mirror of
https://github.com/hardkernel/kernel_common_drivers.git
synced 2026-06-25 12:03:48 +09:00
Bichao Zheng
20f5935b04
PD#SWPL-124386 Problem: 1. Reduce bootloader area Solution: 1. remove ddrfip area 2. Reduce RSV to 14 blocks. 3. Reduce backup of BL2E BL2X DEVFIP to 2 4. Bootloader area reduced from 0x1600000 to 0x940000 bytes Verify: s4 Change-Id: I97187d33f211c7a5ab60e4cda2b369defb8363dd Signed-off-by: Bichao Zheng <bichao.zheng@amlogic.com>
125 lines
3.0 KiB
C
125 lines
3.0 KiB
C
/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
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/*
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* Copyright (c) 2019 Amlogic, Inc. All rights reserved.
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*/
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#ifndef __MESON_RSV_H_
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#define __MESON_RSV_H_
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#define CONFIG_ENV_SIZE (64 * 1024U)
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#define DEFAULT_NAND_RSV_BLOCK_NUM 48
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#define DEFAULT_NAND_GAP_BLOCK_NUM 4
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#define DEFAULT_NAND_BBT_BLOCK_NUM 4
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#define DEFAULT_NAND_ENV_BLOCK_NUM 8
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#define DEFAULT_NAND_KEY_BLOCK_NUM 8
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#define DEFAULT_NAND_DTB_BLOCK_NUM 4
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#define DEFAULT_NAND_DDR_BLOCK_NUM 2
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#define BBT_NAND_MAGIC "nbbt"
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#define ENV_NAND_MAGIC "nenv"
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#define KEY_NAND_MAGIC "nkey"
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#define SEC_NAND_MAGIC "nsec"
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#define DTB_NAND_MAGIC "ndtb"
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#define NAND_BOOT_NAME "bootloader"
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#define NAND_NORMAL_NAME "nandnormal"
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/*define abnormal state for reserved area*/
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#define POWER_ABNORMAL_FLAG 0x01
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#define ECC_ABNORMAL_FLAG 0x02
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enum meson_rsv_blk_cnt {
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NAND_RSV_INDEX = 0,
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NAND_GAP_INDEX,
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NAND_BBT_INDEX,
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NAND_ENV_INDEX,
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NAND_KEY_INDEX,
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NAND_DTB_INDEX,
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NAND_RSV_END_INDEX
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};
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struct meson_rsv_block_t {
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char para_rsv_name[32];
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u32 block_cnt;
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u32 index;
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};
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struct meson_rsv_info_t {
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struct mtd_info *mtd;
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struct valid_node_t *valid_node;
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struct free_node_t *free_node;
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unsigned int start_block;
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unsigned int end_block;
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unsigned int size;
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char name[8];
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u_char valid;
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u_char init;
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void *handler;
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int (*read)(u_char *dest, size_t size);
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int (*write)(u_char *src, size_t size);
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};
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struct valid_node_t {
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s16 ec;
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s16 phy_blk_addr;
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s16 phy_page_addr;
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int timestamp;
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s16 status;
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};
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struct free_node_t {
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unsigned int index;
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s16 ec;
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s16 phy_blk_addr;
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int dirty_flag;
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struct free_node_t *next;
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};
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struct oobinfo_t {
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char name[4];//4
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s16 ec;//2
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unsigned timestamp:15;
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unsigned status_page:1;
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};
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struct meson_rsv_handler_t {
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struct mtd_info *mtd;
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unsigned long long freenodebitmask;
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struct free_node_t *free_node[DEFAULT_NAND_RSV_BLOCK_NUM];
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struct meson_rsv_info_t *bbt;
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struct meson_rsv_info_t *env;
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struct meson_rsv_info_t *key;
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struct meson_rsv_info_t *dtb;
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void *priv;
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};
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int meson_rsv_key_read(u_char *dest, size_t size);
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int meson_rsv_key_write(u_char *source, size_t size);
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int meson_rsv_erase_protect(struct meson_rsv_handler_t *handler,
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uint32_t block_addr);
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#include<linux/cdev.h>
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#define DTB_CDEV_NAME "dtb"
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#define ENV_CDEV_NAME "nand_env"
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struct meson_rsv_user_t {
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struct meson_rsv_info_t *info;
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dev_t devt;
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struct cdev cdev;
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struct device *dev;
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struct class *cls;
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/* in case crash */
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struct mutex lock;
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};
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void meson_rsv_prase_parameter_from_dtb(struct mtd_info *mtd);
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int meson_rsv_register_cdev(struct meson_rsv_info_t *info, char *name);
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int meson_rsv_register_unifykey(struct meson_rsv_info_t *key);
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int meson_rsv_bbt_write(u_char *source, size_t size);
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int meson_rsv_init(struct mtd_info *mtd, struct meson_rsv_handler_t *handler);
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int meson_rsv_check(struct meson_rsv_info_t *rsv_info);
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int meson_rsv_scan(struct meson_rsv_info_t *rsv_info);
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int meson_rsv_read(struct meson_rsv_info_t *rsv_info, u_char *buf);
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u32 meson_rsv_get_block_cnt(enum meson_rsv_blk_cnt name);
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#endif/* __MESON_RSV_H_ */
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