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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Driver interface derived from:
* /include/sandbox_host.h
* Copyright 2022 Google LLC
*
* Copyright 2023 Johan Jonker <jbx6244@gmail.com>
*/
#ifndef __RKMTD__
#define __RKMTD__
#include <part_efi.h>
#include <uuid.h>
#define LBA 64 + 512 + 33
#define RK_TAG 0xFCDC8C3B
#define NFC_SYS_DATA_SIZE 4
#define BLK_SIZE 2048
#define STEP_SIZE 1024
#define BUF_SIZE 512 * 512
struct nand_para_info {
u8 id_bytes;
u8 nand_id[6];
u8 vendor;
u8 die_per_chip;
u8 sec_per_page;
u16 page_per_blk;
u8 cell;
u8 plane_per_die;
u16 blk_per_plane;
u16 operation_opt;
u8 lsb_mode;
u8 read_retry_mode;
u8 ecc_bits;
u8 access_freq;
u8 opt_mode;
u8 die_gap;
u8 bad_block_mode;
u8 multi_plane_mode;
u8 slc_mode;
u8 reserved[5];
};
struct bootblk {
int blk;
int boot_size;
int offset;
};
struct rkmtd_dev {
struct udevice *dev;
struct blk_desc *desc;
char *label;
legacy_mbr *mbr;
gpt_header *gpt_h;
gpt_header *gpt_h2;
gpt_entry *gpt_e;
char *check;
char *idb;
char *str;
char uuid_part_str[UUID_STR_LEN + 1];
char uuid_disk_str[UUID_STR_LEN + 1];
char *datbuf;
char *oobbuf;
struct mtd_info *mtd;
struct nand_para_info *info;
u16 page_table[512];
u32 idb_need_write_back;
struct bootblk idblock[5];
u32 blk_counter;
u32 boot_blks;
u32 offset;
u32 boot_size;
u32 lsb_mode;
};
struct sector0 {
u32 magic;
u8 reserved[4];
u32 rc4_flag;
u16 boot_code1_offset;
u16 boot_code2_offset;
u8 reserved1[490];
u16 flash_data_size;
u16 flash_boot_size;
u8 reserved2[2];
} __packed;
/**
* rkmtd_rc4() - Rockchip specific RC4 Encryption Algorithm
*
* Encrypt Rockchip boot block header version 1 and data
*
* @buf: Pointer to data buffer
* @len: Data buffer size
*/
void rkmtd_rc4(u8 *buf, u32 len);
/**
* struct rkmtd_ops - operations supported by UCLASS_RKMTD
*/
struct rkmtd_ops {
/**
* @attach_mtd: - Attach a new rkmtd driver to the device structure
*
* @attach_mtd.dev: Device to update
* @attach_mtd.Returns: 0 if OK, -EEXIST if a driver is already attached,
* other -ve on other error
*/
int (*attach_mtd)(struct udevice *dev);
/**
* @detach_mtd: - Detach a rkmtd driver from the device structure
*
* @detach_mtd.dev: Device to detach from
* @detach_mtd.Returns: 0 if OK, -ENOENT if no driver is attached,
* other -ve on other error
*/
int (*detach_mtd)(struct udevice *dev);
};
#define rkmtd_get_ops(dev) ((struct rkmtd_ops *)(dev)->driver->ops)
/**
* rkmtd_get_cur_dev() - Get the current device
*
* Returns current device, or NULL if none
*/
struct udevice *rkmtd_get_cur_dev(void);
/**
* rkmtd_set_cur_dev() - Set the current device
*
* Sets the current device, or clears it if @dev is NULL
*
* @dev: Device to set as the current one
*/
void rkmtd_set_cur_dev(struct udevice *dev);
/**
* rkmtd_find_by_label() - Find a rkmtd device by label
*
* Searches all rkmtd devices to find one with the given label
*
* @label: Label to find
* Returns: associated device, or NULL if not found
*/
struct udevice *rkmtd_find_by_label(const char *label);
/**
* rkmtd_attach() - Attach a new rkmtd driver to the device structure
*
* @dev: Device to update
* Returns: 0 if OK, -EEXIST if a file is already attached, other -ve on
* other error
*/
int rkmtd_attach(struct udevice *dev);
/**
* rkmtd_detach() - Detach a rkmtd driver from the device structure
*
* @dev: Device to detach from
* Returns: 0 if OK, -ENOENT if no file is attached, other -ve on other
* error
*/
int rkmtd_detach(struct udevice *dev);
/**
* rkmtd_create_device() - Create a new rkmtd device
*
* Any existing device with the same label is removed and unbound first
*
* @label: Label of the attachment, e.g. "test1"
* @devp: Returns the device created, on success
* Returns: 0 if OK, -ve on error
*/
int rkmtd_create_device(const char *label, struct udevice **devp);
/**
* rkmtd_create_attach_mtd() - Create a new rkmtd device and attach driver
*
* @label: Label of the attachment, e.g. "test1"
* @devp: Returns the device created, on success
* Returns: 0 if OK, -ve on error
*/
int rkmtd_create_attach_mtd(const char *label, struct udevice **devp);
#endif /* __RKMTD__ */
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