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Date:   Tue, 09 Feb 2021 13:00:26 -0800
From:   nnet <nnet@...tmail.fm>
To:     pali@...nel.org
Cc:     a.heider@...il.com, andrew@...n.ch, gerald@....net,
        gregory.clement@...tlin.com, kabel@...nel.org, kostap@...vell.com,
        linux-arm-kernel@...ts.infradead.org, linux-clk@...r.kernel.org,
        linux-kernel@...r.kernel.org, luka.perkov@...tura.hr,
        miquel.raynal@...tlin.com, mturquette@...libre.com,
        rmk+kernel@...linux.org.uk, sboyd@...nel.org, tmn505@...il.com,
        vladimir.vid@...tura.hr
Subject: Re: [PATCH mvebu v2 00/10] Armada 37xx: Fix cpufreq changing base CPU speed to 800 MHz from 1000 MHz

> If you have other Armada 3720 boards (Espressobin v5/v7, uDPU, Devel Board, ...) then it will be nice to do an additional tests and check if instability issues are finally fixed.

These patches applied to the 5.4.96 in OpenWrt (98d61b5) work fine so far on an Espressobin v7 AFAICT per changing values in /sys/devices/system/cpu/cpufreq/policy0.

Are these changes intended to work @1.2 GHz on the v7?

I have the beige case and heat-sinks with paste on the board, and the power adapter is the Fairway for 2.0A. 

However, the device hangs fairly quickly under load with firmware flashed of the built as below:

diff --git a/package/boot/arm-trusted-firmware-mvebu/Makefile b/package/boot/arm-trusted-firmware-mvebu/Makefile
index c4669edb52..20899c29e7 100644
--- a/package/boot/arm-trusted-firmware-mvebu/Makefile
+++ b/package/boot/arm-trusted-firmware-mvebu/Makefile
@@ -72,7 +72,7 @@ define Trusted-Firmware-A/espressobin-v7-1gb
   BUILD_DEVICES:=globalscale_espressobin-v7
   UBOOT:=espressobin
   DDR_TOPOLOGY:=5
-  CLOCKSPRESET:=CPU_1000_DDR_800
+  CLOCKSPRESET:=CPU_1200_DDR_750
   PLAT:=a3700
 endef

See: https://github.com/openwrt/openwrt/commit/5fae94d987f2261b148c035130a00350c905a13e

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