@@ -79,6 +79,16 @@ config USB_XHCI_DRA7XX_INDEX
Select the DRA7XX xHCI USB index.
Current supported values: 0, 1.
+config USB_DM_XHCI_OMAP
+ bool "Support for OMAP family on-chip xHCI USB controller (DM version)"
+ depends on DM_USB
+ depends on ARCH_OMAP2PLUS
+ default y if DRA7XX
+ help
+ Enables support for the on-chip xHCI controller on TI OMAP family SoCs
+ using the Driver Model.
+ This driver provides the glue logic to probe the generic dwc3 driver.
+
config USB_XHCI_FSL
bool "Support for NXP Layerscape on-chip xHCI USB controller"
default y if ARCH_LS1021A || FSL_LSCH3 || FSL_LSCH2
@@ -59,6 +59,7 @@ obj-$(CONFIG_USB_XHCI_OMAP) += xhci-omap.o
obj-$(CONFIG_USB_XHCI_PCI) += xhci-pci.o
obj-$(CONFIG_USB_XHCI_RCAR) += xhci-rcar.o
obj-$(CONFIG_USB_XHCI_STI) += dwc3-sti-glue.o
+obj-$(CONFIG_USB_DM_XHCI_OMAP) += dwc3-omap-glue.o
# designware
obj-$(CONFIG_USB_DWC2) += dwc2.o
new file mode 100644
@@ -0,0 +1,60 @@
+/*
+ * OMAP5 family DWC3 specific Glue layer
+ *
+ * Copyright (c) 2017
+ * Jean-Jacques Hiblot <jjhiblot@ti.com>
+ * based on dwc3-sti-glue
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <errno.h>
+#include <dm/of_access.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static inline bool is_ofnode_compatible(ofnode node, const char *compat)
+{
+ const void *fdt = gd->fdt_blob;
+
+ if (ofnode_is_np(node))
+ return of_device_is_compatible(ofnode_to_np(node), compat,
+ NULL, NULL);
+ else
+ return !fdt_node_check_compatible(fdt, ofnode_to_offset(node),
+ compat);
+}
+
+static int omap5_dwc3_glue_bind(struct udevice *dev)
+{
+ bool found = false;
+ ofnode node;
+
+ dev_for_each_subnode(node, dev) {
+ if (is_ofnode_compatible(node, "snps,dwc3")) {
+ found = true;
+ break;
+ }
+ }
+
+ if (!found) {
+ dev_err(dev, "Can't find subnode compatible with dwc3");
+ return -ENOENT;
+ }
+
+ return dm_scan_fdt_dev(dev);
+}
+
+static const struct udevice_id omap5_dwc3_glue_ids[] = {
+ { .compatible = "ti,dwc3" },
+ { }
+};
+
+U_BOOT_DRIVER(dwc3_omap5_glue) = {
+ .name = "dwc3_omap5_glue",
+ .id = UCLASS_MISC,
+ .of_match = omap5_dwc3_glue_ids,
+ .bind = omap5_dwc3_glue_bind,
+};
The omap5 uses the dwc3. The dwc3 supports the driver model but it requires some glue logic to load the the driver. Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com> --- Changes in v3: - use the live tree API in the omap5 glue logic Changes in v2: None drivers/usb/host/Kconfig | 10 +++++++ drivers/usb/host/Makefile | 1 + drivers/usb/host/dwc3-omap-glue.c | 60 +++++++++++++++++++++++++++++++++++++++ 3 files changed, 71 insertions(+) create mode 100644 drivers/usb/host/dwc3-omap-glue.c