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	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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			237 B
		
	
	
	
		
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			16 lines
		
	
	
		
			237 B
		
	
	
	
		
			C
		
	
	
	
	
	
| /*
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|  * Copyright (c) 2014 Google, Inc
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|  *
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|  * SPDX-License-Identifier:	GPL-2.0+
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|  */
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| 
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| #include <common.h>
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| #include <dm.h>
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| #include <spi.h>
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| #include <spi_flash.h>
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| 
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| UCLASS_DRIVER(spi_emul) = {
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| 	.id		= UCLASS_SPI_EMUL,
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| 	.name		= "spi_emul",
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| };
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