@@ -140,3 +140,14 @@ int arch_early_init_r(void)
{
return riscv_cpu_probe();
}
+
+/**
+ * harts_early_init() - A callback function called by start.S to configure
+ * feature settings of each hart.
+ *
+ * In a multi-core system, memory access shall be careful here, it shall
+ * take care of race conditions.
+ */
+__weak void harts_early_init(void)
+{
+}
@@ -117,6 +117,10 @@ call_board_init_f_0:
mv sp, a0
#endif
+ /* Configure proprietary settings and customized CSRs of harts */
+call_harts_early_init:
+ jal harts_early_init
+
#ifndef CONFIG_XIP
/*
* Pick hart to initialize global data and run U-Boot. The other harts