Re: [PATCH 1/1] ARM: dts: stm32: Configure qspi's mdma transfer to block for stm32mp151

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi Patrice

On 4/26/21 12:45 PM, patrice.chotard@xxxxxxxxxxx wrote:
From: Patrice Chotard <patrice.chotard@xxxxxxxxxxx>

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@xxxxxxxxxxx>
Signed-off-by: Patrice Chotard <patrice.chotard@xxxxxxxxxxx>
---
  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>;


Applied on stm32-next.

Thanks.
Alex



[Index of Archives]     [Device Tree Compilter]     [Device Tree Spec]     [Linux Driver Backports]     [Video for Linux]     [Linux USB Devel]     [Linux PCI Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Yosemite Backpacking]


  Powered by Linux