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/* SPDX-License-Identifier: GPL-2.0-only */
/* This file is part of the coreboot project. */
#include <console/console.h>
#include <cpu/x86/msr.h>
#include <cpu/amd/msr.h>
#include <device/device.h>
/*************************************************
* enable the dedicated function in thatcher board.
*************************************************/
static void mainboard_enable(struct device *dev)
{
msr_t msr;
printk(BIOS_INFO, "Mainboard " CONFIG_MAINBOARD_PART_NUMBER " Enable.\n");
msr = rdmsr(LS_CFG_MSR);
msr.lo &= ~(1 << 28);
wrmsr(LS_CFG_MSR, msr);
msr = rdmsr(DC_CFG_MSR);
msr.lo &= ~(1 << 4);
msr.lo &= ~(1 << 13);
wrmsr(DC_CFG_MSR, msr);
msr = rdmsr(BU_CFG_MSR);
msr.lo &= ~(1 << 23);
wrmsr(BU_CFG_MSR, msr);
}
struct chip_operations mainboard_ops = {
.enable_dev = mainboard_enable,
};
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