microblaze: Add support for distro boot

Add distro boot support for microblaze and enable jtag, qspi,
dhcp, pxe boot targets for distro boot.
Enable DISTRO_DEFAULTS config in microblaze defconfig and also
enable support for spi xilinx driver & spi vendors to access
spi flash by distro boot.

Signed-off-by: T Karthik Reddy <t.karthik.reddy@xilinx.com>
Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/configs/microblaze-generic_defconfig b/configs/microblaze-generic_defconfig
index bfbdb49..df79206 100644
--- a/configs/microblaze-generic_defconfig
+++ b/configs/microblaze-generic_defconfig
@@ -12,6 +12,7 @@
 CONFIG_XILINX_MICROBLAZE0_USE_DIV=1
 CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL=1
 CONFIG_DEFAULT_DEVICE_TREE="microblaze-generic"
+CONFIG_DISTRO_DEFAULTS=y
 CONFIG_FIT=y
 CONFIG_FIT_VERBOSE=y
 CONFIG_BOOTDELAY=-1
@@ -26,8 +27,6 @@
 CONFIG_SPL_NOR_SUPPORT=y
 CONFIG_SPL_OS_BOOT=y
 CONFIG_SYS_OS_BASE=0x2c060000
-CONFIG_HUSH_PARSER=y
-# CONFIG_AUTO_COMPLETE is not set
 CONFIG_SYS_PROMPT="U-Boot-mONStR> "
 CONFIG_CMD_IMLS=y
 CONFIG_CMD_SPL=y
@@ -35,10 +34,7 @@
 CONFIG_CMD_GPIO=y
 CONFIG_CMD_SAVES=y
 # CONFIG_CMD_SETEXPR is not set
-CONFIG_CMD_DHCP=y
 CONFIG_CMD_TFTPPUT=y
-CONFIG_CMD_MII=y
-CONFIG_CMD_PING=y
 CONFIG_CMD_CACHE=y
 CONFIG_CMD_JFFS2=y
 CONFIG_SPL_OF_CONTROL=y
@@ -56,6 +52,12 @@
 CONFIG_FLASH_CFI_MTD=y
 CONFIG_SYS_FLASH_PROTECTION=y
 CONFIG_SYS_FLASH_CFI=y
+CONFIG_SPI_FLASH_ISSI=y
+CONFIG_SPI_FLASH_MACRONIX=y
+CONFIG_SPI_FLASH_SPANSION=y
+CONFIG_SPI_FLASH_STMICRO=y
+CONFIG_SPI_FLASH_SST=y
+CONFIG_SPI_FLASH_WINBOND=y
 CONFIG_PHY_ATHEROS=y
 CONFIG_PHY_BROADCOM=y
 CONFIG_PHY_DAVICOM=y
@@ -71,6 +73,7 @@
 CONFIG_XILINX_EMACLITE=y
 CONFIG_SYS_NS16550=y
 CONFIG_XILINX_UARTLITE=y
+CONFIG_XILINX_SPI=y
 CONFIG_SYSRESET_GPIO=y
 CONFIG_SYSRESET_MICROBLAZE=y
 CONFIG_WDT=y