+// SPDX-License-Identifier: GPL-2.0
/**
* core.c - DesignWare USB3 DRD Controller Core file
*
* to uboot.
*
* commit cd72f890d2 : usb: dwc3: core: enable phy suspend quirk on non-FPGA
- *
- * SPDX-License-Identifier: GPL-2.0
*/
#include <common.h>
#include <dwc3-uboot.h>
#include <asm/dma-mapping.h>
#include <linux/ioport.h>
-
+#include <dm.h>
+#include <generic-phy.h>
#include <linux/usb/ch9.h>
#include <linux/usb/gadget.h>
{
struct dwc3_event_buffer *evt;
- evt = devm_kzalloc(dwc->dev, sizeof(*evt), GFP_KERNEL);
+ evt = devm_kzalloc((struct udevice *)dwc->dev, sizeof(*evt),
+ GFP_KERNEL);
if (!evt)
return ERR_PTR(-ENOMEM);
if (!evt->buf)
return ERR_PTR(-ENOMEM);
+ dwc3_flush_cache((uintptr_t)evt->buf, evt->length);
+
return evt;
}
goto err0;
}
+ dwc3_phy_setup(dwc);
+
ret = dwc3_core_soft_reset(dwc);
if (ret)
goto err0;
dwc3_writel(dwc->regs, DWC3_GCTL, reg);
- dwc3_phy_setup(dwc);
-
ret = dwc3_alloc_scratch_buffers(dwc);
if (ret)
goto err0;
return 0;
}
+static void dwc3_gadget_run(struct dwc3 *dwc)
+{
+ dwc3_writel(dwc->regs, DWC3_DCTL, DWC3_DCTL_RUN_STOP);
+ mdelay(100);
+}
+
static void dwc3_core_exit_mode(struct dwc3 *dwc)
{
switch (dwc->dr_mode) {
/* do nothing */
break;
}
+
+ /*
+ * switch back to peripheral mode
+ * This enables the phy to enter idle and then, if enabled, suspend.
+ */
+ dwc3_set_mode(dwc, DWC3_GCTL_PRTCAP_DEVICE);
+ dwc3_gadget_run(dwc);
}
#define DWC3_ALIGN_MASK (16 - 1)
int dwc3_uboot_init(struct dwc3_device *dwc3_dev)
{
struct dwc3 *dwc;
- struct device *dev;
+ struct device *dev = NULL;
u8 lpm_nyet_threshold;
u8 tx_de_emphasis;
u8 hird_threshold;
void *mem;
- mem = devm_kzalloc(dev, sizeof(*dwc) + DWC3_ALIGN_MASK, GFP_KERNEL);
+ mem = devm_kzalloc((struct udevice *)dev,
+ sizeof(*dwc) + DWC3_ALIGN_MASK, GFP_KERNEL);
if (!mem)
return -ENOMEM;
MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>");
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("DesignWare USB3 DRD Controller Driver");
+
+#if CONFIG_IS_ENABLED(PHY) && CONFIG_IS_ENABLED(DM_USB)
+int dwc3_setup_phy(struct udevice *dev, struct phy **array, int *num_phys)
+{
+ int i, ret, count;
+ struct phy *usb_phys;
+
+ /* Return if no phy declared */
+ if (!dev_read_prop(dev, "phys", NULL))
+ return 0;
+ count = dev_count_phandle_with_args(dev, "phys", "#phy-cells");
+ if (count <= 0)
+ return count;
+
+ usb_phys = devm_kcalloc(dev, count, sizeof(struct phy),
+ GFP_KERNEL);
+ if (!usb_phys)
+ return -ENOMEM;
+
+ for (i = 0; i < count; i++) {
+ ret = generic_phy_get_by_index(dev, i, &usb_phys[i]);
+ if (ret && ret != -ENOENT) {
+ pr_err("Failed to get USB PHY%d for %s\n",
+ i, dev->name);
+ return ret;
+ }
+ }
+
+ for (i = 0; i < count; i++) {
+ ret = generic_phy_init(&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 < count; i++) {
+ ret = generic_phy_power_on(&usb_phys[i]);
+ if (ret) {
+ pr_err("Can't power USB PHY%d for %s\n",
+ i, dev->name);
+ goto phys_poweron_err;
+ }
+ }
+
+ *array = usb_phys;
+ *num_phys = count;
+ return 0;
+
+phys_poweron_err:
+ for (i = count - 1; i >= 0; i--)
+ generic_phy_power_off(&usb_phys[i]);
+
+ for (i = 0; i < count; i++)
+ generic_phy_exit(&usb_phys[i]);
+
+ return ret;
+
+phys_init_err:
+ for (; i >= 0; i--)
+ generic_phy_exit(&usb_phys[i]);
+
+ return ret;
+}
+
+int dwc3_shutdown_phy(struct udevice *dev, struct phy *usb_phys, int num_phys)
+{
+ int i, ret;
+
+ for (i = 0; i < num_phys; i++) {
+ if (!generic_phy_valid(&usb_phys[i]))
+ continue;
+
+ ret = generic_phy_power_off(&usb_phys[i]);
+ ret |= generic_phy_exit(&usb_phys[i]);
+ if (ret) {
+ pr_err("Can't shutdown USB PHY%d for %s\n",
+ i, dev->name);
+ }
+ }
+
+ return 0;
+}
+#endif
+
+#if CONFIG_IS_ENABLED(DM_USB)
+void dwc3_of_parse(struct dwc3 *dwc)
+{
+ const u8 *tmp;
+ struct udevice *dev = dwc->dev;
+ u8 lpm_nyet_threshold;
+ u8 tx_de_emphasis;
+ u8 hird_threshold;
+
+ /* default to highest possible threshold */
+ lpm_nyet_threshold = 0xff;
+
+ /* default to -3.5dB de-emphasis */
+ tx_de_emphasis = 1;
+
+ /*
+ * default to assert utmi_sleep_n and use maximum allowed HIRD
+ * threshold value of 0b1100
+ */
+ hird_threshold = 12;
+
+ dwc->has_lpm_erratum = dev_read_bool(dev,
+ "snps,has-lpm-erratum");
+ tmp = dev_read_u8_array_ptr(dev, "snps,lpm-nyet-threshold", 1);
+ if (tmp)
+ lpm_nyet_threshold = *tmp;
+
+ dwc->is_utmi_l1_suspend = dev_read_bool(dev,
+ "snps,is-utmi-l1-suspend");
+ tmp = dev_read_u8_array_ptr(dev, "snps,hird-threshold", 1);
+ if (tmp)
+ hird_threshold = *tmp;
+
+ dwc->disable_scramble_quirk = dev_read_bool(dev,
+ "snps,disable_scramble_quirk");
+ dwc->u2exit_lfps_quirk = dev_read_bool(dev,
+ "snps,u2exit_lfps_quirk");
+ dwc->u2ss_inp3_quirk = dev_read_bool(dev,
+ "snps,u2ss_inp3_quirk");
+ dwc->req_p1p2p3_quirk = dev_read_bool(dev,
+ "snps,req_p1p2p3_quirk");
+ dwc->del_p1p2p3_quirk = dev_read_bool(dev,
+ "snps,del_p1p2p3_quirk");
+ dwc->del_phy_power_chg_quirk = dev_read_bool(dev,
+ "snps,del_phy_power_chg_quirk");
+ dwc->lfps_filter_quirk = dev_read_bool(dev,
+ "snps,lfps_filter_quirk");
+ dwc->rx_detect_poll_quirk = dev_read_bool(dev,
+ "snps,rx_detect_poll_quirk");
+ dwc->dis_u3_susphy_quirk = dev_read_bool(dev,
+ "snps,dis_u3_susphy_quirk");
+ dwc->dis_u2_susphy_quirk = dev_read_bool(dev,
+ "snps,dis_u2_susphy_quirk");
+ dwc->tx_de_emphasis_quirk = dev_read_bool(dev,
+ "snps,tx_de_emphasis_quirk");
+ tmp = dev_read_u8_array_ptr(dev, "snps,tx_de_emphasis", 1);
+ if (tmp)
+ tx_de_emphasis = *tmp;
+
+ dwc->lpm_nyet_threshold = lpm_nyet_threshold;
+ dwc->tx_de_emphasis = tx_de_emphasis;
+
+ dwc->hird_threshold = hird_threshold
+ | (dwc->is_utmi_l1_suspend << 4);
+}
+
+int dwc3_init(struct dwc3 *dwc)
+{
+ int ret;
+
+ dwc3_cache_hwparams(dwc);
+
+ ret = dwc3_alloc_event_buffers(dwc, DWC3_EVENT_BUFFERS_SIZE);
+ if (ret) {
+ dev_err(dwc->dev, "failed to allocate event buffers\n");
+ return -ENOMEM;
+ }
+
+ ret = dwc3_core_init(dwc);
+ if (ret) {
+ dev_err(dev, "failed to initialize core\n");
+ goto core_fail;
+ }
+
+ ret = dwc3_event_buffers_setup(dwc);
+ if (ret) {
+ dev_err(dwc->dev, "failed to setup event buffers\n");
+ goto event_fail;
+ }
+
+ ret = dwc3_core_init_mode(dwc);
+ if (ret)
+ goto mode_fail;
+
+ return 0;
+
+mode_fail:
+ dwc3_event_buffers_cleanup(dwc);
+
+event_fail:
+ dwc3_core_exit(dwc);
+
+core_fail:
+ dwc3_free_event_buffers(dwc);
+
+ return ret;
+}
+
+void dwc3_remove(struct dwc3 *dwc)
+{
+ dwc3_core_exit_mode(dwc);
+ dwc3_event_buffers_cleanup(dwc);
+ dwc3_free_event_buffers(dwc);
+ dwc3_core_exit(dwc);
+ kfree(dwc->mem);
+}
+#endif
projects / oweals / u-boot.git / blobdiff