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| author | Michal Simek <michal.simek@xilinx.com> | 2019-12-19 17:45:15 +0100 |
|---|---|---|
| committer | Michal Simek <michal.simek@xilinx.com> | 2020-01-14 09:05:53 +0100 |
| commit | fc274a593217de8f8450274275528c29c7678064 (patch) | |
| tree | 0a9ec352bd27af685948cd129665fb568b7f0a63 /board | |
| parent | db5b253f01785dba18680fdea143794988a5a566 (diff) | |
| download | u-boot-fc274a593217de8f8450274275528c29c7678064.tar.gz | |
arm64: zynqmp: Add support for OF_SEPARATE with board DTB
OF_BOARD and OF_SEPARATE can use board specific board_fdt_blob_setup().
OF_BOARD option is mostly used for picking up DTB from certain location.
OF_SEPARATE option is used when DTB is appended after u-boot binary.
This board specific function is aligned with current version in
lib/fdtdec.c with checking CONFIG_XILINX_OF_BOARD_DTB_ADDR address first.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Diffstat (limited to 'board')
| -rw-r--r-- | board/xilinx/Kconfig | 2 | ||||
| -rw-r--r-- | board/xilinx/common/board.c | 29 |
2 files changed, 24 insertions, 7 deletions
diff --git a/board/xilinx/Kconfig b/board/xilinx/Kconfig index 7833b11767..73fc1be014 100644 --- a/board/xilinx/Kconfig +++ b/board/xilinx/Kconfig @@ -44,7 +44,7 @@ config XILINX_OF_BOARD_DTB_ADDR hex default 0x1000 if ARCH_VERSAL default 0x100000 if ARCH_ZYNQ || ARCH_ZYNQMP - depends on OF_BOARD + depends on OF_BOARD || OF_SEPARATE help Offset in the memory where the board configuration DTB is placed. diff --git a/board/xilinx/common/board.c b/board/xilinx/common/board.c index 62dafe0f90..ae5fe2729f 100644 --- a/board/xilinx/common/board.c +++ b/board/xilinx/common/board.c @@ -5,6 +5,7 @@ */ #include <common.h> +#include <asm/sections.h> #include <dm/uclass.h> #include <i2c.h> @@ -37,16 +38,32 @@ int zynq_board_read_rom_ethaddr(unsigned char *ethaddr) return ret; } -#if defined(CONFIG_OF_BOARD) +#if defined(CONFIG_OF_BOARD) || defined(CONFIG_OF_SEPARATE) void *board_fdt_blob_setup(void) { static void *fdt_blob = (void *)CONFIG_XILINX_OF_BOARD_DTB_ADDR; - if (fdt_magic(fdt_blob) != FDT_MAGIC) { - printf("DTB is not passed via %p\n", fdt_blob); - return NULL; - } + if (fdt_magic(fdt_blob) == FDT_MAGIC) + return fdt_blob; - return fdt_blob; + debug("DTB is not passed via %p\n", fdt_blob); + +#ifdef CONFIG_SPL_BUILD + /* FDT is at end of BSS unless it is in a different memory region */ + if (IS_ENABLED(CONFIG_SPL_SEPARATE_BSS)) + fdt_blob = (ulong *)&_image_binary_end; + else + fdt_blob = (ulong *)&__bss_end; +#else + /* FDT is at end of image */ + fdt_blob = (ulong *)&_end; +#endif + + if (fdt_magic(fdt_blob) == FDT_MAGIC) + return fdt_blob; + + debug("DTB is also not passed via %p\n", fdt_blob); + + return NULL; } #endif |