Aren
/
NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Get the Odroid-U3 USB hub working! It now attaches and /lists all its children 

like mouse etc.
This commit is contained in:
reinoud 2014-05-10 22:24:32 +00:00
parent d1893a9057
commit 7e3e102eb9
1 changed files with 78 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

81
sys/arch/evbarm/odroid/odroid_machdep.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: odroid_machdep.c,v 1.14 2014/05/10 20:24:06 reinoud Exp $ */
/* $NetBSD: odroid_machdep.c,v 1.15 2014/05/10 22:24:32 reinoud Exp $ */
/*
* Copyright (c) 2014 The NetBSD Foundation, Inc.
@ -31,7 +31,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: odroid_machdep.c,v 1.14 2014/05/10 20:24:06 reinoud Exp $");
__KERNEL_RCSID(0, "$NetBSD: odroid_machdep.c,v 1.15 2014/05/10 22:24:32 reinoud Exp $");
#include "opt_evbarm_boardtype.h"
#include "opt_exynos.h"
@ -518,7 +518,8 @@ odroid_exynos4_gpio_ncs(device_t self, prop_dictionary_t dict) {
prop_dictionary_set_uint32(dict, "nc-GPX0", 0xff - 0x00);
prop_dictionary_set_uint32(dict, "nc-GPX1", 0xff - 0x00);
prop_dictionary_set_uint32(dict, "nc-GPX2", 0xff - 0x00);
prop_dictionary_set_uint32(dict, "nc-GPX3", 0xff - 0x00);
/* hub communication at pin 0, 4, 5: */
prop_dictionary_set_uint32(dict, "nc-GPX3", 0xff - 0x31);
prop_dictionary_set_uint32(dict, "nc-GPZ", 0xff - 0x00);
prop_dictionary_set_uint32(dict, "nc-GPV0", 0xff - 0x00);
prop_dictionary_set_uint32(dict, "nc-GPV1", 0xff - 0x00);
@ -559,6 +560,12 @@ odroid_device_register(device_t self, void *aux)
if (device_is_a(self, "mct"))
prop_dictionary_set_cstring(dict, "heartbeat", "led1");
if (device_is_a(self, "exyousb")) {
prop_dictionary_set_cstring(dict, "nreset", "hub_nreset");
prop_dictionary_set_cstring(dict, "hubconnect", "hub_connect");
prop_dictionary_set_cstring(dict, "nint", "hub_nint");
}
#ifdef EXYNOS4
if (device_is_a(self, "exyogpio") && (IS_EXYNOS4_P())) {
/* unused bits */
@ -566,6 +573,10 @@ odroid_device_register(device_t self, void *aux)
/* explicit pin settings */
prop_dictionary_set_cstring(dict, "led1", ">GPC1[0]");
prop_dictionary_set_cstring(dict, "hub_nreset", ">GPX3[5]");
prop_dictionary_set_cstring(dict, "hub_connect", ">GPX3[4]");
prop_dictionary_set_cstring(dict, "hub_nint", "<GPX3[0]");
}
#endif
#ifdef EXYNOS5
@ -579,9 +590,73 @@ odroid_device_register(device_t self, void *aux)
}
static void
exynos_usb_init_usb3503_hub(device_t self)
{
prop_dictionary_t dict = device_properties(self);
const char *pin_nreset, *pin_hubconnect, *pin_nint;
struct exynos_gpio_pindata nreset_pin, hubconnect_pin, nint_pin;
int ok1, ok2, ok3;
prop_dictionary_get_cstring_nocopy(dict, "nreset", &pin_nreset);
prop_dictionary_get_cstring_nocopy(dict, "hubconnect", &pin_hubconnect);
prop_dictionary_get_cstring_nocopy(dict, "nint", &pin_nint);
if (pin_nreset && pin_hubconnect && pin_nint) {
ok1 = exynos_gpio_pin_reserve(pin_nreset, &nreset_pin);
ok2 = exynos_gpio_pin_reserve(pin_hubconnect, &hubconnect_pin);
ok3 = exynos_gpio_pin_reserve(pin_nint, &nint_pin);
if (!ok1)
aprint_error_dev(self,
"can't reserve GPIO pin %s\n", pin_nreset);
if (!ok2)
aprint_error_dev(self,
"can't reserve GPIO pin %s\n", pin_hubconnect);
if (!ok3)
aprint_error_dev(self,
"can't reserve GPIO pin %s\n", pin_nint);
if (!(ok1 && ok2 && ok3))
return;
/* reset pin to zero */
exynos_gpio_pindata_write(&nreset_pin, 0);
DELAY(10000);
/* pull intn low */
exynos_gpio_pindata_ctl(&nint_pin, GPIO_PIN_PULLDOWN);
DELAY(10000);
/* set hubconnect low */
exynos_gpio_pindata_write(&hubconnect_pin, 0);
DELAY(10000);
/* reset pin up again, hub enters RefClk stage */
exynos_gpio_pindata_write(&nreset_pin, 1);
DELAY(10000);
/* set hubconnect high */
exynos_gpio_pindata_write(&hubconnect_pin, 1);
DELAY(10000);
/* release intn */
exynos_gpio_pindata_ctl(&nint_pin, GPIO_PIN_TRISTATE);
DELAY(10000);
/* DONE! */
} else {
aprint_error_dev(self, "failed to lookup GPIO pins");
}
/* XXX leaving pins claimed! */
}
void
odroid_device_register_post_config(device_t self, void *aux)
{
exynos_device_register_post_config(self, aux);
if (device_is_a(self, "exyousb")) {
exynos_usb_init_usb3503_hub(self);
/* TBD power cycle USB ethernet chip */
}
}