[PATCH 1/2] arm: dts: k3-am654: Increase OSPI default frequency to 50MHz
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(-)
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-j721e-r5-common-proc-board.dts | 2 +- arch/arm/dts/k3-j721e-som-p0.dtsi | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm/dts/k3-j721e-r5-common-proc-board.dts b/arch/arm/dts/k3-j721e-r5-common-proc-board.dts index 403b158f4900..2dde65d9681d 100644 --- a/arch/arm/dts/k3-j721e-r5-common-proc-board.dts +++ b/arch/arm/dts/k3-j721e-r5-common-proc-board.dts @@ -309,7 +309,7 @@ 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-j721e-som-p0.dtsi b/arch/arm/dts/k3-j721e-som-p0.dtsi index 8497ff3e3e12..946de9c3fc69 100644 --- a/arch/arm/dts/k3-j721e-som-p0.dtsi +++ b/arch/arm/dts/k3-j721e-som-p0.dtsi @@ -87,7 +87,7 @@ 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>;
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>;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>;-- 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
participants (3)
-
Lokesh Vutla -
Pratyush Yadav -
Vignesh Raghavendra