From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gerhard Sittig Subject: [PATCH v2 08/24] dts: mpc512x: add clock related device tree specs Date: Thu, 18 Jul 2013 19:00:39 +0200 Message-ID: <1374166855-7280-9-git-send-email-gsi@denx.de> References: <1373914074-20889-1-git-send-email-gsi@denx.de> <1374166855-7280-1-git-send-email-gsi@denx.de> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1374166855-7280-1-git-send-email-gsi@denx.de> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linuxppc-dev-bounces+glppe-linuxppc-embedded-2=m.gmane.org@lists.ozlabs.org Sender: "Linuxppc-dev" To: linuxppc-dev@lists.ozlabs.org, Anatolij Gustschin , Mike Turquette , linux-arm-kernel@lists.infradead.org, devicetree-discuss@lists.ozlabs.org Cc: Detlev Zundel , Wolfram Sang , Greg Kroah-Hartman , Gerhard Sittig , Rob Herring , Mark Brown , Marc Kleine-Budde , David Woodhouse , Wolfgang Grandegger , Mauro Carvalho Chehab List-Id: devicetree@vger.kernel.org this addresses the clock driver aka provider's side of clocks - prepare for future '<&clks ID>' phandle references for device tree based clock lookup in client drivers - introduce a 'clocks' subtree with an 'osc' node for the crystal or oscillator SoC input (fixed frequency) - provide default values with 33MHz oscillator frequency in the common include (the 66MHz IPS bus already was there), add override values for the ifm AC14xx board which deviates from the reference design (25MHz xtal, 80MHz IPS bus) Signed-off-by: Gerhard Sittig --- arch/powerpc/boot/dts/ac14xx.dts | 7 +++++++ arch/powerpc/boot/dts/mpc5121.dtsi | 15 ++++++++++++++- 2 files changed, 21 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/boot/dts/ac14xx.dts b/arch/powerpc/boot/dts/ac14xx.dts index a543c40..a1b8837 100644 --- a/arch/powerpc/boot/dts/ac14xx.dts +++ b/arch/powerpc/boot/dts/ac14xx.dts @@ -139,7 +139,14 @@ }; }; + clocks { + osc { + clock-frequency = <25000000>; + }; + }; + soc@80000000 { + bus-frequency = <80000000>; /* 80 MHz ips bus */ clock@f00 { compatible = "fsl,mpc5121rev2-clock", "fsl,mpc5121-clock"; diff --git a/arch/powerpc/boot/dts/mpc5121.dtsi b/arch/powerpc/boot/dts/mpc5121.dtsi index bd14c00..8f4cba0 100644 --- a/arch/powerpc/boot/dts/mpc5121.dtsi +++ b/arch/powerpc/boot/dts/mpc5121.dtsi @@ -9,6 +9,8 @@ * option) any later version. */ +#include + /dts-v1/; / { @@ -73,6 +75,16 @@ ranges = <0x0 0x0 0xfc000000 0x04000000>; }; + clocks { + #address-cells = <1>; + #size-cells = <0>; + + osc { + compatible = "fsl,mpc512x-osc", "fixed-clock"; + clock-frequency = <33000000>; + }; + }; + soc@80000000 { compatible = "fsl,mpc5121-immr"; #address-cells = <1>; @@ -118,9 +130,10 @@ }; /* Clock control */ - clock@f00 { + clks: clock@f00 { compatible = "fsl,mpc5121-clock"; reg = <0xf00 0x100>; + #clock-cells = <1>; }; /* Power Management Controller */ -- 1.7.10.4 From mboxrd@z Thu Jan 1 00:00:00 1970 From: gsi@denx.de (Gerhard Sittig) Date: Thu, 18 Jul 2013 19:00:39 +0200 Subject: [PATCH v2 08/24] dts: mpc512x: add clock related device tree specs In-Reply-To: <1374166855-7280-1-git-send-email-gsi@denx.de> References: <1373914074-20889-1-git-send-email-gsi@denx.de> <1374166855-7280-1-git-send-email-gsi@denx.de> Message-ID: <1374166855-7280-9-git-send-email-gsi@denx.de> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org this addresses the clock driver aka provider's side of clocks - prepare for future '<&clks ID>' phandle references for device tree based clock lookup in client drivers - introduce a 'clocks' subtree with an 'osc' node for the crystal or oscillator SoC input (fixed frequency) - provide default values with 33MHz oscillator frequency in the common include (the 66MHz IPS bus already was there), add override values for the ifm AC14xx board which deviates from the reference design (25MHz xtal, 80MHz IPS bus) Signed-off-by: Gerhard Sittig --- arch/powerpc/boot/dts/ac14xx.dts | 7 +++++++ arch/powerpc/boot/dts/mpc5121.dtsi | 15 ++++++++++++++- 2 files changed, 21 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/boot/dts/ac14xx.dts b/arch/powerpc/boot/dts/ac14xx.dts index a543c40..a1b8837 100644 --- a/arch/powerpc/boot/dts/ac14xx.dts +++ b/arch/powerpc/boot/dts/ac14xx.dts @@ -139,7 +139,14 @@ }; }; + clocks { + osc { + clock-frequency = <25000000>; + }; + }; + soc at 80000000 { + bus-frequency = <80000000>; /* 80 MHz ips bus */ clock at f00 { compatible = "fsl,mpc5121rev2-clock", "fsl,mpc5121-clock"; diff --git a/arch/powerpc/boot/dts/mpc5121.dtsi b/arch/powerpc/boot/dts/mpc5121.dtsi index bd14c00..8f4cba0 100644 --- a/arch/powerpc/boot/dts/mpc5121.dtsi +++ b/arch/powerpc/boot/dts/mpc5121.dtsi @@ -9,6 +9,8 @@ * option) any later version. */ +#include + /dts-v1/; / { @@ -73,6 +75,16 @@ ranges = <0x0 0x0 0xfc000000 0x04000000>; }; + clocks { + #address-cells = <1>; + #size-cells = <0>; + + osc { + compatible = "fsl,mpc512x-osc", "fixed-clock"; + clock-frequency = <33000000>; + }; + }; + soc at 80000000 { compatible = "fsl,mpc5121-immr"; #address-cells = <1>; @@ -118,9 +130,10 @@ }; /* Clock control */ - clock at f00 { + clks: clock at f00 { compatible = "fsl,mpc5121-clock"; reg = <0xf00 0x100>; + #clock-cells = <1>; }; /* Power Management Controller */ -- 1.7.10.4