1 files changed, 0 insertions, 220 deletions
diff --git a/meta-arm/meta-arm-bsp/recipes-kernel/linux/files/corstone1000/0002-Add-external-system-driver.patch b/meta-arm/meta-arm-bsp/recipes-kernel/linux/files/corstone1000/0002-Add-external-system-driver.patch
deleted file mode 100644
index d8d9488bcb..0000000000
--- a/meta-arm/meta-arm-bsp/recipes-kernel/linux/files/corstone1000/0002-Add-external-system-driver.patch
+++ /dev/null
@@ -1,220 +0,0 @@
-From 9eac502eacd36a4975ec34a3f076594fa4364032 Mon Sep 17 00:00:00 2001
-From: Emekcan <emekcan.aras@arm.com>
-Date: Fri, 19 Aug 2022 14:51:08 +0100
-Subject: [PATCH] Add external system driver
-
-Adds external system driver to control it
-from user-space. It provides run and reset
-functionality at the moment.
-
-Upstream-Status: Pending [Not submitted to upstream yet]
-Signed-off-by: Emekcan Aras <emekcan.aras@arm.com>
-Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>
----
- drivers/misc/Kconfig           |   1 +
- drivers/misc/Makefile          |   1 +
- drivers/misc/arm/Kconfig       |   5 ++
- drivers/misc/arm/Makefile      |   1 +
- drivers/misc/arm/extsys_ctrl.c | 151 +++++++++++++++++++++++++++++++++
- 5 files changed, 159 insertions(+)
- create mode 100644 drivers/misc/arm/Kconfig
- create mode 100644 drivers/misc/arm/Makefile
- create mode 100644 drivers/misc/arm/extsys_ctrl.c
-
-diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
-index 433aa4197785..912986abc46c 100644
---- a/drivers/misc/Kconfig
-+++ b/drivers/misc/Kconfig
-@@ -555,4 +555,5 @@ source "drivers/misc/cardreader/Kconfig"
- source "drivers/misc/uacce/Kconfig"
- source "drivers/misc/pvpanic/Kconfig"
- source "drivers/misc/mchp_pci1xxxx/Kconfig"
-+source "drivers/misc/arm/Kconfig"
- endmenu
-diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
-index 56de43943cd5..22e6561b8192 100644
---- a/drivers/misc/Makefile
-+++ b/drivers/misc/Makefile
-@@ -63,5 +63,6 @@ obj-$(CONFIG_HI6421V600_IRQ)	+= hi6421v600-irq.o
- obj-$(CONFIG_OPEN_DICE)		+= open-dice.o
- obj-$(CONFIG_GP_PCI1XXXX)	+= mchp_pci1xxxx/
- obj-$(CONFIG_VCPU_STALL_DETECTOR)	+= vcpu_stall_detector.o
-+obj-y				+= arm/
- obj-$(CONFIG_TMR_MANAGER)      += xilinx_tmr_manager.o
- obj-$(CONFIG_TMR_INJECT)	+= xilinx_tmr_inject.o
-diff --git a/drivers/misc/arm/Kconfig b/drivers/misc/arm/Kconfig
-new file mode 100644
-index 000000000000..9f1eb284e530
---- /dev/null
-+++ b/drivers/misc/arm/Kconfig
-@@ -0,0 +1,5 @@
-+config EXTSYS_CTRL
-+	tristate "Arm External System control driver"
-+	help
-+	  Say y here to enable support for external system control
-+	  driver for the Arm Corstone-700 and Corstone1000 platform
-\ No newline at end of file
-diff --git a/drivers/misc/arm/Makefile b/drivers/misc/arm/Makefile
-new file mode 100644
-index 000000000000..1ca3084cf8a0
---- /dev/null
-+++ b/drivers/misc/arm/Makefile
-@@ -0,0 +1 @@
-+obj-$(CONFIG_EXTSYS_CTRL)	+= extsys_ctrl.o
-diff --git a/drivers/misc/arm/extsys_ctrl.c b/drivers/misc/arm/extsys_ctrl.c
-new file mode 100644
-index 000000000000..7929070ff43d
---- /dev/null
-+++ b/drivers/misc/arm/extsys_ctrl.c
-@@ -0,0 +1,151 @@
-+// SPDX-License-Identifier: GPL-2.0
-+/*
-+ * Arm Corstone700 and Corstone1000 external system reset control driver
-+ *
-+ * Copyright (C) 2019 Arm Ltd.
-+ *
-+ */
-+
-+#include <linux/fs.h>
-+#include <linux/clk.h>
-+#include <linux/err.h>
-+#include <linux/interrupt.h>
-+#include <linux/io.h>
-+#include <linux/kernel.h>
-+#include <linux/mod_devicetable.h>
-+#include <linux/module.h>
-+#include <linux/platform_device.h>
-+#include <linux/miscdevice.h>
-+#include <linux/init.h>
-+
-+#define EXTSYS_DRV_NAME		"extsys_ctrl"
-+#define EXTSYS_MAX_DEVS		 4
-+
-+#define EXTSYS_RST_SIZE		U(0x8)
-+#define EXTSYS_RST_CTRL_OFF	U(0x0)
-+#define EXTSYS_RST_ST_OFF	U(0x4)
-+
-+/* External system reset control indexes */
-+#define EXTSYS_CPU_WAIT		(0x0)
-+#define EXTSYS_RST_REQ		(0x1)
-+
-+/* External system reset status masks */
-+#define EXTSYS_RST_ST_ACK_OFF	U(0x1)
-+
-+/* No Reset Requested */
-+#define EXTSYS_RST_ST_ACK_NRR	(0x0 << EXTSYS_RST_ST_ACK_OFF)
-+
-+/* Reset Request Complete */
-+#define EXTSYS_RST_ST_ACK_RRC	(0x2 << EXTSYS_RST_ST_ACK_OFF)
-+
-+/* Reset Request Unable to Complete */
-+#define EXTSYS_RST_ST_ACK_RRUC	(0x3 << EXTSYS_RST_ST_ACK_OFF)
-+
-+/* IOCTL commands */
-+#define EXTSYS_CPU_WAIT_DISABLE	0x0
-+#define EXTSYS_RESET_REQ_ENABLE	0x1
-+
-+struct extsys_ctrl {
-+	struct miscdevice miscdev;
-+	void __iomem *reset_reg;
-+	void __iomem *set_reg;
-+};
-+
-+#define CLEAR_BIT(addr, index) writel(readl(addr) & ~(1UL << index), addr)
-+#define SET_BIT(addr, index) writel(readl(addr) | (1UL << index), addr)
-+
-+static long extsys_ctrl_ioctl(struct file *f, unsigned int cmd,
-+			      unsigned long arg)
-+{
-+	struct extsys_ctrl *extsys;
-+
-+	extsys = container_of(f->private_data, struct extsys_ctrl, miscdev);
-+
-+	switch (cmd) {
-+	case EXTSYS_CPU_WAIT_DISABLE:
-+		CLEAR_BIT(extsys->reset_reg, EXTSYS_CPU_WAIT);
-+		break;
-+	case EXTSYS_RESET_REQ_ENABLE:
-+		SET_BIT(extsys->reset_reg, EXTSYS_RST_REQ);
-+		break;
-+	default:
-+		break;
-+	}
-+
-+	return 0;
-+}
-+
-+static const struct file_operations extsys_ctrl_fops = {
-+	.owner = THIS_MODULE,
-+	.unlocked_ioctl = extsys_ctrl_ioctl,
-+};
-+
-+static int extsys_ctrl_probe(struct platform_device *pdev)
-+{
-+	struct device *dev = &pdev->dev;
-+	struct extsys_ctrl *extsys;
-+	struct resource *res;
-+	void __iomem *reset_reg;
-+	void __iomem *set_reg;
-+	int ret;
-+
-+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "rstreg");
-+	reset_reg = devm_ioremap_resource(dev, res);
-+	if (IS_ERR(reset_reg))
-+		return PTR_ERR(reset_reg);
-+
-+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "streg");
-+	set_reg = devm_ioremap_resource(dev, res);
-+	if (IS_ERR(set_reg))
-+		return PTR_ERR(set_reg);
-+
-+	extsys = devm_kzalloc(dev, sizeof(*extsys), GFP_KERNEL);
-+	if (!extsys)
-+		return -ENOMEM;
-+
-+	extsys->reset_reg = reset_reg;
-+	extsys->set_reg = set_reg;
-+
-+	extsys->miscdev.minor = MISC_DYNAMIC_MINOR;
-+	extsys->miscdev.name = EXTSYS_DRV_NAME;
-+	extsys->miscdev.fops = &extsys_ctrl_fops;
-+	extsys->miscdev.parent = dev;
-+
-+	ret = misc_register(&extsys->miscdev);
-+	if (ret)
-+		return ret;
-+
-+	dev_info(dev, "external system controller ready\n");
-+
-+	return 0;
-+}
-+
-+static int extsys_ctrl_remove(struct platform_device *pdev)
-+{
-+	struct extsys_ctrl *extsys = dev_get_drvdata(&pdev->dev);
-+
-+	misc_deregister(&extsys->miscdev);
-+
-+	return 0;
-+}
-+
-+static const struct of_device_id extsys_ctrl_match[] = {
-+	{ .compatible = "arm,extsys_ctrl" },
-+	{ },
-+};
-+MODULE_DEVICE_TABLE(of, extsys_ctrl_match);
-+
-+static struct platform_driver extsys_ctrl_driver = {
-+	.driver = {
-+		.name = EXTSYS_DRV_NAME,
-+		.of_match_table = extsys_ctrl_match,
-+	},
-+	.probe = extsys_ctrl_probe,
-+	.remove = extsys_ctrl_remove,
-+};
-+module_platform_driver(extsys_ctrl_driver);
-+
-+MODULE_LICENSE("GPL v2");
-+MODULE_DESCRIPTION("Arm External System Control Driver");
-+MODULE_AUTHOR("Morten Borup Petersen");
-+MODULE_AUTHOR("Rui Miguel Silva <rui.silva@arm.com>");