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usb: dwc2: support dwc2 IP for Amlogic A1 SoC family

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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: Dmitry Rokosov <ddrokosov@sberdevices.ru>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Acked-by: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com>
Link: https://lore.kernel.org/r/20230511210455.6634-2-ddrokosov@sberdevices.ru
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Dmitry Rokosov 2023-05-12 00:04:53 +03:00 committed by Greg Kroah-Hartman
parent d34f9bafa7
commit be877fbf89
1 changed files with 21 additions and 0 deletions
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21
drivers/usb/dwc2/params.c
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@ -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",