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https://github.com/brain-hackers/u-boot-brain
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2936df1f11
New I2C framework, introduced after v2013.07 final release, imposed I2C code adjustment for some Samsung boards - namely Trats, GONI and Universal_c210. Those boards were using schematic based I2C enumeration (I2C_5, I2C_9). However, new I2C framework imposes usage of logical I2C adapters numbering (e.g. I2C_0, I2C_1, etc). Additionally, I2C_GET_* macros were replaced with i2c_*_bus_num() functions. Trats board gained definition of second soft I2C adapter. Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Cc: Minkyu Kang <mk7.kang@samsung.com> Cc: Heiko Schocher <hs@denx.de>
48 lines
762 B
C
48 lines
762 B
C
/*
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* Copyright (C) 2012 Samsung Electronics
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* Lukasz Majewski <l.majewski@samsung.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <i2c.h>
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/* Handle multiple I2C buses instances */
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int get_multi_scl_pin(void)
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{
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unsigned int bus = i2c_get_bus_num();
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switch (bus) {
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case I2C_0:
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return CONFIG_SOFT_I2C_I2C5_SCL;
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case I2C_1:
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return CONFIG_SOFT_I2C_I2C9_SCL;
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default:
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printf("I2C_%d not supported!\n", bus);
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};
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return 0;
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}
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int get_multi_sda_pin(void)
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{
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unsigned int bus = i2c_get_bus_num();
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switch (bus) {
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case I2C_0:
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return CONFIG_SOFT_I2C_I2C5_SDA;
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case I2C_1:
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return CONFIG_SOFT_I2C_I2C9_SDA;
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default:
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printf("I2C_%d not supported!\n", bus);
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};
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return 0;
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}
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int multi_i2c_init(void)
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{
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return 0;
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}
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