Commit 0b5f037a authored by Geert Uytterhoeven's avatar Geert Uytterhoeven Committed by Kyle McMartin
Browse files

powerpc/ps3: Add rtc-ps3



Create a real RTC driver for PS3, and unhook the deprecated
ppc_md.[gs]et_rtc_time.
Signed-off-by: default avatarGeert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Acked-by: default avatarAlessandro Zummo <a.zummo@towertech.it>
Acked-by: default avatarGeoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: default avatarKyle McMartin <kyle@mcmartin.ca>
parent bcd68a70
......@@ -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 {
......
......@@ -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.
......
......@@ -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 */
......
......@@ -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,
......
......@@ -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);
......@@ -741,4 +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
......@@ -76,3 +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
/*
* 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");
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