From mboxrd@z Thu Jan 1 00:00:00 1970 From: andy.tang@nxp.com (Yuantian Tang) Date: Mon, 5 Jun 2017 11:28:22 +0800 Subject: [PATCH v2] arm64: dts: ls1012a: Add coreclk Message-ID: <1496633302-2795-1-git-send-email-andy.tang@nxp.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org From: Scott Wood ls1012a has separate input root clocks for core PLLs versus the platform PLL, with the latter described as sysclk in the hw docs. Accordingly, update the clock-frequency in sysclk to 125M as platform input clock. Signed-off-by: Scott Wood Signed-off-by: Tang Yuantian --- v2: - add explanation about frequency change Note 1: Current versions of U-Boot are blindly updating the frequency of all fixed-clock nodes. That needs to be fixed for the split input frequency to work properly, but until U-Boot is fixed this change doesn't make anything worse than it already was. Note 2: coreclk binding has been merged in mainline clock git tree: git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux.git arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi index 9a2ccd8..b1554cb 100644 --- a/arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi +++ b/arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi @@ -76,10 +76,17 @@ sysclk: sysclk { compatible = "fixed-clock"; #clock-cells = <0>; - clock-frequency = <100000000>; + clock-frequency = <125000000>; clock-output-names = "sysclk"; }; + coreclk: coreclk { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <100000000>; + clock-output-names = "coreclk"; + }; + timer { compatible = "arm,armv8-timer"; interrupts = <1 13 IRQ_TYPE_LEVEL_LOW>,/* Physical Secure PPI */ @@ -248,7 +255,8 @@ compatible = "fsl,ls1012a-clockgen"; reg = <0x0 0x1ee1000 0x0 0x1000>; #clock-cells = <2>; - clocks = <&sysclk>; + clocks = <&sysclk &coreclk>; + clock-names = "sysclk", "coreclk"; }; tmu: tmu at 1f00000 { -- 2.1.0.27.g96db324