[U-Boot] [PATCH 09/10 v2] arm: mvebu: Enable USB EHCI support on Armada XP

Marek Vasut marex at denx.de
Thu Jul 23 16:17:15 CEST 2015


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 ?

Best regards,
Marek Vasut


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