usb: dwc2: add support for Meson8b and GXBB SoCs

Add compatible strings for amlogic Meson8b and GXBB SoCs with the
corresponding configuration parameters.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>

2 files changed, 36 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/usb/dwc2.txt b/Documentation/devicetree/bindings/usb/dwc2.txt
index 20a68bf2b4e7..2c30a5479069 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 fc6f5251de5d..8f7b34c8a5d4 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);