In order to test I2C we need some sort of emulation interface. Add hooks to allow a driver to emulate an I2C device for sandbox.
Signed-off-by: Simon Glass sjg@chromium.org Acked-by: Heiko Schocher hs@denx.de ---
Changes in v4: None Changes in v3: None Changes in v2: None
drivers/i2c/Makefile | 1 + drivers/i2c/i2c-emul-uclass.c | 14 ++++++++++++++ include/dm/uclass-id.h | 1 + 3 files changed, 16 insertions(+) create mode 100644 drivers/i2c/i2c-emul-uclass.c
diff --git a/drivers/i2c/Makefile b/drivers/i2c/Makefile index 063e097..5a93473 100644 --- a/drivers/i2c/Makefile +++ b/drivers/i2c/Makefile @@ -27,6 +27,7 @@ obj-$(CONFIG_SYS_I2C_OMAP34XX) += omap24xx_i2c.o obj-$(CONFIG_SYS_I2C_PPC4XX) += ppc4xx_i2c.o obj-$(CONFIG_SYS_I2C_RCAR) += rcar_i2c.o obj-$(CONFIG_SYS_I2C_S3C24X0) += s3c24x0_i2c.o +obj-$(CONFIG_SYS_I2C_SANDBOX) += i2c-emul-uclass.o obj-$(CONFIG_SYS_I2C_SH) += sh_i2c.o obj-$(CONFIG_SYS_I2C_SOFT) += soft_i2c.o obj-$(CONFIG_SYS_I2C_TEGRA) += tegra_i2c.o diff --git a/drivers/i2c/i2c-emul-uclass.c b/drivers/i2c/i2c-emul-uclass.c new file mode 100644 index 0000000..aa89f95 --- /dev/null +++ b/drivers/i2c/i2c-emul-uclass.c @@ -0,0 +1,14 @@ +/* + * Copyright (c) 2014 Google, Inc + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <dm.h> +#include <i2c.h> + +UCLASS_DRIVER(i2c_emul) = { + .id = UCLASS_I2C_EMUL, + .name = "i2c_emul", +}; diff --git a/include/dm/uclass-id.h b/include/dm/uclass-id.h index 01866c3..16e4224 100644 --- a/include/dm/uclass-id.h +++ b/include/dm/uclass-id.h @@ -19,6 +19,7 @@ enum uclass_id { UCLASS_TEST_FDT, UCLASS_TEST_BUS, UCLASS_SPI_EMUL, /* sandbox SPI device emulator */ + UCLASS_I2C_EMUL, /* sandbox I2C device emulator */ UCLASS_SIMPLE_BUS,
/* U-Boot uclasses start here */