diff options
| author | Atish Patra <atish.patra@wdc.com> | 2019-02-13 11:03:53 -0800 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2019-02-14 09:31:18 +0530 |
| commit | 35e617385f5c6278ee83434b9594d07731993742 (patch) | |
| tree | 92beb4902e02593b745913c2d29fc233ca57ea7f /firmware/fw_base.S | |
| parent | 28d1dd2430a80d350c9a53a1f5be08de8c3f9dc1 (diff) | |
firmware: Use CSR_<FOO> instead of <foo> for csr*
Some older toolchains may not have all the csr's defined. Update all
the csr functions to use the CSR_ #define values instead of the
toolchain defined values.
Signed-off-by: Atish Patra <atish.patra@wdc.com>
Diffstat (limited to 'firmware/fw_base.S')
| -rw-r--r-- | firmware/fw_base.S | 32 |
1 files changed, 16 insertions, 16 deletions
diff --git a/firmware/fw_base.S b/firmware/fw_base.S index fb27ea3..6595489 100644 --- a/firmware/fw_base.S +++ b/firmware/fw_base.S @@ -22,7 +22,7 @@ _start: * Jump to warm-boot if this is not the first core booting, * that is, for mhartid != 0 */ - csrr a6, mhartid + csrr a6, CSR_MHARTID blt zero, a6, _wait_for_boot_hart /* Zero-out BSS */ @@ -126,15 +126,15 @@ _wait_for_boot_hart: _start_warm: /* Disable and clear all interrupts */ - csrw mie, zero - csrw mip, zero + csrw CSR_MIE, zero + csrw CSR_MIP, zero /* Preload per-HART details * s6 -> HART ID * s7 -> HART Count * s8 -> HART Stack Size */ - csrr s6, mhartid + csrr s6, CSR_MHARTID la a4, platform #if __riscv_xlen == 64 lwu s7, SBI_PLATFORM_HART_COUNT_OFFSET(a4) @@ -145,7 +145,7 @@ _start_warm: #endif /* HART ID should be within expected limit */ - csrr s6, mhartid + csrr s6, CSR_MHARTID bge s6, s7, _start_hang /* Setup scratch space */ @@ -156,7 +156,7 @@ _start_warm: sub tp, tp, a5 li a5, SBI_SCRATCH_SIZE sub tp, tp, a5 - csrw mscratch, tp + csrw CSR_MSCRATCH, tp /* Initialize scratch space */ la a4, _fw_start @@ -187,11 +187,11 @@ _start_warm: /* Setup trap handler */ la a4, _trap_handler - csrw mtvec, a4 + csrw CSR_MTVEC, a4 /* Initialize SBI runtime */ - csrr a0, mscratch - call sbi_init + csrr a0, CSR_MSCRATCH + Call sbi_init /* We don't expect to reach here hence just hang */ j _start_hang @@ -243,7 +243,7 @@ _start_hang: .globl _trap_handler _trap_handler: /* Swap SP and MSCRATCH */ - csrrw sp, mscratch, sp + csrrw sp, CSR_MSCRATCH, sp /* Setup exception stack */ add sp, sp, -(SBI_TRAP_REGS_SIZE) @@ -256,12 +256,12 @@ _trap_handler: /* Save original SP and restore MSCRATCH */ add t0, sp, SBI_TRAP_REGS_SIZE - csrrw t0, mscratch, t0 + csrrw t0, CSR_MSCRATCH, t0 REG_S t0, SBI_TRAP_REGS_OFFSET(sp)(sp) /* Save MEPC and MSTATUS CSRs */ - csrr t0, mepc - csrr t1, mstatus + csrr t0, CSR_MEPC + csrr t1, CSR_MSTATUS /* * Note: Fast path trap handling can be done here @@ -305,7 +305,7 @@ _trap_handler: /* Call C routine */ add a0, sp, zero - csrr a1, mscratch + csrr a1, CSR_MSCRATCH call sbi_trap_handler /* Restore all general regisers except SP, RA, T0, T1, T2, and T3 */ @@ -348,8 +348,8 @@ _trap_handler: */ /* Restore MEPC and MSTATUS CSRs */ - csrw mepc, t0 - csrw mstatus, t1 + csrw CSR_MEPC, t0 + csrw CSR_MSTATUS, t1 /* Restore RA, T0, T1, and T2 */ REG_L ra, SBI_TRAP_REGS_OFFSET(ra)(sp) |