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Diffstat (limited to 'docs/plat/warp7.rst')
| -rw-r--r-- | docs/plat/warp7.rst | 28 |
1 files changed, 17 insertions, 11 deletions
diff --git a/docs/plat/warp7.rst b/docs/plat/warp7.rst index 6c04d91ec..f98a76faf 100644 --- a/docs/plat/warp7.rst +++ b/docs/plat/warp7.rst @@ -1,5 +1,5 @@ -Trusted Firmware-A for i.MX7 WaRP7 -================================== +NXP i.MX7 WaRP7 +=============== The Trusted Firmware-A port for the i.MX7Solo WaRP7 implements BL2 at EL3. The i.MX7S contains a BootROM with a High Assurance Boot (HAB) functionality. @@ -7,21 +7,23 @@ This functionality provides a mechanism for establishing a root-of-trust from the reset vector to the command-line in user-space. Boot Flow -========= +--------- BootROM --> TF-A BL2 --> BL32(OP-TEE) --> BL33(U-Boot) --> Linux In the WaRP7 port we encapsulate OP-TEE, DTB and U-Boot into a FIP. This FIP is expected and required -# Build Instructions +Build Instructions +------------------ We need to use a file generated by u-boot in order to generate a .imx image the BootROM will boot. It is therefore _required_ to build u-boot before TF-A and furthermore it is _recommended_ to use the mkimage in the u-boot/tools directory to generate the TF-A .imx image. -## U-Boot: +U-Boot +~~~~~~ https://git.linaro.org/landing-teams/working/mbl/u-boot.git @@ -31,7 +33,8 @@ https://git.linaro.org/landing-teams/working/mbl/u-boot.git make warp7_bl33_defconfig; make u-boot.imx arch=ARM CROSS_COMPILE=arm-linux-gnueabihf- -## OP-TEE: +OP-TEE +~~~~~~ https://github.com/OP-TEE/optee_os.git @@ -39,7 +42,8 @@ https://github.com/OP-TEE/optee_os.git make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- PLATFORM=imx PLATFORM_FLAVOR=mx7swarp7 ARCH=arm CFG_PAGEABLE_ADDR=0 CFG_DT_ADDR=0x83000000 CFG_NS_ENTRY_ADDR=0x87800000 -## TF-A: +TF-A +~~~~ https://github.com/ARM-software/arm-trusted-firmware.git @@ -75,7 +79,8 @@ It is also assumed copy of mbedtls is available on the path path ../mbedtls /path/to/u-boot/tools/mkimage -n /path/to/u-boot/u-boot.cfgout -T imximage -e 0x9df00000 -d ./build/warp7/debug/bl2.bin ./build/warp7/debug/bl2.bin.imx -## FIP: +FIP +~~~ .. code:: shell @@ -110,8 +115,8 @@ It is also assumed copy of mbedtls is available on the path path ../mbedtls --trusted-key-cert fiptool_images/trusted-key-cert.key-crt \ --tb-fw-cert fiptool_images/trusted-boot-fw.key-crt warp7.fip -# Deploy Images - +Deploy Images +------------- First place the WaRP7 into UMS mode in u-boot this should produce an entry in /dev like /dev/disk/by-id/usb-Linux_UMS_disk_0_WaRP7-0xf42400d3000001d4-0\:0 @@ -138,7 +143,8 @@ Remember to umount the USB device pefore proceeding sudo umount /dev/disk/by-id/usb-Linux_UMS_disk_0_WaRP7-0xf42400d3000001d4-0\:0* -# Signing BL2 +Signing BL2 +----------- A further step is to sign BL2. |