There are some DWC OTG parameters which might be passed by a platform.
Declaration for structure of those parameters have been provided in this
include file.
Signed-off-by: Pratyush Anand <pratyush.anand@xxxxxx>
---
include/linux/usb/dwc_otg.h | 274 +++++++++++++++++++++++++++++++++++++++++++
1 files changed, 274 insertions(+), 0 deletions(-)
create mode 100644 include/linux/usb/dwc_otg.h
diff --git a/include/linux/usb/dwc_otg.h b/include/linux/usb/dwc_otg.h
new file mode 100644
index 0000000..aa86adc
--- /dev/null
+++ b/include/linux/usb/dwc_otg.h
@@ -0,0 +1,274 @@
+/* DWC OTG (On The Go) defines */
+
+#ifndef __LINUX_DWC_OTG_H
+#define __LINUX_DWC_OTG_H
+
+/*
+ * The following parameters may be specified when starting the module. These
+ * parameters define how the DWC_otg controller should be configured. Parameter
+ * values are passed to the CIL initialization function dwc_otg_cil_init.
+ */
+struct core_params {
+ /*
+ * Specifies the OTG capabilities. The driver will automatically
+ * detect the value for this parameter if none is specified.
+ * 0 - HNP and SRP capable (default)
+ * 1 - SRP Only capable
+ * 2 - No HNP/SRP capable
+ */
+ int otg_cap;
+#define DWC_OTG_CAP_PARAM_HNP_SRP_CAPABLE 0
+#define DWC_OTG_CAP_PARAM_SRP_ONLY_CAPABLE 1
+#define DWC_OTG_CAP_PARAM_NO_HNP_SRP_CAPABLE 2
+
+#define dwc_param_otg_cap_default DWC_OTG_CAP_PARAM_HNP_SRP_CAPABLE
+
+ /*
+ * Specifies whether to use slave or DMA mode for accessing the data
+ * FIFOs. The driver will automatically detect the value for this
+ * parameter if none is specified.
+ * 0 - Slave
+ * 1 - DMA (default, if available)
+ */
+ int dma_enable;
+#ifdef CONFIG_DWC_SLAVE
+#define dwc_param_dma_enable_default 0
+#else
+#define dwc_param_dma_enable_default 1
+#endif
+
+ /*
+ * The DMA Burst size (applicable only for External DMA Mode).
+ * 1, 4, 8 16, 32, 64, 128, 256 (default 32)
+ */
+ int dma_burst_size; /* Translate this to GAHBCFG values */
+#define dwc_param_dma_burst_size_default 32
+
+ /*
+ * Specifies the maximum speed of operation in host and device mode.
+ * The actual speed depends on the speed of the attached device and
+ * the value of phy_type. The actual speed depends on the speed of the
+ * attached device.
+ * 0 - High Speed (default)
+ * 1 - Full Speed
+ */
+ int speed;
+#define dwc_param_speed_default 0
+#define DWC_SPEED_PARAM_HIGH 0
+#define DWC_SPEED_PARAM_FULL 1
+
+ /*
+ * Specifies whether low power mode is supported when attached to a Full
+ * Speed or Low Speed device in host mode.
+ * 0 - Don't support low power mode (default)
+ * 1 - Support low power mode
+ */
+ int host_support_fs_ls_low_power;
+#define dwc_param_host_support_fs_ls_low_power_default 0
+
+ /*
+ * Specifies the PHY clock rate in low power mode when connected to a
+ * Low Speed device in host mode. This parameter is applicable only if
+ * HOST_SUPPORT_FS_LS_LOW_POWER is enabled. If PHY_TYPE is set to FS
+ * then defaults to 6 MHZ otherwise 48 MHZ.
+ *
+ * 0 - 48 MHz
+ * 1 - 6 MHz
+ */
+ int host_ls_low_power_phy_clk;
+#define dwc_param_host_ls_low_power_phy_clk_default 0
+#define DWC_HOST_LS_LOW_POWER_PHY_CLK_PARAM_48MHZ 0
+#define DWC_HOST_LS_LOW_POWER_PHY_CLK_PARAM_6MHZ 1
+
+ /*
+ * 0 - Use cC FIFO size parameters
+ * 1 - Allow dynamic FIFO sizing (default)
+ */
+ int enable_dynamic_fifo;
+#define dwc_param_enable_dynamic_fifo_default 1
+
+ /*
+ * Number of 4-byte words in the Rx FIFO in device mode when dynamic
+ * FIFO sizing is enabled. 16 to 32768 (default 1064)
+ */
+ int dev_rx_fifo_size;
+#define dwc_param_dev_rx_fifo_size_default 1064
+
+ /*
+ * Number of 4-byte words in the non-periodic Tx FIFO in device mode
+ * when dynamic FIFO sizing is enabled. 16 to 32768 (default 1024)
+ */
+ int dev_nperio_tx_fifo_size;
+#define dwc_param_dev_nperio_tx_fifo_size_default 1024
+
+ /*
+ * Number of 4-byte words in each of the periodic Tx FIFOs in device
+ * mode when dynamic FIFO sizing is enabled. 4 to 768 (default 256)
+ */
+#define MAX_TX_FIFOS 15 /* Max periodic FIFOs */
+ u32 dev_perio_tx_fifo_size[MAX_TX_FIFOS];
+#define dwc_param_dev_perio_tx_fifo_size_default 256
+
+ /*
+ * Number of 4-byte words in the Rx FIFO in host mode when dynamic
+ * FIFO sizing is enabled. 16 to 32768 (default 1024)
+ */
+ int host_rx_fifo_size;
+#define dwc_param_host_rx_fifo_size_default 1024
+
+ /*
+ * Number of 4-byte words in the non-periodic Tx FIFO in host mode
+ * when Dynamic FIFO sizing is enabled in the core. 16 to 32768
+ * (default 1024)
+ */
+ int host_nperio_tx_fifo_size;
+#define dwc_param_host_nperio_tx_fifo_size_default 1024
+
+ /*
+ Number of 4-byte words in the host periodic Tx FIFO when dynamic
+ * FIFO sizing is enabled. 16 to 32768 (default 1024)
+ */
+ int host_perio_tx_fifo_size;
+#define dwc_param_host_perio_tx_fifo_size_default 1024
+
+ /*
+ * The maximum transfer size supported in bytes. 2047 to 65,535
+ * (default 65,535)
+ */
+ int max_transfer_size;
+#define dwc_param_max_transfer_size_default 65535
+
+ /*
+ * The maximum number of packets in a transfer. 15 to 511 (default 511)
+ */
+ int max_packet_count;
+#define dwc_param_max_packet_count_default 511
+
+ /*
+ * The number of host channel registers to use.
+ * 1 to 16 (default 12)
+ * Note: The FPGA configuration supports a maximum of 12 host channels.
+ */
+ int host_channels;
+#define dwc_param_host_channels_default 12
+
+ /*
+ * The number of endpoints in addition to EP0 available for device
+ * mode operations.
+ * 1 to 15 (default 6 IN and OUT)
+ * Note: The FPGA configuration supports a maximum of 6 IN and OUT
+ * endpoints in addition to EP0.
+ */
+ int dev_endpoints;
+#define dwc_param_dev_endpoints_default 6
+
+ /*
+ * Specifies the type of PHY interface to use. By default, the driver
+ * will automatically detect the phy_type.
+ *
+ * 0 - Full Speed PHY
+ * 1 - UTMI+ (default)
+ * 2 - ULPI
+ */
+ int phy_type;
+#define DWC_PHY_TYPE_PARAM_FS 0
+#define DWC_PHY_TYPE_PARAM_UTMI 1
+#define DWC_PHY_TYPE_PARAM_ULPI 2
+#define dwc_param_phy_type_default DWC_PHY_TYPE_PARAM_UTMI
+
+ /*
+ * Specifies the UTMI+ Data Width. This parameter is applicable for a
+ * PHY_TYPE of UTMI+ or ULPI. (For a ULPI PHY_TYPE, this parameter
+ * indicates the data width between the MAC and the ULPI Wrapper.) Also,
+ * this parameter is applicable only if the OTG_HSPHY_WIDTH cC parameter
+ * was set to "8 and 16 bits", meaning that the core has been configured
+ * to work at either data path width.
+ *
+ * 8 or 16 bits (default 16)
+ */
+ int phy_utmi_width;
+#define dwc_param_phy_utmi_width_default 16
+
+ /*
+ * Specifies whether the ULPI operates at double or single
+ * data rate. This parameter is only applicable if PHY_TYPE is
+ * ULPI.
+ *
+ * 0 - single data rate ULPI interface with 8 bit wide data
+ * bus (default)
+ * 1 - double data rate ULPI interface with 4 bit wide data
+ * bus
+ */
+ int phy_ulpi_ddr;
+#define dwc_param_phy_ulpi_ddr_default 0
+
+ /*
+ * Specifies whether to use the internal or external supply to
+ * drive the vbus with a ULPI phy.
+ */
+ int phy_ulpi_ext_vbus;
+#define DWC_PHY_ULPI_INTERNAL_VBUS 0
+#define DWC_PHY_ULPI_EXTERNAL_VBUS 1
+#define dwc_param_phy_ulpi_ext_vbus_default DWC_PHY_ULPI_INTERNAL_VBUS
+
+ /*
+ * Specifies whether to use the I2Cinterface for full speed PHY. This
+ * parameter is only applicable if PHY_TYPE is FS.
+ * 0 - No (default)
+ * 1 - Yes
+ */
+ int i2c_enable;
+#define dwc_param_i2c_enable_default 0
+
+ int ulpi_fs_ls;
+#define dwc_param_ulpi_fs_ls_default 0
+
+ int ts_dline;
+#define dwc_param_ts_dline_default 0
+
+ /*
+ * Specifies whether dedicated transmit FIFOs are enabled for non
+ * periodic IN endpoints in device mode
+ * 0 - No
+ * 1 - Yes
+ */
+ int en_multiple_tx_fifo;
+#define dwc_param_en_multiple_tx_fifo_default 1
+
+ /*
+ * Number of 4-byte words in each of the Tx FIFOs in device
+ * mode when dynamic FIFO sizing is enabled. 4 to 768 (default 256)
+ */
+ u32 dev_tx_fifo_size[MAX_TX_FIFOS];
+ u32 fifo_number;
+#define dwc_param_dev_tx_fifo_size_default 256
+
+ /*
+ * Thresholding enable flag
+ * bit 0 - enable non-ISO Tx thresholding
+ * bit 1 - enable ISO Tx thresholding
+ * bit 2 - enable Rx thresholding
+ */
+ u32 thr_ctl;
+#define dwc_param_thr_ctl_default 0
+
+ /* Thresholding length for Tx FIFOs in 32 bit DWORDs */
+ u32 tx_thr_length;
+#define dwc_param_tx_thr_length_default 64
+
+ /* Thresholding length for Rx FIFOs in 32 bit DWORDs */
+ u32 rx_thr_length;
+#define dwc_param_rx_thr_length_default 64
+
+};
+
+
+/**
+ * struct dwc_otg_plat_data - device.platform_data for dwc otg driver.
+ */
+struct dwc_otg_plat_data {
+ int (*phy_init)(void);
+ int (*param_init)(struct core_params *);
+};
+
+#endif /* __LINUX_DWC_OTG_H */
--
1.7.2.2
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