#ifndef _BOOTSTAGE_H
#define _BOOTSTAGE_H
+/* The number of boot stage records available for the user */
+#ifndef CONFIG_BOOTSTAGE_USER_COUNT
+#define CONFIG_BOOTSTAGE_USER_COUNT 20
+#endif
+
+/* Flags for each bootstage record */
+enum bootstage_flags {
+ BOOTSTAGEF_ERROR = 1 << 0, /* Error record */
+ BOOTSTAGEF_ALLOC = 1 << 1, /* Allocate an id */
+};
+
/*
* A list of boot stages that we know about. Each of these indicates the
* state that we are at, and the action that we are about to perform. For
BOOTSTAGE_ID_NAND_FIT_READ = 150,
BOOTSTAGE_ID_NAND_FIT_READ_OK,
+
+ /*
+ * These boot stages are new, higher level, and not directly related
+ * to the old boot progress numbers. They are useful for recording
+ * rough boot timing information.
+ */
+ BOOTSTAGE_ID_AWAKE,
+ BOOTSTAGE_ID_START_SPL,
+ BOOTSTAGE_ID_START_UBOOT_F,
+ BOOTSTAGE_ID_START_UBOOT_R,
+ BOOTSTAGE_ID_USB_START,
+ BOOTSTAGE_ID_ETH_START,
+ BOOTSTAGE_ID_BOOTP_START,
+ BOOTSTAGE_ID_BOOTP_STOP,
+ BOOTSTAGE_ID_BOOTM_START,
+ BOOTSTAGE_ID_BOOTM_HANDOFF,
+ BOOTSTAGE_ID_MAIN_LOOP,
+ BOOTSTAGE_KERNELREAD_START,
+ BOOTSTAGE_KERNELREAD_STOP,
+ BOOTSTAGE_ID_BOARD_INIT,
+ BOOTSTAGE_ID_BOARD_INIT_DONE,
+
+ BOOTSTAGE_ID_CPU_AWAKE,
+ BOOTSTAGE_ID_MAIN_CPU_AWAKE,
+ BOOTSTAGE_ID_MAIN_CPU_READY,
+
+ BOOTSTAGE_ID_ACCUM_LCD,
+
+ /* a few spare for the user, from here */
+ BOOTSTAGE_ID_USER,
+ BOOTSTAGE_ID_COUNT = BOOTSTAGE_ID_USER + CONFIG_BOOTSTAGE_USER_COUNT,
+ BOOTSTAGE_ID_ALLOC,
};
+/*
+ * Return the time since boot in microseconds, This is needed for bootstage
+ * and should be defined in CPU- or board-specific code. If undefined then
+ * millisecond resolution will be used (the standard get_timer()).
+ */
+ulong timer_get_boot_us(void);
+
+#ifndef CONFIG_SPL_BUILD
/*
* Board code can implement show_boot_progress() if needed.
*
* has occurred.
*/
void show_boot_progress(int val);
+#else
+#define show_boot_progress(val) do {} while (0)
+#endif
-#ifdef CONFIG_BOOTSTAGE
+#if defined(CONFIG_BOOTSTAGE) && !defined(CONFIG_SPL_BUILD)
/* This is the full bootstage implementation */
+/**
+ * Add a new bootstage record
+ *
+ * @param id Bootstage ID to use (ignored if flags & BOOTSTAGEF_ALLOC)
+ * @param name Name of record, or NULL for none
+ * @param flags Flags (BOOTSTAGEF_...)
+ * @param mark Time to record in this record, in microseconds
+ */
+ulong bootstage_add_record(enum bootstage_id id, const char *name,
+ int flags, ulong mark);
+
/*
* Mark a time stamp for the current boot stage.
*/
ulong bootstage_error(enum bootstage_id id);
+ulong bootstage_mark_name(enum bootstage_id id, const char *name);
+
+/**
+ * Mark the start of a bootstage activity. The end will be marked later with
+ * bootstage_accum() and at that point we accumulate the time taken. Calling
+ * this function turns the given id into a accumulator rather than and
+ * absolute mark in time. Accumulators record the total amount of time spent
+ * in an activty during boot.
+ *
+ * @param id Bootstage id to record this timestamp against
+ * @param name Textual name to display for this id in the report (maybe NULL)
+ * @return start timestamp in microseconds
+ */
+uint32_t bootstage_start(enum bootstage_id id, const char *name);
+
+/**
+ * Mark the end of a bootstage activity
+ *
+ * After previously marking the start of an activity with bootstage_start(),
+ * call this function to mark the end. You can call these functions in pairs
+ * as many times as you like.
+ *
+ * @param id Bootstage id to record this timestamp against
+ * @return time spent in this iteration of the activity (i.e. the time now
+ * less the start time recorded in the last bootstage_start() call
+ * with this id.
+ */
+uint32_t bootstage_accum(enum bootstage_id id);
+
+/* Print a report about boot time */
+void bootstage_report(void);
+
+/**
+ * Add bootstage information to the device tree
+ *
+ * @return 0 if ok, -ve on error
+ */
+int bootstage_fdt_add_report(void);
+
+/*
+ * Stash bootstage data into memory
+ *
+ * @param base Base address of memory buffer
+ * @param size Size of memory buffer
+ * @return 0 if stashed ok, -1 if out of space
+ */
+int bootstage_stash(void *base, int size);
+
+/**
+ * Read bootstage data from memory
+ *
+ * Bootstage data is read from memory and placed in the bootstage table
+ * in the user records.
+ *
+ * @param base Base address of memory buffer
+ * @param size Size of memory buffer (-1 if unknown)
+ * @return 0 if unstashed ok, -1 if bootstage info not found, or out of space
+ */
+int bootstage_unstash(void *base, int size);
+
#else
/*
* This is a dummy implementation which just calls show_boot_progress(),
return 0;
}
+static inline ulong bootstage_mark_name(enum bootstage_id id, const char *name)
+{
+ return 0;
+}
+
+static inline int bootstage_stash(void *base, int size)
+{
+ return 0; /* Pretend to succeed */
+}
+
+static inline int bootstage_unstash(void *base, int size)
+{
+ return 0; /* Pretend to succeed */
+}
#endif /* CONFIG_BOOTSTAGE */
#endif