v4.19.13 snapshot.
diff --git a/arch/mips/ath79/mach-pb44.c b/arch/mips/ath79/mach-pb44.c
new file mode 100644
index 0000000..75fb96c
--- /dev/null
+++ b/arch/mips/ath79/mach-pb44.c
@@ -0,0 +1,128 @@
+/*
+ * Atheros PB44 reference board support
+ *
+ * Copyright (C) 2009-2010 Gabor Juhos <juhosg@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/i2c.h>
+#include <linux/gpio/machine.h>
+#include <linux/platform_data/pcf857x.h>
+
+#include "machtypes.h"
+#include "dev-gpio-buttons.h"
+#include "dev-leds-gpio.h"
+#include "dev-spi.h"
+#include "dev-usb.h"
+#include "pci.h"
+
+#define PB44_GPIO_I2C_SCL 0
+#define PB44_GPIO_I2C_SDA 1
+
+#define PB44_GPIO_EXP_BASE 16
+#define PB44_GPIO_SW_RESET (PB44_GPIO_EXP_BASE + 6)
+#define PB44_GPIO_SW_JUMP (PB44_GPIO_EXP_BASE + 8)
+#define PB44_GPIO_LED_JUMP1 (PB44_GPIO_EXP_BASE + 9)
+#define PB44_GPIO_LED_JUMP2 (PB44_GPIO_EXP_BASE + 10)
+
+#define PB44_KEYS_POLL_INTERVAL 20 /* msecs */
+#define PB44_KEYS_DEBOUNCE_INTERVAL (3 * PB44_KEYS_POLL_INTERVAL)
+
+static struct gpiod_lookup_table pb44_i2c_gpiod_table = {
+ .dev_id = "i2c-gpio.0",
+ .table = {
+ GPIO_LOOKUP_IDX("ath79-gpio", PB44_GPIO_I2C_SDA,
+ NULL, 0, GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
+ GPIO_LOOKUP_IDX("ath79-gpio", PB44_GPIO_I2C_SCL,
+ NULL, 1, GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
+ },
+};
+
+static struct platform_device pb44_i2c_gpio_device = {
+ .name = "i2c-gpio",
+ .id = 0,
+ .dev = {
+ .platform_data = NULL,
+ }
+};
+
+static struct pcf857x_platform_data pb44_pcf857x_data = {
+ .gpio_base = PB44_GPIO_EXP_BASE,
+};
+
+static struct i2c_board_info pb44_i2c_board_info[] __initdata = {
+ {
+ I2C_BOARD_INFO("pcf8575", 0x20),
+ .platform_data = &pb44_pcf857x_data,
+ },
+};
+
+static struct gpio_led pb44_leds_gpio[] __initdata = {
+ {
+ .name = "pb44:amber:jump1",
+ .gpio = PB44_GPIO_LED_JUMP1,
+ .active_low = 1,
+ }, {
+ .name = "pb44:green:jump2",
+ .gpio = PB44_GPIO_LED_JUMP2,
+ .active_low = 1,
+ },
+};
+
+static struct gpio_keys_button pb44_gpio_keys[] __initdata = {
+ {
+ .desc = "soft_reset",
+ .type = EV_KEY,
+ .code = KEY_RESTART,
+ .debounce_interval = PB44_KEYS_DEBOUNCE_INTERVAL,
+ .gpio = PB44_GPIO_SW_RESET,
+ .active_low = 1,
+ } , {
+ .desc = "jumpstart",
+ .type = EV_KEY,
+ .code = KEY_WPS_BUTTON,
+ .debounce_interval = PB44_KEYS_DEBOUNCE_INTERVAL,
+ .gpio = PB44_GPIO_SW_JUMP,
+ .active_low = 1,
+ }
+};
+
+static struct spi_board_info pb44_spi_info[] = {
+ {
+ .bus_num = 0,
+ .chip_select = 0,
+ .max_speed_hz = 25000000,
+ .modalias = "m25p64",
+ },
+};
+
+static struct ath79_spi_platform_data pb44_spi_data = {
+ .bus_num = 0,
+ .num_chipselect = 1,
+};
+
+static void __init pb44_init(void)
+{
+ gpiod_add_lookup_table(&pb44_i2c_gpiod_table);
+ i2c_register_board_info(0, pb44_i2c_board_info,
+ ARRAY_SIZE(pb44_i2c_board_info));
+ platform_device_register(&pb44_i2c_gpio_device);
+
+ ath79_register_leds_gpio(-1, ARRAY_SIZE(pb44_leds_gpio),
+ pb44_leds_gpio);
+ ath79_register_gpio_keys_polled(-1, PB44_KEYS_POLL_INTERVAL,
+ ARRAY_SIZE(pb44_gpio_keys),
+ pb44_gpio_keys);
+ ath79_register_spi(&pb44_spi_data, pb44_spi_info,
+ ARRAY_SIZE(pb44_spi_info));
+ ath79_register_usb();
+ ath79_register_pci();
+}
+
+MIPS_MACHINE(ATH79_MACH_PB44, "PB44", "Atheros PB44 reference board",
+ pb44_init);