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-rw-r--r--target/linux/x86/patches-3.18/001-x86-platform-Fix-Geode-LX-timekeeping-in-the-generic.patch61
1 files changed, 0 insertions, 61 deletions
diff --git a/target/linux/x86/patches-3.18/001-x86-platform-Fix-Geode-LX-timekeeping-in-the-generic.patch b/target/linux/x86/patches-3.18/001-x86-platform-Fix-Geode-LX-timekeeping-in-the-generic.patch
deleted file mode 100644
index 8bd1699627..0000000000
--- a/target/linux/x86/patches-3.18/001-x86-platform-Fix-Geode-LX-timekeeping-in-the-generic.patch
+++ /dev/null
@@ -1,61 +0,0 @@
-From: David Woodhouse <dwmw2@infradead.org>
-Date: Thu, 17 Sep 2015 10:16:54 +0100
-Subject: [PATCH] x86/platform: Fix Geode LX timekeeping in the generic x86
- build
-
-In 2007, commit 07190a08eef36 ("Mark TSC on GeodeLX reliable")
-bypassed verification of the TSC on Geode LX. However, this code
-(now in the check_system_tsc_reliable() function in
-arch/x86/kernel/tsc.c) was only present if CONFIG_MGEODE_LX was
-set.
-
-OpenWRT has recently started building its generic Geode target
-for Geode GX, not LX, to include support for additional
-platforms. This broke the timekeeping on LX-based devices,
-because the TSC wasn't marked as reliable:
-https://dev.openwrt.org/ticket/20531
-
-By adding a runtime check on is_geode_lx(), we can also include
-the fix if CONFIG_MGEODEGX1 or CONFIG_X86_GENERIC are set, thus
-fixing the problem.
-
-Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
-Signed-off-by: Ingo Molnar <mingo@kernel.org>
-Closes #20531
----
-
---- a/arch/x86/kernel/tsc.c
-+++ b/arch/x86/kernel/tsc.c
-@@ -21,6 +21,7 @@
- #include <asm/hypervisor.h>
- #include <asm/nmi.h>
- #include <asm/x86_init.h>
-+#include <asm/geode.h>
-
- unsigned int __read_mostly cpu_khz; /* TSC clocks / usec, not used here */
- EXPORT_SYMBOL(cpu_khz);
-@@ -1004,15 +1005,17 @@ EXPORT_SYMBOL_GPL(mark_tsc_unstable);
-
- static void __init check_system_tsc_reliable(void)
- {
--#ifdef CONFIG_MGEODE_LX
-- /* RTSC counts during suspend */
-+#if defined(CONFIG_MGEODEGX1) || defined(CONFIG_MGEODE_LX) || defined(CONFIG_X86_GENERIC)
-+ if (is_geode_lx()) {
-+ /* RTSC counts during suspend */
- #define RTSC_SUSP 0x100
-- unsigned long res_low, res_high;
-+ unsigned long res_low, res_high;
-
-- rdmsr_safe(MSR_GEODE_BUSCONT_CONF0, &res_low, &res_high);
-- /* Geode_LX - the OLPC CPU has a very reliable TSC */
-- if (res_low & RTSC_SUSP)
-- tsc_clocksource_reliable = 1;
-+ rdmsr_safe(MSR_GEODE_BUSCONT_CONF0, &res_low, &res_high);
-+ /* Geode_LX - the OLPC CPU has a very reliable TSC */
-+ if (res_low & RTSC_SUSP)
-+ tsc_clocksource_reliable = 1;
-+ }
- #endif
- if (boot_cpu_has(X86_FEATURE_TSC_RELIABLE))
- tsc_clocksource_reliable = 1;