//------------------------------------------------------------------------------ // // SiFive U5 Series Timer CSR functions. // // Copyright (c) 2019, Hewlett Packard Enterprise Development LP. All rights reserved.
// // SPDX-License-Identifier: BSD-2-Clause-Patent // //------------------------------------------------------------------------------ #include #include #include .data .text .align 3 .global ASM_PFX(RiscVReadMachineTimer) .global ASM_PFX(RiscVSetMachineTimerCmp) .global ASM_PFX(RiscVReadMachineTimerCmp) // // Read machine timer CSR. // @retval a0 : 64-bit machine timer. // ASM_PFX (RiscVReadMachineTimer): li t1, CLINT_REG_MTIME ld a0, (t1) ret // // Set machine timer compare CSR. // @param a0 : UINT64 // ASM_PFX (RiscVSetMachineTimerCmp): li t1, CLINT_REG_MTIMECMP0 sd a0, (t1) ret // // Read machine timer compare CSR. // @param a0 : UINT64 // ASM_PFX (RiscVReadMachineTimerCmp): li t1, CLINT_REG_MTIMECMP0 ld a0, (t1) ret