linux-kernel - [PATCH] ARM: dts: i.MX25: define SSI FIFO depth

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <1520373499-13623-1-git-send-email-martin@kaiser.cx>
Date:   Tue,  6 Mar 2018 22:58:19 +0100
From:   Martin Kaiser <martin@...ser.cx>
To:     Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <kernel@...gutronix.de>,
        Fabio Estevam <fabio.estevam@....com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Russell King <linux@...linux.org.uk>,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Martin Kaiser <martin@...ser.cx>
Subject: [PATCH] ARM: dts: i.MX25: define SSI FIFO depth

According to the i.MX25 reference manuals, each SSI has four FIFOs. All
of those FIFOs can store up to 15 entries.

The fsl_ssi driver's internal default for the FIFO depth in 8. Set our
non-default FIFO depth explicitly in the Device Tree.

Signed-off-by: Martin Kaiser <martin@...ser.cx>
---
 arch/arm/boot/dts/imx25.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boot/dts/imx25.dtsi b/arch/arm/boot/dts/imx25.dtsi
index 9725705..cf70df2 100644
--- a/arch/arm/boot/dts/imx25.dtsi
+++ b/arch/arm/boot/dts/imx25.dtsi
@@ -269,6 +269,7 @@
 				dmas = <&sdma 24 1 0>,
 				       <&sdma 25 1 0>;
 				dma-names = "rx", "tx";
+				fsl,fifo-depth = <15>;
 				status = "disabled";
 			};
 
@@ -329,6 +330,7 @@
 				dmas = <&sdma 28 1 0>,
 				       <&sdma 29 1 0>;
 				dma-names = "rx", "tx";
+				fsl,fifo-depth = <15>;
 				status = "disabled";
 			};
 
-- 
2.1.4