Commit be877fbf authored by Dmitry Rokosov's avatar Dmitry Rokosov Committed by Greg Kroah-Hartman
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usb: dwc2: support dwc2 IP for Amlogic A1 SoC family 



The Amlogic A1 uses dwc2 Synopsys IP as its USB peripheral (gadget)
endpoint, with different DWC2 parameters when compared to previous
Amlogic SoCs.

Signed-off-by: default avatarDmitry Rokosov <ddrokosov@sberdevices.ru>
Reviewed-by: default avatarNeil Armstrong <neil.armstrong@linaro.org>
Acked-by: default avatarMinas Harutyunyan <Minas.Harutyunyan@synopsys.com>
Link: https://lore.kernel.org/r/20230511210455.6634-2-ddrokosov@sberdevices.ru


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent d34f9baf

drivers/usb/dwc2/params.c

+21 −0
Original line number Diff line number Diff line
@@ -161,6 +161,25 @@ static void dwc2_set_amlogic_g12a_params(struct dwc2_hsotg *hsotg) 
	p->hird_threshold_en = false;

}



static void dwc2_set_amlogic_a1_params(struct dwc2_hsotg *hsotg)

{

	struct dwc2_core_params *p = &hsotg->params;



	p->otg_caps.hnp_support = false;

	p->otg_caps.srp_support = false;

	p->speed = DWC2_SPEED_PARAM_HIGH;

	p->host_rx_fifo_size = 192;

	p->host_nperio_tx_fifo_size = 128;

	p->host_perio_tx_fifo_size = 128;

	p->phy_type = DWC2_PHY_TYPE_PARAM_UTMI;

	p->phy_utmi_width = 8;

	p->ahbcfg = GAHBCFG_HBSTLEN_INCR8 << GAHBCFG_HBSTLEN_SHIFT;

	p->lpm = false;

	p->lpm_clock_gating = false;

	p->besl = false;

	p->hird_threshold_en = false;

}



static void dwc2_set_amcc_params(struct dwc2_hsotg *hsotg)

{

	struct dwc2_core_params *p = &hsotg->params;
@@ -258,6 +277,8 @@ const struct of_device_id dwc2_of_match_table[] = { 
	  .data = dwc2_set_amlogic_params },

	{ .compatible = "amlogic,meson-g12a-usb",

	  .data = dwc2_set_amlogic_g12a_params },

	{ .compatible = "amlogic,meson-a1-usb",

	  .data = dwc2_set_amlogic_a1_params },

	{ .compatible = "amcc,dwc-otg", .data = dwc2_set_amcc_params },

	{ .compatible = "apm,apm82181-dwc-otg", .data = dwc2_set_amcc_params },

	{ .compatible = "st,stm32f4x9-fsotg",