1 files changed, 110 insertions, 0 deletions

diff --git a/arch/mips/vr41xx/common/giu.c b/arch/mips/vr41xx/common/giu.c
new file mode 100644
index 000000000..398c62641
--- /dev/null
+++ b/arch/mips/vr41xx/common/giu.c
@@ -0,0 +1,110 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  NEC VR4100 series GIU platform device.
+ *
+ *  Copyright (C) 2007  Yoichi Yuasa <yuasa@linux-mips.org>
+ */
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/smp.h>
+#include <linux/ioport.h>
+#include <linux/platform_device.h>
+
+#include <asm/cpu.h>
+#include <asm/vr41xx/giu.h>
+#include <asm/vr41xx/irq.h>
+
+static struct resource giu_50pins_pullupdown_resource[] __initdata = {
+        {
+                .start  = 0x0b000100,
+                .end    = 0x0b00011f,
+                .flags  = IORESOURCE_MEM,
+        },
+        {
+                .start  = 0x0b0002e0,
+                .end    = 0x0b0002e3,
+                .flags  = IORESOURCE_MEM,
+        },
+        {
+                .start  = GIUINT_IRQ,
+                .end    = GIUINT_IRQ,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static struct resource giu_36pins_resource[] __initdata = {
+        {
+                .start  = 0x0f000140,
+                .end    = 0x0f00015f,
+                .flags  = IORESOURCE_MEM,
+        },
+        {
+                .start  = GIUINT_IRQ,
+                .end    = GIUINT_IRQ,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static struct resource giu_48pins_resource[] __initdata = {
+        {
+                .start  = 0x0f000140,
+                .end    = 0x0f000167,
+                .flags  = IORESOURCE_MEM,
+        },
+        {
+                .start  = GIUINT_IRQ,
+                .end    = GIUINT_IRQ,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static int __init vr41xx_giu_add(void)
+{
+        struct platform_device *pdev;
+        struct resource *res;
+        unsigned int num;
+        int retval;
+
+        pdev = platform_device_alloc("GIU", -1);
+        if (!pdev)
+                return -ENOMEM;
+
+        switch (current_cpu_type()) {
+        case CPU_VR4111:
+        case CPU_VR4121:
+                pdev->id = GPIO_50PINS_PULLUPDOWN;
+                res = giu_50pins_pullupdown_resource;
+                num = ARRAY_SIZE(giu_50pins_pullupdown_resource);
+                break;
+        case CPU_VR4122:
+        case CPU_VR4131:
+                pdev->id = GPIO_36PINS;
+                res = giu_36pins_resource;
+                num = ARRAY_SIZE(giu_36pins_resource);
+                break;
+        case CPU_VR4133:
+                pdev->id = GPIO_48PINS_EDGE_SELECT;
+                res = giu_48pins_resource;
+                num = ARRAY_SIZE(giu_48pins_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_giu_add);