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The RTC initialization values are based on the SoC which can be

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determined at runtime so there's no need to set the values in
each DTS.
Tested on YYHD18 (aml8726-m3), VSATV102 (aml8726-m6), and
ODROIDC1 (aml8726-m8b).

Differential Revision:	https://reviews.freebsd.org/D2588
Submitted by:		John Wehle
This commit is contained in:
Ganbold Tsagaankhuu 2015-05-21 07:01:08 +00:00
parent da3067c138
commit 37da2ff61a
3 changed files with 18 additions and 41 deletions
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51
sys/arm/amlogic/aml8726/aml8726_rtc.c
View File

@ -51,6 +51,8 @@ __FBSDID("$FreeBSD$");
#include <dev/ofw/ofw_bus.h>
#include <dev/ofw/ofw_bus_subr.h>
#include <arm/amlogic/aml8726/aml8726_soc.h>
#include "clock_if.h"
/*
@ -372,45 +374,28 @@ static int
aml8726_rtc_attach(device_t dev)
{
struct aml8726_rtc_softc *sc = device_get_softc(dev);
boolean_t init_always_valid;
char *init_always;
pcell_t prop;
phandle_t node;
ssize_t len;
sc->dev = dev;
node = ofw_bus_get_node(dev);
len = OF_getprop_alloc(node, "init-always",
sizeof(char), (void **)&init_always);
sc->init.always = FALSE;
init_always_valid = FALSE;
if (len > 0) {
if (strncmp(init_always, "true", len) == 0) {
sc->init.always = TRUE;
init_always_valid = TRUE;
} else if (strncmp(init_always, "false", len) == 0)
init_always_valid = TRUE;
free(init_always, M_OFWPROP);
}
if (init_always_valid == FALSE) {
device_printf(dev, "missing init-always attribute in FDT\n");
switch (aml8726_soc_hw_rev) {
case AML_SOC_HW_REV_M3:
sc->init.always = true;
sc->init.xo = 0x3c0a;
sc->init.gpo = 0x100000;
break;
case AML_SOC_HW_REV_M6:
case AML_SOC_HW_REV_M8:
case AML_SOC_HW_REV_M8B:
sc->init.always = false;
sc->init.xo = 0x180a;
sc->init.gpo = 0x500000;
break;
default:
device_printf(dev, "unsupported SoC\n");
return (ENXIO);
/* NOTREACHED */
}
if (OF_getencprop(node, "xo-init", &prop, sizeof(prop)) <= 0) {
device_printf(dev, "missing xo-init attribute in FDT\n");
return (ENXIO);
}
sc->init.xo = prop;
if (OF_getencprop(node, "gpo-init", &prop, sizeof(prop)) <= 0) {
device_printf(dev, "missing gpo-init attribute in FDT\n");
return (ENXIO);
}
sc->init.gpo = prop;
if (bus_alloc_resources(dev, aml8726_rtc_spec, sc->res)) {
device_printf(dev, "can not allocate resources for device\n");
return (ENXIO);

4
sys/boot/fdt/dts/arm/odroidc1.dts
View File

@ -194,10 +194,6 @@
compatible = "amlogic,aml8726-rtc";
reg = <0xc8100740 20>; /* aobus 0x1d0 */
interrupts = <0 72 1>;
init-always = "false";
xo-init = <0x180a>;
gpo-init = <0x500000>;
};
clkmsr: clkmsr@c1108758 {

4
sys/boot/fdt/dts/arm/vsatv102-m6.dts
View File

@ -153,10 +153,6 @@
compatible = "amlogic,aml8726-rtc";
reg = <0xda004340 20>; /* secbus2 0xd0 */
interrupts = <0 72 1>; /* AM_IRQ2(8) */
init-always = "false";
xo-init = <0x180a>;
gpo-init = <0x500000>;
};
clkmsr: clkmsr@c1108758 {