Hi Atish, On Thu, Jun 18, 2020 at 3:04 PM Atish Patra <[email protected]> wrote: > > On Wed, Jun 17, 2020 at 5:46 PM Bin Meng <[email protected]> wrote: > > > > Hi Atish, > > > > On Thu, Jun 18, 2020 at 7:51 AM Atish Patra <[email protected]> wrote: > > > > > > fdtdec_get_addr_size uses a fixed value for address_cells & size_cells > > > which may not work correctly always. fdtdec_get_addr_size_no_parent > > > will automatically calculate the cell sizes from parent but not > > > optimized especially when parent node is already available with the > > > caller. > > > > > > Use fdtdec_get_addr_size_auto_parent that automatically calculate the > > > cell sizes and optimized for the given usecase. > > > > > > Signed-off-by: Atish Patra <[email protected]> > > > --- > > > arch/riscv/lib/fdt_fixup.c | 2 +- > > > lib/fdtdec.c | 3 ++- > > > 2 files changed, 3 insertions(+), 2 deletions(-) > > > > > > diff --git a/arch/riscv/lib/fdt_fixup.c b/arch/riscv/lib/fdt_fixup.c > > > index 6db48ad04a56..f2ec37b57b15 100644 > > > --- a/arch/riscv/lib/fdt_fixup.c > > > +++ b/arch/riscv/lib/fdt_fixup.c > > > @@ -44,7 +44,7 @@ int riscv_fdt_copy_resv_mem_node(const void *src, void > > > *dst) > > > fdt_for_each_subnode(node, src, offset) { > > > name = fdt_get_name(src, node, NULL); > > > > > > - addr = fdtdec_get_addr_size_auto_noparent(src, node, > > > + addr = fdtdec_get_addr_size_auto_parent(src, offset, node, > > > "reg", 0, &size, > > > false); > > > if (addr == FDT_ADDR_T_NONE) { > > > diff --git a/lib/fdtdec.c b/lib/fdtdec.c > > > index 1f2b763acc31..b62eb142ccc3 100644 > > > --- a/lib/fdtdec.c > > > +++ b/lib/fdtdec.c > > > @@ -1296,7 +1296,8 @@ int fdtdec_add_reserved_memory(void *blob, const > > > char *basename, > > > const char *name = fdt_get_name(blob, node, NULL); > > > phys_addr_t addr, size; > > > > > > - addr = fdtdec_get_addr_size(blob, node, "reg", &size); > > > + addr = fdtdec_get_addr_size_auto_parent(blob, parent, > > > node, > > > + "reg", 0, &size, > > > false); > > > > There is already a patch for this change (although slightly different, > > but fixed the same thing) > > http://patchwork.ozlabs.org/project/uboot/patch/[email protected]/ > > > > Ah I missed that. I used this version compared to > fdtdec_get_addr_size_fixed because of the following comment > in the header file. > > "You probably don't want to use this function directly except to parse > non-standard properties, and never to parse the "reg" property. Instead, > use one of the "auto" variants below, which automatically honor the > #address-cells and #size-cells properties in the parent node." > > Do you want to update your patch or I can send v2 by splitting riscv & > generic changes ? > Please let me know your preference.
I intended to use fdtdec_get_addr_size_fixed() because na and ns are already known at this point. Calling fdtdec_get_addr_size_auto_parent() duplicates the efforts of getting values of na and ns, and is not necessary. > > > Please also send them in separate patches in the future, as one is > > RISC-V specific and the other one is for generic codes. Regards, Bin
