[U-Boot] [PATCH RFC] arm: mx6: Add CCGR0 configuration to default DCD (spl_sd.cfg)

[Stefan Roese]

While switching a custom i.MX6DL board port to the common mx6
infrastructure without any board specific DCD file (*.cfg), booting
from SD-card (mmc0) via the bmode command (bmode mmc0) did not work
any more. Adding this one line for the CCGR0 solves this issue.

I have to admit that I'm not really sure why this is needed in
this case. So if somebody has an explanation for the need for
this CCGR0 register setup in the DCD, then please let me know.

Signed-off-by: Stefan Roese <sr at denx.de>
Cc: Fabio Estevam <fabio.estevam at freescale.com>
Cc: Stefano Babic <sbabic at denx.de>
---
 arch/arm/imx-common/spl_sd.cfg | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arm/imx-common/spl_sd.cfg b/arch/arm/imx-common/spl_sd.cfg
index 5fc3e8a..8239def 100644
--- a/arch/arm/imx-common/spl_sd.cfg
+++ b/arch/arm/imx-common/spl_sd.cfg
@@ -6,3 +6,12 @@
 
 IMAGE_VERSION	2
 BOOT_FROM	sd
+
+#define __ASSEMBLY__
+#include <config.h>
+#include "asm/arch/mx6-ddr.h"
+#include "asm/arch/iomux.h"
+#include "asm/arch/crm_regs.h"
+
+/* Set the default clock gate to save power */
+DATA 4, CCM_CCGR0, 0x00C03F3F
-- 
2.2.0