1 /*
2 * arch/arm/mach-imx/mach-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/i2c.h>
16 #include <linux/i2c/pcf857x.h>
17 #include <linux/init.h>
18 #include <linux/kernel.h>
19 #include <linux/platform_device.h>
20 #include <linux/mtd/physmap.h>
21
22 #include <asm/mach-types.h>
23 #include <asm/mach/arch.h>
24 #include <asm/mach/time.h>
25
26 #include <mach/common.h>
27 #include <mach/hardware.h>
28 #include <mach/iomux-mx1.h>
29 #include <mach/irqs.h>
30
31 #include "devices-imx1.h"
32
33 static const int mx1ads_pins[] __initconst = {
34 /* UART1 */
35 PC9_PF_UART1_CTS,
36 PC10_PF_UART1_RTS,
37 PC11_PF_UART1_TXD,
38 PC12_PF_UART1_RXD,
39 /* UART2 */
40 PB28_PF_UART2_CTS,
41 PB29_PF_UART2_RTS,
42 PB30_PF_UART2_TXD,
43 PB31_PF_UART2_RXD,
44 /* I2C */
45 PA15_PF_I2C_SDA,
46 PA16_PF_I2C_SCL,
47 /* SPI */
48 PC13_PF_SPI1_SPI_RDY,
49 PC14_PF_SPI1_SCLK,
50 PC15_PF_SPI1_SS,
51 PC16_PF_SPI1_MISO,
52 PC17_PF_SPI1_MOSI,
53 };
54
55 /*
56 * UARTs platform data
57 */
58
59 static const struct imxuart_platform_data uart0_pdata __initconst = {
60 .flags = IMXUART_HAVE_RTSCTS,
61 };
62
63 static const struct imxuart_platform_data uart1_pdata __initconst = {
64 .flags = IMXUART_HAVE_RTSCTS,
65 };
66
67 /*
68 * Physmap flash
69 */
70
71 static const struct physmap_flash_data mx1ads_flash_data __initconst = {
72 .width = 4, /* bankwidth in bytes */
73 };
74
75 static const struct resource flash_resource __initconst = {
76 .start = MX1_CS0_PHYS,
77 .end = MX1_CS0_PHYS + SZ_32M - 1,
78 .flags = IORESOURCE_MEM,
79 };
80
81 /*
82 * I2C
83 */
84 static struct pcf857x_platform_data pcf857x_data[] = {
85 {
86 .gpio_base = 4 * 32,
87 }, {
88 .gpio_base = 4 * 32 + 16,
89 }
90 };
91
92 static const struct imxi2c_platform_data mx1ads_i2c_data __initconst = {
93 .bitrate = 100000,
94 };
95
96 static struct i2c_board_info mx1ads_i2c_devices[] = {
97 {
98 I2C_BOARD_INFO("pcf8575", 0x22),
99 .platform_data = &pcf857x_data[0],
100 }, {
101 I2C_BOARD_INFO("pcf8575", 0x24),
102 .platform_data = &pcf857x_data[1],
103 },
104 };
105
106 /*
107 * Board init
108 */
mx1ads_init(void)109 static void __init mx1ads_init(void)
110 {
111 imx1_soc_init();
112
113 mxc_gpio_setup_multiple_pins(mx1ads_pins,
114 ARRAY_SIZE(mx1ads_pins), "mx1ads");
115
116 /* UART */
117 imx1_add_imx_uart0(&uart0_pdata);
118 imx1_add_imx_uart1(&uart1_pdata);
119
120 /* Physmap flash */
121 platform_device_register_resndata(NULL, "physmap-flash", 0,
122 &flash_resource, 1,
123 &mx1ads_flash_data, sizeof(mx1ads_flash_data));
124
125 /* I2C */
126 i2c_register_board_info(0, mx1ads_i2c_devices,
127 ARRAY_SIZE(mx1ads_i2c_devices));
128
129 imx1_add_imx_i2c(&mx1ads_i2c_data);
130 }
131
mx1ads_timer_init(void)132 static void __init mx1ads_timer_init(void)
133 {
134 mx1_clocks_init(32000);
135 }
136
137 struct sys_timer mx1ads_timer = {
138 .init = mx1ads_timer_init,
139 };
140
141 MACHINE_START(MX1ADS, "Freescale MX1ADS")
142 /* Maintainer: Sascha Hauer, Pengutronix */
143 .atag_offset = 0x100,
144 .map_io = mx1_map_io,
145 .init_early = imx1_init_early,
146 .init_irq = mx1_init_irq,
147 .handle_irq = imx1_handle_irq,
148 .timer = &mx1ads_timer,
149 .init_machine = mx1ads_init,
150 .restart = mxc_restart,
151 MACHINE_END
152
153 MACHINE_START(MXLADS, "Freescale MXLADS")
154 .atag_offset = 0x100,
155 .map_io = mx1_map_io,
156 .init_early = imx1_init_early,
157 .init_irq = mx1_init_irq,
158 .handle_irq = imx1_handle_irq,
159 .timer = &mx1ads_timer,
160 .init_machine = mx1ads_init,
161 .restart = mxc_restart,
162 MACHINE_END
163