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| // 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);
|
|
