diff options
| -rw-r--r-- | arch/m68k/include/asm/rtc.h | 7 | ||||
| -rw-r--r-- | arch/m68k/kernel/time.c | 18 | ||||
| -rw-r--r-- | arch/parisc/Kconfig | 2 | ||||
| -rw-r--r-- | arch/parisc/kernel/time.c | 6 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/ps3.h | 3 | ||||
| -rw-r--r-- | arch/powerpc/kernel/time.c | 16 | ||||
| -rw-r--r-- | arch/powerpc/platforms/ps3/os-area.c | 2 | ||||
| -rw-r--r-- | arch/powerpc/platforms/ps3/platform.h | 2 | ||||
| -rw-r--r-- | arch/powerpc/platforms/ps3/setup.c | 2 | ||||
| -rw-r--r-- | arch/powerpc/platforms/ps3/time.c | 26 | ||||
| -rw-r--r-- | drivers/rtc/Kconfig | 31 | ||||
| -rw-r--r-- | drivers/rtc/Makefile | 4 | ||||
| -rw-r--r-- | drivers/rtc/rtc-generic.c | 84 | ||||
| -rw-r--r-- | drivers/rtc/rtc-parisc.c | 86 | ||||
| -rw-r--r-- | drivers/rtc/rtc-ppc.c | 69 | ||||
| -rw-r--r-- | drivers/rtc/rtc-ps3.c | 104 |
16 files changed, 267 insertions, 195 deletions
diff --git a/arch/m68k/include/asm/rtc.h b/arch/m68k/include/asm/rtc.h index 5d3e0385984..a4d08ea122e 100644 --- a/arch/m68k/include/asm/rtc.h +++ b/arch/m68k/include/asm/rtc.h @@ -36,13 +36,16 @@ static inline unsigned int get_rtc_time(struct rtc_time *time) * RTC has RTC_DAY_OF_WEEK, we ignore it, as it is only updated * by the RTC when initially set to a non-zero value. */ - mach_hwclk(0, time); + if (mach_hwclk) + mach_hwclk(0, time); return RTC_24H; } static inline int set_rtc_time(struct rtc_time *time) { - return mach_hwclk(1, time); + if (mach_hwclk) + return mach_hwclk(1, time); + return -EINVAL; } static inline unsigned int get_rtc_ss(void) diff --git a/arch/m68k/kernel/time.c b/arch/m68k/kernel/time.c index 7db41594d7b..54d980795fc 100644 --- a/arch/m68k/kernel/time.c +++ b/arch/m68k/kernel/time.c @@ -18,6 +18,7 @@ #include <linux/string.h> #include <linux/mm.h> #include <linux/rtc.h> +#include <linux/platform_device.h> #include <asm/machdep.h> #include <asm/io.h> @@ -159,3 +160,20 @@ int do_settimeofday(struct timespec *tv) } EXPORT_SYMBOL(do_settimeofday); + + +static int __init rtc_init(void) +{ + struct platform_device *pdev; + + if (!mach_hwclk) + return -ENODEV; + + pdev = platform_device_register_simple("rtc-generic", -1, NULL, 0); + if (IS_ERR(pdev)) + return PTR_ERR(pdev); + + return 0; +} + +module_init(rtc_init); diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig index aacf11d3372..378b64944dc 100644 --- a/arch/parisc/Kconfig +++ b/arch/parisc/Kconfig @@ -10,7 +10,7 @@ config PARISC select HAVE_IDE select HAVE_OPROFILE select RTC_CLASS - select RTC_DRV_PARISC + select RTC_DRV_GENERIC select INIT_ALL_POSSIBLE help The PA-RISC microprocessor is designed by Hewlett-Packard and used diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c index e75cae6072c..86a99d02234 100644 --- a/arch/parisc/kernel/time.c +++ b/arch/parisc/kernel/time.c @@ -216,14 +216,14 @@ void __init start_cpu_itimer(void) per_cpu(cpu_data, cpu).it_value = next_tick; } -static struct platform_device rtc_parisc_dev = { - .name = "rtc-parisc", +static struct platform_device rtc_generic_dev = { + .name = "rtc-generic", .id = -1, }; static int __init rtc_init(void) { - if (platform_device_register(&rtc_parisc_dev) < 0) + if (platform_device_register(&rtc_generic_dev) < 0) printk(KERN_ERR "unable to register rtc device...\n"); /* not necessarily an error */ diff --git a/arch/powerpc/include/asm/ps3.h b/arch/powerpc/include/asm/ps3.h index 67f1812698d..cdb6fd814de 100644 --- a/arch/powerpc/include/asm/ps3.h +++ b/arch/powerpc/include/asm/ps3.h @@ -50,6 +50,9 @@ enum ps3_param_av_multi_out { enum ps3_param_av_multi_out ps3_os_area_get_av_multi_out(void); +extern u64 ps3_os_area_get_rtc_diff(void); +extern void ps3_os_area_set_rtc_diff(u64 rtc_diff); + /* dma routines */ enum ps3_dma_page_size { diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c index c9564031a2a..926ea864e34 100644 --- a/arch/powerpc/kernel/time.c +++ b/arch/powerpc/kernel/time.c @@ -1127,3 +1127,19 @@ void div128_by_32(u64 dividend_high, u64 dividend_low, dr->result_low = ((u64)y << 32) + z; } + +static int __init rtc_init(void) +{ + struct platform_device *pdev; + + if (!ppc_md.get_rtc_time) + return -ENODEV; + + pdev = platform_device_register_simple("rtc-generic", -1, NULL, 0); + if (IS_ERR(pdev)) + return PTR_ERR(pdev); + + return 0; +} + +module_init(rtc_init); diff --git a/arch/powerpc/platforms/ps3/os-area.c b/arch/powerpc/platforms/ps3/os-area.c index e1c83c23b43..86e392b1b04 100644 --- a/arch/powerpc/platforms/ps3/os-area.c +++ b/arch/powerpc/platforms/ps3/os-area.c @@ -808,6 +808,7 @@ u64 ps3_os_area_get_rtc_diff(void) { return saved_params.rtc_diff; } +EXPORT_SYMBOL(ps3_os_area_get_rtc_diff); /** * ps3_os_area_set_rtc_diff - Set the rtc diff value. @@ -823,6 +824,7 @@ void ps3_os_area_set_rtc_diff(u64 rtc_diff) os_area_queue_work(); } } +EXPORT_SYMBOL(ps3_os_area_set_rtc_diff); /** * ps3_os_area_get_av_multi_out - Returns the default video mode. diff --git a/arch/powerpc/platforms/ps3/platform.h b/arch/powerpc/platforms/ps3/platform.h index 235c13ebacd..136aa0637d9 100644 --- a/arch/powerpc/platforms/ps3/platform.h +++ b/arch/powerpc/platforms/ps3/platform.h @@ -64,8 +64,6 @@ int ps3_set_rtc_time(struct rtc_time *time); void __init ps3_os_area_save_params(void); void __init ps3_os_area_init(void); -u64 ps3_os_area_get_rtc_diff(void); -void ps3_os_area_set_rtc_diff(u64 rtc_diff); /* spu */ diff --git a/arch/powerpc/platforms/ps3/setup.c b/arch/powerpc/platforms/ps3/setup.c index 3331ccbb8d3..66181821322 100644 --- a/arch/powerpc/platforms/ps3/setup.c +++ b/arch/powerpc/platforms/ps3/setup.c @@ -270,8 +270,6 @@ define_machine(ps3) { .init_IRQ = ps3_init_IRQ, .panic = ps3_panic, .get_boot_time = ps3_get_boot_time, - .set_rtc_time = ps3_set_rtc_time, - .get_rtc_time = ps3_get_rtc_time, .set_dabr = ps3_set_dabr, .calibrate_decr = ps3_calibrate_decr, .progress = ps3_progress, diff --git a/arch/powerpc/platforms/ps3/time.c b/arch/powerpc/platforms/ps3/time.c index d0daf7d6d3b..b178a1e66c9 100644 --- a/arch/powerpc/platforms/ps3/time.c +++ b/arch/powerpc/platforms/ps3/time.c @@ -19,6 +19,7 @@ */ #include <linux/kernel.h> +#include <linux/platform_device.h> #include <asm/rtc.h> #include <asm/lv1call.h> @@ -74,23 +75,20 @@ static u64 read_rtc(void) return rtc_val; } -int ps3_set_rtc_time(struct rtc_time *tm) +unsigned long __init ps3_get_boot_time(void) { - u64 now = mktime(tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday, - tm->tm_hour, tm->tm_min, tm->tm_sec); - - ps3_os_area_set_rtc_diff(now - read_rtc()); - return 0; + return read_rtc() + ps3_os_area_get_rtc_diff(); } -void ps3_get_rtc_time(struct rtc_time *tm) +static int __init ps3_rtc_init(void) { - to_tm(read_rtc() + ps3_os_area_get_rtc_diff(), tm); - tm->tm_year -= 1900; - tm->tm_mon -= 1; -} + struct platform_device *pdev; -unsigned long __init ps3_get_boot_time(void) -{ - return read_rtc() + ps3_os_area_get_rtc_diff(); + pdev = platform_device_register_simple("rtc-ps3", -1, NULL, 0); + if (IS_ERR(pdev)) + return PTR_ERR(pdev); + + return 0; } + +module_init(ps3_rtc_init); diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig index 56002f7d26b..ffe34a12f44 100644 --- a/drivers/rtc/Kconfig +++ b/drivers/rtc/Kconfig @@ -688,22 +688,16 @@ config RTC_DRV_RS5C313 help If you say yes here you get support for the Ricoh RS5C313 RTC chips. -config RTC_DRV_PARISC - tristate "PA-RISC firmware RTC support" - depends on PARISC - help - Say Y or M here to enable RTC support on PA-RISC systems using - firmware calls. If you do not know what you are doing, you should +config RTC_DRV_GENERIC + tristate "Generic RTC support" + # Please consider writing a new RTC driver instead of using the generic + # RTC abstraction + depends on PARISC || M68K || PPC + help + Say Y or M here to enable RTC support on systems using the generic + RTC abstraction. If you do not know what you are doing, you should just say Y. -config RTC_DRV_PPC - tristate "PowerPC machine dependent RTC support" - depends on PPC - help - The PowerPC kernel has machine-specific functions for accessing - the RTC. This exposes that functionality through the generic RTC - class. - config RTC_DRV_PXA tristate "PXA27x/PXA3xx" depends on ARCH_PXA @@ -747,4 +741,13 @@ config RTC_DRV_MV This driver can also be built as a module. If so, the module will be called rtc-mv. +config RTC_DRV_PS3 + tristate "PS3 RTC" + depends on PPC_PS3 + help + If you say yes here you will get support for the RTC on PS3. + + This driver can also be built as a module. If so, the module + will be called rtc-ps3. + endif # RTC_CLASS diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile index e7b09986d26..6c0639a14f0 100644 --- a/drivers/rtc/Makefile +++ b/drivers/rtc/Makefile @@ -56,8 +56,7 @@ obj-$(CONFIG_RTC_DRV_PCF8563) += rtc-pcf8563.o obj-$(CONFIG_RTC_DRV_PCF8583) += rtc-pcf8583.o obj-$(CONFIG_RTC_DRV_PL030) += rtc-pl030.o obj-$(CONFIG_RTC_DRV_PL031) += rtc-pl031.o -obj-$(CONFIG_RTC_DRV_PARISC) += rtc-parisc.o -obj-$(CONFIG_RTC_DRV_PPC) += rtc-ppc.o +obj-$(CONFIG_RTC_DRV_GENERIC) += rtc-generic.o obj-$(CONFIG_RTC_DRV_PXA) += rtc-pxa.o obj-$(CONFIG_RTC_DRV_R9701) += rtc-r9701.o obj-$(CONFIG_RTC_DRV_RS5C313) += rtc-rs5c313.o @@ -77,3 +76,4 @@ obj-$(CONFIG_RTC_DRV_VR41XX) += rtc-vr41xx.o obj-$(CONFIG_RTC_DRV_WM8350) += rtc-wm8350.o obj-$(CONFIG_RTC_DRV_X1205) += rtc-x1205.o obj-$(CONFIG_RTC_DRV_PCF50633) += rtc-pcf50633.o +obj-$(CONFIG_RTC_DRV_PS3) += rtc-ps3.o diff --git a/drivers/rtc/rtc-generic.c b/drivers/rtc/rtc-generic.c new file mode 100644 index 00000000000..98322004ad2 --- /dev/null +++ b/drivers/rtc/rtc-generic.c @@ -0,0 +1,84 @@ +/* rtc-generic: RTC driver using the generic RTC abstraction + * + * Copyright (C) 2008 Kyle McMartin <kyle@mcmartin.ca> + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/time.h> +#include <linux/platform_device.h> +#include <linux/rtc.h> + +#include <asm/rtc.h> + +static int generic_get_time(struct device *dev, struct rtc_time *tm) +{ + unsigned int ret = get_rtc_time(tm); + + if (ret & RTC_BATT_BAD) + return -EOPNOTSUPP; + + return rtc_valid_tm(tm); +} + +static int generic_set_time(struct device *dev, struct rtc_time *tm) +{ + if (set_rtc_time(tm) < 0) + return -EOPNOTSUPP; + + return 0; +} + +static const struct rtc_class_ops generic_rtc_ops = { + .read_time = generic_get_time, + .set_time = generic_set_time, +}; + +static int __init generic_rtc_probe(struct platform_device *dev) +{ + struct rtc_device *rtc; + + rtc = rtc_device_register("rtc-generic", &dev->dev, &generic_rtc_ops, + THIS_MODULE); + if (IS_ERR(rtc)) + return PTR_ERR(rtc); + + platform_set_drvdata(dev, rtc); + + return 0; +} + +static int __exit generic_rtc_remove(struct platform_device *dev) +{ + struct rtc_device *rtc = platform_get_drvdata(dev); + + rtc_device_unregister(rtc); + + return 0; +} + +static struct platform_driver generic_rtc_driver = { + .driver = { + .name = "rtc-generic", + .owner = THIS_MODULE, + }, + .remove = __exit_p(generic_rtc_remove), +}; + +static int __init generic_rtc_init(void) +{ + return platform_driver_probe(&generic_rtc_driver, generic_rtc_probe); +} + +static void __exit generic_rtc_fini(void) +{ + platform_driver_unregister(&generic_rtc_driver); +} + +module_init(generic_rtc_init); +module_exit(generic_rtc_fini); + +MODULE_AUTHOR("Kyle McMartin <kyle@mcmartin.ca>"); +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("Generic RTC driver"); +MODULE_ALIAS("platform:rtc-generic"); diff --git a/drivers/rtc/rtc-parisc.c b/drivers/rtc/rtc-parisc.c deleted file mode 100644 index b966f56da97..00000000000 --- a/drivers/rtc/rtc-parisc.c +++ /dev/null @@ -1,86 +0,0 @@ -/* rtc-parisc: RTC for HP PA-RISC firmware - * - * Copyright (C) 2008 Kyle McMartin <kyle@mcmartin.ca> - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/time.h> -#include <linux/platform_device.h> -#include <linux/rtc.h> - -#include <asm/rtc.h> - -static int parisc_get_time(struct device *dev, struct rtc_time *tm) -{ - unsigned long ret; - - ret = get_rtc_time(tm); - - if (ret & RTC_BATT_BAD) - return -EOPNOTSUPP; - - return rtc_valid_tm(tm); -} - -static int parisc_set_time(struct device *dev, struct rtc_time *tm) -{ - if (set_rtc_time(tm) < 0) - return -EOPNOTSUPP; - - return 0; -} - -static const struct rtc_class_ops parisc_rtc_ops = { - .read_time = parisc_get_time, - .set_time = parisc_set_time, -}; - -static int __init parisc_rtc_probe(struct platform_device *dev) -{ - struct rtc_device *rtc; - - rtc = rtc_device_register("rtc-parisc", &dev->dev, &parisc_rtc_ops, - THIS_MODULE); - if (IS_ERR(rtc)) - return PTR_ERR(rtc); - - platform_set_drvdata(dev, rtc); - - return 0; -} - -static int __exit parisc_rtc_remove(struct platform_device *dev) -{ - struct rtc_device *rtc = platform_get_drvdata(dev); - - rtc_device_unregister(rtc); - - return 0; -} - -static struct platform_driver parisc_rtc_driver = { - .driver = { - .name = "rtc-parisc", - .owner = THIS_MODULE, - }, - .probe = parisc_rtc_probe, - .remove = __devexit_p(parisc_rtc_remove), -}; - -static int __init parisc_rtc_init(void) -{ - return platform_driver_probe(&parisc_rtc_driver, parisc_rtc_probe); -} - -static void __exit parisc_rtc_fini(void) -{ - platform_driver_unregister(&parisc_rtc_driver); -} - -module_init(parisc_rtc_init); -module_exit(parisc_rtc_fini); - -MODULE_AUTHOR("Kyle McMartin <kyle@mcmartin.ca>"); -MODULE_LICENSE("GPL"); -MODULE_DESCRIPTION("HP PA-RISC RTC driver"); diff --git a/drivers/rtc/rtc-ppc.c b/drivers/rtc/rtc-ppc.c deleted file mode 100644 index c8e97e25ef7..00000000000 --- a/drivers/rtc/rtc-ppc.c +++ /dev/null @@ -1,69 +0,0 @@ -/* - * RTC driver for ppc_md RTC functions - * - * © 2007 Red Hat, Inc. - * - * Author: David Woodhouse <dwmw2@infradead.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - - -#include <linux/module.h> -#include <linux/err.h> -#include <linux/rtc.h> -#include <linux/platform_device.h> -#include <asm/machdep.h> - -static int ppc_rtc_read_time(struct device *dev, struct rtc_time *tm) -{ - ppc_md.get_rtc_time(tm); - return 0; -} - -static int ppc_rtc_set_time(struct device *dev, struct rtc_time *tm) -{ - return ppc_md.set_rtc_time(tm); -} - -static const struct rtc_class_ops ppc_rtc_ops = { - .set_time = ppc_rtc_set_time, - .read_time = ppc_rtc_read_time, -}; - -static struct rtc_device *rtc; -static struct platform_device *ppc_rtc_pdev; - -static int __init ppc_rtc_init(void) -{ - if (!ppc_md.get_rtc_time || !ppc_md.set_rtc_time) - return -ENODEV; - - ppc_rtc_pdev = platform_device_register_simple("ppc-rtc", 0, NULL, 0); - if (IS_ERR(ppc_rtc_pdev)) - return PTR_ERR(ppc_rtc_pdev); - - rtc = rtc_device_register("ppc_md", &ppc_rtc_pdev->dev, - &ppc_rtc_ops, THIS_MODULE); - if (IS_ERR(rtc)) { - platform_device_unregister(ppc_rtc_pdev); - return PTR_ERR(rtc); - } - - return 0; -} - -static void __exit ppc_rtc_exit(void) -{ - rtc_device_unregister(rtc); - platform_device_unregister(ppc_rtc_pdev); -} - -module_init(ppc_rtc_init); -module_exit(ppc_rtc_exit); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>"); -MODULE_DESCRIPTION("Generic RTC class driver for PowerPC"); diff --git a/drivers/rtc/rtc-ps3.c b/drivers/rtc/rtc-ps3.c new file mode 100644 index 00000000000..968133ce1ee --- /dev/null +++ b/drivers/rtc/rtc-ps3.c @@ -0,0 +1,104 @@ +/* + * PS3 RTC Driver + * + * Copyright 2009 Sony Corporation + * + * 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; version 2 of the License. + * + * 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, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/rtc.h> + +#include <asm/lv1call.h> +#include <asm/ps3.h> + + +static u64 read_rtc(void) +{ + int result; + u64 rtc_val; + u64 tb_val; + + result = lv1_get_rtc(&rtc_val, &tb_val); + BUG_ON(result); + + return rtc_val; +} + +static int ps3_get_time(struct device *dev, struct rtc_time *tm) +{ + rtc_time_to_tm(read_rtc() + ps3_os_area_get_rtc_diff(), tm); + return rtc_valid_tm(tm); +} + +static int ps3_set_time(struct device *dev, struct rtc_time *tm) +{ + unsigned long now; + + rtc_tm_to_time(tm, &now); + ps3_os_area_set_rtc_diff(now - read_rtc()); + return 0; +} + +static const struct rtc_class_ops ps3_rtc_ops = { + .read_time = ps3_get_time, + .set_time = ps3_set_time, +}; + +static int __init ps3_rtc_probe(struct platform_device *dev) +{ + struct rtc_device *rtc; + + rtc = rtc_device_register("rtc-ps3", &dev->dev, &ps3_rtc_ops, + THIS_MODULE); + if (IS_ERR(rtc)) + return PTR_ERR(rtc); + + platform_set_drvdata(dev, rtc); + return 0; +} + +static int __exit ps3_rtc_remove(struct platform_device *dev) +{ + rtc_device_unregister(platform_get_drvdata(dev)); + return 0; +} + +static struct platform_driver ps3_rtc_driver = { + .driver = { + .name = "rtc-ps3", + .owner = THIS_MODULE, + }, + .remove = __exit_p(ps3_rtc_remove), +}; + +static int __init ps3_rtc_init(void) +{ + return platform_driver_probe(&ps3_rtc_driver, ps3_rtc_probe); +} + +static void __exit ps3_rtc_fini(void) +{ + platform_driver_unregister(&ps3_rtc_driver); +} + +module_init(ps3_rtc_init); +module_exit(ps3_rtc_fini); + +MODULE_AUTHOR("Sony Corporation"); +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("ps3 RTC driver"); +MODULE_ALIAS("platform:rtc-ps3"); |