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authorMichal Simek2021-08-19 11:07:59 +0200
committerMichal Simek2021-08-26 08:14:43 +0200
commit5bd5ee02b23be2062c5e0c194355534eaa7e7854 (patch)
tree8de5ad83c87d05ba5e3603a6dd046b1fd8bdb522 /board/xilinx/zynqmp
parent88232532728c91d69a1f5efb219f6cd7fc030461 (diff)
xilinx: zynqmp: Check that DT is 64bit aligned
DT needs to be 64bit aligned. If it is not fdt64_to_cpu will fail when try to read information about reserved memory. The system ends in exception without any clue what's going it. That's why detect not aligned DT and panic to show where the issue is coming from. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Diffstat (limited to 'board/xilinx/zynqmp')
-rw-r--r--board/xilinx/zynqmp/zynqmp.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/board/xilinx/zynqmp/zynqmp.c b/board/xilinx/zynqmp/zynqmp.c
index e43177ea4e4..ea15e62eb21 100644
--- a/board/xilinx/zynqmp/zynqmp.c
+++ b/board/xilinx/zynqmp/zynqmp.c
@@ -470,6 +470,9 @@ ulong board_get_usable_ram_top(ulong total_size)
phys_addr_t reg;
struct lmb lmb;
+ if (!IS_ALIGNED((ulong)gd->fdt_blob, 0x8))
+ panic("Not 64bit aligned DT location: %p\n", gd->fdt_blob);
+
/* found enough not-reserved memory to relocated U-Boot */
lmb_init(&lmb);
lmb_add(&lmb, gd->ram_base, gd->ram_size);