92 lines
2.7 KiB
C
92 lines
2.7 KiB
C
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#include <arch/exception.h>
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#include <bootblock_common.h>
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#include <console/console.h>
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#include <delay.h>
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#include <pc80/mc146818rtc.h>
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#include <program_loading.h>
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#include <symbols.h>
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#include <timestamp.h>
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DECLARE_OPTIONAL_REGION(timestamp);
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__weak void bootblock_mainboard_early_init(void) { /* no-op */ }
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__weak void bootblock_soc_early_init(void) { /* do nothing */ }
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__weak void bootblock_soc_init(void) { /* do nothing */ }
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__weak void bootblock_mainboard_init(void) { /* do nothing */ }
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/*
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* This is a the same as the bootblock main(), with the difference that it does
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* not collect a timestamp. Instead it accepts the initial timestamp and
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* possibly additional timestamp entries as arguments. This can be used in cases
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* where earlier stamps are available. Note that this function is designed to be
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* entered from C code. This function assumes that the timer has already been
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* initialized, so it does not call init_timer().
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*/
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static void bootblock_main_with_timestamp(uint64_t base_timestamp,
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struct timestamp_entry *timestamps, size_t num_timestamps)
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{
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/* Initialize timestamps if we have TIMESTAMP region in memlayout.ld. */
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if (CONFIG(COLLECT_TIMESTAMPS) &&
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REGION_SIZE(timestamp) > 0) {
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int i;
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timestamp_init(base_timestamp);
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for (i = 0; i < num_timestamps; i++)
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timestamp_add(timestamps[i].entry_id,
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timestamps[i].entry_stamp);
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}
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timestamp_add_now(TS_START_BOOTBLOCK);
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bootblock_soc_early_init();
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bootblock_mainboard_early_init(); // ./src/lib/bootblock.c:__weak void bootblock_mainboard_early_init(void) { /* no-op */ }
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sanitize_cmos();
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cmos_post_init();
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if (CONFIG(BOOTBLOCK_CONSOLE)) {
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console_init();
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exception_init();
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}
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bootblock_soc_init(); // __weak void bootblock_soc_init(void) { /* do nothing */ }
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bootblock_mainboard_init();
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timestamp_add_now(TS_END_BOOTBLOCK);
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run_romstage();
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}
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void bootblock_main_with_basetime(uint64_t base_timestamp)
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{
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bootblock_main_with_timestamp(base_timestamp, NULL, 0);
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}
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void main(void)
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{
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uint64_t base_timestamp = 0;
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init_timer();
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if (CONFIG(COLLECT_TIMESTAMPS))
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base_timestamp = timestamp_get();
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bootblock_main_with_timestamp(base_timestamp, NULL, 0);
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}
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#if CONFIG(COMPRESS_BOOTBLOCK)
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/*
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* This is the bootblock entry point when it is run after a decompressor stage.
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* For non-decompressor builds, _start is generally defined in architecture-
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* specific assembly code. In decompressor builds that architecture
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* initialization code already ran in the decompressor, so the bootblock can
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* start straight into common code with a C environment.
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*/
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void _start(struct bootblock_arg *arg);
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void _start(struct bootblock_arg *arg)
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{
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bootblock_main_with_timestamp(arg->base_timestamp, arg->timestamps,
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arg->num_timestamps);
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}
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#endif
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