drivers/intel/fsp2_0: Add SiliconInit API

This adds SiliconInit API that is needed to be called after memory
has been trained. This call is needed to let the blob do various
initialisations of IP blocks.

Change-Id: I35e02f22174c8392e55ac869265a19c4309932e5
Signed-off-by: Andrey Petrov <andrey.petrov@intel.com>
Reviewed-on: https://review.coreboot.org/13799
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

1 files changed, 59 insertions, 0 deletions

diff --git a/src/drivers/intel/fsp2_0/silicon_init.c b/src/drivers/intel/fsp2_0/silicon_init.c
new file mode 100644
index 0000000000..66043c8a49
--- /dev/null
+++ b/src/drivers/intel/fsp2_0/silicon_init.c
@@ -0,0 +1,59 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2015 Intel Corp.
+ * (Written by Andrey Petrov <andrey.petrov@intel.com> 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.
+ */
+
+#include <arch/cpu.h>
+#include <cbfs.h>
+#include <console/console.h>
+#include <fsp/api.h>
+#include <fsp/util.h>
+#include <string.h>
+
+struct fsp_header fsps_hdr;
+
+typedef asmlinkage enum fsp_status (*fsp_silicon_init_fn)
+				   (void *silicon_upd);
+
+static enum fsp_status do_silicon_init(struct fsp_header *hdr)
+{
+	struct FSPS_UPD upd, *supd;
+	fsp_silicon_init_fn silicon_init;
+	enum fsp_status status;
+
+	supd = (struct FSPS_UPD *) (hdr->cfg_region_offset + hdr->image_base);
+
+	if (supd->FspUpdHeader.Signature != FSPS_UPD_SIGNATURE) {
+		printk(BIOS_ERR, "Invalid FSPS signature\n");
+		return FSP_INCOMPATIBLE_VERSION;
+	}
+
+	memcpy(&upd, supd, sizeof(upd));
+
+	/* Give SoC/mainboard a chance to populate entries */
+	platform_fsp_silicon_init_params_cb(&upd);
+
+	silicon_init = (void *) (hdr->image_base +
+						hdr->silicon_init_entry_offset);
+
+	status = silicon_init(&upd);
+	printk(BIOS_DEBUG, "FspSiliconInit returned 0x%08x\n", status);
+	return status;
+}
+
+enum fsp_status fsp_silicon_init(struct range_entry *range)
+{
+	/* Load FSP-S and save FSP header. We will need it for Notify */
+	/* TODO: do not hardcode CBFS file names */
+	if (fsp_load_binary(&fsps_hdr, "blobs/fsps.bin", range) != CB_SUCCESS)
+		return FSP_NOT_FOUND;
+
+	return do_silicon_init(&fsps_hdr);
+}