* [PATCH v2] powerpc/dts: Add and fix 1588 timer node for eTSEC
@ 2015-05-07 3:29 Yangbo Lu
2015-07-16 2:37 ` Lu Y.B.
0 siblings, 1 reply; 6+ messages in thread
From: Yangbo Lu @ 2015-05-07 3:29 UTC (permalink / raw)
To: linuxppc-dev, linux-kernel, scottwood; +Cc: Yangbo Lu
Add 1588 timer node in files:
arch/powerpc/boot/dts/bsc9131rdb.dtsi
arch/powerpc/boot/dts/bsc9132qds.dtsi
arch/powerpc/boot/dts/p1010rdb.dtsi
arch/powerpc/boot/dts/p1020rdb-pd.dts
arch/powerpc/boot/dts/p1021rdb-pc.dtsi
arch/powerpc/boot/dts/p1022ds.dtsi
arch/powerpc/boot/dts/p1025twr.dtsi
Fix 1588 timer node in file:
arch/powerpc/boot/dts/p2020rdb-pc.dtsi
Signed-off-by: Yangbo Lu <yangbo.lu@freescale.com>
---
Changes for v2:
- Changed hex value to decimal value in dts
- Modified commit message
- Modified 1588 node in p2020rdb-pc.dtsi
---
arch/powerpc/boot/dts/bsc9131rdb.dtsi | 12 ++++++++++++
arch/powerpc/boot/dts/bsc9132qds.dtsi | 12 ++++++++++++
arch/powerpc/boot/dts/p1010rdb.dtsi | 12 ++++++++++++
arch/powerpc/boot/dts/p1020rdb-pd.dts | 12 ++++++++++++
arch/powerpc/boot/dts/p1021rdb-pc.dtsi | 12 ++++++++++++
arch/powerpc/boot/dts/p1022ds.dtsi | 12 ++++++++++++
arch/powerpc/boot/dts/p1025twr.dtsi | 12 ++++++++++++
arch/powerpc/boot/dts/p2020rdb-pc.dtsi | 12 ++++++------
8 files changed, 90 insertions(+), 6 deletions(-)
diff --git a/arch/powerpc/boot/dts/bsc9131rdb.dtsi b/arch/powerpc/boot/dts/bsc9131rdb.dtsi
index 45efcba..a6d533e 100644
--- a/arch/powerpc/boot/dts/bsc9131rdb.dtsi
+++ b/arch/powerpc/boot/dts/bsc9131rdb.dtsi
@@ -80,6 +80,18 @@
status = "disabled";
};
+ ptp_clock@b0e00 {
+ compatible = "fsl,etsec-ptp";
+ reg = <0xb0e00 0xb0>;
+ interrupts = <68 2 0 0 69 2 0 0>;
+ fsl,tclk-period = <5>;
+ fsl,tmr-prsc = <2>;
+ fsl,tmr-add = <3435973837>;
+ fsl,tmr-fiper1 = <999999995>;
+ fsl,tmr-fiper2 = <99990>;
+ fsl,max-adj = <249999999>;
+ };
+
enet0: ethernet@b0000 {
phy-handle = <&phy0>;
phy-connection-type = "rgmii-id";
diff --git a/arch/powerpc/boot/dts/bsc9132qds.dtsi b/arch/powerpc/boot/dts/bsc9132qds.dtsi
index af8e888..ef75804 100644
--- a/arch/powerpc/boot/dts/bsc9132qds.dtsi
+++ b/arch/powerpc/boot/dts/bsc9132qds.dtsi
@@ -87,6 +87,18 @@
};
};
+ ptp_clock@b0e00 {
+ compatible = "fsl,etsec-ptp";
+ reg = <0xb0e00 0xb0>;
+ interrupts = <68 2 0 0 69 2 0 0>;
+ fsl,tclk-period = <5>;
+ fsl,tmr-prsc = <2>;
+ fsl,tmr-add = <3435973837>;
+ fsl,tmr-fiper1 = <999999995>;
+ fsl,tmr-fiper2 = <99990>;
+ fsl,max-adj = <249999999>;
+ };
+
enet0: ethernet@b0000 {
phy-handle = <&phy0>;
tbi-handle = <&tbi0>;
diff --git a/arch/powerpc/boot/dts/p1010rdb.dtsi b/arch/powerpc/boot/dts/p1010rdb.dtsi
index ea534ef..1613678 100644
--- a/arch/powerpc/boot/dts/p1010rdb.dtsi
+++ b/arch/powerpc/boot/dts/p1010rdb.dtsi
@@ -186,6 +186,18 @@
};
};
+ ptp_clock@b0e00 {
+ compatible = "fsl,etsec-ptp";
+ reg = <0xb0e00 0xb0>;
+ interrupts = <68 2 0 0 69 2 0 0>;
+ fsl,tclk-period = <10>;
+ fsl,tmr-prsc = <2>;
+ fsl,tmr-add = <2147483670>;
+ fsl,tmr-fiper1 = <999999990>;
+ fsl,tmr-fiper2 = <99990>;
+ fsl,max-adj = <199999999>;
+ };
+
enet0: ethernet@b0000 {
phy-handle = <&phy0>;
phy-connection-type = "rgmii-id";
diff --git a/arch/powerpc/boot/dts/p1020rdb-pd.dts b/arch/powerpc/boot/dts/p1020rdb-pd.dts
index 987017e..52e8fe8 100644
--- a/arch/powerpc/boot/dts/p1020rdb-pd.dts
+++ b/arch/powerpc/boot/dts/p1020rdb-pd.dts
@@ -225,6 +225,18 @@
};
};
+ ptp_clock@b0e00 {
+ compatible = "fsl,etsec-ptp";
+ reg = <0xb0e00 0xb0>;
+ interrupts = <68 2 0 0 69 2 0 0>;
+ fsl,tclk-period = <10>;
+ fsl,tmr-prsc = <2>;
+ fsl,tmr-add = <2147483670>;
+ fsl,tmr-fiper1 = <999999990>;
+ fsl,tmr-fiper2 = <99990>;
+ fsl,max-adj = <199999999>;
+ };
+
enet0: ethernet@b0000 {
fixed-link = <1 1 1000 0 0>;
phy-connection-type = "rgmii-id";
diff --git a/arch/powerpc/boot/dts/p1021rdb-pc.dtsi b/arch/powerpc/boot/dts/p1021rdb-pc.dtsi
index d6274c5..a29c84a 100644
--- a/arch/powerpc/boot/dts/p1021rdb-pc.dtsi
+++ b/arch/powerpc/boot/dts/p1021rdb-pc.dtsi
@@ -224,6 +224,18 @@
};
};
+ ptp_clock@b0e00 {
+ compatible = "fsl,etsec-ptp";
+ reg = <0xb0e00 0xb0>;
+ interrupts = <68 2 0 0 69 2 0 0>;
+ fsl,tclk-period = <10>;
+ fsl,tmr-prsc = <2>;
+ fsl,tmr-add = <2147483670>;
+ fsl,tmr-fiper1 = <999999990>;
+ fsl,tmr-fiper2 = <99990>;
+ fsl,max-adj = <199999999>;
+ };
+
enet0: ethernet@b0000 {
fixed-link = <1 1 1000 0 0>;
phy-connection-type = "rgmii-id";
diff --git a/arch/powerpc/boot/dts/p1022ds.dtsi b/arch/powerpc/boot/dts/p1022ds.dtsi
index 957e0dc..50f915f 100644
--- a/arch/powerpc/boot/dts/p1022ds.dtsi
+++ b/arch/powerpc/boot/dts/p1022ds.dtsi
@@ -215,6 +215,18 @@
};
};
+ ptp_clock@b0e00 {
+ compatible = "fsl,etsec-ptp";
+ reg = <0xb0e00 0xb0>;
+ interrupts = <68 2 0 0 69 2 0 0>;
+ fsl,tclk-period = <5>;
+ fsl,tmr-prsc = <2>;
+ fsl,tmr-add = <3223239997>;
+ fsl,tmr-fiper1 = <999999995>;
+ fsl,tmr-fiper2 = <99990>;
+ fsl,max-adj = <266499999>;
+ };
+
ethernet@b0000 {
phy-handle = <&phy0>;
phy-connection-type = "rgmii-id";
diff --git a/arch/powerpc/boot/dts/p1025twr.dtsi b/arch/powerpc/boot/dts/p1025twr.dtsi
index 8453501..52a6c7e 100644
--- a/arch/powerpc/boot/dts/p1025twr.dtsi
+++ b/arch/powerpc/boot/dts/p1025twr.dtsi
@@ -138,6 +138,18 @@
};
};
+ ptp_clock@b0e00 {
+ compatible = "fsl,etsec-ptp";
+ reg = <0xb0e00 0xb0>;
+ interrupts = <68 2 0 0 69 2 0 0>;
+ fsl,tclk-period = <10>;
+ fsl,tmr-prsc = <2>;
+ fsl,tmr-add = <3221225505>;
+ fsl,tmr-fiper1 = <999999990>;
+ fsl,tmr-fiper2 = <99990>;
+ fsl,max-adj = <133333332>;
+ };
+
enet0: ethernet@b0000 {
phy-handle = <&phy0>;
phy-connection-type = "rgmii-id";
diff --git a/arch/powerpc/boot/dts/p2020rdb-pc.dtsi b/arch/powerpc/boot/dts/p2020rdb-pc.dtsi
index c21d1c7..363172d 100644
--- a/arch/powerpc/boot/dts/p2020rdb-pc.dtsi
+++ b/arch/powerpc/boot/dts/p2020rdb-pc.dtsi
@@ -215,12 +215,12 @@
};
ptp_clock@24e00 {
- fsl,tclk-period = <5>;
- fsl,tmr-prsc = <200>;
- fsl,tmr-add = <0xCCCCCCCD>;
- fsl,tmr-fiper1 = <0x3B9AC9FB>;
- fsl,tmr-fiper2 = <0x0001869B>;
- fsl,max-adj = <249999999>;
+ fsl,tclk-period = <5>;
+ fsl,tmr-prsc = <2>;
+ fsl,tmr-add = <2863311531>;
+ fsl,tmr-fiper1 = <999999995>;
+ fsl,tmr-fiper2 = <99990>;
+ fsl,max-adj = <299999999>;
};
enet0: ethernet@24000 {
--
2.1.0.27.g96db324
^ permalink raw reply related [flat|nested] 6+ messages in thread
* RE: [PATCH v2] powerpc/dts: Add and fix 1588 timer node for eTSEC
2015-05-07 3:29 [PATCH v2] powerpc/dts: Add and fix 1588 timer node for eTSEC Yangbo Lu
@ 2015-07-16 2:37 ` Lu Y.B.
2015-07-16 20:38 ` Scott Wood
0 siblings, 1 reply; 6+ messages in thread
From: Lu Y.B. @ 2015-07-16 2:37 UTC (permalink / raw)
To: linuxppc-dev, linux-kernel, Scott Wood
Any comments?
Thanks.
> -----Original Message-----
> From: Yangbo Lu [mailto:yangbo.lu@freescale.com]
> Sent: Thursday, May 07, 2015 11:29 AM
> To: linuxppc-dev@lists.ozlabs.org; linux-kernel@vger.kernel.org; Wood
> Scott-B07421
> Cc: Lu Yangbo-B47093
> Subject: [PATCH v2] powerpc/dts: Add and fix 1588 timer node for eTSEC
>=20
> Add 1588 timer node in files:
> arch/powerpc/boot/dts/bsc9131rdb.dtsi
> arch/powerpc/boot/dts/bsc9132qds.dtsi
> arch/powerpc/boot/dts/p1010rdb.dtsi
> arch/powerpc/boot/dts/p1020rdb-pd.dts
> arch/powerpc/boot/dts/p1021rdb-pc.dtsi
> arch/powerpc/boot/dts/p1022ds.dtsi
> arch/powerpc/boot/dts/p1025twr.dtsi
> Fix 1588 timer node in file:
> arch/powerpc/boot/dts/p2020rdb-pc.dtsi
>=20
> Signed-off-by: Yangbo Lu <yangbo.lu@freescale.com>
> ---
> Changes for v2:
> - Changed hex value to decimal value in dts
> - Modified commit message
> - Modified 1588 node in p2020rdb-pc.dtsi
> ---
> arch/powerpc/boot/dts/bsc9131rdb.dtsi | 12 ++++++++++++
> arch/powerpc/boot/dts/bsc9132qds.dtsi | 12 ++++++++++++
> arch/powerpc/boot/dts/p1010rdb.dtsi | 12 ++++++++++++
> arch/powerpc/boot/dts/p1020rdb-pd.dts | 12 ++++++++++++
> arch/powerpc/boot/dts/p1021rdb-pc.dtsi | 12 ++++++++++++
> arch/powerpc/boot/dts/p1022ds.dtsi | 12 ++++++++++++
> arch/powerpc/boot/dts/p1025twr.dtsi | 12 ++++++++++++
> arch/powerpc/boot/dts/p2020rdb-pc.dtsi | 12 ++++++------
> 8 files changed, 90 insertions(+), 6 deletions(-)
>=20
> diff --git a/arch/powerpc/boot/dts/bsc9131rdb.dtsi
> b/arch/powerpc/boot/dts/bsc9131rdb.dtsi
> index 45efcba..a6d533e 100644
> --- a/arch/powerpc/boot/dts/bsc9131rdb.dtsi
> +++ b/arch/powerpc/boot/dts/bsc9131rdb.dtsi
> @@ -80,6 +80,18 @@
> status =3D "disabled";
> };
>=20
> + ptp_clock@b0e00 {
> + compatible =3D "fsl,etsec-ptp";
> + reg =3D <0xb0e00 0xb0>;
> + interrupts =3D <68 2 0 0 69 2 0 0>;
> + fsl,tclk-period =3D <5>;
> + fsl,tmr-prsc =3D <2>;
> + fsl,tmr-add =3D <3435973837>;
> + fsl,tmr-fiper1 =3D <999999995>;
> + fsl,tmr-fiper2 =3D <99990>;
> + fsl,max-adj =3D <249999999>;
> + };
> +
> enet0: ethernet@b0000 {
> phy-handle =3D <&phy0>;
> phy-connection-type =3D "rgmii-id";
> diff --git a/arch/powerpc/boot/dts/bsc9132qds.dtsi
> b/arch/powerpc/boot/dts/bsc9132qds.dtsi
> index af8e888..ef75804 100644
> --- a/arch/powerpc/boot/dts/bsc9132qds.dtsi
> +++ b/arch/powerpc/boot/dts/bsc9132qds.dtsi
> @@ -87,6 +87,18 @@
> };
> };
>=20
> + ptp_clock@b0e00 {
> + compatible =3D "fsl,etsec-ptp";
> + reg =3D <0xb0e00 0xb0>;
> + interrupts =3D <68 2 0 0 69 2 0 0>;
> + fsl,tclk-period =3D <5>;
> + fsl,tmr-prsc =3D <2>;
> + fsl,tmr-add =3D <3435973837>;
> + fsl,tmr-fiper1 =3D <999999995>;
> + fsl,tmr-fiper2 =3D <99990>;
> + fsl,max-adj =3D <249999999>;
> + };
> +
> enet0: ethernet@b0000 {
> phy-handle =3D <&phy0>;
> tbi-handle =3D <&tbi0>;
> diff --git a/arch/powerpc/boot/dts/p1010rdb.dtsi
> b/arch/powerpc/boot/dts/p1010rdb.dtsi
> index ea534ef..1613678 100644
> --- a/arch/powerpc/boot/dts/p1010rdb.dtsi
> +++ b/arch/powerpc/boot/dts/p1010rdb.dtsi
> @@ -186,6 +186,18 @@
> };
> };
>=20
> + ptp_clock@b0e00 {
> + compatible =3D "fsl,etsec-ptp";
> + reg =3D <0xb0e00 0xb0>;
> + interrupts =3D <68 2 0 0 69 2 0 0>;
> + fsl,tclk-period =3D <10>;
> + fsl,tmr-prsc =3D <2>;
> + fsl,tmr-add =3D <2147483670>;
> + fsl,tmr-fiper1 =3D <999999990>;
> + fsl,tmr-fiper2 =3D <99990>;
> + fsl,max-adj =3D <199999999>;
> + };
> +
> enet0: ethernet@b0000 {
> phy-handle =3D <&phy0>;
> phy-connection-type =3D "rgmii-id";
> diff --git a/arch/powerpc/boot/dts/p1020rdb-pd.dts
> b/arch/powerpc/boot/dts/p1020rdb-pd.dts
> index 987017e..52e8fe8 100644
> --- a/arch/powerpc/boot/dts/p1020rdb-pd.dts
> +++ b/arch/powerpc/boot/dts/p1020rdb-pd.dts
> @@ -225,6 +225,18 @@
> };
> };
>=20
> + ptp_clock@b0e00 {
> + compatible =3D "fsl,etsec-ptp";
> + reg =3D <0xb0e00 0xb0>;
> + interrupts =3D <68 2 0 0 69 2 0 0>;
> + fsl,tclk-period =3D <10>;
> + fsl,tmr-prsc =3D <2>;
> + fsl,tmr-add =3D <2147483670>;
> + fsl,tmr-fiper1 =3D <999999990>;
> + fsl,tmr-fiper2 =3D <99990>;
> + fsl,max-adj =3D <199999999>;
> + };
> +
> enet0: ethernet@b0000 {
> fixed-link =3D <1 1 1000 0 0>;
> phy-connection-type =3D "rgmii-id";
> diff --git a/arch/powerpc/boot/dts/p1021rdb-pc.dtsi
> b/arch/powerpc/boot/dts/p1021rdb-pc.dtsi
> index d6274c5..a29c84a 100644
> --- a/arch/powerpc/boot/dts/p1021rdb-pc.dtsi
> +++ b/arch/powerpc/boot/dts/p1021rdb-pc.dtsi
> @@ -224,6 +224,18 @@
> };
> };
>=20
> + ptp_clock@b0e00 {
> + compatible =3D "fsl,etsec-ptp";
> + reg =3D <0xb0e00 0xb0>;
> + interrupts =3D <68 2 0 0 69 2 0 0>;
> + fsl,tclk-period =3D <10>;
> + fsl,tmr-prsc =3D <2>;
> + fsl,tmr-add =3D <2147483670>;
> + fsl,tmr-fiper1 =3D <999999990>;
> + fsl,tmr-fiper2 =3D <99990>;
> + fsl,max-adj =3D <199999999>;
> + };
> +
> enet0: ethernet@b0000 {
> fixed-link =3D <1 1 1000 0 0>;
> phy-connection-type =3D "rgmii-id";
> diff --git a/arch/powerpc/boot/dts/p1022ds.dtsi
> b/arch/powerpc/boot/dts/p1022ds.dtsi
> index 957e0dc..50f915f 100644
> --- a/arch/powerpc/boot/dts/p1022ds.dtsi
> +++ b/arch/powerpc/boot/dts/p1022ds.dtsi
> @@ -215,6 +215,18 @@
> };
> };
>=20
> + ptp_clock@b0e00 {
> + compatible =3D "fsl,etsec-ptp";
> + reg =3D <0xb0e00 0xb0>;
> + interrupts =3D <68 2 0 0 69 2 0 0>;
> + fsl,tclk-period =3D <5>;
> + fsl,tmr-prsc =3D <2>;
> + fsl,tmr-add =3D <3223239997>;
> + fsl,tmr-fiper1 =3D <999999995>;
> + fsl,tmr-fiper2 =3D <99990>;
> + fsl,max-adj =3D <266499999>;
> + };
> +
> ethernet@b0000 {
> phy-handle =3D <&phy0>;
> phy-connection-type =3D "rgmii-id";
> diff --git a/arch/powerpc/boot/dts/p1025twr.dtsi
> b/arch/powerpc/boot/dts/p1025twr.dtsi
> index 8453501..52a6c7e 100644
> --- a/arch/powerpc/boot/dts/p1025twr.dtsi
> +++ b/arch/powerpc/boot/dts/p1025twr.dtsi
> @@ -138,6 +138,18 @@
> };
> };
>=20
> + ptp_clock@b0e00 {
> + compatible =3D "fsl,etsec-ptp";
> + reg =3D <0xb0e00 0xb0>;
> + interrupts =3D <68 2 0 0 69 2 0 0>;
> + fsl,tclk-period =3D <10>;
> + fsl,tmr-prsc =3D <2>;
> + fsl,tmr-add =3D <3221225505>;
> + fsl,tmr-fiper1 =3D <999999990>;
> + fsl,tmr-fiper2 =3D <99990>;
> + fsl,max-adj =3D <133333332>;
> + };
> +
> enet0: ethernet@b0000 {
> phy-handle =3D <&phy0>;
> phy-connection-type =3D "rgmii-id";
> diff --git a/arch/powerpc/boot/dts/p2020rdb-pc.dtsi
> b/arch/powerpc/boot/dts/p2020rdb-pc.dtsi
> index c21d1c7..363172d 100644
> --- a/arch/powerpc/boot/dts/p2020rdb-pc.dtsi
> +++ b/arch/powerpc/boot/dts/p2020rdb-pc.dtsi
> @@ -215,12 +215,12 @@
> };
>=20
> ptp_clock@24e00 {
> - fsl,tclk-period =3D <5>;
> - fsl,tmr-prsc =3D <200>;
> - fsl,tmr-add =3D <0xCCCCCCCD>;
> - fsl,tmr-fiper1 =3D <0x3B9AC9FB>;
> - fsl,tmr-fiper2 =3D <0x0001869B>;
> - fsl,max-adj =3D <249999999>;
> + fsl,tclk-period =3D <5>;
> + fsl,tmr-prsc =3D <2>;
> + fsl,tmr-add =3D <2863311531>;
> + fsl,tmr-fiper1 =3D <999999995>;
> + fsl,tmr-fiper2 =3D <99990>;
> + fsl,max-adj =3D <299999999>;
> };
>=20
> enet0: ethernet@24000 {
> --
> 2.1.0.27.g96db324
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH v2] powerpc/dts: Add and fix 1588 timer node for eTSEC
2015-07-16 2:37 ` Lu Y.B.
@ 2015-07-16 20:38 ` Scott Wood
2015-07-20 6:33 ` Lu Y.B.
0 siblings, 1 reply; 6+ messages in thread
From: Scott Wood @ 2015-07-16 20:38 UTC (permalink / raw)
To: Lu Yangbo-B47093; +Cc: linuxppc-dev, linux-kernel
On Wed, 2015-07-15 at 21:37 -0500, Lu Yangbo-B47093 wrote:
> Any comments?
> Thanks.
Sorry, I must have missed this on my last time through the patch queue. I
see you've decimalized the fiper and max-adj properties, which is good... but
does it really make sense for tmr-add? I'm not familiar with what this value
represents, but the numbers look more natural as hex (e.g. 0xaaaaaaab versus
2863311531).
> > diff --git a/arch/powerpc/boot/dts/p2020rdb-pc.dtsi
> > b/arch/powerpc/boot/dts/p2020rdb-pc.dtsi
> > index c21d1c7..363172d 100644
> > --- a/arch/powerpc/boot/dts/p2020rdb-pc.dtsi
> > +++ b/arch/powerpc/boot/dts/p2020rdb-pc.dtsi
> > @@ -215,12 +215,12 @@
> > };
> >
> > ptp_clock@24e00{
> > - fsl,tclk-period = <5>;
> > - fsl,tmr-prsc = <200>;
> > - fsl,tmr-add = <0xCCCCCCCD>;
> > - fsl,tmr-fiper1 = <0x3B9AC9FB>;
> > - fsl,tmr-fiper2 = <0x0001869B>;
> > - fsl,max-adj = <249999999>;
> > + fsl,tclk-period = <5>;
> > + fsl,tmr-prsc = <2>;
> > + fsl,tmr-add = <2863311531>;
> > + fsl,tmr-fiper1 = <999999995>;
> > + fsl,tmr-fiper2 = <99990>;
> > + fsl,max-adj = <299999999>;
> > };
And here, you're changing the value of fsl,tmr-add and fsl,max-adj. Why?
-Scott
^ permalink raw reply [flat|nested] 6+ messages in thread
* RE: [PATCH v2] powerpc/dts: Add and fix 1588 timer node for eTSEC
2015-07-16 20:38 ` Scott Wood
@ 2015-07-20 6:33 ` Lu Y.B.
2015-07-24 15:07 ` Scott Wood
0 siblings, 1 reply; 6+ messages in thread
From: Lu Y.B. @ 2015-07-20 6:33 UTC (permalink / raw)
To: Scott Wood; +Cc: linuxppc-dev, linux-kernel
PiBPbiBXZWQsIDIwMTUtMDctMTUgYXQgMjE6MzcgLTA1MDAsIEx1IFlhbmdiby1CNDcwOTMgd3Jv
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH v2] powerpc/dts: Add and fix 1588 timer node for eTSEC
2015-07-20 6:33 ` Lu Y.B.
@ 2015-07-24 15:07 ` Scott Wood
2015-07-29 7:21 ` Lu Y.B.
0 siblings, 1 reply; 6+ messages in thread
From: Scott Wood @ 2015-07-24 15:07 UTC (permalink / raw)
To: Lu Yangbo-B47093; +Cc: linuxppc-dev, linux-kernel
On Mon, 2015-07-20 at 01:33 -0500, Lu Yangbo-B47093 wrote:
> > On Wed, 2015-07-15 at 21:37 -0500, Lu Yangbo-B47093 wrote:
> > > Any comments?
> > > Thanks.
> >
> > Sorry, I must have missed this on my last time through the patch queue.
> > I see you've decimalized the fiper and max-adj properties, which is
> > good... but does it really make sense for tmr-add? I'm not familiar with
> > what this value represents, but the numbers look more natural as hex (e.g.
> > 0xaaaaaaab versus 2863311531).
>
> Yes, the fiper value would be writed into fiper registers. And max-adj
> value would be used in ptp driver in driver/ptp/.
> But you insisted that values should be in decimalism in the v1 patch... :)
>
> See the history :)
I didn't insist on decimals for *everything*, just where it makes sense, and
that "it goes in a register" doesn't *automatically* mean that it doesn't
make sense.
################# history ##################
> > > + ptp_clock@b0e00{
> > > + compatible = "fsl,etsec-ptp";
> > > + reg = <0xb0e00 0xb0>;
> > > + interrupts = <68 2 0 0 69 2 0 0>;
> > > + fsl,tclk-period = <5>;
> > > + fsl,tmr-prsc = <2>;
> > > + fsl,tmr-add = <0xcccccccd>;
> > > + fsl,tmr-fiper1 = <0x3b9ac9fb>;
> > > + fsl,tmr-fiper2 = <0x00018696>;
> > > + fsl,max-adj = <249999999>;
> >
> > Please don't use hex for numbers that make more sense as decimal.
> > [Lu Yangbo-B47093] The hex value is register value, I think it's better
> > to use hex.
>
> Whether it goes into a register doesn't matter. Hex values are useful for
> values which are subdivided into various bitfields, or whose hex
> representation is simpler than decimal. I'm not familiar with the details
> of this hardware, but I doubt the former is the case for 0x3b9ac9fb ==
> 9999999995 or 0x18696 == 99990.
>
> -Scott
> ######################################
>
>
> >
> > > > diff --git a/arch/powerpc/boot/dts/p2020rdb-pc.dtsi
> > > > b/arch/powerpc/boot/dts/p2020rdb-pc.dtsi
> > > > index c21d1c7..363172d 100644
> > > > --- a/arch/powerpc/boot/dts/p2020rdb-pc.dtsi
> > > > +++ b/arch/powerpc/boot/dts/p2020rdb-pc.dtsi
> > > > @@ -215,12 +215,12 @@
> > > > };
> > > >
> > > > ptp_clock@24e00{
> > > > - fsl,tclk-period = <5>;
> > > > - fsl,tmr-prsc = <200>;
> > > > - fsl,tmr-add = <0xCCCCCCCD>;
> > > > - fsl,tmr-fiper1 = <0x3B9AC9FB>;
> > > > - fsl,tmr-fiper2 = <0x0001869B>;
> > > > - fsl,max-adj = <249999999>;
> > > > + fsl,tclk-period = <5>;
> > > > + fsl,tmr-prsc = <2>;
> > > > + fsl,tmr-add = <2863311531>;
> > > > + fsl,tmr-fiper1 = <999999995>;
> > > > + fsl,tmr-fiper2 = <99990>;
> > > > + fsl,max-adj = <299999999>;
> > > > };
> >
> > And here, you're changing the value of fsl,tmr-add and fsl,max-adj. Why?
>
> The old values maybe not calculated base on the default eTSEC system clock
> value.
> 1588 timer couldn’t be adjusted correctly by old values.
Explain in the changelog what was wrong with the old values (don't just say
"Fix 1588 timer node in file").
-Scott
^ permalink raw reply [flat|nested] 6+ messages in thread
* RE: [PATCH v2] powerpc/dts: Add and fix 1588 timer node for eTSEC
2015-07-24 15:07 ` Scott Wood
@ 2015-07-29 7:21 ` Lu Y.B.
0 siblings, 0 replies; 6+ messages in thread
From: Lu Y.B. @ 2015-07-29 7:21 UTC (permalink / raw)
To: Scott Wood; +Cc: linuxppc-dev, linux-kernel
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^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2015-07-29 7:37 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2015-05-07 3:29 [PATCH v2] powerpc/dts: Add and fix 1588 timer node for eTSEC Yangbo Lu
2015-07-16 2:37 ` Lu Y.B.
2015-07-16 20:38 ` Scott Wood
2015-07-20 6:33 ` Lu Y.B.
2015-07-24 15:07 ` Scott Wood
2015-07-29 7:21 ` Lu Y.B.
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