On Oct 06, 2025 at 13:58:47 +0530, Anshul Dalal wrote: > The boot flow in K3 platforms requires the subsequent boot stages to be > aware of the memory reserved for previous boot binaries. In the regular > boot sequence of: > > R5 SPL -> ATF -> OP-TEE -> A-core SPL -> U-Boot -> Kernel, > > Both A-core SPL and U-Boot should be made aware of the memory reserved > for ATF and OP-TEE from their device-tree. Currently this information is > absent. > > Therefore this patch adds the reserved-memory regions as part of > spl_perform_arch_fixups for the next stage's DT. This is called during > both R5 and A-core SPL which fixes up the DT for their respective next > stages: A-core SPL and U-Boot proper. > > Signed-off-by: Anshul Dalal <[email protected]> > Tested-by: Wadim Egorov <[email protected]> > --- > arch/arm/mach-k3/common.c | 11 +++++++++++ > 1 file changed, 11 insertions(+) > > diff --git a/arch/arm/mach-k3/common.c b/arch/arm/mach-k3/common.c > index 0a73b1fa296..581a7246630 100644 > --- a/arch/arm/mach-k3/common.c > +++ b/arch/arm/mach-k3/common.c > @@ -321,6 +321,17 @@ static __maybe_unused void k3_dma_remove(void) > pr_warn("DMA Device not found (err=%d)\n", rc); > } > > +void spl_perform_arch_fixups(struct spl_image_info *spl_image) > +{ > + void *fdt = spl_image_fdt_addr(spl_image); > + > + if (!fdt) > + return; > + > + fdt_fixup_reserved(fdt, "tfa", CONFIG_K3_ATF_LOAD_ADDR, 0x80000); > + fdt_fixup_reserved(fdt, "optee", CONFIG_K3_OPTEE_LOAD_ADDR, 0x1800000); > +} > +
Reviewed-by: Dhruva Gole <[email protected]> -- Best regards, Dhruva Gole Texas Instruments Incorporated
