On Wednesday, December 16, 2015 at 05:05:15 PM, Alexey Brodkin wrote:
> This commit adds support of USB 1.1 storage media on AXS103 board.
> For some yet unknown reason USB 2.0 doesn't work on AXS103 board issuing
> messages like this:
> ------------------------>8-------------------
> AXS# usb start
> starting USB...
> USB0: USB EHCI 1.00
> scanning bus 0 for devices... EHCI timed out on TD - token=0x80008c80
> unable to get device descriptor (error=-1)
> 1 USB Device(s) found
> ------------------------>8-------------------
Try defining CONFIG_EHCI_IS_TDI , that _might_ help.
> As a work-around we're falling back to USB 1.1.
> Indeed it is much slower but at least USB storage devices are usable on
> AXS103.
>
> Signed-off-by: Alexey Brodkin <abrod...@synopsys.com>
> Cc: Marek Vasut <ma...@denx.de>
> Cc: Simon Glass <s...@chromium.org>
> ---
> arch/arc/dts/axs10x.dts | 6 ++++++
> configs/axs103_defconfig | 3 +--
> include/configs/axs101.h | 6 ++++++
> 3 files changed, 13 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arc/dts/axs10x.dts b/arch/arc/dts/axs10x.dts
> index 80e6d6b..391d067 100644
> --- a/arch/arc/dts/axs10x.dts
> +++ b/arch/arc/dts/axs10x.dts
> @@ -48,4 +48,10 @@
> reg = < 0xe0040000 0x100 >;
> interrupts = < 8 >;
> };
> +
> + ohci@0xe0060000 {
> + compatible = "generic-ohci";
> + reg = < 0xe0060000 0x100 >;
> + interrupts = < 8 >;
> + };
> };
> diff --git a/configs/axs103_defconfig b/configs/axs103_defconfig
> index 3c65c83..a208a27 100644
> --- a/configs/axs103_defconfig
> +++ b/configs/axs103_defconfig
> @@ -21,7 +21,6 @@ CONFIG_ETH_DESIGNWARE=y
> CONFIG_SYS_NS16550=y
> CONFIG_USB=y
> CONFIG_DM_USB=y
> -CONFIG_USB_EHCI_HCD=y
> -CONFIG_USB_EHCI_GENERIC=y
> +CONFIG_USB_OHCI_GENERIC=y
> CONFIG_USB_STORAGE=y
> CONFIG_USE_PRIVATE_LIBGCC=y
> diff --git a/include/configs/axs101.h b/include/configs/axs101.h
> index 650d97d..c92cca2 100644
> --- a/include/configs/axs101.h
> +++ b/include/configs/axs101.h
> @@ -105,6 +105,12 @@
> #define CONFIG_DW_AUTONEG
>
> /*
> + * USB 1.1 configuration
> + */
> +#define CONFIG_USB_OHCI_NEW
> +#define CONFIG_SYS_USB_OHCI_MAX_ROOT_PORTS 1
> +
> +/*
> * Commands still not supported in Kconfig
> */
> #define CONFIG_CMD_FAT
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