lantiq: Add sensible hw-defaults for dwc2

Lantiq driver does not work with autodetected fifo sizes so use ones
from original ltq-hcd driver in dwc2. Other values can be
autodetected.

Signed-off-by: Antti Seppälä <a.seppala@gmail.com>
Signed-off-by: Vincent Pelletier <plr.vincent@gmail.com>
SVN-Revision: 44674

diff --git a/target/linux/lantiq/patches-3.18/0041-USB-DWC2-add-ltq-params.patch b/target/linux/lantiq/patches-3.18/0041-USB-DWC2-add-ltq-params.patch
new file mode 100644 (file)
index 0000000..74e9ecc
--- /dev/null
+++ b/target/linux/lantiq/patches-3.18/0041-USB-DWC2-add-ltq-params.patch
@@ -0,0 +1,45 @@
+--- a/drivers/usb/dwc2/platform.c      2015-02-09 19:37:34.553109992 +0200
++++ b/drivers/usb/dwc2/platform.c      2015-02-09 19:38:30.090111260 +0200
+@@ -105,6 +105,34 @@
+       .uframe_sched                   = -1,
+ };
+ 
++static const struct dwc2_core_params params_ltq = {
++      .otg_cap                        = -1,
++      .otg_ver                        = -1,
++      .dma_enable                     = -1,
++      .dma_desc_enable                = -1,
++      .speed                          = -1,
++      .enable_dynamic_fifo            = -1,
++      .en_multiple_tx_fifo            = -1,
++      .host_rx_fifo_size              = 240,  /* 240 DWORDs */
++      .host_nperio_tx_fifo_size       = 240,  /* 240 DWORDs */
++      .host_perio_tx_fifo_size        = 32,   /* 32 DWORDs */
++      .max_transfer_size              = -1,
++      .max_packet_count               = -1,
++      .host_channels                  = -1,
++      .phy_type                       = -1,
++      .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                         = -1,
++      .uframe_sched                   = -1,
++};
++
+ /**
+  * dwc2_driver_remove() - Called when the DWC_otg core is unregistered with the
+  * DWC_otg driver
+@@ -128,6 +156,7 @@
+ static const struct of_device_id dwc2_of_match_table[] = {
+       { .compatible = "brcm,bcm2835-usb", .data = &params_bcm2835 },
+       { .compatible = "rockchip,rk3066-usb", .data = &params_rk3066 },
++      { .compatible = "lantiq,ifxhcd-xrx200-dwc2", .data = &params_ltq },
+       { .compatible = "snps,dwc2", .data = NULL },
+       {},
+ };