ar71xx: add ew-balin platform from Embedded Wireless

Add the Embedded Wireless "Balin" platform
 SoC: QCA AR9344 or AR9350
 RAM: DDR2-RAM 64MBytes
 Flash: SPI-NOR 16MBytes
 WLAN: 2 x 2 MIMO 2.4 & 5 GHz IEEE802.11 a/b/g/n
 Ethernet: 3 x 10/100 Mb/s
 USB: 1 x USB2.0 Host/Device bootstrap-pin at power-up
 PCI-Express: 1 x lane PCIe 1.2
 UART: 1 x Normal, 1 x High-Speed
 JTAG: 1 x EJTAG
 GPIO: 10 x Input/Output multiplexed

The module comes already with the current vanilla OpenWrt firmware.
To update, use "sysupgrade" image directly in vendor firmware.

Signed-off-by: Catrinel Catrinescu <cc@80211.de>

4 files changed, 123 insertions, 0 deletions

diff --git a/target/linux/ar71xx/files/arch/mips/ath79/Kconfig.openwrt b/target/linux/ar71xx/files/arch/mips/ath79/Kconfig.openwrt
index caaaf97792..ce54f1d4bb 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/Kconfig.openwrt
+++ b/target/linux/ar71xx/files/arch/mips/ath79/Kconfig.openwrt
@@ -711,6 +711,17 @@ config ATH79_MACH_ESR900
 	select ATH79_DEV_WMAC
 	select ATH79_NVRAM
 
+config ATH79_MACH_EW_BALIN
+	bool "embedded wireless Balin Platform support"
+	select SOC_AR934X
+	select ATH79_DEV_M25P80
+	select ATH79_DEV_GPIO_BUTTONS
+	select ATH79_DEV_LEDS_GPIO
+	select ATH79_DEV_WMAC
+	select ATH79_DEV_ETH
+	select ATH79_DEV_USB
+	select ATH79_DEV_AP9X_PCI if PCI
+
 config ATH79_MACH_EW_DORIN
 	bool "embedded wireless Dorin Platform support"
 	select SOC_AR933X
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/Makefile b/target/linux/ar71xx/files/arch/mips/ath79/Makefile
index e9f4d9852b..d09762da40 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/Makefile
+++ b/target/linux/ar71xx/files/arch/mips/ath79/Makefile
@@ -116,6 +116,7 @@ obj-$(CONFIG_ATH79_MACH_ENS202EXT)		+= mach-ens202ext.o
 obj-$(CONFIG_ATH79_MACH_EPG5000)		+= mach-epg5000.o
 obj-$(CONFIG_ATH79_MACH_ESR1750)		+= mach-esr1750.o
 obj-$(CONFIG_ATH79_MACH_ESR900)			+= mach-esr900.o
+obj-$(CONFIG_ATH79_MACH_EW_BALIN)		+= mach-ew-balin.o
 obj-$(CONFIG_ATH79_MACH_EW_DORIN)		+= mach-ew-dorin.o
 obj-$(CONFIG_ATH79_MACH_F9K1115V2)		+= mach-f9k1115v2.o
 obj-$(CONFIG_ATH79_MACH_FRITZ300E)		+= mach-fritz300e.o
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-ew-balin.c b/target/linux/ar71xx/files/arch/mips/ath79/mach-ew-balin.c
new file mode 100644
index 0000000000..2e82ffdaa1
--- /dev/null
+++ b/target/linux/ar71xx/files/arch/mips/ath79/mach-ew-balin.c
@@ -0,0 +1,110 @@
+/*
+ * EW Balin board support
+ * (based on Atheros DB120 reference board support)
+ *
+ * Copyright (c) 2011 Qualcomm Atheros
+ * Copyright (c) 2011-2012 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (C) 2017 Embedded Wireless GmbH    www.80211.de
+ *
+ * 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/phy.h>
+#include <linux/platform_device.h>
+#include <linux/ath9k_platform.h>
+#include <linux/ar8216_platform.h>
+
+#include <asm/mach-ath79/ar71xx_regs.h>
+
+#include "common.h"
+#include "dev-ap9x-pci.h"
+#include "dev-eth.h"
+#include "dev-gpio-buttons.h"
+#include "dev-leds-gpio.h"
+#include "dev-m25p80.h"
+#include "dev-spi.h"
+#include "dev-usb.h"
+#include "dev-wmac.h"
+#include "machtypes.h"
+#include "pci.h"
+
+#define BALIN_GPIO_LED_STATUS	14
+
+#define BALIN_GPIO_BTN_WPS		18
+
+#define BALIN_KEYS_POLL_INTERVAL	20	/* msecs */
+#define BALIN_KEYS_DEBOUNCE_INTERVAL	(3 * BALIN_KEYS_POLL_INTERVAL)
+
+#define BALIN_CALDATA_OFFSET		0x1000
+#define BALIN_WMAC_MAC_OFFSET		(BALIN_CALDATA_OFFSET + 0x02)
+
+static struct gpio_led balin_leds_gpio[] __initdata = {
+	{
+		.name		= "balin:green:status",
+		.gpio		= BALIN_GPIO_LED_STATUS,
+		.active_low	= 1,
+	},
+};
+
+static struct gpio_keys_button balin_gpio_keys[] __initdata = {
+	{
+		.desc		= "WPS button",
+		.type		= EV_KEY,
+		.code		= KEY_WPS_BUTTON,
+		.debounce_interval = BALIN_KEYS_DEBOUNCE_INTERVAL,
+		.gpio		= BALIN_GPIO_BTN_WPS,
+		.active_low	= 0,
+	},
+};
+
+
+static void __init balin_setup(void)
+{
+	u8 *art = (u8 *) KSEG1ADDR(0x1fff0000);
+	static u8 mac[6];
+
+	ath79_register_m25p80(NULL);
+
+	ath79_register_leds_gpio(-1, ARRAY_SIZE(balin_leds_gpio),
+				 balin_leds_gpio);
+
+	ath79_register_gpio_keys_polled(-1, BALIN_KEYS_POLL_INTERVAL,
+					ARRAY_SIZE(balin_gpio_keys),
+					balin_gpio_keys);
+
+	ath79_register_usb();
+
+	ath79_register_wmac(art + BALIN_CALDATA_OFFSET, NULL);
+
+	ath79_register_pci();
+
+	ath79_setup_ar934x_eth_cfg(AR934X_ETH_CFG_RGMII_GMAC0 |
+				   AR934X_ETH_CFG_SW_ONLY_MODE);
+
+	ath79_register_mdio(1, 0x0);
+
+	/* GMAC1 is connected to the internal switch */
+	memcpy(mac, art + BALIN_WMAC_MAC_OFFSET, sizeof(mac));
+	mac[3] |= 0x40;
+	ath79_init_mac(ath79_eth1_data.mac_addr, mac, 0);
+	ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_GMII;
+	ath79_eth1_data.speed = SPEED_1000;
+	ath79_eth1_data.duplex = DUPLEX_FULL;
+
+	ath79_register_eth(1);
+}
+
+MIPS_MACHINE(ATH79_MACH_EW_BALIN, "EW-BALIN", "EmbWir-Balin",
+	     balin_setup);
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h b/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h
index 394be00c99..4093c8b76d 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h
+++ b/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h
@@ -107,6 +107,7 @@ enum ath79_mach_type {
 	ATH79_MACH_EPG5000,			/* EnGenius EPG5000 */
 	ATH79_MACH_ESR1750,			/* EnGenius ESR1750 */
 	ATH79_MACH_ESR900,			/* EnGenius ESR900 */
+	ATH79_MACH_EW_BALIN,			/* embedded wireless Balin Platform */
 	ATH79_MACH_EW_DORIN,			/* embedded wireless Dorin Platform */
 	ATH79_MACH_EW_DORIN_ROUTER,		/* embedded wireless Dorin Router Platform */
 	ATH79_MACH_F9K1115V2,			/* Belkin AC1750DB */