Patch set updated for coreboot: driver/intel/fsp2_0: Add utility to load an FSP binary to memory

[Alexandru Gagniuc]

Alexandru Gagniuc ([e-mail]) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/13336

-gerrit

commit f692aecc92c94a6ec34aa65d68a73eac6a816279
Author: Alexandru Gagniuc 
Date:   Tue Nov 3 16:54:43 2015 -0800

driver/intel/fsp2_0: Add utility to load an FSP binary to memory

Since FSP 2.0 is split into several binaries, implement a common
    function to load such binaries into memory.

Change-Id: Id4a9024163034d8f53eff6fa2f28a7078d690bdc
    Signed-off-by: Alexandru Gagniuc 
---
 src/drivers/intel/fsp2_0/include/fsp/util.h | 21 ++++++++++++++++++
 src/drivers/intel/fsp2_0/util.c             | 34 ++++++++++++++++++++++++++++-
 2 files changed, 54 insertions(+), 1 deletion(-)

diff --git a/src/drivers/intel/fsp2_0/include/fsp/util.h b/src/drivers/intel/fsp2_0/include/fsp/util.h
new file mode 100644
index 0000000..abdbcf0
--- /dev/null
+++ b/src/drivers/intel/fsp2_0/include/fsp/util.h
@@ -0,0 +1,21 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2015 Intel Corp.
+ * (Written by Alexandru Gagniuc  for Intel Corp.)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef _FSP2_0_UTIL_H_
+#define _FSP2_0_UTIL_H_
+
+#include <fsp/info_header.h>
+
+/* Load an FSP binary into CBFS, and fill the associated fsp_header struct */
+enum cb_err fsp_load_binary(struct fsp_header *hdr, const char *name);
+
+#endif /* _FSP2_0_UTIL_H_ */
diff --git a/src/drivers/intel/fsp2_0/util.c b/src/drivers/intel/fsp2_0/util.c
index e1b77a8..405021b 100644
--- a/src/drivers/intel/fsp2_0/util.c
+++ b/src/drivers/intel/fsp2_0/util.c
@@ -3,6 +3,7 @@
  *
  * Copyright (C) 2015 Intel Corp.
  * (Written by Alexandru Gagniuc  for Intel Corp.)
+ * (Written by Andrey Petrov  for Intel Corp.)
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -11,8 +12,9 @@
  */

#include <arch/io.h>
+#include <cbfs.h>
 #include <console/console.h>
-#include <fsp/info_header.h>
+#include <fsp/util.h>
 #include <lib.h>
 #include <string.h>

@@ -68,3 +70,33 @@ void fsp_print_header_info(const struct fsp_header *hdr)
           hdr->silicon_init_entry_offset,
           hdr->notify_phase_entry_offset);
 }
+
+enum cb_err fsp_load_binary(struct fsp_header *hdr, const char *name)
+{
+	struct cbfsf file_desc;
+	struct region_device file_data;
+	size_t fsp_load_size;
+	void *membase;
+
+	if (cbfs_boot_locate(&file_desc, name, NULL)) {
+		printk(BIOS_ERR, "Could not locate %s in CBFS\n", name);
+		return CB_ERR;
+	}
+
+	cbfs_file_data(&file_data, &file_desc);
+
+	/* Map just enough of the file to be able to parse the header. */
+	membase = rdev_mmap(&file_data, 0, FSP_HDR_OFFSET + FSP_HDR_LEN);
+	if (fsp_identify(hdr, membase) != CB_SUCCESS) {
+		printk(BIOS_ERR, "%s did not have a valid FSP header\n", name);
+		return CB_ERR;
+	}
+
+	fsp_print_header_info(hdr);
+
+	/* Load binary into memory. */
+	fsp_load_size = MIN(hdr->image_size, file_data.region.size);
+	rdev_readat(&file_data, (void *)hdr->image_base, 0, fsp_load_size);
+
+	return CB_SUCCESS;
+}