On 08/20/2017 01:46 PM, Ard Biesheuvel wrote:
On 19 August 2017 at 22:41, Alan Ott alan@softiron.com wrote:
Extra bits are needed to accomodate all 14 SATA ports
Signed-off-by: Alan Ott alan@softiron.com Contributed-under: TianoCore Contribution Agreement 1.0
Silicon/AMD/Styx/AmdStyx.dec | 2 +- Silicon/AMD/Styx/Drivers/StyxSataPlatformDxe/InitController.c | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/Silicon/AMD/Styx/AmdStyx.dec b/Silicon/AMD/Styx/AmdStyx.dec index ddd5bf4..c6eebe6 100644 --- a/Silicon/AMD/Styx/AmdStyx.dec +++ b/Silicon/AMD/Styx/AmdStyx.dec @@ -54,7 +54,7 @@ gAmdStyxTokenSpaceGuid.PcdSata0CtrlAxiSlvPort|0xE0300000|UINT32|0x00020000 gAmdStyxTokenSpaceGuid.PcdSata0PortCount|8|UINT8|0x00020001 gAmdStyxTokenSpaceGuid.PcdSataPi|0xFF|UINT32|0x00020002
- gAmdStyxTokenSpaceGuid.PcdSataPortMode|0|UINT16|0x00020003
- gAmdStyxTokenSpaceGuid.PcdSataPortMode|0|UINT32|0x00020003 gAmdStyxTokenSpaceGuid.PcdSataPortMpsp|TRUE|BOOLEAN|0x00020004 gAmdStyxTokenSpaceGuid.PcdSataSmpsSupport|FALSE|BOOLEAN|0x00020005 gAmdStyxTokenSpaceGuid.PcdSataSssSupport|TRUE|BOOLEAN|0x00020006
diff --git a/Silicon/AMD/Styx/Drivers/StyxSataPlatformDxe/InitController.c b/Silicon/AMD/Styx/Drivers/StyxSataPlatformDxe/InitController.c index 1958d91..78c6819 100644 --- a/Silicon/AMD/Styx/Drivers/StyxSataPlatformDxe/InitController.c +++ b/Silicon/AMD/Styx/Drivers/StyxSataPlatformDxe/InitController.c @@ -110,8 +110,8 @@ InitializeSataController ( SataChPerSerdes = FixedPcdGet8 (PcdSataNumChPerSerdes);
for (PortNum = 0; PortNum < SataPortCount; PortNum += SataChPerSerdes) {
- EvenPort = (UINT32)(FixedPcdGet16 (PcdSataPortMode) >> (PortNum * 2)) & 3;
- OddPort = (UINT32)(FixedPcdGet16 (PcdSataPortMode) >> ((PortNum+1) * 2)) & 3;
- EvenPort = (UINT32)(FixedPcdGet32 (PcdSataPortMode) >> (PortNum * 2)) & 3;
- OddPort = (UINT32)(FixedPcdGet32 (PcdSataPortMode) >> ((PortNum+1) * 2)) & 3; SataPhyInit ((StartPort + PortNum) / SataChPerSerdes, EvenPort, OddPort); }
This doesn't look right to me. PortNum will always be in the set { 0, 2, 4, 6 } due to SataPortCount being equal to either the port count of sata 0 or of sata 1. So the top 16 bits of the new PCD are never referenced, and the port mode for sata 0 ends up being applied to sata
Better use
for (PortNum = StartPort; PortNum < StartPort + SataPortCount; ...) ..etc..
I agree. This has apparently been broken all along. I'll fix and resubmit.
Also, this code relies rather heavily on SataChPerSerdes == 2, so we might want to add an ASSERT () for that.
I can do that too.
Alan.