dm: i2c: Add I2C emulation driver for sandbox

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> Reviewed-by: Masahiro Yamada <yamada.m@jp.panasonic.com>

dm: i2c: Add I2C emulation driver for sandbox
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> Reviewed-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Simon Glass
1 parent 63656b762e
Showing 3 changed files with 16 additions and 0 deletions Side-by-side Diff
drivers/i2c/Makefile
drivers/i2c/i2c-emul-uclass.c
include/dm/uclass-id.h
@@ -27,6 +27,7 @@
 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
+/*
+ * 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",
+};
@@ -19,6 +19,7 @@
 	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 */
...	...	@@ -27,6 +27,7 @@
27	27	obj-$(CONFIG_SYS_I2C_PPC4XX) += ppc4xx_i2c.o
28	28	obj-$(CONFIG_SYS_I2C_RCAR) += rcar_i2c.o
29	29	obj-$(CONFIG_SYS_I2C_S3C24X0) += s3c24x0_i2c.o
	30	+obj-$(CONFIG_SYS_I2C_SANDBOX) += i2c-emul-uclass.o
30	31	obj-$(CONFIG_SYS_I2C_SH) += sh_i2c.o
31	32	obj-$(CONFIG_SYS_I2C_SOFT) += soft_i2c.o
32	33	obj-$(CONFIG_SYS_I2C_TEGRA) += tegra_i2c.o
	1	+/*
	2	+ * Copyright (c) 2014 Google, Inc
	3	+ *
	4	+ * SPDX-License-Identifier: GPL-2.0+
	5	+ */
	6	+
	7	+#include <common.h>
	8	+#include <dm.h>
	9	+#include <i2c.h>
	10	+
	11	+UCLASS_DRIVER(i2c_emul) = {
	12	+ .id = UCLASS_I2C_EMUL,
	13	+ .name = "i2c_emul",
	14	+};
...	...	@@ -19,6 +19,7 @@
19	19	UCLASS_TEST_FDT,
20	20	UCLASS_TEST_BUS,
21	21	UCLASS_SPI_EMUL, /* sandbox SPI device emulator */
	22	+ UCLASS_I2C_EMUL, /* sandbox I2C device emulator */
22	23	UCLASS_SIMPLE_BUS,
23	24
24	25	/* U-Boot uclasses start here */