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MIPS: Loongson64: Mark RS780 HPET as broken

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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>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
This commit is contained in:
Jiaxun Yang 2020-04-20 21:45:29 +08:00 committed by Thomas Bogendoerfer
parent a89aa749ec
commit f46e1dc982
1 changed files with 3 additions and 5 deletions
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8
arch/mips/loongson64/Kconfig
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@ -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