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ARM: add Raspberry Pi 3 64-bit config On all Pis so far, the VC FW provides a short stub to set up the ARM CPU before entering the kernel (a/k/a U-Boot for us). This feature is not currently supported by the VC FW when booting in 64-bit mode. However, this feature will likely appear in the near future, and this U-Boot port assumes that such a feature is in place. Without that feature, or a temporary workaround described below, U-Boot will not boot. Once the VC FW does provide the ARM stub, u-boot.bin built for rpi_3 can be used drectly as kernel7.img, in the same way as any other RPi port. The following config.txt is required: # Fix mini UART input frequency, and setup/enable up the UART. # Without this option, U-Boot will not boot, even if you don't care # about the serial console. This option will always be required for # all RPi3 use-cases, unless the PL011 UART is used, which is not # yet supported by rpi_3* builds of U-Boot. enable_uart=1 # Boot in AArch64 (64-bit) mode. # It is possible that a future VC FW will remove the need for this # option, instead auto-setting 32-/64-bit mode based on the "kernel" # filename present on the SD card. arm_control=0x200 Prior to the VC FW providing the ARM boot stub, you can use the following steps to build an equivalent stub into the U-Boot binary: git clone https://github.com/swarren/rpi-3-aarch64-demo.git \ ../rpi-3-aarch64-demo (cd ../rpi-3-aarch64-demo && ./build.sh) Build U-Boot for rpi_3 in the usual way cat ../rpi-3-aarch64-demo/armstub64.bin u-boot.bin > u-boot.bin.stubbed Use u-boot.bin.stubbed as kernel7.img on the Pi SD card. In this case, the following additional entries are required in config.txt: # Tell the FW to load the kernel image at address 0, the reset vector. kernel_old=1 Signed-off-by: Stephen Warren <swarren@wwwdotorg.org> Reviewed-by: Tom Rini <trini@konsulko.com>
2016-04-02 03:14:15 +00:00
CONFIG_ARM=y
Convert CONFIG_ARCH_CPU_INIT to Kconfig This converts the following to Kconfig: CONFIG_ARCH_CPU_INIT Signed-off-by: Adam Ford <aford173@gmail.com> Acked-by: Chris Packham <chris.packham@alliedtelesis.co.nz> Tested-by: Felix Brack <fb@ltec.ch>
2019-08-14 13:29:25 +00:00
CONFIG_ARCH_CPU_INIT=y
ARM: add Raspberry Pi 3 64-bit config On all Pis so far, the VC FW provides a short stub to set up the ARM CPU before entering the kernel (a/k/a U-Boot for us). This feature is not currently supported by the VC FW when booting in 64-bit mode. However, this feature will likely appear in the near future, and this U-Boot port assumes that such a feature is in place. Without that feature, or a temporary workaround described below, U-Boot will not boot. Once the VC FW does provide the ARM stub, u-boot.bin built for rpi_3 can be used drectly as kernel7.img, in the same way as any other RPi port. The following config.txt is required: # Fix mini UART input frequency, and setup/enable up the UART. # Without this option, U-Boot will not boot, even if you don't care # about the serial console. This option will always be required for # all RPi3 use-cases, unless the PL011 UART is used, which is not # yet supported by rpi_3* builds of U-Boot. enable_uart=1 # Boot in AArch64 (64-bit) mode. # It is possible that a future VC FW will remove the need for this # option, instead auto-setting 32-/64-bit mode based on the "kernel" # filename present on the SD card. arm_control=0x200 Prior to the VC FW providing the ARM boot stub, you can use the following steps to build an equivalent stub into the U-Boot binary: git clone https://github.com/swarren/rpi-3-aarch64-demo.git \ ../rpi-3-aarch64-demo (cd ../rpi-3-aarch64-demo && ./build.sh) Build U-Boot for rpi_3 in the usual way cat ../rpi-3-aarch64-demo/armstub64.bin u-boot.bin > u-boot.bin.stubbed Use u-boot.bin.stubbed as kernel7.img on the Pi SD card. In this case, the following additional entries are required in config.txt: # Tell the FW to load the kernel image at address 0, the reset vector. kernel_old=1 Signed-off-by: Stephen Warren <swarren@wwwdotorg.org> Reviewed-by: Tom Rini <trini@konsulko.com>
2016-04-02 03:14:15 +00:00
CONFIG_ARCH_BCM283X=y
configs: Migrate CONFIG_SYS_TEXT_BASE On the NIOS2 and Xtensa architectures, we do not have CONFIG_SYS_TEXT_BASE set. This is a strict migration of the current values into the defconfig and removing them from the headers. I did not attempt to add more default values in and for now will leave that to maintainers. Signed-off-by: Tom Rini <trini@konsulko.com>
2018-02-03 17:10:38 +00:00
CONFIG_SYS_TEXT_BASE=0x00080000
ARM: add Raspberry Pi 3 64-bit config On all Pis so far, the VC FW provides a short stub to set up the ARM CPU before entering the kernel (a/k/a U-Boot for us). This feature is not currently supported by the VC FW when booting in 64-bit mode. However, this feature will likely appear in the near future, and this U-Boot port assumes that such a feature is in place. Without that feature, or a temporary workaround described below, U-Boot will not boot. Once the VC FW does provide the ARM stub, u-boot.bin built for rpi_3 can be used drectly as kernel7.img, in the same way as any other RPi port. The following config.txt is required: # Fix mini UART input frequency, and setup/enable up the UART. # Without this option, U-Boot will not boot, even if you don't care # about the serial console. This option will always be required for # all RPi3 use-cases, unless the PL011 UART is used, which is not # yet supported by rpi_3* builds of U-Boot. enable_uart=1 # Boot in AArch64 (64-bit) mode. # It is possible that a future VC FW will remove the need for this # option, instead auto-setting 32-/64-bit mode based on the "kernel" # filename present on the SD card. arm_control=0x200 Prior to the VC FW providing the ARM boot stub, you can use the following steps to build an equivalent stub into the U-Boot binary: git clone https://github.com/swarren/rpi-3-aarch64-demo.git \ ../rpi-3-aarch64-demo (cd ../rpi-3-aarch64-demo && ./build.sh) Build U-Boot for rpi_3 in the usual way cat ../rpi-3-aarch64-demo/armstub64.bin u-boot.bin > u-boot.bin.stubbed Use u-boot.bin.stubbed as kernel7.img on the Pi SD card. In this case, the following additional entries are required in config.txt: # Tell the FW to load the kernel image at address 0, the reset vector. kernel_old=1 Signed-off-by: Stephen Warren <swarren@wwwdotorg.org> Reviewed-by: Tom Rini <trini@konsulko.com>
2016-04-02 03:14:15 +00:00
CONFIG_TARGET_RPI_3=y
configs: Resync with savedefconfig Signed-off-by: Tom Rini <trini@konsulko.com>
2016-09-08 20:11:59 +00:00
CONFIG_SYS_MALLOC_F_LEN=0x2000
configs: Migrate CONFIG_NR_DRAM_BANKS We have the following cases: - CONFIG_NR_DRAM_BANKS was defined, migrate normally - CONFIG_NR_DRAM_BANKS_MAX was defined and then used for CONFIG_NR_DRAM_BANKS after a check, just migrate it over now. - CONFIG_NR_DRAM_BANKS was very oddly defined on p2771-0000-* (to 1024 + 2), set this to 8. Signed-off-by: Tom Rini <trini@konsulko.com>
2018-08-16 12:16:24 +00:00
CONFIG_NR_DRAM_BANKS=1
configs: Resync with savedefconfig Rsync all defconfig files using moveconfig.py Signed-off-by: Tom Rini <trini@konsulko.com>
2020-08-10 19:31:07 +00:00
CONFIG_ENV_SIZE=0x4000
configs: Resync with savedefconfig Rsync all defconfig files using moveconfig.py Signed-off-by: Tom Rini <trini@konsulko.com>
2020-07-28 12:46:52 +00:00
CONFIG_DEFAULT_DEVICE_TREE="bcm2837-rpi-3-b"
configs: Resync with savedefconfig Rsync all defconfig files using moveconfig.py Signed-off-by: Tom Rini <trini@konsulko.com>
2019-04-29 19:54:04 +00:00
CONFIG_DISTRO_DEFAULTS=y
ARM: add Raspberry Pi 3 64-bit config On all Pis so far, the VC FW provides a short stub to set up the ARM CPU before entering the kernel (a/k/a U-Boot for us). This feature is not currently supported by the VC FW when booting in 64-bit mode. However, this feature will likely appear in the near future, and this U-Boot port assumes that such a feature is in place. Without that feature, or a temporary workaround described below, U-Boot will not boot. Once the VC FW does provide the ARM stub, u-boot.bin built for rpi_3 can be used drectly as kernel7.img, in the same way as any other RPi port. The following config.txt is required: # Fix mini UART input frequency, and setup/enable up the UART. # Without this option, U-Boot will not boot, even if you don't care # about the serial console. This option will always be required for # all RPi3 use-cases, unless the PL011 UART is used, which is not # yet supported by rpi_3* builds of U-Boot. enable_uart=1 # Boot in AArch64 (64-bit) mode. # It is possible that a future VC FW will remove the need for this # option, instead auto-setting 32-/64-bit mode based on the "kernel" # filename present on the SD card. arm_control=0x200 Prior to the VC FW providing the ARM boot stub, you can use the following steps to build an equivalent stub into the U-Boot binary: git clone https://github.com/swarren/rpi-3-aarch64-demo.git \ ../rpi-3-aarch64-demo (cd ../rpi-3-aarch64-demo && ./build.sh) Build U-Boot for rpi_3 in the usual way cat ../rpi-3-aarch64-demo/armstub64.bin u-boot.bin > u-boot.bin.stubbed Use u-boot.bin.stubbed as kernel7.img on the Pi SD card. In this case, the following additional entries are required in config.txt: # Tell the FW to load the kernel image at address 0, the reset vector. kernel_old=1 Signed-off-by: Stephen Warren <swarren@wwwdotorg.org> Reviewed-by: Tom Rini <trini@konsulko.com>
2016-04-02 03:14:15 +00:00
CONFIG_OF_BOARD_SETUP=y
Convert CONFIG_USE_PREBOOT and CONFIG_PREBOOT to Kconfig This converts the following to Kconfig: CONFIG_USE_PREBOOT CONFIG_PREBOOT Both are together in one commit, since otherwise the former causes kconfig to define the latter, which gives duplicate symbol errors. Includes a manual fixup for CONFIG_PREBOOT in ids8313_defconfig since the backslash lands in the wrong place. Similarly with socfpga_vining_fpga. Signed-off-by: Simon Glass <sjg@chromium.org>
2019-07-21 02:51:14 +00:00
CONFIG_USE_PREBOOT=y
common/Kconfig: Add DISPLAY_CPUINFO Create a Kconfig entry for DISPLAY_CPUINFO and make it be the default in certain architectures. Migrate all config files. Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: Tom Rini <trini@konsulko.com>
2016-10-08 18:41:44 +00:00
# CONFIG_DISPLAY_CPUINFO is not set
common: Add DISPLAY_BOARDINFO Create a Kconfig entry for DISPLAY_BOARDINFO and make it be the default in certain architectures. Migrate all config files. Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: Tom Rini <trini@konsulko.com>
2016-10-12 01:33:46 +00:00
# CONFIG_DISPLAY_BOARDINFO is not set
configs: Resync with savedefconfig Rsync all defconfig files using moveconfig.py Signed-off-by: Tom Rini <trini@konsulko.com>
2020-10-09 16:22:06 +00:00
CONFIG_MISC_INIT_R=y
ARM: add Raspberry Pi 3 64-bit config On all Pis so far, the VC FW provides a short stub to set up the ARM CPU before entering the kernel (a/k/a U-Boot for us). This feature is not currently supported by the VC FW when booting in 64-bit mode. However, this feature will likely appear in the near future, and this U-Boot port assumes that such a feature is in place. Without that feature, or a temporary workaround described below, U-Boot will not boot. Once the VC FW does provide the ARM stub, u-boot.bin built for rpi_3 can be used drectly as kernel7.img, in the same way as any other RPi port. The following config.txt is required: # Fix mini UART input frequency, and setup/enable up the UART. # Without this option, U-Boot will not boot, even if you don't care # about the serial console. This option will always be required for # all RPi3 use-cases, unless the PL011 UART is used, which is not # yet supported by rpi_3* builds of U-Boot. enable_uart=1 # Boot in AArch64 (64-bit) mode. # It is possible that a future VC FW will remove the need for this # option, instead auto-setting 32-/64-bit mode based on the "kernel" # filename present on the SD card. arm_control=0x200 Prior to the VC FW providing the ARM boot stub, you can use the following steps to build an equivalent stub into the U-Boot binary: git clone https://github.com/swarren/rpi-3-aarch64-demo.git \ ../rpi-3-aarch64-demo (cd ../rpi-3-aarch64-demo && ./build.sh) Build U-Boot for rpi_3 in the usual way cat ../rpi-3-aarch64-demo/armstub64.bin u-boot.bin > u-boot.bin.stubbed Use u-boot.bin.stubbed as kernel7.img on the Pi SD card. In this case, the following additional entries are required in config.txt: # Tell the FW to load the kernel image at address 0, the reset vector. kernel_old=1 Signed-off-by: Stephen Warren <swarren@wwwdotorg.org> Reviewed-by: Tom Rini <trini@konsulko.com>
2016-04-02 03:14:15 +00:00
CONFIG_SYS_PROMPT="U-Boot> "
CONFIG_CMD_GPIO=y
configs: Resync with savedefconfig Rsync all defconfig files using moveconfig.py Signed-off-by: Tom Rini <trini@konsulko.com>
2017-08-14 23:58:53 +00:00
CONFIG_CMD_MMC=y
CONFIG_CMD_USB=y
ARM: rpi_*_defconfig: Add support to find UUID for filesystem The most generic way of having a stable boot behavior is to rely on UUID instead of device names for root partition, so the order of probing does not cause issues with booting. This enables the `CMD_FS_UUID` for following defconfig files: - rpi_0_w_defconfig - rpi_2_defconfig - rpi_3_32b_defconfig - rpi_3_defconfig - rpi_defconfig Signed-off-by: Otavio Salvador <otavio@ossystems.com.br> Signed-off-by: Fabio Berton <fabio.berton@ossystems.com.br> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-10-23 13:35:52 +00:00
CONFIG_CMD_FS_UUID=y
configs: Resync with savedefconfig Rsync all defconfig files using moveconfig.py Signed-off-by: Tom Rini <trini@konsulko.com>
2017-09-08 14:14:49 +00:00
CONFIG_OF_EMBED=y
configs: Resync with savedefconfig Rsync all defconfig files using moveconfig.py Signed-off-by: Tom Rini <trini@konsulko.com>
2017-08-28 11:16:32 +00:00
CONFIG_ENV_FAT_DEVICE_AND_PART="0:1"
env: Add CONFIG_SYS_RELOC_GD_ENV_ADDR symbol Today in initr_reloc_global_data() we use some non-obvious tests to determine if we need to relocate the env_addr within gd or not. In order to facilitate migration of other symbols to Kconfig we need to introduce a new symbol for this particular use case. Cc: Wolfgang Denk <wd@denx.de> Cc: Joe Hershberger <joe.hershberger@ni.com> Signed-off-by: Tom Rini <trini@konsulko.com>
2019-11-13 03:46:36 +00:00
CONFIG_SYS_RELOC_GD_ENV_ADDR=y
Migrate CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG to Kconfig Convert CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG to Kconfig Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com> Reviewed-by: Lukasz Majewski <lukma@denx.de> Reviewed-by: Petr Vorel <petr.vorel@gmail.com> Reviewed-by: Petr Vorel <petr.vorel at gmail.com>
2018-04-01 16:37:53 +00:00
CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y
dm: mmc: rpi: Convert Raspberry Pi to driver model for MMC Convert the bcm2835 SDHCI driver over to support CONFIG_DM_MMC and move all boards over. There is no need to keep the old code since there are no other users. Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Simon Glass <sjg@chromium.org>
2017-04-05 22:23:38 +00:00
CONFIG_DM_MMC=y
mmc: move CONFIG_SDHCI to Kconfig, renaming to CONFIG_MMC_SDHCI Move CONFIG_SDHCI to Kconfig and rename it to CONFIG_MMC_SDHCI. My motivation for the rename is, ultimately, to make all the MMC options prefixed with MMC_ and SDHCI options with MMC_SDHCI_, like Linux. This commit was created as follows: [1] Rename the config option with the following command: find . -name .git -prune -o ! -path ./scripts/config_whitelist.txt \ -type f -print | xargs sed -i -e 's/CONFIG_SDHCI/CONFIG_MMC_SDHCI/g' [2] create the entry for MMC_SDHCI in drivers/mmc/Kconfig [3] run "tools/moveconfig.py -y MMC_SDHCI" [4] add "depends on MMC_SDHCI" to existing SDHCI driver entries Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
2016-12-07 13:10:28 +00:00
CONFIG_MMC_SDHCI=y
mmc: move some SDHCI related options to Kconfig While I moved the options, I also renamed them so that they are all prefixed with MMC_SDHCI_. This commit was created in the following steps. [1] Rename with the following command find . -name .git -prune -o ! -path ./scripts/config_whitelist.txt \ -type f -print | xargs sed -i -e ' s/CONFIG_MMC_SDMA/CONFIG_MMC_SDHCI_SDMA/g s/CONFIG_BCM2835_SDHCI/CONFIG_MMC_SDHCI_BCM2835/g s/CONFIG_KONA_SDHCI/CONFIG_MMC_SDHCI_KONA/g s/CONFIG_MV_SDHCI/CONFIG_MMC_SDHCI_MV/g s/CONFIG_S5P_SDHCI/CONFIG_MMC_SDHCI_S5P/g s/CONFIG_SPEAR_SDHCI/CONFIG_MMC_SDHCI_SPEAR/g ' [2] create the Kconfig entries in drivers/mmc/Kconfig [3] Move the options by the following command tools/moveconfig.py -y MMC_SDHCI_SDMA MMC_SDHCI_BCM2835 \ MMC_SDHCI_KONA MMC_SDHCI_MV MMC_SDHCI_S5P MMC_SDHCI_SPEAR [4] Sort drivers/mmc/Makefile for readability Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
2016-12-07 13:10:29 +00:00
CONFIG_MMC_SDHCI_BCM2835=y
configs: Resync with savedefconfig Rsync all defconfig files using moveconfig.py Signed-off-by: Tom Rini <trini@konsulko.com>
2018-04-08 00:27:54 +00:00
CONFIG_PHYLIB=y
dm: arm: rpi: Use driver model for Ethernet Enable CONFIG_DM_ETH so that driver model is used for the USB Ethernet device. Signed-off-by: Simon Glass <sjg@chromium.org>
2017-04-05 22:23:35 +00:00
CONFIG_DM_ETH=y
configs: Resync with savedefconfig Rsync all defconfig files using moveconfig.py Signed-off-by: Tom Rini <trini@konsulko.com>
2018-02-11 01:27:45 +00:00
CONFIG_PINCTRL=y
# CONFIG_PINCTRL_GENERIC is not set
configs: Resync with savedefconfig Signed-off-by: Tom Rini <trini@konsulko.com>
2016-09-08 20:11:59 +00:00
# CONFIG_REQUIRE_SERIAL_CONSOLE is not set
configs: Migrate CONFIG_USB_STORAGE In some cases we were missing CONFIG_USB=y so enable that when needed. Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Tom Rini <trini@konsulko.com>
2016-09-08 20:31:26 +00:00
CONFIG_USB=y
dm: arm: rpi: Move to driver model for USB Start using driver model for USB on the Raspberry Pi. The dwc2 supports this now so this is just a config change. Signed-off-by: Simon Glass <sjg@chromium.org>
2017-04-05 22:23:34 +00:00
CONFIG_DM_USB=y
usb: Kconfig: migrate USB_DWC2 to Kconfig This change migrates the USB_DWC2 configuration item to Kconfig and runs moveconfig to adjust header files and defconfig. Signed-off-by: Meng Dongyang <daniel.meng@rock-chips.com> Split off into a separate patch: Ran moveconfig to migrate other boards: Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-07-03 16:30:06 +00:00
CONFIG_USB_DWC2=y
Convert CONFIG_USB_KEYBOARD to Kconfig This converts the following to Kconfig: CONFIG_USB_KEYBOARD Signed-off-by: Simon Glass <sjg@chromium.org> [trini: Fixup MPC86* configs] Signed-off-by: Tom Rini <trini@konsulko.com>
2016-10-18 02:13:01 +00:00
CONFIG_USB_KEYBOARD=y
usb: net: migrate CONFIG_USB_HOST_ETHER to Kconfig CONFIG_USB_HOST_ETHER is the framework that the drivers are dependent on USB_HOST_ETHER. Use this as a menu and move the existing LAN75XX and LAN78XX options under new menu. Finally update the defconfigs that need CONFIG_USB_HOST_ETHER. Signed-off-by: Chris Packham <judge.packham@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2017-08-28 08:50:45 +00:00
CONFIG_USB_HOST_ETHER=y
configs: Resync with savedefconfig Rsync all defconfig files using moveconfig.py Signed-off-by: Tom Rini <trini@konsulko.com>
2018-04-08 00:27:54 +00:00
CONFIG_USB_ETHER_LAN78XX=y
usb: net: migrate USB Ethernet adapters to Kconfig This migrates ASIX, ASIX88179, MCS7830, RTL8152 and SMSC95XX to Kconfig. Update defconfigs. Signed-off-by: Chris Packham <judge.packham@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2017-08-28 08:50:46 +00:00
CONFIG_USB_ETHER_SMSC95XX=y
dm: video: arm: rpi: Convert to use driver model for video Adjust the video driver to work with driver model and move over existing baords. There is no need to keep the old code. We can also drop setting of CONFIG_FB_ADDR since driver model doesn't have this problem. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Anatolij Gustschin <agust@denx.de>
2017-04-05 22:23:44 +00:00
CONFIG_DM_VIDEO=y
video: enable VIDEO_ANSI and all VIDEO_BBP options This partially reverts changes by commit 2cc393f32fd9 ("video: make BPP and ANSI configs optional") since it caused issues with other boards (missing LCD console output on pinebook, x86 platform or sandbox). Enable all disabled options again and opt out of not supported color depth in board defconfigs. Signed-off-by: Anatolij Gustschin <agust@denx.de> Reported-by: Vagrant Cascadian <vagrant@debian.org>
2020-02-04 21:43:06 +00:00
# CONFIG_VIDEO_BPP8 is not set
# CONFIG_VIDEO_BPP16 is not set
Convert CONFIG_SYS_WHITE_ON_BLACK to Kconfig This converts the following to Kconfig: CONFIG_SYS_WHITE_ON_BLACK Signed-off-by: Simon Glass <sjg@chromium.org> [trini: Make this default y on various SoCs] Signed-off-by: Tom Rini <trini@konsulko.com>
2017-04-27 04:27:57 +00:00
CONFIG_SYS_WHITE_ON_BLACK=y
Enable DISTRO_DEFAULT on platforms that missed it before A number of platforms had been using the distro default feature before it was moved to Kconfig but did not enable the new Kconfig option when it was enabled. This caused a regression in terms of features and this introduces breakage when more things move to Kconfig. Signed-off-by: Tom Rini <trini@konsulko.com>
2016-11-29 14:14:57 +00:00
CONFIG_CONSOLE_SCROLL_LINES=10
ARM: add Raspberry Pi 3 64-bit config On all Pis so far, the VC FW provides a short stub to set up the ARM CPU before entering the kernel (a/k/a U-Boot for us). This feature is not currently supported by the VC FW when booting in 64-bit mode. However, this feature will likely appear in the near future, and this U-Boot port assumes that such a feature is in place. Without that feature, or a temporary workaround described below, U-Boot will not boot. Once the VC FW does provide the ARM stub, u-boot.bin built for rpi_3 can be used drectly as kernel7.img, in the same way as any other RPi port. The following config.txt is required: # Fix mini UART input frequency, and setup/enable up the UART. # Without this option, U-Boot will not boot, even if you don't care # about the serial console. This option will always be required for # all RPi3 use-cases, unless the PL011 UART is used, which is not # yet supported by rpi_3* builds of U-Boot. enable_uart=1 # Boot in AArch64 (64-bit) mode. # It is possible that a future VC FW will remove the need for this # option, instead auto-setting 32-/64-bit mode based on the "kernel" # filename present on the SD card. arm_control=0x200 Prior to the VC FW providing the ARM boot stub, you can use the following steps to build an equivalent stub into the U-Boot binary: git clone https://github.com/swarren/rpi-3-aarch64-demo.git \ ../rpi-3-aarch64-demo (cd ../rpi-3-aarch64-demo && ./build.sh) Build U-Boot for rpi_3 in the usual way cat ../rpi-3-aarch64-demo/armstub64.bin u-boot.bin > u-boot.bin.stubbed Use u-boot.bin.stubbed as kernel7.img on the Pi SD card. In this case, the following additional entries are required in config.txt: # Tell the FW to load the kernel image at address 0, the reset vector. kernel_old=1 Signed-off-by: Stephen Warren <swarren@wwwdotorg.org> Reviewed-by: Tom Rini <trini@konsulko.com>
2016-04-02 03:14:15 +00:00
CONFIG_PHYS_TO_BUS=y
Raspberry Pi: add device tree overlay support Raspberry Pi has numerous HAT and other HW expansion options such as screens and cameras some of which need overlays from the beginning so it makes sense to enable evice tree overlays. Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
2017-06-26 13:25:03 +00:00
CONFIG_OF_LIBFDT_OVERLAY=y
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