openwrt/package/kernel/mac80211/patches/ath9k/550-ath9k-of.patch

--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -28,6 +28,11 @@
 
 #include "ath9k.h"
 
+#ifdef CONFIG_ATH79
+#include <asm/mach-ath79/ath79.h>
+#include <asm/mach-ath79/ar71xx_regs.h>
+#endif
+ 
 struct ath9k_eeprom_ctx {
 	struct completion complete;
 	struct ath_hw *ah;
@@ -242,6 +247,81 @@ static unsigned int ath9k_reg_rmw(void *
 	return val;
 }
 
+#ifdef CONFIG_ATH79
+#define QCA955X_DDR_CTL_CONFIG          0x108
+#define QCA955X_DDR_CTL_CONFIG_ACT_WMAC BIT(23)
+
+static int ar913x_wmac_reset(void)
+{
+	ath79_device_reset_set(AR913X_RESET_AMBA2WMAC);
+	mdelay(10);
+
+	ath79_device_reset_clear(AR913X_RESET_AMBA2WMAC);
+	mdelay(10);
+
+	return 0;
+}
+
+static int ar933x_wmac_reset(void)
+{
+	int retries = 20;
+
+	ath79_device_reset_set(AR933X_RESET_WMAC);
+	ath79_device_reset_clear(AR933X_RESET_WMAC);
+
+	while (1) {
+		u32 bootstrap;
+
+		bootstrap = ath79_reset_rr(AR933X_RESET_REG_BOOTSTRAP);
+		if ((bootstrap & AR933X_BOOTSTRAP_EEPBUSY) == 0)
+			return 0;
+
+		if (retries-- == 0)
+			break;
+
+		udelay(10000);
+	}
+
+	pr_err("ar933x: WMAC reset timed out");
+	return -ETIMEDOUT;
+}
+
+static int qca955x_wmac_reset(void)
+{
+	int i;
+
+	/* Try to wait for WMAC DDR activity to stop */
+	for (i = 0; i < 10; i++) {
+		if (!(__raw_readl(ath79_ddr_base + QCA955X_DDR_CTL_CONFIG) &
+		    QCA955X_DDR_CTL_CONFIG_ACT_WMAC))
+			break;
+
+		udelay(10);
+	}
+
+	ath79_device_reset_set(QCA955X_RESET_RTC);
+	udelay(10);
+	ath79_device_reset_clear(QCA955X_RESET_RTC);
+	udelay(10);
+
+	return 0;
+}
+
+
+static int ar9330_get_soc_revision(void)
+{
+	if (ath79_soc_rev == 1)
+		return ath79_soc_rev;
+
+	return 0;
+}
+
+static int ath79_get_soc_revision(void)
+{
+	return ath79_soc_rev;
+}
+#endif
+
 /**************************/
 /*     Initialization     */
 /**************************/
@@ -626,6 +706,7 @@ static int ath9k_of_init(struct ath_soft
 	struct ath_common *common = ath9k_hw_common(ah);
 	enum ath_bus_type bus_type = common->bus_ops->ath_bus_type;
 	char eeprom_name[100];
+	u32 mask;
 	int ret;
 
 	if (!of_device_is_available(np))
@@ -633,6 +714,43 @@ static int ath9k_of_init(struct ath_soft
 
 	ath_dbg(common, CONFIG, "parsing configuration from OF node\n");
 
+	if (!of_property_read_u32(np, "qca,gpio-mask", &mask))
+		ah->caps.gpio_mask = mask;
+
+	if (of_property_read_bool(np, "qca,tx-gain-buffalo"))
+		ah->config.tx_gain_buffalo = true;
+
+#ifdef CONFIG_ATH79
+	if (ah->hw_version.devid == AR5416_AR9100_DEVID) {
+		ah->external_reset = ar913x_wmac_reset;
+	} else if (ah->hw_version.devid == AR9300_DEVID_AR9330) {
+		ah->get_mac_revision = ar9330_get_soc_revision;
+		u32 t = ath79_reset_rr(AR933X_RESET_REG_BOOTSTRAP);
+		ah->is_clk_25mhz = !(t & AR933X_BOOTSTRAP_REF_CLK_40);
+		ah->external_reset = ar933x_wmac_reset;
+	} else if (ah->hw_version.devid == AR9300_DEVID_AR9340) {
+		ah->get_mac_revision = ath79_get_soc_revision;
+		u32 t = ath79_reset_rr(AR934X_RESET_REG_BOOTSTRAP);
+		ah->is_clk_25mhz = !(t & AR934X_BOOTSTRAP_REF_CLK_40);
+	} else if (ah->hw_version.devid == AR9300_DEVID_AR953X) {
+		ah->get_mac_revision = ath79_get_soc_revision;
+		/*
+		 * QCA953x only supports 25MHz refclk.
+		 * Some vendors have an invalid bootstrap option
+		 * set, which would break the WMAC here.
+		 */
+		ah->is_clk_25mhz = true;
+	} else if (ah->hw_version.devid == AR9300_DEVID_QCA955X) {
+		u32 t = ath79_reset_rr(QCA955X_RESET_REG_BOOTSTRAP);
+		ah->is_clk_25mhz = !(t & QCA955X_BOOTSTRAP_REF_CLK_40);
+		ah->external_reset = qca955x_wmac_reset;
+	} else if (ah->hw_version.devid == AR9300_DEVID_QCA956X) {
+		ah->get_mac_revision = ath79_get_soc_revision;
+		u32 t = ath79_reset_rr(QCA956X_RESET_REG_BOOTSTRAP);
+		ah->is_clk_25mhz = !(t & QCA956X_BOOTSTRAP_REF_CLK_40);
+	}
+#endif
+
 	if (of_property_read_bool(np, "qca,no-eeprom")) {
 		/* ath9k-eeprom-<bus>-<id>.bin */
 		scnprintf(eeprom_name, sizeof(eeprom_name),
@@ -651,6 +769,17 @@ static int ath9k_of_init(struct ath_soft
 	if (ret == -EPROBE_DEFER)
 		return ret;
 
+	np = of_get_child_by_name(np, "led");
+	if (np && of_device_is_available(np)) {
+		u32 led_pin;
+
+		if (!of_property_read_u32(np, "led-sources", &led_pin))
+			ah->led_pin = led_pin;
+
+		ah->config.led_active_high = !of_property_read_bool(np, "led-active-low");
+		of_node_put(np);
+	}
+
 	return 0;
 }