On 22/02/12 22:00, Kevin Hilman wrote:
> Peter Ujfalusi <peter.ujfalusi@xxxxxx> writes:
>
>> Hi,
>>
>> I hoped that time will solve this, but so far no luck. I just can not
>> get the ethernet port (along with the USB host ports) working on my xM RevC.
>> What is the trick to get it working on 3.3-rc3?
>>
>> There seams to be some configuration issue:
>>
>> [ 1.437530] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
>> [ 1.444671] ehci_hcd: block sizes: qh 64 qtd 96 itd 160 sitd 96
>> [ 1.451354] ehci-omap ehci-omap.0: failed to get ehci port0 regulator
>> [ 1.458282] ehci-omap ehci-omap.0: failed to get ehci port1 regulator
>
>
> The first thing I try when I see these regulator failures is to add
> CONFIG_REGULATOR_DUMMY=y to the .config to see if that helps. If so,
> then the board file needs some help configuring the right regulators.
>
> Kevin
> --
Apologies for the malformed patch, but I don't have time to clean it up
this morning (or test it in its cleaned state); however, the following
fixes the problem for me.
It used to be masked because u-boot turns the regulator on to activate
ethernet on Beagle xM and no-one ever turns it off again, but some versions
of u-boot don't identify xM rev C correctly, so never turn it on ..
Anyway, it's neater for the kernel to know what it's doing. And removes
a whole two lines of kernel startup output :-)
Richard.
---
commit 39d26ad563023acdddd06e8aaaf154378c373187
Author: Richard Watts <rrw@xxxxxxxxxxxxx>
Date: Fri Jan 20 12:27:59 2012 +0000
Turn on the USB regulator on Beagle xM explicitly, when the USB
subsystem asks for it, rather than relying on u-boot to do it.
diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c
index 4a71cb7..69ed6a0 100644
--- a/arch/arm/mach-omap2/board-omap3beagle.c
+++ b/arch/arm/mach-omap2/board-omap3beagle.c
@@ -362,11 +362,32 @@ static struct regulator_init_data beagle_vsim = {
.consumer_supplies = beagle_vsim_supply,
};
+static struct regulator_consumer_supply beagle_usb_supply[] = {
+ REGULATOR_SUPPLY("hsusb0", "ehci-omap.0"),
+ REGULATOR_SUPPLY("hsusb1", "ehci-omap.0")
+};
+
+static struct regulator_init_data usb_power = {
+ .constraints = {
+ .min_uV = 1800000,
+ .max_uV = 1800000,
+ .valid_modes_mask = REGULATOR_MODE_NORMAL,
+ .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
+ | REGULATOR_CHANGE_MODE
+ | REGULATOR_CHANGE_STATUS,
+ },
+ .num_consumer_supplies = ARRAY_SIZE(beagle_usb_supply),
+ .consumer_supplies = beagle_usb_supply
+};
+
+
+
static struct twl4030_platform_data beagle_twldata = {
/* platform_data for children goes here */
.gpio = &beagle_gpio_data,
.vmmc1 = &beagle_vmmc1,
.vsim = &beagle_vsim,
+ .vaux2 = &usb_power,
};
static struct i2c_board_info __initdata beagle_i2c_eeprom[] =
--
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