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-rw-r--r--src/arch/x86/include/bootblock_common.h4
-rw-r--r--src/console/Kconfig8
-rw-r--r--src/console/post.c34
-rw-r--r--src/include/console/console.h5
-rw-r--r--src/include/elog.h1
-rw-r--r--src/include/pc80/mc146818rtc.h9
6 files changed, 61 insertions, 0 deletions
diff --git a/src/arch/x86/include/bootblock_common.h b/src/arch/x86/include/bootblock_common.h
index 11fb230b58..4926086bce 100644
--- a/src/arch/x86/include/bootblock_common.h
+++ b/src/arch/x86/include/bootblock_common.h
@@ -65,6 +65,10 @@ static void cmos_post_init(void)
/* Initialize to zero */
cmos_write(0, CMOS_POST_BANK_0_OFFSET);
cmos_write(0, CMOS_POST_BANK_1_OFFSET);
+#if CONFIG_CMOS_POST_EXTRA
+ cmos_write32(CMOS_POST_BANK_0_EXTRA, 0);
+ cmos_write32(CMOS_POST_BANK_1_EXTRA, 0);
+#endif
}
cmos_write(magic, CMOS_POST_BANK_OFFSET);
diff --git a/src/console/Kconfig b/src/console/Kconfig
index d209325925..c23f862326 100644
--- a/src/console/Kconfig
+++ b/src/console/Kconfig
@@ -413,6 +413,14 @@ config CMOS_POST_OFFSET
If CONFIG_HAVE_OPTION_TABLE is enabled then it will use the value
defined in the mainboard option table.
+config CMOS_POST_EXTRA
+ bool "Store extra logging info into CMOS"
+ depends on CMOS_POST
+ default n
+ help
+ This will enable extra logging of work that happens between post
+ codes into CMOS for debug. This uses an additional 8 bytes of CMOS.
+
config IO_POST
bool "Send POST codes to an IO port"
depends on PC80_SYSTEM
diff --git a/src/console/post.c b/src/console/post.c
index 11c631d4dc..74886834ce 100644
--- a/src/console/post.c
+++ b/src/console/post.c
@@ -25,6 +25,9 @@
#include <pc80/mc146818rtc.h>
#include <smp/spinlock.h>
#endif
+#if CONFIG_CMOS_POST_EXTRA
+#include <device/device.h>
+#endif
#include <elog.h>
/* Write POST information */
@@ -51,6 +54,9 @@ DECLARE_SPIN_LOCK(cmos_post_lock)
void cmos_post_log(void)
{
u8 code = 0;
+#if CONFIG_CMOS_POST_EXTRA
+ u32 extra = 0;
+#endif
spin_lock(&cmos_post_lock);
@@ -58,9 +64,15 @@ void cmos_post_log(void)
switch (cmos_read(CMOS_POST_BANK_OFFSET)) {
case CMOS_POST_BANK_0_MAGIC:
code = cmos_read(CMOS_POST_BANK_1_OFFSET);
+#if CONFIG_CMOS_POST_EXTRA
+ extra = cmos_read32(CMOS_POST_BANK_1_EXTRA);
+#endif
break;
case CMOS_POST_BANK_1_MAGIC:
code = cmos_read(CMOS_POST_BANK_0_OFFSET);
+#if CONFIG_CMOS_POST_EXTRA
+ extra = cmos_read32(CMOS_POST_BANK_0_EXTRA);
+#endif
break;
}
@@ -78,9 +90,31 @@ void cmos_post_log(void)
"in previous boot: 0x%02x\n", code);
#if CONFIG_ELOG
elog_add_event_word(ELOG_TYPE_LAST_POST_CODE, code);
+#if CONFIG_CMOS_POST_EXTRA
+ if (extra)
+ elog_add_event_dword(ELOG_TYPE_POST_EXTRA, extra);
+#endif
#endif
}
}
+
+#if CONFIG_CMOS_POST_EXTRA
+void post_log_extra(u32 value)
+{
+ spin_lock(&cmos_post_lock);
+
+ switch (cmos_read(CMOS_POST_BANK_OFFSET)) {
+ case CMOS_POST_BANK_0_MAGIC:
+ cmos_write32(CMOS_POST_BANK_0_EXTRA, value);
+ break;
+ case CMOS_POST_BANK_1_MAGIC:
+ cmos_write32(CMOS_POST_BANK_1_EXTRA, value);
+ break;
+ }
+
+ spin_unlock(&cmos_post_lock);
+}
+#endif /* CONFIG_CMOS_POST_EXTRA */
#endif /* !__PRE_RAM__ */
static void cmos_post_code(u8 value)
diff --git a/src/include/console/console.h b/src/include/console/console.h
index 9f347adea3..e6962cc69d 100644
--- a/src/include/console/console.h
+++ b/src/include/console/console.h
@@ -72,6 +72,11 @@ void console_init(void);
void console_tx_byte(unsigned char byte);
void console_tx_flush(void);
void post_code(u8 value);
+#if CONFIG_CMOS_POST_EXTRA
+void post_log_extra(u32 value);
+#else
+#define post_log_extra(x) do {} while (0)
+#endif
/* this function is weak and can be overridden by a mainboard function. */
void mainboard_post(u8 value);
void __attribute__ ((noreturn)) die(const char *msg);
diff --git a/src/include/elog.h b/src/include/elog.h
index b813a10060..f9b5d53941 100644
--- a/src/include/elog.h
+++ b/src/include/elog.h
@@ -140,6 +140,7 @@ struct elog_event_data_me_extended {
/* Last post code from previous boot */
#define ELOG_TYPE_LAST_POST_CODE 0xa3
+#define ELOG_TYPE_POST_EXTRA 0xa6
/* EC Shutdown Reason */
#define ELOG_TYPE_EC_SHUTDOWN 0xa5
diff --git a/src/include/pc80/mc146818rtc.h b/src/include/pc80/mc146818rtc.h
index ef48a361d3..b0e9f2cc03 100644
--- a/src/include/pc80/mc146818rtc.h
+++ b/src/include/pc80/mc146818rtc.h
@@ -202,11 +202,20 @@ static inline enum cb_err get_option(void *dest __attribute__((unused)),
# endif
#endif
+/*
+ * 0 = Bank Select Magic
+ * 1 = Bank 0 POST
+ * 2 = Bank 1 POST
+ * 3-6 = BANK 0 Extra log
+ * 7-10 = BANK 1 Extra log
+ */
#define CMOS_POST_BANK_OFFSET (CMOS_POST_OFFSET)
#define CMOS_POST_BANK_0_MAGIC 0x80
#define CMOS_POST_BANK_0_OFFSET (CMOS_POST_OFFSET + 1)
+#define CMOS_POST_BANK_0_EXTRA (CMOS_POST_OFFSET + 3)
#define CMOS_POST_BANK_1_MAGIC 0x81
#define CMOS_POST_BANK_1_OFFSET (CMOS_POST_OFFSET + 2)
+#define CMOS_POST_BANK_1_EXTRA (CMOS_POST_OFFSET + 7)
void cmos_post_log(void);
#endif /* CONFIG_CMOS_POST */