1 files changed, 79 insertions, 0 deletions
diff --git a/roms/skiboot/libflash/libflash.h b/roms/skiboot/libflash/libflash.h
new file mode 100644
index 000000000..9e83d4198
--- /dev/null
+++ b/roms/skiboot/libflash/libflash.h
@@ -0,0 +1,79 @@
+// SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
+/* Copyright 2013-2017 IBM Corp. */
+
+#ifndef __LIBFLASH_H
+#define __LIBFLASH_H
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <libflash/blocklevel.h>
+
+/* API status/return:
+ *
+ *  <0 = flash controller errors passed through,
+ *  0  = success
+ *  >0 = libflash error
+ */
+#include <libflash/errors.h>
+
+#ifndef MIN
+#define MIN(a, b)	((a) < (b) ? (a) : (b))
+#endif
+
+/* Flash chip, opaque */
+struct flash_chip;
+struct spi_flash_ctrl;
+
+int flash_init(struct spi_flash_ctrl *ctrl, struct blocklevel_device **bl,
+		struct flash_chip **flash_chip);
+void flash_exit(struct blocklevel_device *bl);
+
+/*
+ * Function which till call close on the underlying struct spi_flash_ctrl
+ */
+void flash_exit_close(struct blocklevel_device *bl, void (*close)(struct spi_flash_ctrl *ctrl));
+
+/* libflash sets the 4b mode automatically based on the flash
+ * size and controller capabilities but it can be overriden
+ */
+int flash_force_4b_mode(struct flash_chip *c, bool enable_4b);
+
+/*
+ * This provides a wapper around flash_read() on ECCed data. All params are
+ * the same as to flash_read(). Not passing true in ecc is akin to calling
+ * flash_read() directly.
+ *
+ * len is length of data without ecc attached therefore this will read beyond
+ * pos + len.
+ */
+int flash_read_corrected(struct blocklevel_device *bl, uint32_t pos, void *buf,
+		uint32_t len, bool ecc);
+
+/*
+ * This provides a wrapper around flash_write() on ECCed data. All params are
+ * the same as to flash_write(). Not passing true in ecc is akin to calling
+ * flash_write() directly.
+ *
+ * size is length of data without ECC attached therefore this will write beyond
+ * dst + size.
+ */
+int flash_write_corrected(struct blocklevel_device *bl, uint32_t dst, const void *src,
+		uint32_t size, bool verify, bool ecc);
+
+/*
+ * This provides a wrapper around flash_smart_write() on ECCed data. All
+ * params are the same as to flash_smart_write(). Not passing true in ecc is
+ * akin to calling flash_smart_write() directly.
+ *
+ * size is length of data without ECC attached therefore this will write beyond
+ * dst + size.
+ */
+int flash_smart_write_corrected(struct blocklevel_device *bl, uint32_t dst, const void *src,
+		      uint32_t size, bool ecc);
+
+/* chip erase may not be supported by all chips/controllers, get ready
+ * for FLASH_ERR_CHIP_ER_NOT_SUPPORTED
+ */
+int flash_erase_chip(struct flash_chip *c);
+
+#endif /* __LIBFLASH_H */