118 lines
3.4 KiB
C
118 lines
3.4 KiB
C
|
/*
|
||
|
|
* This file is part of the coreboot project.
|
||
|
|
*
|
||
|
|
* Copyright (C) 2011 Advanced Micro Devices, 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.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU General Public License
|
||
|
|
* along with this program; if not, write to the Free Software
|
||
|
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <console/console.h>
|
||
|
|
#include <device/device.h>
|
||
|
|
#include <device/pci.h>
|
||
|
|
#include <arch/io.h>
|
||
|
|
#include <boot/tables.h>
|
||
|
|
#include <cpu/x86/msr.h>
|
||
|
|
#include <cpu/amd/mtrr.h>
|
||
|
|
#include <device/pci_def.h>
|
||
|
|
#include "SBPLATFORM.h" /* Platfrom Specific Definitions */
|
||
|
|
#include "chip.h"
|
||
|
|
|
||
|
|
void set_pcie_reset(void);
|
||
|
|
void set_pcie_dereset(void);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* TODO
|
||
|
|
* SB CIMx callback
|
||
|
|
*/
|
||
|
|
void set_pcie_reset(void)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* TODO
|
||
|
|
* mainboard specific SB CIMx callback
|
||
|
|
*/
|
||
|
|
void set_pcie_dereset(void)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
uint64_t uma_memory_base, uma_memory_size;
|
||
|
|
|
||
|
|
/*************************************************
|
||
|
|
* enable the dedicated function in unionstation board.
|
||
|
|
*************************************************/
|
||
|
|
static void unionstation_enable(device_t dev)
|
||
|
|
{
|
||
|
|
printk(BIOS_INFO, "Mainboard " CONFIG_MAINBOARD_PART_NUMBER " Enable.\n");
|
||
|
|
|
||
|
|
#if (CONFIG_GFXUMA == 1)
|
||
|
|
msr_t msr, msr2;
|
||
|
|
uint32_t sys_mem;
|
||
|
|
|
||
|
|
/* TOP_MEM: the top of DRAM below 4G */
|
||
|
|
msr = rdmsr(TOP_MEM);
|
||
|
|
printk
|
||
|
|
(BIOS_INFO, "%s, TOP MEM: msr.lo = 0x%08x, msr.hi = 0x%08x\n",
|
||
|
|
__func__, msr.lo, msr.hi);
|
||
|
|
|
||
|
|
/* TOP_MEM2: the top of DRAM above 4G */
|
||
|
|
msr2 = rdmsr(TOP_MEM2);
|
||
|
|
printk
|
||
|
|
(BIOS_INFO, "%s, TOP MEM2: msr2.lo = 0x%08x, msr2.hi = 0x%08x\n",
|
||
|
|
__func__, msr2.lo, msr2.hi);
|
||
|
|
|
||
|
|
/* refer to UMA Size Consideration in Family14h BKDG. */
|
||
|
|
sys_mem = msr.lo + 0x1000000; // Ignore 16MB allocated for C6 when finding UMA size, refer MemNGetUmaSizeON()
|
||
|
|
if ((msr.hi & 0x0000000F) || (sys_mem >= 0x80000000)) {
|
||
|
|
uma_memory_size = 0x18000000; /* >= 2G memory, 384M recommended UMA */
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
if (sys_mem >= 0x40000000) {
|
||
|
|
uma_memory_size = 0x10000000; /* >= 1G memory, 256M recommended UMA */
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
uma_memory_size = 0x4000000; /* <1G memory, 64M recommended UMA */
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
uma_memory_base = msr.lo - uma_memory_size; /* TOP_MEM1 */
|
||
|
|
printk(BIOS_INFO, "%s: uma size 0x%08llx, memory start 0x%08llx\n",
|
||
|
|
__func__, uma_memory_size, uma_memory_base);
|
||
|
|
|
||
|
|
/* TODO: TOP_MEM2 */
|
||
|
|
#else
|
||
|
|
uma_memory_size = 0x10000000; /* 256M recommended UMA */
|
||
|
|
uma_memory_base = 0x30000000; /* 1GB system memory supported */
|
||
|
|
#endif
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
int add_mainboard_resources(struct lb_memory *mem)
|
||
|
|
{
|
||
|
|
/* UMA is removed from system memory in the northbridge code, but
|
||
|
|
* in some circumstances we want the memory mentioned as reserved.
|
||
|
|
*/
|
||
|
|
#if (CONFIG_GFXUMA == 1)
|
||
|
|
printk(BIOS_INFO, "uma_memory_start=0x%llx, uma_memory_size=0x%llx \n",
|
||
|
|
uma_memory_base, uma_memory_size);
|
||
|
|
lb_add_memory_range(mem, LB_MEM_RESERVED, uma_memory_base,
|
||
|
|
uma_memory_size);
|
||
|
|
#endif
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
struct chip_operations mainboard_ops = {
|
||
|
|
CHIP_NAME(CONFIG_MAINBOARD_VENDOR " " CONFIG_MAINBOARD_PART_NUMBER " Mainboard")
|
||
|
|
.enable_dev = unionstation_enable,
|
||
|
|
};
|