[PATCH 0/3] arm64: zynqmp: Add support for running U-Boot in EL3 again

Michal Simek michal.simek at xilinx.com
Mon Mar 23 14:57:57 CET 2020


in past without PMU fw it was possible to run U-Boot in EL3. Firmware
changes made ATF required that's why generation was done like this.
But some recent changes (especially passing PMUFW object to PMU from SPL)
introduce the whole infrastructure for talking to PMU via IPI interface.
That's why this interface can be reused and run U-Boot in EL3 again.

Based on it I have fixed mkimage_fit_atf.sh script to generate
u-boot.its/itb based on ATF availability but still producing working image
without it.

Also found two issues which should be fixed to get U-Boot work in EL3.


Michal Simek (3):
  firmware: zynqmp: Enable IPI code calling also in EL3
  arm64: zynqmp: Reorder parameters for zynqmp_mmio_write()
  arm64: zynqmp: Add support for u-boot.itb generation without ATF

 arch/arm/mach-zynqmp/mkimage_fit_atf.sh | 16 ++++++++++++----
 board/xilinx/zynqmp/zynqmp.c            |  2 +-
 drivers/firmware/firmware-zynqmp.c      |  2 +-
 3 files changed, 14 insertions(+), 6 deletions(-)


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