arch/arm/mach-mmp/teton_bga.c

   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
  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