> Dne Saturday 16 of August 2008 11:08:03 Russell King - ARM Linux napsal(a): > > On Wed, Aug 13, 2008 at 10:52:23PM +0200, Marek Vasut wrote: > > > This patch adds palmld ide channel support, same as previous patch, I > > > think this can be merged since it wont break anything. > > > > I think this one also needs review by the Linux ATA folk. Mention to > > them that it's part of a patchset for ARM and that you'd prefer it > > to be merged into the ARM tree. > > > > > +static const char drvname[] = "pata_palmld"; > > > +MODULE_ALIAS("platform: "drvname); > > > > Have you tried building this as a module? Also, IIRC, there isn't > > supposed to be a space after the colon... > > Ok, I fixed the issues and CCed linux-ide and the maintainer. > > Thanks Hi, Im resending this patch since it was totally ignored last time. It still applies correctly. It'd be for the best to push this through arm-kernel tree. Best regards Marek Vasut
From 8881f9cbf66a3050de328f6c020f864ca04c1e9b Mon Sep 17 00:00:00 2001 From: Marek <marek.vasut@xxxxxxxxx> Date: Sat, 16 Aug 2008 16:25:34 +0200 Subject: [PATCH] PalmLD: IDE support Support for Palm LifeDrive's internal harddrive --- drivers/ata/Kconfig | 9 +++ drivers/ata/Makefile | 1 + drivers/ata/pata_palmld.c | 145 +++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 155 insertions(+), 0 deletions(-) create mode 100644 drivers/ata/pata_palmld.c diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig index ae84949..8e43d11 100644 --- a/drivers/ata/Kconfig +++ b/drivers/ata/Kconfig @@ -533,6 +533,15 @@ config PATA_OPTIDMA If unsure, say N. +config PATA_PALMLD + tristate "Palm LifeDrive PATA support" + depends on MACH_PALMLD + help + This option enables support for Palm LifeDrive's internal ATA + port via the new ATA layer. + + If unsure, say N. + config PATA_PCMCIA tristate "PCMCIA PATA support" depends on PCMCIA diff --git a/drivers/ata/Makefile b/drivers/ata/Makefile index 674965f..2b393c9 100644 --- a/drivers/ata/Makefile +++ b/drivers/ata/Makefile @@ -50,6 +50,7 @@ obj-$(CONFIG_PATA_MPC52xx) += pata_mpc52xx.o obj-$(CONFIG_PATA_MARVELL) += pata_marvell.o obj-$(CONFIG_PATA_MPIIX) += pata_mpiix.o obj-$(CONFIG_PATA_OLDPIIX) += pata_oldpiix.o +obj-$(CONFIG_PATA_PALMLD) += pata_palmld.o obj-$(CONFIG_PATA_PCMCIA) += pata_pcmcia.o obj-$(CONFIG_PATA_PDC2027X) += pata_pdc2027x.o obj-$(CONFIG_PATA_PDC_OLD) += pata_pdc202xx_old.o diff --git a/drivers/ata/pata_palmld.c b/drivers/ata/pata_palmld.c new file mode 100644 index 0000000..f0693f8 --- /dev/null +++ b/drivers/ata/pata_palmld.c @@ -0,0 +1,145 @@ +/* + * drivers/ata/pata_palmld.c + * + * Driver for IDE channel in Palm LifeDrive + * + * Based on research of: + * Alex Osborne <ato@xxxxxxxxx> + * + * Rewrite for mainline: + * Marek Vasut <marek.vasut@xxxxxxxxx> + * + * Rewritten version based on pata_ixp4xx_cf.c: + * ixp4xx PATA/Compact Flash driver + * Copyright (C) 2006-07 Tower Technologies + * Author: Alessandro Zummo <a.zummo@xxxxxxxxxxxx> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#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.h> + +#include <scsi/scsi_host.h> +#include <mach/palmld.h> + +#define DRV_NAME "pata_palmld" + +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_xfer_noirq, + .cable_detect = ata_cable_40wire, +}; + +static __devinit int palmld_pata_probe(struct platform_device *pdev) +{ + struct ata_host *host; + struct ata_port *ap; + void __iomem *mem; + int ret; + + /* allocate host */ + host = ata_host_alloc(&pdev->dev, 1); + if (!host) + return -ENOMEM; + + /* remap drive's physical memory address */ + mem = devm_ioremap(&pdev->dev, PALMLD_IDE_PHYS, 0x1000); + if (!mem) + return -ENOMEM; + + /* request and activate power GPIO, IRQ GPIO */ + ret = gpio_request(GPIO_NR_PALMLD_IDE_PWEN, "HDD PWR"); + if (ret) + goto err1; + ret = gpio_direction_output(GPIO_NR_PALMLD_IDE_PWEN, 1); + if (ret) + goto err2; + + ret = gpio_request(GPIO_NR_PALMLD_IDE_IRQ, "HDD IRQ"); + if (ret) + goto err2; + ret = gpio_direction_input(GPIO_NR_PALMLD_IDE_IRQ); + if (ret) + goto err3; + + /* we'd better wait for drive's ready signal here + (if we knew where it will come from) */ + msleep(300); + + /* setup the ata port */ + ap = host->ports[0]; + ap->ops = &palmld_port_ops; + ap->pio_mask = ATA_PIO4; + ap->flags |= ATA_FLAG_MMIO | ATA_FLAG_NO_LEGACY | ATA_FLAG_NO_ATAPI; + + /* 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 */ + return ata_host_activate(host, gpio_to_irq(GPIO_NR_PALMLD_IDE_IRQ), + ata_sff_interrupt, IRQF_TRIGGER_RISING, + &palmld_sht); +err3: + gpio_free(GPIO_NR_PALMLD_IDE_IRQ); +err2: + gpio_free(GPIO_NR_PALMLD_IDE_PWEN); +err1: + return ret; +} + +static __devexit int palmld_pata_remove(struct platform_device *dev) +{ + struct ata_host *host = platform_get_drvdata(dev); + + ata_host_detach(host); + + gpio_free(GPIO_NR_PALMLD_IDE_PWEN); + gpio_free(GPIO_NR_PALMLD_IDE_IRQ); + + return 0; +} + +static struct platform_driver palmld_pata_platform_driver = { + .driver = { + .name = DRV_NAME, + .owner = THIS_MODULE, + }, + .probe = palmld_pata_probe, + .remove = __devexit_p(palmld_pata_remove), +}; + +static int __init palmld_pata_init(void) +{ + return platform_driver_register(&palmld_pata_platform_driver); +} + +static void __exit palmld_pata_exit(void) +{ + platform_driver_unregister(&palmld_pata_platform_driver); +} + +MODULE_AUTHOR("Marek Vasut <marek.vasut@xxxxxxxxx>"); +MODULE_DESCRIPTION("PalmLD PATA driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:" DRV_NAME); + +module_init(palmld_pata_init); +module_exit(palmld_pata_exit); -- 1.5.6