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[src/trunk]: src/sys/arch/arm/sunxi Add sun4i-a10 RTC support.
details: https://anonhg.NetBSD.org/src/rev/d082ea888dd9
branches: trunk
changeset: 827002:d082ea888dd9
user: jmcneill <jmcneill%NetBSD.org@localhost>
date: Sun Oct 08 14:03:46 2017 +0000
description:
Add sun4i-a10 RTC support.
diffstat:
sys/arch/arm/sunxi/sunxi_rtc.c | 199 +++++++++++++++++++---------------------
1 files changed, 96 insertions(+), 103 deletions(-)
diffs (truncated from 305 to 300 lines):
diff -r d499ec7ec150 -r d082ea888dd9 sys/arch/arm/sunxi/sunxi_rtc.c
--- a/sys/arch/arm/sunxi/sunxi_rtc.c Sun Oct 08 13:51:31 2017 +0000
+++ b/sys/arch/arm/sunxi/sunxi_rtc.c Sun Oct 08 14:03:46 2017 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: sunxi_rtc.c,v 1.2 2017/10/07 17:03:49 jmcneill Exp $ */
+/* $NetBSD: sunxi_rtc.c,v 1.3 2017/10/08 14:03:46 jmcneill Exp $ */
/*-
* Copyright (c) 2014-2017 Jared McNeill <jmcneill%invisible.ca@localhost>
@@ -27,7 +27,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: sunxi_rtc.c,v 1.2 2017/10/07 17:03:49 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: sunxi_rtc.c,v 1.3 2017/10/08 14:03:46 jmcneill Exp $");
#include <sys/param.h>
#include <sys/bus.h>
@@ -40,6 +40,18 @@
#include <dev/fdt/fdtvar.h>
+#define SUN4I_RTC_YY_MM_DD_REG 0x04
+#define SUN4I_RTC_LEAP __BIT(22)
+#define SUN4I_RTC_YEAR __BITS(21,16)
+#define SUN4I_RTC_MONTH __BITS(11,8)
+#define SUN4I_RTC_DAY __BITS(4,0)
+#define SUN4I_RTC_HH_MM_SS_REG 0x08
+#define SUN4I_RTC_WK_NO __BITS(31,29)
+#define SUN4I_RTC_HOUR __BITS(20,16)
+#define SUN4I_RTC_MINUTE __BITS(13,8)
+#define SUN4I_RTC_SECOND __BITS(5,0)
+#define SUN4I_RTC_BASE_YEAR 2010
+
#define SUN7I_RTC_YY_MM_DD_REG 0x04
#define SUN7I_RTC_LEAP __BIT(24)
#define SUN7I_RTC_YEAR __BITS(23,16)
@@ -50,6 +62,7 @@
#define SUN7I_RTC_HOUR __BITS(20,16)
#define SUN7I_RTC_MINUTE __BITS(13,8)
#define SUN7I_RTC_SECOND __BITS(5,0)
+#define SUN7I_RTC_BASE_YEAR 1970
#define SUN6I_RTC_YY_MM_DD_REG 0x10
#define SUN6I_RTC_LEAP __BIT(22)
@@ -61,17 +74,62 @@
#define SUN6I_RTC_HOUR __BITS(20,16)
#define SUN6I_RTC_MINUTE __BITS(13,8)
#define SUN6I_RTC_SECOND __BITS(5,0)
+#define SUN6I_RTC_BASE_YEAR 2000
-#define SUNXI_RTC_BASE_YEAR 2000
+struct sunxi_rtc_config {
+ bus_size_t yy_mm_dd_reg;
+ uint32_t leap, year, month, day;
+ bus_size_t hh_mm_ss_reg;
+ uint32_t wk_no, hour, minute, second;
+ u_int base_year;
+};
+
+static const struct sunxi_rtc_config sun4i_rtc_config = {
+ .yy_mm_dd_reg = SUN4I_RTC_YY_MM_DD_REG,
+ .leap = SUN4I_RTC_LEAP,
+ .year = SUN4I_RTC_YEAR,
+ .month = SUN4I_RTC_MONTH,
+ .day = SUN4I_RTC_DAY,
+ .hh_mm_ss_reg = SUN4I_RTC_HH_MM_SS_REG,
+ .wk_no = SUN4I_RTC_WK_NO,
+ .hour = SUN4I_RTC_HOUR,
+ .minute = SUN4I_RTC_MINUTE,
+ .second = SUN4I_RTC_SECOND,
+ .base_year = SUN4I_RTC_BASE_YEAR,
+};
-enum sunxi_rtc_type {
- RTC_SUN6I = 1,
- RTC_SUN7I,
+static const struct sunxi_rtc_config sun6i_rtc_config = {
+ .yy_mm_dd_reg = SUN6I_RTC_YY_MM_DD_REG,
+ .leap = SUN6I_RTC_LEAP,
+ .year = SUN6I_RTC_YEAR,
+ .month = SUN6I_RTC_MONTH,
+ .day = SUN6I_RTC_DAY,
+ .hh_mm_ss_reg = SUN6I_RTC_HH_MM_SS_REG,
+ .wk_no = SUN6I_RTC_WK_NO,
+ .hour = SUN6I_RTC_HOUR,
+ .minute = SUN6I_RTC_MINUTE,
+ .second = SUN6I_RTC_SECOND,
+ .base_year = SUN6I_RTC_BASE_YEAR,
+};
+
+static const struct sunxi_rtc_config sun7i_rtc_config = {
+ .yy_mm_dd_reg = SUN7I_RTC_YY_MM_DD_REG,
+ .leap = SUN7I_RTC_LEAP,
+ .year = SUN7I_RTC_YEAR,
+ .month = SUN7I_RTC_MONTH,
+ .day = SUN7I_RTC_DAY,
+ .hh_mm_ss_reg = SUN7I_RTC_HH_MM_SS_REG,
+ .wk_no = SUN7I_RTC_WK_NO,
+ .hour = SUN7I_RTC_HOUR,
+ .minute = SUN7I_RTC_MINUTE,
+ .second = SUN7I_RTC_SECOND,
+ .base_year = SUN7I_RTC_BASE_YEAR,
};
static const struct of_compat_data compat_data[] = {
- { "allwinner,sun6i-a31-rtc", RTC_SUN6I },
- { "allwinner,sun7i-a20-rtc", RTC_SUN7I },
+ { "allwinner,sun4i-a10-rtc", (uintptr_t)&sun4i_rtc_config },
+ { "allwinner,sun6i-a31-rtc", (uintptr_t)&sun6i_rtc_config },
+ { "allwinner,sun7i-a20-rtc", (uintptr_t)&sun7i_rtc_config },
{ NULL }
};
@@ -80,6 +138,7 @@
bus_space_tag_t sc_bst;
bus_space_handle_t sc_bsh;
struct todr_chip_handle sc_todr;
+ const struct sunxi_rtc_config *sc_conf;
};
#define RTC_READ(sc, reg) \
@@ -90,11 +149,8 @@
static int sunxi_rtc_match(device_t, cfdata_t, void *);
static void sunxi_rtc_attach(device_t, device_t, void *);
-static int sun6i_rtc_gettime(todr_chip_handle_t, struct clock_ymdhms *);
-static int sun6i_rtc_settime(todr_chip_handle_t, struct clock_ymdhms *);
-
-static int sun7i_rtc_gettime(todr_chip_handle_t, struct clock_ymdhms *);
-static int sun7i_rtc_settime(todr_chip_handle_t, struct clock_ymdhms *);
+static int sunxi_rtc_gettime(todr_chip_handle_t, struct clock_ymdhms *);
+static int sunxi_rtc_settime(todr_chip_handle_t, struct clock_ymdhms *);
CFATTACH_DECL_NEW(sunxi_rtc, sizeof(struct sunxi_rtc_softc),
sunxi_rtc_match, sunxi_rtc_attach, NULL, NULL);
@@ -113,7 +169,6 @@
struct sunxi_rtc_softc * const sc = device_private(self);
struct fdt_attach_args * const faa = aux;
const int phandle = faa->faa_phandle;
- enum sunxi_rtc_type type;
bus_addr_t addr;
bus_size_t size;
@@ -128,133 +183,71 @@
aprint_error(": couldn't map registers\n");
return;
}
+ sc->sc_conf = (void *)of_search_compatible(phandle, compat_data)->data;
aprint_naive("\n");
aprint_normal(": RTC\n");
- type = of_search_compatible(phandle, compat_data)->data;
-
sc->sc_todr.cookie = sc;
- switch (type) {
- case RTC_SUN6I:
- sc->sc_todr.todr_gettime_ymdhms = sun6i_rtc_gettime;
- sc->sc_todr.todr_settime_ymdhms = sun6i_rtc_settime;
- break;
- case RTC_SUN7I:
- sc->sc_todr.todr_gettime_ymdhms = sun7i_rtc_gettime;
- sc->sc_todr.todr_settime_ymdhms = sun7i_rtc_settime;
- break;
- }
+ sc->sc_todr.todr_gettime_ymdhms = sunxi_rtc_gettime;
+ sc->sc_todr.todr_settime_ymdhms = sunxi_rtc_settime;
fdtbus_todr_attach(self, phandle, &sc->sc_todr);
}
static int
-sun6i_rtc_gettime(todr_chip_handle_t tch, struct clock_ymdhms *dt)
+sunxi_rtc_gettime(todr_chip_handle_t tch, struct clock_ymdhms *dt)
{
struct sunxi_rtc_softc *sc = tch->cookie;
+ const struct sunxi_rtc_config *conf = sc->sc_conf;
- const uint32_t yymmdd = RTC_READ(sc, SUN6I_RTC_YY_MM_DD_REG);
- const uint32_t hhmmss = RTC_READ(sc, SUN6I_RTC_HH_MM_SS_REG);
+ const uint32_t yymmdd = RTC_READ(sc, conf->yy_mm_dd_reg);
+ const uint32_t hhmmss = RTC_READ(sc, conf->hh_mm_ss_reg);
- dt->dt_year = __SHIFTOUT(yymmdd, SUN6I_RTC_YEAR) + SUNXI_RTC_BASE_YEAR;
- dt->dt_mon = __SHIFTOUT(yymmdd, SUN6I_RTC_MONTH);
- dt->dt_day = __SHIFTOUT(yymmdd, SUN6I_RTC_DAY);
- dt->dt_wday = __SHIFTOUT(hhmmss, SUN6I_RTC_WK_NO);
- dt->dt_hour = __SHIFTOUT(hhmmss, SUN6I_RTC_HOUR);
- dt->dt_min = __SHIFTOUT(hhmmss, SUN6I_RTC_MINUTE);
- dt->dt_sec = __SHIFTOUT(hhmmss, SUN6I_RTC_SECOND);
+ dt->dt_year = __SHIFTOUT(yymmdd, conf->year) + conf->base_year;
+ dt->dt_mon = __SHIFTOUT(yymmdd, conf->month);
+ dt->dt_day = __SHIFTOUT(yymmdd, conf->day);
+ dt->dt_wday = __SHIFTOUT(hhmmss, conf->wk_no);
+ dt->dt_hour = __SHIFTOUT(hhmmss, conf->hour);
+ dt->dt_min = __SHIFTOUT(hhmmss, conf->minute);
+ dt->dt_sec = __SHIFTOUT(hhmmss, conf->second);
return 0;
}
static int
-sun6i_rtc_settime(todr_chip_handle_t tch, struct clock_ymdhms *dt)
+sunxi_rtc_settime(todr_chip_handle_t tch, struct clock_ymdhms *dt)
{
struct sunxi_rtc_softc *sc = tch->cookie;
+ const struct sunxi_rtc_config *conf = sc->sc_conf;
uint32_t yymmdd, hhmmss, maxyear;
/*
* Sanity check the date before writing it back
*/
- if (dt->dt_year < SUNXI_RTC_BASE_YEAR) {
+ if (dt->dt_year < conf->base_year) {
aprint_normal_dev(sc->sc_dev, "year pre the epoch: %llu, "
"not writing back time\n", dt->dt_year);
return EIO;
}
- maxyear = __SHIFTOUT(0xffffffff, SUN6I_RTC_YEAR) + SUNXI_RTC_BASE_YEAR;
+ maxyear = __SHIFTOUT(0xffffffff, conf->year) + conf->base_year;
if (dt->dt_year > maxyear) {
aprint_normal_dev(sc->sc_dev, "year exceeds available field:"
" %llu, not writing back time\n", dt->dt_year);
return EIO;
}
- yymmdd = __SHIFTIN(dt->dt_year - SUNXI_RTC_BASE_YEAR, SUN6I_RTC_YEAR);
- yymmdd |= __SHIFTIN(dt->dt_mon, SUN6I_RTC_MONTH);
- yymmdd |= __SHIFTIN(dt->dt_day, SUN6I_RTC_DAY);
-
- hhmmss = __SHIFTIN(dt->dt_wday, SUN6I_RTC_WK_NO);
- hhmmss |= __SHIFTIN(dt->dt_hour, SUN6I_RTC_HOUR);
- hhmmss |= __SHIFTIN(dt->dt_min, SUN6I_RTC_MINUTE);
- hhmmss |= __SHIFTIN(dt->dt_sec, SUN6I_RTC_SECOND);
-
- RTC_WRITE(sc, SUN6I_RTC_YY_MM_DD_REG, yymmdd);
- RTC_WRITE(sc, SUN6I_RTC_HH_MM_SS_REG, hhmmss);
-
- return 0;
-}
+ yymmdd = __SHIFTIN(dt->dt_year - conf->base_year, conf->year);
+ yymmdd |= __SHIFTIN(dt->dt_mon, conf->month);
+ yymmdd |= __SHIFTIN(dt->dt_day, conf->day);
-static int
-sun7i_rtc_gettime(todr_chip_handle_t tch, struct clock_ymdhms *dt)
-{
- struct sunxi_rtc_softc *sc = tch->cookie;
-
- const uint32_t yymmdd = RTC_READ(sc, SUN7I_RTC_YY_MM_DD_REG);
- const uint32_t hhmmss = RTC_READ(sc, SUN7I_RTC_HH_MM_SS_REG);
+ hhmmss = __SHIFTIN(dt->dt_wday, conf->wk_no);
+ hhmmss |= __SHIFTIN(dt->dt_hour, conf->hour);
+ hhmmss |= __SHIFTIN(dt->dt_min, conf->minute);
+ hhmmss |= __SHIFTIN(dt->dt_sec, conf->second);
- dt->dt_year = __SHIFTOUT(yymmdd, SUN7I_RTC_YEAR) + SUNXI_RTC_BASE_YEAR;
- dt->dt_mon = __SHIFTOUT(yymmdd, SUN7I_RTC_MONTH);
- dt->dt_day = __SHIFTOUT(yymmdd, SUN7I_RTC_DAY);
- dt->dt_wday = __SHIFTOUT(hhmmss, SUN7I_RTC_WK_NO);
- dt->dt_hour = __SHIFTOUT(hhmmss, SUN7I_RTC_HOUR);
- dt->dt_min = __SHIFTOUT(hhmmss, SUN7I_RTC_MINUTE);
- dt->dt_sec = __SHIFTOUT(hhmmss, SUN7I_RTC_SECOND);
+ RTC_WRITE(sc, conf->yy_mm_dd_reg, yymmdd);
+ RTC_WRITE(sc, conf->hh_mm_ss_reg, hhmmss);
return 0;
}
-
-static int
-sun7i_rtc_settime(todr_chip_handle_t tch, struct clock_ymdhms *dt)
-{
- struct sunxi_rtc_softc *sc = tch->cookie;
- uint32_t yymmdd, hhmmss, maxyear;
-
- /*
- * Sanity check the date before writing it back
- */
- if (dt->dt_year < SUNXI_RTC_BASE_YEAR) {
- aprint_normal_dev(sc->sc_dev, "year pre the epoch: %llu, "
- "not writing back time\n", dt->dt_year);
- return EIO;
- }
- maxyear = __SHIFTOUT(0xffffffff, SUN7I_RTC_YEAR) + SUNXI_RTC_BASE_YEAR;
- if (dt->dt_year > maxyear) {
- aprint_normal_dev(sc->sc_dev, "year exceeds available field:"
- " %llu, not writing back time\n", dt->dt_year);
- return EIO;
- }
-
- yymmdd = __SHIFTIN(dt->dt_year - SUNXI_RTC_BASE_YEAR, SUN7I_RTC_YEAR);
- yymmdd |= __SHIFTIN(dt->dt_mon, SUN7I_RTC_MONTH);
- yymmdd |= __SHIFTIN(dt->dt_day, SUN7I_RTC_DAY);
-
- hhmmss = __SHIFTIN(dt->dt_wday, SUN7I_RTC_WK_NO);
- hhmmss |= __SHIFTIN(dt->dt_hour, SUN7I_RTC_HOUR);
- hhmmss |= __SHIFTIN(dt->dt_min, SUN7I_RTC_MINUTE);
- hhmmss |= __SHIFTIN(dt->dt_sec, SUN7I_RTC_SECOND);
-
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