+// 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>
#include <dm.h>
-#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;
+ struct phy_bulk *usb_phys;
};
void dwc3_set_mode(struct dwc3 *dwc3_reg, u32 mode)
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);
+ if (ret && (ret != -ENOTSUPP))
return ret;
dwc3_reg = (struct dwc3 *)((char *)(hccr) + DWC3_REG_OFFSET);
dwc3_core_init(dwc3_reg);
- dr_mode = usb_get_dr_mode(dev_of_offset(dev));
+ /* 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->node);
if (dr_mode == USB_DR_MODE_UNKNOWN)
/* by default set dual role mode to HOST */
dr_mode = USB_DR_MODE_HOST;
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);
return xhci_deregister(dev);
}