ar71xx: add kernel support for EnGenius ESR1750

Signed-off-by: Jon Suphammer <jon@suphammer.net>
Patchwork: http://patchwork.openwrt.org/patch/5840/
[juhosg:
  - fix coding style in mach-esr1750.c,
  - rename and refresh kernel patch]
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

SVN-Revision: 41624

1 files changed, 176 insertions, 0 deletions

diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-esr1750.c b/target/linux/ar71xx/files/arch/mips/ath79/mach-esr1750.c
new file mode 100644
index 0000000000..2a34b3a2e9
--- /dev/null
+++ b/target/linux/ar71xx/files/arch/mips/ath79/mach-esr1750.c
@@ -0,0 +1,176 @@
+/*
+ *  EnGenius ESR1750 board support
+ *
+ *  Copyright (c) 2014 Jon Suphammer <jon@suphammer.net>
+ *
+ *  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/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 ESR1750_GPIO_LED_WLAN_5G	23
+#define ESR1750_GPIO_LED_WLAN_2G	13
+#define ESR1750_GPIO_LED_POWER_AMBER	2
+#define ESR1750_GPIO_LED_WPS_AMBER	22
+#define ESR1750_GPIO_LED_WPS_BLUE	19
+
+#define ESR1750_GPIO_BTN_WPS		16
+#define ESR1750_GPIO_BTN_RESET		17
+
+#define ESR1750_KEYS_POLL_INTERVAL	20	/* msecs */
+#define ESR1750_KEYS_DEBOUNCE_INTERVAL	(3 * ESR1750_KEYS_POLL_INTERVAL)
+
+#define ESR1750_CALDATA_ADDR 0x1fff0000
+#define ESR1750_WMAC_CALDATA_OFFSET	0x1000
+#define ESR1750_PCIE_CALDATA_OFFSET	0x5000
+
+#define ESR1750_NVRAM_ADDR	0x1f030000
+#define ESR1750_NVRAM_SIZE	0x10000
+
+static struct gpio_led esr1750_leds_gpio[] __initdata = {
+	{
+		.name		= "esr1750:amber:power",
+		.gpio		= ESR1750_GPIO_LED_POWER_AMBER,
+		.active_low	= 1,
+	},
+	{
+		.name		= "esr1750:blue:wps",
+		.gpio		= ESR1750_GPIO_LED_WPS_BLUE,
+		.active_low	= 1,
+	},
+	{
+		.name		= "esr1750:amber:wps",
+		.gpio		= ESR1750_GPIO_LED_WPS_AMBER,
+		.active_low	= 1,
+	},
+	{
+		.name		= "esr1750:blue:wlan-2g",
+		.gpio		= ESR1750_GPIO_LED_WLAN_2G,
+		.active_low	= 1,
+	},
+	{
+		.name		= "esr1750:blue:wlan-5g",
+		.gpio		= ESR1750_GPIO_LED_WLAN_5G,
+		.active_low	= 1,
+	}
+};
+
+static struct gpio_keys_button esr1750_gpio_keys[] __initdata = {
+	{
+		.desc		= "WPS button",
+		.type		= EV_KEY,
+		.code		= KEY_WPS_BUTTON,
+		.debounce_interval = ESR1750_KEYS_DEBOUNCE_INTERVAL,
+		.gpio		= ESR1750_GPIO_BTN_WPS,
+		.active_low	= 1,
+	},
+	{
+		.desc		= "Reset button",
+		.type		= EV_KEY,
+		.code		= KEY_RESTART,
+		.debounce_interval = ESR1750_KEYS_DEBOUNCE_INTERVAL,
+		.gpio		= ESR1750_GPIO_BTN_RESET,
+		.active_low	= 1,
+	},
+};
+
+static struct ar8327_pad_cfg esr1750_ar8327_pad0_cfg = {
+	.mode = AR8327_PAD_MAC_RGMII,
+	.txclk_delay_en = true,
+	.rxclk_delay_en = true,
+	.txclk_delay_sel = AR8327_CLK_DELAY_SEL2,
+	.rxclk_delay_sel = AR8327_CLK_DELAY_SEL2,
+};
+
+static struct ar8327_platform_data esr1750_ar8327_data = {
+	.pad0_cfg = &esr1750_ar8327_pad0_cfg,
+	.port0_cfg = {
+		.force_link = 1,
+		.speed = AR8327_PORT_SPEED_1000,
+		.duplex = 1,
+		.txpause = 1,
+		.rxpause = 1,
+	},
+};
+
+static struct mdio_board_info esr1750_mdio0_info[] = {
+	{
+		.bus_id = "ag71xx-mdio.0",
+		.phy_addr = 0,
+		.platform_data = &esr1750_ar8327_data,
+	},
+};
+
+static int esr1750_get_mac(const char *name, char *mac)
+{
+	u8 *nvram = (u8 *) KSEG1ADDR(ESR1750_NVRAM_ADDR);
+	int err;
+
+	err = ath79_nvram_parse_mac_addr(nvram, ESR1750_NVRAM_SIZE,
+					 name, mac);
+	if (err) {
+		pr_err("no MAC address found for %s\n", name);
+		return false;
+	}
+
+	return true;
+}
+
+static void __init esr1750_setup(void)
+{
+	u8 *caldata = (u8 *) KSEG1ADDR(ESR1750_CALDATA_ADDR);
+	u8 mac1[ETH_ALEN];
+
+	ath79_register_m25p80(NULL);
+
+	ath79_register_leds_gpio(-1, ARRAY_SIZE(esr1750_leds_gpio),
+					esr1750_leds_gpio);
+	ath79_register_gpio_keys_polled(-1, ESR1750_KEYS_POLL_INTERVAL,
+					ARRAY_SIZE(esr1750_gpio_keys),
+					esr1750_gpio_keys);
+
+	ath79_register_usb();
+
+	ath79_setup_qca955x_eth_cfg(QCA955X_ETH_CFG_RGMII_EN);
+
+	ath79_register_mdio(0, 0x0);
+
+	mdiobus_register_board_info(esr1750_mdio0_info,
+					ARRAY_SIZE(esr1750_mdio0_info));
+
+	/* GMAC0 is connected to an QCA8327N switch */
+	ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
+	ath79_eth0_data.phy_mask = BIT(0);
+	ath79_eth0_data.mii_bus_dev = &ath79_mdio0_device.dev;
+
+	if (esr1750_get_mac("ethaddr=", mac1))
+		ath79_init_mac(ath79_eth0_data.mac_addr, mac1, 0);
+
+	ath79_eth0_pll_data.pll_1000 = 0xa6000000;
+	ath79_register_eth(0);
+
+	ath79_register_wmac(caldata + ESR1750_WMAC_CALDATA_OFFSET, mac1);
+
+	ath79_register_pci();
+}
+
+MIPS_MACHINE(ATH79_MACH_ESR1750, "ESR1750",
+	     "EnGenius ESR1750",
+	     esr1750_setup);