[mirror_ubuntu-bionic-kernel.git] / arch / sparc / kernel / pci_fire.c

// SPDX-License-Identifier: GPL-2.0
/* pci_fire.c: Sun4u platform PCI-E controller support.
 *
 * Copyright (C) 2007 David S. Miller (davem@davemloft.net)
 */
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/msi.h>
#include <linux/export.h>
#include <linux/irq.h>
#include <linux/of_device.h>

#include <asm/prom.h>
#include <asm/irq.h>
#include <asm/upa.h>

#include "pci_impl.h"

#define DRIVER_NAME	"fire"
#define PFX		DRIVER_NAME ": "

#define FIRE_IOMMU_CONTROL	0x40000UL
#define FIRE_IOMMU_TSBBASE	0x40008UL
#define FIRE_IOMMU_FLUSH	0x40100UL
#define FIRE_IOMMU_FLUSHINV	0x40108UL

static int pci_fire_pbm_iommu_init(struct pci_pbm_info *pbm)
{
	struct iommu *iommu = pbm->iommu;
	u32 vdma[2], dma_mask;
	u64 control;
	int tsbsize, err;

	/* No virtual-dma property on these guys, use largest size.  */
	vdma[0] = 0xc0000000; /* base */
	vdma[1] = 0x40000000; /* size */
	dma_mask = 0xffffffff;
	tsbsize = 128;

	/* Register addresses. */
	iommu->iommu_control  = pbm->pbm_regs + FIRE_IOMMU_CONTROL;
	iommu->iommu_tsbbase  = pbm->pbm_regs + FIRE_IOMMU_TSBBASE;
	iommu->iommu_flush    = pbm->pbm_regs + FIRE_IOMMU_FLUSH;
	iommu->iommu_flushinv = pbm->pbm_regs + FIRE_IOMMU_FLUSHINV;

	/* We use the main control/status register of FIRE as the write
	 * completion register.
	 */
	iommu->write_complete_reg = pbm->controller_regs + 0x410000UL;

	/*
	 * Invalidate TLB Entries.
	 */
	upa_writeq(~(u64)0, iommu->iommu_flushinv);

	err = iommu_table_init(iommu, tsbsize * 8 * 1024, vdma[0], dma_mask,
			       pbm->numa_node);
	if (err)
		return err;

	upa_writeq(__pa(iommu->page_table) | 0x7UL, iommu->iommu_tsbbase);

	control = upa_readq(iommu->iommu_control);
	control |= (0x00000400 /* TSB cache snoop enable */	|
		    0x00000300 /* Cache mode */			|
		    0x00000002 /* Bypass enable */		|
		    0x00000001 /* Translation enable */);
	upa_writeq(control, iommu->iommu_control);

	return 0;
}

#ifdef CONFIG_PCI_MSI
struct pci_msiq_entry {
	u64		word0;
#define MSIQ_WORD0_RESV			0x8000000000000000UL
#define MSIQ_WORD0_FMT_TYPE		0x7f00000000000000UL
#define MSIQ_WORD0_FMT_TYPE_SHIFT	56
#define MSIQ_WORD0_LEN			0x00ffc00000000000UL
#define MSIQ_WORD0_LEN_SHIFT		46
#define MSIQ_WORD0_ADDR0		0x00003fff00000000UL
#define MSIQ_WORD0_ADDR0_SHIFT		32
#define MSIQ_WORD0_RID			0x00000000ffff0000UL
#define MSIQ_WORD0_RID_SHIFT		16
#define MSIQ_WORD0_DATA0		0x000000000000ffffUL
#define MSIQ_WORD0_DATA0_SHIFT		0

#define MSIQ_TYPE_MSG			0x6
#define MSIQ_TYPE_MSI32			0xb
#define MSIQ_TYPE_MSI64			0xf

	u64		word1;
#define MSIQ_WORD1_ADDR1		0xffffffffffff0000UL
#define MSIQ_WORD1_ADDR1_SHIFT		16
#define MSIQ_WORD1_DATA1		0x000000000000ffffUL
#define MSIQ_WORD1_DATA1_SHIFT		0

	u64		resv[6];
};

/* All MSI registers are offset from pbm->pbm_regs */
#define EVENT_QUEUE_BASE_ADDR_REG	0x010000UL
#define  EVENT_QUEUE_BASE_ADDR_ALL_ONES	0xfffc000000000000UL

#define EVENT_QUEUE_CONTROL_SET(EQ)	(0x011000UL + (EQ) * 0x8UL)
#define  EVENT_QUEUE_CONTROL_SET_OFLOW	0x0200000000000000UL
#define  EVENT_QUEUE_CONTROL_SET_EN	0x0000100000000000UL

#define EVENT_QUEUE_CONTROL_CLEAR(EQ)	(0x011200UL + (EQ) * 0x8UL)
#define  EVENT_QUEUE_CONTROL_CLEAR_OF	0x0200000000000000UL
#define  EVENT_QUEUE_CONTROL_CLEAR_E2I	0x0000800000000000UL
#define  EVENT_QUEUE_CONTROL_CLEAR_DIS	0x0000100000000000UL

#define EVENT_QUEUE_STATE(EQ)		(0x011400UL + (EQ) * 0x8UL)
#define  EVENT_QUEUE_STATE_MASK		0x0000000000000007UL
#define  EVENT_QUEUE_STATE_IDLE		0x0000000000000001UL
#define  EVENT_QUEUE_STATE_ACTIVE	0x0000000000000002UL
#define  EVENT_QUEUE_STATE_ERROR	0x0000000000000004UL

#define EVENT_QUEUE_TAIL(EQ)		(0x011600UL + (EQ) * 0x8UL)
#define  EVENT_QUEUE_TAIL_OFLOW		0x0200000000000000UL
#define  EVENT_QUEUE_TAIL_VAL		0x000000000000007fUL

#define EVENT_QUEUE_HEAD(EQ)		(0x011800UL + (EQ) * 0x8UL)
#define  EVENT_QUEUE_HEAD_VAL		0x000000000000007fUL

#define MSI_MAP(MSI)			(0x020000UL + (MSI) * 0x8UL)
#define  MSI_MAP_VALID			0x8000000000000000UL
#define  MSI_MAP_EQWR_N			0x4000000000000000UL
#define  MSI_MAP_EQNUM			0x000000000000003fUL

#define MSI_CLEAR(MSI)			(0x028000UL + (MSI) * 0x8UL)
#define  MSI_CLEAR_EQWR_N		0x4000000000000000UL

#define IMONDO_DATA0			0x02C000UL
#define  IMONDO_DATA0_DATA		0xffffffffffffffc0UL

#define IMONDO_DATA1			0x02C008UL
#define  IMONDO_DATA1_DATA		0xffffffffffffffffUL

#define MSI_32BIT_ADDR			0x034000UL
#define  MSI_32BIT_ADDR_VAL		0x00000000ffff0000UL

#define MSI_64BIT_ADDR			0x034008UL
#define  MSI_64BIT_ADDR_VAL		0xffffffffffff0000UL

static int pci_fire_get_head(struct pci_pbm_info *pbm, unsigned long msiqid,
			     unsigned long *head)
{
	*head = upa_readq(pbm->pbm_regs + EVENT_QUEUE_HEAD(msiqid));
	return 0;
}

static int pci_fire_dequeue_msi(struct pci_pbm_info *pbm, unsigned long msiqid,
				unsigned long *head, unsigned long *msi)
{
	unsigned long type_fmt, type, msi_num;
	struct pci_msiq_entry *base, *ep;

	base = (pbm->msi_queues + ((msiqid - pbm->msiq_first) * 8192));
	ep = &base[*head];

	if ((ep->word0 & MSIQ_WORD0_FMT_TYPE) == 0)
		return 0;

	type_fmt = ((ep->word0 & MSIQ_WORD0_FMT_TYPE) >>
		    MSIQ_WORD0_FMT_TYPE_SHIFT);
	type = (type_fmt >> 3);
	if (unlikely(type != MSIQ_TYPE_MSI32 &&
		     type != MSIQ_TYPE_MSI64))
		return -EINVAL;

	*msi = msi_num = ((ep->word0 & MSIQ_WORD0_DATA0) >>
			  MSIQ_WORD0_DATA0_SHIFT);

	upa_writeq(MSI_CLEAR_EQWR_N, pbm->pbm_regs + MSI_CLEAR(msi_num));

	/* Clear the entry.  */
	ep->word0 &= ~MSIQ_WORD0_FMT_TYPE;

	/* Go to next entry in ring.  */
	(*head)++;
	if (*head >= pbm->msiq_ent_count)
		*head = 0;

	return 1;
}

static int pci_fire_set_head(struct pci_pbm_info *pbm, unsigned long msiqid,
			     unsigned long head)
{
	upa_writeq(head, pbm->pbm_regs + EVENT_QUEUE_HEAD(msiqid));
	return 0;
}

static int pci_fire_msi_setup(struct pci_pbm_info *pbm, unsigned long msiqid,
			      unsigned long msi, int is_msi64)
{
	u64 val;

	val = upa_readq(pbm->pbm_regs + MSI_MAP(msi));
	val &= ~(MSI_MAP_EQNUM);
	val |= msiqid;
	upa_writeq(val, pbm->pbm_regs + MSI_MAP(msi));

	upa_writeq(MSI_CLEAR_EQWR_N, pbm->pbm_regs + MSI_CLEAR(msi));

	val = upa_readq(pbm->pbm_regs + MSI_MAP(msi));
	val |= MSI_MAP_VALID;
	upa_writeq(val, pbm->pbm_regs + MSI_MAP(msi));

	return 0;
}

static int pci_fire_msi_teardown(struct pci_pbm_info *pbm, unsigned long msi)
{
	u64 val;

	val = upa_readq(pbm->pbm_regs + MSI_MAP(msi));

	val &= ~MSI_MAP_VALID;

	upa_writeq(val, pbm->pbm_regs + MSI_MAP(msi));

	return 0;
}

static int pci_fire_msiq_alloc(struct pci_pbm_info *pbm)
{
	unsigned long pages, order, i;

	order = get_order(512 * 1024);
	pages = __get_free_pages(GFP_KERNEL | __GFP_COMP, order);
	if (pages == 0UL) {
		printk(KERN_ERR "MSI: Cannot allocate MSI queues (o=%lu).\n",
		       order);
		return -ENOMEM;
	}
	memset((char *)pages, 0, PAGE_SIZE << order);
	pbm->msi_queues = (void *) pages;

	upa_writeq((EVENT_QUEUE_BASE_ADDR_ALL_ONES |
		    __pa(pbm->msi_queues)),
		   pbm->pbm_regs + EVENT_QUEUE_BASE_ADDR_REG);

	upa_writeq(pbm->portid << 6, pbm->pbm_regs + IMONDO_DATA0);
	upa_writeq(0, pbm->pbm_regs + IMONDO_DATA1);

	upa_writeq(pbm->msi32_start, pbm->pbm_regs + MSI_32BIT_ADDR);
	upa_writeq(pbm->msi64_start, pbm->pbm_regs + MSI_64BIT_ADDR);

	for (i = 0; i < pbm->msiq_num; i++) {
		upa_writeq(0, pbm->pbm_regs + EVENT_QUEUE_HEAD(i));
		upa_writeq(0, pbm->pbm_regs + EVENT_QUEUE_TAIL(i));
	}

	return 0;
}

static void pci_fire_msiq_free(struct pci_pbm_info *pbm)
{
	unsigned long pages, order;

	order = get_order(512 * 1024);
	pages = (unsigned long) pbm->msi_queues;

	free_pages(pages, order);

	pbm->msi_queues = NULL;
}

static int pci_fire_msiq_build_irq(struct pci_pbm_info *pbm,
				   unsigned long msiqid,
				   unsigned long devino)
{
	unsigned long cregs = (unsigned long) pbm->pbm_regs;
	unsigned long imap_reg, iclr_reg, int_ctrlr;
	unsigned int irq;
	int fixup;
	u64 val;

	imap_reg = cregs + (0x001000UL + (devino * 0x08UL));
	iclr_reg = cregs + (0x001400UL + (devino * 0x08UL));

	/* XXX iterate amongst the 4 IRQ controllers XXX */
	int_ctrlr = (1UL << 6);

	val = upa_readq(imap_reg);
	val |= (1UL << 63) | int_ctrlr;
	upa_writeq(val, imap_reg);

	fixup = ((pbm->portid << 6) | devino) - int_ctrlr;

	irq = build_irq(fixup, iclr_reg, imap_reg);
	if (!irq)
		return -ENOMEM;

	upa_writeq(EVENT_QUEUE_CONTROL_SET_EN,
		   pbm->pbm_regs + EVENT_QUEUE_CONTROL_SET(msiqid));

	return irq;
}

static const struct sparc64_msiq_ops pci_fire_msiq_ops = {
	.get_head	=	pci_fire_get_head,
	.dequeue_msi	=	pci_fire_dequeue_msi,
	.set_head	=	pci_fire_set_head,
	.msi_setup	=	pci_fire_msi_setup,
	.msi_teardown	=	pci_fire_msi_teardown,
	.msiq_alloc	=	pci_fire_msiq_alloc,
	.msiq_free	=	pci_fire_msiq_free,
	.msiq_build_irq	=	pci_fire_msiq_build_irq,
};

static void pci_fire_msi_init(struct pci_pbm_info *pbm)
{
	sparc64_pbm_msi_init(pbm, &pci_fire_msiq_ops);
}
#else /* CONFIG_PCI_MSI */
static void pci_fire_msi_init(struct pci_pbm_info *pbm)
{
}
#endif /* !(CONFIG_PCI_MSI) */

/* Based at pbm->controller_regs */
#define FIRE_PARITY_CONTROL	0x470010UL
#define  FIRE_PARITY_ENAB	0x8000000000000000UL
#define FIRE_FATAL_RESET_CTL	0x471028UL
#define  FIRE_FATAL_RESET_SPARE	0x0000000004000000UL
#define  FIRE_FATAL_RESET_MB	0x0000000002000000UL
#define  FIRE_FATAL_RESET_CPE	0x0000000000008000UL
#define  FIRE_FATAL_RESET_APE	0x0000000000004000UL
#define  FIRE_FATAL_RESET_PIO	0x0000000000000040UL
#define  FIRE_FATAL_RESET_JW	0x0000000000000004UL
#define  FIRE_FATAL_RESET_JI	0x0000000000000002UL
#define  FIRE_FATAL_RESET_JR	0x0000000000000001UL
#define FIRE_CORE_INTR_ENABLE	0x471800UL

/* Based at pbm->pbm_regs */
#define FIRE_TLU_CTRL		0x80000UL
#define  FIRE_TLU_CTRL_TIM	0x00000000da000000UL
#define  FIRE_TLU_CTRL_QDET	0x0000000000000100UL
#define  FIRE_TLU_CTRL_CFG	0x0000000000000001UL
#define FIRE_TLU_DEV_CTRL	0x90008UL
#define FIRE_TLU_LINK_CTRL	0x90020UL
#define FIRE_TLU_LINK_CTRL_CLK	0x0000000000000040UL
#define FIRE_LPU_RESET		0xe2008UL
#define FIRE_LPU_LLCFG		0xe2200UL
#define  FIRE_LPU_LLCFG_VC0	0x0000000000000100UL
#define FIRE_LPU_FCTRL_UCTRL	0xe2240UL
#define  FIRE_LPU_FCTRL_UCTRL_N	0x0000000000000002UL
#define  FIRE_LPU_FCTRL_UCTRL_P	0x0000000000000001UL
#define FIRE_LPU_TXL_FIFOP	0xe2430UL
#define FIRE_LPU_LTSSM_CFG2	0xe2788UL
#define FIRE_LPU_LTSSM_CFG3	0xe2790UL
#define FIRE_LPU_LTSSM_CFG4	0xe2798UL
#define FIRE_LPU_LTSSM_CFG5	0xe27a0UL
#define FIRE_DMC_IENAB		0x31800UL
#define FIRE_DMC_DBG_SEL_A	0x53000UL
#define FIRE_DMC_DBG_SEL_B	0x53008UL
#define FIRE_PEC_IENAB		0x51800UL

static void pci_fire_hw_init(struct pci_pbm_info *pbm)
{
	u64 val;

	upa_writeq(FIRE_PARITY_ENAB,
		   pbm->controller_regs + FIRE_PARITY_CONTROL);

	upa_writeq((FIRE_FATAL_RESET_SPARE |
		    FIRE_FATAL_RESET_MB |
		    FIRE_FATAL_RESET_CPE |
		    FIRE_FATAL_RESET_APE |
		    FIRE_FATAL_RESET_PIO |
		    FIRE_FATAL_RESET_JW |
		    FIRE_FATAL_RESET_JI |
		    FIRE_FATAL_RESET_JR),
		   pbm->controller_regs + FIRE_FATAL_RESET_CTL);

	upa_writeq(~(u64)0, pbm->controller_regs + FIRE_CORE_INTR_ENABLE);

	val = upa_readq(pbm->pbm_regs + FIRE_TLU_CTRL);
	val |= (FIRE_TLU_CTRL_TIM |
		FIRE_TLU_CTRL_QDET |
		FIRE_TLU_CTRL_CFG);
	upa_writeq(val, pbm->pbm_regs + FIRE_TLU_CTRL);
	upa_writeq(0, pbm->pbm_regs + FIRE_TLU_DEV_CTRL);
	upa_writeq(FIRE_TLU_LINK_CTRL_CLK,
		   pbm->pbm_regs + FIRE_TLU_LINK_CTRL);

	upa_writeq(0, pbm->pbm_regs + FIRE_LPU_RESET);
	upa_writeq(FIRE_LPU_LLCFG_VC0, pbm->pbm_regs + FIRE_LPU_LLCFG);
	upa_writeq((FIRE_LPU_FCTRL_UCTRL_N | FIRE_LPU_FCTRL_UCTRL_P),
		   pbm->pbm_regs + FIRE_LPU_FCTRL_UCTRL);
	upa_writeq(((0xffff << 16) | (0x0000 << 0)),
		   pbm->pbm_regs + FIRE_LPU_TXL_FIFOP);
	upa_writeq(3000000, pbm->pbm_regs + FIRE_LPU_LTSSM_CFG2);
	upa_writeq(500000, pbm->pbm_regs + FIRE_LPU_LTSSM_CFG3);
	upa_writeq((2 << 16) | (140 << 8),
		   pbm->pbm_regs + FIRE_LPU_LTSSM_CFG4);
	upa_writeq(0, pbm->pbm_regs + FIRE_LPU_LTSSM_CFG5);

	upa_writeq(~(u64)0, pbm->pbm_regs + FIRE_DMC_IENAB);
	upa_writeq(0, pbm->pbm_regs + FIRE_DMC_DBG_SEL_A);
	upa_writeq(0, pbm->pbm_regs + FIRE_DMC_DBG_SEL_B);

	upa_writeq(~(u64)0, pbm->pbm_regs + FIRE_PEC_IENAB);
}

static int pci_fire_pbm_init(struct pci_pbm_info *pbm,
			     struct platform_device *op, u32 portid)
{
	const struct linux_prom64_registers *regs;
	struct device_node *dp = op->dev.of_node;
	int err;

	pbm->numa_node = -1;

	pbm->pci_ops = &sun4u_pci_ops;
	pbm->config_space_reg_bits = 12;

	pbm->index = pci_num_pbms++;

	pbm->portid = portid;
	pbm->op = op;
	pbm->name = dp->full_name;

	regs = of_get_property(dp, "reg", NULL);
	pbm->pbm_regs = regs[0].phys_addr;
	pbm->controller_regs = regs[1].phys_addr - 0x410000UL;

	printk("%s: SUN4U PCIE Bus Module\n", pbm->name);

	pci_determine_mem_io_space(pbm);

	pci_get_pbm_props(pbm);

	pci_fire_hw_init(pbm);

	err = pci_fire_pbm_iommu_init(pbm);
	if (err)
		return err;

	pci_fire_msi_init(pbm);

	pbm->pci_bus = pci_scan_one_pbm(pbm, &op->dev);

	/* XXX register error interrupt handlers XXX */

	pbm->next = pci_pbm_root;
	pci_pbm_root = pbm;

	return 0;
}

static int fire_probe(struct platform_device *op)
{
	struct device_node *dp = op->dev.of_node;
	struct pci_pbm_info *pbm;
	struct iommu *iommu;
	u32 portid;
	int err;

	portid = of_getintprop_default(dp, "portid", 0xff);

	err = -ENOMEM;
	pbm = kzalloc(sizeof(*pbm), GFP_KERNEL);
	if (!pbm) {
		printk(KERN_ERR PFX "Cannot allocate pci_pbminfo.\n");
		goto out_err;
	}

	iommu = kzalloc(sizeof(struct iommu), GFP_KERNEL);
	if (!iommu) {
		printk(KERN_ERR PFX "Cannot allocate PBM iommu.\n");
		goto out_free_controller;
	}

	pbm->iommu = iommu;

	err = pci_fire_pbm_init(pbm, op, portid);
	if (err)
		goto out_free_iommu;

	dev_set_drvdata(&op->dev, pbm);

	return 0;

out_free_iommu:
	kfree(pbm->iommu);
			
out_free_controller:
	kfree(pbm);

out_err:
	return err;
}

static const struct of_device_id fire_match[] = {
	{
		.name = "pci",
		.compatible = "pciex108e,80f0",
	},
	{},
};

static struct platform_driver fire_driver = {
	.driver = {
		.name = DRIVER_NAME,
		.of_match_table = fire_match,
	},
	.probe		= fire_probe,
};

static int __init fire_init(void)
{
	return platform_driver_register(&fire_driver);
}

subsys_initcall(fire_init);
Commit	Line	Data
b2441318	1	// SPDX-License-Identifier: GPL-2.0
861fe906 DM	2	/* pci_fire.c: Sun4u platform PCI-E controller support.
	3	*
	4	* Copyright (C) 2007 David S. Miller (davem@davemloft.net)
	5	*/
	6	#include <linux/kernel.h>
	7	#include <linux/pci.h>
	8	#include <linux/slab.h>
	9	#include <linux/init.h>
9bb3c227	10	#include <linux/msi.h>
7b64db60	11	#include <linux/export.h>
9bb3c227	12	#include <linux/irq.h>
c8049966	13	#include <linux/of_device.h>
861fe906	14
861fe906	15	#include <asm/prom.h>
9bb3c227	16	#include <asm/irq.h>
87395fc6	17	#include <asm/upa.h>
861fe906 DM	18
	19	#include "pci_impl.h"
	20
c8049966 DM	21	#define DRIVER_NAME "fire"
	22	#define PFX DRIVER_NAME ": "
	23
861fe906 DM	24	#define FIRE_IOMMU_CONTROL 0x40000UL
	25	#define FIRE_IOMMU_TSBBASE 0x40008UL
	26	#define FIRE_IOMMU_FLUSH 0x40100UL
95d71e66	27	#define FIRE_IOMMU_FLUSHINV 0x40108UL
861fe906	28
ad7ad57c	29	static int pci_fire_pbm_iommu_init(struct pci_pbm_info *pbm)
861fe906 DM	30	{
	31	struct iommu *iommu = pbm->iommu;
	32	u32 vdma[2], dma_mask;
	33	u64 control;
ad7ad57c	34	int tsbsize, err;
861fe906 DM	35
	36	/* No virtual-dma property on these guys, use largest size. */
	37	vdma[0] = 0xc0000000; /* base */
	38	vdma[1] = 0x40000000; /* size */
	39	dma_mask = 0xffffffff;
	40	tsbsize = 128;
	41
	42	/* Register addresses. */
	43	iommu->iommu_control = pbm->pbm_regs + FIRE_IOMMU_CONTROL;
	44	iommu->iommu_tsbbase = pbm->pbm_regs + FIRE_IOMMU_TSBBASE;
	45	iommu->iommu_flush = pbm->pbm_regs + FIRE_IOMMU_FLUSH;
	46	iommu->iommu_flushinv = pbm->pbm_regs + FIRE_IOMMU_FLUSHINV;
	47
	48	/* We use the main control/status register of FIRE as the write
	49	* completion register.
	50	*/
	51	iommu->write_complete_reg = pbm->controller_regs + 0x410000UL;
	52
	53	/*
	54	* Invalidate TLB Entries.
	55	*/
87395fc6	56	upa_writeq(~(u64)0, iommu->iommu_flushinv);
861fe906	57
c1b1a5f1 DM	58	err = iommu_table_init(iommu, tsbsize * 8 * 1024, vdma[0], dma_mask,
c1b1a5f1 DM	59	pbm->numa_node);
ad7ad57c DM	60	if (err)
ad7ad57c DM	61	return err;
861fe906	62
87395fc6	63	upa_writeq(__pa(iommu->page_table) \| 0x7UL, iommu->iommu_tsbbase);
861fe906	64
87395fc6	65	control = upa_readq(iommu->iommu_control);
861fe906 DM	66	control \|= (0x00000400 /* TSB cache snoop enable */ \|
	67	0x00000300 /* Cache mode */ \|
	68	0x00000002 /* Bypass enable */ \|
	69	0x00000001 /* Translation enable */);
87395fc6	70	upa_writeq(control, iommu->iommu_control);
ad7ad57c DM	71
ad7ad57c DM	72	return 0;
861fe906 DM	73	}
861fe906 DM	74
9bb3c227 DM	75	#ifdef CONFIG_PCI_MSI
	76	struct pci_msiq_entry {
	77	u64 word0;
	78	#define MSIQ_WORD0_RESV 0x8000000000000000UL
	79	#define MSIQ_WORD0_FMT_TYPE 0x7f00000000000000UL
	80	#define MSIQ_WORD0_FMT_TYPE_SHIFT 56
	81	#define MSIQ_WORD0_LEN 0x00ffc00000000000UL
	82	#define MSIQ_WORD0_LEN_SHIFT 46
	83	#define MSIQ_WORD0_ADDR0 0x00003fff00000000UL
	84	#define MSIQ_WORD0_ADDR0_SHIFT 32
	85	#define MSIQ_WORD0_RID 0x00000000ffff0000UL
	86	#define MSIQ_WORD0_RID_SHIFT 16
	87	#define MSIQ_WORD0_DATA0 0x000000000000ffffUL
	88	#define MSIQ_WORD0_DATA0_SHIFT 0
	89
	90	#define MSIQ_TYPE_MSG 0x6
	91	#define MSIQ_TYPE_MSI32 0xb
	92	#define MSIQ_TYPE_MSI64 0xf
	93
	94	u64 word1;
	95	#define MSIQ_WORD1_ADDR1 0xffffffffffff0000UL
	96	#define MSIQ_WORD1_ADDR1_SHIFT 16
	97	#define MSIQ_WORD1_DATA1 0x000000000000ffffUL
	98	#define MSIQ_WORD1_DATA1_SHIFT 0
	99
	100	u64 resv[6];
	101	};
	102
	103	/* All MSI registers are offset from pbm->pbm_regs */
	104	#define EVENT_QUEUE_BASE_ADDR_REG 0x010000UL
	105	#define EVENT_QUEUE_BASE_ADDR_ALL_ONES 0xfffc000000000000UL
	106
	107	#define EVENT_QUEUE_CONTROL_SET(EQ) (0x011000UL + (EQ) * 0x8UL)
	108	#define EVENT_QUEUE_CONTROL_SET_OFLOW 0x0200000000000000UL
	109	#define EVENT_QUEUE_CONTROL_SET_EN 0x0000100000000000UL
	110
	111	#define EVENT_QUEUE_CONTROL_CLEAR(EQ) (0x011200UL + (EQ) * 0x8UL)
	112	#define EVENT_QUEUE_CONTROL_CLEAR_OF 0x0200000000000000UL
	113	#define EVENT_QUEUE_CONTROL_CLEAR_E2I 0x0000800000000000UL
	114	#define EVENT_QUEUE_CONTROL_CLEAR_DIS 0x0000100000000000UL
	115
	116	#define EVENT_QUEUE_STATE(EQ) (0x011400UL + (EQ) * 0x8UL)
	117	#define EVENT_QUEUE_STATE_MASK 0x0000000000000007UL
	118	#define EVENT_QUEUE_STATE_IDLE 0x0000000000000001UL
	119	#define EVENT_QUEUE_STATE_ACTIVE 0x0000000000000002UL
	120	#define EVENT_QUEUE_STATE_ERROR 0x0000000000000004UL
	121
	122	#define EVENT_QUEUE_TAIL(EQ) (0x011600UL + (EQ) * 0x8UL)
	123	#define EVENT_QUEUE_TAIL_OFLOW 0x0200000000000000UL
	124	#define EVENT_QUEUE_TAIL_VAL 0x000000000000007fUL
	125
	126	#define EVENT_QUEUE_HEAD(EQ) (0x011800UL + (EQ) * 0x8UL)
	127	#define EVENT_QUEUE_HEAD_VAL 0x000000000000007fUL
	128
	129	#define MSI_MAP(MSI) (0x020000UL + (MSI) * 0x8UL)
	130	#define MSI_MAP_VALID 0x8000000000000000UL
	131	#define MSI_MAP_EQWR_N 0x4000000000000000UL
	132	#define MSI_MAP_EQNUM 0x000000000000003fUL
	133
	134	#define MSI_CLEAR(MSI) (0x028000UL + (MSI) * 0x8UL)
	135	#define MSI_CLEAR_EQWR_N 0x4000000000000000UL
	136
	137	#define IMONDO_DATA0 0x02C000UL
	138	#define IMONDO_DATA0_DATA 0xffffffffffffffc0UL
139
140	#define IMONDO_DATA1 0x02C008UL
141	#define IMONDO_DATA1_DATA 0xffffffffffffffffUL
142
143	#define MSI_32BIT_ADDR 0x034000UL
144	#define MSI_32BIT_ADDR_VAL 0x00000000ffff0000UL
145
146	#define MSI_64BIT_ADDR 0x034008UL
147	#define MSI_64BIT_ADDR_VAL 0xffffffffffff0000UL
148
759f89e0 DM	149	static int pci_fire_get_head(struct pci_pbm_info *pbm, unsigned long msiqid,
	150	unsigned long *head)
	151	{
87395fc6	152	*head = upa_readq(pbm->pbm_regs + EVENT_QUEUE_HEAD(msiqid));
759f89e0 DM	153	return 0;
	154	}
	155
	156	static int pci_fire_dequeue_msi(struct pci_pbm_info *pbm, unsigned long msiqid,
	157	unsigned long head, unsigned long msi)
9bb3c227	158	{
759f89e0	159	unsigned long type_fmt, type, msi_num;
9bb3c227 DM	160	struct pci_msiq_entry base, ep;
9bb3c227 DM	161
759f89e0 DM	162	base = (pbm->msi_queues + ((msiqid - pbm->msiq_first) * 8192));
759f89e0 DM	163	ep = &base[*head];
9bb3c227	164
759f89e0 DM	165	if ((ep->word0 & MSIQ_WORD0_FMT_TYPE) == 0)
759f89e0 DM	166	return 0;
9bb3c227	167
759f89e0 DM	168	type_fmt = ((ep->word0 & MSIQ_WORD0_FMT_TYPE) >>
	169	MSIQ_WORD0_FMT_TYPE_SHIFT);
	170	type = (type_fmt >> 3);
	171	if (unlikely(type != MSIQ_TYPE_MSI32 &&
	172	type != MSIQ_TYPE_MSI64))
	173	return -EINVAL;
9bb3c227	174
759f89e0 DM	175	*msi = msi_num = ((ep->word0 & MSIQ_WORD0_DATA0) >>
759f89e0 DM	176	MSIQ_WORD0_DATA0_SHIFT);
9bb3c227	177
87395fc6	178	upa_writeq(MSI_CLEAR_EQWR_N, pbm->pbm_regs + MSI_CLEAR(msi_num));
759f89e0 DM	179
	180	/* Clear the entry. */
	181	ep->word0 &= ~MSIQ_WORD0_FMT_TYPE;
	182
	183	/* Go to next entry in ring. */
	184	(*head)++;
	185	if (*head >= pbm->msiq_ent_count)
	186	*head = 0;
	187
	188	return 1;
9bb3c227 DM	189	}
9bb3c227 DM	190
759f89e0 DM	191	static int pci_fire_set_head(struct pci_pbm_info *pbm, unsigned long msiqid,
759f89e0 DM	192	unsigned long head)
9bb3c227	193	{
87395fc6	194	upa_writeq(head, pbm->pbm_regs + EVENT_QUEUE_HEAD(msiqid));
759f89e0 DM	195	return 0;
759f89e0 DM	196	}
9bb3c227	197
759f89e0 DM	198	static int pci_fire_msi_setup(struct pci_pbm_info *pbm, unsigned long msiqid,
	199	unsigned long msi, int is_msi64)
	200	{
	201	u64 val;
9bb3c227	202
87395fc6	203	val = upa_readq(pbm->pbm_regs + MSI_MAP(msi));
759f89e0 DM	204	val &= ~(MSI_MAP_EQNUM);
759f89e0 DM	205	val \|= msiqid;
87395fc6	206	upa_writeq(val, pbm->pbm_regs + MSI_MAP(msi));
759f89e0	207
87395fc6	208	upa_writeq(MSI_CLEAR_EQWR_N, pbm->pbm_regs + MSI_CLEAR(msi));
759f89e0	209
87395fc6	210	val = upa_readq(pbm->pbm_regs + MSI_MAP(msi));
759f89e0	211	val \|= MSI_MAP_VALID;
87395fc6	212	upa_writeq(val, pbm->pbm_regs + MSI_MAP(msi));
9bb3c227 DM	213
	214	return 0;
	215	}
	216
759f89e0	217	static int pci_fire_msi_teardown(struct pci_pbm_info *pbm, unsigned long msi)
9bb3c227	218	{
759f89e0 DM	219	u64 val;
759f89e0 DM	220
87395fc6	221	val = upa_readq(pbm->pbm_regs + MSI_MAP(msi));
759f89e0 DM	222
	223	val &= ~MSI_MAP_VALID;
	224
87395fc6	225	upa_writeq(val, pbm->pbm_regs + MSI_MAP(msi));
759f89e0 DM	226
759f89e0 DM	227	return 0;
9bb3c227 DM	228	}
9bb3c227 DM	229
759f89e0	230	static int pci_fire_msiq_alloc(struct pci_pbm_info *pbm)
9bb3c227 DM	231	{
	232	unsigned long pages, order, i;
	233
	234	order = get_order(512 * 1024);
	235	pages = __get_free_pages(GFP_KERNEL \| __GFP_COMP, order);
	236	if (pages == 0UL) {
	237	printk(KERN_ERR "MSI: Cannot allocate MSI queues (o=%lu).\n",
	238	order);
	239	return -ENOMEM;
	240	}
	241	memset((char *)pages, 0, PAGE_SIZE << order);
	242	pbm->msi_queues = (void *) pages;
	243
87395fc6 DM	244	upa_writeq((EVENT_QUEUE_BASE_ADDR_ALL_ONES \|
	245	__pa(pbm->msi_queues)),
	246	pbm->pbm_regs + EVENT_QUEUE_BASE_ADDR_REG);
9bb3c227	247
87395fc6 DM	248	upa_writeq(pbm->portid << 6, pbm->pbm_regs + IMONDO_DATA0);
87395fc6 DM	249	upa_writeq(0, pbm->pbm_regs + IMONDO_DATA1);
9bb3c227	250
87395fc6 DM	251	upa_writeq(pbm->msi32_start, pbm->pbm_regs + MSI_32BIT_ADDR);
87395fc6 DM	252	upa_writeq(pbm->msi64_start, pbm->pbm_regs + MSI_64BIT_ADDR);
9bb3c227 DM	253
9bb3c227 DM	254	for (i = 0; i < pbm->msiq_num; i++) {
87395fc6 DM	255	upa_writeq(0, pbm->pbm_regs + EVENT_QUEUE_HEAD(i));
87395fc6 DM	256	upa_writeq(0, pbm->pbm_regs + EVENT_QUEUE_TAIL(i));
9bb3c227 DM	257	}
	258
	259	return 0;
	260	}
	261
759f89e0	262	static void pci_fire_msiq_free(struct pci_pbm_info *pbm)
9bb3c227	263	{
759f89e0	264	unsigned long pages, order;
9bb3c227	265
759f89e0 DM	266	order = get_order(512 * 1024);
759f89e0 DM	267	pages = (unsigned long) pbm->msi_queues;
9bb3c227	268
759f89e0	269	free_pages(pages, order);
9bb3c227	270
759f89e0	271	pbm->msi_queues = NULL;
9bb3c227 DM	272	}
9bb3c227 DM	273
759f89e0 DM	274	static int pci_fire_msiq_build_irq(struct pci_pbm_info *pbm,
	275	unsigned long msiqid,
	276	unsigned long devino)
9bb3c227	277	{
759f89e0 DM	278	unsigned long cregs = (unsigned long) pbm->pbm_regs;
759f89e0 DM	279	unsigned long imap_reg, iclr_reg, int_ctrlr;
44ed3c0c	280	unsigned int irq;
759f89e0	281	int fixup;
9bb3c227 DM	282	u64 val;
9bb3c227 DM	283
759f89e0 DM	284	imap_reg = cregs + (0x001000UL + (devino * 0x08UL));
759f89e0 DM	285	iclr_reg = cregs + (0x001400UL + (devino * 0x08UL));
9bb3c227	286
759f89e0 DM	287	/* XXX iterate amongst the 4 IRQ controllers XXX */
759f89e0 DM	288	int_ctrlr = (1UL << 6);
9bb3c227	289
87395fc6	290	val = upa_readq(imap_reg);
759f89e0	291	val \|= (1UL << 63) \| int_ctrlr;
87395fc6	292	upa_writeq(val, imap_reg);
9bb3c227	293
759f89e0	294	fixup = ((pbm->portid << 6) \| devino) - int_ctrlr;
9bb3c227	295
44ed3c0c SR	296	irq = build_irq(fixup, iclr_reg, imap_reg);
44ed3c0c SR	297	if (!irq)
759f89e0	298	return -ENOMEM;
9bb3c227	299
87395fc6 DM	300	upa_writeq(EVENT_QUEUE_CONTROL_SET_EN,
87395fc6 DM	301	pbm->pbm_regs + EVENT_QUEUE_CONTROL_SET(msiqid));
9bb3c227	302
44ed3c0c	303	return irq;
9bb3c227 DM	304	}
9bb3c227 DM	305
759f89e0 DM	306	static const struct sparc64_msiq_ops pci_fire_msiq_ops = {
	307	.get_head = pci_fire_get_head,
	308	.dequeue_msi = pci_fire_dequeue_msi,
	309	.set_head = pci_fire_set_head,
	310	.msi_setup = pci_fire_msi_setup,
	311	.msi_teardown = pci_fire_msi_teardown,
	312	.msiq_alloc = pci_fire_msiq_alloc,
	313	.msiq_free = pci_fire_msiq_free,
	314	.msiq_build_irq = pci_fire_msiq_build_irq,
	315	};
9bb3c227 DM	316
	317	static void pci_fire_msi_init(struct pci_pbm_info *pbm)
	318	{
759f89e0	319	sparc64_pbm_msi_init(pbm, &pci_fire_msiq_ops);
9bb3c227 DM	320	}
	321	#else /* CONFIG_PCI_MSI */
	322	static void pci_fire_msi_init(struct pci_pbm_info *pbm)
	323	{
	324	}
	325	#endif /* !(CONFIG_PCI_MSI) */
	326
861fe906 DM	327	/* Based at pbm->controller_regs */
	328	#define FIRE_PARITY_CONTROL 0x470010UL
	329	#define FIRE_PARITY_ENAB 0x8000000000000000UL
	330	#define FIRE_FATAL_RESET_CTL 0x471028UL
	331	#define FIRE_FATAL_RESET_SPARE 0x0000000004000000UL
	332	#define FIRE_FATAL_RESET_MB 0x0000000002000000UL
	333	#define FIRE_FATAL_RESET_CPE 0x0000000000008000UL
	334	#define FIRE_FATAL_RESET_APE 0x0000000000004000UL
	335	#define FIRE_FATAL_RESET_PIO 0x0000000000000040UL
	336	#define FIRE_FATAL_RESET_JW 0x0000000000000004UL
	337	#define FIRE_FATAL_RESET_JI 0x0000000000000002UL
	338	#define FIRE_FATAL_RESET_JR 0x0000000000000001UL
	339	#define FIRE_CORE_INTR_ENABLE 0x471800UL
	340
	341	/* Based at pbm->pbm_regs */
	342	#define FIRE_TLU_CTRL 0x80000UL
	343	#define FIRE_TLU_CTRL_TIM 0x00000000da000000UL
	344	#define FIRE_TLU_CTRL_QDET 0x0000000000000100UL
	345	#define FIRE_TLU_CTRL_CFG 0x0000000000000001UL
	346	#define FIRE_TLU_DEV_CTRL 0x90008UL
	347	#define FIRE_TLU_LINK_CTRL 0x90020UL
	348	#define FIRE_TLU_LINK_CTRL_CLK 0x0000000000000040UL
	349	#define FIRE_LPU_RESET 0xe2008UL
	350	#define FIRE_LPU_LLCFG 0xe2200UL
	351	#define FIRE_LPU_LLCFG_VC0 0x0000000000000100UL
	352	#define FIRE_LPU_FCTRL_UCTRL 0xe2240UL
	353	#define FIRE_LPU_FCTRL_UCTRL_N 0x0000000000000002UL
	354	#define FIRE_LPU_FCTRL_UCTRL_P 0x0000000000000001UL
	355	#define FIRE_LPU_TXL_FIFOP 0xe2430UL
	356	#define FIRE_LPU_LTSSM_CFG2 0xe2788UL
	357	#define FIRE_LPU_LTSSM_CFG3 0xe2790UL
	358	#define FIRE_LPU_LTSSM_CFG4 0xe2798UL
	359	#define FIRE_LPU_LTSSM_CFG5 0xe27a0UL
	360	#define FIRE_DMC_IENAB 0x31800UL
	361	#define FIRE_DMC_DBG_SEL_A 0x53000UL
	362	#define FIRE_DMC_DBG_SEL_B 0x53008UL
	363	#define FIRE_PEC_IENAB 0x51800UL
	364
	365	static void pci_fire_hw_init(struct pci_pbm_info *pbm)
	366	{
	367	u64 val;
	368
87395fc6 DM	369	upa_writeq(FIRE_PARITY_ENAB,
87395fc6 DM	370	pbm->controller_regs + FIRE_PARITY_CONTROL);
861fe906	371
87395fc6	372	upa_writeq((FIRE_FATAL_RESET_SPARE \|
861fe906 DM	373	FIRE_FATAL_RESET_MB \|
	374	FIRE_FATAL_RESET_CPE \|
	375	FIRE_FATAL_RESET_APE \|
	376	FIRE_FATAL_RESET_PIO \|
	377	FIRE_FATAL_RESET_JW \|
	378	FIRE_FATAL_RESET_JI \|
87395fc6 DM	379	FIRE_FATAL_RESET_JR),
87395fc6 DM	380	pbm->controller_regs + FIRE_FATAL_RESET_CTL);
861fe906	381
87395fc6	382	upa_writeq(~(u64)0, pbm->controller_regs + FIRE_CORE_INTR_ENABLE);
861fe906	383
87395fc6	384	val = upa_readq(pbm->pbm_regs + FIRE_TLU_CTRL);
861fe906 DM	385	val \|= (FIRE_TLU_CTRL_TIM \|
	386	FIRE_TLU_CTRL_QDET \|
	387	FIRE_TLU_CTRL_CFG);
87395fc6 DM	388	upa_writeq(val, pbm->pbm_regs + FIRE_TLU_CTRL);
	389	upa_writeq(0, pbm->pbm_regs + FIRE_TLU_DEV_CTRL);
	390	upa_writeq(FIRE_TLU_LINK_CTRL_CLK,
	391	pbm->pbm_regs + FIRE_TLU_LINK_CTRL);
	392
	393	upa_writeq(0, pbm->pbm_regs + FIRE_LPU_RESET);
	394	upa_writeq(FIRE_LPU_LLCFG_VC0, pbm->pbm_regs + FIRE_LPU_LLCFG);
	395	upa_writeq((FIRE_LPU_FCTRL_UCTRL_N \| FIRE_LPU_FCTRL_UCTRL_P),
	396	pbm->pbm_regs + FIRE_LPU_FCTRL_UCTRL);
	397	upa_writeq(((0xffff << 16) \| (0x0000 << 0)),
	398	pbm->pbm_regs + FIRE_LPU_TXL_FIFOP);
	399	upa_writeq(3000000, pbm->pbm_regs + FIRE_LPU_LTSSM_CFG2);
	400	upa_writeq(500000, pbm->pbm_regs + FIRE_LPU_LTSSM_CFG3);
	401	upa_writeq((2 << 16) \| (140 << 8),
	402	pbm->pbm_regs + FIRE_LPU_LTSSM_CFG4);
	403	upa_writeq(0, pbm->pbm_regs + FIRE_LPU_LTSSM_CFG5);
	404
	405	upa_writeq(~(u64)0, pbm->pbm_regs + FIRE_DMC_IENAB);
	406	upa_writeq(0, pbm->pbm_regs + FIRE_DMC_DBG_SEL_A);
	407	upa_writeq(0, pbm->pbm_regs + FIRE_DMC_DBG_SEL_B);
	408
	409	upa_writeq(~(u64)0, pbm->pbm_regs + FIRE_PEC_IENAB);
861fe906 DM	410	}
861fe906 DM	411
7c9503b8 GKH	412	static int pci_fire_pbm_init(struct pci_pbm_info *pbm,
7c9503b8 GKH	413	struct platform_device *op, u32 portid)
861fe906 DM	414	{
861fe906 DM	415	const struct linux_prom64_registers *regs;
61c7a080	416	struct device_node *dp = op->dev.of_node;
9bb3c227	417	int err;
861fe906	418
c1b1a5f1 DM	419	pbm->numa_node = -1;
c1b1a5f1 DM	420
ca3dd88e DM	421	pbm->pci_ops = &sun4u_pci_ops;
ca3dd88e DM	422	pbm->config_space_reg_bits = 12;
34768bc8	423
6c108f12 DM	424	pbm->index = pci_num_pbms++;
6c108f12 DM	425
861fe906	426	pbm->portid = portid;
22fecbae	427	pbm->op = op;
861fe906 DM	428	pbm->name = dp->full_name;
	429
	430	regs = of_get_property(dp, "reg", NULL);
	431	pbm->pbm_regs = regs[0].phys_addr;
	432	pbm->controller_regs = regs[1].phys_addr - 0x410000UL;
	433
	434	printk("%s: SUN4U PCIE Bus Module\n", pbm->name);
	435
	436	pci_determine_mem_io_space(pbm);
	437
cfa0652c	438	pci_get_pbm_props(pbm);
861fe906 DM	439
861fe906 DM	440	pci_fire_hw_init(pbm);
ad7ad57c	441
9bb3c227 DM	442	err = pci_fire_pbm_iommu_init(pbm);
	443	if (err)
	444	return err;
	445
	446	pci_fire_msi_init(pbm);
	447
e822358a DM	448	pbm->pci_bus = pci_scan_one_pbm(pbm, &op->dev);
	449
	450	/* XXX register error interrupt handlers XXX */
c8049966	451
d3ae4b5b DM	452	pbm->next = pci_pbm_root;
d3ae4b5b DM	453	pci_pbm_root = pbm;
861fe906	454
861fe906 DM	455	return 0;
	456	}
	457
7c9503b8	458	static int fire_probe(struct platform_device *op)
861fe906	459	{
61c7a080	460	struct device_node *dp = op->dev.of_node;
34768bc8	461	struct pci_pbm_info *pbm;
c8049966 DM	462	struct iommu *iommu;
	463	u32 portid;
	464	int err;
861fe906	465
c8049966	466	portid = of_getintprop_default(dp, "portid", 0xff);
861fe906	467
c8049966	468	err = -ENOMEM;
d3ae4b5b DM	469	pbm = kzalloc(sizeof(*pbm), GFP_KERNEL);
	470	if (!pbm) {
	471	printk(KERN_ERR PFX "Cannot allocate pci_pbminfo.\n");
d7472c38	472	goto out_err;
c8049966	473	}
861fe906	474
d3ae4b5b	475	iommu = kzalloc(sizeof(struct iommu), GFP_KERNEL);
c8049966	476	if (!iommu) {
d3ae4b5b	477	printk(KERN_ERR PFX "Cannot allocate PBM iommu.\n");
d7472c38	478	goto out_free_controller;
c8049966	479	}
861fe906	480
d3ae4b5b	481	pbm->iommu = iommu;
861fe906	482
d3ae4b5b DM	483	err = pci_fire_pbm_init(pbm, op, portid);
	484	if (err)
	485	goto out_free_iommu;
861fe906	486
d3ae4b5b	487	dev_set_drvdata(&op->dev, pbm);
861fe906	488
d3ae4b5b	489	return 0;
ad7ad57c	490
d3ae4b5b DM	491	out_free_iommu:
d3ae4b5b DM	492	kfree(pbm->iommu);
d7472c38 DM	493
d7472c38 DM	494	out_free_controller:
d3ae4b5b	495	kfree(pbm);
d7472c38 DM	496
d7472c38 DM	497	out_err:
c8049966 DM	498	return err;
	499	}
	500
3628aa06	501	static const struct of_device_id fire_match[] = {
c8049966 DM	502	{
	503	.name = "pci",
	504	.compatible = "pciex108e,80f0",
	505	},
	506	{},
	507	};
861fe906	508
4ebb24f7	509	static struct platform_driver fire_driver = {
4018294b GL	510	.driver = {
4018294b GL	511	.name = DRIVER_NAME,
4018294b GL	512	.of_match_table = fire_match,
4018294b GL	513	},
c8049966 DM	514	.probe = fire_probe,
	515	};
	516
	517	static int __init fire_init(void)
	518	{
4ebb24f7	519	return platform_driver_register(&fire_driver);
861fe906	520	}
c8049966 DM	521
c8049966 DM	522	subsys_initcall(fire_init);