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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 <amdblocks/psp.h>
#define PSP_MAILBOX_OFFSET 0x10570
#define MSR_CU_CBBCFG 0xc00110a2
void *soc_get_mbox_address(void)
{
uintptr_t psp_mmio;
psp_mmio = rdmsr(MSR_CU_CBBCFG).lo;
if (psp_mmio == 0xffffffff) {
printk(BIOS_WARNING, "PSP: MSR_CU_CBBCFG uninitialized\n");
return 0;
}
return (void *)(psp_mmio + PSP_MAILBOX_OFFSET);
}
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