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From:   Jiaxun Yang <jiaxun.yang@flygoat.com>
To:     linux-mips@vger.kernel.org
Cc:     Jiaxun Yang <jiaxun.yang@flygoat.com>,
        Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
        Rob Herring <robh+dt@kernel.org>,
        Huacai Chen <chenhc@lemote.com>, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org
Message-ID: <20200402104851.368465-5-jiaxun.yang@flygoat.com>
Subject: [PATCH 5/5] MIPS: Loongson64: Mark RS780 HPET as broken
Date:   Thu,  2 Apr 2020 18:48:43 +0800
In-Reply-To: <20200402104851.368465-1-jiaxun.yang@flygoat.com>
References: <20200402104851.368465-1-jiaxun.yang@flygoat.com>
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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@flygoat.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
 =09bool "RS780/SBX00 HPET Timer"
 =09depends on MACH_LOONGSON64
+=09depends on BROKEN
 =09select MIPS_EXTERNAL_TIMER
 =09help
 =09  This option enables the hpet timer of AMD RS780/SBX00.
=20
-=09  If you want to enable the Loongson3 CPUFreq Driver, Please enable
-=09  this option at first, otherwise, You will get wrong system time.
-
-=09  If unsure, say Yes.
-
+=09  Note: This driver is doing some dangerous hack. Please only enable
+=09  it on RS780 systems.
=20
 endif # MACH_LOONGSON64
--=20
2.26.0.rc2