LXR linux/arch/arm/mach-mmp/teton

   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 *  linux/arch/arm/mach-mmp/teton_bga.c
   4 *
   5 *  Support for the Marvell PXA168 Teton BGA Development Platform.
   6 *
   7 *  Author: Mark F. Brown <mark.brown314@gmail.com>
   8 *
   9 *  This code is based on aspenite.c
  10 */
  11
  12#include <linux/init.h>
  13#include <linux/kernel.h>
  14#include <linux/platform_device.h>
  15#include <linux/gpio.h>
  16#include <linux/gpio-pxa.h>
  17#include <linux/input.h>
  18#include <linux/platform_data/keypad-pxa27x.h>
  19#include <linux/i2c.h>
  20
  21#include <asm/mach-types.h>
  22#include <asm/mach/arch.h>
  23#include "addr-map.h"
  24#include "mfp-pxa168.h"
  25#include "pxa168.h"
  26#include "teton_bga.h"
  27#include "irqs.h"
  28
  29#include "common.h"
  30
  31static unsigned long teton_bga_pin_config[] __initdata = {
  32        /* UART1 */
  33        GPIO107_UART1_TXD,
  34        GPIO108_UART1_RXD,
  35
  36        /* Keypad */
  37        GPIO109_KP_MKIN1,
  38        GPIO110_KP_MKIN0,
  39        GPIO111_KP_MKOUT7,
  40        GPIO112_KP_MKOUT6,
  41
  42        /* I2C Bus */
  43        GPIO105_CI2C_SDA,
  44        GPIO106_CI2C_SCL,
  45
  46        /* RTC */
  47        GPIO78_GPIO,
  48};
  49
  50static struct pxa_gpio_platform_data pxa168_gpio_pdata = {
  51        .irq_base       = MMP_GPIO_TO_IRQ(0),
  52};
  53
  54static unsigned int teton_bga_matrix_key_map[] = {
  55        KEY(0, 6, KEY_ESC),
  56        KEY(0, 7, KEY_ENTER),
  57        KEY(1, 6, KEY_LEFT),
  58        KEY(1, 7, KEY_RIGHT),
  59};
  60
  61static struct matrix_keymap_data teton_bga_matrix_keymap_data = {
  62        .keymap                 = teton_bga_matrix_key_map,
  63        .keymap_size            = ARRAY_SIZE(teton_bga_matrix_key_map),
  64};
  65
  66static struct pxa27x_keypad_platform_data teton_bga_keypad_info __initdata = {
  67        .matrix_key_rows        = 2,
  68        .matrix_key_cols        = 8,
  69        .matrix_keymap_data     = &teton_bga_matrix_keymap_data,
  70        .debounce_interval      = 30,
  71};
  72
  73static struct i2c_board_info teton_bga_i2c_info[] __initdata = {
  74        {
  75                I2C_BOARD_INFO("ds1337", 0x68),
  76                .irq = MMP_GPIO_TO_IRQ(RTC_INT_GPIO)
  77        },
  78};
  79
  80static void __init teton_bga_init(void)
  81{
  82        mfp_config(ARRAY_AND_SIZE(teton_bga_pin_config));
  83
  84        /* on-chip devices */
  85        pxa168_add_uart(1);
  86        pxa168_add_keypad(&teton_bga_keypad_info);
  87        pxa168_add_twsi(0, NULL, ARRAY_AND_SIZE(teton_bga_i2c_info));
  88        platform_device_add_data(&pxa168_device_gpio, &pxa168_gpio_pdata,
  89                                 sizeof(struct pxa_gpio_platform_data));
  90        platform_device_register(&pxa168_device_gpio);
  91}
  92
  93MACHINE_START(TETON_BGA, "PXA168-based Teton BGA Development Platform")
  94        .map_io         = mmp_map_io,
  95        .nr_irqs        = MMP_NR_IRQS,
  96        .init_irq       = pxa168_init_irq,
  97        .init_time      = pxa168_timer_init,
  98        .init_machine   = teton_bga_init,
  99        .restart        = pxa168_restart,
 100MACHINE_END
 101