[PATCH 01/14] Makefile: Add initial kconfig support for each platform

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From: Anup Patel <apatel@ventanamicro.com>
To: opensbi@lists.infradead.org
Subject: [PATCH 01/14] Makefile: Add initial kconfig support for each platform
Date: Mon, 18 Jul 2022 18:11:57 +0530	[thread overview]
Message-ID: <20220718124210.2177576-2-apatel@ventanamicro.com> (raw)
In-Reply-To: <20220718124210.2177576-1-apatel@ventanamicro.com>

We extend the top-level makefile to allow kconfig based configuration
for each platform where each platform has it's own set of configs with
"defconfig" being the default config.

Signed-off-by: Anup Patel <apatel@ventanamicro.com>
---
 Kconfig                                   | 23 ++++++++++
 Makefile                                  | 54 +++++++++++++++++++++--
 firmware/Kconfig                          |  1 +
 lib/utils/Kconfig                         |  1 +
 platform/andes/ae350/Kconfig              |  5 +++
 platform/andes/ae350/configs/defconfig    |  0
 platform/fpga/ariane/Kconfig              |  5 +++
 platform/fpga/ariane/configs/defconfig    |  0
 platform/fpga/openpiton/Kconfig           |  5 +++
 platform/fpga/openpiton/configs/defconfig |  0
 platform/generic/Kconfig                  |  5 +++
 platform/generic/configs/defconfig        |  0
 platform/kendryte/k210/Kconfig            |  5 +++
 platform/kendryte/k210/configs/defconfig  |  0
 platform/nuclei/ux600/Kconfig             |  5 +++
 platform/nuclei/ux600/configs/defconfig   |  0
 platform/template/Kconfig                 |  5 +++
 platform/template/configs/defconfig       |  0
 18 files changed, 111 insertions(+), 3 deletions(-)
 create mode 100644 Kconfig
 create mode 100644 firmware/Kconfig
 create mode 100644 lib/utils/Kconfig
 create mode 100644 platform/andes/ae350/Kconfig
 create mode 100644 platform/andes/ae350/configs/defconfig
 create mode 100644 platform/fpga/ariane/Kconfig
 create mode 100644 platform/fpga/ariane/configs/defconfig
 create mode 100644 platform/fpga/openpiton/Kconfig
 create mode 100644 platform/fpga/openpiton/configs/defconfig
 create mode 100644 platform/generic/Kconfig
 create mode 100644 platform/generic/configs/defconfig
 create mode 100644 platform/kendryte/k210/Kconfig
 create mode 100644 platform/kendryte/k210/configs/defconfig
 create mode 100644 platform/nuclei/ux600/Kconfig
 create mode 100644 platform/nuclei/ux600/configs/defconfig
 create mode 100644 platform/template/Kconfig
 create mode 100644 platform/template/configs/defconfig

diff --git a/Kconfig b/Kconfig
new file mode 100644
index 0000000..b8615d2
--- /dev/null
+++ b/Kconfig
@@ -0,0 +1,23 @@
+# SPDX-License-Identifier: GPL-2.0
+
+mainmenu "OpenSBI $OPENSBI_PLATFORM Configuration"
+
+config OPENSBI_SRC_DIR
+	string
+	option env="OPENSBI_SRC_DIR"
+
+config OPENSBI_PLATFORM
+	string
+	option env="OPENSBI_PLATFORM"
+
+config OPENSBI_PLATFORM_SRC_DIR
+	string
+	option env="OPENSBI_PLATFORM_SRC_DIR"
+
+menu "Platform Options"
+source "$OPENSBI_PLATFORM_SRC_DIR/Kconfig"
+endmenu
+
+source "$OPENSBI_SRC_DIR/lib/utils/Kconfig"
+
+source "$OPENSBI_SRC_DIR/firmware/Kconfig"
diff --git a/Makefile b/Makefile
index f619ef7..46c7c1c 100644
--- a/Makefile
+++ b/Makefile
@@ -52,6 +52,9 @@ ifdef PLATFORM_DIR
 else
  platform_parent_dir=$(src_dir)/platform
 endif
+ifndef PLATFORM_DEFCONFIG
+PLATFORM_DEFCONFIG=defconfig
+endif
 
 # Check if verbosity is ON for build process
 CMD_PREFIX_DEFAULT := @
@@ -70,6 +73,19 @@ export libsbi_dir=$(CURDIR)/lib/sbi
 export libsbiutils_dir=$(CURDIR)/lib/utils
 export firmware_dir=$(CURDIR)/firmware
 
+# Setup variables for kconfig-frontends
+ifdef PLATFORM
+export KCONFIG_CONFIG=$(platform_build_dir)/.config
+export KCONFIG_AUTOCONFIG=$(platform_build_dir)/auto.conf
+export KCONFIG_TRISTATE=$(platform_build_dir)/tristate.conf
+export KCONFIG_AUTOHEADER=$(platform_build_dir)/autoconf.h
+export KCONFIG_AUTOCONF_CMD=$(platform_build_dir)/include/config/auto.conf.cmd
+# Additional exports for include paths in Kconfig files
+export OPENSBI_SRC_DIR=$(src_dir)
+export OPENSBI_PLATFORM=$(PLATFORM)
+export OPENSBI_PLATFORM_SRC_DIR=$(platform_src_dir)
+endif
+
 # Find library version
 OPENSBI_VERSION_MAJOR=`grep "define OPENSBI_VERSION_MAJOR" $(include_dir)/sbi/sbi_version.h | sed 's/.*MAJOR.*\([0-9][0-9]*\)/\1/'`
 OPENSBI_VERSION_MINOR=`grep "define OPENSBI_VERSION_MINOR" $(include_dir)/sbi/sbi_version.h | sed 's/.*MINOR.*\([0-9][0-9]*\)/\1/'`
@@ -183,8 +199,34 @@ libsbi-object-mks=$(shell if [ -d $(libsbi_dir) ]; then find $(libsbi_dir) -inam
 libsbiutils-object-mks=$(shell if [ -d $(libsbiutils_dir) ]; then find $(libsbiutils_dir) -iname "objects.mk" | sort -r; fi)
 firmware-object-mks=$(shell if [ -d $(firmware_dir) ]; then find $(firmware_dir) -iname "objects.mk" | sort -r; fi)
 
-# Include platform specifig config.mk
+# The "make all" rule should always be first rule
+.PHONY: all
+all:
+
+# Include platform specific .config and config.mk
 ifdef PLATFORM
+.PHONY: menuconfig
+menuconfig: $(platform_src_dir)/Kconfig $(src_dir)/Kconfig
+	$(CMD_PREFIX)mkdir -p `dirname $(KCONFIG_CONFIG)`
+	$(CMD_PREFIX)mkdir -p `dirname $(KCONFIG_AUTOCONF_CMD)`
+	$(CMD_PREFIX)kconfig-mconf $(src_dir)/Kconfig
+	$(CMD_PREFIX)cd $(platform_build_dir) && kconfig-conf --silentoldconfig $(src_dir)/Kconfig
+
+.PHONY: savedefconfig
+savedefconfig: $(platform_src_dir)/Kconfig $(src_dir)/Kconfig
+	$(CMD_PREFIX)mkdir -p `dirname $(KCONFIG_CONFIG)`
+	$(CMD_PREFIX)mkdir -p `dirname $(KCONFIG_AUTOCONF_CMD)`
+	$(CMD_PREFIX)kconfig-conf --savedefconfig `dirname $(KCONFIG_CONFIG)`/defconfig $(src_dir)/Kconfig
+
+$(KCONFIG_CONFIG): $(platform_src_dir)/configs/$(PLATFORM_DEFCONFIG) $(platform_src_dir)/Kconfig $(src_dir)/Kconfig
+	$(CMD_PREFIX)mkdir -p `dirname $(KCONFIG_CONFIG)`
+	$(CMD_PREFIX)mkdir -p `dirname $(KCONFIG_AUTOCONF_CMD)`
+	$(CMD_PREFIX)cp -f $(platform_src_dir)/configs/$(PLATFORM_DEFCONFIG) $(KCONFIG_CONFIG)
+	$(CMD_PREFIX)cd $(platform_build_dir) && kconfig-conf --silentoldconfig --olddefconfig $(src_dir)/Kconfig
+$(KCONFIG_AUTOCONF_CMD): $(KCONFIG_CONFIG)
+include $(KCONFIG_CONFIG)
+include $(KCONFIG_AUTOCONF_CMD)
+
 include $(platform_src_dir)/config.mk
 endif
 
@@ -280,6 +322,9 @@ ifeq ($(BUILD_INFO),y)
 GENFLAGS	+=	-DOPENSBI_BUILD_TIME_STAMP="\"$(OPENSBI_BUILD_TIME_STAMP)\""
 GENFLAGS	+=	-DOPENSBI_BUILD_COMPILER_VERSION="\"$(OPENSBI_BUILD_COMPILER_VERSION)\""
 endif
+ifdef PLATFORM
+GENFLAGS	+=	-include $(KCONFIG_AUTOHEADER)
+endif
 GENFLAGS	+=	$(libsbiutils-genflags-y)
 GENFLAGS	+=	$(platform-genflags-y)
 GENFLAGS	+=	$(firmware-genflags-y)
@@ -419,7 +464,7 @@ targets-y += $(platform_build_dir)/lib/libplatsbi.a
 endif
 targets-y += $(firmware-bins-path-y)
 
-# Default rule "make" should always be first rule
+# The default "make all" rule
 .PHONY: all
 all: $(targets-y)
 
@@ -456,7 +501,7 @@ $(build_dir)/%.o: $(src_dir)/%.S
 	$(call compile_as,$@,$<)
 
 $(build_dir)/%.dep: $(src_dir)/%.carray
-	$(call compile_gen_dep,$@,.c,$<)
+	$(call compile_gen_dep,$@,.c,$< $(KCONFIG_CONFIG))
 	$(call compile_gen_dep,$@,.o,$(@:.dep=.c))
 
 $(build_dir)/%.c: $(src_dir)/%.carray
@@ -523,6 +568,9 @@ docs: $(build_dir)/docs/latex/refman.pdf
 # They should not be included for any "xxxconfig" or "xxxclean" rule
 all-deps-1 = $(if $(findstring config,$(MAKECMDGOALS)),,$(deps-y))
 all-deps-2 = $(if $(findstring clean,$(MAKECMDGOALS)),,$(all-deps-1))
+ifdef PLATFORM
+$(all-deps-2): | $(KCONFIG_CONFIG)
+endif
 -include $(all-deps-2)
 
 # Include external dependency of firmwares after default Makefile rules
diff --git a/firmware/Kconfig b/firmware/Kconfig
new file mode 100644
index 0000000..f66554c
--- /dev/null
+++ b/firmware/Kconfig
@@ -0,0 +1 @@
+# SPDX-License-Identifier: GPL-2.0
diff --git a/lib/utils/Kconfig b/lib/utils/Kconfig
new file mode 100644
index 0000000..f66554c
--- /dev/null
+++ b/lib/utils/Kconfig
@@ -0,0 +1 @@
+# SPDX-License-Identifier: GPL-2.0
diff --git a/platform/andes/ae350/Kconfig b/platform/andes/ae350/Kconfig
new file mode 100644
index 0000000..349c1d3
--- /dev/null
+++ b/platform/andes/ae350/Kconfig
@@ -0,0 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0
+
+config PLATFORM_ANDES_AE350
+	bool
+	default y
diff --git a/platform/andes/ae350/configs/defconfig b/platform/andes/ae350/configs/defconfig
new file mode 100644
index 0000000..e69de29
diff --git a/platform/fpga/ariane/Kconfig b/platform/fpga/ariane/Kconfig
new file mode 100644
index 0000000..26f9beb
--- /dev/null
+++ b/platform/fpga/ariane/Kconfig
@@ -0,0 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0
+
+config PLATFORM_ARIANE_FPGA
+	bool
+	default y
diff --git a/platform/fpga/ariane/configs/defconfig b/platform/fpga/ariane/configs/defconfig
new file mode 100644
index 0000000..e69de29
diff --git a/platform/fpga/openpiton/Kconfig b/platform/fpga/openpiton/Kconfig
new file mode 100644
index 0000000..8bfa85a
--- /dev/null
+++ b/platform/fpga/openpiton/Kconfig
@@ -0,0 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0
+
+config PLATFORM_OPENPITON_FPGA
+	bool
+	default y
diff --git a/platform/fpga/openpiton/configs/defconfig b/platform/fpga/openpiton/configs/defconfig
new file mode 100644
index 0000000..e69de29
diff --git a/platform/generic/Kconfig b/platform/generic/Kconfig
new file mode 100644
index 0000000..a811a05
--- /dev/null
+++ b/platform/generic/Kconfig
@@ -0,0 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0
+
+config PLATFORM_GENERIC
+	bool
+	default y
diff --git a/platform/generic/configs/defconfig b/platform/generic/configs/defconfig
new file mode 100644
index 0000000..e69de29
diff --git a/platform/kendryte/k210/Kconfig b/platform/kendryte/k210/Kconfig
new file mode 100644
index 0000000..726423a
--- /dev/null
+++ b/platform/kendryte/k210/Kconfig
@@ -0,0 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0
+
+config PLATFORM_KENDRYTE_K210
+	bool
+	default y
diff --git a/platform/kendryte/k210/configs/defconfig b/platform/kendryte/k210/configs/defconfig
new file mode 100644
index 0000000..e69de29
diff --git a/platform/nuclei/ux600/Kconfig b/platform/nuclei/ux600/Kconfig
new file mode 100644
index 0000000..bb8410f
--- /dev/null
+++ b/platform/nuclei/ux600/Kconfig
@@ -0,0 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0
+
+config PLATFORM_NUCLEI_UX600
+	bool
+	default y
diff --git a/platform/nuclei/ux600/configs/defconfig b/platform/nuclei/ux600/configs/defconfig
new file mode 100644
index 0000000..e69de29
diff --git a/platform/template/Kconfig b/platform/template/Kconfig
new file mode 100644
index 0000000..bd95ea0
--- /dev/null
+++ b/platform/template/Kconfig
@@ -0,0 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0
+
+config PLATFORM_TEMPLATE
+	bool
+	default y
diff --git a/platform/template/configs/defconfig b/platform/template/configs/defconfig
new file mode 100644
index 0000000..e69de29
-- 
2.34.1

next prev parent reply	other threads:[~2022-07-18 12:41 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-07-18 12:41 [PATCH 00/14] OpenSBI Kconfig Support Anup Patel
2022-07-18 12:41 ` Anup Patel [this message]
2022-07-18 13:51   ` [PATCH 01/14] Makefile: Add initial kconfig support for each platform Jessica Clarke
2022-07-18 14:44     ` Anup Patel
2022-07-18 12:41 ` [PATCH 02/14] Makefile: Compile lib/utils sources separately " Anup Patel
2022-07-18 12:41 ` [PATCH 03/14] lib: utils/serial: Use kconfig for enabling/disabling drivers Anup Patel
2022-07-18 12:42 ` [PATCH 04/14] lib: utils/reset: " Anup Patel
2022-07-18 12:42 ` [PATCH 05/14] lib: utils/sys: " Anup Patel
2022-07-18 12:42 ` [PATCH 06/14] lib: utils/timer: " Anup Patel
2022-07-18 12:42 ` [PATCH 07/14] lib: utils/ipi: " Anup Patel
2022-07-18 12:42 ` [PATCH 08/14] lib: utils/irqchip: " Anup Patel
2022-07-18 12:42 ` [PATCH 09/14] lib: utils/i2c: " Anup Patel
2022-07-18 12:42 ` [PATCH 10/14] lib: utils/gpio: " Anup Patel
2022-07-18 12:42 ` [PATCH 11/14] lib: utils/fdt: Use kconfig for enabling/disabling Anup Patel
2022-07-18 12:42 ` [PATCH 12/14] platform: generic: Use kconfig for enabling/disabling overrides Anup Patel
2022-07-18 12:42 ` [PATCH 13/14] platform: Remove redundant config.mk from all platforms Anup Patel
2022-07-18 12:42 ` [PATCH 14/14] docs: Update documentation for kconfig support Anup Patel

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