[PATCH 2/7] usb: dwc2: add support for Meson8b and GXBB SoCs

[John Youn]

On 9/4/2016 2:32 PM, Martin Blumenstingl wrote:
> From: Jerome Brunet <jbrunet at baylibre.com>
> 
> Add compatible strings for amlogic Meson8b and GXBB SoCs with the
> corresponding configuration parameters.
> 
> Signed-off-by: Martin Blumenstingl <martin.blumenstingl at googlemail.com>
> Signed-off-by: Jerome Brunet <jbrunet at baylibre.com>
> ---
>  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);
> 

Hi,

I have a patch series in the works that deprecates the usage of these
static parameters in favor of devicetree properties. I'll try to push
it out soon. I would rather not see any more static params structures
in the driver so hopefully we can make it work for your platform.

Regards,
John