[PATCHv3] zynqmp: restore the jtag interface
Jorge Ramirez-Ortiz, Foundries
jorge at foundries.io
Thu Oct 14 09:25:43 CEST 2021
On 14/10/21, Michal Simek wrote:
> 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.
thanks a lot Michal for taking care of this
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