Add submodule dependency filesHEADmaster

Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec

1 files changed, 150 insertions, 0 deletions

diff --git a/roms/u-boot/drivers/usb/host/ehci-msm.c b/roms/u-boot/drivers/usb/host/ehci-msm.c
new file mode 100644
index 000000000..d160cf019
--- /dev/null
+++ b/roms/u-boot/drivers/usb/host/ehci-msm.c
@@ -0,0 +1,150 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Qualcomm EHCI driver
+ *
+ * (C) Copyright 2015 Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
+ *
+ * Based on Linux driver
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <errno.h>
+#include <usb.h>
+#include <usb/ehci-ci.h>
+#include <usb/ulpi.h>
+#include <wait_bit.h>
+#include <asm/gpio.h>
+#include <asm/io.h>
+#include <linux/compat.h>
+#include "ehci.h"
+
+struct msm_ehci_priv {
+	struct ehci_ctrl ctrl; /* Needed by EHCI */
+	struct usb_ehci *ehci; /* Start of IP core*/
+	struct ulpi_viewport ulpi_vp; /* ULPI Viewport */
+	struct phy phy;
+};
+
+static int msm_init_after_reset(struct ehci_ctrl *dev)
+{
+	struct msm_ehci_priv *p = container_of(dev, struct msm_ehci_priv, ctrl);
+	struct usb_ehci *ehci = p->ehci;
+
+	generic_phy_reset(&p->phy);
+
+	/* set mode to host controller */
+	writel(CM_HOST, &ehci->usbmode);
+
+	return 0;
+}
+
+static const struct ehci_ops msm_ehci_ops = {
+	.init_after_reset = msm_init_after_reset
+};
+
+static int ehci_usb_probe(struct udevice *dev)
+{
+	struct msm_ehci_priv *p = dev_get_priv(dev);
+	struct usb_ehci *ehci = p->ehci;
+	struct usb_plat *plat = dev_get_plat(dev);
+	struct ehci_hccr *hccr;
+	struct ehci_hcor *hcor;
+	int ret;
+
+	hccr = (struct ehci_hccr *)((phys_addr_t)&ehci->caplength);
+	hcor = (struct ehci_hcor *)((phys_addr_t)hccr +
+			HC_LENGTH(ehci_readl(&(hccr)->cr_capbase)));
+
+	ret = ehci_setup_phy(dev, &p->phy, 0);
+	if (ret)
+		return ret;
+
+	ret = board_usb_init(0, plat->init_type);
+	if (ret < 0)
+		return ret;
+
+	return ehci_register(dev, hccr, hcor, &msm_ehci_ops, 0,
+			     plat->init_type);
+}
+
+static int ehci_usb_remove(struct udevice *dev)
+{
+	struct msm_ehci_priv *p = dev_get_priv(dev);
+	struct usb_ehci *ehci = p->ehci;
+	int ret;
+
+	ret = ehci_deregister(dev);
+	if (ret)
+		return ret;
+
+	/* Stop controller. */
+	clrbits_le32(&ehci->usbcmd, CMD_RUN);
+
+	ret = ehci_shutdown_phy(dev, &p->phy);
+	if (ret)
+		return ret;
+
+	ret = board_usb_init(0, USB_INIT_DEVICE); /* Board specific hook */
+	if (ret < 0)
+		return ret;
+
+	/* Reset controller */
+	setbits_le32(&ehci->usbcmd, CMD_RESET);
+
+	/* Wait for reset */
+	if (wait_for_bit_le32(&ehci->usbcmd, CMD_RESET, false, 30, false)) {
+		printf("Stuck on USB reset.\n");
+		return -ETIMEDOUT;
+	}
+
+	return 0;
+}
+
+static int ehci_usb_of_to_plat(struct udevice *dev)
+{
+	struct msm_ehci_priv *priv = dev_get_priv(dev);
+
+	priv->ulpi_vp.port_num = 0;
+	priv->ehci = dev_read_addr_ptr(dev);
+
+	if (priv->ehci == (void *)FDT_ADDR_T_NONE)
+		return -EINVAL;
+
+	/* Warning: this will not work if viewport address is > 64 bit due to
+	 * ULPI design.
+	 */
+	priv->ulpi_vp.viewport_addr = (phys_addr_t)&priv->ehci->ulpi_viewpoint;
+
+	return 0;
+}
+
+#if defined(CONFIG_CI_UDC)
+/* Little quirk that MSM needs with Chipidea controller
+ * Must reinit phy after reset
+ */
+void ci_init_after_reset(struct ehci_ctrl *ctrl)
+{
+	struct msm_ehci_priv *p = ctrl->priv;
+
+	generic_phy_reset(&p->phy);
+}
+#endif
+
+static const struct udevice_id ehci_usb_ids[] = {
+	{ .compatible = "qcom,ehci-host", },
+	{ }
+};
+
+U_BOOT_DRIVER(usb_ehci) = {
+	.name	= "ehci_msm",
+	.id	= UCLASS_USB,
+	.of_match = ehci_usb_ids,
+	.of_to_plat = ehci_usb_of_to_plat,
+	.probe = ehci_usb_probe,
+	.remove = ehci_usb_remove,
+	.ops	= &ehci_usb_ops,
+	.priv_auto	= sizeof(struct msm_ehci_priv),
+	.plat_auto	= sizeof(struct usb_plat),
+	.flags	= DM_FLAG_ALLOC_PRIV_DMA,
+};