diff options
| author | Michal Simek <michal.simek@xilinx.com> | 2015-06-15 14:22:50 +0200 |
|---|---|---|
| committer | Soren Brinkmann <soren.brinkmann@xilinx.com> | 2016-04-25 09:49:59 -0700 |
| commit | b96f77c65ba5ce91091044b43704562e622a353b (patch) | |
| tree | f1974dd269529526912188524f3afa2d1f5e6ede /docs | |
| parent | 2cb5bac9849b596eed0107be1c07dc4316ce6ee6 (diff) | |
zynqmp: FSBL->ATF handover
Parse the parameter structure the FSBL populates, to populate the bl32
and bl33 image structures.
Cc: Sarat Chand Savitala <saratcha@xilinx.com>
Cc: petalinux-dev@xilinx.com
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
[ SB
- pass pointers to structs instead of structs
- handle execution state parameter
- populate bl32 SPSR
- add documentation
- query bootmode and consider missing handoff parameters an error when
not in JTAG boot mode
]
Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/plat/xilinx-zynqmp.md | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/docs/plat/xilinx-zynqmp.md b/docs/plat/xilinx-zynqmp.md index 166b4e3c..2af841b1 100644 --- a/docs/plat/xilinx-zynqmp.md +++ b/docs/plat/xilinx-zynqmp.md @@ -26,6 +26,13 @@ make ERROR_DEPRECATED=1 RESET_TO_BL31=1 CROSS_COMPILE=aarch64-none-elf- PLAT=zyn * `ZYNQMP_BL32_MEM_BASE`: Specifies the base address of the bl32 binary. * `ZYNQMP_BL32_MEM_SIZE`: Specifies the size of the memory region of the bl32 binary. +# FSBL->ATF Parameter Passing +The FSBL populates a data structure with image information for the ATF. The ATF +uses that data to hand off to the loaded images. The address of the handoff data +structure is passed in the ```PMU_GLOBAL.GLOBAL_GEN_STORAGE6``` register. The +register is free to be used by other software once the ATF is bringing up +further firmware images. + # Power Domain Tree The following power domain tree represents the power domain model used by the ATF for ZynqMP: |