Hi Alex,
-----Original Message----- From: Alexander Graf [mailto:agraf@suse.de] Sent: Tuesday, June 21, 2016 4:37 AM To: u-boot@lists.denx.de Cc: york sun york.sun@nxp.com; Prabhakar Kushwaha prabhakar.kushwaha@nxp.com Subject: [PATCH v4 3/9] ls2080ardb: Reserve DP-DDR RAM
The DP-DDR shouldn't be exposed as conventional memory to an OS, so let's rather claim it's a reserved region in the EFI memory map
Signed-off-by: Alexander Graf agraf@suse.de
board/freescale/ls2080ardb/ls2080ardb.c | 9 +++++++++ 1 file changed, 9 insertions(+)
diff --git a/board/freescale/ls2080ardb/ls2080ardb.c b/board/freescale/ls2080ardb/ls2080ardb.c index d1475a5..493f66d 100644 --- a/board/freescale/ls2080ardb/ls2080ardb.c +++ b/board/freescale/ls2080ardb/ls2080ardb.c @@ -16,6 +16,7 @@ #include <fsl_debug_server.h> #include <fsl-mc/fsl_mc.h> #include <environment.h> +#include <efi_loader.h> #include <i2c.h> #include <asm/arch/soc.h> #include <fsl_sec.h> @@ -202,6 +203,14 @@ int misc_init_r(void) if (adjust_vdd(0)) printf("Warning: Adjusting core voltage failed.\n");
+#ifdef CONFIG_EFI_LOADER
- if (soc_has_dp_ddr() && gd->bd->bi_dram[2].size) {
efi_add_memory_map(gd->bd->bi_dram[2].start,gd->bd->bi_dram[2].size >>EFI_PAGE_SHIFT,
EFI_RESERVED_MEMORY_TYPE, false);- }
+#endif
DP-DDR is not for ARM cores. It is for other accelerators present in LS2080A. I will suggest not to use DP-DDR for EFI memory.
--prabhakar