From: John Crispin <blogic@openwrt.org>
Date: Wed, 4 Nov 2015 12:14:13 +0000 (+0100)
Subject: MIPS: lantiq: Return correct value for fpi clock on ar9
X-Git-Tag: v4.4-rc1~6^2~19
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=1601078df26605da7a8107bdd3143ef6b9d07e3b;p=platform%2Fkernel%2Flinux-exynos.git

MIPS: lantiq: Return correct value for fpi clock on ar9

Some configurations of AR9 reported the incorrect speed for the fpi bus.

Signed-off-by: Ben Mulvihill <ben.mulvihill@gmail.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11448/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---

diff --git a/arch/mips/lantiq/xway/clk.c b/arch/mips/lantiq/xway/clk.c
index 80aad30..07f6d5b 100644
--- a/arch/mips/lantiq/xway/clk.c
+++ b/arch/mips/lantiq/xway/clk.c
@@ -88,8 +88,9 @@ 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)