platform: generic: allwinner: Optimize current hart scratch access
The address of the local scratch area is stored in each hart's mscratch
CSR. It is more efficient to read the CSR than to compute the address
from the hart ID.
Signed-off-by: Samuel Holland <samuel.holland@sifive.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
diff --git a/platform/generic/allwinner/sun20i-d1.c b/platform/generic/allwinner/sun20i-d1.c
index ed19d5d..ab2eee5 100644
--- a/platform/generic/allwinner/sun20i-d1.c
+++ b/platform/generic/allwinner/sun20i-d1.c
@@ -142,7 +142,7 @@
static void sun20i_d1_riscv_cfg_init(void)
{
- u64 entry = sbi_hartid_to_scratch(0)->warmboot_addr;
+ u64 entry = sbi_scratch_thishart_ptr()->warmboot_addr;
/* Enable MMIO access. */
writel_relaxed(CCU_BGR_ENABLE, SUN20I_D1_CCU_BASE + RISCV_CFG_BGR_REG);
