U-Boot SPL configures pinmuxes, clocks and other low-level devices. On
the Xilinx ZynqMP SoCs the code to do this resides in a file called
psu_init_gpl.c which is initially generated by the Xilinx development
tools. Add an option to pass these files from the outside (e.g. in the
board files).
For this to work properly, a patch to U-Boot is needed. However this
patch must be applied by each defconfig using
BR2_TARGET_UBOOT_ZYNQMP_PSU_INIT_DIR. If it were in boot/uboot/ to be
applied unconditionally, it would break the build for configs using a
U-Boot version where the patch is already applied.
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Cc: Joel Carlson <joelsoncarl@gmail.com>
Reviewed-by: Joel Carlson <JoelsonCarl@gmail.com>
Tested-by: Joel Carlson <JoelsonCarl@gmail.com>
[Thomas: add comment about U-Boot version requirements to use this
option.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
This adds support the Xilinx ZCU106 development board.
[Tested on the ES2 (Engineering Sample 2) version of the board]
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Cc: Joel Carlson <joelsoncarl@gmail.com>
Tested-by: Joel Carlson <JoelsonCarl@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
In order to boot on the Xilinx ZynqMP SoCs, U-Boot SPL requires a
recent PMU firmware loaded. Instruct U-Boot to add pmufw.bin to the
boot.bin file together with U-Boot SPL, and the boot ROM will load
both.
For this to work properly, a patch to U-Boot is needed. However this
patch must be applied by each defconfig that wishes to use
BR2_TARGET_UBOOT_ZYNQMP_PMUFW. If it were in boot/uboot/ to be applied
unconditionally, it would break the build for configs using a U-Boot
version higher than 2018.7-rc1 where the patch is already applied.
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Cc: Joel Carlson <joelsoncarl@gmail.com>
Reviewed-by: Joel Carlson <JoelsonCarl@gmail.com>
Tested-by: Joel Carlson <JoelsonCarl@gmail.com>
[Thomas:
- indicate that this feature requires U-Boot 2018.07, since commit
c7df098a71e05dc81cee818747759e8060b59626 is needed.
- define UBOOT_ZYNQMP_KCONFIG_PMUFW only once, and instead use a
variable named UBOOT_ZYNQMP_PMUFW_PATH to store the path to the PMU
firmware]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
