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authorJohn Crispin <blogic@openwrt.org>2015-01-23 12:32:28 +0000
committerJohn Crispin <blogic@openwrt.org>2015-01-23 12:32:28 +0000
commit4cc8018f7166be5ad1f90e2c79b7d4cfe1b88d93 (patch)
treefd6463620cc5f3c8b6ce0c0cc32558fd368c564c
parente901f2faae111c558c63f326b4a1aa16c30549a8 (diff)
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lantiq: correct value for fpi clock on ar9
This adds a patch to target/linux/lantiq/patches-3.14 fixing a bug clock code on ar9. The current version returns the wrong value for the fpi clock frequency in some cases. See discussion for further details: https://lists.openwrt.org/pipermail/openwrt-devel/2015-January/030688.html I'm not sure about the patch naming and numbering convention. Do please let me know it this is not OK. Many thanks, Ben Mulvihill Signed-off-by: Ben Mulvihill <ben.mulvihill@gmail.com> git-svn-id: svn://svn.openwrt.org/openwrt/trunk@44083 3c298f89-4303-0410-b956-a3cf2f4a3e73
-rw-r--r--target/linux/lantiq/patches-3.14/0038-MIPS-lantiq-fpi-on-ar9.patch21
1 files changed, 21 insertions, 0 deletions
diff --git a/target/linux/lantiq/patches-3.14/0038-MIPS-lantiq-fpi-on-ar9.patch b/target/linux/lantiq/patches-3.14/0038-MIPS-lantiq-fpi-on-ar9.patch
new file mode 100644
index 0000000000..cfa3a1f79a
--- /dev/null
+++ b/target/linux/lantiq/patches-3.14/0038-MIPS-lantiq-fpi-on-ar9.patch
@@ -0,0 +1,21 @@
+Return correct value for fpi clock on ar9.
+
+Signed-off-by: Ben Mulvihill <ben.mulvihill@gmail.com>
+---
+ arch/mips/lantiq/xway/clk.c | 5 +++--
+ 1 file changed, 3 insertions(+), 2 deletions(-)
+
+--- a/arch/mips/lantiq/xway/clk.c 2015-01-21 10:15:44.000000000 +0100
++++ b/arch/mips/lantiq/xway/clk.c 2015-01-21 10:17:29.000000000 +0100
+@@ -104,8 +104,9 @@ unsigned long ltq_ar9_fpi_hz(void)
+ unsigned long sys = ltq_ar9_sys_hz();
+
+ if (ltq_cgu_r32(CGU_SYS) & BIT(0))
+- return sys;
+- return sys >> 1;
++ return sys / 3;
++ else
++ return sys / 2;
+ }
+
+ unsigned long ltq_ar9_cpu_hz(void)