We are generally supposed to implement SoC/board-specific SPL init
code in spl_board_init(), but it is called after spl_init() where the
FDT is setup and devices are bound.
This new stub spl_early_board_init() would be useful to put something
really SoC-specific, for example, debug_uart_init().
In fact, I was hit by some problems on FDT setup when I was tackling
on a completely new platform. I wished I could use the debug UART
earlier in situations like that.
Signed-off-by: Masahiro Yamada <yamada.masah...@socionext.com>
---
common/spl/spl.c | 6 ++++++
include/spl.h | 1 +
2 files changed, 7 insertions(+)
diff --git a/common/spl/spl.c b/common/spl/spl.c
index e5167bf..df85b09 100644
--- a/common/spl/spl.c
+++ b/common/spl/spl.c
@@ -150,6 +150,10 @@ static int spl_ram_load_image(void)
}
#endif
+void __weak spl_early_board_init(void)
+{
+}
+
int spl_init(void)
{
int ret;
@@ -344,6 +348,8 @@ void board_init_r(gd_t *dummy1, ulong dummy2)
{
int i;
+ spl_early_board_init();
+
debug(">>spl:board_init_r()\n");
#if defined(CONFIG_SYS_SPL_MALLOC_START)
diff --git a/include/spl.h b/include/spl.h
index 92cdc04..e3c1873 100644
--- a/include/spl.h
+++ b/include/spl.h
@@ -93,6 +93,7 @@ int spl_load_image_ext_os(block_dev_desc_t *block_dev, int
partition);
*/
int spl_init(void);
+void spl_early_board_init(void);
#ifdef CONFIG_SPL_BOARD_INIT
void spl_board_init(void);
#endif
--
1.9.1
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