MIPS: ath79: Add initial support for the Atheros AP121 reference board

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: Kathy Giori <kgiori@qca.qualcomm.com>
Cc: "Luis R.  Rodriguez" <rodrigue@qca.qualcomm.com>
Patchwork: https://patchwork.linux-mips.org/patch/2531/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

4 files changed, 101 insertions, 0 deletions

diff --git a/arch/mips/ath79/Kconfig b/arch/mips/ath79/Kconfig
index c3680c83a102..4a7e0e871e90 100644
--- a/arch/mips/ath79/Kconfig
+++ b/arch/mips/ath79/Kconfig
@@ -2,6 +2,17 @@ if ATH79
 
 menu "Atheros AR71XX/AR724X/AR913X machine selection"
 
+config ATH79_MACH_AP121
+        bool "Atheros AP121 reference board"
+        select SOC_AR933X
+        select ATH79_DEV_GPIO_BUTTONS
+        select ATH79_DEV_LEDS_GPIO
+        select ATH79_DEV_SPI
+        select ATH79_DEV_USB
+        help
+          Say 'Y' here if you want your kernel to support the
+          Atheros AP121 reference board.
+
 config ATH79_MACH_AP81
         bool "Atheros AP81 reference board"
         select SOC_AR913X
diff --git a/arch/mips/ath79/Makefile b/arch/mips/ath79/Makefile
index 57188b61b9ae..8933d18fd0f0 100644
--- a/arch/mips/ath79/Makefile
+++ b/arch/mips/ath79/Makefile
@@ -25,5 +25,6 @@ obj-$(CONFIG_ATH79_DEV_USB)		+= dev-usb.o
 #
 # Machines
 #
+obj-$(CONFIG_ATH79_MACH_AP121)          += mach-ap121.o
 obj-$(CONFIG_ATH79_MACH_AP81)           += mach-ap81.o
 obj-$(CONFIG_ATH79_MACH_PB44)           += mach-pb44.o
diff --git a/arch/mips/ath79/mach-ap121.c b/arch/mips/ath79/mach-ap121.c
new file mode 100644
index 000000000000..353af55fe94d
--- /dev/null
+++ b/arch/mips/ath79/mach-ap121.c
@@ -0,0 +1,88 @@
+/*
+ *  Atheros AP121 board support
+ *
+ *  Copyright (C) 2011 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 "machtypes.h"
+#include "dev-gpio-buttons.h"
+#include "dev-leds-gpio.h"
+#include "dev-spi.h"
+#include "dev-usb.h"
+
+#define AP121_GPIO_LED_WLAN             0
+#define AP121_GPIO_LED_USB              1
+
+#define AP121_GPIO_BTN_JUMPSTART        11
+#define AP121_GPIO_BTN_RESET            12
+
+#define AP121_KEYS_POLL_INTERVAL        20      /* msecs */
+#define AP121_KEYS_DEBOUNCE_INTERVAL    (3 * AP121_KEYS_POLL_INTERVAL)
+
+#define AP121_CAL_DATA_ADDR     0x1fff1000
+
+static struct gpio_led ap121_leds_gpio[] __initdata = {
+        {
+                .name           = "ap121:green:usb",
+                .gpio           = AP121_GPIO_LED_USB,
+                .active_low     = 0,
+        },
+        {
+                .name           = "ap121:green:wlan",
+                .gpio           = AP121_GPIO_LED_WLAN,
+                .active_low     = 0,
+        },
+};
+
+static struct gpio_keys_button ap121_gpio_keys[] __initdata = {
+        {
+                .desc           = "jumpstart button",
+                .type           = EV_KEY,
+                .code           = KEY_WPS_BUTTON,
+                .debounce_interval = AP121_KEYS_DEBOUNCE_INTERVAL,
+                .gpio           = AP121_GPIO_BTN_JUMPSTART,
+                .active_low     = 1,
+        },
+        {
+                .desc           = "reset button",
+                .type           = EV_KEY,
+                .code           = KEY_RESTART,
+                .debounce_interval = AP121_KEYS_DEBOUNCE_INTERVAL,
+                .gpio           = AP121_GPIO_BTN_RESET,
+                .active_low     = 1,
+        }
+};
+
+static struct spi_board_info ap121_spi_info[] = {
+        {
+                .bus_num        = 0,
+                .chip_select    = 0,
+                .max_speed_hz   = 25000000,
+                .modalias       = "mx25l1606e",
+        }
+};
+
+static struct ath79_spi_platform_data ap121_spi_data = {
+        .bus_num        = 0,
+        .num_chipselect = 1,
+};
+
+static void __init ap121_setup(void)
+{
+        ath79_register_leds_gpio(-1, ARRAY_SIZE(ap121_leds_gpio),
+                                 ap121_leds_gpio);
+        ath79_register_gpio_keys_polled(-1, AP121_KEYS_POLL_INTERVAL,
+                                        ARRAY_SIZE(ap121_gpio_keys),
+                                        ap121_gpio_keys);
+
+        ath79_register_spi(&ap121_spi_data, ap121_spi_info,
+                           ARRAY_SIZE(ap121_spi_info));
+        ath79_register_usb();
+}
+
+MIPS_MACHINE(ATH79_MACH_AP121, "AP121", "Atheros AP121 reference board",
+             ap121_setup);
diff --git a/arch/mips/ath79/machtypes.h b/arch/mips/ath79/machtypes.h
index 3940fe470b2d..6e28d51c93d5 100644
--- a/arch/mips/ath79/machtypes.h
+++ b/arch/mips/ath79/machtypes.h
@@ -16,6 +16,7 @@
 
 enum ath79_mach_type {
         ATH79_MACH_GENERIC = 0,
+        ATH79_MACH_AP121,               /* Atheros AP121 reference board */
         ATH79_MACH_AP81,                /* Atheros AP81 reference board */
         ATH79_MACH_PB44,                /* Atheros PB44 reference board */
 };