Add trace support to generic board
Add hooks for tracing to generic board, including:
- allow early tracing to start early as possible in U-Boot
- reserve memory for trace buffer
- copy early trace buffer to main trace buffer after relocation
- setup full tracing support after relocation
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/common/board_r.c b/common/board_r.c
index f5649c9..f7a036e 100644
--- a/common/board_r.c
+++ b/common/board_r.c
@@ -58,6 +58,7 @@
#include <serial.h>
#include <spi.h>
#include <stdio_dev.h>
+#include <trace.h>
#include <watchdog.h>
#ifdef CONFIG_ADDR_MAP
#include <asm/mmu.h>
@@ -106,6 +107,15 @@
return 0;
}
+static int initr_trace(void)
+{
+#ifdef CONFIG_TRACE
+ trace_init(gd->trace_buff, CONFIG_TRACE_BUFFER_SIZE);
+#endif
+
+ return 0;
+}
+
static int initr_reloc(void)
{
gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
@@ -711,6 +721,7 @@
* TODO: perhaps reset the watchdog in the initcall function after each call?
*/
init_fnc_t init_sequence_r[] = {
+ initr_trace,
initr_reloc,
/* TODO: could x86/PPC have this also perhaps? */
#ifdef CONFIG_ARM