2 Commits

Author	SHA1	Message	Date
Marek Vasut	057b1f8df9	arm64: renesas: Clean up default boot command ... The current default boot command does not respect the Linux kernel 2 MiB alignment requirement, present on aarch64 [1]: " The Image must be placed text_offset bytes from a 2MB aligned base address anywhere in usable system RAM and called there. " Adjust the boot command such, that it always places both Image and DT at the nearest highest 2 MiB aligned offset. The DT is placed at lower 2 MiB aligned address, the aarch64 Image is placed at the next higher 2 MiB aligned address. Is is unlikely that a DT would be larger than 2 MiB on these systems. Replace use of hard-coded load addresses with generic ${loadaddr} aligned using setexpr. This way, if user picks valid ${loadaddr}, their kernel and DT address will be correctly set as well. Fix up boot commands to use && instead of ; to exit the boot command early in case of failure. [1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/arch/arm64/booting.rst#n138 Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>	2025-11-06 20:13:52 +01:00
Marek Vasut	8a2ffd5a85	arm64: renesas: Add R-Car S4 Starter Kit support ... Add support for the R-Car S4 Starter Kit with R8A779F4 SoC support. This implementation natively uses OF_UPSTREAM to pull in most recent DT. The defconfig is derived from S4 Spider, with reduced UART baud rate to 921600 Bdps. The DT alias to rswitch is removed as the alias should point to rswitch ports, not to rswitch itself, see [1]. [1] https://lore.kernel.org/linux-arm-kernel/20250118111344.361617-5-marek.vasut+renesas@mailbox.org/ Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>	2025-02-04 23:32:00 +01:00