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105 lines
1.9 KiB
105 lines
1.9 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* NEC VR4100 series RTC platform device. |
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* |
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* Copyright (C) 2007 Yoichi Yuasa <[email protected]> |
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*/ |
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#include <linux/errno.h> |
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#include <linux/init.h> |
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#include <linux/smp.h> |
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#include <linux/ioport.h> |
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#include <linux/platform_device.h> |
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#include <asm/cpu.h> |
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#include <asm/vr41xx/irq.h> |
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static struct resource rtc_type1_resource[] __initdata = { |
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{ |
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.start = 0x0b0000c0, |
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.end = 0x0b0000df, |
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.flags = IORESOURCE_MEM, |
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}, |
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{ |
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.start = 0x0b0001c0, |
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.end = 0x0b0001df, |
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.flags = IORESOURCE_MEM, |
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}, |
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{ |
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.start = ELAPSEDTIME_IRQ, |
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.end = ELAPSEDTIME_IRQ, |
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.flags = IORESOURCE_IRQ, |
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}, |
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{ |
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.start = RTCLONG1_IRQ, |
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.end = RTCLONG1_IRQ, |
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.flags = IORESOURCE_IRQ, |
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}, |
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}; |
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static struct resource rtc_type2_resource[] __initdata = { |
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{ |
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.start = 0x0f000100, |
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.end = 0x0f00011f, |
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.flags = IORESOURCE_MEM, |
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}, |
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{ |
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.start = 0x0f000120, |
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.end = 0x0f00013f, |
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.flags = IORESOURCE_MEM, |
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}, |
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{ |
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.start = ELAPSEDTIME_IRQ, |
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.end = ELAPSEDTIME_IRQ, |
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.flags = IORESOURCE_IRQ, |
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}, |
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{ |
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.start = RTCLONG1_IRQ, |
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.end = RTCLONG1_IRQ, |
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.flags = IORESOURCE_IRQ, |
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}, |
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}; |
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static int __init vr41xx_rtc_add(void) |
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{ |
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struct platform_device *pdev; |
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struct resource *res; |
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unsigned int num; |
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int retval; |
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pdev = platform_device_alloc("RTC", -1); |
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if (!pdev) |
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return -ENOMEM; |
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switch (current_cpu_type()) { |
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case CPU_VR4111: |
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case CPU_VR4121: |
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res = rtc_type1_resource; |
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num = ARRAY_SIZE(rtc_type1_resource); |
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break; |
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case CPU_VR4122: |
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case CPU_VR4131: |
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case CPU_VR4133: |
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res = rtc_type2_resource; |
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num = ARRAY_SIZE(rtc_type2_resource); |
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break; |
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default: |
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retval = -ENODEV; |
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goto err_free_device; |
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} |
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retval = platform_device_add_resources(pdev, res, num); |
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if (retval) |
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goto err_free_device; |
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retval = platform_device_add(pdev); |
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if (retval) |
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goto err_free_device; |
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return 0; |
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err_free_device: |
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platform_device_put(pdev); |
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return retval; |
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} |
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device_initcall(vr41xx_rtc_add);
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