Thanks for following up Marek On Thu, 4 Jun 2026 at 20:33, Marek Vasut <[email protected]> wrote: > > Rename LMB_LIMIT_DMA_BELOW_4G to LMB_LIMIT_DMA_BELOW_RAM_TOP > to make the Kconfig option more descriptive. No functional > change. > > Suggested-by: Ilias Apalodimas <[email protected]> > Signed-off-by: Marek Vasut <[email protected]> > ---
Reviewed-by: Ilias Apalodimas <[email protected]> > Cc: Andrew Goodbody <[email protected]> > Cc: David Lechner <[email protected]> > Cc: Heiko Schocher <[email protected]> > Cc: Heinrich Schuchardt <[email protected]> > Cc: Holger Brunck <[email protected]> > Cc: Ilias Apalodimas <[email protected]> > Cc: Peter Robinson <[email protected]> > Cc: Quentin Schulz <[email protected]> > Cc: Simon Glass <[email protected]> > Cc: Sughosh Ganu <[email protected]> > Cc: Tom Rini <[email protected]> > Cc: [email protected] > --- > lib/Kconfig | 7 ++++--- > lib/lmb.c | 2 +- > 2 files changed, 5 insertions(+), 4 deletions(-) > > diff --git a/lib/Kconfig b/lib/Kconfig > index 29911068a69..cf13ac1bdad 100644 > --- a/lib/Kconfig > +++ b/lib/Kconfig > @@ -1295,13 +1295,14 @@ config SPL_LMB_ARCH_MEM_MAP > memory map. Enable this config in such scenarios which allow > architectures and boards to define their own memory map. > > -config LMB_LIMIT_DMA_BELOW_4G > +config LMB_LIMIT_DMA_BELOW_RAM_TOP > bool > depends on LMB > default y if ARCH_BCM283X > help > - Some architectures can not DMA above 4 GiB boundary, > - limit available memory to memory below 4 GiB boundary. > + Some architectures can not DMA above ram_top boundary, > + which is after 4 GiB or 32-bit boundary too. Limit the > + available memory to memory below ram_top boundary. > > config PHANDLE_CHECK_SEQ > bool "Enable phandle check while getting sequence number" > diff --git a/lib/lmb.c b/lib/lmb.c > index a2aeb526e29..275d105c5aa 100644 > --- a/lib/lmb.c > +++ b/lib/lmb.c > @@ -628,7 +628,7 @@ static void lmb_add_memory(void) > > if (size) { > lmb_add(bd->bi_dram[i].start, size); > - if (!IS_ENABLED(CONFIG_LMB_LIMIT_DMA_BELOW_4G)) > + if (!IS_ENABLED(CONFIG_LMB_LIMIT_DMA_BELOW_RAM_TOP)) > continue; > > bank_end = bd->bi_dram[i].start + size; > -- > 2.53.0 >
