spi: Kconfig: Create ISSI Kconfig entry

Add ISSI to Kconfig to make it selectable via menuconfig.
Also convert all current platforms.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/configs/stmark2_defconfig b/configs/stmark2_defconfig
index 1b14aff..48e851d 100644
--- a/configs/stmark2_defconfig
+++ b/configs/stmark2_defconfig
@@ -23,6 +23,7 @@
 # CONFIG_NET is not set
 CONFIG_MTD_DEVICE=y
 CONFIG_SPI_FLASH=y
+CONFIG_SPI_FLASH_ISSI=y
 CONFIG_SPI_FLASH_MTD=y
 CONFIG_SPI=y
 CONFIG_CF_SPI=y
diff --git a/configs/zynq_cc108_defconfig b/configs/zynq_cc108_defconfig
index ac8e1f1..26fdafb 100644
--- a/configs/zynq_cc108_defconfig
+++ b/configs/zynq_cc108_defconfig
@@ -35,6 +35,7 @@
 CONFIG_MMC_SDHCI_ZYNQ=y
 CONFIG_SPI_FLASH=y
 CONFIG_SPI_FLASH_BAR=y
+CONFIG_SPI_FLASH_ISSI=y
 CONFIG_SPI_FLASH_MACRONIX=y
 CONFIG_SPI_FLASH_SPANSION=y
 CONFIG_SPI_FLASH_STMICRO=y
diff --git a/configs/zynq_cse_qspi_defconfig b/configs/zynq_cse_qspi_defconfig
index c094a5e..0b2cd8c 100644
--- a/configs/zynq_cse_qspi_defconfig
+++ b/configs/zynq_cse_qspi_defconfig
@@ -55,6 +55,7 @@
 # CONFIG_MMC is not set
 CONFIG_SPI_FLASH=y
 CONFIG_SPI_FLASH_BAR=y
+CONFIG_SPI_FLASH_ISSI=y
 CONFIG_SPI_FLASH_MACRONIX=y
 CONFIG_SPI_FLASH_SPANSION=y
 CONFIG_SPI_FLASH_STMICRO=y
diff --git a/configs/zynq_zc702_defconfig b/configs/zynq_zc702_defconfig
index dd5f834..bac538c 100644
--- a/configs/zynq_zc702_defconfig
+++ b/configs/zynq_zc702_defconfig
@@ -52,6 +52,7 @@
 CONFIG_MMC_SDHCI_ZYNQ=y
 CONFIG_SPI_FLASH=y
 CONFIG_SPI_FLASH_BAR=y
+CONFIG_SPI_FLASH_ISSI=y
 CONFIG_SPI_FLASH_MACRONIX=y
 CONFIG_SPI_FLASH_SPANSION=y
 CONFIG_SPI_FLASH_STMICRO=y
diff --git a/configs/zynq_zc706_defconfig b/configs/zynq_zc706_defconfig
index ea61a96..991784d 100644
--- a/configs/zynq_zc706_defconfig
+++ b/configs/zynq_zc706_defconfig
@@ -50,6 +50,7 @@
 CONFIG_MMC_SDHCI_ZYNQ=y
 CONFIG_SPI_FLASH=y
 CONFIG_SPI_FLASH_BAR=y
+CONFIG_SPI_FLASH_ISSI=y
 CONFIG_SPI_FLASH_MACRONIX=y
 CONFIG_SPI_FLASH_SPANSION=y
 CONFIG_SPI_FLASH_STMICRO=y
diff --git a/configs/zynq_zc770_xm010_defconfig b/configs/zynq_zc770_xm010_defconfig
index 5697ad4..6364e2b 100644
--- a/configs/zynq_zc770_xm010_defconfig
+++ b/configs/zynq_zc770_xm010_defconfig
@@ -42,6 +42,7 @@
 CONFIG_MMC_SDHCI_ZYNQ=y
 CONFIG_SPI_FLASH=y
 CONFIG_SPI_FLASH_BAR=y
+CONFIG_SPI_FLASH_ISSI=y
 CONFIG_SPI_FLASH_MACRONIX=y
 CONFIG_SPI_FLASH_SPANSION=y
 CONFIG_SPI_FLASH_STMICRO=y
diff --git a/configs/zynq_zc770_xm013_defconfig b/configs/zynq_zc770_xm013_defconfig
index e83222d..833753e 100644
--- a/configs/zynq_zc770_xm013_defconfig
+++ b/configs/zynq_zc770_xm013_defconfig
@@ -36,6 +36,7 @@
 # CONFIG_MMC is not set
 CONFIG_SPI_FLASH=y
 CONFIG_SPI_FLASH_BAR=y
+CONFIG_SPI_FLASH_ISSI=y
 CONFIG_SPI_FLASH_MACRONIX=y
 CONFIG_SPI_FLASH_SPANSION=y
 CONFIG_SPI_FLASH_STMICRO=y
diff --git a/drivers/mtd/spi/Kconfig b/drivers/mtd/spi/Kconfig
index 4484cf8..98485b1 100644
--- a/drivers/mtd/spi/Kconfig
+++ b/drivers/mtd/spi/Kconfig
@@ -66,6 +66,11 @@
 	help
 	  Add support for various GigaDevice SPI flash chips (GD25xxx)
 
+config SPI_FLASH_ISSI
+	bool "ISSI SPI flash support"
+	help
+	  Add support for various ISSI SPI flash chips (ISxxx)
+
 config SPI_FLASH_MACRONIX
 	bool "Macronix SPI flash support"
 	help
diff --git a/include/configs/stmark2.h b/include/configs/stmark2.h
index 8f0437f..c408db8 100644
--- a/include/configs/stmark2.h
+++ b/include/configs/stmark2.h
@@ -67,7 +67,6 @@
 #define CONFIG_SF_DEFAULT_SPEED		50000000
 #define CONFIG_SERIAL_FLASH
 #define CONFIG_HARD_SPI
-#define CONFIG_SPI_FLASH_ISSI
 #define CONFIG_ENV_SPI_BUS		0
 #define CONFIG_ENV_SPI_CS		1
 
diff --git a/include/configs/topic_miami.h b/include/configs/topic_miami.h
index 9ab2b2d..f14c4ee 100644
--- a/include/configs/topic_miami.h
+++ b/include/configs/topic_miami.h
@@ -53,7 +53,6 @@
 #define CONFIG_SF_DEFAULT_MODE SPI_MODE_0
 #define CONFIG_ENV_SPI_MAX_HZ CONFIG_SF_DEFAULT_SPEED
 #undef CONFIG_SPI_FLASH_WINBOND
-#undef CONFIG_SPI_FLASH_ISSI
 
 /* Setup proper boot sequences for Miami boards */
 
diff --git a/include/configs/zynq-common.h b/include/configs/zynq-common.h
index 096f9d1..4f9b457 100644
--- a/include/configs/zynq-common.h
+++ b/include/configs/zynq-common.h
@@ -43,7 +43,6 @@
 /* QSPI */
 #ifdef CONFIG_ZYNQ_QSPI
 # define CONFIG_SF_DEFAULT_SPEED	30000000
-# define CONFIG_SPI_FLASH_ISSI
 #endif
 
 /* NOR */