Commit graph

3 commits

Author SHA1 Message Date
Emanuele Ghidoli
2a61447414 arm: k3: fix fdt_del_node_path implicit declaration and a missing include
Fix missing declaration of fdt_del_node_path() while compiling am625_fdt.c and
missing common_fdt.h include in common_fdt.c

Fixes: 70aa5a94d4 ("arm: mach-k3: am62: Fixup CPU core, gpu and pru nodes in fdt")
Signed-off-by: Emanuele Ghidoli <emanuele.ghidoli@toradex.com>
2023-07-28 10:11:01 -04:00
Emanuele Ghidoli
70aa5a94d4 arm: mach-k3: am62: Fixup CPU core, gpu and pru nodes in fdt
AM62x SoC is available in multiple variant:
- CPU cores (Cortex-A) AM62x1 (1 core), AM62x2 (2 cores), AM62x4 (4 cores)
- GPU AM625x with GPU, AM623x without GPU
- PRU (Programmable RT unit) can be present or not on AM62x2/AM62x4

Remove the relevant FDT nodes by reading the actual configuration
from the SoC registers, with that change is possible to have a single
dts/dtb file handling the different variant at runtime.
While removing GPU node and CPU nodes also the watchdog node
in the same Module Domain is removed.

A similar approach is implemented for example on i.MX8 and STM32MP1 SoC.

Signed-off-by: Emanuele Ghidoli <emanuele.ghidoli@toradex.com>
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
2023-07-21 15:32:12 -04:00
Emanuele Ghidoli
7b7288df34 arm: k3: Fix ft_system_setup so it can be enabled on any SoC
ft_system_setup cannot be enabled on SoC without msmc sram otherwise
fdt_fixup_msmc_ram function fails causing system reset.

Fix by moving fdt_fixup_msmc_ram to common_fdt.c file and creating
SoC (AM654, J721E and J721S2) specific files for fdt fixups.

This change was verified to not change anything on any existing board
(all the J721S2, AM654 and J721E boards requires it,
none of the remaining k3 boards require it).

Fixes: 30e96a2401 ("arm: mach-k3: Move MSMC fixup to SoC level")
Signed-off-by: Emanuele Ghidoli <emanuele.ghidoli@toradex.com>
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
2023-07-21 15:32:12 -04:00