arch/arm/mach-mmp/teton_bga.c

   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
  31 static 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
  50 static struct pxa_gpio_platform_data pxa168_gpio_pdata = {
  51         .irq_base       = MMP_GPIO_TO_IRQ(0),
  52 };
  53
  54 static 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
  61 static 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
  66 static 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
  73 static 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
  80 static 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
  93 MACHINE_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,
 100 MACHINE_END