[PATCHv3] zynqmp: restore the jtag interface

[Michal Simek]

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 at 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 interface
> +	 even if no eFuses were burnt. This option restores the interface if
> +	 possible.

here should be tab and 2 spaces.

I have fixed it myself and applied.
M