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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2015 Advanced Micro Devices, Inc.
* Copyright (C) 2015 Intel Corp.
*
* 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.
*/
#ifndef __PI_STONEYRIDGE_NORTHBRIDGE_H__
#define __PI_STONEYRIDGE_NORTHBRIDGE_H__
#include <arch/io.h>
#include <device/device.h>
/* D18F0 - HT Configuration Registers */
#define D18F0_NODE_ID 0x60
#define D18F0_CPU_CNT 0x62 /* BKDG defines as a field in DWORD 0x60 */
# define CPU_CNT_MASK 0x1f /* CpuCnt + 1 = no. CPUs */
/* D18F1 - Address Map Registers */
#define D18F1_DRAM_HOLE 0xf0
# define DRAM_HOIST_VALID (1 << 1)
# define DRAM_HOLE_VALID (1 << 0)
enum {
/* SMM handler area. */
SMM_SUBREGION_HANDLER,
/* SMM cache region. */
SMM_SUBREGION_CACHE,
/* Chipset specific area. */
SMM_SUBREGION_CHIPSET,
/* Total sub regions supported. */
SMM_SUBREGION_NUM,
};
/*
* Fills in the arguments for the entire SMM region covered by chipset
* protections. e.g. TSEG.
*/
void smm_region_info(void **start, size_t *size);
/*
* Fills in the start and size for the requested SMM subregion. Returns
* 0 on susccess, < 0 on failure.
*/
int smm_subregion(int sub, void **start, size_t *size);
void domain_enable_resources(device_t dev);
void domain_read_resources(device_t dev);
void domain_set_resources(device_t dev);
void fam15_finalize(void *chip_info);
void setup_uma_memory(void);
#endif /* __PI_STONEYRIDGE_NORTHBRIDGE_H__ */
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