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 mugunthanvnm@ti.com Reviewed-by: Tom Rini trini@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 */