cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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spi-s3c64xx.h (1548B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2
      3/*
      4 * Copyright (C) 2009 Samsung Electronics Ltd.
      5 *	Jaswinder Singh <jassi.brar@samsung.com>
      6 */
      7
      8#ifndef __SPI_S3C64XX_H
      9#define __SPI_S3C64XX_H
     10
     11#include <linux/dmaengine.h>
     12
     13struct platform_device;
     14
     15/**
     16 * struct s3c64xx_spi_csinfo - ChipSelect description
     17 * @fb_delay: Slave specific feedback delay.
     18 *            Refer to FB_CLK_SEL register definition in SPI chapter.
     19 *
     20 * This is per SPI-Slave Chipselect information.
     21 * Allocate and initialize one in machine init code and make the
     22 * spi_board_info.controller_data point to it.
     23 */
     24struct s3c64xx_spi_csinfo {
     25	u8 fb_delay;
     26};
     27
     28/**
     29 * struct s3c64xx_spi_info - SPI Controller defining structure
     30 * @src_clk_nr: Clock source index for the CLK_CFG[SPI_CLKSEL] field.
     31 * @num_cs: Number of CS this controller emulates.
     32 * @cfg_gpio: Configure pins for this SPI controller.
     33 */
     34struct s3c64xx_spi_info {
     35	int src_clk_nr;
     36	int num_cs;
     37	bool no_cs;
     38	int (*cfg_gpio)(void);
     39};
     40
     41/**
     42 * s3c64xx_spi_set_platdata - SPI Controller configure callback by the board
     43 *				initialization code.
     44 * @src_clk_nr: Clock the SPI controller is to use to generate SPI clocks.
     45 * @num_cs: Number of elements in the 'cs' array.
     46 *
     47 * Call this from machine init code for each SPI Controller that
     48 * has some chips attached to it.
     49 */
     50extern void s3c64xx_spi0_set_platdata(int src_clk_nr, int num_cs);
     51
     52/* defined by architecture to configure gpio */
     53extern int s3c64xx_spi0_cfg_gpio(void);
     54
     55extern struct s3c64xx_spi_info s3c64xx_spi0_pdata;
     56#endif /*__SPI_S3C64XX_H */