| Message ID | 20200402132913.23245-1-vigneshr@ti.com |
|---|---|
| State | Accepted |
| Commit | d5a1f4f551761773066aa1ba6276036d10bdf75f |
| Delegated to: | Lokesh Vutla |
| Headers | show |
| Series | [1/2] arm: dts: k3-am654: Increase OSPI default frequency to 50MHz | expand |
On 02/04/20 06:59PM, Vignesh Raghavendra wrote: > In 1 bit mode OSPI can work at upto 50MHz, this provides before write ^^^^^^^^^^^^^^^^^^^^^ Provides _what_ before write performance? Did you mean "provides better write performance"? Same in the second patch too. > performance. Therefore increase frequency from 40MHz to 50MHz > > Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com> > --- > arch/arm/dts/k3-am654-base-board.dts | 2 +- > arch/arm/dts/k3-am654-r5-base-board.dts | 2 +- > 2 files changed, 2 insertions(+), 2 deletions(-) > > diff --git a/arch/arm/dts/k3-am654-base-board.dts b/arch/arm/dts/k3-am654-base-board.dts > index 5058b6c88e96..3ebf4af5e47a 100644 > --- a/arch/arm/dts/k3-am654-base-board.dts > +++ b/arch/arm/dts/k3-am654-base-board.dts > @@ -191,7 +191,7 @@ > reg = <0x0>; > spi-tx-bus-width = <1>; > spi-rx-bus-width = <8>; > - spi-max-frequency = <40000000>; > + spi-max-frequency = <50000000>; > cdns,tshsl-ns = <60>; > cdns,tsd2d-ns = <60>; > cdns,tchsh-ns = <60>; > diff --git a/arch/arm/dts/k3-am654-r5-base-board.dts b/arch/arm/dts/k3-am654-r5-base-board.dts > index 257b56a1b032..e6b78643c197 100644 > --- a/arch/arm/dts/k3-am654-r5-base-board.dts > +++ b/arch/arm/dts/k3-am654-r5-base-board.dts > @@ -268,7 +268,7 @@ > reg = <0x0>; > spi-tx-bus-width = <1>; > spi-rx-bus-width = <8>; > - spi-max-frequency = <40000000>; > + spi-max-frequency = <50000000>; > cdns,tshsl-ns = <60>; > cdns,tsd2d-ns = <60>; > cdns,tchsh-ns = <60>; > -- > 2.26.0 >
On 02/04/20 6:59 PM, Vignesh Raghavendra wrote: > In 1 bit mode OSPI can work at upto 50MHz, this provides before write > performance. Therefore increase frequency from 40MHz to 50MHz > > Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com> Fixed the $commit in both the patches and applied to u-boot-ti. Thanks and regards, Lokesh
On 07/04/20 1:02 pm, Lokesh Vutla wrote: > > > On 02/04/20 6:59 PM, Vignesh Raghavendra wrote: >> In 1 bit mode OSPI can work at upto 50MHz, this provides before write >> performance. Therefore increase frequency from 40MHz to 50MHz >> >> Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com> > > Fixed the $commit in both the patches and applied to u-boot-ti. Thanks! I was about to respin with fix same. Regards Vignesh
diff --git a/arch/arm/dts/k3-am654-base-board.dts b/arch/arm/dts/k3-am654-base-board.dts index 5058b6c88e96..3ebf4af5e47a 100644 --- a/arch/arm/dts/k3-am654-base-board.dts +++ b/arch/arm/dts/k3-am654-base-board.dts @@ -191,7 +191,7 @@ reg = <0x0>; spi-tx-bus-width = <1>; spi-rx-bus-width = <8>; - spi-max-frequency = <40000000>; + spi-max-frequency = <50000000>; cdns,tshsl-ns = <60>; cdns,tsd2d-ns = <60>; cdns,tchsh-ns = <60>; diff --git a/arch/arm/dts/k3-am654-r5-base-board.dts b/arch/arm/dts/k3-am654-r5-base-board.dts index 257b56a1b032..e6b78643c197 100644 --- a/arch/arm/dts/k3-am654-r5-base-board.dts +++ b/arch/arm/dts/k3-am654-r5-base-board.dts @@ -268,7 +268,7 @@ reg = <0x0>; spi-tx-bus-width = <1>; spi-rx-bus-width = <8>; - spi-max-frequency = <40000000>; + spi-max-frequency = <50000000>; cdns,tshsl-ns = <60>; cdns,tsd2d-ns = <60>; cdns,tchsh-ns = <60>;
In 1 bit mode OSPI can work at upto 50MHz, this provides before write performance. Therefore increase frequency from 40MHz to 50MHz Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com> --- arch/arm/dts/k3-am654-base-board.dts | 2 +- arch/arm/dts/k3-am654-r5-base-board.dts | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)