Shubhrajyoti Datta 73c612fe2a gpio: zynq: Add pmc gpio support
Add PMC gpio support.
Only bank 0,1, 3 and 4 are connected to the multiplexed Input output
pins. Bank 0 and 1 to mio and bank 3 and 4 to extended multiplexed input
output pins.

Versal devices are the industry's first adaptive compute
acceleration platforms.
https://www.xilinx.com/support/documentation/data_sheets/ds950-versal-overview.pdf

On the Versal platform, we are using two customized GPIO controllers(IP)
which were used in Zynq/ZynqMp platform.
One of them present in the Platform Management Controller(PMC) block and
other in Processing System(PS) block.

In PMC_GPIO only Bank0,1,3 & 4 are enabled and in PS_GPIO only
Bank 0 & 3 are enabled.

You can find more details of GPIO IP in ZynqMP TRM General Purpose
I/O(Chapter-27).
https://www.xilinx.com/support/documentation/user_guides/ug1085-zynq-ultrascale-trm.pdf

Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2020-06-24 12:16:57 +02:00
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