On 10/13/21 15:48, Jorge Ramirez-Ortiz wrote:
When boot.bin is configured for secure boot the CSU will disable the JTAG interface on all cases.
Some boards might rely on this interface for flashing to QSPI in which case those systems might end up bricked during development.
This commit will restore the interface under CSU control
Signed-off-by: Jorge Ramirez-Ortiz jorge@foundries.io
v3: delete unvalid removal of empty line
arch/arm/mach-zynqmp/Kconfig | 8 +++++ arch/arm/mach-zynqmp/include/mach/hardware.h | 31 +++++++++++++++----- board/xilinx/zynqmp/zynqmp.c | 19 ++++++++++++ 3 files changed, 51 insertions(+), 7 deletions(-)
diff --git a/arch/arm/mach-zynqmp/Kconfig b/arch/arm/mach-zynqmp/Kconfig index f7b08db355..ee0895d9a2 100644 --- a/arch/arm/mach-zynqmp/Kconfig +++ b/arch/arm/mach-zynqmp/Kconfig @@ -149,6 +149,14 @@ config SPL_ZYNQMP_ALT_BOOTMODE_ENABLED Overwrite bootmode selected via boot mode pins to tell SPL what should be the next boot device.
+config SPL_ZYNQMP_RESTORE_JTAG
- bool "Restore JTAG"
- depends on SPL
- help
Booting SPL in secure mode causes the CSU to disable the JTAG interfaceeven if no eFuses were burnt. This option restores the interface ifpossible.
here should be tab and 2 spaces.
I have fixed it myself and applied. M