From: Geert Uytterhoeven <geert+renesas@glider.be> To: Magnus Damm <magnus.damm@gmail.com> Cc: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>, linux-renesas-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Geert Uytterhoeven <geert+renesas@glider.be> Subject: [PATCH 0/3] ARM: dts: renesas: r8a73a4: Clock fixes and improvements Date: Mon, 15 Jan 2024 12:03:02 +0100 [thread overview] Message-ID: <cover.1705315614.git.geert+renesas@glider.be> (raw) Hi all, This patch series contains fixes and improvements for clock descriptions of the Renesas R-Mobile APE6 SoC and the APE6-EVM development board. After comparing CPU core performance over a wide range of SoCs, I had been wondering for a long time why DMIPS/MHZ for the Cortex-A15 CPU cores on R-Mobile APE6 is slightly higher than on R-Car Gen2 SoCs. It turned out to be untrue, as the R-Mobile APE6 DTS contains a wrong crystal osciallator freqency, causing the CPU cores on R-Mobile APE6 to run 4% faster than assumed by Linux. The first patch fixes this. The two other patches contain small improvements and a small fix, none of which have any functional impact. I plan to queue this in renesas-devel for v6.9. Thanks for your comments! Geert Uytterhoeven (3): ARM: dts: renesas: r8a73a4: Fix external clocks and clock rate ARM: dts: renesas: r8a73a4: Add cp clock ARM: dts: renesas: r8a73a4: Fix thermal parent clock arch/arm/boot/dts/renesas/r8a73a4-ape6evm.dts | 12 ++++++++++ arch/arm/boot/dts/renesas/r8a73a4.dtsi | 23 +++++++++++++------ 2 files changed, 28 insertions(+), 7 deletions(-) -- 2.34.1 Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds
WARNING: multiple messages have this Message-ID (diff)
From: Geert Uytterhoeven <geert+renesas@glider.be> To: Magnus Damm <magnus.damm@gmail.com> Cc: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>, linux-renesas-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Geert Uytterhoeven <geert+renesas@glider.be> Subject: [PATCH 0/3] ARM: dts: renesas: r8a73a4: Clock fixes and improvements Date: Mon, 15 Jan 2024 12:03:02 +0100 [thread overview] Message-ID: <cover.1705315614.git.geert+renesas@glider.be> (raw) Hi all, This patch series contains fixes and improvements for clock descriptions of the Renesas R-Mobile APE6 SoC and the APE6-EVM development board. After comparing CPU core performance over a wide range of SoCs, I had been wondering for a long time why DMIPS/MHZ for the Cortex-A15 CPU cores on R-Mobile APE6 is slightly higher than on R-Car Gen2 SoCs. It turned out to be untrue, as the R-Mobile APE6 DTS contains a wrong crystal osciallator freqency, causing the CPU cores on R-Mobile APE6 to run 4% faster than assumed by Linux. The first patch fixes this. The two other patches contain small improvements and a small fix, none of which have any functional impact. I plan to queue this in renesas-devel for v6.9. Thanks for your comments! Geert Uytterhoeven (3): ARM: dts: renesas: r8a73a4: Fix external clocks and clock rate ARM: dts: renesas: r8a73a4: Add cp clock ARM: dts: renesas: r8a73a4: Fix thermal parent clock arch/arm/boot/dts/renesas/r8a73a4-ape6evm.dts | 12 ++++++++++ arch/arm/boot/dts/renesas/r8a73a4.dtsi | 23 +++++++++++++------ 2 files changed, 28 insertions(+), 7 deletions(-) -- 2.34.1 Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next reply other threads:[~2024-01-15 11:03 UTC|newest] Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top 2024-01-15 11:03 Geert Uytterhoeven [this message] 2024-01-15 11:03 ` [PATCH 0/3] ARM: dts: renesas: r8a73a4: Clock fixes and improvements Geert Uytterhoeven 2024-01-15 11:03 ` [PATCH 1/3] ARM: dts: renesas: r8a73a4: Fix external clocks and clock rate Geert Uytterhoeven 2024-01-15 11:03 ` Geert Uytterhoeven 2024-01-15 11:03 ` [PATCH 2/3] ARM: dts: renesas: r8a73a4: Add cp clock Geert Uytterhoeven 2024-01-15 11:03 ` Geert Uytterhoeven 2024-01-15 11:03 ` [PATCH 3/3] ARM: dts: renesas: r8a73a4: Fix thermal parent clock Geert Uytterhoeven 2024-01-15 11:03 ` Geert Uytterhoeven 2024-01-15 17:04 ` [PATCH 0/3] ARM: dts: renesas: r8a73a4: Clock fixes and improvements Niklas Söderlund 2024-01-15 17:04 ` Niklas Söderlund
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