+// 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>
#include "linux-compat.h"
-struct dwc3 *dwc;
+static LIST_HEAD(dwc3_list);
/* -------------------------------------------------------------------------- */
-void dwc3_set_mode(struct dwc3 *dwc, u32 mode)
+static void dwc3_set_mode(struct dwc3 *dwc, u32 mode)
{
u32 reg;
{
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;
}
num = DWC3_NUM_INT(dwc->hwparams.hwparams1);
dwc->num_event_buffers = num;
- dwc->ev_buffs = devm_kzalloc(dwc->dev, sizeof(*dwc->ev_buffs) * num,
- GFP_KERNEL);
+ dwc->ev_buffs = memalign(CONFIG_SYS_CACHELINE_SIZE,
+ sizeof(*dwc->ev_buffs) * num);
if (!dwc->ev_buffs)
return -ENOMEM;
return 0;
err1:
- dma_unmap_single((void *)dwc->scratch_addr, dwc->nr_scratch *
+ dma_unmap_single((void *)(uintptr_t)dwc->scratch_addr, dwc->nr_scratch *
DWC3_SCRATCHBUF_SIZE, DMA_BIDIRECTIONAL);
err0:
if (!dwc->nr_scratch)
return;
- dma_unmap_single((void *)dwc->scratch_addr, dwc->nr_scratch *
+ dma_unmap_single((void *)(uintptr_t)dwc->scratch_addr, dwc->nr_scratch *
DWC3_SCRATCHBUF_SIZE, DMA_BIDIRECTIONAL);
kfree(dwc->scratchbuf);
}
*/
int dwc3_uboot_init(struct dwc3_device *dwc3_dev)
{
- struct device *dev;
+ struct dwc3 *dwc;
+ 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;
dwc = PTR_ALIGN(mem, DWC3_ALIGN_MASK + 1);
dwc->mem = mem;
- dwc->regs = (int *)(dwc3_dev->base + DWC3_GLOBALS_REGS_START);
+ dwc->regs = (void *)(uintptr_t)(dwc3_dev->base +
+ DWC3_GLOBALS_REGS_START);
/* default to highest possible threshold */
lpm_nyet_threshold = 0xff;
dwc->hird_threshold = hird_threshold
| (dwc->is_utmi_l1_suspend << 4);
+ dwc->index = dwc3_dev->index;
+
dwc3_cache_hwparams(dwc);
ret = dwc3_alloc_event_buffers(dwc, DWC3_EVENT_BUFFERS_SIZE);
if (ret)
goto err2;
+ list_add_tail(&dwc->list, &dwc3_list);
+
return 0;
err2:
* @index: index of this controller
*
* Performs cleanup of memory allocated in dwc3_uboot_init and other misc
- * cleanups (equivalent to dwc3_remove in linux).
+ * cleanups (equivalent to dwc3_remove in linux). index of _this_ controller
+ * should be passed and should match with the index passed in
+ * dwc3_device during init.
*
* Generally called from board file.
*/
-void dwc3_uboot_exit()
+void dwc3_uboot_exit(int index)
{
- dwc3_core_exit_mode(dwc);
- dwc3_event_buffers_cleanup(dwc);
- dwc3_free_event_buffers(dwc);
- dwc3_core_exit(dwc);
- kfree(dwc->mem);
+ struct dwc3 *dwc;
+
+ list_for_each_entry(dwc, &dwc3_list, list) {
+ if (dwc->index != index)
+ continue;
+
+ dwc3_core_exit_mode(dwc);
+ dwc3_event_buffers_cleanup(dwc);
+ dwc3_free_event_buffers(dwc);
+ dwc3_core_exit(dwc);
+ list_del(&dwc->list);
+ kfree(dwc->mem);
+ break;
+ }
+}
+
+/**
+ * dwc3_uboot_handle_interrupt - handle dwc3 core interrupt
+ * @index: index of this controller
+ *
+ * Invokes dwc3 gadget interrupts.
+ *
+ * Generally called from board file.
+ */
+void dwc3_uboot_handle_interrupt(int index)
+{
+ struct dwc3 *dwc = NULL;
+
+ list_for_each_entry(dwc, &dwc3_list, list) {
+ if (dwc->index != index)
+ continue;
+
+ dwc3_gadget_uboot_handle_interrupt(dwc);
+ break;
+ }
}
MODULE_ALIAS("platform:dwc3");
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_GADGET)
+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