11 Apr
2022
11 Apr
'22
8:35 p.m.
On Fri, 1 Apr 2022 at 06:44, Paweł Anikiel pan@semihalf.com wrote:
Before relocating to SDRAM, the ECC is initialized by clearing the whole SDRAM. In order to speed this up, dcache_enable is used (see sdram_init_ecc_bits).
Since commit 503eea451903 ("arm: cp15: update DACR value to activate access control"), this no longer works, because running code in OCRAM with the XN bit set causes a page fault. Override dram_bank_mmu_setup to disable XN in the OCRAM and setup DRAM dcache before relocation.
Signed-off-by: Paweł Anikiel pan@semihalf.com
arch/arm/mach-socfpga/misc_arria10.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+)
Reviewed-by: Simon Glass sjg@chromium.org