> -----Original Message----- > From: Ravulapalli, Naresh Kumar <[email protected]> > Sent: Friday, August 8, 2025 5:40 PM > To: [email protected] > Cc: Marek Vasut <[email protected]>; Simon Goldschmidt > <[email protected]>; Chee, Tien Fong > <[email protected]>; Tom Rini <[email protected]>; Yuslaimi, Alif > Zakuan <[email protected]>; Ravulapalli, Naresh Kumar > <[email protected]> > Subject: [PATCH] arch: arm: dts: agilex5: Disable cache allocation for reads > > In order to circumvent CCU NOC issue in Agilex5, it is recommended to > disable cache allocation for reads. This prevents hang issues caused by CCP > (Common Cache Pipe) Fill Done FIFO overflow. > > Signed-off-by: Naresh Kumar Ravulapalli > <[email protected]> > --- > arch/arm/dts/socfpga_agilex5-u-boot.dtsi | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/arch/arm/dts/socfpga_agilex5-u-boot.dtsi > b/arch/arm/dts/socfpga_agilex5-u-boot.dtsi > index 402f0bec173..d51a9e2ff7f 100644 > --- a/arch/arm/dts/socfpga_agilex5-u-boot.dtsi > +++ b/arch/arm/dts/socfpga_agilex5-u-boot.dtsi > @@ -209,7 +209,7 @@ > /* DMIUSMCTCR */ > <0x00000300 0x00000001 > 0x00000003>, > <0x00000300 0x00000003 > 0x00000003>, > - <0x00000308 0x00000004 > 0x0000001F>; > + <0x00000308 0x0000000C > 0x0000001F>; > bootph-all; > }; > > @@ -220,7 +220,7 @@ > /* DMIUSMCTCR */ > <0x00000300 0x00000001 > 0x00000003>, > <0x00000300 0x00000003 > 0x00000003>, > - <0x00000308 0x00000004 > 0x0000001F>; > + <0x00000308 0x0000000C > 0x0000001F>; > bootph-all; > }; > }; > -- > 2.35.3 Reviewed-by: Tien Fong Chee <[email protected]> Best regards, Tien Fong
