[mirror_ubuntu-artful-kernel.git] / drivers / pci / host / pcie-iproc-bcma.c

/*
 * Copyright (C) 2015 Broadcom Corporation
 * Copyright (C) 2015 Hauke Mehrtens <hauke@hauke-m.de>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation version 2.
 *
 * This program is distributed "as is" WITHOUT ANY WARRANTY of any
 * kind, whether express or implied; without even the implied warranty
 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/phy/phy.h>
#include <linux/bcma/bcma.h>
#include <linux/ioport.h>

#include "pcie-iproc.h"


/* NS: CLASS field is R/O, and set to wrong 0x200 value */
static void bcma_pcie2_fixup_class(struct pci_dev *dev)
{
	dev->class = PCI_CLASS_BRIDGE_PCI << 8;
}
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_BROADCOM, 0x8011, bcma_pcie2_fixup_class);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_BROADCOM, 0x8012, bcma_pcie2_fixup_class);

static int iproc_pcie_bcma_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
	struct pci_sys_data *sys = dev->sysdata;
	struct iproc_pcie *pcie = sys->private_data;
	struct bcma_device *bdev = container_of(pcie->dev, struct bcma_device, dev);

	return bcma_core_irq(bdev, 5);
}

static int iproc_pcie_bcma_probe(struct bcma_device *bdev)
{
	struct device *dev = &bdev->dev;
	struct iproc_pcie *pcie;
	LIST_HEAD(resources);
	int ret;

	pcie = devm_kzalloc(dev, sizeof(*pcie), GFP_KERNEL);
	if (!pcie)
		return -ENOMEM;

	pcie->dev = dev;

	pcie->type = IPROC_PCIE_PAXB_BCMA;
	pcie->base = bdev->io_addr;
	if (!pcie->base) {
		dev_err(dev, "no controller registers\n");
		return -ENOMEM;
	}

	pcie->base_addr = bdev->addr;

	pcie->mem.start = bdev->addr_s[0];
	pcie->mem.end = bdev->addr_s[0] + SZ_128M - 1;
	pcie->mem.name = "PCIe MEM space";
	pcie->mem.flags = IORESOURCE_MEM;
	pci_add_resource(&resources, &pcie->mem);

	pcie->map_irq = iproc_pcie_bcma_map_irq;

	ret = iproc_pcie_setup(pcie, &resources);
	if (ret) {
		dev_err(dev, "PCIe controller setup failed\n");
		pci_free_resource_list(&resources);
		return ret;
	}

	bcma_set_drvdata(bdev, pcie);
	return 0;
}

static void iproc_pcie_bcma_remove(struct bcma_device *bdev)
{
	struct iproc_pcie *pcie = bcma_get_drvdata(bdev);

	iproc_pcie_remove(pcie);
}

static const struct bcma_device_id iproc_pcie_bcma_table[] = {
	BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_NS_PCIEG2, BCMA_ANY_REV, BCMA_ANY_CLASS),
	{},
};
MODULE_DEVICE_TABLE(bcma, iproc_pcie_bcma_table);

static struct bcma_driver iproc_pcie_bcma_driver = {
	.name		= KBUILD_MODNAME,
	.id_table	= iproc_pcie_bcma_table,
	.probe		= iproc_pcie_bcma_probe,
	.remove		= iproc_pcie_bcma_remove,
};

static int __init iproc_pcie_bcma_init(void)
{
	return bcma_driver_register(&iproc_pcie_bcma_driver);
}
module_init(iproc_pcie_bcma_init);

static void __exit iproc_pcie_bcma_exit(void)
{
	bcma_driver_unregister(&iproc_pcie_bcma_driver);
}
module_exit(iproc_pcie_bcma_exit);

MODULE_AUTHOR("Hauke Mehrtens");
MODULE_DESCRIPTION("Broadcom iProc PCIe BCMA driver");
MODULE_LICENSE("GPL v2");
Commit	Line	Data
4785ffbd HM	1	/*
	2	* Copyright (C) 2015 Broadcom Corporation
	3	* Copyright (C) 2015 Hauke Mehrtens <hauke@hauke-m.de>
	4	*
	5	* This program is free software; you can redistribute it and/or
	6	* modify it under the terms of the GNU General Public License as
	7	* published by the Free Software Foundation version 2.
	8	*
	9	* This program is distributed "as is" WITHOUT ANY WARRANTY of any
	10	* kind, whether express or implied; without even the implied warranty
	11	* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	12	* GNU General Public License for more details.
	13	*/
	14
	15	#include <linux/kernel.h>
	16	#include <linux/pci.h>
	17	#include <linux/module.h>
	18	#include <linux/slab.h>
	19	#include <linux/phy/phy.h>
	20	#include <linux/bcma/bcma.h>
	21	#include <linux/ioport.h>
	22
	23	#include "pcie-iproc.h"
	24
	25
	26	/* NS: CLASS field is R/O, and set to wrong 0x200 value */
	27	static void bcma_pcie2_fixup_class(struct pci_dev *dev)
	28	{
	29	dev->class = PCI_CLASS_BRIDGE_PCI << 8;
	30	}
	31	DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_BROADCOM, 0x8011, bcma_pcie2_fixup_class);
	32	DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_BROADCOM, 0x8012, bcma_pcie2_fixup_class);
	33
	34	static int iproc_pcie_bcma_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
	35	{
	36	struct pci_sys_data *sys = dev->sysdata;
	37	struct iproc_pcie *pcie = sys->private_data;
	38	struct bcma_device *bdev = container_of(pcie->dev, struct bcma_device, dev);
	39
	40	return bcma_core_irq(bdev, 5);
	41	}
	42
	43	static int iproc_pcie_bcma_probe(struct bcma_device *bdev)
	44	{
786aeccb	45	struct device *dev = &bdev->dev;
4785ffbd	46	struct iproc_pcie *pcie;
6e347b5e	47	LIST_HEAD(resources);
4785ffbd HM	48	int ret;
4785ffbd HM	49
786aeccb	50	pcie = devm_kzalloc(dev, sizeof(*pcie), GFP_KERNEL);
4785ffbd HM	51	if (!pcie)
	52	return -ENOMEM;
	53
786aeccb	54	pcie->dev = dev;
4785ffbd	55
404349c5	56	pcie->type = IPROC_PCIE_PAXB_BCMA;
4785ffbd	57	pcie->base = bdev->io_addr;
f66e5b29 BH	58	if (!pcie->base) {
	59	dev_err(dev, "no controller registers\n");
	60	return -ENOMEM;
	61	}
	62
3bc2b234	63	pcie->base_addr = bdev->addr;
4785ffbd	64
6e347b5e BH	65	pcie->mem.start = bdev->addr_s[0];
	66	pcie->mem.end = bdev->addr_s[0] + SZ_128M - 1;
	67	pcie->mem.name = "PCIe MEM space";
	68	pcie->mem.flags = IORESOURCE_MEM;
	69	pci_add_resource(&resources, &pcie->mem);
4785ffbd	70
4785ffbd HM	71	pcie->map_irq = iproc_pcie_bcma_map_irq;
4785ffbd HM	72
6e347b5e BH	73	ret = iproc_pcie_setup(pcie, &resources);
6e347b5e BH	74	if (ret) {
786aeccb	75	dev_err(dev, "PCIe controller setup failed\n");
6e347b5e BH	76	pci_free_resource_list(&resources);
	77	return ret;
	78	}
ef07991a	79
556c7bb7	80	bcma_set_drvdata(bdev, pcie);
6e347b5e	81	return 0;
4785ffbd HM	82	}
	83
	84	static void iproc_pcie_bcma_remove(struct bcma_device *bdev)
	85	{
	86	struct iproc_pcie *pcie = bcma_get_drvdata(bdev);
	87
	88	iproc_pcie_remove(pcie);
	89	}
	90
	91	static const struct bcma_device_id iproc_pcie_bcma_table[] = {
	92	BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_NS_PCIEG2, BCMA_ANY_REV, BCMA_ANY_CLASS),
	93	{},
	94	};
	95	MODULE_DEVICE_TABLE(bcma, iproc_pcie_bcma_table);
	96
	97	static struct bcma_driver iproc_pcie_bcma_driver = {
	98	.name = KBUILD_MODNAME,
	99	.id_table = iproc_pcie_bcma_table,
	100	.probe = iproc_pcie_bcma_probe,
	101	.remove = iproc_pcie_bcma_remove,
	102	};
	103
	104	static int __init iproc_pcie_bcma_init(void)
	105	{
	106	return bcma_driver_register(&iproc_pcie_bcma_driver);
	107	}
	108	module_init(iproc_pcie_bcma_init);
	109
	110	static void __exit iproc_pcie_bcma_exit(void)
	111	{
	112	bcma_driver_unregister(&iproc_pcie_bcma_driver);
	113	}
	114	module_exit(iproc_pcie_bcma_exit);
	115
	116	MODULE_AUTHOR("Hauke Mehrtens");
	117	MODULE_DESCRIPTION("Broadcom iProc PCIe BCMA driver");
	118	MODULE_LICENSE("GPL v2");