[U-Boot] [PATCH 4/9] riscv: ae350: initialize PLIC

[Andes]

From: Rick Chen <r...@andestech.com>

Initialize PLIC when ae350 board startup.

Signed-off-by: Rick Chen <r...@andestech.com>
Cc: Greentime Hu <greent...@andestech.com>
---
 board/AndesTech/ax25-ae350/ax25-ae350.c | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/board/AndesTech/ax25-ae350/ax25-ae350.c 
b/board/AndesTech/ax25-ae350/ax25-ae350.c
index d343453..ebeb4b8 100644
--- a/board/AndesTech/ax25-ae350/ax25-ae350.c
+++ b/board/AndesTech/ax25-ae350/ax25-ae350.c
@@ -11,10 +11,17 @@
 #include <linux/io.h>
 #include <faraday/ftsmc020.h>
 #include <fdtdec.h>
+#include <dm.h>
+#include <dm/device-internal.h>
+#include <dm/lists.h>
+#include <dm/uclass-internal.h>
+#include <cpu.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
 extern phys_addr_t prior_stage_fdt_address;
+extern int plic_init(int harts);
+
 /*
  * Miscellaneous platform dependent initializations
  */
@@ -97,9 +104,32 @@ int smc_init(void)
        return 0;
 }
 
+#ifdef CONFIG_NDS_PLIC
+int init_plic(void)
+{
+       struct udevice *dev;
+       int ret;
+
+       ret = uclass_find_first_device(UCLASS_CPU, &dev);
+       if (ret)
+               return ret;
+
+       if (ret == 0 && dev != NULL) {
+               ret = cpu_get_count(dev);
+               plic_init(ret);
+               return 0;
+       }
+
+       return -ENODEV;
+}
+#endif
+
 #ifdef CONFIG_BOARD_EARLY_INIT_F
 int board_early_init_f(void)
 {
+#ifdef CONFIG_NDS_PLIC
+       init_plic();
+#endif
        smc_init();
 
        return 0;
-- 
2.7.4

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