From: Matthew Gerlach <matthew.gerlach@xxxxxxxxxxxxxxx>
This adds a platform bus driver for a fpga-mgr driver
that uses the Altera Partial Reconfiguration IP component.
Signed-off-by: Matthew Gerlach <matthew.gerlach@xxxxxxxxxxxxxxx>
---
v6:
add MODULE_LICENSE/DESCRIPTION/AUTHOR as suggested by Anatolij Gustschin
<agust@xxxxxxx>
v5: fix comment as suggested by Rob Herring <robh@xxxxxxxxxx>
v4: v3 patch set mistakenly sent out labeled as v4
v3:
s/altr,pr-ip/altr,a10-pr-ip/
s/alt_pr_probe/alt_pr_register/
s/alt_pr_remove/alt_pr_unregister/
fix error found by kbuild robot with more precise Kconfig depends
v2: s/altr,pr-ip-core/altr,pr-ip/
---
drivers/fpga/Kconfig | 7 ++++
drivers/fpga/Makefile | 1 +
drivers/fpga/altera-pr-ip-core-plat.c | 68 +++++++++++++++++++++++++++++++++++
3 files changed, 76 insertions(+)
create mode 100644 drivers/fpga/altera-pr-ip-core-plat.c
diff --git a/drivers/fpga/Kconfig b/drivers/fpga/Kconfig
index 9dd8da1..43e004a 100644
--- a/drivers/fpga/Kconfig
+++ b/drivers/fpga/Kconfig
@@ -81,6 +81,13 @@ config ALTERA_PR_IP_CORE
help
Core driver support for Altera Partial Reconfiguration IP component
+config ALTERA_PR_IP_CORE_PLAT
+ tristate "Platform support of Altera Partial Reconfiguration IP Core"
+ depends on ALTERA_PR_IP_CORE && OF && HAS_IOMEM
+ help
+ Platform driver support for Altera Partial Reconfiguration IP
+ component
+
endif # FPGA
endmenu
diff --git a/drivers/fpga/Makefile b/drivers/fpga/Makefile
index 916d67e..17881a5 100644
--- a/drivers/fpga/Makefile
+++ b/drivers/fpga/Makefile
@@ -12,6 +12,7 @@ obj-$(CONFIG_FPGA_MGR_SOCFPGA_A10) += socfpga-a10.o
obj-$(CONFIG_FPGA_MGR_TS73XX) += ts73xx-fpga.o
obj-$(CONFIG_FPGA_MGR_ZYNQ_FPGA) += zynq-fpga.o
obj-$(CONFIG_ALTERA_PR_IP_CORE) += altera-pr-ip-core.o
+obj-$(CONFIG_ALTERA_PR_IP_CORE_PLAT) += altera-pr-ip-core-plat.o
# FPGA Bridge Drivers
obj-$(CONFIG_FPGA_BRIDGE) += fpga-bridge.o
diff --git a/drivers/fpga/altera-pr-ip-core-plat.c b/drivers/fpga/altera-pr-ip-core-plat.c
new file mode 100644
index 0000000..8fb36b8
--- /dev/null
+++ b/drivers/fpga/altera-pr-ip-core-plat.c
@@ -0,0 +1,68 @@
+/*
+ * Driver for Altera Partial Reconfiguration IP Core
+ *
+ * Copyright (C) 2016-2017 Intel Corporation
+ *
+ * Based on socfpga-a10.c Copyright (C) 2015-2016 Altera Corporation
+ * by Alan Tull <atull@xxxxxxxxxxxxxxxxxxxxx>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+#include <linux/fpga/altera-pr-ip-core.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+
+static int alt_pr_platform_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ void __iomem *reg_base;
+ struct resource *res;
+
+ /* First mmio base is for register access */
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+
+ reg_base = devm_ioremap_resource(dev, res);
+
+ if (IS_ERR(reg_base))
+ return PTR_ERR(reg_base);
+
+ return alt_pr_register(dev, reg_base);
+}
+
+static int alt_pr_platform_remove(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+
+ return alt_pr_unregister(dev);
+}
+
+static const struct of_device_id alt_pr_of_match[] = {
+ { .compatible = "altr,a10-pr-ip", },
+ {},
+};
+
+MODULE_DEVICE_TABLE(of, alt_pr_of_match);
+
+static struct platform_driver alt_pr_platform_driver = {
+ .probe = alt_pr_platform_probe,
+ .remove = alt_pr_platform_remove,
+ .driver = {
+ .name = "alt_a10_pr_ip",
+ .of_match_table = alt_pr_of_match,
+ },
+};
+
+module_platform_driver(alt_pr_platform_driver);
+MODULE_AUTHOR("Matthew Gerlach <matthew.gerlach@xxxxxxxxxxxxxxx>");
+MODULE_DESCRIPTION("Altera Partial Reconfiguration IP Platform Driver");
+MODULE_LICENSE("GPL v2");
--
2.7.4
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