> -----Original Message-----
> From: Ravulapalli, Naresh Kumar <naresh.kumar.ravulapa...@altera.com>
> Sent: Friday, August 8, 2025 5:40 PM
> To: u-boot@lists.denx.de
> Cc: Marek Vasut <ma...@denx.de>; Simon Goldschmidt
> <simon.k.r.goldschm...@gmail.com>; Chee, Tien Fong
> <tien.fong.c...@altera.com>; Tom Rini <tr...@konsulko.com>; Yuslaimi, Alif
> Zakuan <alif.zakuan.yusla...@altera.com>; Ravulapalli, Naresh Kumar
> <naresh.kumar.ravulapa...@altera.com>
> 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
> <nareshkumar.ravulapa...@altera.com>
> ---
> 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 <tien.fong.c...@altera.com>
Best regards,
Tien Fong
