arm: zynq: Move CONFIG_SF_DUAL_FLASH to defconfig

Move the only use of CONFIG_SF_DUAL_FLASH to defconfig. This makes the
associated topic_miamiplus.h header obsolete, so remove that as well.

Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

README

@@ -2534,12 +2534,6 @@ The following options need to be configured:
 		Define this option to include a destructive SPI flash
 		test ('sf test').
 
-		CONFIG_SF_DUAL_FLASH		Dual flash memories
-
-		Define this option to use dual flash support where two flash
-		memories can be connected with a given cs line.
-		Currently Xilinx Zynq qspi supports these type of connections.
-
 - SystemACE Support:
 		CONFIG_SYSTEMACE
 

configs/topic_miamiplus_defconfig

@@ -1,6 +1,6 @@
 CONFIG_ARM=y
 CONFIG_SYS_VENDOR="topic"
-CONFIG_SYS_CONFIG_NAME="topic_miamiplus"
+CONFIG_SYS_CONFIG_NAME="topic_miami"
 CONFIG_ARCH_ZYNQ=y
 CONFIG_SYS_TEXT_BASE=0x4000000
 CONFIG_BOOT_INIT_FILE="board/topic/zynq/zynq-topic-miamiplus/ps7_regs.txt"
@@ -28,6 +28,7 @@ CONFIG_SPL_DM_SEQ_ALIAS=y
 CONFIG_DFU_RAM=y
 CONFIG_MMC_SDHCI=y
 CONFIG_MMC_SDHCI_ZYNQ=y
+CONFIG_SF_DUAL_FLASH=y
 CONFIG_SPI_FLASH=y
 CONFIG_SPI_FLASH_BAR=y
 CONFIG_SPI_FLASH_STMICRO=y

drivers/mtd/spi/Kconfig

@@ -42,6 +42,13 @@ config SPI_FLASH_BAR
 	  Bank/Extended address registers are used to access the flash
 	  which has size > 16MiB in 3-byte addressing.
 
+config SF_DUAL_FLASH
+	bool "SPI DUAL flash memory support"
+	depends on SPI_FLASH
+	help
+	  Enable this option to support two flash memories connected to a single
+	  controller. Currently Xilinx Zynq qspi supports this.
+
 if SPI_FLASH
 
 config SPI_FLASH_ATMEL

include/configs/topic_miami.h

@@ -56,7 +56,6 @@
 #undef CONFIG_SF_DEFAULT_SPEED
 #define CONFIG_SF_DEFAULT_SPEED	108000000
 #define CONFIG_SF_DEFAULT_MODE SPI_MODE_0
-#undef CONFIG_SF_DUAL_FLASH
 #define CONFIG_ENV_SPI_MAX_HZ CONFIG_SF_DEFAULT_SPEED
 #undef CONFIG_SPI_FLASH_WINBOND
 #undef CONFIG_SPI_FLASH_ISSI

include/configs/topic_miamiplus.h

@@ -1,2 +0,0 @@
-#include "topic_miami.h"
-#define CONFIG_SF_DUAL_FLASH

scripts/config_whitelist.txt

@@ -2284,7 +2284,6 @@ CONFIG_SF_DEFAULT_BUS
 CONFIG_SF_DEFAULT_CS
 CONFIG_SF_DEFAULT_MODE
 CONFIG_SF_DEFAULT_SPEED
-CONFIG_SF_DUAL_FLASH
 CONFIG_SGI_IP28
 CONFIG_SH4_PCI
 CONFIG_SH73A0