1 files changed, 88 insertions, 0 deletions
diff --git a/drivers/staging/fsl_qbman/qbman_driver.c b/drivers/staging/fsl_qbman/qbman_driver.c
new file mode 100644
index 0000000..ab487d5
--- /dev/null
+++ b/drivers/staging/fsl_qbman/qbman_driver.c
@@ -0,0 +1,88 @@
+/* Copyright 2013 Freescale Semiconductor, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *	 notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *	 notice, this list of conditions and the following disclaimer in the
+ *	 documentation and/or other materials provided with the distribution.
+ *     * Neither the name of Freescale Semiconductor nor the
+ *	 names of its contributors may be used to endorse or promote products
+ *	 derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <linux/time.h>
+#include "qman_private.h"
+#include "bman_private.h"
+__init void qman_init_early(void);
+__init void bman_init_early(void);
+
+static __init int qbman_init(void)
+{
+	struct device_node *dn;
+	u32 is_portal_available;
+
+	bman_init();
+	qman_init();
+
+	is_portal_available = 0;
+	for_each_compatible_node(dn, NULL, "fsl,qman-portal") {
+		if (!of_device_is_available(dn))
+			continue;
+		else
+			is_portal_available = 1;
+	}
+
+	if (!qman_have_ccsr() && is_portal_available) {
+		struct qman_fq fq = {
+				.fqid = 1
+		};
+		struct qm_mcr_queryfq_np np;
+		int err, retry = CONFIG_FSL_QMAN_INIT_TIMEOUT;
+		struct timespec nowts, diffts, startts = current_kernel_time();
+		/* Loop while querying given fqid succeeds or time out */
+		while (1) {
+			err = qman_query_fq_np(&fq, &np);
+			if (!err) {
+				/* success, control-plane has configured QMan */
+				break;
+			} else if (err != -ERANGE) {
+				pr_err("QMan: I/O error, continuing anyway\n");
+				break;
+			}
+			nowts = current_kernel_time();
+			diffts = timespec_sub(nowts, startts);
+			if (diffts.tv_sec > 0) {
+				if (!retry--) {
+					pr_err("QMan: time out, control-plane"
+								" dead?\n");
+					break;
+				}
+				pr_warn("QMan: polling for the control-plane"
+							" (%d)\n", retry);
+			}
+		}
+	}
+	bman_resource_init();
+	qman_resource_init();
+	return 0;
+}
+subsys_initcall(qbman_init);