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Message-Id: <20200420073347.157230-6-jiaxun.yang@flygoat.com>
Date: Mon, 20 Apr 2020 15:33:40 +0800
From: Jiaxun Yang <jiaxun.yang@...goat.com>
To: linux-mips@...r.kernel.org
Cc: Jiaxun Yang <jiaxun.yang@...goat.com>,
Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
Rob Herring <robh+dt@...nel.org>,
Huacai Chen <chenhc@...ote.com>, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH RESEND 5/5] MIPS: Loongson64: Mark RS780 HPET as broken
This driver is using some dangerous hack to set MMIO address for HPET,
which might break systems with other kinds of PCH.
Also, as Loongson-3 cpufreq driver never appeared in mainline,
this driver rarely got used.
So we temporarily mark it as broken until we find a better solution.
Signed-off-by: Jiaxun Yang <jiaxun.yang@...goat.com>
---
arch/mips/loongson64/Kconfig | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/arch/mips/loongson64/Kconfig b/arch/mips/loongson64/Kconfig
index c386b8a3c753..16e6acab8cce 100644
--- a/arch/mips/loongson64/Kconfig
+++ b/arch/mips/loongson64/Kconfig
@@ -4,14 +4,12 @@ if MACH_LOONGSON64
config RS780_HPET
bool "RS780/SBX00 HPET Timer"
depends on MACH_LOONGSON64
+ depends on BROKEN
select MIPS_EXTERNAL_TIMER
help
This option enables the hpet timer of AMD RS780/SBX00.
- If you want to enable the Loongson3 CPUFreq Driver, Please enable
- this option at first, otherwise, You will get wrong system time.
-
- If unsure, say Yes.
-
+ Note: This driver is doing some dangerous hack. Please only enable
+ it on RS780E systems.
endif # MACH_LOONGSON64
--
2.26.0.rc2
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