Please check void rt_hw_mmu_init(void) in /libcpu/aarch64/common/mmu.c
And ARM spec for SCTLR_EL1 register details :-)
Please check void rt_hw_mmu_init(void) in /libcpu/aarch64/common/mmu.c
And ARM spec for SCTLR_EL1 register details :-)
Are you using Raspberry Pi Imager to create the sdcard? Raspbian uses two partitions, one fat32 for boot (kernels and config.txt), one ext4 for Linux system.
Ask Disabling L1 and L2 cache