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| // SPDX-License-Identifier: GPL-2.0-or-later
| /*
| * NEC VR4100 series RTC 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/irq.h>
|
| static struct resource rtc_type1_resource[] __initdata = {
| {
| .start = 0x0b0000c0,
| .end = 0x0b0000df,
| .flags = IORESOURCE_MEM,
| },
| {
| .start = 0x0b0001c0,
| .end = 0x0b0001df,
| .flags = IORESOURCE_MEM,
| },
| {
| .start = ELAPSEDTIME_IRQ,
| .end = ELAPSEDTIME_IRQ,
| .flags = IORESOURCE_IRQ,
| },
| {
| .start = RTCLONG1_IRQ,
| .end = RTCLONG1_IRQ,
| .flags = IORESOURCE_IRQ,
| },
| };
|
| static struct resource rtc_type2_resource[] __initdata = {
| {
| .start = 0x0f000100,
| .end = 0x0f00011f,
| .flags = IORESOURCE_MEM,
| },
| {
| .start = 0x0f000120,
| .end = 0x0f00013f,
| .flags = IORESOURCE_MEM,
| },
| {
| .start = ELAPSEDTIME_IRQ,
| .end = ELAPSEDTIME_IRQ,
| .flags = IORESOURCE_IRQ,
| },
| {
| .start = RTCLONG1_IRQ,
| .end = RTCLONG1_IRQ,
| .flags = IORESOURCE_IRQ,
| },
| };
|
| static int __init vr41xx_rtc_add(void)
| {
| struct platform_device *pdev;
| struct resource *res;
| unsigned int num;
| int retval;
|
| pdev = platform_device_alloc("RTC", -1);
| if (!pdev)
| return -ENOMEM;
|
| switch (current_cpu_type()) {
| case CPU_VR4111:
| case CPU_VR4121:
| res = rtc_type1_resource;
| num = ARRAY_SIZE(rtc_type1_resource);
| break;
| case CPU_VR4122:
| case CPU_VR4131:
| case CPU_VR4133:
| res = rtc_type2_resource;
| num = ARRAY_SIZE(rtc_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_rtc_add);
|
|
