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| author | Dario Binacchi <dariobin@libero.it> | 2021-06-02 22:38:00 +0200 |
|---|---|---|
| committer | Lokesh Vutla <lokeshvutla@ti.com> | 2021-06-09 22:23:44 +0530 |
| commit | 82a456a085facede0913a742660df9a1607d1543 (patch) | |
| tree | 358630dab2344ebfabf04c6abc5ccac788eeb356 | |
| parent | 6acee20e57c751b20321c95ed78aa452febf1f7e (diff) | |
| download | u-boot-82a456a085facede0913a742660df9a1607d1543.zip u-boot-82a456a085facede0913a742660df9a1607d1543.tar.gz u-boot-82a456a085facede0913a742660df9a1607d1543.tar.bz2 | |
rtc: davinci: replace 32bit access with 8bit access
Use 32-bit access only where it is needed. Most of the RTC registers
contain useful information in the 8 least significant bits, the others
are reserved.
Signed-off-by: Dario Binacchi <dariobin@libero.it>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20210602203805.11494-4-dariobin@libero.it
| -rw-r--r-- | drivers/rtc/davinci.c | 32 |
1 files changed, 16 insertions, 16 deletions
diff --git a/drivers/rtc/davinci.c b/drivers/rtc/davinci.c index 8f5f76c..99ae31e 100644 --- a/drivers/rtc/davinci.c +++ b/drivers/rtc/davinci.c @@ -22,7 +22,7 @@ int rtc_get(struct rtc_time *tmp) unsigned long sec, min, hour, mday, wday, mon_cent, year; unsigned long status; - status = readl(&rtc->status); + status = readb(&rtc->status); if ((status & RTC_STATE_RUN) != RTC_STATE_RUN) { printf("RTC doesn't run\n"); return -1; @@ -30,13 +30,13 @@ int rtc_get(struct rtc_time *tmp) if ((status & RTC_STATE_BUSY) == RTC_STATE_BUSY) udelay(20); - sec = readl(&rtc->second); - min = readl(&rtc->minutes); - hour = readl(&rtc->hours); - mday = readl(&rtc->day); - wday = readl(&rtc->dotw); - mon_cent = readl(&rtc->month); - year = readl(&rtc->year); + sec = readb(&rtc->second); + min = readb(&rtc->minutes); + hour = readb(&rtc->hours); + mday = readb(&rtc->day); + wday = readb(&rtc->dotw); + mon_cent = readb(&rtc->month); + year = readb(&rtc->year); debug("Get RTC year: %02lx mon/cent: %02lx mday: %02lx wday: %02lx " "hr: %02lx min: %02lx sec: %02lx\n", @@ -67,14 +67,14 @@ int rtc_set(struct rtc_time *tmp) debug("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); - writel(bin2bcd(tmp->tm_year % 100), &rtc->year); - writel(bin2bcd(tmp->tm_mon), &rtc->month); + writeb(bin2bcd(tmp->tm_year % 100), &rtc->year); + writeb(bin2bcd(tmp->tm_mon), &rtc->month); - writel(bin2bcd(tmp->tm_wday), &rtc->dotw); - writel(bin2bcd(tmp->tm_mday), &rtc->day); - writel(bin2bcd(tmp->tm_hour), &rtc->hours); - writel(bin2bcd(tmp->tm_min), &rtc->minutes); - writel(bin2bcd(tmp->tm_sec), &rtc->second); + writeb(bin2bcd(tmp->tm_wday), &rtc->dotw); + writeb(bin2bcd(tmp->tm_mday), &rtc->day); + writeb(bin2bcd(tmp->tm_hour), &rtc->hours); + writeb(bin2bcd(tmp->tm_min), &rtc->minutes); + writeb(bin2bcd(tmp->tm_sec), &rtc->second); return 0; } @@ -83,5 +83,5 @@ void rtc_reset(void) struct davinci_rtc *rtc = (struct davinci_rtc *)RTC_BASE; /* run RTC counter */ - writel(0x01, &rtc->ctrl); + writeb(0x01, &rtc->ctrl); } |