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authorDmitry Rokosov <ddrokosov@sberdevices.ru>2023-05-12 00:04:53 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-05-13 19:03:24 +0900
commitbe877fbf8968f870279c8384b41c6bd6c3863068 (patch)
tree1e3b0ca02b43c778bc665c0781db284929c47986
parentd34f9bafa78da2a561c67d9daf55fc4d1d80edf0 (diff)
downloadlinux-next-be877fbf8968f870279c8384b41c6bd6c3863068.tar.gz
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: 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>
-rw-r--r--drivers/usb/dwc2/params.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/usb/dwc2/params.c b/drivers/usb/dwc2/params.c
index 21d16533bd2f..4c7c3dd15f9b 100644
--- a/drivers/usb/dwc2/params.c
+++ b/drivers/usb/dwc2/params.c
@@ -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",