/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* (C) Copyright 2018 Rockchip Electronics Co., Ltd
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*
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*/
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#ifndef __RK_ATAGS_H_
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#define __RK_ATAGS_H_
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/* Tag magic */
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#define ATAG_CORE 0x54410001
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#define ATAG_NONE 0x00000000
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#define ATAG_SERIAL 0x54410050
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#define ATAG_BOOTDEV 0x54410051
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#define ATAG_DDR_MEM 0x54410052
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#define ATAG_TOS_MEM 0x54410053
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#define ATAG_RAM_PARTITION 0x54410054
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#define ATAG_ATF_MEM 0x54410055
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#define ATAG_PUB_KEY 0x54410056
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#define ATAG_SOC_INFO 0x54410057
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#define ATAG_BOOT1_PARAM 0x54410058
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#define ATAG_PSTORE 0x54410059
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#define ATAG_FWVER 0x5441005a
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#define ATAG_MAX 0x544100ff
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/* Tag size and offset */
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#define ATAGS_SIZE (0x2000) /* 8K */
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#define ATAGS_OFFSET (0x200000 - ATAGS_SIZE)/* [2M-8K, 2M] */
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/* Tag sdram position!! */
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#define ATAGS_PHYS_BASE (CONFIG_SYS_SDRAM_BASE + ATAGS_OFFSET)
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#ifndef ATAGS_PHYS_BASE
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"ERROR: ATAGS_PHYS_BASE is not defined!!"
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#endif
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/* tag_bootdev.devtype */
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#define BOOT_TYPE_UNKNOWN 0
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#define BOOT_TYPE_NAND (1 << 0)
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#define BOOT_TYPE_EMMC (1 << 1)
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#define BOOT_TYPE_SD0 (1 << 2)
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#define BOOT_TYPE_SD1 (1 << 3)
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#define BOOT_TYPE_SPI_NOR (1 << 4)
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#define BOOT_TYPE_SPI_NAND (1 << 5)
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#define BOOT_TYPE_RAM (1 << 6)
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#define BOOT_TYPE_MTD_BLK_NAND (1 << 7)
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#define BOOT_TYPE_MTD_BLK_SPI_NAND (1 << 8)
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#define BOOT_TYPE_MTD_BLK_SPI_NOR (1 << 9)
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#define BOOT_TYPE_SATA (1 << 10)
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#define BOOT_TYPE_PCIE (1 << 11)
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/* define sd card function */
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#define SD_UNKNOWN_CARD 0
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#define SD_UPDATE_CARD 1
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/* tag_serial.m_mode */
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#define SERIAL_M_MODE_M0 0x0
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#define SERIAL_M_MODE_M1 0x1
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#define SERIAL_M_MODE_M2 0x2
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/* tag_soc_info.flags */
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#define SOC_FLAGS_TDBT (1 << 0)
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/* pub key programmed magic */
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#define PUBKEY_FUSE_PROGRAMMED 0x4B415352
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/*
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* boot1p.param[2] for ATF/OPTEE. The fields:
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*
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* [31:12]: reserved
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* [4:0]: boot cpu hwid.
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*/
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#define B1P2_BOOT_CPU_MASK 0x00000fff
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/* tag_ddr_mem.flags */
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#define DDR_MEM_FLG_EXT_TOP 1
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/* tag_fwver.ver[fwid][] */
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#define FWVER_LEN 36
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enum fwid {
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FW_DDR,
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FW_SPL,
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FW_ATF,
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FW_TEE,
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FW_MAX,
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};
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struct tag_serial {
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u32 version;
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u32 enable;
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u64 addr;
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u32 baudrate;
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u32 m_mode;
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u32 id;
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u32 reserved[2];
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u32 hash;
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} __packed;
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struct tag_bootdev {
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u32 version;
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u32 devtype;
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u32 devnum;
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u32 mode;
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u32 sdupdate;
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u32 reserved[6];
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u32 hash;
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} __packed;
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struct tag_ddr_mem {
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u32 count;
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u32 version;
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u64 bank[20];
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u32 flags;
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u32 data[2];
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u32 hash;
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} __packed;
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struct tag_tos_mem {
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u32 version;
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struct {
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char name[8];
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u64 phy_addr;
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u32 size;
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u32 flags;
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} tee_mem;
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struct {
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char name[8];
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u64 phy_addr;
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u32 size;
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u32 flags;
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} drm_mem;
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u64 reserved[7];
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u32 reserved1;
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u32 hash;
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} __packed;
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struct tag_atf_mem {
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u32 version;
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u64 phy_addr;
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u32 size;
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u32 flags;
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u32 reserved[2];
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u32 hash;
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} __packed;
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struct tag_pub_key {
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u32 version;
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u32 len;
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u8 data[768]; /* u32 rsa_n[64], rsa_e[64], rsa_c[64] */
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u32 flag;
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u32 reserved[5];
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u32 hash;
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} __packed;
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struct tag_ram_partition {
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u32 version;
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u32 count;
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u32 reserved[4];
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struct {
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char name[16];
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u64 start;
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u64 size;
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} part[6];
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u32 reserved1[3];
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u32 hash;
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} __packed;
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struct tag_soc_info {
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u32 version;
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u32 name; /* Hex: 0x3288, 0x3399... */
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u32 flags;
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u32 reserved[6];
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u32 hash;
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} __packed;
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struct tag_boot1p {
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u32 version;
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u32 param[8];
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u32 reserved[4];
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u32 hash;
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} __packed;
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struct tag_pstore {
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u32 version;
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struct {
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u32 addr;
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u32 size;
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} buf[16];
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u32 hash;
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} __packed;
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struct tag_fwver {
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u32 version;
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char ver[8][FWVER_LEN];
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u32 hash;
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} __packed;
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struct tag_core {
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u32 flags;
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u32 pagesize;
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u32 rootdev;
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} __packed;
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struct tag_header {
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u32 size; /* bytes = size * 4 */
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u32 magic;
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} __packed;
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/* Must be 4 bytes align */
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struct tag {
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struct tag_header hdr;
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union {
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struct tag_core core;
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struct tag_serial serial;
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struct tag_bootdev bootdev;
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struct tag_ddr_mem ddr_mem;
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struct tag_tos_mem tos_mem;
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struct tag_ram_partition ram_part;
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struct tag_atf_mem atf_mem;
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struct tag_pub_key pub_key;
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struct tag_soc_info soc;
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struct tag_boot1p boot1p;
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struct tag_pstore pstore;
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struct tag_fwver fwver;
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} u;
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} __aligned(4);
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#define tag_next(t) ((struct tag *)((u32 *)(t) + (t)->hdr.size))
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#define tag_size(type) ((sizeof(struct tag_header) + sizeof(struct type)) >> 2)
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#define for_each_tag(t, base) \
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for (t = base; t->hdr.size; t = tag_next(t))
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/*
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* Destroy atags
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*
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* first pre-loader who creates atags must call it before atags_set_tag(),
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* because atags_set_tag() may detect last valid and existence ATAG_CORE
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* tag in memory and lead a wrong setup, that is not what we expect.
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*/
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void atags_destroy(void);
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/*
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* atags_set_tag - set tag data
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*
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* @magic: tag magic, i.e. ATAG_SERIAL, ATAG_BOOTDEV, ....
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* @tagdata: core data of struct, i.e. struct tag_serial/tag_bootdev ...
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*
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* return: 0 on success, others failed.
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*/
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int atags_set_tag(u32 magic, void *tagdata);
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/*
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* atags_get_tag - get tag by tag magic
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*
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* @magic: tag magic, i.e. ATAG_SERIAL, ATAG_BOOTDEV, ...
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*
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* return: NULL on failed, otherwise return the tag that we want.
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*/
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struct tag *atags_get_tag(u32 magic);
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/*
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* atags_is_available - check if atags is available, used for second or
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* later pre-loaders.
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*
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* return: 0 is not available, otherwise available.
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*/
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int atags_is_available(void);
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/*
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* atags_overflow - check if atags is overflow
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*
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* return: 0 if not overflow, otherwise overflow.
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*/
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int atags_overflow(struct tag *t);
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/*
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* atags_bad_magic - check if atags magic is invalid.
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*
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* return: 1 if invalid, otherwise valid.
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*/
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int atags_bad_magic(u32 magic);
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/*
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* atags_set_shared_fwver - set fwver tag.
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*
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* return: 0 on success, otherwise failed.
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*/
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int atags_set_shared_fwver(u32 fwid, char *ver);
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#ifdef CONFIG_SPL_BUILD
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/*
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* get_bootdev_by_brom_bootsource
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*
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* @magic: void
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*
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* return: boootdev, else 0 fail.
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*/
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int get_bootdev_by_brom_bootsource(void);
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/*
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* atags_set_bootdev_by_brom_bootsource
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*
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* @magic: void
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*
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* return: 0 success, others fail.
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*/
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int atags_set_bootdev_by_brom_bootsource(void);
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/*
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* get_bootdev_by_spl_bootdevice
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*
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* @bootdevice
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*
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* return: boootdev, else -ENODEV fail.
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*/
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int get_bootdev_by_spl_bootdevice(int bootdevice);
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/*
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* atags_set_bootdev_by_spl_bootdevice
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*
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* @bootdevice
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*
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* return: 0 success, others fail.
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*/
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int atags_set_bootdev_by_spl_bootdevice(int bootdevice);
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/*
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* atags_set_pub_key
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*
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* @data: public key data
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* @len: public key len
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* @flag: indicate the pulic key hash is burned or not
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*
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* return: 0 success, others fail.
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*/
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int atags_set_pub_key(void *data, int len, int flag);
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#endif
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#if CONFIG_IS_ENABLED(TINY_FRAMEWORK) && \
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!CONFIG_IS_ENABLED(LIBGENERIC_SUPPORT) && \
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!CONFIG_IS_ENABLED(USE_ARCH_MEMSET)
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void *memset(void *s, int c, size_t count);
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#endif
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#if CONFIG_IS_ENABLED(TINY_FRAMEWORK) && \
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!CONFIG_IS_ENABLED(LIBGENERIC_SUPPORT) && \
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!CONFIG_IS_ENABLED(USE_ARCH_MEMCPY)
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void *memcpy(void *dest, const void *src, size_t count);
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#endif
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#endif
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