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authorKerry She <shekairui@gmail.com>2011-08-18 18:44:00 +0800
committerStefan Reinauer <stefan.reinauer@coreboot.org>2011-09-07 01:10:05 +0200
commit6209c8299a4bdcdb51cd6bf0c43c571ed575ad96 (patch)
tree843a812c073191dd08315f3a4791f0b66480208d /src/vendorcode/amd/cimx/sb800/SBPOR.c
parentfeed329a0c006968242aa3065506b5f37f4308d4 (diff)
AMD SB800 southbridge update
This patch enables access to the registers of the hardware monitor logical device in the superio via isa ports 0x295/0x296. Previously this was not enabled in the SB8xx LPC device. This is required for initialisation in init_hwm() in src/superio/winbond/w83627hf/superio.c and also by OS-level sensor monitoring such as lm-sensors to access temperature, fan monitoring and control and voltage registers. asrock/e350m1 and advansus/a785e-i mainboard changes are included herein. Change-Id: I2176885549277b335c0c41b48457d09b9b76b703 Signed-off-by: Per Hansen <perh52@runbox.com> Signed-off-by: Kerry She <shekairui@gmail.com> Reviewed-on: http://review.coreboot.org/159 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src/vendorcode/amd/cimx/sb800/SBPOR.c')
-rw-r--r--src/vendorcode/amd/cimx/sb800/SBPOR.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/src/vendorcode/amd/cimx/sb800/SBPOR.c b/src/vendorcode/amd/cimx/sb800/SBPOR.c
index 33d09d622e..daf13c719c 100644
--- a/src/vendorcode/amd/cimx/sb800/SBPOR.c
+++ b/src/vendorcode/amd/cimx/sb800/SBPOR.c
@@ -144,6 +144,7 @@ sbPowerOnInit (
UINT8 cimSataMode;
UINT8 cimSpiFastReadEnable;
UINT8 cimSpiFastReadSpeed;
+ UINT8 cimSioHwmPortEnable;
UINT8 SataPortNum;
cimNbSbGen2 = pConfig->NbSbGen2;
@@ -155,12 +156,14 @@ sbPowerOnInit (
cimSpiFastReadEnable = cimSpiFastReadEnableDefault;
}
cimSpiFastReadSpeed = (UINT8) pConfig->BuildParameters.SpiFastReadSpeed;
+ cimSioHwmPortEnable = pConfig->SioHwmPortEnable;
#if SB_CIMx_PARAMETER == 0
cimNbSbGen2 = cimNbSbGen2Default;
cimSataMode = (UINT8) ((cimSataMode & 0xFB) | cimSataSetMaxGen2Default);
cimSataMode = (UINT8) ((cimSataMode & 0x0F) | (cimSATARefClkSelDefault + cimSATARefDivSelDefault));
cimSpiFastReadEnable = cimSpiFastReadEnableDefault;
cimSpiFastReadSpeed = cimSpiFastReadSpeedDefault;
+ cimSioHwmPortEnable = cimSioHwmPortEnableDefault;
#endif
// SB800 Only Enabled (Mmio_mem_enablr) // Default value is correct
@@ -200,6 +203,12 @@ sbPowerOnInit (
// Set Build option into SB
WritePCI ((LPC_BUS_DEV_FUN << 16) + SB_LPC_REG64, AccWidthUint16 | S3_SAVE, &(pConfig->BuildParameters.SioPmeBaseAddress));
+ if (cimSioHwmPortEnable) {
+ // Use Wide IO Port 1 to provide access to the superio HWM registers.
+ WritePCI ((LPC_BUS_DEV_FUN << 16) + SB_LPC_REG66 , AccWidthUint16 | S3_SAVE, &(pConfig->BuildParameters.SioHwmBaseAddress));
+ RWPCI ((LPC_BUS_DEV_FUN << 16) + SB_LPC_REG48 + 3, AccWidthUint8 | S3_SAVE, 0xFF, BIT0); // Wide IO Port 1: enable
+ RWPCI ((LPC_BUS_DEV_FUN << 16) + SB_LPC_REG74 , AccWidthUint8 | S3_SAVE, 0xFF, BIT2); // set width 0:512, 1:16 bytes
+ }
RWPCI ((LPC_BUS_DEV_FUN << 16) + SB_LPC_REGA0, AccWidthUint32 | S3_SAVE, 0x001F, (pConfig->BuildParameters.SpiRomBaseAddress));
RWPCI ((LPC_BUS_DEV_FUN << 16) + SB_LPC_REG9C, AccWidthUint32 | S3_SAVE, 0, (pConfig->BuildParameters.GecShadowRomBase + 1));
// Enabled SMBUS0/SMBUS1 (ASF) Base Address
@@ -354,4 +363,4 @@ sbPowerOnInit (
// Set PMx88[5]to enable LdtStp# output to do the C3 or FidVid transation
RWMEM (ACPI_MMIO_BASE + PMIO_BASE + SB_PMIOA_REG88, AccWidthUint8, 0xFF, BIT5);
-} \ No newline at end of file
+}