configs: stm32f4xx: Enable ICACHE and DCACHE

Enable instruction and data caches.
Fix boot_sd command as since commit d409c962 ("armv7m: disable
 icache before linux booting"), instruction cache is automatically
disable before linux booting. "icache off" from boot_sd command
becomes useless, remove it.
Signed-off-by: NPatrice Chotard <patrice.chotard@st.com>

include/configs/stm32f429-discovery.h

@@ -13,9 +13,6 @@
 
 #define CONFIG_SYS_INIT_SP_ADDR		0x10010000
 
-#define CONFIG_SYS_ICACHE_OFF
-#define CONFIG_SYS_DCACHE_OFF
-
 /*
  * Configuration of the external SDRAM memory
  */

include/configs/stm32f429-evaluation.h

@@ -13,9 +13,6 @@
 
 #define CONFIG_SYS_INIT_SP_ADDR		0x10010000
 
-#define CONFIG_SYS_ICACHE_OFF
-#define CONFIG_SYS_DCACHE_OFF
-
 /*
  * Configuration of the external SDRAM memory
  */
@@ -48,7 +45,7 @@
 	"run boot_sd"
 
 #define CONFIG_EXTRA_ENV_SETTINGS \
-	"boot_sd=mmc dev 0;fatload mmc 0 0x00700000 stm32429i-eval.dtb; fatload mmc 0 0x00008000 zImage; icache off; bootz 0x00008000 - 0x00700000"
+	"boot_sd=mmc dev 0;fatload mmc 0 0x00700000 stm32429i-eval.dtb; fatload mmc 0 0x00008000 zImage; bootz 0x00008000 - 0x00700000"
 
 /*
  * Command line configuration.

include/configs/stm32f469-discovery.h

@@ -13,9 +13,6 @@
 
 #define CONFIG_SYS_INIT_SP_ADDR		0x10010000
 
-#define CONFIG_SYS_ICACHE_OFF
-#define CONFIG_SYS_DCACHE_OFF
-
 /*
  * Configuration of the external SDRAM memory
  */
@@ -48,7 +45,7 @@
 	"run boot_sd"
 
 #define CONFIG_EXTRA_ENV_SETTINGS \
-	"boot_sd=mmc dev 0;fatload mmc 0 0x00700000 stm32f469-disco.dtb; fatload mmc 0 0x00008000 zImage; icache off; bootz 0x00008000 - 0x00700000"
+	"boot_sd=mmc dev 0;fatload mmc 0 0x00700000 stm32f469-disco.dtb; fatload mmc 0 0x00008000 zImage; bootz 0x00008000 - 0x00700000"
 
 /*
  * Command line configuration.