openwrt-owl/target/linux/brcm47xx/patches-3.10/091-MIPS-BCM47XX-fix-detect...

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commit 935e93fcc022ff7be7046d2435ce6441e260abfb
Author: Hauke Mehrtens <hauke@hauke-m.de>
Date: Wed Sep 18 13:33:00 2013 +0200
MIPS: BCM47XX: Fix detected clock on Asus WL520GC and WL520GU
The Asus WL520GC and WL520GU are based on the BCM5354 and clocked at
200MHz, but they do not have a clkfreq nvram variable set to the
correct value. This adds a workaround for these devices.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5843/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
--- a/arch/mips/bcm47xx/time.c
+++ b/arch/mips/bcm47xx/time.c
@@ -28,6 +28,7 @@
#include <asm/time.h>
#include <bcm47xx.h>
#include <bcm47xx_nvram.h>
+#include <bcm47xx_board.h>
void __init plat_time_init(void)
{
@@ -35,6 +36,7 @@ void __init plat_time_init(void)
u16 chip_id = 0;
char buf[10];
int len;
+ enum bcm47xx_board board = bcm47xx_board_get();
/*
* Use deterministic values for initial counter interrupt
@@ -64,6 +66,15 @@ void __init plat_time_init(void)
hz = 100000000;
}
+ switch (board) {
+ case BCM47XX_BOARD_ASUS_WL520GC:
+ case BCM47XX_BOARD_ASUS_WL520GU:
+ hz = 100000000;
+ break;
+ default:
+ break;
+ }
+
if (!hz)
hz = 100000000;