common: Move ARM cache operations out of common.h

[oweals/u-boot.git] / drivers / usb / host / xhci-dwc3.c

diff --git a/drivers/usb/host/xhci-dwc3.c b/drivers/usb/host/xhci-dwc3.c
index c1007350b729307c962cbace4a61f79654b7c39e..c1c681ca6cf159a77ab80560d3b1aa4a03537dc2 100644 (file)
--- a/drivers/usb/host/xhci-dwc3.c
+++ b/drivers/usb/host/xhci-dwc3.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2015 Freescale Semiconductor, Inc.
  *
  * DWC3 controller driver
  *
  * Author: Ramneek Mehresh<ramneek.mehresh@freescale.com>
- *
- * SPDX-License-Identifier:     GPL-2.0+
  */
 
 #include <common.h>
@@ -13,14 +12,13 @@
 #include <fdtdec.h>
 #include <generic-phy.h>
 #include <usb.h>
+#include <dwc3-uboot.h>
 
-#include "xhci.h"
+#include <usb/xhci.h>
 #include <asm/io.h>
 #include <linux/usb/dwc3.h>
 #include <linux/usb/otg.h>
 
-DECLARE_GLOBAL_DATA_PTR;
-
 struct xhci_dwc3_platdata {
        struct phy *usb_phys;
        int num_phys;
@@ -112,109 +110,51 @@ void dwc3_set_fladj(struct dwc3 *dwc3_reg, u32 val)
                        GFLADJ_30MHZ(val));
 }
 
-#ifdef CONFIG_DM_USB
-static int xhci_dwc3_setup_phy(struct udevice *dev, int count)
-{
-       struct xhci_dwc3_platdata *plat = dev_get_platdata(dev);
-       int i, ret;
-
-       if (!count)
-               return 0;
-
-       plat->usb_phys = devm_kcalloc(dev, count, sizeof(struct phy),
-                                       GFP_KERNEL);
-       if (!plat->usb_phys)
-               return -ENOMEM;
-
-       for (i = 0; i < count; i++) {
-               ret = generic_phy_get_by_index(dev, i, &plat->usb_phys[i]);
-               if (ret && ret != -ENOENT) {
-                       pr_err("Failed to get USB PHY%d for %s\n",
-                              i, dev->name);
-                       return ret;
-               }
-
-               ++plat->num_phys;
-       }
-       
-       for (i = 0; i < plat->num_phys; i++) {
-               ret = generic_phy_init(&plat->usb_phys[i]);
-               if (ret) {
-                       pr_err("Can't init USB PHY%d for %s\n",
-                              i, dev->name);
-                       goto phys_init_err;
-               }
-       }
-       
-       for (i = 0; i < plat->num_phys; i++) {
-               ret = generic_phy_power_on(&plat->usb_phys[i]);
-               if (ret) {
-                       pr_err("Can't power USB PHY%d for %s\n",
-                              i, dev->name);
-                       goto phys_poweron_err;
-               }
-       }
-
-       return 0;
-
-
-phys_poweron_err:
-       for (; i >= 0; i--)
-               generic_phy_power_off(&plat->usb_phys[i]);
-
-       for (i = 0; i < plat->num_phys; i++)
-               generic_phy_exit(&plat->usb_phys[i]);
-
-       return ret;
-
-phys_init_err:
-       for (; i >= 0; i--)
-               generic_phy_exit(&plat->usb_phys[i]);
-
-       return ret;
-}
-
-static int xhci_dwc3_shutdown_phy(struct udevice *dev)
-{
-       struct xhci_dwc3_platdata *plat = dev_get_platdata(dev);
-       int i, ret;
-
-       for (i = 0; i < plat->num_phys; i++) {
-               if (!generic_phy_valid(&plat->usb_phys[i]))
-                       continue;
-
-               ret = generic_phy_power_off(&plat->usb_phys[i]);
-               ret |= generic_phy_exit(&plat->usb_phys[i]);
-               if (ret) {
-                       pr_err("Can't shutdown USB PHY%d for %s\n",
-                               i, dev->name);
-               }
-       }
-
-       return 0;
-}
-
+#if CONFIG_IS_ENABLED(DM_USB)
 static int xhci_dwc3_probe(struct udevice *dev)
 {
        struct xhci_hcor *hcor;
        struct xhci_hccr *hccr;
        struct dwc3 *dwc3_reg;
        enum usb_dr_mode dr_mode;
+       struct xhci_dwc3_platdata *plat = dev_get_platdata(dev);
+       const char *phy;
+       u32 reg;
        int ret;
 
        hccr = (struct xhci_hccr *)((uintptr_t)dev_read_addr(dev));
        hcor = (struct xhci_hcor *)((uintptr_t)hccr +
                        HC_LENGTH(xhci_readl(&(hccr)->cr_capbase)));
 
-       ret = xhci_dwc3_setup_phy(dev, dev_count_phandle_with_args(
-                                               dev, "phys", "#phy-cells"));
-       if (ret)
+       ret = dwc3_setup_phy(dev, &plat->usb_phys, &plat->num_phys);
+       if (ret && (ret != -ENOTSUPP))
                return ret;
 
        dwc3_reg = (struct dwc3 *)((char *)(hccr) + DWC3_REG_OFFSET);
 
        dwc3_core_init(dwc3_reg);
 
+       /* Set dwc3 usb2 phy config */
+       reg = readl(&dwc3_reg->g_usb2phycfg[0]);
+
+       phy = dev_read_string(dev, "phy_type");
+       if (phy && strcmp(phy, "utmi_wide") == 0) {
+               reg |= DWC3_GUSB2PHYCFG_PHYIF;
+               reg &= ~DWC3_GUSB2PHYCFG_USBTRDTIM_MASK;
+               reg |= DWC3_GUSB2PHYCFG_USBTRDTIM_16BIT;
+       }
+
+       if (dev_read_bool(dev, "snps,dis_enblslpm-quirk"))
+               reg &= ~DWC3_GUSB2PHYCFG_ENBLSLPM;
+
+       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]);
+
        dr_mode = usb_get_dr_mode(dev_of_offset(dev));
        if (dr_mode == USB_DR_MODE_UNKNOWN)
                /* by default set dual role mode to HOST */
@@ -227,7 +167,9 @@ static int xhci_dwc3_probe(struct udevice *dev)
 
 static int xhci_dwc3_remove(struct udevice *dev)
 {
-       xhci_dwc3_shutdown_phy(dev);
+       struct xhci_dwc3_platdata *plat = dev_get_platdata(dev);
+
+       dwc3_shutdown_phy(dev, plat->usb_phys, plat->num_phys);
 
        return xhci_deregister(dev);
 }