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authorGravatar Alistair Francis <Alistair.Francis@wdc.com>2019-03-20 23:05:21 +0000
committerGravatar Thomas Petazzoni <thomas.petazzoni@bootlin.com>2019-03-26 13:30:48 +0100
commitcbce379fafd205c6540a1a076b00bdd35db9b6d7 (patch)
tree07ef9db661c13c178d2a70f2f42b2c9582ff6b75 /boot
parent4359e877d39d1bc95bae092b6b16d76b9e25c030 (diff)
downloadbuildroot-cbce379fafd205c6540a1a076b00bdd35db9b6d7.tar.gz
buildroot-cbce379fafd205c6540a1a076b00bdd35db9b6d7.tar.bz2
boot/opensbi: new package
OpenSBI is a much improved alternative to BBL (riscv-pk). Add OpenSBI support to buildroot. Signed-off-by: Alistair Francis <alistair.francis@wdc.com> [Thomas: - disable target installation, as we install nothing - enable staging installation - enable images installation only when needed - improve the comment about the staging installation] Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Diffstat (limited to 'boot')
-rw-r--r--boot/Config.in1
-rw-r--r--boot/opensbi/Config.in25
-rw-r--r--boot/opensbi/opensbi.mk41
3 files changed, 67 insertions, 0 deletions
diff --git a/boot/Config.in b/boot/Config.in
index 74481e7545..97bd3de6e9 100644
--- a/boot/Config.in
+++ b/boot/Config.in
@@ -14,6 +14,7 @@ source "boot/lpc32xxcdl/Config.in"
source "boot/mv-ddr-marvell/Config.in"
source "boot/mxs-bootlets/Config.in"
source "boot/optee-os/Config.in"
+source "boot/opensbi/Config.in"
source "boot/riscv-pk/Config.in"
source "boot/s500-bootloader/Config.in"
source "boot/shim/Config.in"
diff --git a/boot/opensbi/Config.in b/boot/opensbi/Config.in
new file mode 100644
index 0000000000..5f3cc13312
--- /dev/null
+++ b/boot/opensbi/Config.in
@@ -0,0 +1,25 @@
+config BR2_TARGET_OPENSBI
+ bool "opensbi"
+ depends on BR2_riscv
+ help
+ OpenSBI aims to provide an open-source and extensible
+ implementation of the RISC-V SBI specification for a platform
+ specific firmware (M-mode) and a general purpose OS,
+ hypervisor or bootloader (S-mode or HS-mode). OpenSBI
+ implementation can be easily extended by RISC-V platform or
+ System-on-Chip vendors to fit a particular hadware
+ configuration.
+
+ https://github.com/riscv/opensbi.git
+
+if BR2_TARGET_OPENSBI
+config BR2_TARGET_OPENSBI_PLAT
+ string "OpenSBI Platform"
+ default ""
+ help
+ Specifies the OpenSBI platform to build. If no platform is
+ specified only the OpenSBI platform independent static
+ library libsbi.a is built. If a platform is specified then
+ the platform specific static library libplatsbi.a and firmware
+ examples are built.
+endif
diff --git a/boot/opensbi/opensbi.mk b/boot/opensbi/opensbi.mk
new file mode 100644
index 0000000000..b0b413abf9
--- /dev/null
+++ b/boot/opensbi/opensbi.mk
@@ -0,0 +1,41 @@
+################################################################################
+#
+# opensbi
+#
+################################################################################
+
+OPENSBI_VERSION = v0.3
+OPENSBI_SITE = $(call github,riscv,opensbi,$(OPENSBI_VERSION))
+OPENSBI_LICENSE = BSD-2-Clause
+OPENSBI_LICENSE_FILES = COPYING.BSD
+OPENSBI_INSTALL_TARGET = NO
+OPENSBI_INSTALL_STAGING = YES
+
+OPENSBI_MAKE_ENV = \
+ CROSS_COMPILE=$(TARGET_CROSS)
+
+OPENSBI_PLAT = $(call qstrip,$(BR2_TARGET_OPENSBI_PLAT))
+ifneq ($(OPENSBI_PLAT),)
+OPENSBI_MAKE_ENV += PLATFORM=$(OPENSBI_PLAT)
+endif
+
+define OPENSBI_BUILD_CMDS
+ $(TARGET_MAKE_ENV) $(OPENSBI_MAKE_ENV) $(MAKE) -C $(@D)
+endef
+
+ifneq ($(OPENSBI_PLAT),)
+OPENSBI_INSTALL_IMAGES = YES
+define OPENSBI_INSTALL_IMAGES_CMDS
+ $(INSTALL) -m 0644 -D $(@D)/build/platform/$(OPENSBI_PLAT)/firmware/fw_jump.bin $(BINARIES_DIR)/fw_jump.bin
+ $(INSTALL) -m 0644 -D $(@D)/build/platform/$(OPENSBI_PLAT)/firmware/fw_jump.elf $(BINARIES_DIR)/fw_jump.elf
+endef
+endif
+
+# libsbi.a is not a library meant to be linked in user-space code, but
+# with bare metal code, which is why we don't install it in
+# $(STAGING_DIR)/usr/lib
+define OPENSBI_INSTALL_STAGING_CMDS
+ $(INSTALL) -m 0644 -D $(@D)/build/lib/libsbi.a $(STAGING_DIR)/usr/share/opensbi/libsbi.a
+endef
+
+$(eval $(generic-package))