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drivers: udc: add initial support for DWC2 device controller #64943

Merged
merged 4 commits into from Dec 18, 2023
Merged

drivers: udc: add initial support for DWC2 device controller #64943

merged 4 commits into from Dec 18, 2023

Commits on Dec 15, 2023

  1. drivers: usb: add common DWC2 register header 

    This header is based on drivers/usb/device/usb_dw_registers.h and
describes registers of the DWC2 controllers IP and is intended for use
in both device controller drivers and a host controller driver. The
difference to usb_dw_registers.h is that this header does not confuse
offsets with bit positions, contains all the definitions required for
device mode, has register and bit field names identical to the databook
and no annoying underscores.

Signed-off-by: Johann Fischer <johann.fischer@nordicsemi.no>
    @jfischer-no
    jfischer-no committed Dec 15, 2023
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  2. drivers: usb: use common usb_dwc2_hw.h header 

    Use new common header and remove usb_dw_registers.h.
No functional changes, only renaming of registers and field identifiers.

Signed-off-by: Johann Fischer <johann.fischer@nordicsemi.no>
    @jfischer-no
    jfischer-no committed Dec 15, 2023
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  3. drivers: udc: add initial support for DWC2 controller 

    The driver currently supports only dedicated FIFO mode (with
dynfifosizing if enabled). Control, bulk and interrupt transfers are
supported, isochronous transfers are not yet supported. The driver
accesses controller registers using sys_io.h, but for debugging purposes
one can get a register map from the driver's config, similar to the
usb_dc_dw.c driver.

Initial support also has vendor quirks for the STM32F4 SoC family.
Tested on NUCLEO-F413HG.

Signed-off-by: Johann Fischer <johann.fischer@nordicsemi.no>
    @jfischer-no
    jfischer-no committed Dec 15, 2023
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  4. samples: usb shell: add DT overlay to support snps,dwc2 on nucleo_f413zh 

    Add DT overlay to be able to support and test UDC DWC2 driver
(snps,dwc2) on nucleo_f413zh board. This disables STM32 shim
driver described and configured on the SoC and board level.

Obviously,it should work with other STM32F4 boards as well and we
could have a mechanism to apply it generically using snippets.

Signed-off-by: Johann Fischer <johann.fischer@nordicsemi.no>
    @jfischer-no
    jfischer-no committed Dec 15, 2023
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