diff options
author | efdesign98 <efdesign98@gmail.com> | 2011-06-16 16:39:30 -0700 |
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committer | Marc Jones <marcj303@gmail.com> | 2011-06-21 22:38:39 +0200 |
commit | ee39ea7e7edf9699f1bae1b2708ad6816f054817 (patch) | |
tree | e2de6cd600b1b8d4a657202962d8bc2e348ec67f /src/vendorcode/amd/cimx/sb900/AcpiLib.c | |
parent | b0969d65e675f7c7a3004fc3f6fc154f22e73d44 (diff) |
Add AMD SB900 CIMx code
This code is added to support the AMD SB900 southbridge.
Change-Id: I7dc5e13a53ffd479dcea4e05e8c8631096e2ba91
Signed-off-by: Frank Vibrans <frank.vibrans@amd.com>
Signed-off-by: efdesign98 <efdesign98@gmail.com>
Reviewed-on: http://review.coreboot.org/41
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marcj303@gmail.com>
Diffstat (limited to 'src/vendorcode/amd/cimx/sb900/AcpiLib.c')
-rwxr-xr-x | src/vendorcode/amd/cimx/sb900/AcpiLib.c | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/src/vendorcode/amd/cimx/sb900/AcpiLib.c b/src/vendorcode/amd/cimx/sb900/AcpiLib.c new file mode 100755 index 0000000000..90b331d535 --- /dev/null +++ b/src/vendorcode/amd/cimx/sb900/AcpiLib.c @@ -0,0 +1,179 @@ +/*;******************************************************************************** +; +; Copyright (c) 2011, Advanced Micro Devices, Inc. +; All rights reserved. +; +; Redistribution and use in source and binary forms, with or without +; modification, are permitted provided that the following conditions are met: +; * Redistributions of source code must retain the above copyright +; notice, this list of conditions and the following disclaimer. +; * Redistributions in binary form must reproduce the above copyright +; notice, this list of conditions and the following disclaimer in the +; documentation and/or other materials provided with the distribution. +; * Neither the name of Advanced Micro Devices, Inc. nor the names of +; its contributors may be used to endorse or promote products derived +; from this software without specific prior written permission. +; +; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +; ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +; WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +; DISCLAIMED. IN NO EVENT SHALL ADVANCED MICRO DEVICES, INC. BE LIABLE FOR ANY +; DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +; (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; +; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +; ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +; (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +; SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +; +;*********************************************************************************/ + +#include "SbPlatform.h" +#include "cbtypes.h" + +// +// +// Routine Description: +// +// Locate ACPI table +// +// Arguments: +// +// Signature - table signature +// +//Returns: +// +// pointer to ACPI table +// +// +VOID* +ACPI_LocateTable ( + IN unsigned int Signature + ) +{ + UINT32 i; + UINT32* RsdPtr; + UINT32* Rsdt; + UINTN tableOffset; + DESCRIPTION_HEADER* CurrentTable; + RsdPtr = (UINT32*) (UINTN)0xe0000; + Rsdt = NULL; + do { +// if ( *RsdPtr == ' DSR' && *(RsdPtr + 1) == ' RTP' ) { +// if ( (*RsdPtr == 0x52534420) && (*(RsdPtr + 1) == 0x50545220) ) { + if ( (*RsdPtr == 0x20445352) && (*(RsdPtr + 1) == 0x20525450) ) { + Rsdt = (UINT32*) (UINTN) ((RSDP*)RsdPtr)->RsdtAddress; + break; + } + RsdPtr += 4; + } while ( RsdPtr <= (UINT32*) (UINTN)0xffff0 ); + if ( Rsdt != NULL && ACPI_GetTableChecksum (Rsdt) == 0 ) { + for ( i = 0; i < (((DESCRIPTION_HEADER*)Rsdt)->Length - sizeof (DESCRIPTION_HEADER)) / 4; i++ ) { + tableOffset = *(UINTN*) ((UINT8*)Rsdt + sizeof (DESCRIPTION_HEADER) + i * 4); + CurrentTable = (DESCRIPTION_HEADER*)tableOffset; + if ( CurrentTable->Signature == Signature ) { + return CurrentTable; + } + } + } + return NULL; +} + +// +// +// Routine Description: +// +// Update table checksum +// +// Arguments: +// +// TablePtr - table pointer +// +// Returns: +// +// none +// +// +VOID +ACPI_SetTableChecksum ( + IN VOID* TablePtr + ) +{ + UINT8 Checksum; + Checksum = 0; + ((DESCRIPTION_HEADER*)TablePtr)->Checksum = 0; + Checksum = ACPI_GetTableChecksum (TablePtr); + ((DESCRIPTION_HEADER*)TablePtr)->Checksum = (UINT8) (0x100 - Checksum); +} + +// +// +// Routine Description: +// +// Get table checksum +// +// Arguments: +// +// TablePtr - table pointer +// +// Returns: +// +// none +// +// +UINT8 +ACPI_GetTableChecksum ( + IN VOID* TablePtr + ) +{ + return GetByteSum (TablePtr, ((DESCRIPTION_HEADER*)TablePtr)->Length); +} + + +UINT8 +GetByteSum ( + IN VOID* pData, + IN UINT32 Length + ) +{ + UINT32 i; + UINT8 Checksum; + Checksum = 0; + for ( i = 0; i < Length; i++ ) { + Checksum = Checksum + (*((UINT8*)pData + i)); + } + return Checksum; +} +VOID +GetSbAcpiMmioBase ( + OUT UINT32* AcpiMmioBase + ) +{ + UINT32 Value16; + + ReadPMIO (SB_PMIOA_REG24 + 2, AccWidthUint16, &Value16); + *AcpiMmioBase = Value16 << 16; +} + +VOID +GetSbAcpiPmBase ( + OUT UINT16* AcpiPmBase + ) +{ + ReadPMIO (SB_PMIOA_REG60, AccWidthUint16, AcpiPmBase); +} + +VOID +SetAcpiPma ( + IN UINT8 pmaControl + ) +{ + UINT16 pmaBase; + UINT16 dwValue; + ReadMEM (ACPI_MMIO_BASE + PMIO_BASE + SB_PMIOA_REG74, AccWidthUint16, &dwValue); + dwValue &= ~BIT6; + WriteMEM (ACPI_MMIO_BASE + PMIO_BASE + SB_PMIOA_REG74, AccWidthUint16, &dwValue); + ReadMEM (ACPI_MMIO_BASE + PMIO_BASE + SB_PMIOA_REG6E, AccWidthUint16, &pmaBase); + WriteIo8 (pmaBase, pmaControl); + RWMEM (ACPI_MMIO_BASE + SMI_BASE + SB_PMIOA_REG98 + 3, AccWidthUint8, ~BIT7, pmaControl << 7); +} + |