From c90b2c4fc9c3f5660a359377aabc1998456ae5b1 Mon Sep 17 00:00:00 2001 From: Patrice Chotard Date: Mon, 26 Apr 2021 12:45:36 +0200 Subject: [PATCH] ARM: dts: stm32: Configure qspi's mdma transfer to block for stm32mp151 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 Signed-off-by: Patrice Chotard Signed-off-by: Alexandre Torgue --- 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 fcd3230..3f74d13 100644 --- a/arch/arm/boot/dts/stm32mp151.dtsi +++ b/arch/arm/boot/dts/stm32mp151.dtsi @@ -1369,8 +1369,8 @@ reg = <0x58003000 0x1000>, <0x70000000 0x10000000>; reg-names = "qspi", "qspi_mm"; interrupts = ; - 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>; -- 2.7.4