mx6: Use a common SPL configuration file

Many boards use a minimal .cfg file in the SPL case.

Introduce spl_sd.cfg so that we can reuse it.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Stefano Babic <sbabic@denx.de>

board/compulab/cm_fx6/imximage.cfg → arch/arm/imx-common/spl_sd.cfg

@@ -4,5 +4,5 @@
  * SPDX-License-Identifier:	GPL-2.0+
  */
 
-IMAGE_VERSION 2
+IMAGE_VERSION	2
 BOOT_FROM	sd

board/freescale/mx6sabresd/mx6sabresd_spl.cfg

-/*
- * Copyright (C) 2011 Freescale Semiconductor, Inc.
- * Jason Liu <r64343@freescale.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
- *
- * Refer doc/README.imximage for more details about how-to configure
- * and create imximage boot image
- *
- * The syntax is taken as close as possible with the kwbimage
- */
-
-/* image version */
-IMAGE_VERSION 2
-
-/*
- * Boot Device : one of
- * spi, sd (the board has no nand neither onenand)
- */
-BOOT_FROM      sd

board/kosagi/novena/setup.cfg

-/*
- * Copyright (C) 2014 Marek Vasut <marex@denx.de>
- *
- * SPDX-License-Identifier:	GPL-2.0+
- *
- * Refer docs/README.imxmage for more details about how-to configure
- * and create imximage boot image
- *
- * The syntax is taken as close as possible with the kwbimage
- */
-
-/* image version */
-IMAGE_VERSION 2
-
-/* Boot Device : sd */
-BOOT_FROM sd

configs/cm_fx6_defconfig

 CONFIG_SPL=y
-CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=board/compulab/cm_fx6/imximage.cfg,MX6QDL,SPL"
+CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=arch/arm/imx-common/spl_sd.cfg,MX6QDL,SPL"
 +S:CONFIG_ARM=y
 +S:CONFIG_TARGET_CM_FX6=y

configs/mx6sabresd_spl_defconfig

 CONFIG_SPL=y
-CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=board/freescale/mx6sabresd/mx6sabresd_spl.cfg,SPL,MX6Q"
+CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=arch/arm/imx-common/spl_sd.cfg,SPL,MX6Q"
 +S:CONFIG_ARM=y
 +S:CONFIG_TARGET_MX6SABRESD=y
 

configs/novena_defconfig

 CONFIG_SPL=y
-CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=board/kosagi/novena/setup.cfg,MX6Q"
+CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=arch/arm/imx-common/spl_sd.cfg,MX6Q"
 +S:CONFIG_ARM=y
 +S:CONFIG_TARGET_KOSAGI_NOVENA=y