Yao Zi 12b90ea3c2 riscv: cpu: th1520: Limit upper RAM boundary to 4 GiB
TH1520 SoC ships DMA peripherals that could only reach the first 32-bit
range of memory, for example, the GMAC controllers. Let's limit the
usable top of RAM below 4GiB to ensure DMA allocations are accessible to
all peripherals.

Signed-off-by: Yao Zi <ziyao@disroot.org>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
2025-07-17 14:37:40 +08:00
..
2025-03-25 16:34:50 +08:00