Module Name: src
Committed By: reinoud
Date: Fri Jun 6 14:42:26 UTC 2014
Modified Files:
src/sys/arch/evbarm/odroid: odroid_machdep.c
Log Message:
Implement Lan9730 powerycle for Exynos4 to make it attach; its not that
trivial though as it relies on talking iic to the pmu and enabling lan_power
pin.
Some pins for the Odroid-XU boards have been added too.
To generate a diff of this commit:
cvs rdiff -u -r1.20 -r1.21 src/sys/arch/evbarm/odroid/odroid_machdep.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/evbarm/odroid/odroid_machdep.c
diff -u src/sys/arch/evbarm/odroid/odroid_machdep.c:1.20 src/sys/arch/evbarm/odroid/odroid_machdep.c:1.21
--- src/sys/arch/evbarm/odroid/odroid_machdep.c:1.20 Wed May 21 12:24:11 2014
+++ src/sys/arch/evbarm/odroid/odroid_machdep.c Fri Jun 6 14:42:26 2014
@@ -1,4 +1,4 @@
-/* $NetBSD: odroid_machdep.c,v 1.20 2014/05/21 12:24:11 reinoud Exp $ */
+/* $NetBSD: odroid_machdep.c,v 1.21 2014/06/06 14:42:26 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 1.20 2014/05/21 12:24:11 reinoud Exp $");
+__KERNEL_RCSID(0, "$NetBSD: odroid_machdep.c,v 1.21 2014/06/06 14:42:26 reinoud Exp $");
#include "opt_evbarm_boardtype.h"
#include "opt_exynos.h"
@@ -202,6 +202,7 @@ void consinit(void);
#ifdef KGDB
static void kgdb_port_init(void);
#endif
+static void exynos_usb_powercycle_lan9730(device_t self);
void odroid_device_register(device_t self, void *aux);
void odroid_device_register_post_config(device_t self, void *aux);
@@ -520,7 +521,8 @@ odroid_exynos4_gpio_ncs(device_t self, p
prop_dictionary_set_uint32(dict, "nc-GPY5", 0xff - 0b00000000);
prop_dictionary_set_uint32(dict, "nc-GPY6", 0xff - 0b00000000);
prop_dictionary_set_uint32(dict, "nc-ETC0", 0x3f - 0b00000000);
- prop_dictionary_set_uint32(dict, "nc-ETC6", 0x7f - 0b00000000);
+ /* standard Xuhost bits at pin 5,6 */
+ prop_dictionary_set_uint32(dict, "nc-ETC6", 0x7f - 0b01100000);
prop_dictionary_set_uint32(dict, "nc-GPM0", 0xff - 0b00000000);
prop_dictionary_set_uint32(dict, "nc-GPM1", 0x7f - 0b00000000);
prop_dictionary_set_uint32(dict, "nc-GPM2", 0x1f - 0b00000000);
@@ -611,6 +613,12 @@ odroid_device_register(device_t self, vo
odroid_exynos5_gpio_ncs(self, dict);
/* explicit pin settings */
+ prop_dictionary_set_cstring(dict, "hub_nreset", ">GPX1[4]");
+ prop_dictionary_set_cstring(dict, "hub_connect", ">GPX0[6]");
+ prop_dictionary_set_cstring(dict, "hub_nint", "<GPX0[7]");
+
+ /* internal hub IIRC, unknown if this line exists */
+ //prop_dictionary_set_cstring(dict, "p3v3_en", ">GPA1[3]");
}
#endif
}
@@ -669,12 +677,104 @@ exynos_usb_init_usb3503_hub(device_t sel
/* DONE! */
} else {
- aprint_error_dev(self, "failed to lookup GPIO pins");
+ aprint_error_dev(self,
+ "failed to lookup GPIO pins for usb3503 hub init");
}
/* XXX leaving pins claimed! */
}
+#if 0
+static void
+exynos_max77686_dump(struct i2c_controller *i2c)
+{
+ int error;
+
+ printf("%s:\n", __func__);
+ for (int i = 0; i < 0x80; i++) {
+ error = iic_exec(i2c, I2C_OP_READ_WITH_STOP, 0x09, &i, 1,
+ &rdata, sizeof(rdata), 0);
+ KASSERT(!error);
+ if (i % 16 == 0)
+ printf("\n%02x: ", i);
+ printf("%02x ", rdata);
+ }
+ printf("\n");
+}
+#endif
+
+
+static void
+exynos_usb_powercycle_lan9730(device_t self)
+{
+#ifdef EXYNOS4
+ prop_dictionary_t dict = device_properties(self);
+ struct exynos_gpio_pindata enable_pin;
+ struct i2c_controller *i2c;
+ const char *pin_enable;
+ uint8_t rdata, wdata, reg;
+ int error;
+ bool ok;
+
+ /*
+ * XXX fixed for now:
+ * Odroid-U2/U3 : Max77686 chip is attached to iic0 chipid 0x09
+ */
+ const int iicbus = 0;
+ const int chipid = 0x09;
+ const int buck_outreg = 0x37; /* buck 8 output voltage */
+ const int buck_ctlreg = 0x38; /* buck 8 power control */
+
+ i2c = exynos_i2cbus[iicbus];
+ KASSERT(i2c);
+ iic_acquire_bus(i2c, 0);
+
+ /* set power level to 0v */
+ reg = buck_outreg;
+ wdata = 0x0;
+ error = iic_exec(i2c, I2C_OP_WRITE_WITH_STOP, chipid, ®, 1,
+ &wdata, sizeof(wdata), 0);
+ KASSERT(!error);
+ DELAY(10000);
+
+ /* set power level back to 3.3v */
+ wdata = 0x33;
+ error = iic_exec(i2c, I2C_OP_WRITE_WITH_STOP, chipid, ®, 1,
+ &wdata, sizeof(wdata), 0);
+ KASSERT(!error);
+ DELAY(10000);
+
+ /* enable the bucket explicitly */
+ reg = buck_ctlreg;
+ error = iic_exec(i2c, I2C_OP_READ_WITH_STOP, chipid, ®, 1,
+ &rdata, sizeof(rdata), 0);
+ KASSERT(!error);
+ rdata |= 3;
+ error = iic_exec(i2c, I2C_OP_WRITE_WITH_STOP, chipid, ®, 1,
+ &rdata, sizeof(rdata), 0);
+ KASSERT(!error);
+ DELAY(10000);
+
+ iic_release_bus(i2c, 0);
+
+ /* enable lan chip power */
+ prop_dictionary_get_cstring_nocopy(dict, "lan_power", &pin_enable);
+ if (pin_enable) {
+ ok = exynos_gpio_pin_reserve(pin_enable, &enable_pin);
+ if (!ok) {
+ aprint_error_dev(self,
+ "can't reserve GPIO pin %s\n", pin_enable);
+ } else {
+ exynos_gpio_pindata_write(&enable_pin, 0);
+ DELAY(10000);
+ exynos_gpio_pindata_write(&enable_pin, 1);
+ }
+ } else {
+ aprint_error_dev(self, "failed to lookup lan_power GPIO pin");
+ }
+#endif
+}
+
void
odroid_device_register_post_config(device_t self, void *aux)
@@ -682,6 +782,7 @@ odroid_device_register_post_config(devic
exynos_device_register_post_config(self, aux);
if (device_is_a(self, "exyousb")) {
+ exynos_usb_powercycle_lan9730(self);
exynos_usb_init_usb3503_hub(self);
}
}
