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author | fishsoupisgood <github@madingley.org> | 2019-04-29 01:17:54 +0100 |
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committer | fishsoupisgood <github@madingley.org> | 2019-05-27 03:43:43 +0100 |
commit | 3f2546b2ef55b661fd8dd69682b38992225e86f6 (patch) | |
tree | 65ca85f13617aee1dce474596800950f266a456c /roms/u-boot/board/samsung/common/multi_i2c.c | |
download | qemu-master.tar.gz qemu-master.tar.bz2 qemu-master.zip |
Diffstat (limited to 'roms/u-boot/board/samsung/common/multi_i2c.c')
-rw-r--r-- | roms/u-boot/board/samsung/common/multi_i2c.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/roms/u-boot/board/samsung/common/multi_i2c.c b/roms/u-boot/board/samsung/common/multi_i2c.c new file mode 100644 index 00000000..71c32c0b --- /dev/null +++ b/roms/u-boot/board/samsung/common/multi_i2c.c @@ -0,0 +1,59 @@ +/* + * Copyright (C) 2012 Samsung Electronics + * Lukasz Majewski <l.majewski@samsung.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <i2c.h> + +#ifndef CONFIG_SOFT_I2C_I2C10_SCL +#define CONFIG_SOFT_I2C_I2C10_SCL 0 +#endif + +#ifndef CONFIG_SOFT_I2C_I2C10_SDA +#define CONFIG_SOFT_I2C_I2C10_SDA 0 +#endif + +/* Handle multiple I2C buses instances */ +int get_multi_scl_pin(void) +{ + unsigned int bus = i2c_get_bus_num(); + + switch (bus) { + case I2C_0: + return CONFIG_SOFT_I2C_I2C5_SCL; + case I2C_1: + return CONFIG_SOFT_I2C_I2C9_SCL; + case I2C_2: + return CONFIG_SOFT_I2C_I2C10_SCL; + default: + printf("I2C_%d not supported!\n", bus); + }; + + return 0; +} + +int get_multi_sda_pin(void) +{ + unsigned int bus = i2c_get_bus_num(); + + switch (bus) { + case I2C_0: + return CONFIG_SOFT_I2C_I2C5_SDA; + case I2C_1: + return CONFIG_SOFT_I2C_I2C9_SDA; + case I2C_2: + return CONFIG_SOFT_I2C_I2C10_SDA; + default: + printf("I2C_%d not supported!\n", bus); + }; + + return 0; +} + +int multi_i2c_init(void) +{ + return 0; +} |