1 /* SPDX-License-Identifier: BSD-2-Clause */ 2 /* 3 * Copyright 2022 NXP 4 */ 5 6 #ifndef __SBI_H 7 #define __SBI_H 8 9 #if defined(CFG_RISCV_SBI) 10 11 /* SBI return error codes */ 12 #define SBI_SUCCESS 0 13 #define SBI_ERR_FAILURE -1 14 #define SBI_ERR_NOT_SUPPORTED -2 15 #define SBI_ERR_INVALID_PARAM -3 16 #define SBI_ERR_DENIED -4 17 #define SBI_ERR_INVALID_ADDRESS -5 18 #define SBI_ERR_ALREADY_AVAILABLE -6 19 #define SBI_ERR_ALREADY_STARTED -7 20 #define SBI_ERR_ALREADY_STOPPED -8 21 22 /* SBI Extension IDs */ 23 #define SBI_EXT_0_1_CONSOLE_PUTCHAR 0x01 24 #define SBI_EXT_BASE 0x10 25 #define SBI_EXT_HSM 0x48534D 26 #define SBI_EXT_DBCN 0x4442434E 27 #define SBI_EXT_TEE 0x544545 28 29 #ifndef __ASSEMBLER__ 30 31 /* SBI function IDs for Base extension */ 32 enum sbi_ext_base_fid { 33 SBI_EXT_BASE_GET_SPEC_VERSION = 0, 34 SBI_EXT_BASE_GET_IMP_ID, 35 SBI_EXT_BASE_GET_IMP_VERSION, 36 SBI_EXT_BASE_PROBE_EXT, 37 SBI_EXT_BASE_GET_MVENDORID, 38 SBI_EXT_BASE_GET_MARCHID, 39 SBI_EXT_BASE_GET_MIMPID, 40 }; 41 42 /* SBI function IDs for HSM extension */ 43 enum sbi_ext_hsm_fid { 44 SBI_EXT_HSM_HART_START = 0, 45 SBI_EXT_HSM_HART_STOP, 46 SBI_EXT_HSM_HART_GET_STATUS, 47 SBI_EXT_HSM_HART_SUSPEND, 48 }; 49 50 /* SBI function IDs for Debug Console extension */ 51 enum sbi_ext_dbcn_fid { 52 SBI_EXT_DBCN_CONSOLE_WRITE = 0, 53 SBI_EXT_DBCN_CONSOLE_READ = 1, 54 SBI_EXT_DBCN_CONSOLE_WRITE_BYTE = 2, 55 }; 56 57 #include <compiler.h> 58 #include <encoding.h> 59 #include <stdint.h> 60 #include <sys/cdefs.h> 61 #include <types_ext.h> 62 #include <util.h> 63 64 int sbi_probe_extension(int extid); 65 void sbi_console_putchar(int ch); 66 int sbi_dbcn_write_byte(unsigned char ch); 67 int sbi_hsm_hart_start(uint32_t hartid, paddr_t start_addr, unsigned long arg); 68 69 #endif /*__ASSEMBLER__*/ 70 #endif /*defined(CFG_RISCV_SBI)*/ 71 #endif /*__SBI_H*/ 72