phy: phy-mtk-tphy: add property for BC12
Some platforms support BC12 which is disabled by default, here add a property to enable it if need Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
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@ -101,6 +101,9 @@
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#define P2C_RG_AVALID BIT(2)
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#define P2C_RG_IDDIG BIT(1)
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#define U3P_U2PHYBC12C 0x080
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#define P2C_RG_CHGDT_EN BIT(0)
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#define U3P_U3_CHIP_GPIO_CTLD 0x0c
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#define P3C_REG_IP_SW_RST BIT(31)
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#define P3C_MCU_BUS_CK_GATE_EN BIT(30)
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@ -297,6 +300,7 @@ struct mtk_phy_instance {
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int eye_src;
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int eye_vrt;
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int eye_term;
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bool bc12_en;
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};
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struct mtk_tphy {
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@ -839,12 +843,16 @@ static void phy_parse_property(struct mtk_tphy *tphy,
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if (instance->type != PHY_TYPE_USB2)
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return;
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instance->bc12_en = device_property_read_bool(dev, "mediatek,bc12");
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device_property_read_u32(dev, "mediatek,eye-src",
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&instance->eye_src);
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device_property_read_u32(dev, "mediatek,eye-vrt",
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&instance->eye_vrt);
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device_property_read_u32(dev, "mediatek,eye-term",
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&instance->eye_term);
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dev_dbg(dev, "bc12:%d, src:%d, vrt:%d, term:%d\n",
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instance->bc12_en, instance->eye_src,
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instance->eye_vrt, instance->eye_term);
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}
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static void u2_phy_props_set(struct mtk_tphy *tphy,
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@ -854,6 +862,11 @@ static void u2_phy_props_set(struct mtk_tphy *tphy,
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void __iomem *com = u2_banks->com;
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u32 tmp;
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if (instance->bc12_en) {
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tmp = readl(com + U3P_U2PHYBC12C);
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tmp |= P2C_RG_CHGDT_EN; /* BC1.2 path Enable */
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writel(tmp, com + U3P_U2PHYBC12C);
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}
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if (instance->eye_src) {
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tmp = readl(com + U3P_USBPHYACR5);
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