Now that am335x_evm boots OK on the Beaglebone black, drop the latter and update the docs to cover the change.
Also add a few updates about 'make fit' and drop the note about the security review, as U-Boot's verified boot has had quite extensive review now.
Signed-off-by: Simon Glass sjg@chromium.org ---
Changes in v2: - Drop patch "regulator: rk8xx: Fix incorrect parameter" - Rewrite boneblack patch to onstead drop the target and update docs
board/ti/am335x/MAINTAINERS | 1 - configs/am335x_boneblack_vboot_defconfig | 94 ------------------------ configs/am335x_evm_defconfig | 3 +- doc/usage/fit/beaglebone_vboot.rst | 21 +++--- 4 files changed, 12 insertions(+), 107 deletions(-) delete mode 100644 configs/am335x_boneblack_vboot_defconfig
diff --git a/board/ti/am335x/MAINTAINERS b/board/ti/am335x/MAINTAINERS index 219c8715bf1..ed8800a2663 100644 --- a/board/ti/am335x/MAINTAINERS +++ b/board/ti/am335x/MAINTAINERS @@ -3,6 +3,5 @@ M: Tom Rini trini@konsulko.com S: Maintained F: board/ti/am335x/ F: include/configs/am335x_evm.h -F: configs/am335x_boneblack_vboot_defconfig F: configs/am335x_evm_defconfig F: configs/am335x_evm_spiboot_defconfig diff --git a/configs/am335x_boneblack_vboot_defconfig b/configs/am335x_boneblack_vboot_defconfig deleted file mode 100644 index d473a1a793b..00000000000 --- a/configs/am335x_boneblack_vboot_defconfig +++ /dev/null @@ -1,94 +0,0 @@ -CONFIG_ARM=y -CONFIG_ARCH_CPU_INIT=y -# CONFIG_SPL_USE_ARCH_MEMCPY is not set -# CONFIG_SPL_USE_ARCH_MEMSET is not set -CONFIG_ARCH_OMAP2PLUS=y -CONFIG_TI_COMMON_CMD_OPTIONS=y -CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y -CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0x4030ff00 -CONFIG_SF_DEFAULT_SPEED=24000000 -CONFIG_DEFAULT_DEVICE_TREE="am335x-boneblack" -CONFIG_AM33XX=y -CONFIG_CLOCK_SYNTHESIZER=y -CONFIG_SPL=y -CONFIG_ENV_OFFSET_REDUND=0x280000 -CONFIG_TIMESTAMP=y -CONFIG_FIT_SIGNATURE=y -CONFIG_FIT_VERBOSE=y -CONFIG_SYS_BOOTM_LEN=0x1000000 -CONFIG_DISTRO_DEFAULTS=y -CONFIG_AUTOBOOT_KEYED=y -CONFIG_AUTOBOOT_PROMPT="Press SPACE to abort autoboot in %d seconds\n" -CONFIG_AUTOBOOT_DELAY_STR="d" -CONFIG_AUTOBOOT_STOP_STR=" " -CONFIG_BOOTCOMMAND="run findfdt; run init_console; run finduuid; run distro_bootcmd" -CONFIG_SYS_CONSOLE_INFO_QUIET=y -CONFIG_ARCH_MISC_INIT=y -CONFIG_SPL_SYS_MALLOC=y -CONFIG_SPL_SYS_MALLOC_SIZE=0x800000 -CONFIG_SPL_MUSB_NEW=y -# CONFIG_SPL_NAND_SUPPORT is not set -CONFIG_SPL_NET=y -CONFIG_SPL_NET_VCI_STRING="AM33xx U-Boot SPL" -CONFIG_SPL_OS_BOOT=y -CONFIG_SPL_FALCON_BOOT_MMCSD=y -CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR=0x1700 -CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR=0x1500 -CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS=0x200 -CONFIG_CMD_SPL=y -CONFIG_SYS_I2C_EEPROM_ADDR_LEN=2 -# CONFIG_CMD_SETEXPR is not set -CONFIG_BOOTP_DNS2=y -CONFIG_OF_CONTROL=y -CONFIG_SPL_OF_CONTROL=y -CONFIG_ENV_OVERWRITE=y -CONFIG_ENV_IS_IN_MMC=y -CONFIG_SYS_REDUNDAND_ENVIRONMENT=y -CONFIG_SYS_RELOC_GD_ENV_ADDR=y -CONFIG_SYS_MMC_ENV_DEV=1 -CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y -CONFIG_VERSION_VARIABLE=y -CONFIG_NET_RETRY_COUNT=10 -CONFIG_BOOTP_SEND_HOSTNAME=y -# CONFIG_SPL_BLK is not set -CONFIG_BOOTCOUNT_LIMIT=y -CONFIG_SYS_BOOTCOUNT_BE=y -CONFIG_DFU_MMC=y -CONFIG_DFU_RAM=y -CONFIG_USB_FUNCTION_FASTBOOT=y -CONFIG_DM_I2C=y -CONFIG_MISC=y -CONFIG_SYS_I2C_EEPROM_ADDR=0x50 -# CONFIG_SPL_DM_MMC is not set -CONFIG_MMC_OMAP_HS=y -CONFIG_MTD=y -CONFIG_DM_SPI_FLASH=y -CONFIG_SPI_FLASH_WINBOND=y -CONFIG_PHY_ATHEROS=y -CONFIG_PHY_SMSC=y -CONFIG_PHY_GIGE=y -CONFIG_MII=y -CONFIG_DRIVER_TI_CPSW=y -CONFIG_DM_PMIC=y -# CONFIG_SPL_DM_PMIC is not set -CONFIG_PMIC_TPS65217=y -CONFIG_SPL_POWER_TPS65910=y -CONFIG_SPI=y -CONFIG_DM_SPI=y -CONFIG_OMAP3_SPI=y -CONFIG_TIMER=y -CONFIG_OMAP_TIMER=y -CONFIG_USB=y -CONFIG_DM_USB_GADGET=y -CONFIG_SPL_DM_USB_GADGET=y -CONFIG_USB_MUSB_HOST=y -CONFIG_USB_MUSB_GADGET=y -CONFIG_USB_MUSB_TI=y -CONFIG_USB_GADGET=y -CONFIG_SPL_USB_GADGET=y -CONFIG_USB_GADGET_MANUFACTURER="Texas Instruments" -CONFIG_USB_GADGET_VENDOR_NUM=0x0451 -CONFIG_USB_GADGET_PRODUCT_NUM=0xd022 -CONFIG_USB_ETHER=y -CONFIG_SPL_USB_ETHER=y -CONFIG_LZO=y diff --git a/configs/am335x_evm_defconfig b/configs/am335x_evm_defconfig index d243cb16e72..cabc181460a 100644 --- a/configs/am335x_evm_defconfig +++ b/configs/am335x_evm_defconfig @@ -13,6 +13,8 @@ CONFIG_AM335X_USB0_PERIPHERAL=y CONFIG_AM335X_USB1=y CONFIG_SPL=y CONFIG_TIMESTAMP=y +CONFIG_FIT_SIGNATURE=y +CONFIG_FIT_VERBOSE=y CONFIG_SPL_LOAD_FIT=y CONFIG_SYS_BOOTM_LEN=0x1000000 CONFIG_DISTRO_DEFAULTS=y @@ -119,5 +121,4 @@ CONFIG_SPL_USB_ETHER=y CONFIG_WDT=y # CONFIG_SPL_WDT is not set CONFIG_DYNAMIC_CRC_TABLE=y -CONFIG_RSA=y CONFIG_LZO=y diff --git a/doc/usage/fit/beaglebone_vboot.rst b/doc/usage/fit/beaglebone_vboot.rst index cd6bb141910..1360c71803c 100644 --- a/doc/usage/fit/beaglebone_vboot.rst +++ b/doc/usage/fit/beaglebone_vboot.rst @@ -67,18 +67,20 @@ a. Set up the environment variable to point to your toolchain. You will need
export CROSS_COMPILE=arm-linux-gnueabi-
-b. Configure and build U-Boot with verified boot enabled:: +b. Configure and build U-Boot with verified boot enabled. Note that we use the +am335x_evm target since it covers all boards based on the AM335x evaluation +board::
export UBOOT=/path/to/u-boot cd $UBOOT # You can add -j10 if you have 10 CPUs to make it faster - make O=b/am335x_boneblack_vboot am335x_boneblack_vboot_config all - export UOUT=$UBOOT/b/am335x_boneblack_vboot + make O=b/am335x_evm am335x_evm_config all + export UOUT=$UBOOT/b/am335x_evm
c. You will now have a U-Boot image::
- file b/am335x_boneblack_vboot/u-boot-dtb.img - b/am335x_boneblack_vboot/u-boot-dtb.img: u-boot legacy uImage, + file b/am335x_evm/u-boot-dtb.img + b/am335x_evm/u-boot-dtb.img: u-boot legacy uImage, U-Boot 2014.07-rc2-00065-g2f69f8, Firmware/ARM, Firmware Image (Not compressed), 395375 bytes, Sat May 31 16:19:04 2014, Load Address: 0x80800000, Entry Point: 0x00000000, @@ -466,7 +468,7 @@ the private key that you signed with so that it can verify any kernels that you sign::
cd $UBOOT - make O=b/am335x_boneblack_vboot EXT_DTB=${WORK}/am335x-boneblack-pubkey.dtb + make O=b/am335x_evm EXT_DTB=${WORK}/am335x-boneblack-pubkey.dtb
Here we are overriding the normal device tree file with our one, which contains the public key. @@ -597,14 +599,11 @@ Further Improvements
Several of the steps here can be easily automated. In particular it would be capital if signing and packaging a kernel were easy, perhaps a simple make -target in the kernel. +target in the kernel. A stating point for this is the 'make image.fit' target +for ARM64 in Linux from v6.9 onwards.
Some mention of how to use multiple .dtb files in a FIT might be useful.
-U-Boot's verified boot mechanism has not had a robust and independent security -review. Such a review should look at the implementation and its resistance to -attacks. - Perhaps the verified boot feature could be integrated into the Amstrom distribution.