[PATCH v2 1/6] usb: dwc2: add support for Meson8b and GXBB SoCs

[Kevin Hilman]

Hi John,

Martin Blumenstingl <martin.blumenstingl at googlemail.com> writes:

> From: Jerome Brunet <jbrunet at baylibre.com>
>
> Add compatible strings for amlogic Meson8b and GXBB SoCs with the
> corresponding configuration parameters.
>
> Signed-off-by: Jerome Brunet <jbrunet at baylibre.com>
> Signed-off-by: Martin Blumenstingl <martin.blumenstingl at googlemail.com>

Are you OK with adding this platform for v4.9?  I know you mentioned
you're working on new bindings to replace the current way, but since
that hasn't been posted AFAICT, it would be nice to get this merged now
and we can help test the new bindings when you're ready.

If you're OK with that, and with your Ack, I can take merge the driver
changes through the arm-soc tree along with the rest of the DT patches.

Kevin

> ---
>  Documentation/devicetree/bindings/usb/dwc2.txt |  2 ++
>  drivers/usb/dwc2/platform.c                    | 34 ++++++++++++++++++++++++++
>  2 files changed, 36 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/usb/dwc2.txt b/Documentation/devicetree/bindings/usb/dwc2.txt
> index 20a68bf..2c30a54 100644
> --- a/Documentation/devicetree/bindings/usb/dwc2.txt
> +++ b/Documentation/devicetree/bindings/usb/dwc2.txt
> @@ -10,6 +10,8 @@ Required properties:
>    - "rockchip,rk3288-usb", "rockchip,rk3066-usb", "snps,dwc2": for rk3288 Soc;
>    - "lantiq,arx100-usb": The DWC2 USB controller instance in Lantiq ARX SoCs;
>    - "lantiq,xrx200-usb": The DWC2 USB controller instance in Lantiq XRX SoCs;
> +  - "amlogic,meson8b-usb": The DWC2 USB controller instance in Amlogic Meson8b SoCs;
> +  - "amlogic,meson-gxbb-usb": The DWC2 USB controller instance in Amlogic S905 SoCs;
>    - snps,dwc2: A generic DWC2 USB controller with default parameters.
>  - reg : Should contain 1 register range (address and length)
>  - interrupts : Should contain 1 interrupt
> diff --git a/drivers/usb/dwc2/platform.c b/drivers/usb/dwc2/platform.c
> index fc6f525..8f7b34c 100644
> --- a/drivers/usb/dwc2/platform.c
> +++ b/drivers/usb/dwc2/platform.c
> @@ -181,6 +181,38 @@ static const struct dwc2_core_params params_ltq = {
>  	.hibernation			= -1,
>  };
>  
> +static const struct dwc2_core_params params_amlogic = {
> +	.otg_cap			= DWC2_CAP_PARAM_NO_HNP_SRP_CAPABLE,
> +	.otg_ver			= -1,
> +	.dma_enable			= 1,
> +	.dma_desc_enable		= 0,
> +	.dma_desc_fs_enable		= 0,
> +	.speed				= DWC2_SPEED_PARAM_HIGH,
> +	.enable_dynamic_fifo		= 1,
> +	.en_multiple_tx_fifo		= -1,
> +	.host_rx_fifo_size		= 512,
> +	.host_nperio_tx_fifo_size	= 500,
> +	.host_perio_tx_fifo_size	= 500,
> +	.max_transfer_size		= -1,
> +	.max_packet_count		= -1,
> +	.host_channels			= 16,
> +	.phy_type			= DWC2_PHY_TYPE_PARAM_UTMI,
> +	.phy_utmi_width			= -1,
> +	.phy_ulpi_ddr			= -1,
> +	.phy_ulpi_ext_vbus		= -1,
> +	.i2c_enable			= -1,
> +	.ulpi_fs_ls			= -1,
> +	.host_support_fs_ls_low_power	= -1,
> +	.host_ls_low_power_phy_clk	= -1,
> +	.ts_dline			= -1,
> +	.reload_ctl			= 1,
> +	.ahbcfg				= GAHBCFG_HBSTLEN_INCR8 <<
> +					  GAHBCFG_HBSTLEN_SHIFT,
> +	.uframe_sched			= 0,
> +	.external_id_pin_ctl		= -1,
> +	.hibernation			= -1,
> +};
> +
>  /*
>   * Check the dr_mode against the module configuration and hardware
>   * capabilities.
> @@ -464,6 +496,8 @@ static const struct of_device_id dwc2_of_match_table[] = {
>  	{ .compatible = "lantiq,xrx200-usb", .data = &params_ltq },
>  	{ .compatible = "snps,dwc2", .data = NULL },
>  	{ .compatible = "samsung,s3c6400-hsotg", .data = NULL},
> +	{ .compatible = "amlogic,meson8b-usb", .data = &params_amlogic },
> +	{ .compatible = "amlogic,meson-gxbb-usb", .data = &params_amlogic },
>  	{},
>  };
>  MODULE_DEVICE_TABLE(of, dwc2_of_match_table);