Subject: [v8 1/8] rtc: pcf8563: Add driver model support
Add support of driver model of pcf8563
Signed-off-by: Biwen Li biwen.li@nxp.com
Changes in v8:
- none
Changes in v7:
- none
Changes in v6:
- none
Changes in v5:
- none
Changes in v4:
- update commit messages
- update copyright
Changes in v3:
- update commit messages
Changes in v2:
- none
drivers/rtc/pcf8563.c | 107 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 107 insertions(+)
diff --git a/drivers/rtc/pcf8563.c b/drivers/rtc/pcf8563.c index a839d6cc98..44204e133e 100644 --- a/drivers/rtc/pcf8563.c +++ b/drivers/rtc/pcf8563.c @@ -12,9 +12,11 @@
#include <common.h> #include <command.h> +#include <dm.h> #include <rtc.h> #include <i2c.h>
+#if !CONFIG_IS_ENABLED(DM_RTC) static uchar rtc_read (uchar reg); static void rtc_write (uchar reg, uchar val);
@@ -115,3 +117,108 @@ static void rtc_write (uchar reg, uchar val) { i2c_reg_write (CONFIG_SYS_I2C_RTC_ADDR, reg, val); } +#else +static int pcf8563_rtc_get(struct udevice *dev, struct rtc_time *tmp) {
- int rel = 0;
- uchar sec, min, hour, mday, wday, mon_cent, year;
- sec = dm_i2c_reg_read(dev, 0x02);
- min = dm_i2c_reg_read(dev, 0x03);
- hour = dm_i2c_reg_read(dev, 0x04);
- mday = dm_i2c_reg_read(dev, 0x05);
- wday = dm_i2c_reg_read(dev, 0x06);
- mon_cent = dm_i2c_reg_read(dev, 0x07);
- year = dm_i2c_reg_read(dev, 0x08);
- debug ("Get RTC year: %02x mon/cent: %02x mday: %02x wday: %02x "
"hr: %02x min: %02x sec: %02x\n",year, mon_cent, mday, wday,hour, min, sec);- debug ("Alarms: wday: %02x day: %02x hour: %02x min: %02x\n",
dm_i2c_reg_read(dev, 0x0C),dm_i2c_reg_read(dev, 0x0B),dm_i2c_reg_read(dev, 0x0A),dm_i2c_reg_read(dev, 0x09));- if (sec & 0x80) {
puts ("### Warning: RTC Low Voltage - date/time not reliable\n");rel = -1;- }
- 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_cent & 0x1F);
- tmp->tm_year = bcd2bin (year) + ((mon_cent & 0x80) ? 1900 : 2000);
- tmp->tm_wday = bcd2bin (wday & 0x07);
- tmp->tm_yday = 0;
- tmp->tm_isdst = 0;
- debug ("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);- return rel;
+}
+static int pcf8563_rtc_set(struct udevice *dev, const struct rtc_time +*tmp) {
- uchar century;
- 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);- dm_i2c_reg_write(dev, 0x08, bin2bcd(tmp->tm_year % 100));
- century = (tmp->tm_year >= 2000) ? 0 : 0x80;
- dm_i2c_reg_write(dev, 0x07, bin2bcd(tmp->tm_mon) | century);
- dm_i2c_reg_write(dev, 0x06, bin2bcd(tmp->tm_wday));
- dm_i2c_reg_write(dev, 0x05, bin2bcd(tmp->tm_mday));
- dm_i2c_reg_write(dev, 0x04, bin2bcd(tmp->tm_hour));
- dm_i2c_reg_write(dev, 0x03, bin2bcd(tmp->tm_min));
- dm_i2c_reg_write(dev, 0x02, bin2bcd(tmp->tm_sec));
- return 0;
+}
+static int pcf8563_rtc_reset(struct udevice *dev) {
- /* clear all control & status registers */
- dm_i2c_reg_write(dev, 0x00, 0x00);
- dm_i2c_reg_write(dev, 0x01, 0x00);
- dm_i2c_reg_write(dev, 0x0D, 0x00);
- /* clear Voltage Low bit */
- dm_i2c_reg_write(dev, 0x02, dm_i2c_reg_read (dev, 0x02) & 0x7F);
- /* reset all alarms */
- dm_i2c_reg_write(dev, 0x09, 0x00);
- dm_i2c_reg_write(dev, 0x0A, 0x00);
- dm_i2c_reg_write(dev, 0x0B, 0x00);
- dm_i2c_reg_write(dev, 0x0C, 0x00);
- return 0;
+}
+static const struct rtc_ops pcf8563_rtc_ops = {
- .get = pcf8563_rtc_get,
- .set = pcf8563_rtc_set,
- .reset = pcf8563_rtc_reset,
+};
+static const struct udevice_id pcf8563_rtc_ids[] = {
- { .compatible = "nxp,pcf8563" },
- { }
+};
+U_BOOT_DRIVER(rtc_pcf8563) = {
- .name = "rtc-pcf8563",
- .id = UCLASS_RTC,
- .of_match = pcf8563_rtc_ids,
- .ops = &pcf8563_rtc_ops,
+};
+#endif
2.17.1
Hi Priyanka, any commnets?