ARM: mach-airoha: Rework support and directory structure

2023-12-22T14:12:28+00:00

Having a platform need a mach-* directory should be seen as a negative, it means the platform needs special non-standard handling. ARM64 support does not allow mach-* directories at all. While we may not get to that given all the non-standard architectures we support, we should still try to get as close as we can and reduce the number of mach directories. The mach-airoha/ directory, and files within, provide just one "feature": having the kernel print the machine name if the DTB does not also contain a "model" string (which they always do). To reduce the number of mach-* directories let's do without that feature and remove this directory. It also seems there was a copy/paste error and the "MEDIATEK_DT" name was re-used in the DT_MACHINE_START macro. This may have caused conflicts if this was built in a multi-arch configuration. NOTE: The default l2c_aux_mask is now ~0 but these devices never have this type of cache controller so this is safe. Signed-off-by: Andrew Davis Signed-off-by: Arnd Bergmann

ARM: Add basic support for Airoha EN7523 SoC

2022-03-01T08:02:01+00:00

EN7523 is an armv8 based silicon used inside broadband access type devices such as xPON and xDSL. It shares various silicon blocks with MediaTek silicon such as the MT7622. Add basic support for Airoha EN7523, enough for booting to console. The UART is basically 8250-compatible, except for the clock selection. A clock-frequency value is synthesized to get this to run at 115200 bps. Signed-off-by: John Crispin Signed-off-by: Bert Vermeulen Signed-off-by: Felix Fietkau Link: https://lore.kernel.org/r/20220130145116.88406-4-nbd@nbd.name Signed-off-by: Matthias Brugger

kernel/git/stable/linux.git/arch/arm/mach-airoha, branch master

ARM: mach-airoha: Rework support and directory structure

ARM: Add basic support for Airoha EN7523 SoC