1 /*
2 * linux/arch/arm/mach-mmp/teton_bga.c
3 *
4 * Support for the Marvell PXA168 Teton BGA Development Platform.
5 *
6 * Author: Mark F. Brown <mark.brown314@gmail.com>
7 *
8 * This code is based on aspenite.c
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * publishhed by the Free Software Foundation.
13 */
14
15 #include <linux/init.h>
16 #include <linux/kernel.h>
17 #include <linux/platform_device.h>
18 #include <linux/gpio.h>
19 #include <linux/input.h>
20 #include <plat/pxa27x_keypad.h>
21 #include <linux/i2c.h>
22
23 #include <asm/mach-types.h>
24 #include <asm/mach/arch.h>
25 #include <mach/addr-map.h>
26 #include <mach/mfp-pxa168.h>
27 #include <mach/pxa168.h>
28 #include <mach/teton_bga.h>
29
30 #include "common.h"
31
32 static unsigned long teton_bga_pin_config[] __initdata = {
33 /* UART1 */
34 GPIO107_UART1_TXD,
35 GPIO108_UART1_RXD,
36
37 /* Keypad */
38 GPIO109_KP_MKIN1,
39 GPIO110_KP_MKIN0,
40 GPIO111_KP_MKOUT7,
41 GPIO112_KP_MKOUT6,
42
43 /* I2C Bus */
44 GPIO105_CI2C_SDA,
45 GPIO106_CI2C_SCL,
46
47 /* RTC */
48 GPIO78_GPIO,
49 };
50
51 static unsigned int teton_bga_matrix_key_map[] = {
52 KEY(0, 6, KEY_ESC),
53 KEY(0, 7, KEY_ENTER),
54 KEY(1, 6, KEY_LEFT),
55 KEY(1, 7, KEY_RIGHT),
56 };
57
58 static struct pxa27x_keypad_platform_data teton_bga_keypad_info __initdata = {
59 .matrix_key_rows = 2,
60 .matrix_key_cols = 8,
61 .matrix_key_map = teton_bga_matrix_key_map,
62 .matrix_key_map_size = ARRAY_SIZE(teton_bga_matrix_key_map),
63 .debounce_interval = 30,
64 };
65
66 static struct i2c_board_info teton_bga_i2c_info[] __initdata = {
67 {
68 I2C_BOARD_INFO("ds1337", 0x68),
69 .irq = MMP_GPIO_TO_IRQ(RTC_INT_GPIO)
70 },
71 };
72
teton_bga_init(void)73 static void __init teton_bga_init(void)
74 {
75 mfp_config(ARRAY_AND_SIZE(teton_bga_pin_config));
76
77 /* on-chip devices */
78 pxa168_add_uart(1);
79 pxa168_add_keypad(&teton_bga_keypad_info);
80 pxa168_add_twsi(0, NULL, ARRAY_AND_SIZE(teton_bga_i2c_info));
81 platform_device_register(&pxa168_device_gpio);
82 }
83
84 MACHINE_START(TETON_BGA, "PXA168-based Teton BGA Development Platform")
85 .map_io = mmp_map_io,
86 .nr_irqs = IRQ_BOARD_START,
87 .init_irq = pxa168_init_irq,
88 .timer = &pxa168_timer,
89 .init_machine = teton_bga_init,
90 .restart = pxa168_restart,
91 MACHINE_END
92