cgtqmx6eval: Use SPI NOR to store the environment

Congatec boards boot from SPI NOR, so it makes more sense to use
SPI NOR to store the environment variables.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Reviewed-by: Fabio Estevam <fabio.estevam@freescale.com>

include/configs/cgtqmx6eval.h

@@ -245,11 +245,21 @@
 	(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET)
 
 /* Environment organization */
-#define CONFIG_ENV_SIZE			(8 * 1024)
-
-#define CONFIG_ENV_IS_IN_MMC
-
+#if defined (CONFIG_ENV_IS_IN_MMC)
 #define CONFIG_ENV_OFFSET		(6 * 64 * 1024)
 #define CONFIG_SYS_MMC_ENV_DEV		0
+#endif
+
+#define CONFIG_ENV_SIZE			(8 * 1024)
+
+#define CONFIG_ENV_IS_IN_SPI_FLASH
+#if defined(CONFIG_ENV_IS_IN_SPI_FLASH)
+#define CONFIG_ENV_OFFSET		(768 * 1024)
+#define CONFIG_ENV_SECT_SIZE		(64 * 1024)
+#define CONFIG_ENV_SPI_BUS		CONFIG_SF_DEFAULT_BUS
+#define CONFIG_ENV_SPI_CS		CONFIG_SF_DEFAULT_CS
+#define CONFIG_ENV_SPI_MODE		CONFIG_SF_DEFAULT_MODE
+#define CONFIG_ENV_SPI_MAX_HZ		CONFIG_SF_DEFAULT_SPEED
+#endif
 
 #endif			       /* __CONFIG_CGTQMX6EVAL_H */