ar71xx: add kernel support for the EnGenius ESR900

Signed-off-by: Forest Crossman <cyrozap@gmail.com>
Patchwork: http://patchwork.openwrt.org/patch/5714/
[juhosg:
  - drop nvram.c modifications,
  - create a separate kernel patch,
  - use ath79_setup_qca955x_eth_cfg helper,
  - merge esr900_{010,common}_setup functions,
  - statically init AR8327 pad configurations,
  - use pr_err instead of printk]
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

SVN-Revision: 41640

3 files changed, 240 insertions, 0 deletions

diff --git a/target/linux/ar71xx/config-3.10 b/target/linux/ar71xx/config-3.10
index aa5eb7ee37..c54c93e2be 100644
--- a/target/linux/ar71xx/config-3.10
+++ b/target/linux/ar71xx/config-3.10
@@ -50,6 +50,7 @@ CONFIG_ATH79_MACH_EAP7660D=y
 CONFIG_ATH79_MACH_EL_M150=y
 CONFIG_ATH79_MACH_EL_MINI=y
 CONFIG_ATH79_MACH_ESR1750=y
+CONFIG_ATH79_MACH_ESR900=y
 CONFIG_ATH79_MACH_EW_DORIN=y
 CONFIG_ATH79_MACH_GL_INET=y
 CONFIG_ATH79_MACH_GS_OOLITE=y
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-esr900.c b/target/linux/ar71xx/files/arch/mips/ath79/mach-esr900.c
new file mode 100644
index 0000000000..ca36e36114
--- /dev/null
+++ b/target/linux/ar71xx/files/arch/mips/ath79/mach-esr900.c
@@ -0,0 +1,200 @@
+/*
+ *  EnGenius ESR900 board support
+ *
+ *  Copyright (C) 2008-2012 Gabor Juhos <juhosg@openwrt.org>
+ *  Copyright (C) 2008 Imre Kaloz <kaloz@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.
+ */
+
+#define pr_fmt(fmt) "esr900: " fmt
+
+#include <linux/platform_device.h>
+#include <linux/ar8216_platform.h>
+
+#include <asm/mach-ath79/ar71xx_regs.h>
+
+#include "common.h"
+#include "pci.h"
+#include "dev-ap9x-pci.h"
+#include "dev-gpio-buttons.h"
+#include "dev-eth.h"
+#include "dev-leds-gpio.h"
+#include "dev-m25p80.h"
+#include "dev-usb.h"
+#include "dev-wmac.h"
+#include "machtypes.h"
+#include "nvram.h"
+
+#define ESR900_GPIO_LED_POWER           2
+#define ESR900_GPIO_LED_WLAN_2G         13
+#define ESR900_GPIO_LED_WPS_BLUE        19
+#define ESR900_GPIO_LED_WPS_AMBER       22
+#define ESR900_GPIO_LED_WLAN_5G         23
+
+#define ESR900_GPIO_BTN_WPS             16
+#define ESR900_GPIO_BTN_RESET           17
+
+#define ESR900_KEYS_POLL_INTERVAL       20 /* msecs */
+#define ESR900_KEYS_DEBOUNCE_INTERVAL   (3 * ESR900_KEYS_POLL_INTERVAL)
+
+#define ESR900_CALDATA_ADDR             0x1fff0000
+#define ESR900_WMAC_CALDATA_OFFSET      0x1000
+#define ESR900_PCIE_CALDATA_OFFSET      0x5000
+
+#define ESR900_CONFIG_ADDR              0x1f030000
+#define ESR900_CONFIG_SIZE              0x10000
+
+#define ESR900_LAN_PHYMASK              BIT(0)
+#define ESR900_WAN_PHYMASK              BIT(5)
+#define ESR900_MDIO_MASK                (~(ESR900_LAN_PHYMASK | ESR900_WAN_PHYMASK))
+
+static struct gpio_led esr900_leds_gpio[] __initdata = {
+	{
+		.name		= "engenius:amber:power",
+		.gpio		= ESR900_GPIO_LED_POWER,
+		.active_low	= 1,
+	},
+	{
+		.name		= "engenius:blue:wlan-2g",
+		.gpio		= ESR900_GPIO_LED_WLAN_2G,
+		.active_low	= 1,
+	},
+	{
+		.name		= "engenius:blue:wps",
+		.gpio		= ESR900_GPIO_LED_WPS_BLUE,
+		.active_low	= 1,
+	},
+	{
+		.name		= "engenius:amber:wps",
+		.gpio		= ESR900_GPIO_LED_WPS_AMBER,
+		.active_low	= 1,
+	},
+	{
+		.name		= "engenius:blue:wlan-5g",
+		.gpio		= ESR900_GPIO_LED_WLAN_5G,
+		.active_low	= 1,
+	}
+};
+
+static struct gpio_keys_button esr900_gpio_keys[] __initdata = {
+	{
+		.desc		= "WPS button",
+		.type		= EV_KEY,
+		.code		= KEY_WPS_BUTTON,
+		.debounce_interval = ESR900_KEYS_DEBOUNCE_INTERVAL,
+		.gpio		= ESR900_GPIO_BTN_WPS,
+		.active_low	= 1,
+	},
+	{
+		.desc		= "Reset button",
+		.type		= EV_KEY,
+		.code		= KEY_RESTART,
+		.debounce_interval = ESR900_KEYS_DEBOUNCE_INTERVAL,
+		.gpio		= ESR900_GPIO_BTN_RESET,
+		.active_low	= 1,
+	},
+};
+
+static struct ar8327_pad_cfg esr900_ar8327_pad0_cfg = {
+	/* GMAC0 of the AR8337 switch is connected to GMAC0 via RGMII */
+	.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_pad_cfg esr900_ar8327_pad6_cfg = {
+	/* GMAC6 of the AR8337 switch is connected to GMAC1 via SGMII */
+	.mode = AR8327_PAD_MAC_SGMII,
+	.rxclk_delay_en = true,
+	.rxclk_delay_sel = AR8327_CLK_DELAY_SEL0,
+};
+
+static struct ar8327_platform_data esr900_ar8327_data = {
+	.pad0_cfg = &esr900_ar8327_pad0_cfg,
+	.pad6_cfg = &esr900_ar8327_pad6_cfg,
+	.port0_cfg = {
+		.force_link = 1,
+		.speed = AR8327_PORT_SPEED_1000,
+		.duplex = 1,
+		.txpause = 1,
+		.rxpause = 1,
+	},
+	.port6_cfg = {
+		.force_link = 1,
+		.speed = AR8327_PORT_SPEED_1000,
+		.duplex = 1,
+		.txpause = 1,
+		.rxpause = 1,
+	},
+};
+
+static struct mdio_board_info esr900_mdio0_info[] = {
+	{
+		.bus_id = "ag71xx-mdio.0",
+		.phy_addr = 0,
+		.platform_data = &esr900_ar8327_data,
+	},
+};
+
+static void __init esr900_setup(void)
+{
+	const char *config = (char *) KSEG1ADDR(ESR900_CONFIG_ADDR);
+	u8 *art = (u8 *) KSEG1ADDR(ESR900_CALDATA_ADDR);
+	u8 lan_mac[6];
+	u8 wlan0_mac[6];
+	u8 wlan1_mac[6];
+
+	if (ath79_nvram_parse_mac_addr(config, ESR900_CONFIG_SIZE,
+				       "ethaddr=", lan_mac) == 0) {
+		ath79_init_local_mac(ath79_eth0_data.mac_addr, lan_mac);
+		ath79_init_mac(wlan0_mac, lan_mac, 0);
+		ath79_init_mac(wlan1_mac, lan_mac, 1);
+	} else {
+		pr_err("could not find ethaddr in u-boot environment\n");
+	}
+
+	ath79_register_m25p80(NULL);
+
+	ath79_register_leds_gpio(-1, ARRAY_SIZE(esr900_leds_gpio),
+					esr900_leds_gpio);
+	ath79_register_gpio_keys_polled(-1, ESR900_KEYS_POLL_INTERVAL,
+					ARRAY_SIZE(esr900_gpio_keys),
+					esr900_gpio_keys);
+
+	ath79_register_usb();
+
+	ath79_register_wmac(art + ESR900_WMAC_CALDATA_OFFSET, wlan0_mac);
+
+	ath79_setup_qca955x_eth_cfg(QCA955X_ETH_CFG_RGMII_EN);
+
+	ath79_register_mdio(0, 0x0);
+
+	mdiobus_register_board_info(esr900_mdio0_info,
+				    ARRAY_SIZE(esr900_mdio0_info));
+
+	/* GMAC0 is connected to the RMGII interface */
+	ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
+	ath79_eth0_data.phy_mask = ESR900_LAN_PHYMASK;
+	ath79_eth0_data.mii_bus_dev = &ath79_mdio0_device.dev;
+
+	ath79_eth0_pll_data.pll_1000 = 0xa6000000;
+	ath79_register_eth(0);
+
+	/* GMAC1 is connected to the SGMII interface */
+	ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_SGMII;
+	ath79_eth1_data.speed = SPEED_1000;
+	ath79_eth1_data.duplex = DUPLEX_FULL;
+
+	ath79_eth1_pll_data.pll_1000 = 0x03000101;
+	ath79_register_eth(1);
+
+	ap91_pci_init(art + ESR900_PCIE_CALDATA_OFFSET, wlan1_mac);
+}
+
+MIPS_MACHINE(ATH79_MACH_ESR900, "ESR900", "EnGenius ESR900", esr900_setup);
+
diff --git a/target/linux/ar71xx/patches-3.10/719-MIPS-ath79-add-ESR900-support.patch b/target/linux/ar71xx/patches-3.10/719-MIPS-ath79-add-ESR900-support.patch
new file mode 100644
index 0000000000..a3c0f8f67e
--- /dev/null
+++ b/target/linux/ar71xx/patches-3.10/719-MIPS-ath79-add-ESR900-support.patch
@@ -0,0 +1,39 @@
+--- a/arch/mips/ath79/machtypes.h
++++ b/arch/mips/ath79/machtypes.h
+@@ -47,6 +47,7 @@ enum ath79_mach_type {
+ 	ATH79_MACH_DIR_825_C1,		/* D-Link DIR-825 rev. C1 */
+ 	ATH79_MACH_DIR_835_A1,		/* D-Link DIR-835 rev. A1 */
+ 	ATH79_MACH_DRAGINO2,		/* Dragino Version 2 */
++	ATH79_MACH_ESR900,		/* EnGenius ESR900 */
+ 	ATH79_MACH_EW_DORIN,		/* embedded wireless Dorin Platform */
+ 	ATH79_MACH_EW_DORIN_ROUTER,	/* embedded wireless Dorin Router Platform */
+ 	ATH79_MACH_EAP7660D,		/* Senao EAP7660D */
+--- a/arch/mips/ath79/Kconfig
++++ b/arch/mips/ath79/Kconfig
+@@ -335,6 +335,16 @@ config ATH79_MACH_DRAGINO2
+ 	select ATH79_DEV_ETH
+ 	select ATH79_DEV_USB
+ 
++config ATH79_MACH_ESR900
++	bool "EnGenius ESR900 board support"
++	select SOC_QCA955X
++	select ATH79_DEV_ETH
++	select ATH79_DEV_GPIO_BUTTONS
++	select ATH79_DEV_LEDS_GPIO
++	select ATH79_DEV_SPI
++	select ATH79_DEV_USB
++	select ATH79_DEV_WMAC
++
+ config ATH79_MACH_EW_DORIN
+ 	bool "embedded wireless Dorin Platform support"
+ 	select SOC_AR933X
+--- a/arch/mips/ath79/Makefile
++++ b/arch/mips/ath79/Makefile
+@@ -60,6 +60,7 @@ obj-$(CONFIG_ATH79_MACH_DIR_615_C1)	+= m
+ obj-$(CONFIG_ATH79_MACH_DIR_825_B1)	+= mach-dir-825-b1.o
+ obj-$(CONFIG_ATH79_MACH_DIR_825_C1)	+= mach-dir-825-c1.o
+ obj-$(CONFIG_ATH79_MACH_DRAGINO2)	+= mach-dragino2.o
++obj-$(CONFIG_ATH79_MACH_ESR900)	+= mach-esr900.o
+ obj-$(CONFIG_ATH79_MACH_EW_DORIN)	+= mach-ew-dorin.o
+ obj-$(CONFIG_ATH79_MACH_EAP7660D)	+= mach-eap7660d.o
+ obj-$(CONFIG_ATH79_MACH_EL_M150)	+= mach-el-m150.o