// SPDX-License-Identifier: GPL-2.0-only /* * ixp4xx PATA/Compact Flash driver * Copyright (C) 2006-07 Tower Technologies * Author: Alessandro Zummo <[email protected]> * * An ATA driver to handle a Compact Flash connected * to the ixp4xx expansion bus in TrueIDE mode. The CF * must have it chip selects connected to two CS lines * on the ixp4xx. In the irq is not available, you might * want to modify both this driver and libata to run in * polling mode. */ #include <linux/kernel.h> #include <linux/mfd/syscon.h> #include <linux/module.h> #include <linux/libata.h> #include <linux/irq.h> #include <linux/of.h> #include <linux/platform_device.h> #include <linux/regmap.h> #include <scsi/scsi_host.h> #define DRV_NAME … #define DRV_VERSION … struct ixp4xx_pata { … }; #define IXP4XX_EXP_TIMING_STRIDE … /* The timings for the chipselect is in bits 29..16 */ #define IXP4XX_EXP_T1_T5_MASK … #define IXP4XX_EXP_PIO_0_8 … #define IXP4XX_EXP_PIO_1_8 … #define IXP4XX_EXP_PIO_2_8 … #define IXP4XX_EXP_PIO_3_8 … #define IXP4XX_EXP_PIO_4_8 … #define IXP4XX_EXP_PIO_0_16 … #define IXP4XX_EXP_PIO_1_16 … #define IXP4XX_EXP_PIO_2_16 … #define IXP4XX_EXP_PIO_3_16 … #define IXP4XX_EXP_PIO_4_16 … #define IXP4XX_EXP_BW_MASK … #define IXP4XX_EXP_BYTE_RD16 … #define IXP4XX_EXP_BYTE_EN … static void ixp4xx_set_8bit_timing(struct ixp4xx_pata *ixpp, u8 pio_mode) { … } static void ixp4xx_set_16bit_timing(struct ixp4xx_pata *ixpp, u8 pio_mode) { … } /* This sets up the timing on the chipselect CMD accordingly */ static void ixp4xx_set_piomode(struct ata_port *ap, struct ata_device *adev) { … } static unsigned int ixp4xx_mmio_data_xfer(struct ata_queued_cmd *qc, unsigned char *buf, unsigned int buflen, int rw) { … } static const struct scsi_host_template ixp4xx_sht = …; static struct ata_port_operations ixp4xx_port_ops = …; static struct ata_port_info ixp4xx_port_info = …; static void ixp4xx_setup_port(struct ata_port *ap, struct ixp4xx_pata *ixpp, unsigned long raw_cmd, unsigned long raw_ctl) { … } static int ixp4xx_pata_probe(struct platform_device *pdev) { … } static const struct of_device_id ixp4xx_pata_of_match[] = …; static struct platform_driver ixp4xx_pata_platform_driver = …; module_platform_driver(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …; MODULE_VERSION(…); MODULE_ALIAS(…) …;
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