/* * NEC VR4100 series RTC platform device. * * Copyright (C) 2007 Yoichi Yuasa <yuasa@linux-mips.org> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #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);