From c60e1f254747ac650f8290e5debcf8ad1567584b Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Mon, 13 Oct 2014 23:41:53 -0600 Subject: 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 Reviewed-by: Jagannadha Sutradharudu Teki --- drivers/spi/Makefile | 1 + drivers/spi/spi-emul-uclass.c | 15 +++++++++++++++ 2 files changed, 16 insertions(+) create mode 100644 drivers/spi/spi-emul-uclass.c (limited to 'drivers') diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile index d1f1dd0..a1de028 100644 --- a/drivers/spi/Makefile +++ b/drivers/spi/Makefile @@ -8,6 +8,7 @@ # There are many options which enable SPI, so make this library available ifdef CONFIG_DM_SPI obj-y += spi-uclass.o +obj-$(CONFIG_SANDBOX) += spi-emul-uclass.o else obj-y += spi.o endif diff --git a/drivers/spi/spi-emul-uclass.c b/drivers/spi/spi-emul-uclass.c new file mode 100644 index 0000000..b436a0e --- /dev/null +++ b/drivers/spi/spi-emul-uclass.c @@ -0,0 +1,15 @@ +/* + * Copyright (c) 2014 Google, Inc + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include +#include +#include +#include + +UCLASS_DRIVER(spi_emul) = { + .id = UCLASS_SPI_EMUL, + .name = "spi_emul", +}; -- cgit v1.1