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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2009 One Laptop per Child, Association, 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.
*/
void WaitMicroSec(UINTN MicroSeconds)
{
u32 i;
for (i = 0; i < 1024 * MicroSeconds; i++) {
__asm__ volatile ("nop\n\t");
}
return;
}
/*===================================================================
Function : via_write_phys()
Precondition :
Input : addr
value
Output : void
Purpose :
Reference : None
===================================================================*/
void via_write_phys(volatile u32 addr, volatile u32 value)
{
volatile u32 *ptr;
ptr = (volatile u32 *)addr;
*ptr = (volatile u32)value;
}
/*===================================================================
Function : via_read_phys()
Precondition :
Input : addr
Output : u32
Purpose :
Reference : None
===================================================================*/
u32 via_read_phys(volatile u32 addr)
{
volatile u32 y;
y = *(volatile u32 *)addr;
return y;
}
/*===================================================================
Function : DimmRead()
Precondition :
Input : x
Output : u32
Purpose :
Reference : None
===================================================================*/
u32 DimmRead(volatile u32 x)
{ // volatile u32 z;
volatile u32 y;
y = *(volatile u32 *)x;
return y;
}
/*===================================================================
Function : DramBaseTest()
Precondition : this function used to verify memory
Input :
BaseAdd,
length,
mode
Output : u32
Purpose :write into and read out to verify if dram is correct
Reference : None
===================================================================*/
BOOLEAN DramBaseTest(u32 BaseAdd, u32 Length,
DRAM_TEST_MODE Mode, BOOLEAN PrintFlag)
{
u32 TestSpan;
u32 Data, Address, Address2;
u8 i, TestCount;
//decide the test mode is continous or step
if (Mode == EXTENSIVE) {
//the test mode is continuos and must test each unit
TestSpan = 4;
TestCount = 1;
} else if (Mode == SPARE) {
// the test mode is step and test some unit
TestSpan = STEPSPAN;
TestCount = TESTCOUNT;
} else {
PRINT_DEBUG_MEM("the test mode is error\r");
return FALSE;
}
//write each test unit the value with TEST_PATTERN
for (Address = BaseAdd; Address < BaseAdd + Length; Address += TestSpan) {
for (i = 0; i < TestCount; i++)
via_write_phys(Address + i * 4, TEST_PATTERN);
if (PrintFlag) {
if ((u32) Address % 0x10000000 == 0) {
PRINT_DEBUG_MEM("Write in Addr =");
PRINT_DEBUG_MEM_HEX32(Address);
PRINT_DEBUG_MEM("\r");
}
}
}
//compare each test unit with the value of TEST_PATTERN
//and write it with compliment of TEST_PATTERN
for (Address = BaseAdd; Address < BaseAdd + Length; Address += TestSpan) {
for (i = 0; i < TestCount; i++) {
Data = via_read_phys(Address + i * 4);
via_write_phys(Address + i * 4, (u32) (~TEST_PATTERN));
if (Data != TEST_PATTERN) {
PRINT_DEBUG_MEM("TEST_PATTERN ERROR !!!!! ");
Address2 = Address + i * 4;
PRINT_DEBUG_MEM_HEX32(Address2);
PRINT_DEBUG_MEM(" : ");
PRINT_DEBUG_MEM_HEX32(Data);
PRINT_DEBUG_MEM(" \r");
return FALSE;
}
}
if (PrintFlag) {
if ((u32) Address % 0x10000000 == 0) {
PRINT_DEBUG_MEM("Write in Addr =");
PRINT_DEBUG_MEM_HEX32(Address);
PRINT_DEBUG_MEM("\r");
}
}
}
//compare each test unit with the value of ~TEST_PATTERN
for (Address = BaseAdd; Address < BaseAdd + Length; Address += TestSpan) {
for (i = (u8) (TestCount); i > 0; i--) {
Data = via_read_phys(Address + (i - 1) * 4);
if (Data != ~TEST_PATTERN) {
PRINT_DEBUG_MEM("~TEST_PATTERN ERROR !!!!! ");
Address2 = Address + (i - 1) * 4;
PRINT_DEBUG_MEM_HEX32(Address2);
PRINT_DEBUG_MEM(" : ");
PRINT_DEBUG_MEM_HEX32(Data);
PRINT_DEBUG_MEM(" \r");
return FALSE;
}
}
}
return TRUE;
}
/*===================================================================
Function : DumpRegisters()
Precondition :
Input :
pPCIPPI,
DevNum,
FuncNum
Output : Void
Purpose :
Reference : None
===================================================================*/
void DumpRegisters(INTN DevNum, INTN FuncNum)
{
INTN i, j;
u8 ByteVal;
ByteVal = 0;
PRINT_DEBUG_MEM("\rDev %02x Fun %02x\r");
PRINT_DEBUG_MEM
("\r 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f\r");
PRINT_DEBUG_MEM
("---------------------------------------------------\r");
for (i = 0; i < 0x10; i++) {
PRINT_DEBUG_MEM_HEX32((u32)i);
for (j = 0; j < 0x10; j++) {
ByteVal =
pci_read_config8(PCI_DEV(0, DevNum, FuncNum),
i * 0x10 + j);
PRINT_DEBUG_MEM_HEX8(ByteVal);
PRINT_DEBUG_MEM(" ");
}
PRINT_DEBUG_MEM("\r");
}
return;
}
/*===================================================================
Function : dumpnorth()
Precondition :
Input :
pPCIPPI,
Func
Output : Void
Purpose :
Reference : None
===================================================================*/
void dumpnorth(u8 Func)
{
u16 r, c;
u8 ByteVal;
PRINT_DEBUG_MEM("Dump North!!!\r");
for (r = 0; r < 32; r++) {
for (c = (u16) (r << 3); c < (r << 3) + 8; c++) {
ByteVal = 0;
ByteVal = pci_read_config8(PCI_DEV(0, 0, Func), c);
PRINT_DEBUG_MEM_HEX16(c);
PRINT_DEBUG_MEM("= ");
PRINT_DEBUG_MEM_HEX8(ByteVal);
}
PRINT_DEBUG_MEM("\r");
}
}
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