Message ID | 20160725101547.18503-5-vigneshr@ti.com |
---|---|
State | Accepted |
Commit | 70ebdd775b35d8711a80cee27a6ade697afb25d5 |
Delegated to: | Jagannadha Sutradharudu Teki |
Headers | show |
On Mon, Jul 25, 2016 at 03:45:47PM +0530, Vignesh R wrote: > According to AM572x DM SPRS953A, QSPI max bus speed is 76.8MHz. > Therefore update the spi-max-frequency value of QSPI node for DRA74 and > DRA72 evm. This increase flash read speed by ~2MB/s. > > Signed-off-by: Vignesh R <vigneshr@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com> And similar changes are taking place in Linux-land and the DTS will be updated there too, right? Thanks!
On Monday 25 July 2016 07:08 PM, Tom Rini wrote: > On Mon, Jul 25, 2016 at 03:45:47PM +0530, Vignesh R wrote: > >> According to AM572x DM SPRS953A, QSPI max bus speed is 76.8MHz. >> Therefore update the spi-max-frequency value of QSPI node for DRA74 and >> DRA72 evm. This increase flash read speed by ~2MB/s. >> >> Signed-off-by: Vignesh R <vigneshr@ti.com> > > Reviewed-by: Tom Rini <trini@konsulko.com> > > And similar changes are taking place in Linux-land and the DTS will be > updated there too, right? Thanks! Yes, I will be updating Kernel DTS too...
On 25 July 2016 at 19:16, Vignesh R <vigneshr@ti.com> wrote: > > > On Monday 25 July 2016 07:08 PM, Tom Rini wrote: >> On Mon, Jul 25, 2016 at 03:45:47PM +0530, Vignesh R wrote: >> >>> According to AM572x DM SPRS953A, QSPI max bus speed is 76.8MHz. >>> Therefore update the spi-max-frequency value of QSPI node for DRA74 and >>> DRA72 evm. This increase flash read speed by ~2MB/s. >>> >>> Signed-off-by: Vignesh R <vigneshr@ti.com> >> >> Reviewed-by: Tom Rini <trini@konsulko.com> >> >> And similar changes are taking place in Linux-land and the DTS will be >> updated there too, right? Thanks! > > Yes, I will be updating Kernel DTS too... Reviewed-by: Jagan Teki <jteki@openedev.com>
On Monday 25 July 2016 03:45 PM, Vignesh R wrote: > According to AM572x DM SPRS953A, QSPI max bus speed is 76.8MHz. > Therefore update the spi-max-frequency value of QSPI node for DRA74 and > DRA72 evm. This increase flash read speed by ~2MB/s. > > Signed-off-by: Vignesh R <vigneshr@ti.com> > --- Reviewed-by: Mugunthan V N <mugunthanvnm@ti.com> Regards Mugunthan V N
diff --git a/arch/arm/dts/dra7-evm.dts b/arch/arm/dts/dra7-evm.dts index 429b9edc1b2b..8b77a761d211 100644 --- a/arch/arm/dts/dra7-evm.dts +++ b/arch/arm/dts/dra7-evm.dts @@ -491,7 +491,7 @@ pinctrl-names = "default"; pinctrl-0 = <&qspi1_pins>; - spi-max-frequency = <64000000>; + spi-max-frequency = <76800000>; m25p80@0 { compatible = "s25fl256s1","spi-flash"; spi-max-frequency = <64000000>; diff --git a/arch/arm/dts/dra72-evm.dts b/arch/arm/dts/dra72-evm.dts index ced2f1166d8c..c7c5d40adac7 100644 --- a/arch/arm/dts/dra72-evm.dts +++ b/arch/arm/dts/dra72-evm.dts @@ -603,7 +603,7 @@ pinctrl-names = "default"; pinctrl-0 = <&qspi1_pins>; - spi-max-frequency = <64000000>; + spi-max-frequency = <76800000>; m25p80@0 { compatible = "s25fl256s1","spi-flash"; spi-max-frequency = <64000000>;
According to AM572x DM SPRS953A, QSPI max bus speed is 76.8MHz. Therefore update the spi-max-frequency value of QSPI node for DRA74 and DRA72 evm. This increase flash read speed by ~2MB/s. Signed-off-by: Vignesh R <vigneshr@ti.com> --- arch/arm/dts/dra7-evm.dts | 2 +- arch/arm/dts/dra72-evm.dts | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)