driver: usb: drop legacy rockchip xhci driver

We have changed to use dwc3 generic driver for usb3.0 host, so the
legacy Rockchip's xHCI driver is not needed, and drop it.

Signed-off-by: Frank Wang <frank.wang@rock-chips.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>

3 files changed, 0 insertions, 207 deletions

diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index f0a9ed226c..1c374a7bd8 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -53,15 +53,6 @@ config USB_XHCI_PCI
 	help
 	  Enables support for the PCI-based xHCI controller.
 
-config USB_XHCI_ROCKCHIP
-	bool "Support for Rockchip on-chip xHCI USB controller"
-	depends on ARCH_ROCKCHIP
-	depends on DM_REGULATOR
-	depends on DM_USB
-	default y
-	help
-	  Enables support for the on-chip xHCI controller on Rockchip SoCs.
-
 config USB_XHCI_RCAR
 	bool "Renesas RCar USB 3.0 support"
 	default y
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index e8e3b17e42..29d4f87e38 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -48,7 +48,6 @@ obj-$(CONFIG_USB_XHCI_BRCM) += xhci-brcm.o
 obj-$(CONFIG_USB_XHCI_HCD) += xhci.o xhci-mem.o xhci-ring.o
 obj-$(CONFIG_USB_XHCI_DWC3) += xhci-dwc3.o
 obj-$(CONFIG_USB_XHCI_DWC3_OF_SIMPLE) += dwc3-of-simple.o
-obj-$(CONFIG_USB_XHCI_ROCKCHIP) += xhci-rockchip.o
 obj-$(CONFIG_USB_XHCI_EXYNOS) += xhci-exynos5.o
 obj-$(CONFIG_USB_XHCI_FSL) += xhci-fsl.o
 obj-$(CONFIG_USB_XHCI_MTK) += xhci-mtk.o
diff --git a/drivers/usb/host/xhci-rockchip.c b/drivers/usb/host/xhci-rockchip.c
deleted file mode 100644
index 1c2bf04df3..0000000000
--- a/drivers/usb/host/xhci-rockchip.c
+++ /dev/null
@@ -1,197 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Copyright (c) 2016 Rockchip, Inc.
- * Authors: Daniel Meng <daniel.meng@rock-chips.com>
- */
-#include <common.h>
-#include <dm.h>
-#include <log.h>
-#include <malloc.h>
-#include <usb.h>
-#include <watchdog.h>
-#include <linux/errno.h>
-#include <linux/compat.h>
-#include <linux/usb/dwc3.h>
-#include <power/regulator.h>
-
-#include <usb/xhci.h>
-
-struct rockchip_xhci_platdata {
-	fdt_addr_t hcd_base;
-	struct udevice *vbus_supply;
-};
-
-/*
- * Contains pointers to register base addresses
- * for the usb controller.
- */
-struct rockchip_xhci {
-	struct usb_platdata usb_plat;
-	struct xhci_ctrl ctrl;
-	struct xhci_hccr *hcd;
-	struct dwc3 *dwc3_reg;
-};
-
-static int xhci_usb_ofdata_to_platdata(struct udevice *dev)
-{
-	struct rockchip_xhci_platdata *plat = dev_get_platdata(dev);
-	int ret = 0;
-
-	/*
-	 * Get the base address for XHCI controller from the device node
-	 */
-	plat->hcd_base = dev_read_addr(dev);
-	if (plat->hcd_base == FDT_ADDR_T_NONE) {
-		pr_err("Can't get the XHCI register base address\n");
-		return -ENXIO;
-	}
-
-	/* Vbus regulator */
-	ret = device_get_supply_regulator(dev, "vbus-supply",
-					  &plat->vbus_supply);
-	if (ret)
-		debug("Can't get VBus regulator!\n");
-
-	return 0;
-}
-
-/*
- * rockchip_dwc3_phy_setup() - Configure USB PHY Interface of DWC3 Core
- * @dwc: Pointer to our controller context structure
- * @dev: Pointer to ulcass device
- */
-static void rockchip_dwc3_phy_setup(struct dwc3 *dwc3_reg,
-				    struct udevice *dev)
-{
-	u32 reg;
-	u32 utmi_bits;
-
-	/* Set dwc3 usb2 phy config */
-	reg = readl(&dwc3_reg->g_usb2phycfg[0]);
-
-	if (dev_read_bool(dev, "snps,dis-enblslpm-quirk"))
-		reg &= ~DWC3_GUSB2PHYCFG_ENBLSLPM;
-
-	utmi_bits = dev_read_u32_default(dev, "snps,phyif-utmi-bits", -1);
-	if (utmi_bits == 16) {
-		reg |= DWC3_GUSB2PHYCFG_PHYIF;
-		reg &= ~DWC3_GUSB2PHYCFG_USBTRDTIM_MASK;
-		reg |= DWC3_GUSB2PHYCFG_USBTRDTIM_16BIT;
-	} else if (utmi_bits == 8) {
-		reg &= ~DWC3_GUSB2PHYCFG_PHYIF;
-		reg &= ~DWC3_GUSB2PHYCFG_USBTRDTIM_MASK;
-		reg |= DWC3_GUSB2PHYCFG_USBTRDTIM_8BIT;
-	}
-
-	if (dev_read_bool(dev, "snps,dis-u2-freeclk-exists-quirk"))
-		reg &= ~DWC3_GUSB2PHYCFG_U2_FREECLK_EXISTS;
-
-	if (dev_read_bool(dev, "snps,dis-u2-susphy-quirk"))
-		reg &= ~DWC3_GUSB2PHYCFG_SUSPHY;
-
-	writel(reg, &dwc3_reg->g_usb2phycfg[0]);
-}
-
-static int rockchip_xhci_core_init(struct rockchip_xhci *rkxhci,
-				   struct udevice *dev)
-{
-	int ret;
-
-	ret = dwc3_core_init(rkxhci->dwc3_reg);
-	if (ret) {
-		pr_err("failed to initialize core\n");
-		return ret;
-	}
-
-	rockchip_dwc3_phy_setup(rkxhci->dwc3_reg, dev);
-
-	/* We are hard-coding DWC3 core to Host Mode */
-	dwc3_set_mode(rkxhci->dwc3_reg, DWC3_GCTL_PRTCAP_HOST);
-
-	return 0;
-}
-
-static int rockchip_xhci_core_exit(struct rockchip_xhci *rkxhci)
-{
-	return 0;
-}
-
-static int xhci_usb_probe(struct udevice *dev)
-{
-	struct rockchip_xhci_platdata *plat = dev_get_platdata(dev);
-	struct rockchip_xhci *ctx = dev_get_priv(dev);
-	struct xhci_hcor *hcor;
-	int ret;
-
-	ctx->hcd = (struct xhci_hccr *)plat->hcd_base;
-	ctx->dwc3_reg = (struct dwc3 *)((char *)(ctx->hcd) + DWC3_REG_OFFSET);
-	hcor = (struct xhci_hcor *)((uint64_t)ctx->hcd +
-			HC_LENGTH(xhci_readl(&ctx->hcd->cr_capbase)));
-
-	if (plat->vbus_supply) {
-		ret = regulator_set_enable(plat->vbus_supply, true);
-		if (ret) {
-			pr_err("XHCI: failed to set VBus supply\n");
-			return ret;
-		}
-	}
-
-	ret = rockchip_xhci_core_init(ctx, dev);
-	if (ret) {
-		pr_err("XHCI: failed to initialize controller\n");
-		return ret;
-	}
-
-	return xhci_register(dev, ctx->hcd, hcor);
-}
-
-static int xhci_usb_remove(struct udevice *dev)
-{
-	struct rockchip_xhci_platdata *plat = dev_get_platdata(dev);
-	struct rockchip_xhci *ctx = dev_get_priv(dev);
-	int ret;
-
-	ret = xhci_deregister(dev);
-	if (ret)
-		return ret;
-	ret = rockchip_xhci_core_exit(ctx);
-	if (ret)
-		return ret;
-
-	if (plat->vbus_supply) {
-		ret = regulator_set_enable(plat->vbus_supply, false);
-		if (ret)
-			pr_err("XHCI: failed to set VBus supply\n");
-	}
-
-	return ret;
-}
-
-static const struct udevice_id xhci_usb_ids[] = {
-	{ .compatible = "rockchip,rk3328-xhci" },
-	{ }
-};
-
-U_BOOT_DRIVER(usb_xhci) = {
-	.name	= "xhci_rockchip",
-	.id	= UCLASS_USB,
-	.of_match = xhci_usb_ids,
-	.ofdata_to_platdata = xhci_usb_ofdata_to_platdata,
-	.probe = xhci_usb_probe,
-	.remove = xhci_usb_remove,
-	.ops	= &xhci_usb_ops,
-	.bind	= dm_scan_fdt_dev,
-	.platdata_auto_alloc_size = sizeof(struct rockchip_xhci_platdata),
-	.priv_auto_alloc_size = sizeof(struct rockchip_xhci),
-	.flags	= DM_FLAG_ALLOC_PRIV_DMA,
-};
-
-static const struct udevice_id usb_phy_ids[] = {
-	{ .compatible = "rockchip,rk3328-usb3-phy" },
-	{ }
-};
-
-U_BOOT_DRIVER(usb_phy) = {
-	.name = "usb_phy_rockchip",
-	.of_match = usb_phy_ids,
-};