ar71xx: add support for Cisco Meraki Z1 Cloud Managed Teleworker Gateway

This patch adds support for Cisco's Z1.
Detailed instructions for the flashing the device can
be found in the OpenWrt wiki:
<https://wiki.openwrt.org/toh/meraki/z1>

Signed-off-by: Chris Blake <chrisrblake93@gmail.com>

4 files changed, 178 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 a6f19daa0d..4cefde1ac2 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/Kconfig.openwrt
+++ b/target/linux/ar71xx/files/arch/mips/ath79/Kconfig.openwrt
@@ -1552,6 +1552,18 @@ config ATH79_MACH_MYNET_REXT
 	select ATH79_DEV_WMAC
 	select ATH79_NVRAM
 
+config ATH79_MACH_Z1
+	bool "Meraki Z1 board support"
+	select SOC_AR934X
+	select ATH79_DEV_AP9X_PCI if PCI
+	select ATH79_DEV_ETH
+	select ATH79_DEV_GPIO_BUTTONS
+	select ATH79_DEV_LEDS_GPIO
+	select ATH79_DEV_NFC
+	select ATH79_DEV_USB
+	select ATH79_DEV_WMAC
+	select LEDS_NU801
+
 config ATH79_MACH_ZBT_WE1526
 	bool "Zbtlink ZBT-WE1526 board support"
 	select SOC_QCA953X
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/Makefile b/target/linux/ar71xx/files/arch/mips/ath79/Makefile
index 3222a76660..a0f8d998e2 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/Makefile
+++ b/target/linux/ar71xx/files/arch/mips/ath79/Makefile
@@ -205,6 +205,7 @@ obj-$(CONFIG_ATH79_MACH_WZR_HP_G300NH2)	+= mach-wzr-hp-g300nh2.o
 obj-$(CONFIG_ATH79_MACH_WZR_HP_AG300H)	+= mach-wzr-hp-ag300h.o
 obj-$(CONFIG_ATH79_MACH_WZR_HP_G450H)	+= mach-wzr-hp-g450h.o
 obj-$(CONFIG_ATH79_MACH_WZR_450HP2)	+= mach-wzr-450hp2.o
+obj-$(CONFIG_ATH79_MACH_Z1)		+= mach-z1.o
 obj-$(CONFIG_ATH79_MACH_ZBT_WE1526)	+= mach-zbt-we1526.o
 obj-$(CONFIG_ATH79_MACH_ZCN_1523H)	+= mach-zcn-1523h.o
 obj-$(CONFIG_ATH79_MACH_CARAMBOLA2)	+= mach-carambola2.o
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-z1.c b/target/linux/ar71xx/files/arch/mips/ath79/mach-z1.c
new file mode 100644
index 0000000000..552d646370
--- /dev/null
+++ b/target/linux/ar71xx/files/arch/mips/ath79/mach-z1.c
@@ -0,0 +1,164 @@
+/*
+ *  Cisco Meraki Z1 board support
+ *
+ *  Copyright (C) 2016 Chris Blake <chrisrblake93@gmail.com>
+ *  Copyright (C) 2016 Christian Lamparter <chunkeey@googlemail.com>
+ *
+ *  Based on Cisco Meraki GPL Release r23-20150601 Z1 Device Config
+ *
+ *  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/platform_device.h>
+#include <linux/ath9k_platform.h>
+#include <linux/ar8216_platform.h>
+#include <linux/platform/ar934x_nfc.h>
+
+#include <asm/mach-ath79/ath79.h>
+#include <asm/mach-ath79/ar71xx_regs.h>
+
+#include <linux/leds-nu801.h>
+#include <linux/firmware.h>
+#include <linux/pci.h>
+
+#include "common.h"
+#include "dev-eth.h"
+#include "dev-gpio-buttons.h"
+#include "dev-leds-gpio.h"
+#include "dev-nfc.h"
+#include "dev-usb.h"
+#include "dev-wmac.h"
+#include "dev-ap9x-pci.h"
+#include "machtypes.h"
+
+#define Z1_GPIO_LED_POWER_ORANGE	17
+
+#define Z1_GPIO_NU801_CKI		14
+#define Z1_GPIO_NU801_SDI		15
+
+#define Z1_GPIO_XLNA0			18
+#define Z1_GPIO_XLNA1			19
+
+#define Z1_GPIO_BTN_RESET		12
+#define Z1_KEYS_POLL_INTERVAL		20  /* msecs */
+#define Z1_KEYS_DEBOUNCE_INTERVAL	(3 * Z1_KEYS_POLL_INTERVAL)
+
+#define Z1_ETH_SWITCH_PHY		0
+
+static struct gpio_led Z1_leds_gpio[] __initdata = {
+	{
+		.name = "z1:orange:power",
+		.gpio = Z1_GPIO_LED_POWER_ORANGE,
+		.active_low  = 1,
+	},
+};
+
+static struct gpio_keys_button Z1_gpio_keys[] __initdata = {
+	{
+		.desc = "reset",
+		.type = EV_KEY,
+		.code = KEY_RESTART,
+		.debounce_interval = Z1_KEYS_DEBOUNCE_INTERVAL,
+		.gpio    = Z1_GPIO_BTN_RESET,
+		.active_low  = 1,
+	},
+};
+
+static struct led_nu801_template tricolor_led_template = {
+	.device_name = "z1",
+	.name = "tricolor",
+	.num_leds = 1,
+	.cki = Z1_GPIO_NU801_CKI,
+	.sdi = Z1_GPIO_NU801_SDI,
+	.lei = -1,
+	.ndelay = 500,
+	.init_brightness = {
+		LED_OFF,
+		LED_OFF,
+		LED_OFF,
+	},
+	.default_trigger = "none",
+};
+
+static struct led_nu801_platform_data tricolor_led_data = {
+	.num_controllers = 1,
+	.template = &tricolor_led_template,
+};
+
+static struct platform_device tricolor_leds = {
+	.name = "leds-nu801",
+	.id = -1,
+	.dev.platform_data = &tricolor_led_data,
+};
+
+static struct ar8327_pad_cfg z1_ar8327_pad0_cfg = {
+	.mode = AR8327_PAD_MAC_RGMII,
+	.txclk_delay_en = true,
+	.rxclk_delay_en = true,
+	.txclk_delay_sel = AR8327_CLK_DELAY_SEL1,
+	.rxclk_delay_sel = AR8327_CLK_DELAY_SEL2,
+};
+
+static struct ar8327_platform_data z1_ar8327_data = {
+	.pad0_cfg = &z1_ar8327_pad0_cfg,
+	.port0_cfg = {
+		.force_link = 1,
+		.speed = AR8327_PORT_SPEED_1000,
+		.duplex = 1,
+		.txpause = 1,
+		.rxpause = 1,
+	},
+};
+
+static struct mdio_board_info z1_mdio0_info[] = {
+	{
+		.bus_id = "ag71xx-mdio.0",
+		.phy_addr = Z1_ETH_SWITCH_PHY,
+		.platform_data = &z1_ar8327_data,
+	},
+};
+
+static void __init z1_setup(void)
+{
+	/* NAND */
+	ath79_nfc_set_ecc_mode(AR934X_NFC_ECC_SOFT_BCH);
+	ath79_register_nfc();
+
+	/* Eth Config */
+	ath79_setup_ar934x_eth_cfg(AR934X_ETH_CFG_RGMII_GMAC0 |
+				   AR934X_ETH_CFG_SW_ONLY_MODE);
+
+	/* MDIO Interface */
+	ath79_register_mdio(1, 0x0);
+	ath79_register_mdio(0, 0x0);
+	mdiobus_register_board_info(z1_mdio0_info,
+				    ARRAY_SIZE(z1_mdio0_info));
+
+	/* GMAC0 is connected to an AR8327 switch */
+	ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
+	ath79_eth0_data.phy_mask = BIT(Z1_ETH_SWITCH_PHY);
+	ath79_eth0_data.mii_bus_dev = &ath79_mdio0_device.dev;
+	ath79_eth0_pll_data.pll_1000 = 0x06000000;
+	ath79_register_eth(0);
+
+	/* XLNA */
+	ath79_wmac_set_ext_lna_gpio(0, Z1_GPIO_XLNA0);
+	ath79_wmac_set_ext_lna_gpio(1, Z1_GPIO_XLNA1);
+
+	/* LEDs and Buttons */
+	platform_device_register(&tricolor_leds);
+	ath79_register_leds_gpio(-1, ARRAY_SIZE(Z1_leds_gpio),
+				 Z1_leds_gpio);
+	ath79_register_gpio_keys_polled(-1, Z1_KEYS_POLL_INTERVAL,
+					ARRAY_SIZE(Z1_gpio_keys),
+					Z1_gpio_keys);
+
+	/* USB */
+	ath79_register_usb();
+
+	/* Wireless */
+	ath79_register_wmac_simple();
+	ap91_pci_init_simple();
+}
+MIPS_MACHINE(ATH79_MACH_Z1, "Z1", "Meraki Z1", z1_setup);
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h b/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h
index a3b8c8749d..87acc4a982 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h
+++ b/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h
@@ -266,6 +266,7 @@ enum ath79_mach_type {
 	ATH79_MACH_WZR_HP_G300NH2,	/* Buffalo WZR-HP-G300NH2 */
 	ATH79_MACH_WZR_HP_G450H,	/* Buffalo WZR-HP-G450H */
 	ATH79_MACH_WZR_450HP2,		/* Buffalo WZR-450HP2 */
+	ATH79_MACH_Z1,			/* Cisco Meraki Z1 */
 	ATH79_MACH_ZBT_WE1526,		/* Zbtlink ZBT-WE1526 */
 	ATH79_MACH_ZCN_1523H_2,		/* Zcomax ZCN-1523H-2-xx */
 	ATH79_MACH_ZCN_1523H_5,		/* Zcomax ZCN-1523H-5-xx */