microblaze: Select compilation flags via Kconfig

Remove autogenerated config.mk and select CPU options via Kconfig.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

board/xilinx/microblaze-generic/Kconfig

@@ -9,4 +9,20 @@ config SYS_VENDOR
 config SYS_CONFIG_NAME
 	default "microblaze-generic"
 
+config XILINX_MICROBLAZE0_USE_PCMP_INSTR
+	int "USE_PCMP_INSTR range (0:1)"
+	default 0
+
+config XILINX_MICROBLAZE0_USE_BARREL
+	int "USE_BARREL range (0:1)"
+	default 0
+
+config XILINX_MICROBLAZE0_USE_DIV
+	int "USE_DIV range (0:1)"
+	default 0
+
+config XILINX_MICROBLAZE0_USE_HW_MUL
+	int "USE_HW_MUL values (0=NONE, 1=MUL32, 2=MUL64)"
+	default 0
+
 endif

board/xilinx/microblaze-generic/config.mk

@@ -1,16 +1,16 @@
 #
-# (C) Copyright 2007 Michal Simek
+# (C) Copyright 2007 - 2016 Michal Simek
 #
 # Michal SIMEK <monstr@monstr.eu>
 #
 # SPDX-License-Identifier:	GPL-2.0+
 #
-# CAUTION: This file is a faked configuration !!!
-#          There is no real target for the microblaze-generic
-#          configuration. You have to replace this file with
-#          the generated file from your Xilinx design flow.
-#
 
-PLATFORM_CPPFLAGS += -mno-xl-soft-mul
-PLATFORM_CPPFLAGS += -mno-xl-soft-div
-PLATFORM_CPPFLAGS += -mxl-barrel-shift
+# USE_HW_MUL can be 0, 1, or 2, defining a hierarchy of HW Mul support.
+CPUFLAGS-$(subst 1,,$(CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL)) += -mxl-multiply-high
+CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL) += -mno-xl-soft-mul
+CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_DIV) += -mno-xl-soft-div
+CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_BARREL) += -mxl-barrel-shift
+CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_PCMP_INSTR) += -mxl-pattern-compare
+
+PLATFORM_CPPFLAGS += $(CPUFLAGS-1) $(CPUFLAGS-2)

configs/microblaze-generic_defconfig

@@ -2,6 +2,9 @@ CONFIG_MICROBLAZE=y
 CONFIG_SPL_SYS_MALLOC_SIMPLE=y
 CONFIG_SPL_DM=y
 CONFIG_TARGET_MICROBLAZE_GENERIC=y
+CONFIG_XILINX_MICROBLAZE0_USE_BARREL=1
+CONFIG_XILINX_MICROBLAZE0_USE_DIV=1
+CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL=1
 CONFIG_SYS_TEXT_BASE=0x29000000
 CONFIG_DEFAULT_DEVICE_TREE="microblaze-generic"
 CONFIG_SPL=y