projects / people / ms / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| f60df20a MY |
1 | /* |
| 2 | * (C) Copyright 2015 Miao Yan <yanmiaobest@gmail.com> | |
| 3 | * | |
| 4 | * SPDX-License-Identifier: GPL-2.0+ | |
| 5 | */ | |
| 6 | ||
| 7 | #ifndef __FW_CFG__ | |
| 8 | #define __FW_CFG__ | |
| 9 | ||
| 10 | #define FW_CONTROL_PORT 0x510 | |
| 11 | #define FW_DATA_PORT 0x511 | |
| 12 | #define FW_DMA_PORT_LOW 0x514 | |
| 13 | #define FW_DMA_PORT_HIGH 0x518 | |
| 14 | ||
| 15 | enum qemu_fwcfg_items { | |
| 16 | FW_CFG_SIGNATURE = 0x00, | |
| 17 | FW_CFG_ID = 0x01, | |
| 18 | FW_CFG_UUID = 0x02, | |
| 19 | FW_CFG_RAM_SIZE = 0x03, | |
| 20 | FW_CFG_NOGRAPHIC = 0x04, | |
| 21 | FW_CFG_NB_CPUS = 0x05, | |
| 22 | FW_CFG_MACHINE_ID = 0x06, | |
| 23 | FW_CFG_KERNEL_ADDR = 0x07, | |
| 24 | FW_CFG_KERNEL_SIZE = 0x08, | |
| 25 | FW_CFG_KERNEL_CMDLINE = 0x09, | |
| 26 | FW_CFG_INITRD_ADDR = 0x0a, | |
| 27 | FW_CFG_INITRD_SIZE = 0x0b, | |
| 28 | FW_CFG_BOOT_DEVICE = 0x0c, | |
| 29 | FW_CFG_NUMA = 0x0d, | |
| 30 | FW_CFG_BOOT_MENU = 0x0e, | |
| 31 | FW_CFG_MAX_CPUS = 0x0f, | |
| 32 | FW_CFG_KERNEL_ENTRY = 0x10, | |
| 33 | FW_CFG_KERNEL_DATA = 0x11, | |
| 34 | FW_CFG_INITRD_DATA = 0x12, | |
| 35 | FW_CFG_CMDLINE_ADDR = 0x13, | |
| 36 | FW_CFG_CMDLINE_SIZE = 0x14, | |
| 37 | FW_CFG_CMDLINE_DATA = 0x15, | |
| 38 | FW_CFG_SETUP_ADDR = 0x16, | |
| 39 | FW_CFG_SETUP_SIZE = 0x17, | |
| 40 | FW_CFG_SETUP_DATA = 0x18, | |
| 41 | FW_CFG_FILE_DIR = 0x19, | |
| 42 | FW_CFG_FILE_FIRST = 0x20, | |
| 43 | FW_CFG_WRITE_CHANNEL = 0x4000, | |
| 44 | FW_CFG_ARCH_LOCAL = 0x8000, | |
| 45 | FW_CFG_INVALID = 0xffff, | |
| 46 | }; | |
| 47 | ||
| 48 | #define FW_CFG_FILE_SLOTS 0x10 | |
| 49 | #define FW_CFG_MAX_ENTRY (FW_CFG_FILE_FIRST + FW_CFG_FILE_SLOTS) | |
| 50 | #define FW_CFG_ENTRY_MASK ~(FW_CFG_WRITE_CHANNEL | FW_CFG_ARCH_LOCAL) | |
| 51 | ||
| 52 | #define FW_CFG_MAX_FILE_PATH 56 | |
| 53 | ||
| 54 | #define QEMU_FW_CFG_SIGNATURE (('Q' << 24) | ('E' << 16) | ('M' << 8) | 'U') | |
| 55 | ||
| 56 | #define FW_CFG_DMA_ERROR (1 << 0) | |
| 57 | #define FW_CFG_DMA_READ (1 << 1) | |
| 58 | #define FW_CFG_DMA_SKIP (1 << 2) | |
| 59 | #define FW_CFG_DMA_SELECT (1 << 3) | |
| 60 | ||
| 61 | #define FW_CFG_DMA_ENABLED (1 << 1) | |
| 62 | ||
| 63 | struct fw_cfg_file { | |
| 64 | __be32 size; | |
| 65 | __be16 select; | |
| 66 | __be16 reserved; | |
| 67 | char name[FW_CFG_MAX_FILE_PATH]; | |
| 68 | }; | |
| 69 | ||
| 70 | struct fw_cfg_files { | |
| 71 | __be32 count; | |
| 72 | struct fw_cfg_file files[]; | |
| 73 | }; | |
| 74 | ||
| 75 | struct fw_cfg_dma_access { | |
| 76 | __be32 control; | |
| 77 | __be32 length; | |
| 78 | __be64 address; | |
| 79 | }; | |
| 80 | ||
| 81 | /** | |
| 82 | * Initialize QEMU fw_cfg interface | |
| 83 | */ | |
| 84 | void qemu_fwcfg_init(void); | |
| 85 | ||
| 86 | /** | |
| 87 | * Get system cpu number | |
| 88 | * | |
| 89 | * @return: cpu number in system | |
| 90 | */ | |
| 91 | int qemu_fwcfg_online_cpus(void); | |
| 92 | ||
| 93 | #endif |