arm64: dts: ti: am62-lp-sk: Add overlay for NAND expansion card

Browse source

The NAND expansion card (PROC143E1) connects over the User/MCU/PRU
Expansion port on the am62-lp-sk EVM.

The following pins are shared between McASP1 and GPMC-NAND so
both cannot work simultaneously.

Pin name	McASP1 function		GPMC function
========	===============		=============
J17		MCASP1_AXR0		GPMC0_WEN
P21		MCASP1_AFSX		GPMC0_WAIT0
K17		MCASP1_ACLKX		GPMC0_BE0N_CLE
K20		MCASP1_AXR2		GPMC0_ADVN_ALE

The factory default sets the pins for McASP1 use. (i.e.
Resistor Array RA1 installed, RA4 not installed).

For NAND use, RA1 has to be removed and RA4 must be
installed.

Signed-off-by: Roger Quadros <rogerq@kernel.org>
Link: https://lore.kernel.org/r/20240622-am62lp-sk-nand-v1-2-caee496eaf42@kernel.org
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>

...

This commit is contained in:

Roger Quadros 2024-06-22 14:59:57 +03:00 • committed by Vignesh Raghavendra

parent a0286c7bf0

commit e569152274

3 changed files with 121 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

1

arch/arm64/boot/dts/ti/Makefile

View file

116

arch/arm64/boot/dts/ti/k3-am62-lp-sk-nand.dtso

View file

4

arch/arm64/boot/dts/ti/k3-am62-lp-sk.dts

View file