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c60e1f254 dm: sandbox: Add a SPI emulation uclass ... Browse Code »

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
Reviewed-by: Jagannadha Sutradharudu Teki

Simon Glass
2014-10-23 00:36:46 +0800

spi-emul-uclass.c 237 Bytes

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/*
 * Copyright (c) 2014 Google, Inc
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <common.h>
#include <dm.h>
#include <spi.h>
#include <spi_flash.h>

UCLASS_DRIVER(spi_emul) = {
	.id		= UCLASS_SPI_EMUL,
	.name		= "spi_emul",
};