[U-Boot] [PATCH 1/4] asm: dma-mapping.h: Fix dma mapping functions

[Tom Rini <trini@konsulko.com>]

On Fri, Nov 15, 2019 at 05:25:02PM +0530, Vignesh Raghavendra wrote:

> Subsystems such as USB expect dma_map_single() and dma_unmap_single() to
> do dcache flush/invalidate operations as required. For example, see
> drivers/usb/gadget/udc/udc-core.c::usb_gadget_map_request().
> Currently drivers do this locally, (see drivers/usb/dwc3/ep0.c,
> drivers/mtd/nand/raw/denali.c etc..)
> Update arch specific dma_map_single() and dma_unmap_single() APIs to do
> cache flush/invalidate  operations, so that drivers need not implement
> them locally.
> 
> Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
> Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com>
> Reviewed-by: Rick Chen <rick@andestech.com>
> ---
>  arch/arm/include/asm/dma-mapping.h   | 22 ++++++++++++++++++++--
>  arch/nds32/include/asm/dma-mapping.h | 22 ++++++++++++++++++++--
>  arch/riscv/include/asm/dma-mapping.h | 22 ++++++++++++++++++++--
>  arch/x86/include/asm/dma-mapping.h   | 22 ++++++++++++++++++++--
>  4 files changed, 80 insertions(+), 8 deletions(-)

This throws warnings on am335x_evm, please re-check and resubmit,
thanks.

-- 
Tom
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