mirror of
https://github.com/AsahiLinux/u-boot
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80201eccaa
Add rkmtd class and drivers to create a virtual block device to transfer Rockchip boot block data to and from NAND with block orientated tools like "ums" and "rockusb". Signed-off-by: Johan Jonker <jbx6244@gmail.com> Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
191 lines
4.1 KiB
C
191 lines
4.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Driver interface derived from:
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* /include/sandbox_host.h
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* Copyright 2022 Google LLC
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*
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* Copyright 2023 Johan Jonker <jbx6244@gmail.com>
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*/
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#ifndef __RKMTD__
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#define __RKMTD__
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#include <part_efi.h>
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#include <uuid.h>
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#define LBA 64 + 512 + 33
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#define RK_TAG 0xFCDC8C3B
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#define NFC_SYS_DATA_SIZE 4
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#define BLK_SIZE 2048
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#define STEP_SIZE 1024
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#define BUF_SIZE 512 * 512
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struct nand_para_info {
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u8 id_bytes;
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u8 nand_id[6];
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u8 vendor;
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u8 die_per_chip;
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u8 sec_per_page;
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u16 page_per_blk;
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u8 cell;
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u8 plane_per_die;
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u16 blk_per_plane;
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u16 operation_opt;
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u8 lsb_mode;
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u8 read_retry_mode;
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u8 ecc_bits;
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u8 access_freq;
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u8 opt_mode;
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u8 die_gap;
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u8 bad_block_mode;
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u8 multi_plane_mode;
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u8 slc_mode;
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u8 reserved[5];
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};
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struct bootblk {
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int blk;
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int boot_size;
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int offset;
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};
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struct rkmtd_dev {
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struct udevice *dev;
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struct blk_desc *desc;
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char *label;
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legacy_mbr *mbr;
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gpt_header *gpt_h;
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gpt_header *gpt_h2;
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gpt_entry *gpt_e;
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char *check;
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char *idb;
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char *str;
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char uuid_part_str[UUID_STR_LEN + 1];
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char uuid_disk_str[UUID_STR_LEN + 1];
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char *datbuf;
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char *oobbuf;
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struct mtd_info *mtd;
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struct nand_para_info *info;
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u16 page_table[512];
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u32 idb_need_write_back;
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struct bootblk idblock[5];
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u32 blk_counter;
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u32 boot_blks;
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u32 offset;
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u32 boot_size;
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u32 lsb_mode;
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};
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struct sector0 {
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u32 magic;
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u8 reserved[4];
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u32 rc4_flag;
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u16 boot_code1_offset;
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u16 boot_code2_offset;
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u8 reserved1[490];
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u16 flash_data_size;
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u16 flash_boot_size;
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u8 reserved2[2];
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} __packed;
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/**
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* rkmtd_rc4() - Rockchip specific RC4 Encryption Algorithm
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*
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* Encrypt Rockchip boot block header version 1 and data
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*
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* @buf: Pointer to data buffer
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* @len: Data buffer size
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*/
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void rkmtd_rc4(u8 *buf, u32 len);
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/**
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* struct rkmtd_ops - operations supported by UCLASS_RKMTD
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*/
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struct rkmtd_ops {
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/**
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* @attach_mtd: - Attach a new rkmtd driver to the device structure
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*
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* @attach_mtd.dev: Device to update
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* @attach_mtd.Returns: 0 if OK, -EEXIST if a driver is already attached,
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* other -ve on other error
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*/
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int (*attach_mtd)(struct udevice *dev);
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/**
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* @detach_mtd: - Detach a rkmtd driver from the device structure
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*
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* @detach_mtd.dev: Device to detach from
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* @detach_mtd.Returns: 0 if OK, -ENOENT if no driver is attached,
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* other -ve on other error
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*/
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int (*detach_mtd)(struct udevice *dev);
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};
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#define rkmtd_get_ops(dev) ((struct rkmtd_ops *)(dev)->driver->ops)
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/**
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* rkmtd_get_cur_dev() - Get the current device
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*
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* Returns current device, or NULL if none
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*/
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struct udevice *rkmtd_get_cur_dev(void);
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/**
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* rkmtd_set_cur_dev() - Set the current device
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*
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* Sets the current device, or clears it if @dev is NULL
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*
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* @dev: Device to set as the current one
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*/
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void rkmtd_set_cur_dev(struct udevice *dev);
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/**
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* rkmtd_find_by_label() - Find a rkmtd device by label
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*
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* Searches all rkmtd devices to find one with the given label
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*
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* @label: Label to find
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* Returns: associated device, or NULL if not found
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*/
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struct udevice *rkmtd_find_by_label(const char *label);
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/**
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* rkmtd_attach() - Attach a new rkmtd driver to the device structure
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*
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* @dev: Device to update
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* Returns: 0 if OK, -EEXIST if a file is already attached, other -ve on
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* other error
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*/
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int rkmtd_attach(struct udevice *dev);
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/**
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* rkmtd_detach() - Detach a rkmtd driver from the device structure
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*
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* @dev: Device to detach from
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* Returns: 0 if OK, -ENOENT if no file is attached, other -ve on other
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* error
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*/
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int rkmtd_detach(struct udevice *dev);
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/**
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* rkmtd_create_device() - Create a new rkmtd device
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*
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* Any existing device with the same label is removed and unbound first
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*
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* @label: Label of the attachment, e.g. "test1"
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* @devp: Returns the device created, on success
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* Returns: 0 if OK, -ve on error
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*/
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int rkmtd_create_device(const char *label, struct udevice **devp);
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/**
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* rkmtd_create_attach_mtd() - Create a new rkmtd device and attach driver
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*
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* @label: Label of the attachment, e.g. "test1"
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* @devp: Returns the device created, on success
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* Returns: 0 if OK, -ve on error
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*/
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int rkmtd_create_attach_mtd(const char *label, struct udevice **devp);
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#endif /* __RKMTD__ */
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