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-rw-r--r--Documentation/devicetree/bindings/bus/omap-ocp2scp.txt10
-rw-r--r--drivers/Kconfig2
-rw-r--r--drivers/Makefile2
-rw-r--r--drivers/bus/Kconfig15
-rw-r--r--drivers/bus/Makefile5
-rw-r--r--drivers/bus/omap-ocp2scp.c88
6 files changed, 122 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/bus/omap-ocp2scp.txt b/Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
new file mode 100644
index 000000000000..d2fe064a828b
--- /dev/null
+++ b/Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
@@ -0,0 +1,10 @@
+* OMAP OCP2SCP - ocp interface to scp interface
+
+properties:
+- compatible : Should be "ti,omap-ocp2scp"
+- #address-cells, #size-cells : Must be present if the device has sub-nodes
+- ranges : the child address space are mapped 1:1 onto the parent address space
+- ti,hwmods : must be "ocp2scp_usb_phy"
+
+Sub-nodes:
+All the devices connected to ocp2scp are described using sub-node to ocp2scp
diff --git a/drivers/Kconfig b/drivers/Kconfig
index ece958d3762e..324e958d5ac3 100644
--- a/drivers/Kconfig
+++ b/drivers/Kconfig
@@ -2,6 +2,8 @@ menu "Device Drivers"
source "drivers/base/Kconfig"
+source "drivers/bus/Kconfig"
+
source "drivers/connector/Kconfig"
source "drivers/mtd/Kconfig"
diff --git a/drivers/Makefile b/drivers/Makefile
index 5b421840c48d..f8cdeeb5c484 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -5,6 +5,8 @@
# Rewritten to use lists instead of if-statements.
#
+obj-y += bus/
+
# GPIO must come after pinctrl as gpios may need to mux pins etc
obj-y += pinctrl/
obj-y += gpio/
diff --git a/drivers/bus/Kconfig b/drivers/bus/Kconfig
new file mode 100644
index 000000000000..6270415107d0
--- /dev/null
+++ b/drivers/bus/Kconfig
@@ -0,0 +1,15 @@
+#
+# Bus Devices
+#
+
+menu "Bus devices"
+
+config OMAP_OCP2SCP
+ tristate "OMAP OCP2SCP DRIVER"
+ help
+ Driver to enable ocp2scp module which transforms ocp interface
+ protocol to scp protocol. In OMAP4, USB PHY is connected via
+ OCP2SCP and in OMAP5, both USB PHY and SATA PHY is connected via
+ OCP2SCP.
+
+endmenu
diff --git a/drivers/bus/Makefile b/drivers/bus/Makefile
new file mode 100644
index 000000000000..0ec50bc43d7c
--- /dev/null
+++ b/drivers/bus/Makefile
@@ -0,0 +1,5 @@
+#
+# Makefile for the bus drivers.
+#
+
+obj-$(CONFIG_OMAP_OCP2SCP) += omap-ocp2scp.o
diff --git a/drivers/bus/omap-ocp2scp.c b/drivers/bus/omap-ocp2scp.c
new file mode 100644
index 000000000000..9075ef8baf56
--- /dev/null
+++ b/drivers/bus/omap-ocp2scp.c
@@ -0,0 +1,88 @@
+/*
+ * omap-ocp2scp.c - transform ocp interface protocol to scp protocol
+ *
+ * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com
+ * 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.
+ *
+ * Author: Kishon Vijay Abraham I <kishon@ti.com>
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/err.h>
+#include <linux/pm_runtime.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+
+static int ocp2scp_remove_devices(struct device *dev, void *c)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+
+ platform_device_unregister(pdev);
+
+ return 0;
+}
+
+static int __devinit omap_ocp2scp_probe(struct platform_device *pdev)
+{
+ int ret;
+ struct device_node *np = pdev->dev.of_node;
+
+ if (np) {
+ ret = of_platform_populate(np, NULL, NULL, &pdev->dev);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to add resources for ocp2scp child\n");
+ goto err0;
+ }
+ }
+ pm_runtime_enable(&pdev->dev);
+
+ return 0;
+
+err0:
+ device_for_each_child(&pdev->dev, NULL, ocp2scp_remove_devices);
+
+ return ret;
+}
+
+static int __devexit omap_ocp2scp_remove(struct platform_device *pdev)
+{
+ pm_runtime_disable(&pdev->dev);
+ device_for_each_child(&pdev->dev, NULL, ocp2scp_remove_devices);
+
+ return 0;
+}
+
+#ifdef CONFIG_OF
+static const struct of_device_id omap_ocp2scp_id_table[] = {
+ { .compatible = "ti,omap-ocp2scp" },
+ {}
+};
+MODULE_DEVICE_TABLE(of, omap_usb2_id_table);
+#endif
+
+static struct platform_driver omap_ocp2scp_driver = {
+ .probe = omap_ocp2scp_probe,
+ .remove = __devexit_p(omap_ocp2scp_remove),
+ .driver = {
+ .name = "omap-ocp2scp",
+ .owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(omap_ocp2scp_id_table),
+ },
+};
+
+module_platform_driver(omap_ocp2scp_driver);
+
+MODULE_ALIAS("platform: omap-ocp2scp");
+MODULE_AUTHOR("Texas Instruments Inc.");
+MODULE_DESCRIPTION("OMAP OCP2SCP driver");
+MODULE_LICENSE("GPL v2");

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