powerpc/eSDCH: Specify voltage for T4240QDS

Freescale T4240QDS reference board has extra voltage shifters added
to allow 3.3V operation, so add 3.3v voltage support for T4240QDS.
1.8v and 3.3v is recommand for eMMC and SDHC card.

Signed-off-by: Haijun Zhang <haijun.zhang@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/arch/powerpc/boot/dts/t4240qds.dts b/arch/powerpc/boot/dts/t4240qds.dts
index 0555976dd0f3..eb3c3de4ef53 100644
--- a/arch/powerpc/boot/dts/t4240qds.dts
+++ b/arch/powerpc/boot/dts/t4240qds.dts
@@ -148,6 +148,10 @@
                                 interrupts = <0x1 0x1 0 0>;
                         };
                 };
+
+                sdhc@114000 {
+                        voltage-ranges = <1800 1800 3300 3300>;
+                };
         };
 
         pci0: pcie@ffe240000 {