Patchwork [7/7] powerpc/85xx: Add eSDHC support for MPC8536DS boards

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Submitter Anton Vorontsov
Date Aug. 7, 2009, 7:58 p.m.
Message ID <20090807195822.GG2735@oksana.dev.rtsoft.ru>
Download mbox | patch
Permalink /patch/30979/
State Superseded
Delegated to: Kumar Gala
Headers show

Comments

Anton Vorontsov - Aug. 7, 2009, 7:58 p.m.
This patch simply adds sdhci node to the device tree.

We specify clock-frequency manually, so that eSDHC will work without
upgrading U-Boot. Though, that'll only work for default setup (1500
MHz) on new board revisions. For non-default setups, it's recommended
to upgrade U-Boot, since it will fixup clock-frequency automatically.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
---
 arch/powerpc/boot/dts/mpc8536ds.dts |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)
Kumar Gala - Aug. 11, 2009, 1:48 p.m.
On Aug 7, 2009, at 2:58 PM, Anton Vorontsov wrote:

> This patch simply adds sdhci node to the device tree.
>
> We specify clock-frequency manually, so that eSDHC will work without
> upgrading U-Boot. Though, that'll only work for default setup (1500
> MHz) on new board revisions. For non-default setups, it's recommended
> to upgrade U-Boot, since it will fixup clock-frequency automatically.
>
> Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
> ---
> arch/powerpc/boot/dts/mpc8536ds.dts |    8 ++++++++
> 1 files changed, 8 insertions(+), 0 deletions(-)

Can you update the mpc8536ds_36b.dts as well (its in my next branch)

- k

Patch

diff --git a/arch/powerpc/boot/dts/mpc8536ds.dts b/arch/powerpc/boot/dts/mpc8536ds.dts
index 22caf69..815cebb 100644
--- a/arch/powerpc/boot/dts/mpc8536ds.dts
+++ b/arch/powerpc/boot/dts/mpc8536ds.dts
@@ -250,6 +250,14 @@ 
 			phy_type = "ulpi";
 		};
 
+		sdhci@2e000 {
+			compatible = "fsl,mpc8536-esdhc", "fsl,esdhc";
+			reg = <0x2e000 0x1000>;
+			interrupts = <72 0x2>;
+			interrupt-parent = <&mpic>;
+			clock-frequency = <250000000>;
+		};
+
 		serial0: serial@4500 {
 			cell-index = <0>;
 			device_type = "serial";