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Diffstat (limited to 'arch/mips/ath79/mach-pb44.c')
-rw-r--r--arch/mips/ath79/mach-pb44.c56
1 files changed, 56 insertions, 0 deletions
diff --git a/arch/mips/ath79/mach-pb44.c b/arch/mips/ath79/mach-pb44.c
new file mode 100644
index 000000000000..ffc24d7a2552
--- /dev/null
+++ b/arch/mips/ath79/mach-pb44.c
@@ -0,0 +1,56 @@
+/*
+ * 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/i2c-gpio.h>
+#include <linux/i2c/pcf857x.h>
+
+#include "machtypes.h"
+
+#define PB44_GPIO_I2C_SCL 0
+#define PB44_GPIO_I2C_SDA 1
+
+#define PB44_GPIO_EXP_BASE 16
+
+static struct i2c_gpio_platform_data pb44_i2c_gpio_data = {
+ .sda_pin = PB44_GPIO_I2C_SDA,
+ .scl_pin = PB44_GPIO_I2C_SCL,
+};
+
+static struct platform_device pb44_i2c_gpio_device = {
+ .name = "i2c-gpio",
+ .id = 0,
+ .dev = {
+ .platform_data = &pb44_i2c_gpio_data,
+ }
+};
+
+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 void __init pb44_init(void)
+{
+ i2c_register_board_info(0, pb44_i2c_board_info,
+ ARRAY_SIZE(pb44_i2c_board_info));
+ platform_device_register(&pb44_i2c_gpio_device);
+}
+
+MIPS_MACHINE(ATH79_MACH_PB44, "PB44", "Atheros PB44 reference board",
+ pb44_init);