Add a misc driver for MUSB wrapper, so that based on dr_mode the
USB devices can bind to USB host or USB device drivers.
Signed-off-by: Mugunthan V N <mugunthan...@ti.com>
Reviewed-by: Tom Rini <tr...@konsulko.com>
---
drivers/usb/musb-new/Kconfig | 9 ++++++
drivers/usb/musb-new/Makefile | 1 +
drivers/usb/musb-new/ti-musb.c | 64 ++++++++++++++++++++++++++++++++++++++++++
3 files changed, 74 insertions(+)
create mode 100644 drivers/usb/musb-new/ti-musb.c
diff --git a/drivers/usb/musb-new/Kconfig b/drivers/usb/musb-new/Kconfig
index c264859b6c..caba42c26f 100644
--- a/drivers/usb/musb-new/Kconfig
+++ b/drivers/usb/musb-new/Kconfig
@@ -14,6 +14,15 @@ config USB_MUSB_GADGET
help
Enables the MUSB USB dual-role controller in gadget mode.
+config USB_MUSB_TI
+ bool "Enable TI OTG USB controller"
+ depends on DM_USB
+ default n
+ help
+ Say y here to enable support for the dual role high
+ speed USB controller based on the Mentor Graphics
+ silicon IP.
+
if USB_MUSB_HOST || USB_MUSB_GADGET
config USB_MUSB_PIC32
diff --git a/drivers/usb/musb-new/Makefile b/drivers/usb/musb-new/Makefile
index df1c3c8a45..296f230fbf 100644
--- a/drivers/usb/musb-new/Makefile
+++ b/drivers/usb/musb-new/Makefile
@@ -12,6 +12,7 @@ obj-$(CONFIG_USB_MUSB_AM35X) += am35x.o
obj-$(CONFIG_USB_MUSB_OMAP2PLUS) += omap2430.o
obj-$(CONFIG_USB_MUSB_PIC32) += pic32.o
obj-$(CONFIG_USB_MUSB_SUNXI) += sunxi.o
+obj-$(CONFIG_USB_MUSB_TI) += ti-musb.o
ccflags-y := $(call cc-option,-Wno-unused-variable) \
$(call cc-option,-Wno-unused-but-set-variable) \
diff --git a/drivers/usb/musb-new/ti-musb.c b/drivers/usb/musb-new/ti-musb.c
new file mode 100644
index 0000000000..cf0e296bd0
--- /dev/null
+++ b/drivers/usb/musb-new/ti-musb.c
@@ -0,0 +1,64 @@
+/*
+ * MISC driver for TI MUSB Glue.
+ *
+ * (C) Copyright 2016
+ * Texas Instruments Incorporated, <www.ti.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+#include <common.h>
+#include <command.h>
+#include <console.h>
+#include <dm.h>
+#include <linux/usb/otg.h>
+#include <dm/device-internal.h>
+#include <dm/lists.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#ifdef CONFIG_DM_USB
+
+static int ti_musb_wrapper_bind(struct udevice *parent)
+{
+ const void *fdt = gd->fdt_blob;
+ int node;
+ int ret;
+
+ for (node = fdt_first_subnode(fdt, parent->of_offset); node > 0;
+ node = fdt_next_subnode(fdt, node)) {
+ struct udevice *dev;
+ const char *name = fdt_get_name(fdt, node, NULL);
+ enum usb_dr_mode dr_mode;
+ struct driver *drv;
+
+ if (strncmp(name, "usb@", 4))
+ continue;
+
+ dr_mode = usb_get_dr_mode(node);
+ switch (dr_mode) {
+ case USB_DR_MODE_PERIPHERAL:
+ /* Bind MUSB device */
+ break;
+ case USB_DR_MODE_HOST:
+ /* Bind MUSB host */
+ break;
+ default:
+ break;
+ };
+ }
+ return 0;
+}
+
+static const struct udevice_id ti_musb_ids[] = {
+ { .compatible = "ti,am33xx-usb" },
+ { }
+};
+
+U_BOOT_DRIVER(ti_musb_wrapper) = {
+ .name = "ti-musb-wrapper",
+ .id = UCLASS_MISC,
+ .of_match = ti_musb_ids,
+ .bind = ti_musb_wrapper_bind,
+};
+
+#endif /* CONFIG_DM_USB */
--
2.11.0.rc1
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