1 files changed, 87 insertions, 0 deletions
diff --git a/platforms/bmc/pnor.c b/platforms/bmc/pnor.c
new file mode 100644
index 00000000..878615df
--- /dev/null
+++ b/platforms/bmc/pnor.c
@@ -0,0 +1,87 @@
+/* Copyright 2013-2014 IBM Corp.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * 	http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+ * implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+#include <skiboot.h>
+#include <device.h>
+#include <console.h>
+#include <opal.h>
+#include <libflash/libflash.h>
+#include <libflash/libffs.h>
+
+#include "bmc.h"
+#include "ast.h"
+
+static struct spi_flash_ctrl *pnor_ctrl;
+static struct flash_chip *pnor_chip;
+static struct ffs_handle *pnor_ffs;
+
+int pnor_init(void)
+{
+	uint32_t nv_part, nv_start, nv_size;
+	int rc;
+
+	/* Open controller, flash and ffs */
+	rc = ast_sf_open(AST_SF_TYPE_PNOR, &pnor_ctrl);
+	if (rc) {
+		prerror("PLAT: Failed to open PNOR flash controller\n");
+		goto fail;
+	}
+	rc = flash_init(pnor_ctrl, &pnor_chip);
+	if (rc) {
+		prerror("PLAT: Failed to open init PNOR driver\n");
+		goto fail;
+	}
+	rc = ffs_open_flash(pnor_chip, 0, 0, &pnor_ffs);
+	if (rc) {
+		prerror("PLAT: Failed to parse FFS partition map\n");
+		goto fail;
+	}
+
+	/*
+	 * Grab NVRAM and initialize the flash_nvram module
+	 *
+	 * Note: Ignore actual size for now ... some images have
+	 * it setup incorrectly.
+	 */
+	rc = ffs_lookup_part(pnor_ffs, "NVRAM", &nv_part);
+	if (rc) {
+		prerror("PLAT: No NVRAM partition in PNOR\n");
+		return OPAL_HARDWARE;
+	}
+	rc = ffs_part_info(pnor_ffs, nv_part, NULL,
+			   &nv_start, &nv_size, NULL);
+	if (rc) {
+		prerror("PLAT: Failed to get NVRAM partition info\n");
+		return OPAL_HARDWARE;
+	}
+	flash_nvram_init(pnor_chip, nv_start, nv_size);
+
+	return 0;
+ fail:
+	if (pnor_ffs)
+		ffs_close(pnor_ffs);
+	pnor_ffs = NULL;
+	if (pnor_chip)
+		flash_exit(pnor_chip);
+	pnor_chip = NULL;
+	if (pnor_ctrl)
+		ast_sf_close(pnor_ctrl);
+	pnor_ctrl = NULL;
+
+	return rc;
+}
+