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arm64: xilinx: Never touch DDR if system has no DDR

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If DDR is not mapped do not touch it. Default
XILINX_OF_BOARD_DTB_ADDR is pointing to DDR.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
This commit is contained in:
Michal Simek
2020-03-19 10:23:56 +01:00
parent 98da86681e
commit 453bb77d09
1 changed files with 5 additions and 1 deletions
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6
board/xilinx/common/board.c
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@@ -41,12 +41,16 @@ int zynq_board_read_rom_ethaddr(unsigned char *ethaddr)
#if defined(CONFIG_OF_BOARD) || defined(CONFIG_OF_SEPARATE) #if defined(CONFIG_OF_BOARD) || defined(CONFIG_OF_SEPARATE)
void *board_fdt_blob_setup(void) void *board_fdt_blob_setup(void)
{ {
static void *fdt_blob = (void *)CONFIG_XILINX_OF_BOARD_DTB_ADDR; static void *fdt_blob;
#if !defined(CONFIG_VERSAL_NO_DDR) && !defined(CONFIG_ZYNQMP_NO_DDR)
fdt_blob = (void *)CONFIG_XILINX_OF_BOARD_DTB_ADDR;
if (fdt_magic(fdt_blob) == FDT_MAGIC) if (fdt_magic(fdt_blob) == FDT_MAGIC)
return fdt_blob; return fdt_blob;
debug("DTB is not passed via %p\n", fdt_blob); debug("DTB is not passed via %p\n", fdt_blob);
#endif
#ifdef CONFIG_SPL_BUILD #ifdef CONFIG_SPL_BUILD
/* FDT is at end of BSS unless it is in a different memory region */ /* FDT is at end of BSS unless it is in a different memory region */