Add submodule dependency filesHEADmaster

Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec

1 files changed, 369 insertions, 0 deletions

diff --git a/roms/u-boot/drivers/usb/mtu3/mtu3_plat.c b/roms/u-boot/drivers/usb/mtu3/mtu3_plat.c
new file mode 100644
index 000000000..b097471f3
--- /dev/null
+++ b/roms/u-boot/drivers/usb/mtu3/mtu3_plat.c
@@ -0,0 +1,369 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2016 MediaTek Inc.
+ *
+ * Author: Chunfeng Yun <chunfeng.yun@mediatek.com>
+ */
+
+#include <common.h>
+#include <dm/lists.h>
+#include <linux/iopoll.h>
+
+#include "mtu3.h"
+#include "mtu3_dr.h"
+
+void ssusb_set_force_mode(struct ssusb_mtk *ssusb,
+			  enum mtu3_dr_force_mode mode)
+{
+	u32 value;
+
+	value = mtu3_readl(ssusb->ippc_base, SSUSB_U2_CTRL(0));
+	switch (mode) {
+	case MTU3_DR_FORCE_DEVICE:
+		value |= SSUSB_U2_PORT_FORCE_IDDIG | SSUSB_U2_PORT_RG_IDDIG;
+		break;
+	case MTU3_DR_FORCE_HOST:
+		value |= SSUSB_U2_PORT_FORCE_IDDIG;
+		value &= ~SSUSB_U2_PORT_RG_IDDIG;
+		break;
+	case MTU3_DR_FORCE_NONE:
+		value &= ~(SSUSB_U2_PORT_FORCE_IDDIG | SSUSB_U2_PORT_RG_IDDIG);
+		break;
+	default:
+		return;
+	}
+	mtu3_writel(ssusb->ippc_base, SSUSB_U2_CTRL(0), value);
+}
+
+/* u2-port0 should be powered on and enabled; */
+int ssusb_check_clocks(struct ssusb_mtk *ssusb, u32 ex_clks)
+{
+	void __iomem *ibase = ssusb->ippc_base;
+	u32 value, check_val;
+	int ret;
+
+	check_val = ex_clks | SSUSB_SYS125_RST_B_STS | SSUSB_SYSPLL_STABLE |
+			SSUSB_REF_RST_B_STS;
+
+	ret = readl_poll_timeout(ibase + U3D_SSUSB_IP_PW_STS1, value,
+				 ((value & check_val) == check_val), 10000);
+	if (ret) {
+		dev_err(ssusb->dev, "clks of sts1 are not stable!\n");
+		return ret;
+	}
+
+	ret = readl_poll_timeout(ibase + U3D_SSUSB_IP_PW_STS2, value,
+				 (value & SSUSB_U2_MAC_SYS_RST_B_STS), 10000);
+	if (ret) {
+		dev_err(ssusb->dev, "mac2 clock is not stable\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+int ssusb_phy_setup(struct ssusb_mtk *ssusb)
+{
+	struct udevice *dev = ssusb->dev;
+	struct phy_bulk *phys = &ssusb->phys;
+	int ret;
+
+	ret = generic_phy_get_bulk(dev, phys);
+	if (ret)
+		return ret;
+
+	ret = generic_phy_init_bulk(phys);
+	if (ret)
+		return ret;
+
+	ret = generic_phy_power_on_bulk(phys);
+	if (ret)
+		generic_phy_exit_bulk(phys);
+
+	return ret;
+}
+
+void ssusb_phy_shutdown(struct ssusb_mtk *ssusb)
+{
+	generic_phy_power_off_bulk(&ssusb->phys);
+	generic_phy_exit_bulk(&ssusb->phys);
+}
+
+static int ssusb_rscs_init(struct ssusb_mtk *ssusb)
+{
+	int ret = 0;
+
+	ret = regulator_set_enable(ssusb->vusb33_supply, true);
+	if (ret < 0 && ret != -ENOSYS) {
+		dev_err(ssusb->dev, "failed to enable vusb33\n");
+		goto vusb33_err;
+	}
+
+	ret = clk_enable_bulk(&ssusb->clks);
+	if (ret)
+		goto clks_err;
+
+	ret = ssusb_phy_setup(ssusb);
+	if (ret) {
+		dev_err(ssusb->dev, "failed to setup phy\n");
+		goto phy_err;
+	}
+
+	return 0;
+
+phy_err:
+	clk_disable_bulk(&ssusb->clks);
+clks_err:
+	regulator_set_enable(ssusb->vusb33_supply, false);
+vusb33_err:
+	return ret;
+}
+
+static void ssusb_rscs_exit(struct ssusb_mtk *ssusb)
+{
+	clk_disable_bulk(&ssusb->clks);
+	regulator_set_enable(ssusb->vusb33_supply, false);
+	ssusb_phy_shutdown(ssusb);
+}
+
+static void ssusb_ip_sw_reset(struct ssusb_mtk *ssusb)
+{
+	/* reset whole ip (xhci & u3d) */
+	mtu3_setbits(ssusb->ippc_base, U3D_SSUSB_IP_PW_CTRL0, SSUSB_IP_SW_RST);
+	udelay(1);
+	mtu3_clrbits(ssusb->ippc_base, U3D_SSUSB_IP_PW_CTRL0, SSUSB_IP_SW_RST);
+}
+
+static int get_ssusb_rscs(struct udevice *dev, struct ssusb_mtk *ssusb)
+{
+	struct udevice *child;
+	int ret;
+
+	ret = device_get_supply_regulator(dev, "vusb33-supply",
+					  &ssusb->vusb33_supply);
+	if (ret)	/* optional, ignore error */
+		dev_warn(dev, "can't get optional vusb33 %d\n", ret);
+
+	ret = device_get_supply_regulator(dev, "vbus-supply",
+					  &ssusb->vbus_supply);
+	if (ret)	/* optional, ignore error */
+		dev_warn(dev, "can't get optional vbus regulator %d!\n", ret);
+
+	ret = clk_get_bulk(dev, &ssusb->clks);
+	if (ret) {
+		dev_err(dev, "failed to get clocks %d!\n", ret);
+		return ret;
+	}
+
+	ssusb->ippc_base = devfdt_remap_addr_name(dev, "ippc");
+	if (!ssusb->ippc_base) {
+		dev_err(dev, "error mapping memory for ippc\n");
+		return -ENODEV;
+	}
+
+	ret = device_find_first_child(dev, &child);
+	if (ret || !child) {
+		dev_err(dev, "failed to get child %d!\n", ret);
+		return ret;
+	}
+
+	ssusb->mac_base = devfdt_remap_addr_name(child, "mac");
+	if (!ssusb->mac_base) {
+		dev_err(dev, "error mapping memory for mac\n");
+		return -ENODEV;
+	}
+
+	ssusb->dr_mode = usb_get_dr_mode(dev_ofnode(child));
+
+	if (ssusb->dr_mode == USB_DR_MODE_UNKNOWN ||
+		ssusb->dr_mode == USB_DR_MODE_OTG)
+		ssusb->dr_mode = USB_DR_MODE_PERIPHERAL;
+
+	if (IS_ENABLED(CONFIG_USB_MTU3_GADGET))
+		ssusb->dr_mode = USB_DR_MODE_PERIPHERAL;
+	else if (IS_ENABLED(CONFIG_USB_MTU3_HOST))
+		ssusb->dr_mode = USB_DR_MODE_HOST;
+
+	dev_info(dev, "dr_mode: %d, ippc: 0x%p, mac: 0x%p\n",
+		 ssusb->dr_mode, ssusb->ippc_base, ssusb->mac_base);
+
+	return 0;
+}
+
+static int mtu3_probe(struct udevice *dev)
+{
+	struct ssusb_mtk *ssusb = dev_get_priv(dev);
+	int ret = -ENOMEM;
+
+	ssusb->dev = dev;
+
+	ret = get_ssusb_rscs(dev, ssusb);
+	if (ret)
+		return ret;
+
+	ret = ssusb_rscs_init(ssusb);
+	if (ret)
+		return ret;
+
+	ssusb_ip_sw_reset(ssusb);
+
+	return 0;
+}
+
+static int mtu3_remove(struct udevice *dev)
+{
+	struct ssusb_mtk *ssusb = dev_to_ssusb(dev);
+
+	ssusb_rscs_exit(ssusb);
+	return 0;
+}
+
+static const struct udevice_id ssusb_of_match[] = {
+	{.compatible = "mediatek,ssusb",},
+	{},
+};
+
+#if CONFIG_IS_ENABLED(DM_USB_GADGET)
+int dm_usb_gadget_handle_interrupts(struct udevice *dev)
+{
+	struct mtu3 *mtu = dev_get_priv(dev);
+
+	mtu3_irq(0, mtu);
+
+	return 0;
+}
+
+static int mtu3_gadget_probe(struct udevice *dev)
+{
+	struct ssusb_mtk *ssusb = dev_to_ssusb(dev->parent);
+	struct mtu3 *mtu = dev_get_priv(dev);
+
+	mtu->dev = dev;
+	ssusb->u3d = mtu;
+	return ssusb_gadget_init(ssusb);
+}
+
+static int mtu3_gadget_remove(struct udevice *dev)
+{
+	struct mtu3 *mtu = dev_get_priv(dev);
+
+	ssusb_gadget_exit(mtu->ssusb);
+	return 0;
+}
+
+U_BOOT_DRIVER(mtu3_peripheral) = {
+	.name = "mtu3-peripheral",
+	.id = UCLASS_USB_GADGET_GENERIC,
+	.of_match = ssusb_of_match,
+	.probe = mtu3_gadget_probe,
+	.remove = mtu3_gadget_remove,
+	.priv_auto	= sizeof(struct mtu3),
+};
+#endif
+
+#if defined(CONFIG_SPL_USB_HOST_SUPPORT) || \
+	(!defined(CONFIG_SPL_BUILD) && defined(CONFIG_USB_HOST))
+static int mtu3_host_probe(struct udevice *dev)
+{
+	struct ssusb_mtk *ssusb = dev_to_ssusb(dev->parent);
+	struct mtu3_host *u3h = dev_get_priv(dev);
+	struct xhci_hcor *hcor;
+	int rc;
+
+	u3h->dev = dev;
+	ssusb->u3h = u3h;
+	rc = ssusb_host_init(ssusb);
+	if (rc)
+		return rc;
+
+	u3h->ctrl.quirks = XHCI_MTK_HOST;
+	hcor = (struct xhci_hcor *)((uintptr_t)u3h->hcd +
+			HC_LENGTH(xhci_readl(&u3h->hcd->cr_capbase)));
+
+	return xhci_register(dev, u3h->hcd, hcor);
+}
+
+static int mtu3_host_remove(struct udevice *dev)
+{
+	struct mtu3_host *u3h = dev_get_priv(dev);
+
+	xhci_deregister(dev);
+	ssusb_host_exit(u3h->ssusb);
+	return 0;
+}
+
+U_BOOT_DRIVER(mtu3_host) = {
+	.name = "mtu3-host",
+	.id = UCLASS_USB,
+	.of_match = ssusb_of_match,
+	.probe = mtu3_host_probe,
+	.remove = mtu3_host_remove,
+	.priv_auto	= sizeof(struct mtu3_host),
+	.ops = &xhci_usb_ops,
+	.flags = DM_FLAG_ALLOC_PRIV_DMA,
+};
+#endif
+
+static int mtu3_glue_bind(struct udevice *parent)
+{
+	struct udevice *dev;
+	enum usb_dr_mode dr_mode;
+	const char *driver;
+	const char *name;
+	ofnode node;
+	int ret;
+
+	node = ofnode_by_compatible(dev_ofnode(parent), "mediatek,ssusb");
+	if (!ofnode_valid(node))
+		return -ENODEV;
+
+	name = ofnode_get_name(node);
+	dr_mode = usb_get_dr_mode(node);
+
+	switch (dr_mode) {
+#if CONFIG_IS_ENABLED(DM_USB_GADGET)
+	case USB_DR_MODE_PERIPHERAL:
+	case USB_DR_MODE_OTG:
+		dev_dbg(parent, "%s: dr_mode: peripheral\n", __func__);
+		driver = "mtu3-peripheral";
+		break;
+#endif
+
+#if defined(CONFIG_SPL_USB_HOST_SUPPORT) || \
+	(!defined(CONFIG_SPL_BUILD) && defined(CONFIG_USB_HOST))
+	case USB_DR_MODE_HOST:
+		dev_dbg(parent, "%s: dr_mode: host\n", __func__);
+		driver = "mtu3-host";
+		break;
+#endif
+	default:
+		dev_err(parent, "%s: unsupported dr_mode %d\n",
+			__func__, dr_mode);
+		return -ENODEV;
+	};
+
+	dev_dbg(parent, "%s: node name: %s, driver %s, dr_mode %d\n",
+		__func__, name, driver, dr_mode);
+
+	ret = device_bind_driver_to_node(parent, driver, name, node, &dev);
+	if (ret)
+		dev_err(parent, "%s: not able to bind usb device mode\n",
+			__func__);
+
+	return ret;
+}
+
+static const struct udevice_id mtu3_of_match[] = {
+	{.compatible = "mediatek,mtu3",},
+	{},
+};
+
+U_BOOT_DRIVER(mtu3) = {
+	.name = "mtu3",
+	.id = UCLASS_NOP,
+	.of_match = mtu3_of_match,
+	.bind = mtu3_glue_bind,
+	.probe = mtu3_probe,
+	.remove = mtu3_remove,
+	.priv_auto	= sizeof(struct ssusb_mtk),
+};