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usb: gadget: add Aspeed ast2600 udc driver

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Aspeed udc is compliant with USB2.0, supports USB High Speed
and Full Speed, backward compatible with USB1.1.

Supports independent DMA channel for each generic endpoint.
Supports 32/256 stages descriptor mode for all generic endpoints.

This driver supports full functionality including single/multiple
stages descriptor mode, and exposes 1 UDC gadget driver.

Signed-off-by: Neal Liu <neal_liu@aspeedtech.com>
Link: https://lore.kernel.org/r/20220523030134.2977116-2-neal_liu@aspeedtech.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Neal Liu 2022-05-23 11:01:32 +08:00 committed by Greg Kroah-Hartman
parent e146caf303
commit 055276c132
4 changed files with 1617 additions and 0 deletions
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7
MAINTAINERS
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@ -3136,6 +3136,13 @@ S: Maintained
F: Documentation/devicetree/bindings/media/aspeed-video.txt
F: drivers/media/platform/aspeed/
ASPEED USB UDC DRIVER
M: Neal Liu <neal_liu@aspeedtech.com>
L: linux-aspeed@lists.ozlabs.org (moderated for non-subscribers)
S: Maintained
F: Documentation/devicetree/bindings/usb/aspeed,udc.yaml
F: drivers/usb/gadget/udc/aspeed_udc.c
ASUS NOTEBOOKS AND EEEPC ACPI/WMI EXTRAS DRIVERS
M: Corentin Chary <corentin.chary@gmail.com>
L: acpi4asus-user@lists.sourceforge.net

13
drivers/usb/gadget/udc/Kconfig
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@ -463,6 +463,19 @@ config USB_TEGRA_XUDC
dynamically linked module called "tegra_xudc" and force all
gadget drivers to also be dynamically linked.
config USB_ASPEED_UDC
tristate "Aspeed UDC driver support"
depends on ARCH_ASPEED || COMPILE_TEST
depends on USB_LIBCOMPOSITE
help
Enables Aspeed USB2.0 Device Controller driver for AST260x
family SoCs. The controller supports 1 control endpoint and
4 programmable endpoints.
Say "y" to link the driver statically, or "m" to build a
dynamically linked module called "aspeed_udc" and force all
gadget drivers to also be dynamically linked.
source "drivers/usb/gadget/udc/aspeed-vhub/Kconfig"
#

1
drivers/usb/gadget/udc/Makefile
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@ -40,5 +40,6 @@ obj-$(CONFIG_USB_GR_UDC) += gr_udc.o
obj-$(CONFIG_USB_GADGET_XILINX) += udc-xilinx.o
obj-$(CONFIG_USB_SNP_UDC_PLAT) += snps_udc_plat.o
obj-$(CONFIG_USB_ASPEED_VHUB) += aspeed-vhub/
obj-$(CONFIG_USB_ASPEED_UDC) += aspeed_udc.o
obj-$(CONFIG_USB_BDC_UDC) += bdc/
obj-$(CONFIG_USB_MAX3420_UDC) += max3420_udc.o

1596
drivers/usb/gadget/udc/aspeed_udc.c Normal file
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