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MIPS: BCM47XX: Fix detected clock on Asus WL520GC and WL520GU

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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>
This commit is contained in:
Hauke Mehrtens 2013-09-18 13:33:00 +02:00 committed by Ralf Baechle
parent 2224de9d15
commit 8eae19ccae
1 changed files with 11 additions and 0 deletions
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11
arch/mips/bcm47xx/time.c
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@ -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;