freifunkist-firmware/target/linux/mediatek/patches-4.14/0226-phy-phy-mtk-tphy-Add-hifsys-support.patch

From 28f9a5e2a3f5441ab5594669ed82da11e32277a9 Mon Sep 17 00:00:00 2001
From: Kristian Evensen <kristian.evensen@gmail.com>
Date: Mon, 30 Apr 2018 14:38:01 +0200
Subject: [PATCH] phy: phy-mtk-tphy: Add hifsys-support

---
 drivers/phy/mediatek/phy-mtk-tphy.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

--- a/drivers/phy/mediatek/phy-mtk-tphy.c
+++ b/drivers/phy/mediatek/phy-mtk-tphy.c
@@ -23,6 +23,8 @@
 #include <linux/of_device.h>
 #include <linux/phy/phy.h>
 #include <linux/platform_device.h>
+#include <linux/mfd/syscon.h>
+#include <linux/regmap.h>
 
 /* version V1 sub-banks offset base address */
 /* banks shared by multiple phys */
@@ -262,6 +264,9 @@
 #define RG_CDR_BIRLTD0_GEN3_MSK		GENMASK(4, 0)
 #define RG_CDR_BIRLTD0_GEN3_VAL(x)	(0x1f & (x))
 
+#define HIF_SYSCFG1			0x14
+#define HIF_SYSCFG1_PHY2_MASK		(0x3 << 20)
+
 enum mtk_phy_version {
 	MTK_PHY_V1 = 1,
 	MTK_PHY_V2,
@@ -305,6 +310,7 @@ struct mtk_tphy {
 	struct clk *u3phya_ref;	/* reference clock of usb3 anolog phy */
 	const struct mtk_phy_pdata *pdata;
 	struct mtk_phy_instance **phys;
+	struct regmap *hif;
 	int nphys;
 };
 
@@ -617,6 +623,10 @@ static void pcie_phy_instance_init(struc
 	if (tphy->pdata->version != MTK_PHY_V1)
 		return;
 
+	if (tphy->hif)
+		regmap_update_bits(tphy->hif, HIF_SYSCFG1,
+				   HIF_SYSCFG1_PHY2_MASK, 0);
+
 	tmp = readl(u3_banks->phya + U3P_U3_PHYA_DA_REG0);
 	tmp &= ~(P3A_RG_XTAL_EXT_PE1H | P3A_RG_XTAL_EXT_PE2H);
 	tmp |= P3A_RG_XTAL_EXT_PE1H_VAL(0x2) | P3A_RG_XTAL_EXT_PE2H_VAL(0x2);
@@ -1042,6 +1052,16 @@ static int mtk_tphy_probe(struct platfor
 		tphy->u3phya_ref = NULL;
 	}
 
+	if (of_find_property(np, "mediatek,phy-switch", NULL)) {
+		tphy->hif = syscon_regmap_lookup_by_phandle(np,
+							    "mediatek,phy-switch");
+		if (IS_ERR(tphy->hif)) {
+			dev_err(&pdev->dev,
+				"missing \"mediatek,phy-switch\" phandle\n");
+			return PTR_ERR(tphy->hif);
+		}
+	}
+
 	port = 0;
 	for_each_child_of_node(np, child_np) {
 		struct mtk_phy_instance *instance;