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[U-Boot,v4,18/20] sunxi: use SPL header DT name for FIT board matching

Message ID 1493166772-24598-19-git-send-email-andre.przywara@arm.com
State Accepted
Delegated to: Jagannadha Sutradharudu Teki
Headers show

Commit Message

Andre Przywara April 26, 2017, 12:32 a.m. UTC
Now that we can store a DT name in the SPL header, use this string (if
available) when finding the right DT blob to load for U-Boot proper.
This allows a generic U-Boot (proper) image to be combined with a bunch
of supported DTs, with just the SPL (possibly only that string) to be
different.
Eventually this string can be written after the build process by some
firmware update tool.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
---
 board/sunxi/board.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)
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Patch

diff --git a/board/sunxi/board.c b/board/sunxi/board.c
index 5bb7b53..efc86d5 100644
--- a/board/sunxi/board.c
+++ b/board/sunxi/board.c
@@ -753,13 +753,19 @@  int ft_board_setup(void *blob, bd_t *bd)
 #ifdef CONFIG_SPL_LOAD_FIT
 int board_fit_config_name_match(const char *name)
 {
-	const char *cmp_str;
+	struct boot_file_head *spl = (void *)(ulong)SPL_ADDR;
+	const char *cmp_str = (void *)(ulong)SPL_ADDR;
 
+	/* Check if there is a DT name stored in the SPL header and use that. */
+	if (spl->dt_name_offset) {
+		cmp_str += spl->dt_name_offset;
+	} else {
 #ifdef CONFIG_DEFAULT_DEVICE_TREE
-	cmp_str = CONFIG_DEFAULT_DEVICE_TREE;
+		cmp_str = CONFIG_DEFAULT_DEVICE_TREE;
 #else
-	return 0;
+		return 0;
 #endif
+	};
 
 /* Differentiate the two Pine64 board DTs by their DRAM size. */
 	if (strstr(name, "-pine64") && strstr(cmp_str, "-pine64")) {