soc/intel/skylake: Define early smbus functions
Define early smbus functions that can be used by mainboard to fetch spd. Change-Id: Id170b2b8e6fb3ebb147f37bf433a27d1162dc11c Signed-off-by: Naresh G Solanki <naresh.solanki@intel.com> Reviewed-on: https://review.coreboot.org/17433 Tested-by: build bot (Jenkins) Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
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@ -45,6 +45,7 @@ romstage-y += pei_data.c
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romstage-y += pmutil.c
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romstage-$(CONFIG_PLATFORM_USES_FSP2_0) += reset.c
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romstage-y += smbus_common.c
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romstage-y += early_smbus.c
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romstage-y += tsc_freq.c
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romstage-$(CONFIG_UART_DEBUG) += uart_debug.c
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@ -0,0 +1,30 @@
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/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2016 Intel Corporation.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <console/console.h>
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#include <device/smbus_def.h>
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#include <device/early_smbus.h>
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#include <soc/smbus.h>
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#include <soc/iomap.h>
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u8 smbus_read_byte(u32 smbus_dev, u8 addr, u8 offset)
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{
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return do_smbus_read_byte(SMBUS_BASE_ADDRESS, addr, offset);
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}
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u8 smbus_write_byte(u32 smbus_dev, u8 addr, u8 offset, u8 value)
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{
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return do_smbus_write_byte(SMBUS_BASE_ADDRESS, addr, offset, value);
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}
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