static phandle_t
find_node_for_device(const char *device, const char **compatible)
{
int i;
phandle_t node;
/*
* Try to access the node directly i.e. through /aliases/.
*/
if ((node = OF_finddevice(device)) != 0)
for (i = 0; compatible[i]; i++)
if (fdt_is_compatible_strict(node, compatible[i]))
return node;
/*
* Find the node the long way.
*/
for (i = 0; compatible[i]; i++) {
if ((node = OF_finddevice("/soc")) == 0)
return (0);
if ((node = fdt_find_compatible(node, compatible[i], 1)) != 0)
return node;
}
return (0);
}
static int
aml8726_usb_phy_mode(const char *dwcotg_path, uint32_t *mode)
{
char *usb_mode;
phandle_t node;
ssize_t len;
if ((node = OF_finddevice(dwcotg_path)) == 0)
return (ENXIO);
if (fdt_is_compatible_strict(node, "synopsys,designware-hs-otg2") == 0)
return (ENXIO);
*mode = 0;
len = OF_getprop_alloc(node, "dr_mode",
sizeof(char), (void **)&usb_mode);
if (len <= 0)
return (0);
if (strcasecmp(usb_mode, "host") == 0) {
*mode = AML_USB_PHY_MISC_ID_OVERIDE_EN |
AML_USB_PHY_MISC_ID_OVERIDE_HOST;
} else if (strcasecmp(usb_mode, "peripheral") == 0) {
*mode = AML_USB_PHY_MISC_ID_OVERIDE_EN |
AML_USB_PHY_MISC_ID_OVERIDE_DEVICE;
}
free(usb_mode, M_OFWPROP);
return (0);
}
static int
fdt_pic_decode_ic(phandle_t node, pcell_t *intr, int *interrupt, int *trig,
int *pol)
{
/*
* The single core chips have just an Amlogic PIC.
*/
if (!fdt_is_compatible_strict(node, "amlogic,aml8726-pic"))
return (ENXIO);
*interrupt = fdt32_to_cpu(intr[1]);
*trig = INTR_TRIGGER_EDGE;
*pol = INTR_POLARITY_HIGH;
return (0);
}
phandle_t
fdt_find_compatible(phandle_t start, const char *compat, int strict)
{
phandle_t child;
/*
* Traverse all children of 'start' node, and find first with
* matching 'compatible' property.
*/
for (child = OF_child(start); child != 0; child = OF_peer(child))
if (fdt_is_compatible(child, compat)) {
if (strict)
if (!fdt_is_compatible_strict(child, compat))
continue;
return (child);
}
return (0);
}
phandle_t
fdt_depth_search_compatible(phandle_t start, const char *compat, int strict)
{
phandle_t child, node;
/*
* Depth-search all descendants of 'start' node, and find first with
* matching 'compatible' property.
*/
for (node = OF_child(start); node != 0; node = OF_peer(node)) {
if (fdt_is_compatible(node, compat) &&
(strict == 0 || fdt_is_compatible_strict(node, compat))) {
return (node);
}
child = fdt_depth_search_compatible(node, compat, strict);
if (child != 0)
return (child);
}
return (0);
}
static void
aml8726_fixup_busfreq(void)
{
phandle_t node;
pcell_t freq, prop;
ssize_t len;
/*
* Set the bus-frequency for the SoC simple-bus if it
* needs updating (meaning the current frequency is zero).
*/
if ((freq = aml8726_clkmsr_bus_frequency()) == 0 ||
(node = OF_finddevice("/soc")) == 0 ||
fdt_is_compatible_strict(node, "simple-bus") == 0)
while (1);
freq = cpu_to_fdt32(freq);
len = OF_getencprop(node, "bus-frequency", &prop, sizeof(prop));
if ((len / sizeof(prop)) == 1 && prop == 0)
OF_setprop(node, "bus-frequency", (void *)&freq, sizeof(freq));
}
