ARM: mach-meson: use new DWC3 glue for GXL & GXM

Use the new Amlogic GXL/GXM USB Glue instead of the set of USB3 PHY
and Simple DWC3 wrapper.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>

1 files changed, 72 insertions, 55 deletions

diff --git a/arch/arm/mach-meson/board-gx.c b/arch/arm/mach-meson/board-gx.c
index c4cc11f..7a0e703 100644
--- a/arch/arm/mach-meson/board-gx.c
+++ b/arch/arm/mach-meson/board-gx.c
@@ -156,79 +156,70 @@ void meson_eth_init(phy_interface_t mode, unsigned int flags)
 	clrbits_le32(GX_MEM_PD_REG_0, GX_MEM_PD_REG_0_ETH_MASK);
 }
 
-#if CONFIG_IS_ENABLED(USB_XHCI_DWC3_OF_SIMPLE) && \
+#if CONFIG_IS_ENABLED(USB_DWC3_MESON_GXL) && \
 	CONFIG_IS_ENABLED(USB_GADGET_DWC2_OTG)
 static struct dwc2_plat_otg_data meson_gx_dwc2_data;
-static struct phy usb_phys[2];
 
 int board_usb_init(int index, enum usb_init_type init)
 {
-	struct ofnode_phandle_args args;
-	struct udevice *clk_dev;
-	ofnode dwc2_node;
+	struct fdtdec_phandle_args args;
+	const void *blob = gd->fdt_blob;
+	int node, dwc2_node;
+	struct udevice *dev, *clk_dev;
 	struct clk clk;
-	int ret, i;
-	u32 val;
-
-	/* find the dwc2 node */
-	dwc2_node = ofnode_by_compatible(ofnode_null(), "snps,dwc2");
-	if (!ofnode_valid(dwc2_node)) {
-		debug("Not found dwc2 node\n");
-		return -ENODEV;
+	int ret;
+
+	/* find the usb glue node */
+	node = fdt_node_offset_by_compatible(blob, -1,
+					     "amlogic,meson-gxl-usb-ctrl");
+	if (node < 0) {
+		node = fdt_node_offset_by_compatible(blob, -1,
+					"amlogic,meson-gxm-usb-ctrl");
+		if (node < 0) {
+			debug("Not found usb-control node\n");
+			return -ENODEV;
+		}
 	}
 
-	if (!ofnode_is_available(dwc2_node)) {
-		debug("dwc2 is disabled in the device tree\n");
+	if (!fdtdec_get_is_enabled(blob, node)) {
+		debug("usb is disabled in the device tree\n");
 		return -ENODEV;
 	}
 
-	/* get the PHYs */
-	for (i = 0; i < 2; i++) {
-		ret = generic_phy_get_by_index_nodev(dwc2_node, i,
-						     &usb_phys[i]);
-		if (ret && ret != -ENOENT) {
-			pr_err("Failed to get USB PHY%d for %s\n",
-			       i, ofnode_get_name(dwc2_node));
-			return ret;
-		}
+	ret = uclass_get_device_by_of_offset(UCLASS_SIMPLE_BUS, node, &dev);
+	if (ret) {
+		debug("Not found usb-control device\n");
+		return ret;
 	}
 
-	for (i = 0; i < 2; i++) {
-		ret = generic_phy_init(&usb_phys[i]);
-		if (ret) {
-			pr_err("Can't init USB PHY%d for %s\n",
-			       i, ofnode_get_name(dwc2_node));
-			return ret;
-		}
+	/* find the dwc2 node */
+	dwc2_node = fdt_node_offset_by_compatible(blob, node,
+						  "amlogic,meson-g12a-usb");
+	if (dwc2_node < 0) {
+		debug("Not found dwc2 node\n");
+		return -ENODEV;
 	}
 
-	for (i = 0; i < 2; i++) {
-		ret = generic_phy_power_on(&usb_phys[i]);
-		if (ret) {
-			pr_err("Can't power USB PHY%d for %s\n",
-			       i, ofnode_get_name(dwc2_node));
-			return ret;
-		}
+	if (!fdtdec_get_is_enabled(blob, dwc2_node)) {
+		debug("dwc2 is disabled in the device tree\n");
+		return -ENODEV;
 	}
 
-	phy_meson_gxl_usb3_set_mode(&usb_phys[0], USB_DR_MODE_PERIPHERAL);
-	phy_meson_gxl_usb2_set_mode(&usb_phys[1], USB_DR_MODE_PERIPHERAL);
-
-	meson_gx_dwc2_data.regs_otg = ofnode_get_addr(dwc2_node);
+	meson_gx_dwc2_data.regs_otg = fdtdec_get_addr(blob, dwc2_node, "reg");
 	if (meson_gx_dwc2_data.regs_otg == FDT_ADDR_T_NONE) {
 		debug("usbotg: can't get base address\n");
 		return -ENODATA;
 	}
 
 	/* Enable clock */
-	ret = ofnode_parse_phandle_with_args(dwc2_node, "clocks",
+	ret = fdtdec_parse_phandle_with_args(blob, dwc2_node, "clocks",
 					     "#clock-cells", 0, 0, &args);
 	if (ret) {
 		debug("usbotg has no clocks defined in the device tree\n");
 		return ret;
 	}
 
-	ret = uclass_get_device_by_ofnode(UCLASS_CLK, args.node, &clk_dev);
+	ret = uclass_get_device_by_of_offset(UCLASS_CLK, args.node, &clk_dev);
 	if (ret)
 		return ret;
 
@@ -246,25 +237,51 @@ int board_usb_init(int index, enum usb_init_type init)
 		return ret;
 	}
 
-	ofnode_read_u32(dwc2_node, "g-rx-fifo-size", &val);
-	meson_gx_dwc2_data.rx_fifo_sz = val;
-	ofnode_read_u32(dwc2_node, "g-np-tx-fifo-size", &val);
-	meson_gx_dwc2_data.np_tx_fifo_sz = val;
-	ofnode_read_u32(dwc2_node, "g-tx-fifo-size", &val);
-	meson_gx_dwc2_data.tx_fifo_sz = val;
+	meson_gx_dwc2_data.rx_fifo_sz = fdtdec_get_int(blob, dwc2_node,
+						     "g-rx-fifo-size", 0);
+	meson_gx_dwc2_data.np_tx_fifo_sz = fdtdec_get_int(blob, dwc2_node,
+							"g-np-tx-fifo-size", 0);
+	meson_gx_dwc2_data.tx_fifo_sz = fdtdec_get_int(blob, dwc2_node,
+						     "g-tx-fifo-size", 0);
+
+	/* Switch to peripheral mode */
+	ret = dwc3_meson_gxl_force_mode(dev, USB_DR_MODE_PERIPHERAL);
+	if (ret)
+		return ret;
 
 	return dwc2_udc_probe(&meson_gx_dwc2_data);
 }
 
 int board_usb_cleanup(int index, enum usb_init_type init)
 {
-	int i;
+	const void *blob = gd->fdt_blob;
+	struct udevice *dev;
+	int node;
+	int ret;
+
+	/* find the usb glue node */
+	node = fdt_node_offset_by_compatible(blob, -1,
+					     "amlogic,meson-gxl-usb-ctrl");
+	if (node < 0) {
+		node = fdt_node_offset_by_compatible(blob, -1,
+					"amlogic,meson-gxm-usb-ctrl");
+		if (node < 0) {
+			debug("Not found usb-control node\n");
+			return -ENODEV;
+		}
+	}
 
-	phy_meson_gxl_usb3_set_mode(&usb_phys[0], USB_DR_MODE_HOST);
-	phy_meson_gxl_usb2_set_mode(&usb_phys[1], USB_DR_MODE_HOST);
+	if (!fdtdec_get_is_enabled(blob, node))
+		return -ENODEV;
 
-	for (i = 0; i < 2; i++)
-		usb_phys[i].dev = NULL;
+	ret = uclass_get_device_by_of_offset(UCLASS_SIMPLE_BUS, node, &dev);
+	if (ret)
+		return ret;
+
+	/* Switch to OTG mode */
+	ret = dwc3_meson_gxl_force_mode(dev, USB_DR_MODE_HOST);
+	if (ret)
+		return ret;
 
 	return 0;
 }