diff mbox series

ARM: dts: aspeed: amd-ethanolx: Enable secondary LPC snooping address

Message ID 20210127182326.424-1-aladyshev22@gmail.com
State Accepted, archived
Headers show
Series ARM: dts: aspeed: amd-ethanolx: Enable secondary LPC snooping address | expand

Commit Message

Konstantin Aladyshev Jan. 27, 2021, 6:23 p.m. UTC
AMD EthanolX CRB uses 2-byte POST codes which are sent to ports 0x80/0x81.
Currently ASPEED controller snoops only 0x80 port and therefore captures
only the lower byte of each POST code.
Enable secondary LPC snooping address to capture the higher byte of POST
codes.

Signed-off-by: Konstantin Aladyshev <aladyshev22@gmail.com>
---
 arch/arm/boot/dts/aspeed-bmc-amd-ethanolx.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Andrew Jeffery Jan. 27, 2021, 11:16 p.m. UTC | #1
On Thu, 28 Jan 2021, at 04:53, Konstantin Aladyshev wrote:
> AMD EthanolX CRB uses 2-byte POST codes which are sent to ports 0x80/0x81.
> Currently ASPEED controller snoops only 0x80 port and therefore captures
> only the lower byte of each POST code.
> Enable secondary LPC snooping address to capture the higher byte of POST
> codes.
> 
> Signed-off-by: Konstantin Aladyshev <aladyshev22@gmail.com>

Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
diff mbox series

Patch

diff --git a/arch/arm/boot/dts/aspeed-bmc-amd-ethanolx.dts b/arch/arm/boot/dts/aspeed-bmc-amd-ethanolx.dts
index 96ff0aea64e5..ac2d04cfaf2f 100644
--- a/arch/arm/boot/dts/aspeed-bmc-amd-ethanolx.dts
+++ b/arch/arm/boot/dts/aspeed-bmc-amd-ethanolx.dts
@@ -218,7 +218,7 @@ 
 
 &lpc_snoop {
 	status = "okay";
-	snoop-ports = <0x80>;
+	snoop-ports = <0x80>, <0x81>;
 };
 
 &lpc_ctrl {