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| author | Simon Glass <sjg@chromium.org> | 2013-06-11 11:14:42 -0700 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2013-06-26 10:16:41 -0400 |
| commit | 71c52dba2bf42937e6c6b736393eeecb11f10d8f (patch) | |
| tree | 9d16c328b39782abb71b42cfeb0dedb211016e66 /common | |
| parent | 5c2aeac5ae3556fd75e63596740d9ce0faf7afa4 (diff) | |
| download | u-boot-imx-71c52dba2bf42937e6c6b736393eeecb11f10d8f.zip u-boot-imx-71c52dba2bf42937e6c6b736393eeecb11f10d8f.tar.gz u-boot-imx-71c52dba2bf42937e6c6b736393eeecb11f10d8f.tar.bz2 | |
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>
Diffstat (limited to 'common')
| -rw-r--r-- | common/board_f.c | 17 | ||||
| -rw-r--r-- | common/board_r.c | 11 |
2 files changed, 27 insertions, 1 deletions
diff --git a/common/board_f.c b/common/board_f.c index 8efdb63..ab4242a 100644 --- a/common/board_f.c +++ b/common/board_f.c @@ -53,6 +53,7 @@ #include <os.h> #include <post.h> #include <spi.h> +#include <trace.h> #include <watchdog.h> #include <asm/errno.h> #include <asm/io.h> @@ -500,6 +501,18 @@ static int reserve_lcd(void) } #endif /* CONFIG_LCD */ +static int reserve_trace(void) +{ +#ifdef CONFIG_TRACE + gd->relocaddr -= CONFIG_TRACE_BUFFER_SIZE; + gd->trace_buff = map_sysmem(gd->relocaddr, CONFIG_TRACE_BUFFER_SIZE); + debug("Reserving %dk for trace data at: %08lx\n", + CONFIG_TRACE_BUFFER_SIZE >> 10, gd->relocaddr); +#endif + + return 0; +} + #if defined(CONFIG_VIDEO) && (!defined(CONFIG_PPC) || defined(CONFIG_8xx)) \ && !defined(CONFIG_ARM) && !defined(CONFIG_X86) static int reserve_video(void) @@ -818,8 +831,9 @@ static init_fnc_t init_sequence_f[] = { #ifdef CONFIG_SANDBOX setup_ram_buf, #endif - setup_fdt, setup_mon_len, + setup_fdt, + trace_early_init, #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx) /* TODO: can this go into arch_cpu_init()? */ probecpu, @@ -963,6 +977,7 @@ static init_fnc_t init_sequence_f[] = { #ifdef CONFIG_LCD reserve_lcd, #endif + reserve_trace, /* TODO: Why the dependency on CONFIG_8xx? */ #if defined(CONFIG_VIDEO) && (!defined(CONFIG_PPC) || defined(CONFIG_8xx)) \ && !defined(CONFIG_ARM) && !defined(CONFIG_X86) 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 @@ static int initr_secondary_cpu(void) 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 @@ static int run_main_loop(void) * 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 |