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From: <patrice.chotard@foss.st.com>
To: <robh+dt@kernel.org>, <mark.rutland@arm.com>,
	<alexandre.torgue@foss.st.com>
Cc: <mcoquelin.stm32@gmail.com>,
	<linux-stm32@st-md-mailman.stormreply.com>,
	<linux@armlinux.org.uk>, <linux-arm-kernel@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>,
	Patrice Chotard <patrice.chotard@foss.st.com>,
	Christophe Kerello <christophe.kerello@st.com>
Subject: [1/1] ARM: dts: stm32: Configure qspi's mdma transfer to block for stm32mp151
Date: Mon, 26 Apr 2021 12:39:56 +0200	[thread overview]
Message-ID: <20210426103956.29007-1-patrice.chotard@foss.st.com> (raw)

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


WARNING: multiple messages have this Message-ID (diff)
From: <patrice.chotard@foss.st.com>
To: <robh+dt@kernel.org>, <mark.rutland@arm.com>,
	<alexandre.torgue@foss.st.com>
Cc: <mcoquelin.stm32@gmail.com>,
	<linux-stm32@st-md-mailman.stormreply.com>,
	<linux@armlinux.org.uk>, <linux-arm-kernel@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>,
	Patrice Chotard <patrice.chotard@foss.st.com>,
	Christophe Kerello <christophe.kerello@st.com>
Subject: [1/1] ARM: dts: stm32: Configure qspi's mdma transfer to block for stm32mp151
Date: Mon, 26 Apr 2021 12:39:56 +0200	[thread overview]
Message-ID: <20210426103956.29007-1-patrice.chotard@foss.st.com> (raw)

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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             reply	other threads:[~2021-04-26 10:40 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-26 10:39 patrice.chotard [this message]
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
2021-04-26 10:44   ` Patrice CHOTARD

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