Firmware/MNRS-BM-BSP
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cleans bsp a bit up

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This commit is contained in:
Eyck Jentzsch
2024-01-14 08:14:57 +01:00
parent 5e7c2cbce9
commit b5101117aa
17 changed files with 150 additions and 387 deletions
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122
env/entry.S vendored
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@@ -10,85 +10,67 @@
.align 2
.global trap_entry
trap_entry:
addi sp, sp, -32*REGBYTES
STORE x1, 1*REGBYTES(sp)
STORE x2, 2*REGBYTES(sp)
STORE x3, 3*REGBYTES(sp)
STORE x4, 4*REGBYTES(sp)
STORE x5, 5*REGBYTES(sp)
STORE x6, 6*REGBYTES(sp)
STORE x7, 7*REGBYTES(sp)
STORE x8, 8*REGBYTES(sp)
STORE x9, 9*REGBYTES(sp)
STORE x10, 10*REGBYTES(sp)
STORE x11, 11*REGBYTES(sp)
STORE x12, 12*REGBYTES(sp)
STORE x13, 13*REGBYTES(sp)
STORE x14, 14*REGBYTES(sp)
STORE x15, 15*REGBYTES(sp)
#ifndef __riscv_abi_rve
STORE x16, 16*REGBYTES(sp)
STORE x17, 17*REGBYTES(sp)
STORE x18, 18*REGBYTES(sp)
STORE x19, 19*REGBYTES(sp)
STORE x20, 20*REGBYTES(sp)
STORE x21, 21*REGBYTES(sp)
STORE x22, 22*REGBYTES(sp)
STORE x23, 23*REGBYTES(sp)
STORE x24, 24*REGBYTES(sp)
STORE x25, 25*REGBYTES(sp)
STORE x26, 26*REGBYTES(sp)
STORE x27, 27*REGBYTES(sp)
STORE x28, 28*REGBYTES(sp)
STORE x29, 29*REGBYTES(sp)
STORE x30, 30*REGBYTES(sp)
STORE x31, 31*REGBYTES(sp)
addi sp, sp, -8*REGBYTES
STORE x1, 1*REGBYTES(sp) // ra
STORE x5, 2*REGBYTES(sp) // t0
STORE x10, 3*REGBYTES(sp) // a0
STORE x11, 4*REGBYTES(sp) // a1
STORE x12, 5*REGBYTES(sp) // a2
STORE x13, 6*REGBYTES(sp) // a3
STORE x15, 7*REGBYTES(sp) // t1
#else
addi sp, sp, -16*REGBYTES
STORE x1, 1*REGBYTES(sp) // ra
STORE x5, 2*REGBYTES(sp) // t0
STORE x6, 3*REGBYTES(sp) // t1
STORE x7, 4*REGBYTES(sp) // t2
STORE x10, 5*REGBYTES(sp) // a0
STORE x11, 6*REGBYTES(sp) // a1
STORE x12, 7*REGBYTES(sp) // a2
STORE x13, 8*REGBYTES(sp) // a3
STORE x14, 9*REGBYTES(sp) // a4
STORE x15, 10*REGBYTES(sp) // a5
STORE x16, 11*REGBYTES(sp) // a6
STORE x17, 12*REGBYTES(sp) // a7
STORE x28, 13*REGBYTES(sp) // t3
STORE x29, 14*REGBYTES(sp) // t4
STORE x30, 15*REGBYTES(sp) // t5
STORE x31, 16*REGBYTES(sp) // t6
#endif
csrr a0, mcause
csrr a1, mepc
mv a2, sp
call handle_trap
csrw mepc, a0
# Remain in M-mode after mret
li t0, MSTATUS_MPP
csrs mstatus, t0
LOAD x1, 1*REGBYTES(sp)
LOAD x2, 2*REGBYTES(sp)
LOAD x3, 3*REGBYTES(sp)
LOAD x4, 4*REGBYTES(sp)
LOAD x5, 5*REGBYTES(sp)
LOAD x6, 6*REGBYTES(sp)
LOAD x7, 7*REGBYTES(sp)
LOAD x8, 8*REGBYTES(sp)
LOAD x9, 9*REGBYTES(sp)
LOAD x10, 10*REGBYTES(sp)
LOAD x11, 11*REGBYTES(sp)
LOAD x12, 12*REGBYTES(sp)
LOAD x13, 13*REGBYTES(sp)
LOAD x14, 14*REGBYTES(sp)
LOAD x15, 15*REGBYTES(sp)
#ifndef __riscv_abi_rve
LOAD x16, 16*REGBYTES(sp)
LOAD x17, 17*REGBYTES(sp)
LOAD x18, 18*REGBYTES(sp)
LOAD x19, 19*REGBYTES(sp)
LOAD x20, 20*REGBYTES(sp)
LOAD x21, 21*REGBYTES(sp)
LOAD x22, 22*REGBYTES(sp)
LOAD x23, 23*REGBYTES(sp)
LOAD x24, 24*REGBYTES(sp)
LOAD x25, 25*REGBYTES(sp)
LOAD x26, 26*REGBYTES(sp)
LOAD x27, 27*REGBYTES(sp)
LOAD x28, 28*REGBYTES(sp)
LOAD x29, 29*REGBYTES(sp)
LOAD x30, 30*REGBYTES(sp)
LOAD x31, 31*REGBYTES(sp)
addi sp, sp, -8*REGBYTES
LOAD x1, 1*REGBYTES(sp) // ra
LOAD x5, 2*REGBYTES(sp) // t0
LOAD x10, 3*REGBYTES(sp) // a0
LOAD x11, 4*REGBYTES(sp) // a1
LOAD x12, 5*REGBYTES(sp) // a2
LOAD x13, 6*REGBYTES(sp) // a3
LOAD x15, 7*REGBYTES(sp) // t1
#else
addi sp, sp, -16*REGBYTES
LOAD x1, 1*REGBYTES(sp) // ra
LOAD x5, 2*REGBYTES(sp) // t0
LOAD x6, 3*REGBYTES(sp) // t1
LOAD x7, 4*REGBYTES(sp) // t2
LOAD x10, 5*REGBYTES(sp) // a0
LOAD x11, 6*REGBYTES(sp) // a1
LOAD x12, 7*REGBYTES(sp) // a2
LOAD x13, 8*REGBYTES(sp) // a3
LOAD x14, 9*REGBYTES(sp) // a4
LOAD x15, 10*REGBYTES(sp) // a5
LOAD x16, 11*REGBYTES(sp) // a6
LOAD x17, 12*REGBYTES(sp) // a7
LOAD x28, 13*REGBYTES(sp) // t3
LOAD x29, 14*REGBYTES(sp) // t4
LOAD x30, 15*REGBYTES(sp) // t5
LOAD x31, 16*REGBYTES(sp) // t6
#endif
addi sp, sp, 32*REGBYTES
mret
.weak handle_trap