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/gpio-pxa.h>
  20 #include <linux/input.h>
  21 #include <linux/platform_data/keypad-pxa27x.h>
  22 #include <linux/i2c.h>
  23
  24 #include <asm/mach-types.h>
  25 #include <asm/mach/arch.h>
  26 #include "addr-map.h"
  27 #include "mfp-pxa168.h"
  28 #include "pxa168.h"
  29 #include "teton_bga.h"
  30 #include "irqs.h"
  31
  32 #include "common.h"
  33
  34 static unsigned long teton_bga_pin_config[] __initdata = {
  35         /* UART1 */
  36         GPIO107_UART1_TXD,
  37         GPIO108_UART1_RXD,
  38
  39         /* Keypad */
  40         GPIO109_KP_MKIN1,
  41         GPIO110_KP_MKIN0,
  42         GPIO111_KP_MKOUT7,
  43         GPIO112_KP_MKOUT6,
  44
  45         /* I2C Bus */
  46         GPIO105_CI2C_SDA,
  47         GPIO106_CI2C_SCL,
  48
  49         /* RTC */
  50         GPIO78_GPIO,
  51 };
  52
  53 static struct pxa_gpio_platform_data pxa168_gpio_pdata = {
  54         .irq_base       = MMP_GPIO_TO_IRQ(0),
  55 };
  56
  57 static unsigned int teton_bga_matrix_key_map[] = {
  58         KEY(0, 6, KEY_ESC),
  59         KEY(0, 7, KEY_ENTER),
  60         KEY(1, 6, KEY_LEFT),
  61         KEY(1, 7, KEY_RIGHT),
  62 };
  63
  64 static struct matrix_keymap_data teton_bga_matrix_keymap_data = {
  65         .keymap                 = teton_bga_matrix_key_map,
  66         .keymap_size            = ARRAY_SIZE(teton_bga_matrix_key_map),
  67 };
  68
  69 static struct pxa27x_keypad_platform_data teton_bga_keypad_info __initdata = {
  70         .matrix_key_rows        = 2,
  71         .matrix_key_cols        = 8,
  72         .matrix_keymap_data     = &teton_bga_matrix_keymap_data,
  73         .debounce_interval      = 30,
  74 };
  75
  76 static struct i2c_board_info teton_bga_i2c_info[] __initdata = {
  77         {
  78                 I2C_BOARD_INFO("ds1337", 0x68),
  79                 .irq = MMP_GPIO_TO_IRQ(RTC_INT_GPIO)
  80         },
  81 };
  82
  83 static void __init teton_bga_init(void)
  84 {
  85         mfp_config(ARRAY_AND_SIZE(teton_bga_pin_config));
  86
  87         /* on-chip devices */
  88         pxa168_add_uart(1);
  89         pxa168_add_keypad(&teton_bga_keypad_info);
  90         pxa168_add_twsi(0, NULL, ARRAY_AND_SIZE(teton_bga_i2c_info));
  91         platform_device_add_data(&pxa168_device_gpio, &pxa168_gpio_pdata,
  92                                  sizeof(struct pxa_gpio_platform_data));
  93         platform_device_register(&pxa168_device_gpio);
  94 }
  95
  96 MACHINE_START(TETON_BGA, "PXA168-based Teton BGA Development Platform")
  97         .map_io         = mmp_map_io,
  98         .nr_irqs        = MMP_NR_IRQS,
  99         .init_irq       = pxa168_init_irq,
 100         .init_time      = pxa168_timer_init,
 101         .init_machine   = teton_bga_init,
 102         .restart        = pxa168_restart,
 103 MACHINE_END