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/*
* This file is part of the coreboot project.
*
* Copyright 2017 Google, Inc.
*
* 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 <arch/io.h>
#include <bootstate.h>
#include <console/console.h>
#include <soc/pci_devs.h>
#include <stdint.h>
#define PCI_ME_HFSTS1 0x40
#define PCI_ME_HFSTS2 0x48
#define PCI_ME_HFSTS3 0x60
#define PCI_ME_HFSTS4 0x64
#define PCI_ME_HFSTS5 0x68
#define PCI_ME_HFSTS6 0x6c
static uint32_t dump_status(int index, int reg_addr)
{
uint32_t reg = pci_read_config32(CSE_DEV, reg_addr);
printk(BIOS_DEBUG, "CSE FWSTS%d: 0x%08x\n", index, reg);
return reg;
}
static void dump_cse_state(void *unused)
{
uint32_t fwsts1;
fwsts1 = dump_status(1, PCI_ME_HFSTS1);
dump_status(2, PCI_ME_HFSTS2);
dump_status(3, PCI_ME_HFSTS3);
dump_status(4, PCI_ME_HFSTS4);
dump_status(5, PCI_ME_HFSTS5);
dump_status(6, PCI_ME_HFSTS6);
/* Minimal decoding is done here in order to call out most important
pieces. Manufacturing mode needs to be locked down prior to shipping
the product so it's called out explicitly. */
printk(BIOS_DEBUG, "ME: Manufacturing Mode : %s\n",
(fwsts1 & (1 << 0x4)) ? "YES" : "NO");
}
BOOT_STATE_INIT_ENTRY(BS_OS_RESUME, BS_ON_ENTRY, dump_cse_state, NULL);
BOOT_STATE_INIT_ENTRY(BS_PAYLOAD_LOAD, BS_ON_EXIT, dump_cse_state, NULL);
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