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@flygoat.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

diff --git a/arch/mips/loongson64/Kconfig b/arch/mips/loongson64/Kconfig
index c386b8a..517f1f8 100644 (file)
--- 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