diff options
Diffstat (limited to 'packages/linux/ixp4xx-kernel/2.6.15/55-rtc-pcf8563.patch')
| -rw-r--r-- | packages/linux/ixp4xx-kernel/2.6.15/55-rtc-pcf8563.patch | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/packages/linux/ixp4xx-kernel/2.6.15/55-rtc-pcf8563.patch b/packages/linux/ixp4xx-kernel/2.6.15/55-rtc-pcf8563.patch new file mode 100644 index 0000000000..d154b6ac11 --- /dev/null +++ b/packages/linux/ixp4xx-kernel/2.6.15/55-rtc-pcf8563.patch @@ -0,0 +1,174 @@ + drivers/char/Kconfig | 8 ++ + drivers/char/Makefile | 1 + drivers/char/pcf8563-rtc.c | 135 +++++++++++++++++++++++++++++++++++++++++++++ + 3 files changed, 143 insertions(+), 1 deletion(-) + +--- linux-nas100d.orig/drivers/char/Kconfig 2005-11-16 22:29:03.000000000 +0100 ++++ linux-nas100d/drivers/char/Kconfig 2005-11-30 23:04:56.000000000 +0100 +@@ -783,6 +783,13 @@ config RTC_VR41XX + tristate "NEC VR4100 series Real Time Clock Support" + depends on CPU_VR41XX + ++config RTC_PCF8563 ++ tristate "PCF8563 I2C RTC Support" ++ depends on I2C && RTC_PCF8563_I2C ++ help ++ This driver enables the kernel to use the PCF8563 ++ I2C real time clock as the system clock. ++ + config COBALT_LCD + bool "Support for Cobalt LCD" + depends on MIPS_COBALT +@@ -1014,4 +1021,3 @@ config TELCLOCK + files for controlling the behavior of this hardware. + + endmenu +- +--- linux-nas100d.orig/drivers/char/Makefile 2005-11-16 22:29:03.000000000 +0100 ++++ linux-nas100d/drivers/char/Makefile 2005-11-30 23:01:35.000000000 +0100 +@@ -65,6 +65,7 @@ obj-$(CONFIG_SGI_IP27_RTC) += ip27-rtc.o + obj-$(CONFIG_DS1302) += ds1302.o + obj-$(CONFIG_S3C2410_RTC) += s3c2410-rtc.o + obj-$(CONFIG_RTC_VR41XX) += vr41xx_rtc.o ++obj-$(CONFIG_RTC_PCF8563) += pcf8563-rtc.o + ifeq ($(CONFIG_GENERIC_NVRAM),y) + obj-$(CONFIG_NVRAM) += generic_nvram.o + else +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-nas100d/drivers/char/pcf8563-rtc.c 2005-11-30 23:06:53.000000000 +0100 +@@ -0,0 +1,135 @@ ++/* ++ * drivers/char/pcf8563-rtc.c ++ * ++ * PCF8563 RTC platform driver ++ * ++ * Copyright (C) 2005 Tower Technologies ++ * ++ * Author: Alessandro Zummo <a.zummo@towertech.it> ++ * Maintainers: http://www.nslu2-linux.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/device.h> ++#include <linux/time.h> ++#include <linux/rtc.h> ++#include <linux/init.h> ++#include <linux/platform_device.h> ++ ++#include <linux/i2c.h> ++#include <linux/pcf8563.h> ++ ++#include <asm/rtc.h> ++ ++#define DRV_VERSION "0.9" ++ ++extern int (*set_rtc)(void); ++ ++static int pcf8563_set_rtc(void) ++{ ++ int err; ++ ++ struct rtc_time new_tm, old_tm; ++ unsigned long cur_secs = xtime.tv_sec; ++ ++ if ((err = pcf8563_do_command(PCF8563_CMD_GETDATETIME, &old_tm) == 0)) ++ return err; ++ ++ /* FIXME xtime.tv_nsec = old_tm.tm_sec * 10000000; */ ++ new_tm.tm_sec = cur_secs % 60; ++ cur_secs /= 60; ++ new_tm.tm_min = cur_secs % 60; ++ cur_secs /= 60; ++ new_tm.tm_hour = cur_secs % 24; ++ ++ /* ++ * avoid writing when we're going to change the day ++ * of the month. We will retry in the next minute. ++ * This basically means that if the RTC must not drift ++ * by more than 1 minute in 11 minutes. ++ */ ++ if ((old_tm.tm_hour == 23 && old_tm.tm_min == 59) || ++ (new_tm.tm_hour == 23 && new_tm.tm_min == 59)) ++ return 1; ++ ++ return pcf8563_do_command(PCF8563_CMD_SETTIME, &new_tm); ++} ++ ++static int pcf8563_rtc_read_time(struct rtc_time *tm) ++{ ++ return pcf8563_do_command(PCF8563_CMD_GETDATETIME, tm); ++} ++ ++static int pcf8563_rtc_set_time(struct rtc_time *tm) ++{ ++ return pcf8563_do_command(PCF8563_CMD_SETDATETIME, tm); ++} ++ ++static int pcf8563_rtc_proc(char *buf) ++{ ++ char *p = buf; ++ ++ p += sprintf(p, "24hr\t\t: yes\n"); ++ ++ return p - buf; ++} ++ ++static struct rtc_ops pcf8563_rtc_ops = { ++ .owner = THIS_MODULE, ++ .proc = pcf8563_rtc_proc, ++ .read_time = pcf8563_rtc_read_time, ++ .set_time = pcf8563_rtc_set_time, ++}; ++ ++static int pcf8563_rtc_probe(struct device *dev) ++{ ++ int ret; ++ ++ if ((ret = register_rtc(&pcf8563_rtc_ops)) != 0) ++ return ret; ++ ++ set_rtc = pcf8563_set_rtc; ++ ++ printk(KERN_INFO "pcf8563-rtc: real time clock\n"); ++ ++ return 0; ++} ++ ++static int pcf8563_rtc_remove(struct device *dev) ++{ ++ set_rtc = NULL; ++ ++ unregister_rtc(&pcf8563_rtc_ops); ++ ++ return 0; ++} ++ ++static struct device_driver pcf8563_rtc_driver = { ++ .name = "pcf8563-rtc", ++ .bus = &platform_bus_type, ++ .probe = pcf8563_rtc_probe, ++ .remove = pcf8563_rtc_remove, ++}; ++ ++static int __init pcf8563_rtc_init(void) ++{ ++ return driver_register(&pcf8563_rtc_driver); ++} ++ ++static void __exit pcf8563_rtc_exit(void) ++{ ++ driver_unregister(&pcf8563_rtc_driver); ++} ++ ++module_init(pcf8563_rtc_init); ++module_exit(pcf8563_rtc_exit); ++ ++MODULE_AUTHOR("Alessandro Zummo <a.zummo@towertech.it>"); ++MODULE_DESCRIPTION("Xicor PCF8563 RTC platform driver"); ++MODULE_LICENSE("GPL"); ++MODULE_VERSION(DRV_VERSION); |