diff options
Diffstat (limited to 'drivers/ata/pata_palmld.c')
-rw-r--r-- | drivers/ata/pata_palmld.c | 137 |
1 files changed, 0 insertions, 137 deletions
diff --git a/drivers/ata/pata_palmld.c b/drivers/ata/pata_palmld.c deleted file mode 100644 index 51caa2a427dd..000000000000 --- a/drivers/ata/pata_palmld.c +++ /dev/null @@ -1,137 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * drivers/ata/pata_palmld.c - * - * Driver for IDE channel in Palm LifeDrive - * - * Based on research of: - * Alex Osborne <ato@meshy.org> - * - * Rewrite for mainline: - * Marek Vasut <marek.vasut@gmail.com> - * - * Rewritten version based on pata_ixp4xx_cf.c: - * ixp4xx PATA/Compact Flash driver - * Copyright (C) 2006-07 Tower Technologies - * Author: Alessandro Zummo <a.zummo@towertech.it> - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/libata.h> -#include <linux/irq.h> -#include <linux/platform_device.h> -#include <linux/delay.h> -#include <linux/gpio/consumer.h> - -#include <scsi/scsi_host.h> - -#define DRV_NAME "pata_palmld" - -struct palmld_pata { - struct ata_host *host; - struct gpio_desc *power; - struct gpio_desc *reset; -}; - -static struct scsi_host_template palmld_sht = { - ATA_PIO_SHT(DRV_NAME), -}; - -static struct ata_port_operations palmld_port_ops = { - .inherits = &ata_sff_port_ops, - .sff_data_xfer = ata_sff_data_xfer32, - .cable_detect = ata_cable_40wire, -}; - -static int palmld_pata_probe(struct platform_device *pdev) -{ - struct palmld_pata *lda; - struct ata_port *ap; - void __iomem *mem; - struct device *dev = &pdev->dev; - int ret; - - lda = devm_kzalloc(dev, sizeof(*lda), GFP_KERNEL); - if (!lda) - return -ENOMEM; - - /* allocate host */ - lda->host = ata_host_alloc(dev, 1); - if (!lda->host) - return -ENOMEM; - - /* remap drive's physical memory address */ - mem = devm_platform_ioremap_resource(pdev, 0); - if (IS_ERR(mem)) - return PTR_ERR(mem); - - /* request and activate power and reset GPIOs */ - lda->power = devm_gpiod_get(dev, "power", GPIOD_OUT_HIGH); - if (IS_ERR(lda->power)) - return PTR_ERR(lda->power); - lda->reset = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH); - if (IS_ERR(lda->reset)) { - gpiod_set_value(lda->power, 0); - return PTR_ERR(lda->reset); - } - - /* Assert reset to reset the drive */ - gpiod_set_value(lda->reset, 1); - msleep(30); - gpiod_set_value(lda->reset, 0); - msleep(30); - - /* setup the ata port */ - ap = lda->host->ports[0]; - ap->ops = &palmld_port_ops; - ap->pio_mask = ATA_PIO4; - ap->flags |= ATA_FLAG_PIO_POLLING; - - /* memory mapping voodoo */ - ap->ioaddr.cmd_addr = mem + 0x10; - ap->ioaddr.altstatus_addr = mem + 0xe; - ap->ioaddr.ctl_addr = mem + 0xe; - - /* start the port */ - ata_sff_std_ports(&ap->ioaddr); - - /* activate host */ - ret = ata_host_activate(lda->host, 0, NULL, IRQF_TRIGGER_RISING, - &palmld_sht); - /* power down on failure */ - if (ret) { - gpiod_set_value(lda->power, 0); - return ret; - } - - platform_set_drvdata(pdev, lda); - return 0; -} - -static int palmld_pata_remove(struct platform_device *pdev) -{ - struct palmld_pata *lda = platform_get_drvdata(pdev); - - ata_platform_remove_one(pdev); - - /* power down the HDD */ - gpiod_set_value(lda->power, 0); - - return 0; -} - -static struct platform_driver palmld_pata_platform_driver = { - .driver = { - .name = DRV_NAME, - }, - .probe = palmld_pata_probe, - .remove = palmld_pata_remove, -}; - -module_platform_driver(palmld_pata_platform_driver); - -MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>"); -MODULE_DESCRIPTION("PalmLD PATA driver"); -MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:" DRV_NAME); |