MIPS: ath79: add initial support for the Atheros DB120 board

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com>
Cc: linux-mips@linux-mips.org
Cc: mcgrof@infradead.org
Patchwork: https://patchwork.linux-mips.org/patch/3517/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

4 files changed, 148 insertions, 0 deletions

diff --git a/arch/mips/ath79/Kconfig b/arch/mips/ath79/Kconfig
index ea28e89d0a3c..f44feee2d67f 100644
--- a/arch/mips/ath79/Kconfig
+++ b/arch/mips/ath79/Kconfig
@@ -26,6 +26,18 @@ config ATH79_MACH_AP81
           Say 'Y' here if you want your kernel to support the
           Atheros AP81 reference board.
 
+config ATH79_MACH_DB120
+        bool "Atheros DB120 reference board"
+        select SOC_AR934X
+        select ATH79_DEV_GPIO_BUTTONS
+        select ATH79_DEV_LEDS_GPIO
+        select ATH79_DEV_SPI
+        select ATH79_DEV_USB
+        select ATH79_DEV_WMAC
+        help
+          Say 'Y' here if you want your kernel to support the
+          Atheros DB120 reference board.
+
 config ATH79_MACH_PB44
         bool "Atheros PB44 reference board"
         select SOC_AR71XX
diff --git a/arch/mips/ath79/Makefile b/arch/mips/ath79/Makefile
index 221a76a9fb45..2b54d98263f3 100644
--- a/arch/mips/ath79/Makefile
+++ b/arch/mips/ath79/Makefile
@@ -28,5 +28,6 @@ obj-$(CONFIG_ATH79_DEV_WMAC)		+= dev-wmac.o
 #
 obj-$(CONFIG_ATH79_MACH_AP121)          += mach-ap121.o
 obj-$(CONFIG_ATH79_MACH_AP81)           += mach-ap81.o
+obj-$(CONFIG_ATH79_MACH_DB120)          += mach-db120.o
 obj-$(CONFIG_ATH79_MACH_PB44)           += mach-pb44.o
 obj-$(CONFIG_ATH79_MACH_UBNT_XM)        += mach-ubnt-xm.o
diff --git a/arch/mips/ath79/mach-db120.c b/arch/mips/ath79/mach-db120.c
new file mode 100644
index 000000000000..1983e4d2af4b
--- /dev/null
+++ b/arch/mips/ath79/mach-db120.c
@@ -0,0 +1,134 @@
+/*
+ * Atheros DB120 reference board support
+ *
+ * Copyright (c) 2011 Qualcomm Atheros
+ * Copyright (c) 2011 Gabor Juhos <juhosg@openwrt.org>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ */
+
+#include <linux/pci.h>
+#include <linux/ath9k_platform.h>
+
+#include "machtypes.h"
+#include "dev-gpio-buttons.h"
+#include "dev-leds-gpio.h"
+#include "dev-spi.h"
+#include "dev-wmac.h"
+#include "pci.h"
+
+#define DB120_GPIO_LED_WLAN_5G          12
+#define DB120_GPIO_LED_WLAN_2G          13
+#define DB120_GPIO_LED_STATUS           14
+#define DB120_GPIO_LED_WPS              15
+
+#define DB120_GPIO_BTN_WPS              16
+
+#define DB120_KEYS_POLL_INTERVAL        20      /* msecs */
+#define DB120_KEYS_DEBOUNCE_INTERVAL    (3 * DB120_KEYS_POLL_INTERVAL)
+
+#define DB120_WMAC_CALDATA_OFFSET 0x1000
+#define DB120_PCIE_CALDATA_OFFSET 0x5000
+
+static struct gpio_led db120_leds_gpio[] __initdata = {
+        {
+                .name           = "db120:green:status",
+                .gpio           = DB120_GPIO_LED_STATUS,
+                .active_low     = 1,
+        },
+        {
+                .name           = "db120:green:wps",
+                .gpio           = DB120_GPIO_LED_WPS,
+                .active_low     = 1,
+        },
+        {
+                .name           = "db120:green:wlan-5g",
+                .gpio           = DB120_GPIO_LED_WLAN_5G,
+                .active_low     = 1,
+        },
+        {
+                .name           = "db120:green:wlan-2g",
+                .gpio           = DB120_GPIO_LED_WLAN_2G,
+                .active_low     = 1,
+        },
+};
+
+static struct gpio_keys_button db120_gpio_keys[] __initdata = {
+        {
+                .desc           = "WPS button",
+                .type           = EV_KEY,
+                .code           = KEY_WPS_BUTTON,
+                .debounce_interval = DB120_KEYS_DEBOUNCE_INTERVAL,
+                .gpio           = DB120_GPIO_BTN_WPS,
+                .active_low     = 1,
+        },
+};
+
+static struct spi_board_info db120_spi_info[] = {
+        {
+                .bus_num        = 0,
+                .chip_select    = 0,
+                .max_speed_hz   = 25000000,
+                .modalias       = "s25sl064a",
+        }
+};
+
+static struct ath79_spi_platform_data db120_spi_data = {
+        .bus_num        = 0,
+        .num_chipselect = 1,
+};
+
+#ifdef CONFIG_PCI
+static struct ath9k_platform_data db120_ath9k_data;
+
+static int db120_pci_plat_dev_init(struct pci_dev *dev)
+{
+        switch (PCI_SLOT(dev->devfn)) {
+        case 0:
+                dev->dev.platform_data = &db120_ath9k_data;
+                break;
+        }
+
+        return 0;
+}
+
+static void __init db120_pci_init(u8 *eeprom)
+{
+        memcpy(db120_ath9k_data.eeprom_data, eeprom,
+               sizeof(db120_ath9k_data.eeprom_data));
+
+        ath79_pci_set_plat_dev_init(db120_pci_plat_dev_init);
+        ath79_register_pci();
+}
+#else
+static inline void db120_pci_init(void) {}
+#endif /* CONFIG_PCI */
+
+static void __init db120_setup(void)
+{
+        u8 *art = (u8 *) KSEG1ADDR(0x1fff0000);
+
+        ath79_register_leds_gpio(-1, ARRAY_SIZE(db120_leds_gpio),
+                                 db120_leds_gpio);
+        ath79_register_gpio_keys_polled(-1, DB120_KEYS_POLL_INTERVAL,
+                                        ARRAY_SIZE(db120_gpio_keys),
+                                        db120_gpio_keys);
+        ath79_register_spi(&db120_spi_data, db120_spi_info,
+                           ARRAY_SIZE(db120_spi_info));
+        ath79_register_wmac(art + DB120_WMAC_CALDATA_OFFSET);
+        db120_pci_init(art + DB120_PCIE_CALDATA_OFFSET);
+}
+
+MIPS_MACHINE(ATH79_MACH_DB120, "DB120", "Atheros DB120 reference board",
+             db120_setup);
diff --git a/arch/mips/ath79/machtypes.h b/arch/mips/ath79/machtypes.h
index 9a1f3826626e..af92e5c30d66 100644
--- a/arch/mips/ath79/machtypes.h
+++ b/arch/mips/ath79/machtypes.h
@@ -18,6 +18,7 @@ enum ath79_mach_type {
         ATH79_MACH_GENERIC = 0,
         ATH79_MACH_AP121,               /* Atheros AP121 reference board */
         ATH79_MACH_AP81,                /* Atheros AP81 reference board */
+        ATH79_MACH_DB120,               /* Atheros DB120 reference board */
         ATH79_MACH_PB44,                /* Atheros PB44 reference board */
         ATH79_MACH_UBNT_XM,             /* Ubiquiti Networks XM board rev 1.0 */
 };