[U-Boot] [PATCH 09/10 v2] arm: mvebu: Enable USB EHCI support on Armada XP
Stefan Roese
sr at denx.de
Thu Jul 23 16:53:48 CEST 2015
On 23.07.2015 16:17, Marek Vasut wrote:
> On Thursday, July 23, 2015 at 01:02:46 PM, Stefan Roese wrote:
>> This patch enables the USB EHCI support for the Marvell Armada XP (AXP)
>> SoCs. In compatism to the Armada 38x (A38x), the AXP needs to configure
>> the USB PLL and the USB PHY's specifically in U-Boot. The A38x has done
>> this already in the bin_hdr (SPL U-Boot). Without this, accessing the
>> controller registers in U-Boot or Linux will hang the CPU.
>>
>> Additionally, the AXP uses a different USB EHCI base address. This
>> patch also takes care of this by runtime SoC detection in the Marvell
>> EHCI driver.
>
> [...]
>
>> diff --git a/drivers/usb/host/ehci-marvell.c
>> b/drivers/usb/host/ehci-marvell.c index 03c489c..826e7f7 100644
>> --- a/drivers/usb/host/ehci-marvell.c
>> +++ b/drivers/usb/host/ehci-marvell.c
>> @@ -33,7 +33,14 @@ DECLARE_GLOBAL_DATA_PTR;
>> */
>> #ifdef CONFIG_ARMADA_XP
>>
>> -#define MVUSB0_BASE MVEBU_USB20_BASE
>> +/*
>> + * Armada XP and Armada 38x have different base addresses for
>> + * the USB 2.0 EHCI host controller. So we need to provide
>> + * a mechnism to support both here.
>
> mechanism (I can fix that myself)
>
>> + */
>> +#define MVUSB0_BASE \
>> + (mvebu_soc_family() == MVEBU_SOC_A38X ? \
>> + MVEBU_USB20_BASE : MVEBU_AXP_USB_BASE)
>>
>> /*
>> * Once all the older Marvell SoC's (Orion, Kirkwood) are converted
>
> Do you want me to pick this via USB tree ?
If you have no objections, then it would be easer if Luka pushes all
patches together. Since there might be conflicts in the arch/arm/ files
otherwise.
Thanks,
Stefan
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