1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 /* 3 * Copyright (C) 2019 Intel Corporation <www.intel.com> 4 */ 5 6 #ifndef __SLIMBOOTLOADER_ARCH_H__ 7 #define __SLIMBOOTLOADER_ARCH_H__ 8 9 #include <common.h> 10 #include <asm/hob.h> 11 12 /** 13 * A GUID to get MemoryMap info hob which is provided by Slim Bootloader 14 */ 15 #define SBL_MEMORY_MAP_INFO_GUID \ 16 EFI_GUID(0xa1ff7424, 0x7a1a, 0x478e, \ 17 0xa9, 0xe4, 0x92, 0xf3, 0x57, 0xd1, 0x28, 0x32) 18 19 /** 20 * A GUID to get SerialPort info hob which is provided by Slim Bootloader 21 */ 22 #define SBL_SERIAL_PORT_INFO_GUID \ 23 EFI_GUID(0x6c6872fe, 0x56a9, 0x4403, \ 24 0xbb, 0x98, 0x95, 0x8d, 0x62, 0xde, 0x87, 0xf1) 25 26 /** 27 * A GUID to get boot performance info hob which is provided by Slim Bootloader 28 */ 29 #define SBL_PERFORMANCE_INFO_GUID \ 30 EFI_GUID(0x868204be, 0x23d0, 0x4ff9, \ 31 0xac, 0x34, 0xb9, 0x95, 0xac, 0x04, 0xb1, 0xb9) 32 33 /** 34 * A single entry of memory map information 35 * 36 * @addr: start address of a memory map entry 37 * @size: size of a memory map entry 38 * @type: usable:1, reserved:2, acpi:3, nvs:4, unusable:5 39 * @flag: only used in Slim Bootloader 40 * @rsvd: padding for alignment 41 */ 42 struct sbl_memory_map_entry { 43 u64 addr; 44 u64 size; 45 u8 type; 46 u8 flag; 47 u8 rsvd[6]; 48 }; 49 50 /** 51 * This includes all memory map entries which is sorted based on physical start 52 * address, from low to high, and carved out reserved, acpi nvs, acpi reclaim 53 * and usable memory. 54 * 55 * @rev : revision of memory_map_info structure. currently 1. 56 * @rsvd : padding for alignment 57 * @count: the number of memory map entries 58 * @entry: array of all memory map entries 59 */ 60 struct sbl_memory_map_info { 61 u8 rev; 62 u8 rsvd[3]; 63 u32 count; 64 struct sbl_memory_map_entry entry[0]; 65 }; 66 67 /** 68 * This includes serial port info which has already been initialized in previous 69 * Slim Bootloader stage. 70 * The Slim Bootloader initializes serial port regardless of debug/release build 71 * modes, and it passes the information to a payload thru hob. So, a payload can 72 * re-use the serial information without re-initializing serial port. 73 * 74 * @rev : revision of serial_port_info structure. currently 1. 75 * @rsvd : padding for alignment 76 * @type : port io: 1, mmio: 2 77 * @base : io base address. ex) 0x3f8, 0x80001000 78 * @baud : uart baud rate 79 * @stride: register stride in Bytes 80 * @clk : uart frequency in Hz 81 * @rsvd1 : reserved 82 */ 83 struct sbl_serial_port_info { 84 u8 rev; 85 u8 rsvd[3]; 86 u32 type; 87 u32 base; 88 u32 baud; 89 u32 stride; 90 u32 clk; 91 u32 rsvd1; 92 }; 93 94 /** 95 * This includes timestamp data which has been collected in Slim Bootloader 96 * stages from the reset vector. In addition, this has TSC frequency in KHz to 97 * calculate each timestamp. 98 * 99 * @rev : revision of performance_info structure. currently 1. 100 * @rsvd : padding for alignment 101 * @count : the number of collected timestamp data 102 * @flags : only used in Slim Bootloader 103 * @frequency: tsc frequency in KHz 104 * @timestamp: the array of timestamp data which has 64-bit tsc value 105 */ 106 struct sbl_performance_info { 107 u8 rev; 108 u8 rsvd[3]; 109 u16 count; 110 u16 flags; 111 u32 frequency; 112 u64 timestamp[0]; 113 }; 114 115 #endif /* __SLIMBOOTLOADER_ARCH_H__ */ 116