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>
This commit is contained in:
Naresh G Solanki 2016-11-15 16:40:44 +05:30 committed by Martin Roth
parent cd7068703e
commit 006c1e8778
2 changed files with 31 additions and 0 deletions

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@ -45,6 +45,7 @@ romstage-y += pei_data.c
romstage-y += pmutil.c
romstage-$(CONFIG_PLATFORM_USES_FSP2_0) += reset.c
romstage-y += smbus_common.c
romstage-y += early_smbus.c
romstage-y += tsc_freq.c
romstage-$(CONFIG_UART_DEBUG) += uart_debug.c

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@ -0,0 +1,30 @@
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2016 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <console/console.h>
#include <device/smbus_def.h>
#include <device/early_smbus.h>
#include <soc/smbus.h>
#include <soc/iomap.h>
u8 smbus_read_byte(u32 smbus_dev, u8 addr, u8 offset)
{
return do_smbus_read_byte(SMBUS_BASE_ADDRESS, addr, offset);
}
u8 smbus_write_byte(u32 smbus_dev, u8 addr, u8 offset, u8 value)
{
return do_smbus_write_byte(SMBUS_BASE_ADDRESS, addr, offset, value);
}