From c10e3fe5f9a14de3f001a6b007b7d9f117858dff Mon Sep 17 00:00:00 2001 From: Himanshu Chauhan Date: Thu, 19 Jan 2023 20:48:24 +0530 Subject: firmware: Add RW section offset in scratch Add the RW section offset, provided by _fw_rw_offset symbol, to the scratch structure. This will be used to program separate pmp entry for RW section. Signed-off-by: Himanshu Chauhan Reviewed-by: Anup Patel --- firmware/fw_base.S | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'firmware') diff --git a/firmware/fw_base.S b/firmware/fw_base.S index 3f622b3..e04b683 100644 --- a/firmware/fw_base.S +++ b/firmware/fw_base.S @@ -298,6 +298,12 @@ _scratch_init: sub a5, t3, a4 REG_S a4, SBI_SCRATCH_FW_START_OFFSET(tp) REG_S a5, SBI_SCRATCH_FW_SIZE_OFFSET(tp) + + /* Store R/W section's offset in scratch space */ + lla a4, __fw_rw_offset + REG_L a5, 0(a4) + REG_S a5, SBI_SCRATCH_FW_RW_OFFSET(tp) + /* Store next arg1 in scratch space */ MOV_3R s0, a0, s1, a1, s2, a2 call fw_next_arg1 @@ -519,6 +525,8 @@ _link_start: RISCV_PTR FW_TEXT_START _link_end: RISCV_PTR _fw_reloc_end +__fw_rw_offset: + RISCV_PTR _fw_rw_offset .section .entry, "ax", %progbits .align 3 -- cgit v1.1