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authorSimon Glass <sjg@chromium.org>2014-10-13 23:41:53 -0600
committerSimon Glass <sjg@chromium.org>2014-10-22 10:36:46 -0600
commitc60e1f254747ac650f8290e5debcf8ad1567584b (patch)
tree08f5d2749d213bb008f84caaf9350479aa5ef234 /drivers/serial
parentd7af6a485126a0d08a0a9a56721e42a3e78b5b53 (diff)
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dm: sandbox: Add a SPI emulation uclass
U-Boot includes a SPI emulation driver already but it is not explicit, and is hidden in the SPI flash code. Conceptually with sandbox's SPI implementation we have a layer which creates SPI bus transitions and a layer which interprets them, currently only for SPI flash. The latter is actually an emulation, and it should be possible to add more than one emulation - not just SPI flash. Add a SPI emulation uclass so that other emulations can be plugged in to support different types of emulated devices on difference buses/chip selects. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
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