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-rw-r--r--src/arch/riscv/bootblock.S7
1 files changed, 5 insertions, 2 deletions
diff --git a/src/arch/riscv/bootblock.S b/src/arch/riscv/bootblock.S
index 029e9e48a3..e75e1ca407 100644
--- a/src/arch/riscv/bootblock.S
+++ b/src/arch/riscv/bootblock.S
@@ -34,8 +34,11 @@ machine_handler:
.globl _start
_start:
+#define STACK_START 0x80800000 /* 2GiB + 8MiB */
+#define STACK_SIZE 0x0000fff0
+
// pending figuring out this f-ing toolchain. Hardcode what we know works.
- li sp, 0x80FFF0 // stack start + stack size
+ li sp, STACK_START + STACK_SIZE
# make room for HLS and initialize it
addi sp, sp, -64 // MENTRY_FRAME_SIZE
@@ -43,7 +46,7 @@ _start:
call hls_init
//poison the stack
- li t1, 0x800000
+ li t1, STACK_START
li t0, 0xdeadbeef
sd t0, 0(t1)