* [1/1] ARM: dts: stm32: Configure qspi's mdma transfer to block for stm32mp151
@ 2021-04-26 10:39 patrice.chotard
2021-04-26 10:44 ` Patrice CHOTARD
0 siblings, 1 reply; 2+ messages in thread
From: patrice.chotard @ 2021-04-26 10:39 UTC (permalink / raw)
To: robh+dt, mark.rutland, alexandre.torgue
Cc: mcoquelin.stm32, linux-stm32, linux, linux-arm-kernel,
linux-kernel, devicetree, Patrice Chotard, Christophe Kerello
From: Patrice Chotard <patrice.chotard@foss.st.com>
Configure qspi's mdma from buffer transfer (max 128 bytes) to
block transfer (max 64K bytes).
mtd_speedtest shows that write throughtput increases :
- from 734 to 782 KiB/s (~6.5%) with s25fl512s SPI-NOR.
- from 4848 to 5319 KiB/s (~9.72%) with Micron SPI-NAND.
Signed-off-by: Christophe Kerello <christophe.kerello@st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
---
arch/arm/boot/dts/stm32mp151.dtsi | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm/boot/dts/stm32mp151.dtsi b/arch/arm/boot/dts/stm32mp151.dtsi
index 4b8031782555..cb326c1e12bc 100644
--- a/arch/arm/boot/dts/stm32mp151.dtsi
+++ b/arch/arm/boot/dts/stm32mp151.dtsi
@@ -1358,8 +1358,8 @@
reg = <0x58003000 0x1000>, <0x70000000 0x10000000>;
reg-names = "qspi", "qspi_mm";
interrupts = <GIC_SPI 92 IRQ_TYPE_LEVEL_HIGH>;
- dmas = <&mdma1 22 0x2 0x100002 0x0 0x0>,
- <&mdma1 22 0x2 0x100008 0x0 0x0>;
+ dmas = <&mdma1 22 0x2 0x10100002 0x0 0x0>,
+ <&mdma1 22 0x2 0x10100008 0x0 0x0>;
dma-names = "tx", "rx";
clocks = <&rcc QSPI_K>;
resets = <&rcc QSPI_R>;
--
2.17.1
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^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [1/1] ARM: dts: stm32: Configure qspi's mdma transfer to block for stm32mp151
2021-04-26 10:39 [1/1] ARM: dts: stm32: Configure qspi's mdma transfer to block for stm32mp151 patrice.chotard
@ 2021-04-26 10:44 ` Patrice CHOTARD
0 siblings, 0 replies; 2+ messages in thread
From: Patrice CHOTARD @ 2021-04-26 10:44 UTC (permalink / raw)
To: robh+dt, mark.rutland, alexandre.torgue
Cc: mcoquelin.stm32, linux-stm32, linux, linux-arm-kernel,
linux-kernel, devicetree, Christophe Kerello
Don't take care of this patch, i will resend it with the correct header.
Patrice
On 4/26/21 12:39 PM, patrice.chotard@foss.st.com wrote:
> From: Patrice Chotard <patrice.chotard@foss.st.com>
>
> Configure qspi's mdma from buffer transfer (max 128 bytes) to
> block transfer (max 64K bytes).
>
> mtd_speedtest shows that write throughtput increases :
> - from 734 to 782 KiB/s (~6.5%) with s25fl512s SPI-NOR.
> - from 4848 to 5319 KiB/s (~9.72%) with Micron SPI-NAND.
>
> Signed-off-by: Christophe Kerello <christophe.kerello@st.com>
> Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
> ---
> arch/arm/boot/dts/stm32mp151.dtsi | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm/boot/dts/stm32mp151.dtsi b/arch/arm/boot/dts/stm32mp151.dtsi
> index 4b8031782555..cb326c1e12bc 100644
> --- a/arch/arm/boot/dts/stm32mp151.dtsi
> +++ b/arch/arm/boot/dts/stm32mp151.dtsi
> @@ -1358,8 +1358,8 @@
> reg = <0x58003000 0x1000>, <0x70000000 0x10000000>;
> reg-names = "qspi", "qspi_mm";
> interrupts = <GIC_SPI 92 IRQ_TYPE_LEVEL_HIGH>;
> - dmas = <&mdma1 22 0x2 0x100002 0x0 0x0>,
> - <&mdma1 22 0x2 0x100008 0x0 0x0>;
> + dmas = <&mdma1 22 0x2 0x10100002 0x0 0x0>,
> + <&mdma1 22 0x2 0x10100008 0x0 0x0>;
> dma-names = "tx", "rx";
> clocks = <&rcc QSPI_K>;
> resets = <&rcc QSPI_R>;
>
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2021-04-26 10:39 [1/1] ARM: dts: stm32: Configure qspi's mdma transfer to block for stm32mp151 patrice.chotard
2021-04-26 10:44 ` Patrice CHOTARD
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