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authorkevin.morfitt@fearnside-systems.co.uk <kevin.morfitt@fearnside-systems.co.uk>2009-10-10 13:33:11 +0900
committerTom Rix <Tom.Rix@windriver.com>2009-10-13 21:13:56 -0500
commiteb0ae7f549b7142826a8bcdd2dc945fac9c36349 (patch)
tree72b7759e4457d593f217cdd4ad0f7eecd622eaf3 /drivers/rtc/s3c24x0_rtc.c
parent8250d0bae84229abea397f6b474b3556b0f04e80 (diff)
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Clean-up of s3c24x0 drivers excluding nand driver
This patch re-formats the arm920t s3c24x0 driver files, excluding the nand driver, in preparation for changes to add support for the Embest SBC2440-II Board. The changes are as follows: - re-indent the code using Lindent - make sure register layouts are defined using a C struct - replace the upper-case typedef'ed C struct names with lower case non-typedef'ed ones - make sure registers are accessed using the proper accessor functions - run checkpatch.pl and fix any error reports It assumes the following patch has been applied first: - [U-Boot][PATCH-ARM] CONFIG_SYS_HZ fix for ARM902T S3C24X0 Boards, 05/09/2009 - patches 1/4 and 2/4 of this series Tested on an Embest SBC2440-II Board with local u-boot patches as I don't have any s3c2400 or s3c2410 boards but need this patch applying before I can submit patches for the SBC2440-II Board. Also, temporarily modified sbc2410x, smdk2400, smdk2410 and trab configs to use the mtd nand driver (which isn't used by any board at the moment), ran MAKEALL for all ARM9 targets and no new warnings or errors were found. Signed-off-by: Kevin Morfitt <kevin.morfitt@fearnside-systems.co.uk> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Diffstat (limited to 'drivers/rtc/s3c24x0_rtc.c')
-rw-r--r--drivers/rtc/s3c24x0_rtc.c130
1 files changed, 66 insertions, 64 deletions
diff --git a/drivers/rtc/s3c24x0_rtc.c b/drivers/rtc/s3c24x0_rtc.c
index e10db9a..1ce34e3 100644
--- a/drivers/rtc/s3c24x0_rtc.c
+++ b/drivers/rtc/s3c24x0_rtc.c
@@ -37,6 +37,7 @@
#endif
#include <rtc.h>
+#include <asm/io.h>
/*#define DEBUG*/
@@ -48,112 +49,113 @@ typedef enum {
static inline void SetRTC_Access(RTC_ACCESS a)
{
- S3C24X0_RTC * const rtc = S3C24X0_GetBase_RTC();
+ struct s3c24x0_rtc *rtc = s3c24x0_get_base_rtc();
+
switch (a) {
- case RTC_ENABLE:
- rtc->RTCCON |= 0x01; break;
+ case RTC_ENABLE:
+ writeb(readb(&rtc->RTCCON) | 0x01, &rtc->RTCCON);
+ break;
- case RTC_DISABLE:
- rtc->RTCCON &= ~0x01; break;
+ case RTC_DISABLE:
+ writeb(readb(&rtc->RTCCON) & ~0x01, &rtc->RTCCON);
+ break;
}
}
/* ------------------------------------------------------------------------- */
-int rtc_get (struct rtc_time *tmp)
+int rtc_get(struct rtc_time *tmp)
{
- S3C24X0_RTC * const rtc = S3C24X0_GetBase_RTC();
+ struct s3c24x0_rtc *rtc = s3c24x0_get_base_rtc();
uchar sec, min, hour, mday, wday, mon, year;
- uchar a_sec,a_min, a_hour, a_date, a_mon, a_year, a_armed;
+ uchar a_sec, a_min, a_hour, a_date, a_mon, a_year, a_armed;
/* enable access to RTC registers */
SetRTC_Access(RTC_ENABLE);
/* read RTC registers */
do {
- sec = rtc->BCDSEC;
- min = rtc->BCDMIN;
- hour = rtc->BCDHOUR;
- mday = rtc->BCDDATE;
- wday = rtc->BCDDAY;
- mon = rtc->BCDMON;
- year = rtc->BCDYEAR;
- } while (sec != rtc->BCDSEC);
+ sec = readb(&rtc->BCDSEC);
+ min = readb(&rtc->BCDMIN);
+ hour = readb(&rtc->BCDHOUR);
+ mday = readb(&rtc->BCDDATE);
+ wday = readb(&rtc->BCDDAY);
+ mon = readb(&rtc->BCDMON);
+ year = readb(&rtc->BCDYEAR);
+ } while (sec != readb(&rtc->BCDSEC));
/* read ALARM registers */
- a_sec = rtc->ALMSEC;
- a_min = rtc->ALMMIN;
- a_hour = rtc->ALMHOUR;
- a_date = rtc->ALMDATE;
- a_mon = rtc->ALMMON;
- a_year = rtc->ALMYEAR;
- a_armed = rtc->RTCALM;
+ a_sec = readb(&rtc->ALMSEC);
+ a_min = readb(&rtc->ALMMIN);
+ a_hour = readb(&rtc->ALMHOUR);
+ a_date = readb(&rtc->ALMDATE);
+ a_mon = readb(&rtc->ALMMON);
+ a_year = readb(&rtc->ALMYEAR);
+ a_armed = readb(&rtc->RTCALM);
/* disable access to RTC registers */
SetRTC_Access(RTC_DISABLE);
#ifdef RTC_DEBUG
- printf ( "Get RTC year: %02x mon/cent: %02x mday: %02x wday: %02x "
- "hr: %02x min: %02x sec: %02x\n",
- year, mon, mday, wday,
- hour, min, sec);
- printf ( "Alarms: %02x: year: %02x month: %02x date: %02x hour: %02x min: %02x sec: %02x\n",
- a_armed,
- a_year, a_mon, a_date,
- a_hour, a_min, a_sec);
+ printf("Get RTC year: %02x mon/cent: %02x mday: %02x wday: %02x "
+ "hr: %02x min: %02x sec: %02x\n",
+ year, mon, mday, wday, hour, min, sec);
+ printf("Alarms: %02x: year: %02x month: %02x date: %02x hour: "
+ "%02x min: %02x sec: %02x\n",
+ a_armed, a_year, a_mon, a_date, a_hour, a_min, a_sec);
#endif
- tmp->tm_sec = bcd2bin(sec & 0x7F);
- tmp->tm_min = bcd2bin(min & 0x7F);
+ tmp->tm_sec = bcd2bin(sec & 0x7F);
+ tmp->tm_min = bcd2bin(min & 0x7F);
tmp->tm_hour = bcd2bin(hour & 0x3F);
tmp->tm_mday = bcd2bin(mday & 0x3F);
tmp->tm_mon = bcd2bin(mon & 0x1F);
tmp->tm_year = bcd2bin(year);
tmp->tm_wday = bcd2bin(wday & 0x07);
- if(tmp->tm_year<70)
- tmp->tm_year+=2000;
+ if (tmp->tm_year < 70)
+ tmp->tm_year += 2000;
else
- tmp->tm_year+=1900;
- tmp->tm_yday = 0;
- tmp->tm_isdst= 0;
+ tmp->tm_year += 1900;
+ tmp->tm_yday = 0;
+ tmp->tm_isdst = 0;
#ifdef RTC_DEBUG
- printf ( "Get DATE: %4d-%02d-%02d (wday=%d) TIME: %2d:%02d:%02d\n",
- tmp->tm_year, tmp->tm_mon, tmp->tm_mday, tmp->tm_wday,
- tmp->tm_hour, tmp->tm_min, tmp->tm_sec);
+ printf("Get DATE: %4d-%02d-%02d (wday=%d) TIME: %2d:%02d:%02d\n",
+ tmp->tm_year, tmp->tm_mon, tmp->tm_mday, tmp->tm_wday,
+ tmp->tm_hour, tmp->tm_min, tmp->tm_sec);
#endif
return 0;
}
-int rtc_set (struct rtc_time *tmp)
+int rtc_set(struct rtc_time *tmp)
{
- S3C24X0_RTC * const rtc = S3C24X0_GetBase_RTC();
+ struct s3c24x0_rtc *rtc = s3c24x0_get_base_rtc();
uchar sec, min, hour, mday, wday, mon, year;
#ifdef RTC_DEBUG
- printf ( "Set DATE: %4d-%02d-%02d (wday=%d) TIME: %2d:%02d:%02d\n",
- tmp->tm_year, tmp->tm_mon, tmp->tm_mday, tmp->tm_wday,
- tmp->tm_hour, tmp->tm_min, tmp->tm_sec);
+ printf("Set DATE: %4d-%02d-%02d (wday=%d) TIME: %2d:%02d:%02d\n",
+ tmp->tm_year, tmp->tm_mon, tmp->tm_mday, tmp->tm_wday,
+ tmp->tm_hour, tmp->tm_min, tmp->tm_sec);
#endif
- year = bin2bcd(tmp->tm_year % 100);
- mon = bin2bcd(tmp->tm_mon);
- wday = bin2bcd(tmp->tm_wday);
- mday = bin2bcd(tmp->tm_mday);
- hour = bin2bcd(tmp->tm_hour);
- min = bin2bcd(tmp->tm_min);
- sec = bin2bcd(tmp->tm_sec);
+ year = bin2bcd(tmp->tm_year % 100);
+ mon = bin2bcd(tmp->tm_mon);
+ wday = bin2bcd(tmp->tm_wday);
+ mday = bin2bcd(tmp->tm_mday);
+ hour = bin2bcd(tmp->tm_hour);
+ min = bin2bcd(tmp->tm_min);
+ sec = bin2bcd(tmp->tm_sec);
/* enable access to RTC registers */
SetRTC_Access(RTC_ENABLE);
/* write RTC registers */
- rtc->BCDSEC = sec;
- rtc->BCDMIN = min;
- rtc->BCDHOUR = hour;
- rtc->BCDDATE = mday;
- rtc->BCDDAY = wday;
- rtc->BCDMON = mon;
- rtc->BCDYEAR = year;
+ writeb(sec, &rtc->BCDSEC);
+ writeb(min, &rtc->BCDMIN);
+ writeb(hour, &rtc->BCDHOUR);
+ writeb(mday, &rtc->BCDDATE);
+ writeb(wday, &rtc->BCDDAY);
+ writeb(mon, &rtc->BCDMON);
+ writeb(year, &rtc->BCDYEAR);
/* disable access to RTC registers */
SetRTC_Access(RTC_DISABLE);
@@ -161,12 +163,12 @@ int rtc_set (struct rtc_time *tmp)
return 0;
}
-void rtc_reset (void)
+void rtc_reset(void)
{
- S3C24X0_RTC * const rtc = S3C24X0_GetBase_RTC();
+ struct s3c24x0_rtc *rtc = s3c24x0_get_base_rtc();
- rtc->RTCCON = (rtc->RTCCON & ~0x06) | 0x08;
- rtc->RTCCON &= ~(0x08|0x01);
+ writeb((readb(&rtc->RTCCON) & ~0x06) | 0x08, &rtc->RTCCON);
+ writeb(readb(&rtc->RTCCON) & ~(0x08 | 0x01), &rtc->RTCCON);
}
#endif