diff options
Diffstat (limited to 'src/arch/riscv')
| -rw-r--r-- | src/arch/riscv/ramstage.S | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/arch/riscv/ramstage.S b/src/arch/riscv/ramstage.S index 921c46d8a5..954b1555b3 100644 --- a/src/arch/riscv/ramstage.S +++ b/src/arch/riscv/ramstage.S @@ -7,7 +7,11 @@ .section ".text._start", "ax", %progbits .globl _start _start: - /* cbmem_top is passed via a2 */ + # The romstage may pass the following arguments: + # a0: the value of mhartid + # a1: a pointer to the flattened devicetree + # a2: cbmem_top + la t0, _cbmem_top_ptr #if __riscv_xlen == 32 sw a2, (t0) @@ -28,6 +32,7 @@ _start: # initialize hart-local storage csrr a0, mhartid + #NOTE a1 contains FDT and should not be cluttered above call hls_init li a0, CONFIG_RISCV_WORKING_HARTID |