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* Create API to map between CPU physical and bus addressesStephen Warren2015-04-141-0/+8
| | | | | | | | | | | | | On some SoCs, DMA-capable peripherals see a different address space to the CPU's physical address space. Create an API to allow platform-agnostic drivers to convert between the two address spaces when programming DMA operations. This API will exist on all platforms, but will have a dummy implementation when this feature is not required. Other platforms will enable CONFIG_PHYS_TO_BUS and provide the required implementation. Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
* dm: Expand and complete Kconfig in drivers/Simon Glass2015-02-121-0/+2
| | | | | | | | Expand the help messages for each driver. Add missing Kconfig for I2C, SPI flash and thermal. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* dm: Add Kconfig for driver/demoSimon Glass2015-02-121-0/+2
| | | | | | | Add a suitable Kconfig for this directory. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* kconfig: add blank Kconfig filesMasahiro Yamada2014-09-241-0/+51
This would be useful to start moving various config options. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org>
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