drivers/intel/fsp2_0: Add simple reset handler
Any FSP API call may request a reset. This is indicated in API function
return code. Add trivial reset handler code.
BUG=chrome-os-partner:54149
BRANCH=none
TEST=none
Change-Id: Ieb5e2d52ffdaf3c3ed416603f6dbb4f9c25a1a7b
Signed-off-by: Andrey Petrov <andrey.petrov@intel.com>
Reviewed-on: https://review.coreboot.org/15334
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
diff --git a/src/drivers/intel/fsp2_0/include/fsp/util.h b/src/drivers/intel/fsp2_0/include/fsp/util.h
index d9d9539..d546c11 100644
--- a/src/drivers/intel/fsp2_0/include/fsp/util.h
+++ b/src/drivers/intel/fsp2_0/include/fsp/util.h
@@ -14,6 +14,7 @@
#define _FSP2_0_UTIL_H_
#include <boot/coreboot_tables.h>
+#include <fsp/api.h>
#include <fsp/info_header.h>
#include <memrange.h>
@@ -39,4 +40,9 @@
/* Load a vbt.bin file for graphics. Returns 0 if a valid VBT is not found. */
uintptr_t fsp_load_vbt(void);
+/* Trivial handling of reset exit statuses */
+void fsp_handle_reset(enum fsp_status status);
+/* Returns true if the non-success status is a reset request */
+bool fsp_reset_requested(enum fsp_status status);
+
#endif /* _FSP2_0_UTIL_H_ */
diff --git a/src/drivers/intel/fsp2_0/util.c b/src/drivers/intel/fsp2_0/util.c
index 2eb6cf9..b47b898 100644
--- a/src/drivers/intel/fsp2_0/util.c
+++ b/src/drivers/intel/fsp2_0/util.c
@@ -18,6 +18,7 @@
#include <lib.h>
#include <memrange.h>
#include <program_loading.h>
+#include <reset.h>
#include <string.h>
static bool looks_like_fsp_header(const uint8_t *raw_hdr)
@@ -160,3 +161,26 @@
return CB_SUCCESS;
}
+
+void fsp_handle_reset(enum fsp_status status)
+{
+ switch(status) {
+ case FSP_STATUS_RESET_REQUIRED_COLD:
+ hard_reset();
+ break;
+ case FSP_STATUS_RESET_REQUIRED_WARM:
+ soft_reset();
+ break;
+ case FSP_STATUS_RESET_REQUIRED_GLOBAL_RESET:
+ global_reset();
+ break;
+ default:
+ break;
+ }
+}
+
+bool fsp_reset_requested(enum fsp_status status)
+{
+ return (status >= FSP_STATUS_RESET_REQUIRED_COLD &&
+ status <= FSP_STATUS_RESET_REQUIRED_GLOBAL_RESET);
+}