[04/46] ARM: pxa: workaround errata #37 by not using half turbo switching

[Greg KH]

2.6.31-stable review patch.  If anyone has any objections, please let us know.

------------------
From: Dennis O'Brien <dennis.obrien@xxxxxxxxxx>

commit 4367216a099b4df3fa2c4f2b086cda1a1e9afc4e upstream.

PXA27x Errata #37 implies system will hang when switching into or out of
half turbo (HT bit in CLKCFG) mode, workaround this by not using it.

Signed-off-by: Dennis O'Brien <dennis.obrien@xxxxxxxxxx>
Signed-off-by: Eric Miao <eric.y.miao@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

---
 arch/arm/mach-pxa/cpufreq-pxa2xx.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/arm/mach-pxa/cpufreq-pxa2xx.c
+++ b/arch/arm/mach-pxa/cpufreq-pxa2xx.c
@@ -155,7 +155,7 @@ MODULE_PARM_DESC(pxa255_turbo_table, "Se
 
 static pxa_freqs_t pxa27x_freqs[] = {
 	{104000, 104000, PXA27x_CCCR(1,	 8, 2), 0, CCLKCFG2(1, 0, 1),  900000, 1705000 },
-	{156000, 104000, PXA27x_CCCR(1,	 8, 6), 0, CCLKCFG2(1, 1, 1), 1000000, 1705000 },
+	{156000, 104000, PXA27x_CCCR(1,	 8, 3), 0, CCLKCFG2(1, 0, 1), 1000000, 1705000 },
 	{208000, 208000, PXA27x_CCCR(0, 16, 2), 1, CCLKCFG2(0, 0, 1), 1180000, 1705000 },
 	{312000, 208000, PXA27x_CCCR(1, 16, 3), 1, CCLKCFG2(1, 0, 1), 1250000, 1705000 },
 	{416000, 208000, PXA27x_CCCR(1, 16, 4), 1, CCLKCFG2(1, 0, 1), 1350000, 1705000 },


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/