diff options
Diffstat (limited to 'src/vendorcode/amd/cimx/sb700/FLASH.c')
-rw-r--r-- | src/vendorcode/amd/cimx/sb700/FLASH.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/src/vendorcode/amd/cimx/sb700/FLASH.c b/src/vendorcode/amd/cimx/sb700/FLASH.c new file mode 100644 index 0000000000..0d842453cc --- /dev/null +++ b/src/vendorcode/amd/cimx/sb700/FLASH.c @@ -0,0 +1,58 @@ +/***************************************************************************** + * + * Copyright (C) 2012 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 "Platform.h" + +void fcInitBeforePciEnum(AMDSBCFG* pConfig){ + + TRACE((DMSG_SB_TRACE, "Entering PreInit Flash \n")); + RWPMIO(SB_PMIO_REGB2, AccWidthUint8, ~(UINT32)BIT1, 00); + + //Enable IDE and disable flash + //Enable IDE and disable flash + RWPMIO(SB_PMIO_REG59, AccWidthUint8, ~(UINT32)(BIT1+BIT0), 0); + RWPMIO(SB_PMIO_REGB2, AccWidthUint8, ~(UINT32)(BIT3), BIT0); //Configure GPIO3 as IDE_RST# and release RST + if (pConfig->IdeController){ + //Disabling IDE controller + RWPCI((IDE_BUS_DEV_FUN << 16) + SB_IDE_REG04, AccWidthUint8 | S3_SAVE, ~(UINT32)(BIT2+BIT1+BIT0), 0); + RWPCI((SMBUS_BUS_DEV_FUN << 16) + SB_SMBUS_REGAE, AccWidthUint8 | S3_SAVE, 0xFF, BIT3); + } + else{ + //Enable IDE controller + RWPCI((SMBUS_BUS_DEV_FUN << 16) + SB_SMBUS_REGAE, AccWidthUint8 | S3_SAVE, ~(UINT32)(BIT3), 0); + } + + //RPR 8.2 Enable IDE Data bus DD7 Pull down Resistor if IDE is enabled and FC is disabled + RWPMIO2(SB_PMIO2_REGE5, AccWidthUint8, 0xFF, BIT2); + //Slowdown the clock to FC if FC is not enabled, this is a power savings feature + RWPMIO(SB_PMIO_REGB2, AccWidthUint8, ~(UINT32)(BIT4), BIT4); + RWPMIO(SB_PMIO_REGBC, AccWidthUint8, 0xC0, 0); +} |