watchdog: Implement generic watchdog_reset() version

[oweals/u-boot.git] / common / board_r.c

diff --git a/common/board_r.c b/common/board_r.c
index 472987d5d52f83e64d62a892c4adc4ca9db3a4c2..150e8cd424f64b6ebe435bf817f0483492d9a153 100644 (file)
--- a/common/board_r.c
+++ b/common/board_r.c
@@ -48,6 +48,7 @@
 #include <linux/compiler.h>
 #include <linux/err.h>
 #include <efi_loader.h>
+#include <wdt.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -154,6 +155,13 @@ static int initr_reloc_global_data(void)
        gd->fdt_blob += gd->reloc_off;
 #endif
 #ifdef CONFIG_EFI_LOADER
+       /*
+        * On the ARM architecture gd is mapped to a fixed register (r9 or x18).
+        * As this register may be overwritten by an EFI payload we save it here
+        * and restore it on every callback entered.
+        */
+       efi_save_gd();
+
        efi_runtime_relocate(gd->relocaddr, NULL);
 #endif
 
@@ -670,6 +678,9 @@ static init_fnc_t init_sequence_r[] = {
 #ifdef CONFIG_DM
        initr_dm,
 #endif
+#if defined(CONFIG_WDT)
+       initr_watchdog,
+#endif
 #if defined(CONFIG_ARM) || defined(CONFIG_NDS32) || defined(CONFIG_RISCV) || \
        defined(CONFIG_SANDBOX)
        board_init,     /* Setup chipselects */