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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* (C) Copyright 2008
* Marvell Semiconductor <www.marvell.com>
* Written-by: Prafulla Wadaskar <prafulla@marvell.com>
*/
#ifndef _KWBIMAGE_H_
#define _KWBIMAGE_H_
#include <compiler.h>
#include <stdint.h>
#ifdef __GNUC__
#define __packed __attribute((packed))
#else
#define __packed
#endif
#define KWBIMAGE_MAX_CONFIG ((0x1dc - 0x20)/sizeof(struct reg_config))
#define MAX_TEMPBUF_LEN 32
/* NAND ECC Mode */
#define IBR_HDR_ECC_DEFAULT 0x00
#define IBR_HDR_ECC_FORCED_HAMMING 0x01
#define IBR_HDR_ECC_FORCED_RS 0x02
#define IBR_HDR_ECC_DISABLED 0x03
/* Boot Type - block ID */
#define IBR_HDR_I2C_ID 0x4D
#define IBR_HDR_SPI_ID 0x5A
#define IBR_HDR_NAND_ID 0x8B
#define IBR_HDR_SATA_ID 0x78
#define IBR_HDR_PEX_ID 0x9C
#define IBR_HDR_UART_ID 0x69
#define IBR_HDR_SDIO_ID 0xAE
#define IBR_DEF_ATTRIB 0x00
/* Structure of the main header, version 0 (Kirkwood, Dove) */
struct main_hdr_v0 {
uint8_t blockid; /* 0x0 */
uint8_t nandeccmode; /* 0x1 */
uint16_t nandpagesize; /* 0x2-0x3 */
uint32_t blocksize; /* 0x4-0x7 */
uint8_t version; /* 0x8 */
uint8_t rsvd1[3]; /* 0x9-0xB */
uint32_t srcaddr; /* 0xC-0xF */
uint32_t destaddr; /* 0x10-0x13 */
uint32_t execaddr; /* 0x14-0x17 */
uint8_t satapiomode; /* 0x18 */
uint8_t rsvd3; /* 0x19 */
uint16_t ddrinitdelay; /* 0x1A-0x1B */
uint16_t rsvd2; /* 0x1C-0x1D */
uint8_t ext; /* 0x1E */
uint8_t checksum; /* 0x1F */
} __packed;
struct ext_hdr_v0_reg {
uint32_t raddr;
uint32_t rdata;
} __packed;
#define EXT_HDR_V0_REG_COUNT ((0x1dc - 0x20) / sizeof(struct ext_hdr_v0_reg))
struct ext_hdr_v0 {
uint32_t offset;
uint8_t reserved[0x20 - sizeof(uint32_t)];
struct ext_hdr_v0_reg rcfg[EXT_HDR_V0_REG_COUNT];
uint8_t reserved2[7];
uint8_t checksum;
} __packed;
/* Structure of the main header, version 1 (Armada 370/XP/375/38x/39x) */
struct main_hdr_v1 {
uint8_t blockid; /* 0x0 */
uint8_t flags; /* 0x1 */
uint16_t nandpagesize; /* 0x2-0x3 */
uint32_t blocksize; /* 0x4-0x7 */
uint8_t version; /* 0x8 */
uint8_t headersz_msb; /* 0x9 */
uint16_t headersz_lsb; /* 0xA-0xB */
uint32_t srcaddr; /* 0xC-0xF */
uint32_t destaddr; /* 0x10-0x13 */
uint32_t execaddr; /* 0x14-0x17 */
uint8_t options; /* 0x18 */
uint8_t nandblocksize; /* 0x19 */
uint8_t nandbadblklocation; /* 0x1A */
uint8_t reserved4; /* 0x1B */
uint16_t reserved5; /* 0x1C-0x1D */
uint8_t ext; /* 0x1E */
uint8_t checksum; /* 0x1F */
} __packed;
/*
* Main header options
*/
#define MAIN_HDR_V1_OPT_BAUD_DEFAULT 0
#define MAIN_HDR_V1_OPT_BAUD_2400 0x1
#define MAIN_HDR_V1_OPT_BAUD_4800 0x2
#define MAIN_HDR_V1_OPT_BAUD_9600 0x3
#define MAIN_HDR_V1_OPT_BAUD_19200 0x4
#define MAIN_HDR_V1_OPT_BAUD_38400 0x5
#define MAIN_HDR_V1_OPT_BAUD_57600 0x6
#define MAIN_HDR_V1_OPT_BAUD_115200 0x7
/*
* Header for the optional headers, version 1 (Armada 370/XP/375/38x/39x)
*/
struct opt_hdr_v1 {
uint8_t headertype;
uint8_t headersz_msb;
uint16_t headersz_lsb;
char data[0];
} __packed;
/*
* Public Key data in DER format
*/
struct pubkey_der_v1 {
uint8_t key[524];
} __packed;
/*
* Signature (RSA 2048)
*/
struct sig_v1 {
uint8_t sig[256];
} __packed;
/*
* Structure of secure header (Armada XP/375/38x/39x)
*/
struct secure_hdr_v1 {
uint8_t headertype; /* 0x0 */
uint8_t headersz_msb; /* 0x1 */
uint16_t headersz_lsb; /* 0x2 - 0x3 */
uint32_t reserved1; /* 0x4 - 0x7 */
struct pubkey_der_v1 kak; /* 0x8 - 0x213 */
uint8_t jtag_delay; /* 0x214 */
uint8_t reserved2; /* 0x215 */
uint16_t reserved3; /* 0x216 - 0x217 */
uint32_t boxid; /* 0x218 - 0x21B */
uint32_t flashid; /* 0x21C - 0x21F */
struct sig_v1 hdrsig; /* 0x220 - 0x31F */
struct sig_v1 imgsig; /* 0x320 - 0x41F */
struct pubkey_der_v1 csk[16]; /* 0x420 - 0x24DF */
struct sig_v1 csksig; /* 0x24E0 - 0x25DF */
uint8_t next; /* 0x25E0 */
uint8_t reserved4; /* 0x25E1 */
uint16_t reserved5; /* 0x25E2 - 0x25E3 */
} __packed;
/*
* Structure of register set
*/
struct register_set_hdr_v1 {
uint8_t headertype; /* 0x0 */
uint8_t headersz_msb; /* 0x1 */
uint16_t headersz_lsb; /* 0x2 - 0x3 */
union {
struct {
uint32_t address; /* 0x4+8*N - 0x7+8*N */
uint32_t value; /* 0x8+8*N - 0xB+8*N */
} __packed entry;
struct {
uint8_t next; /* 0xC+8*N */
uint8_t delay; /* 0xD+8*N */
uint16_t reserved; /* 0xE+8*N - 0xF+8*N */
} __packed last_entry;
} data[];
} __packed;
/*
* Value 0 in register_set_hdr_v1 delay field is special.
* Instead of delay it setup SDRAM Controller.
*/
#define REGISTER_SET_HDR_OPT_DELAY_SDRAM_SETUP 0
#define REGISTER_SET_HDR_OPT_DELAY_MS(val) ((val) ?: 1)
/*
* Various values for the opt_hdr_v1->headertype field, describing the
* different types of optional headers. The "secure" header contains
* informations related to secure boot (encryption keys, etc.). The
* "binary" header contains ARM binary code to be executed prior to
* executing the main payload (usually the bootloader). This is
* typically used to execute DDR3 training code. The "register" header
* allows to describe a set of (address, value) tuples that are
* generally used to configure the DRAM controller.
*/
#define OPT_HDR_V1_SECURE_TYPE 0x1
#define OPT_HDR_V1_BINARY_TYPE 0x2
#define OPT_HDR_V1_REGISTER_TYPE 0x3
/*
* Byte 8 of the image header contains the version number. In the v0
* header, byte 8 was reserved, and always set to 0. In the v1 header,
* byte 8 has been changed to a proper field, set to 1.
*/
static inline unsigned int kwbimage_version(const void *header)
{
const unsigned char *ptr = header;
return ptr[8];
}
static inline size_t kwbheader_size(const void *header)
{
if (kwbimage_version(header) == 0) {
const struct main_hdr_v0 *hdr = header;
return sizeof(*hdr) +
(hdr->ext & 0x1) ? sizeof(struct ext_hdr_v0) : 0;
} else {
const struct main_hdr_v1 *hdr = header;
return (hdr->headersz_msb << 16) |
le16_to_cpu(hdr->headersz_lsb);
}
}
static inline size_t kwbheader_size_for_csum(const void *header)
{
if (kwbimage_version(header) == 0)
return sizeof(struct main_hdr_v0);
else
return kwbheader_size(header);
}
static inline uint32_t opt_hdr_v1_size(const struct opt_hdr_v1 *ohdr)
{
return (ohdr->headersz_msb << 16) | le16_to_cpu(ohdr->headersz_lsb);
}
static inline int opt_hdr_v1_valid_size(const struct opt_hdr_v1 *ohdr,
const void *mhdr_end)
{
uint32_t ohdr_size;
if ((const void *)(ohdr + 1) > mhdr_end)
return 0;
ohdr_size = opt_hdr_v1_size(ohdr);
if (ohdr_size < 8 || (const void *)((const uint8_t *)ohdr + ohdr_size) > mhdr_end)
return 0;
return 1;
}
static inline struct opt_hdr_v1 *opt_hdr_v1_first(void *img) {
struct main_hdr_v1 *mhdr;
if (kwbimage_version(img) != 1)
return NULL;
mhdr = img;
if (mhdr->ext & 0x1)
return (struct opt_hdr_v1 *)(mhdr + 1);
else
return NULL;
}
static inline uint8_t *opt_hdr_v1_ext(struct opt_hdr_v1 *cur)
{
uint32_t size = opt_hdr_v1_size(cur);
return (uint8_t *)cur + size - 4;
}
static inline struct opt_hdr_v1 *_opt_hdr_v1_next(struct opt_hdr_v1 *cur)
{
return (struct opt_hdr_v1 *)((uint8_t *)cur + opt_hdr_v1_size(cur));
}
static inline struct opt_hdr_v1 *opt_hdr_v1_next(struct opt_hdr_v1 *cur)
{
if (*opt_hdr_v1_ext(cur) & 0x1)
return _opt_hdr_v1_next(cur);
else
return NULL;
}
#define for_each_opt_hdr_v1(ohdr, img) \
for ((ohdr) = opt_hdr_v1_first((img)); \
(ohdr) != NULL; \
(ohdr) = opt_hdr_v1_next((ohdr)))
#endif /* _KWBIMAGE_H_ */
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