exit(struct platform_device *pdev)
54 {
55         mxc_gpio_release_multiple_pins(mxc_uart1_pins,
56                         ARRAY_SIZE(mxc_uart1_pins));
57         return 0;
58 }
59
60 static int mxc_uart2_pins[] = {
61         PB28_PF_UART2_CTS,
62         PB29_PF_UART2_RTS,
63         PB30_PF_UART2_TXD,
64         PB31_PF_UART2_RXD,
65 };
66
67 static int uart2_mxc_init(struct platform_device *pdev)
68 {
69         return mxc_gpio_setup_multiple_pins(mxc_uart2_pins,
70                         ARRAY_SIZE(mxc_uart2_pins), "UART2");
71 }
72
73 static int uart2_mxc_exit(struct platform_device *pdev)
74 {
75         mxc_gpio_release_multiple_pins(mxc_uart2_pins,
76                         ARRAY_SIZE(mxc_uart2_pins));
77         return 0;
78 }
79
80 static struct imxuart_platform_data uart_pdata[] = {
81         {
82                 .init = uart1_mxc_init,
83                 .exit = uart1_mxc_exit,
84                 .flags = IMXUART_HAVE_RTSCTS,
85         }, {
86                 .init = uart2_mxc_init,
87                 .exit = uart2_mxc_exit,
88                 .flags = IMXUART_HAVE_RTSCTS,
89         },
90 };
91
92 /*
93  * Physmap flash
94  */
95
96 static struct physmap_flash_data mx1ads_flash_data = {
97         .width          = 4,            /* bankwidth in bytes */
98 };
99
100 static struct resource flash_resource = {
101         .start  = IMX_CS0_PHYS,
102         .end    = IMX_CS0_PHYS + SZ_32M - 1,
103         .flags  = IORESOURCE_MEM,
104 };
105
106 static struct platform_device flash_device = {
107         .name   = "physmap-flash",
108         .id     = 0,
109         .resource = &flash_resource,
110         .num_resources = 1,
111 };
112
113 /*
114  * I2C
115  */
116
117 #ifdef CONFIG_I2C_IMX
118 static int i2c_pins[] = {
119         PA15_PF_I2C_SDA,
120         PA16_PF_I2C_SCL,
121 };
122
123 static int i2c_init(struct device *dev)
124 {
125         return mxc_gpio_setup_multiple_pins(i2c_pins,
126                         ARRAY_SIZE(i2c_pins), "I2C");
127 }
128
129 static void i2c_exit(struct device *dev)
130 {
131         mxc_gpio_release_multiple_pins(i2c_pins,
132                         ARRAY_SIZE(i2c_pins));
133 }
134
135 static struct pcf857x_platform_data pcf857x_data[] = {
136         {
137                 .gpio_base = 4 * 32,
138         }, {
139                 .gpio_base = 4 * 32 + 16,
140         }
141 };
142
143 static struct imxi2c_platform_data mx1ads_i2c_data = {
144         .bitrate = 100000,
145         .init = i2c_init,
146         .exit = i2c_exit,
147 };
148
149 static struct i2c_board_info mx1ads_i2c_devices[] = {
150         {
151                 I2C_BOARD_INFO("pcf857x", 0x22),
152                 .type = "pcf8575",
153                 .platform_data = &pcf857x_data[0],
154         }, {
155                 I2C_BOARD_INFO("pcf857x", 0x24),
156                 .type = "pcf8575",
157                 .platform_data = &pcf857x_data[1],
158         },
159 };
160 #endif
161
162 /*
163  * Board init
164  */
165 static void __init mx1ads_init(void)
166 {
167         /* UART */
168         mxc_register_device(&imx_uart1_device, &uart_pdata[0]);
169         mxc_register_device(&imx_uart2_device, &uart_pdata[1]);
170
171         /* Physmap flash */
172         mxc_register_device(&flash_device, &mx1ads_flash_data);
173
174         /* I2C */
175 #ifdef CONFIG_I2C_IMX
176         i2c_register_board_info(0, mx1ads_i2c_devices,
177                                 ARRAY_SIZE(mx1ads_i2c_devices));
178
179         mxc_register_device(&imx_i2c_device, &mx1ads_i2c_data);
180 #endif
181 }
182
183 static void __init mx1ads_timer_init(void)
184 {
185         mx1_clocks_init(32000);
186 }
187
188 struct sys_timer mx1ads_timer = {
189         .init   = mx1ads_timer_init,
190 };
191
192 MACHINE_START(MX1ADS, "Freescale MX1ADS")
193         /* Maintainer: Sascha Hauer, Pengutronix */
194         .phys_io        = IMX_IO_PHYS,
195         .io_pg_offst    = (IMX_IO_BASE >> 18) & 0xfffc,
196         .boot_params    = PHYS_OFFSET + 0x100,
197         .map_io         = mxc_map_io,
198         .init_irq       = mxc_init_irq,
199         .timer          = &mx1ads_timer,
200         .init_machine   = mx1ads_init,
201 MACHINE_END
202
203 MACHINE_START(MXLADS, "Freescale MXLADS")
204         .phys_io        = IMX_IO_PHYS,
205         .io_pg_offst    = (IMX_IO_BASE >> 18) & 0xfffc,
206         .boot_params    = PHYS_OFFSET + 0x100,
207         .map_io         = mxc_map_io,
208         .init_irq       = mxc_init_irq,
209         .timer          = &mx1ads_timer,
210         .init_machine   = mx1ads_init,
211 MACHINE_END