111 lines
2.1 KiB
C
111 lines
2.1 KiB
C
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// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* NEC VR4100 series GIU platform device.
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*
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* Copyright (C) 2007 Yoichi Yuasa <yuasa@linux-mips.org>
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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/giu.h>
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#include <asm/vr41xx/irq.h>
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static struct resource giu_50pins_pullupdown_resource[] __initdata = {
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{
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.start = 0x0b000100,
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.end = 0x0b00011f,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = 0x0b0002e0,
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.end = 0x0b0002e3,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = GIUINT_IRQ,
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.end = GIUINT_IRQ,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct resource giu_36pins_resource[] __initdata = {
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{
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.start = 0x0f000140,
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.end = 0x0f00015f,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = GIUINT_IRQ,
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.end = GIUINT_IRQ,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct resource giu_48pins_resource[] __initdata = {
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{
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.start = 0x0f000140,
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.end = 0x0f000167,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = GIUINT_IRQ,
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.end = GIUINT_IRQ,
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.flags = IORESOURCE_IRQ,
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},
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};
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static int __init vr41xx_giu_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("GIU", -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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pdev->id = GPIO_50PINS_PULLUPDOWN;
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res = giu_50pins_pullupdown_resource;
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num = ARRAY_SIZE(giu_50pins_pullupdown_resource);
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break;
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case CPU_VR4122:
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case CPU_VR4131:
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pdev->id = GPIO_36PINS;
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res = giu_36pins_resource;
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num = ARRAY_SIZE(giu_36pins_resource);
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break;
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case CPU_VR4133:
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pdev->id = GPIO_48PINS_EDGE_SELECT;
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res = giu_48pins_resource;
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num = ARRAY_SIZE(giu_48pins_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_giu_add);
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