1 files changed, 50 insertions, 0 deletions
diff --git a/roms/skiboot/external/common/arch_flash_common.c b/roms/skiboot/external/common/arch_flash_common.c
new file mode 100644
index 000000000..c7a6e95ca
--- /dev/null
+++ b/roms/skiboot/external/common/arch_flash_common.c
@@ -0,0 +1,50 @@
+// SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
+/*
+ * Default implementations
+ *
+ * Copyright 2015-2017 IBM Corp.
+ */
+
+#include <stdlib.h>
+#include <libflash/blocklevel.h>
+#include "arch_flash.h"
+
+/*
+ * This just assumes that an erase from zero to total size is
+ * 'correct'.
+ * An erase from zero to total size is the correct approach for
+ * powerpc and x86. ARM has it own function which also includes a call
+ * to the flash driver.
+ */
+int __attribute__((weak)) arch_flash_erase_chip(struct blocklevel_device *bl)
+{
+	int rc;
+	uint64_t total_size;
+
+	rc = blocklevel_get_info(bl, NULL, &total_size, NULL);
+	if (rc)
+		return rc;
+
+	return blocklevel_erase(bl, 0, total_size);
+}
+
+int __attribute__((weak,const)) arch_flash_4b_mode(struct blocklevel_device *bl, int set_4b)
+{
+	(void)bl;
+	(void)set_4b;
+	return -1;
+}
+
+enum flash_access __attribute__((weak,const)) arch_flash_access(struct blocklevel_device *bl, enum flash_access access)
+{
+	(void)bl;
+	(void)access;
+	return ACCESS_INVAL;
+}
+
+int __attribute__((weak,const)) arch_flash_set_wrprotect(struct blocklevel_device *bl, int set)
+{
+	(void)bl;
+	(void)set;
+	return -1;
+}