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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>
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Hauke Mehrtens authored and Ralf Baechle committed Oct 29, 2013
1 parent 2224de9 commit 8eae19c
Showing 1 changed file with 11 additions and 0 deletions.
11 changes: 11 additions & 0 deletions arch/mips/bcm47xx/time.c
Original file line number Diff line number Diff line change
Expand Up @@ -28,13 +28,15 @@
#include <asm/time.h>
#include <bcm47xx.h>
#include <bcm47xx_nvram.h>
#include <bcm47xx_board.h>

void __init plat_time_init(void)
{
unsigned long hz = 0;
u16 chip_id = 0;
char buf[10];
int len;
enum bcm47xx_board board = bcm47xx_board_get();

/*
* Use deterministic values for initial counter interrupt
Expand Down Expand Up @@ -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;

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