File-copy from v4.4.100
This is the result of 'cp' from a linux-stable tree with the 'v4.4.100'
tag checked out (commit 26d6298789e695c9f627ce49a7bbd2286405798a) on
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Please refer to that tree for all history prior to this point.
Change-Id: I8a9ee2aea93cd29c52c847d0ce33091a73ae6afe
diff --git a/arch/mips/vr41xx/common/siu.c b/arch/mips/vr41xx/common/siu.c
new file mode 100644
index 0000000..bbd45d2
--- /dev/null
+++ b/arch/mips/vr41xx/common/siu.c
@@ -0,0 +1,155 @@
+/*
+ * NEC VR4100 series SIU platform device.
+ *
+ * Copyright (C) 2007-2008 Yoichi Yuasa <yuasa@linux-mips.org>
+ *
+ * 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.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/platform_device.h>
+#include <linux/serial_core.h>
+#include <linux/irq.h>
+
+#include <asm/cpu.h>
+#include <asm/vr41xx/siu.h>
+
+static unsigned int siu_type1_ports[SIU_PORTS_MAX] __initdata = {
+ PORT_VR41XX_SIU,
+ PORT_UNKNOWN,
+};
+
+static struct resource siu_type1_resource[] __initdata = {
+ {
+ .start = 0x0c000000,
+ .end = 0x0c00000a,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = SIU_IRQ,
+ .end = SIU_IRQ,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static unsigned int siu_type2_ports[SIU_PORTS_MAX] __initdata = {
+ PORT_VR41XX_SIU,
+ PORT_VR41XX_DSIU,
+};
+
+static struct resource siu_type2_resource[] __initdata = {
+ {
+ .start = 0x0f000800,
+ .end = 0x0f00080a,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = 0x0f000820,
+ .end = 0x0f000829,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = SIU_IRQ,
+ .end = SIU_IRQ,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .start = DSIU_IRQ,
+ .end = DSIU_IRQ,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static int __init vr41xx_siu_add(void)
+{
+ struct platform_device *pdev;
+ struct resource *res;
+ unsigned int num;
+ int retval;
+
+ pdev = platform_device_alloc("SIU", -1);
+ if (!pdev)
+ return -ENOMEM;
+
+ switch (current_cpu_type()) {
+ case CPU_VR4111:
+ case CPU_VR4121:
+ pdev->dev.platform_data = siu_type1_ports;
+ res = siu_type1_resource;
+ num = ARRAY_SIZE(siu_type1_resource);
+ break;
+ case CPU_VR4122:
+ case CPU_VR4131:
+ case CPU_VR4133:
+ pdev->dev.platform_data = siu_type2_ports;
+ res = siu_type2_resource;
+ num = ARRAY_SIZE(siu_type2_resource);
+ break;
+ default:
+ retval = -ENODEV;
+ goto err_free_device;
+ }
+
+ retval = platform_device_add_resources(pdev, res, num);
+ if (retval)
+ goto err_free_device;
+
+ retval = platform_device_add(pdev);
+ if (retval)
+ goto err_free_device;
+
+ return 0;
+
+err_free_device:
+ platform_device_put(pdev);
+
+ return retval;
+}
+device_initcall(vr41xx_siu_add);
+
+void __init vr41xx_siu_setup(void)
+{
+ struct uart_port port;
+ struct resource *res;
+ unsigned int *type;
+ int i;
+
+ switch (current_cpu_type()) {
+ case CPU_VR4111:
+ case CPU_VR4121:
+ type = siu_type1_ports;
+ res = siu_type1_resource;
+ break;
+ case CPU_VR4122:
+ case CPU_VR4131:
+ case CPU_VR4133:
+ type = siu_type2_ports;
+ res = siu_type2_resource;
+ break;
+ default:
+ return;
+ }
+
+ for (i = 0; i < SIU_PORTS_MAX; i++) {
+ port.line = i;
+ port.type = type[i];
+ if (port.type == PORT_UNKNOWN)
+ break;
+ port.mapbase = res[i].start;
+ port.membase = (unsigned char __iomem *)KSEG1ADDR(res[i].start);
+ vr41xx_siu_early_setup(&port);
+ }
+}