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ralink: fix mt7628 ehci support 

the u2_phy init was missing

Signed-off-by: John Crispin <blogic@openwrt.org>

SVN-Revision: 48747
This commit is contained in:
John Crispin 2016-02-19 16:38:04 +00:00
parent 1e218001b5
commit fc47eb0794
2 changed files with 61 additions and 7 deletions
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3
target/linux/ramips/dts/mt7628an.dtsi
View File

@ -340,8 +340,9 @@
#reset-cells = <1>;
};
usbphy: usbphy {
usbphy: usbphy@10120000 {
compatible = "ralink,mt7628an-usbphy", "mediatek,mt7620-usbphy";
reg = <0x10120000 4000>;
#phy-cells = <1>;
resets = <&rstctrl 22 &rstctrl 25>;

65
target/linux/ramips/patches-4.3/0029-phy-usb-add-ralink-phy.patch
View File

@ -38,7 +38,7 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
+};
--- a/drivers/phy/Kconfig
+++ b/drivers/phy/Kconfig
@@ -331,6 +331,14 @@ config PHY_XGENE
@@ -331,6 +331,14 @@
help
This option enables support for APM X-Gene SoC multi-purpose PHY.
@ -55,14 +55,14 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
depends on RESET_CONTROLLER
--- a/drivers/phy/Makefile
+++ b/drivers/phy/Makefile
@@ -46,3 +46,4 @@ obj-$(CONFIG_PHY_QCOM_UFS) += phy-qcom-
@@ -46,3 +46,4 @@
obj-$(CONFIG_PHY_TUSB1210) += phy-tusb1210.o
obj-$(CONFIG_PHY_BRCMSTB_SATA) += phy-brcmstb-sata.o
obj-$(CONFIG_PHY_PISTACHIO_USB) += phy-pistachio-usb.o
+obj-$(CONFIG_PHY_RALINK_USB) += phy-ralink-usb.o
--- /dev/null
+++ b/drivers/phy/phy-ralink-usb.c
@@ -0,0 +1,175 @@
@@ -0,0 +1,228 @@
+/*
+ * Allwinner ralink USB phy driver
+ *
@ -99,6 +99,20 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
+#define RT_SYSC_REG_CLKCFG1 0x030
+#define RT_SYSC_REG_USB_PHY_CFG 0x05c
+
+#define OFS_U2_PHY_AC0 0x00
+#define OFS_U2_PHY_AC1 0x04
+#define OFS_U2_PHY_AC2 0x08
+#define OFS_U2_PHY_ACR0 0x10
+#define OFS_U2_PHY_ACR1 0x14
+#define OFS_U2_PHY_ACR2 0x18
+#define OFS_U2_PHY_ACR3 0x1C
+#define OFS_U2_PHY_ACR4 0x20
+#define OFS_U2_PHY_AMON0 0x24
+#define OFS_U2_PHY_DCR0 0x60
+#define OFS_U2_PHY_DCR1 0x64
+#define OFS_U2_PHY_DTM0 0x68
+#define OFS_U2_PHY_DTM1 0x6C
+
+#define RT_RSTCTRL_UDEV BIT(25)
+#define RT_RSTCTRL_UHST BIT(22)
+#define RT_SYSCFG1_USB0_HOST_MODE BIT(10)
@ -116,8 +130,40 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
+ struct reset_control *rsthost;
+ u32 clk;
+ struct phy *phy;
+ void __iomem *base;
+};
+
+static void u2_phy_w32(struct ralink_usb_phy *phy, u32 val, u32 reg)
+{
+ iowrite32(val, phy->base + reg);
+}
+
+static u32 u2_phy_r32(struct ralink_usb_phy *phy, u32 reg)
+{
+ return ioread32(phy->base + reg);
+}
+
+static void
+u2_phy_init(struct ralink_usb_phy *phy)
+{
+ u2_phy_r32(phy, OFS_U2_PHY_AC2);
+ u2_phy_r32(phy, OFS_U2_PHY_ACR0);
+ u2_phy_r32(phy, OFS_U2_PHY_DCR0);
+
+ u2_phy_w32(phy, 0x00ffff02, OFS_U2_PHY_DCR0);
+ u2_phy_r32(phy, OFS_U2_PHY_DCR0);
+ u2_phy_w32(phy, 0x00555502, OFS_U2_PHY_DCR0);
+ u2_phy_r32(phy, OFS_U2_PHY_DCR0);
+ u2_phy_w32(phy, 0x00aaaa02, OFS_U2_PHY_DCR0);
+ u2_phy_r32(phy, OFS_U2_PHY_DCR0);
+ u2_phy_w32(phy, 0x00000402, OFS_U2_PHY_DCR0);
+ u2_phy_r32(phy, OFS_U2_PHY_DCR0);
+ u2_phy_w32(phy, 0x0048086a, OFS_U2_PHY_AC0);
+ u2_phy_w32(phy, 0x4400001c, OFS_U2_PHY_AC1);
+ u2_phy_w32(phy, 0xc0200000, OFS_U2_PHY_ACR3);
+ u2_phy_w32(phy, 0x02000000, OFS_U2_PHY_DTM0);
+}
+
+static int ralink_usb_phy_power_on(struct phy *_phy)
+{
+ struct ralink_usb_phy *phy = phy_get_drvdata(_phy);
@ -139,6 +185,9 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
+ */
+ mdelay(10);
+
+ if (!IS_ERR(phy->base))
+ u2_phy_init(phy);
+
+ /* print some status info */
+ t = rt_sysc_r32(RT_SYSC_REG_USB_PHY_CFG);
+ dev_info(&phy->phy->dev, "remote usb device wakeup %s\n",
@ -155,13 +204,13 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
+{
+ struct ralink_usb_phy *phy = phy_get_drvdata(_phy);
+
+ /* disable the phy */
+ rt_sysc_m32(phy->clk, 0, RT_SYSC_REG_CLKCFG1);
+
+ /* assert the reset lines */
+ reset_control_assert(phy->rstdev);
+ reset_control_assert(phy->rsthost);
+
+ /* disable the phy */
+ rt_sysc_m32(phy->clk, 0, RT_SYSC_REG_CLKCFG1);
+
+ return 0;
+}
+
@ -187,6 +236,7 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
+
+static int ralink_usb_phy_probe(struct platform_device *pdev)
+{
+ struct resource *res;
+ struct device *dev = &pdev->dev;
+ struct phy_provider *phy_provider;
+ const struct of_device_id *match;
@ -202,6 +252,9 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
+
+ phy->clk = (int) match->data;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ phy->base = devm_ioremap_resource(&pdev->dev, res);
+
+ phy->rsthost = devm_reset_control_get(&pdev->dev, "host");
+ if (IS_ERR(phy->rsthost)) {
+ dev_err(dev, "host reset is missing\n");