mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-06 21:24:29 +00:00
e35b6497f4
It is possible to boot U-Boot for chromebook_coral either 'bare metal' or from coreboot. In the latter case we want to provide access to the coreboot sysinfo tables. Move the definitions into a file available to any x86 board. Signed-off-by: Simon Glass <sjg@chromium.org>
86 lines
1.7 KiB
C
86 lines
1.7 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2011 The ChromiumOS Authors. All rights reserved.
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*
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* Modified from the coreboot version
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*/
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#include <common.h>
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#include <bootstage.h>
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#include <asm/arch/timestamp.h>
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#include <asm/cb_sysinfo.h>
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#include <linux/compiler.h>
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struct timestamp_entry {
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uint32_t entry_id;
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uint64_t entry_stamp;
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} __packed;
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struct timestamp_table {
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uint64_t base_time;
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uint32_t max_entries;
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uint32_t num_entries;
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struct timestamp_entry entries[0]; /* Variable number of entries */
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} __packed;
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static struct timestamp_table *ts_table __attribute__((section(".data")));
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void timestamp_init(void)
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{
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timestamp_add_now(TS_U_BOOT_INITTED);
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}
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void timestamp_add(enum timestamp_id id, uint64_t ts_time)
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{
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struct timestamp_entry *tse;
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if (!ts_table || (ts_table->num_entries == ts_table->max_entries))
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return;
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tse = &ts_table->entries[ts_table->num_entries++];
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tse->entry_id = id;
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tse->entry_stamp = ts_time - ts_table->base_time;
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}
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void timestamp_add_now(enum timestamp_id id)
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{
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timestamp_add(id, rdtsc());
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}
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int timestamp_add_to_bootstage(void)
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{
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uint i;
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if (!ts_table)
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return -1;
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for (i = 0; i < ts_table->num_entries; i++) {
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struct timestamp_entry *tse = &ts_table->entries[i];
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const char *name = NULL;
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switch (tse->entry_id) {
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case TS_START_ROMSTAGE:
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name = "start-romstage";
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break;
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case TS_BEFORE_INITRAM:
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name = "before-initram";
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break;
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case TS_DEVICE_INITIALIZE:
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name = "device-initialize";
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break;
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case TS_DEVICE_DONE:
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name = "device-done";
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break;
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case TS_SELFBOOT_JUMP:
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name = "selfboot-jump";
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break;
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}
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if (name) {
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bootstage_add_record(0, name, BOOTSTAGEF_ALLOC,
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tse->entry_stamp /
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get_tbclk_mhz());
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}
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}
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return 0;
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}
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