linux/amba/pl022.h

1 /* SPDX-License-Identifier: GPL-2.0-or-later */
5  * Copyright (C) 2008-2009 ST-Ericsson AB
11  *	linux-2.6.17-rc3-mm1/drivers/spi/pxa2xx_spi.c
31  * enum ssp_interface - interfaces allowed for this SSP Controller
48  * enum ssp_hierarchy - whether SSP is configured as Master or Slave
56  * enum ssp_clock_params - clock parameters, to set SSP clock at a
65  * enum ssp_rx_endian - endianess of Rx FIFO Data
74  * enum ssp_tx_endian - endianess of Tx FIFO Data
82  * enum ssp_data_size - number of bits in one data element
98  * enum ssp_mode - SSP mode of operation (Communication modes)
107  * enum ssp_rx_level_trig - receive FIFO watermark level which triggers
131  * enum SPI Clock Phase - clock phase (Motorola SPI interface only)
141  * enum SPI Clock Polarity - clock polarity (Motorola SPI interface only)
177  * enum ssp_duplex - whether Full/Half Duplex on microwire, only
179  * @SSP_MICROWIRE_CHANNEL_FULL_DUPLEX: SSPTXD becomes bi-directional,
190  * enum ssp_clkdelay - an optional clock delay on the feedback clock
192  * @SSP_FEEDBACK_CLK_DELAY_NONE: no delay, the data coming in from the
195  * a delay of T-dt
196  * @SSP_FEEDBACK_CLK_DELAY_2T: dito with a delay if 2T-dt
197  * @SSP_FEEDBACK_CLK_DELAY_3T: dito with a delay if 3T-dt
198  * @SSP_FEEDBACK_CLK_DELAY_4T: dito with a delay if 4T-dt
199  * @SSP_FEEDBACK_CLK_DELAY_5T: dito with a delay if 5T-dt
200  * @SSP_FEEDBACK_CLK_DELAY_6T: dito with a delay if 6T-dt
201  * @SSP_FEEDBACK_CLK_DELAY_7T: dito with a delay if 7T-dt
225  * struct pl022_ssp_master - device.platform_data for SPI controller devices.
231  * @autosuspend_delay: delay in ms following transfer completion before the
233  *     indicates no delay and the device will be suspended immediately.
248  * struct ssp_config_chip - spi_board_info.controller_data for SPI
261  * @clkdelay: on the PL023 variant, the delay in feeback clock cycles