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Commit 9cd55be4 authored by Olof Johansson's avatar Olof Johansson
Browse files

[POWERPC] pasemi: Move electra-ide to pata_of_platform 



Move electra-ide glue over to the new pata_of_platform framework, and
add the quirks needed to that driver.

Signed-off-by: default avatarOlof Johansson <olof@lixom.net>
parent 61f71621

arch/powerpc/configs/pasemi_defconfig

+2 −2
Original line number Diff line number Diff line 
#

# Automatically generated make config: don't edit

# Linux kernel version: 2.6.24-rc6

# Fri Dec 28 11:01:53 2007

# Tue Jan 15 10:26:10 2008

#

CONFIG_PPC64=y
@@ -152,7 +152,6 @@ CONFIG_PPC_PASEMI=y 
CONFIG_PPC_PASEMI_IOMMU=y

# CONFIG_PPC_PASEMI_IOMMU_DMA_FORCE is not set

CONFIG_PPC_PASEMI_MDIO=y

CONFIG_ELECTRA_IDE=y

# CONFIG_PPC_CELLEB is not set

# CONFIG_PPC_PS3 is not set

# CONFIG_PPC_CELL is not set
@@ -663,6 +662,7 @@ CONFIG_PATA_PCMCIA=y 
# CONFIG_PATA_VIA is not set

# CONFIG_PATA_WINBOND is not set

CONFIG_PATA_PLATFORM=y

CONFIG_PATA_OF_PLATFORM=y

CONFIG_MD=y

CONFIG_BLK_DEV_MD=y

CONFIG_MD_LINEAR=y

arch/powerpc/platforms/pasemi/Kconfig

+0 −9
Original line number Diff line number Diff line
@@ -37,13 +37,4 @@ config PPC_PASEMI_MDIO 
	help

	  Driver for MDIO via GPIO on PWRficient platforms



config ELECTRA_IDE

      tristate "Electra IDE driver"

      default y

      depends on PPC_PASEMI && ATA

      select PATA_PLATFORM

      help

	This includes driver support for the Electra on-board IDE

	interface.



endmenu

arch/powerpc/platforms/pasemi/Makefile

+0 −1
Original line number Diff line number Diff line 
obj-y	+= setup.o pci.o time.o idle.o powersave.o iommu.o

obj-$(CONFIG_PPC_PASEMI_MDIO)	+= gpio_mdio.o

obj-$(CONFIG_ELECTRA_IDE) += electra_ide.o

obj-$(CONFIG_PPC_PASEMI_CPUFREQ) += cpufreq.o

arch/powerpc/platforms/pasemi/electra_ide.c

deleted100644 → 0
+0 −96
Original line number Diff line number Diff line 
/*

 * Copyright (C) 2007 PA Semi, Inc

 *

 * Maintained by: Olof Johansson <olof@lixom.net>

 *

 * 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.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA

 */



#include <linux/platform_device.h>



#include <asm/prom.h>

#include <asm/system.h>



/* The electra IDE interface is incredibly simple: Just a device on the localbus

 * with interrupts hooked up to one of the GPIOs. The device tree contains the

 * address window and interrupt mappings already, and the pata_platform driver handles

 * the rest. We just need to hook the two up.

 */



#define MAX_IFS	4	/* really, we have only one */



static struct platform_device *pdevs[MAX_IFS];



static int __devinit electra_ide_init(void)

{

	struct device_node *np;

	struct resource r[3];

	int ret = 0;

	int i;



	np = of_find_compatible_node(NULL, "ide", "electra-ide");

	i = 0;



	while (np && i < MAX_IFS) {

		memset(r, 0, sizeof(r));



		/* pata_platform wants two address ranges: one for the base registers,

		 * another for the control (altstatus). It's located at offset 0x3f6 in

		 * the window, but the device tree only has one large register window

		 * that covers both ranges. So we need to split it up by hand here:

		 */



		ret = of_address_to_resource(np, 0, &r[0]);

		if (ret)

			goto out;

		ret = of_address_to_resource(np, 0, &r[1]);

		if (ret)

			goto out;



		r[1].start += 0x3f6;

		r[0].end = r[1].start-1;



		r[2].start = irq_of_parse_and_map(np, 0);

		r[2].end = irq_of_parse_and_map(np, 0);

		r[2].flags = IORESOURCE_IRQ;



		pr_debug("registering platform device at 0x%lx/0x%lx, irq is %ld\n",

			 r[0].start, r[1].start, r[2].start);

		pdevs[i] = platform_device_register_simple("pata_platform", i, r, 3);

		if (IS_ERR(pdevs[i])) {

			ret = PTR_ERR(pdevs[i]);

			pdevs[i] = NULL;

			goto out;

		}

		np = of_find_compatible_node(np, "ide", "electra-ide");

	}

out:

	return ret;

}

module_init(electra_ide_init);



static void __devexit electra_ide_exit(void)

{

	int i;



	for (i = 0; i < MAX_IFS; i++)

		if (pdevs[i])

			platform_device_unregister(pdevs[i]);

}

module_exit(electra_ide_exit);





MODULE_LICENSE("GPL");

MODULE_AUTHOR ("Olof Johansson <olof@lixom.net>");

MODULE_DESCRIPTION("PA Semi Electra IDE driver");

drivers/ata/pata_of_platform.c

+15 −5
Original line number Diff line number Diff line
@@ -34,12 +34,21 @@ static int __devinit pata_of_platform_probe(struct of_device *ofdev, 
		return -EINVAL;

	}



	if (of_device_is_compatible(dn, "electra-ide")) {

		/* Altstatus is really at offset 0x3f6 from the primary window

		 * on electra-ide. Adjust ctl_res and io_res accordingly.

		 */

		ctl_res = io_res;

		ctl_res.start = ctl_res.start+0x3f6;

		io_res.end = ctl_res.start-1;

	} else {

		ret = of_address_to_resource(dn, 1, &ctl_res);

		if (ret) {

			dev_err(&ofdev->dev, "can't get CTL address from "

				"device tree\n");

			return -EINVAL;

		}

	}



	ret = of_irq_to_resource(dn, 0, &irq_res);

	if (ret == NO_IRQ)
@@ -76,6 +85,7 @@ static int __devexit pata_of_platform_remove(struct of_device *ofdev) 


static struct of_device_id pata_of_platform_match[] = {

	{ .compatible = "ata-generic", },

	{ .compatible = "electra-ide", },

	{},

};

MODULE_DEVICE_TABLE(of, pata_of_platform_match);