Merge pull request #1776 from Dolu1990/nax-smp

core/naxriscv provide a deployable NaxRiscv SMP
enjoy-digital · Sep 18, 2023 · 4639c7b · 4639c7b
2 parents 8bd548d + ff3318b
commit 4639c7b
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diff --git a/litex/soc/cores/cpu/naxriscv/boot-helper.S b/litex/soc/cores/cpu/naxriscv/boot-helper.S
@@ -1,4 +1,15 @@
 .section    .text, "ax", @progbits
-.global     boot_helper
+.global boot_helper
+.global smp_lottery_target
+.global smp_lottery_lock
+.global smp_lottery_args
+
 boot_helper:
+	sw x10, smp_lottery_args  , x14
+	sw x11, smp_lottery_args+4, x14
+	sw x12, smp_lottery_args+8, x14
+	sw x13, smp_lottery_target, x14
+	fence w, w
+	li x15, 1
+	sw x15, smp_lottery_lock, x14
 	jr x13