118 lines
2.8 KiB
C
118 lines
2.8 KiB
C
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/*
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* Copyright (C) 2015 MediaTek Inc.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef __LOG_STORE_H__
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#define __LOG_STORE_H__
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#include <linux/types.h>
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#define SRAM_HEADER_SIG (0xabcd1234)
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#define DRAM_HEADER_SIG (0x5678ef90)
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#define LOG_STORE_SIG (0xcdab3412)
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#define LOG_EMMC_SIG 0x785690ef
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#define MAX_DRAM_COUNT 2
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#define LOG_STORE_SIZE 0x40000 /* DRAM buff 256KB*/
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/* log flag */
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#define BUFF_VALIE 0x01
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#define CAN_FREE 0x02
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#define NEED_SAVE_TO_EMMC 0x04
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#define RING_BUFF 0x08
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/* ring buf, if buf_full, buf_point is the start of the buf, */
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/* else buf_point is the buf end, other buf is not used */
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#define BUFF_FULL 0x10 /* buf is full */
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/* array buf type, buf_point is the used buf end */
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#define ARRAY_BUFF 0X20
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#define BUFF_ALLOC_ERROR 0X40
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#define BUFF_ERROR 0x80
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#define BUFF_NOT_READY 0x100
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#define BUFF_READY 0x200
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/* pl or lk can printk the early printk information to uart cable */
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#define BUFF_EARLY_PRINTK 0x400
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#define LOG_PL_LK 0x0 /* Preloader and lk log buff */
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/* total 32 bytes <= u32(4 bytes) * 8 = 32 bytes */
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struct pl_lk_log {
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u32 sig; // default 0xabcd1234
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u32 buff_size; // total buf size
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u32 off_pl; // pl offset, sizeof(struct pl_lk_log)
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u32 sz_pl; // preloader size
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u32 pl_flag; // pl log flag
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u32 off_lk; // lk offset, sizeof((struct pl_lk_log) + sz_pl
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u32 sz_lk; // lk log size
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u32 lk_flag; // lk log flag
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};
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/* total 40 bytes <= u32(4 bytes) * 10 = 40 bytes */
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struct dram_buf_header {
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u32 sig;
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u32 flag;
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u32 buf_addr;
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u32 buf_size;
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u32 buf_offsize;
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u32 buf_point;
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u32 klog_addr;
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u32 klog_size;
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u32 atf_log_addr;
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u32 atf_log_len;
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};
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/* total 256 bytes */
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struct sram_log_header {
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u32 sig;
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u32 reboot_count;
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u32 save_to_emmc;
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struct dram_buf_header dram_buf; // 40 bytes
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struct pl_lk_log dram_curlog_header; // 32 bytes
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u32 reserve[43]; // reserve 43 * 4 char size
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};
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/* emmc last block struct */
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struct log_emmc_header {
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u32 sig;
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u32 offset;
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u32 uart_flag;
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u32 reserve[10];
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};
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#ifdef CONFIG_MTK_DRAM_LOG_STORE
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void log_store_bootup(void);
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void store_log_to_emmc_enable(bool value);
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void disable_early_log(void);
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void log_store_to_emmc(void);
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#else
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static inline void log_store_bootup(void)
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{
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}
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static inline void store_log_to_emmc_enable(bool value)
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{
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}
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static inline void disable_early_log(void)
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{
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}
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static inline void log_store_to_emmc(void)
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{
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}
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#endif
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#endif
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