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| author | Simon Glass <sjg@chromium.org> | 2014-10-13 23:41:53 -0600 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2014-10-22 10:36:46 -0600 |
| commit | c60e1f254747ac650f8290e5debcf8ad1567584b (patch) | |
| tree | 08f5d2749d213bb008f84caaf9350479aa5ef234 /drivers | |
| parent | d7af6a485126a0d08a0a9a56721e42a3e78b5b53 (diff) | |
| download | u-boot-imx-c60e1f254747ac650f8290e5debcf8ad1567584b.zip u-boot-imx-c60e1f254747ac650f8290e5debcf8ad1567584b.tar.gz u-boot-imx-c60e1f254747ac650f8290e5debcf8ad1567584b.tar.bz2 | |
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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/spi/Makefile | 1 | ||||
| -rw-r--r-- | drivers/spi/spi-emul-uclass.c | 15 |
2 files changed, 16 insertions, 0 deletions
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 <common.h> +#include <dm.h> +#include <spi.h> +#include <spi_flash.h> + +UCLASS_DRIVER(spi_emul) = { + .id = UCLASS_SPI_EMUL, + .name = "spi_emul", +}; |