* [Buildroot] [PATCH 0/2] Add support for rpi3 64bits target @ 2017-04-14 21:45 Gaël PORTAY 2017-04-14 21:45 ` [Buildroot] [PATCH 1/2] rpi-firmware: allow to build for aarch64 targets Gaël PORTAY 2017-04-14 21:45 ` [Buildroot] [PATCH 2/2] configs: add raspberrypi3 64bits defconfig Gaël PORTAY 0 siblings, 2 replies; 9+ messages in thread From: Gaël PORTAY @ 2017-04-14 21:45 UTC (permalink / raw) To: buildroot Hi, Those two patches bring the support for a 64bits image of the RaspberryPi 3. The first patch makes the rpi-firmware package to be available for aarch64 targets (so it can be used by the second patch). The second patch adds a minimal defconfig to build a 64bits rpi3 image. # uname -a Linux buildroot 4.9.13-v8 #1 SMP PREEMPT Fri Apr 14 17:33:30 EDT 2017 aarch64 GNU/Linux Regards, Ga?l PORTAY (2): rpi-firmware: allow to build for aarch64 targets configs: add raspberrypi3 64bits defconfig board/raspberrypi/genimage-raspberrypi3-64.cfg | 31 +++++++++++++++++++++ board/raspberrypi/post-image.sh | 23 ++++++++++++++++ configs/raspberrypi3_64_defconfig | 37 ++++++++++++++++++++++++++ package/rpi-firmware/Config.in | 2 +- 4 files changed, 92 insertions(+), 1 deletion(-) create mode 100644 board/raspberrypi/genimage-raspberrypi3-64.cfg create mode 100644 configs/raspberrypi3_64_defconfig -- 2.12.1 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Buildroot] [PATCH 1/2] rpi-firmware: allow to build for aarch64 targets 2017-04-14 21:45 [Buildroot] [PATCH 0/2] Add support for rpi3 64bits target Gaël PORTAY @ 2017-04-14 21:45 ` Gaël PORTAY 2017-04-15 8:27 ` Thomas Petazzoni 2017-04-14 21:45 ` [Buildroot] [PATCH 2/2] configs: add raspberrypi3 64bits defconfig Gaël PORTAY 1 sibling, 1 reply; 9+ messages in thread From: Gaël PORTAY @ 2017-04-14 21:45 UTC (permalink / raw) To: buildroot The RaspberryPi 3 is based on a AArch64 CPU and requires binaries from this package. Signed-off-by: Ga?l PORTAY <gael.portay@savoirfairelinux.com> --- package/rpi-firmware/Config.in | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/package/rpi-firmware/Config.in b/package/rpi-firmware/Config.in index c2983aa84..7b37a3072 100644 --- a/package/rpi-firmware/Config.in +++ b/package/rpi-firmware/Config.in @@ -1,6 +1,6 @@ config BR2_PACKAGE_RPI_FIRMWARE bool "rpi-firmware" - depends on BR2_arm + depends on BR2_arm || BR2_aarch64 help RaspberryPi Firmware Pre-compiled binaries of the current bootloader and GPU firmware -- 2.12.1 ^ permalink raw reply related [flat|nested] 9+ messages in thread
* [Buildroot] [PATCH 1/2] rpi-firmware: allow to build for aarch64 targets 2017-04-14 21:45 ` [Buildroot] [PATCH 1/2] rpi-firmware: allow to build for aarch64 targets Gaël PORTAY @ 2017-04-15 8:27 ` Thomas Petazzoni 2017-04-15 11:43 ` Gaël PORTAY 0 siblings, 1 reply; 9+ messages in thread From: Thomas Petazzoni @ 2017-04-15 8:27 UTC (permalink / raw) To: buildroot Hello, On Fri, 14 Apr 2017 17:45:50 -0400, Ga?l PORTAY wrote: > The RaspberryPi 3 is based on a AArch64 CPU and requires binaries from > this package. > > Signed-off-by: Ga?l PORTAY <gael.portay@savoirfairelinux.com> > --- > package/rpi-firmware/Config.in | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) Applied to master, thanks. Thomas -- Thomas Petazzoni, CTO, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Buildroot] [PATCH 1/2] rpi-firmware: allow to build for aarch64 targets 2017-04-15 8:27 ` Thomas Petazzoni @ 2017-04-15 11:43 ` Gaël PORTAY 0 siblings, 0 replies; 9+ messages in thread From: Gaël PORTAY @ 2017-04-15 11:43 UTC (permalink / raw) To: buildroot Thomas, On Sat, Apr 15, 2017 at 10:27:27AM +0200, Thomas Petazzoni wrote: > Hello, > > On Fri, 14 Apr 2017 17:45:50 -0400, Ga?l PORTAY wrote: > > The RaspberryPi 3 is based on a AArch64 CPU and requires binaries from > > this package. > > > > Signed-off-by: Ga?l PORTAY <gael.portay@savoirfairelinux.com> > > --- > > package/rpi-firmware/Config.in | 2 +- > > 1 file changed, 1 insertion(+), 1 deletion(-) > > Applied to master, thanks. > > Thomas > -- > Thomas Petazzoni, CTO, Free Electrons > Embedded Linux, Kernel and Android engineering > http://free-electrons.com Thanks. Ga?l ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Buildroot] [PATCH 2/2] configs: add raspberrypi3 64bits defconfig 2017-04-14 21:45 [Buildroot] [PATCH 0/2] Add support for rpi3 64bits target Gaël PORTAY 2017-04-14 21:45 ` [Buildroot] [PATCH 1/2] rpi-firmware: allow to build for aarch64 targets Gaël PORTAY @ 2017-04-14 21:45 ` Gaël PORTAY 2017-04-14 22:22 ` Arnout Vandecappelle 1 sibling, 1 reply; 9+ messages in thread From: Gaël PORTAY @ 2017-04-14 21:45 UTC (permalink / raw) To: buildroot This configuration builds a 64bit image for RaspberryPi 3. Signed-off-by: Ga?l PORTAY <gael.portay@savoirfairelinux.com> --- board/raspberrypi/genimage-raspberrypi3-64.cfg | 31 +++++++++++++++++++++ board/raspberrypi/post-image.sh | 23 ++++++++++++++++ configs/raspberrypi3_64_defconfig | 37 ++++++++++++++++++++++++++ 3 files changed, 91 insertions(+) create mode 100644 board/raspberrypi/genimage-raspberrypi3-64.cfg create mode 100644 configs/raspberrypi3_64_defconfig diff --git a/board/raspberrypi/genimage-raspberrypi3-64.cfg b/board/raspberrypi/genimage-raspberrypi3-64.cfg new file mode 100644 index 000000000..c5f86527d --- /dev/null +++ b/board/raspberrypi/genimage-raspberrypi3-64.cfg @@ -0,0 +1,31 @@ +image boot.vfat { + vfat { + files = { + "bcm2710-rpi-3-b.dtb", + "bcm2837-rpi-3-b.dtb", + "rpi-firmware/bootcode.bin", + "rpi-firmware/cmdline.txt", + "rpi-firmware/config.txt", + "rpi-firmware/fixup.dat", + "rpi-firmware/start.elf", + "Image" + } + } + size = 32M +} + +image sdcard.img { + hdimage { + } + + partition boot { + partition-type = 0xC + bootable = "true" + image = "boot.vfat" + } + + partition rootfs { + partition-type = 0x83 + image = "rootfs.ext4" + } +} diff --git a/board/raspberrypi/post-image.sh b/board/raspberrypi/post-image.sh index b2bb07067..e4127c9ea 100755 --- a/board/raspberrypi/post-image.sh +++ b/board/raspberrypi/post-image.sh @@ -16,6 +16,29 @@ dtoverlay=pi3-miniuart-bt __EOF__ fi ;; + --aarch64) + # Run a 64bits kernel (armv8) + sed -e '/^kernel=/s,=.*,=Image,' -i "${BINARIES_DIR}/rpi-firmware/config.txt" + if ! grep -qE '^arm_control=0x200' "${BINARIES_DIR}/rpi-firmware/config.txt"; then + cat << __EOF__ >> "${BINARIES_DIR}/rpi-firmware/config.txt" + +# enable 64bits support +arm_control=0x200 +__EOF__ + fi + + # Enable uart console + if ! grep -qE '^enable_uart=1' "${BINARIES_DIR}/rpi-firmware/config.txt"; then + cat << __EOF__ >> "${BINARIES_DIR}/rpi-firmware/config.txt" + +# enable rpi3 ttyS0 serial console +enable_uart=1 +__EOF__ + fi + + # Use 64bits conffile + GENIMAGE_CFG="${BOARD_DIR}/genimage-${BOARD_NAME}-64.cfg" + ;; esac rm -rf "${GENIMAGE_TMP}" diff --git a/configs/raspberrypi3_64_defconfig b/configs/raspberrypi3_64_defconfig new file mode 100644 index 000000000..ddc6842f9 --- /dev/null +++ b/configs/raspberrypi3_64_defconfig @@ -0,0 +1,37 @@ +BR2_aarch64=y + +BR2_GCC_VERSION_6_X=y +BR2_TOOLCHAIN_BUILDROOT_GLIBC=y +BR2_TOOLCHAIN_BUILDROOT_CXX=y + +BR2_SYSTEM_DHCP="eth0" + +# Linux headers same as kernel, a 4.9 series +BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_9=y + +BR2_LINUX_KERNEL=y +BR2_LINUX_KERNEL_CUSTOM_GIT=y +BR2_LINUX_KERNEL_CUSTOM_REPO_URL="https://github.com/raspberrypi/linux.git" +BR2_LINUX_KERNEL_CUSTOM_REPO_VERSION="935c7ce84c982a26f567a03a58a1537424569938" +BR2_LINUX_KERNEL_DEFCONFIG="bcmrpi3" + +# Build the DTB from the kernel sources +BR2_LINUX_KERNEL_DTS_SUPPORT=y +BR2_LINUX_KERNEL_INTREE_DTS_NAME="broadcom/bcm2710-rpi-3-b broadcom/bcm2837-rpi-3-b" + +BR2_PACKAGE_RPI_FIRMWARE=y +# BR2_PACKAGE_RPI_FIRMWARE_INSTALL_DTB_OVERLAYS is not set + +# Required tools to create the SD image +BR2_PACKAGE_HOST_DOSFSTOOLS=y +BR2_PACKAGE_HOST_GENIMAGE=y +BR2_PACKAGE_HOST_MTOOLS=y + +# Filesystem / image +BR2_TARGET_ROOTFS_EXT2=y +BR2_TARGET_ROOTFS_EXT2_4=y +BR2_TARGET_ROOTFS_EXT2_BLOCKS=126976 +# BR2_TARGET_ROOTFS_TAR is not set +BR2_ROOTFS_POST_BUILD_SCRIPT="board/raspberrypi3/post-build.sh" +BR2_ROOTFS_POST_IMAGE_SCRIPT="board/raspberrypi3/post-image.sh" +BR2_ROOTFS_POST_SCRIPT_ARGS="--aarch64" -- 2.12.1 ^ permalink raw reply related [flat|nested] 9+ messages in thread
* [Buildroot] [PATCH 2/2] configs: add raspberrypi3 64bits defconfig 2017-04-14 21:45 ` [Buildroot] [PATCH 2/2] configs: add raspberrypi3 64bits defconfig Gaël PORTAY @ 2017-04-14 22:22 ` Arnout Vandecappelle 2017-04-14 23:16 ` Gaël PORTAY ` (2 more replies) 0 siblings, 3 replies; 9+ messages in thread From: Arnout Vandecappelle @ 2017-04-14 22:22 UTC (permalink / raw) To: buildroot On 14-04-17 23:45, Ga?l PORTAY wrote: [snip] > diff --git a/board/raspberrypi/post-image.sh b/board/raspberrypi/post-image.sh > index b2bb07067..e4127c9ea 100755 > --- a/board/raspberrypi/post-image.sh > +++ b/board/raspberrypi/post-image.sh > @@ -16,6 +16,29 @@ dtoverlay=pi3-miniuart-bt > __EOF__ > fi > ;; > + --aarch64) > + # Run a 64bits kernel (armv8) > + sed -e '/^kernel=/s,=.*,=Image,' -i "${BINARIES_DIR}/rpi-firmware/config.txt" > + if ! grep -qE '^arm_control=0x200' "${BINARIES_DIR}/rpi-firmware/config.txt"; then > + cat << __EOF__ >> "${BINARIES_DIR}/rpi-firmware/config.txt" > + > +# enable 64bits support > +arm_control=0x200 > +__EOF__ > + fi > + > + # Enable uart console > + if ! grep -qE '^enable_uart=1' "${BINARIES_DIR}/rpi-firmware/config.txt"; then > + cat << __EOF__ >> "${BINARIES_DIR}/rpi-firmware/config.txt" > + > +# enable rpi3 ttyS0 serial console > +enable_uart=1 > +__EOF__ > + fi > + > + # Use 64bits conffile > + GENIMAGE_CFG="${BOARD_DIR}/genimage-${BOARD_NAME}-64.cfg" Isn't it better to just make a new raspberrypi3-64 symlink? > + ;; > esac > > rm -rf "${GENIMAGE_TMP}" > diff --git a/configs/raspberrypi3_64_defconfig b/configs/raspberrypi3_64_defconfig > new file mode 100644 > index 000000000..ddc6842f9 > --- /dev/null > +++ b/configs/raspberrypi3_64_defconfig > @@ -0,0 +1,37 @@ > +BR2_aarch64=y I think an explicit BR2_cortex_a53=y should be added. It's the default because it's the first one in the list, but I don't think it's good to rely on that. BTW, does anyone know why the 32-bit version has cortex_a7? > + > +BR2_GCC_VERSION_6_X=y > +BR2_TOOLCHAIN_BUILDROOT_GLIBC=y > +BR2_TOOLCHAIN_BUILDROOT_CXX=y > + > +BR2_SYSTEM_DHCP="eth0" > + > +# Linux headers same as kernel, a 4.9 series > +BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_9=y > + > +BR2_LINUX_KERNEL=y > +BR2_LINUX_KERNEL_CUSTOM_GIT=y > +BR2_LINUX_KERNEL_CUSTOM_REPO_URL="https://github.com/raspberrypi/linux.git" > +BR2_LINUX_KERNEL_CUSTOM_REPO_VERSION="935c7ce84c982a26f567a03a58a1537424569938" > +BR2_LINUX_KERNEL_DEFCONFIG="bcmrpi3" > + > +# Build the DTB from the kernel sources > +BR2_LINUX_KERNEL_DTS_SUPPORT=y > +BR2_LINUX_KERNEL_INTREE_DTS_NAME="broadcom/bcm2710-rpi-3-b broadcom/bcm2837-rpi-3-b" > + > +BR2_PACKAGE_RPI_FIRMWARE=y > +# BR2_PACKAGE_RPI_FIRMWARE_INSTALL_DTB_OVERLAYS is not set > + > +# Required tools to create the SD image > +BR2_PACKAGE_HOST_DOSFSTOOLS=y > +BR2_PACKAGE_HOST_GENIMAGE=y > +BR2_PACKAGE_HOST_MTOOLS=y > + > +# Filesystem / image > +BR2_TARGET_ROOTFS_EXT2=y > +BR2_TARGET_ROOTFS_EXT2_4=y > +BR2_TARGET_ROOTFS_EXT2_BLOCKS=126976 I'd prefer a little bit more slack, I used 120000 in the defconfigs I just updated. And if that is not enough (or very tight), just jump directly to 250000. Regards, Arnout > +# BR2_TARGET_ROOTFS_TAR is not set > +BR2_ROOTFS_POST_BUILD_SCRIPT="board/raspberrypi3/post-build.sh" > +BR2_ROOTFS_POST_IMAGE_SCRIPT="board/raspberrypi3/post-image.sh" > +BR2_ROOTFS_POST_SCRIPT_ARGS="--aarch64" > -- Arnout Vandecappelle arnout at mind be Senior Embedded Software Architect +32-16-286500 Essensium/Mind http://www.mind.be G.Geenslaan 9, 3001 Leuven, Belgium BE 872 984 063 RPR Leuven LinkedIn profile: http://www.linkedin.com/in/arnoutvandecappelle GPG fingerprint: 7493 020B C7E3 8618 8DEC 222C 82EB F404 F9AC 0DDF ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Buildroot] [PATCH 2/2] configs: add raspberrypi3 64bits defconfig 2017-04-14 22:22 ` Arnout Vandecappelle @ 2017-04-14 23:16 ` Gaël PORTAY 2017-04-14 23:23 ` Gaël PORTAY 2017-04-15 8:26 ` Thomas Petazzoni 2 siblings, 0 replies; 9+ messages in thread From: Gaël PORTAY @ 2017-04-14 23:16 UTC (permalink / raw) To: buildroot Hi Arnout, On Sat, Apr 15, 2017 at 12:22:12AM +0200, Arnout Vandecappelle wrote: > > > On 14-04-17 23:45, Ga?l PORTAY wrote: > [snip] > > diff --git a/board/raspberrypi/post-image.sh b/board/raspberrypi/post-image.sh > > index b2bb07067..e4127c9ea 100755 > > --- a/board/raspberrypi/post-image.sh > > +++ b/board/raspberrypi/post-image.sh > > @@ -16,6 +16,29 @@ dtoverlay=pi3-miniuart-bt > > __EOF__ > > fi > > ;; > > + --aarch64) > > + # Run a 64bits kernel (armv8) > > + sed -e '/^kernel=/s,=.*,=Image,' -i "${BINARIES_DIR}/rpi-firmware/config.txt" > > + if ! grep -qE '^arm_control=0x200' "${BINARIES_DIR}/rpi-firmware/config.txt"; then > > + cat << __EOF__ >> "${BINARIES_DIR}/rpi-firmware/config.txt" > > + > > +# enable 64bits support > > +arm_control=0x200 > > +__EOF__ > > + fi > > + > > + # Enable uart console > > + if ! grep -qE '^enable_uart=1' "${BINARIES_DIR}/rpi-firmware/config.txt"; then > > + cat << __EOF__ >> "${BINARIES_DIR}/rpi-firmware/config.txt" > > + > > +# enable rpi3 ttyS0 serial console > > +enable_uart=1 > > +__EOF__ > > + fi > > + > > + # Use 64bits conffile > > + GENIMAGE_CFG="${BOARD_DIR}/genimage-${BOARD_NAME}-64.cfg" > > Isn't it better to just make a new raspberrypi3-64 symlink? > I am sorry, could you detail a bit more... I did not get it :/ > > + ;; > > esac > > > > rm -rf "${GENIMAGE_TMP}" > > diff --git a/configs/raspberrypi3_64_defconfig b/configs/raspberrypi3_64_defconfig > > new file mode 100644 > > index 000000000..ddc6842f9 > > --- /dev/null > > +++ b/configs/raspberrypi3_64_defconfig > > @@ -0,0 +1,37 @@ > > +BR2_aarch64=y > > I think an explicit BR2_cortex_a53=y should be added. It's the default because > it's the first one in the list, but I don't think it's good to rely on that. > Indeed, it was present in my first draft. I did savedefconfig and cleaned it up, and make it disappeared :( > BTW, does anyone know why the 32-bit version has cortex_a7? > I think I was the magic a copy/paste. I have a patch to update the 32bit version to cortex_a53, but it breaks compilation of qt5base. I am still working on it. I located the bug but I don't know yet how to fix it (properly). To sum-up, setting BR2_cortex_a53 builds an armv8 toolchain that outputs 32bits binaries. Here are the ARM defines. #define __arm__ 1 #define __ARM_32BIT_STATE 1 #define __ARM_ARCH 8 #define __ARM_ARCH_8A__ 1 #define __ARM_ARCH_EXT_IDIV__ 1 #define __ARM_ARCH_ISA_ARM 1 #define __ARM_ARCH_ISA_THUMB 2 #define __ARM_ARCH_PROFILE 65 #define __ARM_EABI__ 1 #define __ARMEL__ 1 #define __ARM_FEATURE_CLZ 1 #define __ARM_FEATURE_CRC32 1 #define __ARM_FEATURE_DSP 1 #define __ARM_FEATURE_IDIV 1 #define __ARM_FEATURE_LDREX 15 #define __ARM_FEATURE_QBIT 1 #define __ARM_FEATURE_SAT 1 #define __ARM_FEATURE_SIMD32 1 #define __ARM_FEATURE_UNALIGNED 1 #define __ARM_PCS 1 #define __ARM_SIZEOF_MINIMAL_ENUM 4 #define __ARM_SIZEOF_WCHAR_T 4 The flag __ARM_FEATURE_CRC32 is now defined and qtbase uses the AArch32/AArch64 CRC instructions to build an hardware accelerated implementation of its crc32 function [1]. tools/qhash.cpp:148:54: error: attribute(target("+crc")) is unknown static uint crc32(const Char *ptr, size_t len, uint h) +crc is an ARMv8 only attribute [2]. __ARM_FEATURE_CRC32 is set for both AArch32 and AArch64 [3]. 6.5.8 CRC32 Extension __ARM_FEATURE_CRC32 is defined to 1 if the CRC32 instructions are supported and the intrinsics defined in 9.7 are available. These instructions include CRC32B, CRC32H etc. This is only available when __ARM_ARCH >= 8 9.7 CRC32 intrinsics CRC32 intrinsics provide direct access to CRC32 instructions CRC32{C}{B, H, W, X} in both ARMv8 AArch32 and AArch64 execution states. These intrinsics are available when __ARM_FEATURE_CRC32 is defined. The quick fix I found is to check for both define __aarch64__ and __ARM_FEATURE_CRC32 instead of checking the single define __ARM_FEATURE_CRC32. #if defined(__aarch64__) && defined(__ARM_FEATURE_CRC32) If anyone knows on which flag I can rely on... I can open a dedicated thread about this bug. > > + > > +BR2_GCC_VERSION_6_X=y > > +BR2_TOOLCHAIN_BUILDROOT_GLIBC=y > > +BR2_TOOLCHAIN_BUILDROOT_CXX=y > > + > > +BR2_SYSTEM_DHCP="eth0" > > + > > +# Linux headers same as kernel, a 4.9 series > > +BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_9=y > > + > > +BR2_LINUX_KERNEL=y > > +BR2_LINUX_KERNEL_CUSTOM_GIT=y > > +BR2_LINUX_KERNEL_CUSTOM_REPO_URL="https://github.com/raspberrypi/linux.git" > > +BR2_LINUX_KERNEL_CUSTOM_REPO_VERSION="935c7ce84c982a26f567a03a58a1537424569938" > > +BR2_LINUX_KERNEL_DEFCONFIG="bcmrpi3" > > + > > +# Build the DTB from the kernel sources > > +BR2_LINUX_KERNEL_DTS_SUPPORT=y > > +BR2_LINUX_KERNEL_INTREE_DTS_NAME="broadcom/bcm2710-rpi-3-b broadcom/bcm2837-rpi-3-b" > > + > > +BR2_PACKAGE_RPI_FIRMWARE=y > > +# BR2_PACKAGE_RPI_FIRMWARE_INSTALL_DTB_OVERLAYS is not set > > + > > +# Required tools to create the SD image > > +BR2_PACKAGE_HOST_DOSFSTOOLS=y > > +BR2_PACKAGE_HOST_GENIMAGE=y > > +BR2_PACKAGE_HOST_MTOOLS=y > > + > > +# Filesystem / image > > +BR2_TARGET_ROOTFS_EXT2=y > > +BR2_TARGET_ROOTFS_EXT2_4=y > > +BR2_TARGET_ROOTFS_EXT2_BLOCKS=126976 > > I'd prefer a little bit more slack, I used 120000 in the defconfigs I just > updated. And if that is not enough (or very tight), just jump directly to 250000. > Okay. > Regards, > Arnout > > > +# BR2_TARGET_ROOTFS_TAR is not set > > +BR2_ROOTFS_POST_BUILD_SCRIPT="board/raspberrypi3/post-build.sh" > > +BR2_ROOTFS_POST_IMAGE_SCRIPT="board/raspberrypi3/post-image.sh" > > +BR2_ROOTFS_POST_SCRIPT_ARGS="--aarch64" > > > > -- > Arnout Vandecappelle arnout at mind be > Senior Embedded Software Architect +32-16-286500 > Essensium/Mind http://www.mind.be > G.Geenslaan 9, 3001 Leuven, Belgium BE 872 984 063 RPR Leuven > LinkedIn profile: http://www.linkedin.com/in/arnoutvandecappelle > GPG fingerprint: 7493 020B C7E3 8618 8DEC 222C 82EB F404 F9AC 0DDF Regards, Ga?l [1] https://github.com/qt/qtbase/blob/5.8/src/corelib/tools/qhash.cpp#L140 [2] https://gcc.gnu.org/onlinedocs/gcc/AArch64-Options.html#g_t-march-and--mcpu-Feature-Modifiers [3] http://infocenter.arm.com/help/topic/com.arm.doc.ihi0053c/IHI0053C_acle_2_0.pdf ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Buildroot] [PATCH 2/2] configs: add raspberrypi3 64bits defconfig 2017-04-14 22:22 ` Arnout Vandecappelle 2017-04-14 23:16 ` Gaël PORTAY @ 2017-04-14 23:23 ` Gaël PORTAY 2017-04-15 8:26 ` Thomas Petazzoni 2 siblings, 0 replies; 9+ messages in thread From: Gaël PORTAY @ 2017-04-14 23:23 UTC (permalink / raw) To: buildroot Arnout, On Sat, Apr 15, 2017 at 12:22:12AM +0200, Arnout Vandecappelle wrote: > > On 14-04-17 23:45, Ga?l PORTAY wrote: > [snip] > > diff --git a/board/raspberrypi/post-image.sh b/board/raspberrypi/post-image.sh > > index b2bb07067..e4127c9ea 100755 > > --- a/board/raspberrypi/post-image.sh > > +++ b/board/raspberrypi/post-image.sh > > @@ -16,6 +16,29 @@ dtoverlay=pi3-miniuart-bt > > __EOF__ > > fi > > ;; > > + --aarch64) > > + # Run a 64bits kernel (armv8) > > + sed -e '/^kernel=/s,=.*,=Image,' -i "${BINARIES_DIR}/rpi-firmware/config.txt" > > + if ! grep -qE '^arm_control=0x200' "${BINARIES_DIR}/rpi-firmware/config.txt"; then > > + cat << __EOF__ >> "${BINARIES_DIR}/rpi-firmware/config.txt" > > + > > +# enable 64bits support > > +arm_control=0x200 > > +__EOF__ > > + fi > > + > > + # Enable uart console > > + if ! grep -qE '^enable_uart=1' "${BINARIES_DIR}/rpi-firmware/config.txt"; then > > + cat << __EOF__ >> "${BINARIES_DIR}/rpi-firmware/config.txt" > > + > > +# enable rpi3 ttyS0 serial console > > +enable_uart=1 > > +__EOF__ > > + fi > > + > > + # Use 64bits conffile > > + GENIMAGE_CFG="${BOARD_DIR}/genimage-${BOARD_NAME}-64.cfg" > > Isn't it better to just make a new raspberrypi3-64 symlink? > Indeed, the symlink make sense. > > + ;; > > esac > > > > rm -rf "${GENIMAGE_TMP}" Regards, Ga?l ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Buildroot] [PATCH 2/2] configs: add raspberrypi3 64bits defconfig 2017-04-14 22:22 ` Arnout Vandecappelle 2017-04-14 23:16 ` Gaël PORTAY 2017-04-14 23:23 ` Gaël PORTAY @ 2017-04-15 8:26 ` Thomas Petazzoni 2 siblings, 0 replies; 9+ messages in thread From: Thomas Petazzoni @ 2017-04-15 8:26 UTC (permalink / raw) To: buildroot Hello, On Sat, 15 Apr 2017 00:22:12 +0200, Arnout Vandecappelle wrote: > BTW, does anyone know why the 32-bit version has cortex_a7? I think because back when the rpi3 defconfig was added, there was no selection of AArch64 cores. Best regards, Thomas -- Thomas Petazzoni, CTO, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com ^ permalink raw reply [flat|nested] 9+ messages in thread
end of thread, other threads:[~2017-04-15 11:43 UTC | newest] Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2017-04-14 21:45 [Buildroot] [PATCH 0/2] Add support for rpi3 64bits target Gaël PORTAY 2017-04-14 21:45 ` [Buildroot] [PATCH 1/2] rpi-firmware: allow to build for aarch64 targets Gaël PORTAY 2017-04-15 8:27 ` Thomas Petazzoni 2017-04-15 11:43 ` Gaël PORTAY 2017-04-14 21:45 ` [Buildroot] [PATCH 2/2] configs: add raspberrypi3 64bits defconfig Gaël PORTAY 2017-04-14 22:22 ` Arnout Vandecappelle 2017-04-14 23:16 ` Gaël PORTAY 2017-04-14 23:23 ` Gaël PORTAY 2017-04-15 8:26 ` Thomas Petazzoni
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