* [patch 056/177] dts: add ESDHC weird voltage bits workaround
@ 2010-08-11 1:02 akpm
0 siblings, 0 replies; only message in thread
From: akpm @ 2010-08-11 1:02 UTC (permalink / raw)
To: torvalds
Cc: akpm, tie-fei.zang, Chang-Ming.Huang, benh, galak, grant.likely,
linux-mmc
From: Roy Zang <tie-fei.zang@freescale.com>
P4080 ESDHC controller does not support 1.8V and 3.0V voltage. but the
host controller capabilities register wrongly set the bits. This patch
adds the workaround to correct the weird voltage setting bits. Only 3.3V
voltage is supported for P4080 ESDHC controller.
Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Cc: Jerry Huang <Chang-Ming.Huang@freescale.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Kumar Gala <galak@gate.crashing.org>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
arch/powerpc/boot/dts/p4080ds.dts | 1 +
1 file changed, 1 insertion(+)
diff -puN arch/powerpc/boot/dts/p4080ds.dts~dts-add-esdhc-weird-voltage-bits-workaround arch/powerpc/boot/dts/p4080ds.dts
--- a/arch/powerpc/boot/dts/p4080ds.dts~dts-add-esdhc-weird-voltage-bits-workaround
+++ a/arch/powerpc/boot/dts/p4080ds.dts
@@ -280,6 +280,7 @@
reg = <0x114000 0x1000>;
interrupts = <48 2>;
interrupt-parent = <&mpic>;
+ voltage-ranges = <3300 3300>;
sdhci,auto-cmd12;
};
_
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2010-08-11 1:02 [patch 056/177] dts: add ESDHC weird voltage bits workaround akpm
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