[deliverable/linux.git] / arch / powerpc / platforms / pasemi / setup.c

/*
 * Copyright (C) 2006-2007 PA Semi, Inc
 *
 * Authors: Kip Walker, PA Semi
 *	    Olof Johansson, PA Semi
 *
 * Maintained by: Olof Johansson <olof@lixom.net>
 *
 * Based on arch/powerpc/platforms/maple/setup.c
 *
 * 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/errno.h>
#include <linux/kernel.h>
#include <linux/delay.h>
#include <linux/console.h>
#include <linux/pci.h>
#include <linux/of_platform.h>

#include <asm/prom.h>
#include <asm/system.h>
#include <asm/iommu.h>
#include <asm/machdep.h>
#include <asm/mpic.h>
#include <asm/smp.h>
#include <asm/time.h>
#include <asm/mmu.h>

#include <pcmcia/ss.h>
#include <pcmcia/cistpl.h>
#include <pcmcia/ds.h>

#include "pasemi.h"

/* SDC reset register, must be pre-mapped at reset time */
static void __iomem *reset_reg;

/* Various error status registers, must be pre-mapped at MCE time */

#define MAX_MCE_REGS	32
struct mce_regs {
	char *name;
	void __iomem *addr;
};

static struct mce_regs mce_regs[MAX_MCE_REGS];
static int num_mce_regs;
static int nmi_virq = NO_IRQ;


static void pas_restart(char *cmd)
{
	/* Need to put others cpu in hold loop so they're not sleeping */
	smp_send_stop();
	udelay(10000);
	printk("Restarting...\n");
	while (1)
		out_le32(reset_reg, 0x6000000);
}

#ifdef CONFIG_SMP
static arch_spinlock_t timebase_lock;
static unsigned long timebase;

static void __devinit pas_give_timebase(void)
{
	unsigned long flags;

	local_irq_save(flags);
	hard_irq_disable();
	__raw_spin_lock(&timebase_lock);
	mtspr(SPRN_TBCTL, TBCTL_FREEZE);
	isync();
	timebase = get_tb();
	__raw_spin_unlock(&timebase_lock);

	while (timebase)
		barrier();
	mtspr(SPRN_TBCTL, TBCTL_RESTART);
	local_irq_restore(flags);
}

static void __devinit pas_take_timebase(void)
{
	while (!timebase)
		smp_rmb();

	__raw_spin_lock(&timebase_lock);
	set_tb(timebase >> 32, timebase & 0xffffffff);
	timebase = 0;
	__raw_spin_unlock(&timebase_lock);
}

struct smp_ops_t pas_smp_ops = {
	.probe		= smp_mpic_probe,
	.message_pass	= smp_mpic_message_pass,
	.kick_cpu	= smp_generic_kick_cpu,
	.setup_cpu	= smp_mpic_setup_cpu,
	.give_timebase	= pas_give_timebase,
	.take_timebase	= pas_take_timebase,
};
#endif /* CONFIG_SMP */

void __init pas_setup_arch(void)
{
#ifdef CONFIG_SMP
	/* Setup SMP callback */
	smp_ops = &pas_smp_ops;
#endif
	/* Lookup PCI hosts */
	pas_pci_init();

#ifdef CONFIG_DUMMY_CONSOLE
	conswitchp = &dummy_con;
#endif

	/* Remap SDC register for doing reset */
	/* XXXOJN This should maybe come out of the device tree */
	reset_reg = ioremap(0xfc101100, 4);
}

static int __init pas_setup_mce_regs(void)
{
	struct pci_dev *dev;
	int reg;

	/* Remap various SoC status registers for use by the MCE handler */

	reg = 0;

	dev = pci_get_device(PCI_VENDOR_ID_PASEMI, 0xa00a, NULL);
	while (dev && reg < MAX_MCE_REGS) {
		mce_regs[reg].name = kasprintf(GFP_KERNEL,
						"mc%d_mcdebug_errsta", reg);
		mce_regs[reg].addr = pasemi_pci_getcfgaddr(dev, 0x730);
		dev = pci_get_device(PCI_VENDOR_ID_PASEMI, 0xa00a, dev);
		reg++;
	}

	dev = pci_get_device(PCI_VENDOR_ID_PASEMI, 0xa001, NULL);
	if (dev && reg+4 < MAX_MCE_REGS) {
		mce_regs[reg].name = "iobdbg_IntStatus1";
		mce_regs[reg].addr = pasemi_pci_getcfgaddr(dev, 0x438);
		reg++;
		mce_regs[reg].name = "iobdbg_IOCTbusIntDbgReg";
		mce_regs[reg].addr = pasemi_pci_getcfgaddr(dev, 0x454);
		reg++;
		mce_regs[reg].name = "iobiom_IntStatus";
		mce_regs[reg].addr = pasemi_pci_getcfgaddr(dev, 0xc10);
		reg++;
		mce_regs[reg].name = "iobiom_IntDbgReg";
		mce_regs[reg].addr = pasemi_pci_getcfgaddr(dev, 0xc1c);
		reg++;
	}

	dev = pci_get_device(PCI_VENDOR_ID_PASEMI, 0xa009, NULL);
	if (dev && reg+2 < MAX_MCE_REGS) {
		mce_regs[reg].name = "l2csts_IntStatus";
		mce_regs[reg].addr = pasemi_pci_getcfgaddr(dev, 0x200);
		reg++;
		mce_regs[reg].name = "l2csts_Cnt";
		mce_regs[reg].addr = pasemi_pci_getcfgaddr(dev, 0x214);
		reg++;
	}

	num_mce_regs = reg;

	return 0;
}
machine_device_initcall(pasemi, pas_setup_mce_regs);

static __init void pas_init_IRQ(void)
{
	struct device_node *np;
	struct device_node *root, *mpic_node;
	unsigned long openpic_addr;
	const unsigned int *opprop;
	int naddr, opplen;
	int mpic_flags;
	const unsigned int *nmiprop;
	struct mpic *mpic;

	mpic_node = NULL;

	for_each_node_by_type(np, "interrupt-controller")
		if (of_device_is_compatible(np, "open-pic")) {
			mpic_node = np;
			break;
		}
	if (!mpic_node)
		for_each_node_by_type(np, "open-pic") {
			mpic_node = np;
			break;
		}
	if (!mpic_node) {
		printk(KERN_ERR
			"Failed to locate the MPIC interrupt controller\n");
		return;
	}

	/* Find address list in /platform-open-pic */
	root = of_find_node_by_path("/");
	naddr = of_n_addr_cells(root);
	opprop = of_get_property(root, "platform-open-pic", &opplen);
	if (!opprop) {
		printk(KERN_ERR "No platform-open-pic property.\n");
		of_node_put(root);
		return;
	}
	openpic_addr = of_read_number(opprop, naddr);
	printk(KERN_DEBUG "OpenPIC addr: %lx\n", openpic_addr);

	mpic_flags = MPIC_PRIMARY | MPIC_LARGE_VECTORS | MPIC_NO_BIAS;

	nmiprop = of_get_property(mpic_node, "nmi-source", NULL);
	if (nmiprop)
		mpic_flags |= MPIC_ENABLE_MCK;

	mpic = mpic_alloc(mpic_node, openpic_addr,
			  mpic_flags, 0, 0, "PASEMI-OPIC");
	BUG_ON(!mpic);

	mpic_assign_isu(mpic, 0, openpic_addr + 0x10000);
	mpic_init(mpic);
	/* The NMI/MCK source needs to be prio 15 */
	if (nmiprop) {
		nmi_virq = irq_create_mapping(NULL, *nmiprop);
		mpic_irq_set_priority(nmi_virq, 15);
		set_irq_type(nmi_virq, IRQ_TYPE_EDGE_RISING);
		mpic_unmask_irq(nmi_virq);
	}

	of_node_put(mpic_node);
	of_node_put(root);
}

static void __init pas_progress(char *s, unsigned short hex)
{
	printk("[%04x] : %s\n", hex, s ? s : "");
}


static int pas_machine_check_handler(struct pt_regs *regs)
{
	int cpu = smp_processor_id();
	unsigned long srr0, srr1, dsisr;
	int dump_slb = 0;
	int i;

	srr0 = regs->nip;
	srr1 = regs->msr;

	if (nmi_virq != NO_IRQ && mpic_get_mcirq() == nmi_virq) {
		printk(KERN_ERR "NMI delivered\n");
		debugger(regs);
		mpic_end_irq(nmi_virq);
		goto out;
	}

	dsisr = mfspr(SPRN_DSISR);
	printk(KERN_ERR "Machine Check on CPU %d\n", cpu);
	printk(KERN_ERR "SRR0  0x%016lx SRR1 0x%016lx\n", srr0, srr1);
	printk(KERN_ERR "DSISR 0x%016lx DAR  0x%016lx\n", dsisr, regs->dar);
	printk(KERN_ERR "BER   0x%016lx MER  0x%016lx\n", mfspr(SPRN_PA6T_BER),
		mfspr(SPRN_PA6T_MER));
	printk(KERN_ERR "IER   0x%016lx DER  0x%016lx\n", mfspr(SPRN_PA6T_IER),
		mfspr(SPRN_PA6T_DER));
	printk(KERN_ERR "Cause:\n");

	if (srr1 & 0x200000)
		printk(KERN_ERR "Signalled by SDC\n");

	if (srr1 & 0x100000) {
		printk(KERN_ERR "Load/Store detected error:\n");
		if (dsisr & 0x8000)
			printk(KERN_ERR "D-cache ECC double-bit error or bus error\n");
		if (dsisr & 0x4000)
			printk(KERN_ERR "LSU snoop response error\n");
		if (dsisr & 0x2000) {
			printk(KERN_ERR "MMU SLB multi-hit or invalid B field\n");
			dump_slb = 1;
		}
		if (dsisr & 0x1000)
			printk(KERN_ERR "Recoverable Duptags\n");
		if (dsisr & 0x800)
			printk(KERN_ERR "Recoverable D-cache parity error count overflow\n");
		if (dsisr & 0x400)
			printk(KERN_ERR "TLB parity error count overflow\n");
	}

	if (srr1 & 0x80000)
		printk(KERN_ERR "Bus Error\n");

	if (srr1 & 0x40000) {
		printk(KERN_ERR "I-side SLB multiple hit\n");
		dump_slb = 1;
	}

	if (srr1 & 0x20000)
		printk(KERN_ERR "I-cache parity error hit\n");

	if (num_mce_regs == 0)
		printk(KERN_ERR "No MCE registers mapped yet, can't dump\n");
	else
		printk(KERN_ERR "SoC debug registers:\n");

	for (i = 0; i < num_mce_regs; i++)
		printk(KERN_ERR "%s: 0x%08x\n", mce_regs[i].name,
			in_le32(mce_regs[i].addr));

	if (dump_slb) {
		unsigned long e, v;
		int i;

		printk(KERN_ERR "slb contents:\n");
		for (i = 0; i < mmu_slb_size; i++) {
			asm volatile("slbmfee  %0,%1" : "=r" (e) : "r" (i));
			asm volatile("slbmfev  %0,%1" : "=r" (v) : "r" (i));
			printk(KERN_ERR "%02d %016lx %016lx\n", i, e, v);
		}
	}

out:
	/* SRR1[62] is from MSR[62] if recoverable, so pass that back */
	return !!(srr1 & 0x2);
}

static void __init pas_init_early(void)
{
	iommu_init_early_pasemi();
}

#ifdef CONFIG_PCMCIA
static int pcmcia_notify(struct notifier_block *nb, unsigned long action,
			 void *data)
{
	struct device *dev = data;
	struct device *parent;
	struct pcmcia_device *pdev = to_pcmcia_dev(dev);

	/* We are only intereted in device addition */
	if (action != BUS_NOTIFY_ADD_DEVICE)
		return 0;

	parent = pdev->socket->dev.parent;

	/* We know electra_cf devices will always have of_node set, since
	 * electra_cf is an of_platform driver.
	 */
	if (!parent->archdata.of_node)
		return 0;

	if (!of_device_is_compatible(parent->archdata.of_node, "electra-cf"))
		return 0;

	/* We use the direct ops for localbus */
	dev->archdata.dma_ops = &dma_direct_ops;

	return 0;
}

static struct notifier_block pcmcia_notifier = {
	.notifier_call = pcmcia_notify,
};

static inline void pasemi_pcmcia_init(void)
{
	extern struct bus_type pcmcia_bus_type;

	bus_register_notifier(&pcmcia_bus_type, &pcmcia_notifier);
}

#else

static inline void pasemi_pcmcia_init(void)
{
}

#endif


static struct of_device_id pasemi_bus_ids[] = {
	/* Unfortunately needed for legacy firmwares */
	{ .type = "localbus", },
	{ .type = "sdc", },
	/* These are the proper entries, which newer firmware uses */
	{ .compatible = "pasemi,localbus", },
	{ .compatible = "pasemi,sdc", },
	{},
};

static int __init pasemi_publish_devices(void)
{
	pasemi_pcmcia_init();

	/* Publish OF platform devices for SDC and other non-PCI devices */
	of_platform_bus_probe(NULL, pasemi_bus_ids, NULL);

	return 0;
}
machine_device_initcall(pasemi, pasemi_publish_devices);


/*
 * Called very early, MMU is off, device-tree isn't unflattened
 */
static int __init pas_probe(void)
{
	unsigned long root = of_get_flat_dt_root();

	if (!of_flat_dt_is_compatible(root, "PA6T-1682M") &&
	    !of_flat_dt_is_compatible(root, "pasemi,pwrficient"))
		return 0;

	hpte_init_native();

	alloc_iobmap_l2();

	return 1;
}

define_machine(pasemi) {
	.name			= "PA Semi PWRficient",
	.probe			= pas_probe,
	.setup_arch		= pas_setup_arch,
	.init_early		= pas_init_early,
	.init_IRQ		= pas_init_IRQ,
	.get_irq		= mpic_get_irq,
	.restart		= pas_restart,
	.get_boot_time		= pas_get_boot_time,
	.calibrate_decr		= generic_calibrate_decr,
	.progress		= pas_progress,
	.machine_check_exception = pas_machine_check_handler,
};
Commit	Line	Data
1e76875e	1	/*
31c56d82	2	* Copyright (C) 2006-2007 PA Semi, Inc
1e76875e OJ	3	*
	4	* Authors: Kip Walker, PA Semi
	5	* Olof Johansson, PA Semi
	6	*
	7	* Maintained by: Olof Johansson <olof@lixom.net>
	8	*
	9	* Based on arch/powerpc/platforms/maple/setup.c
	10	*
	11	* This program is free software; you can redistribute it and/or modify
	12	* it under the terms of the GNU General Public License version 2 as
	13	* published by the Free Software Foundation.
	14	*
	15	* This program is distributed in the hope that it will be useful,
	16	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	17	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	18	* GNU General Public License for more details.
	19	*
	20	* You should have received a copy of the GNU General Public License
	21	* along with this program; if not, write to the Free Software
	22	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	23	*/
	24
1e76875e OJ	25	#include <linux/errno.h>
	26	#include <linux/kernel.h>
	27	#include <linux/delay.h>
	28	#include <linux/console.h>
12d04eef	29	#include <linux/pci.h>
5f867dc7	30	#include <linux/of_platform.h>
1e76875e OJ	31
	32	#include <asm/prom.h>
	33	#include <asm/system.h>
	34	#include <asm/iommu.h>
	35	#include <asm/machdep.h>
	36	#include <asm/mpic.h>
	37	#include <asm/smp.h>
	38	#include <asm/time.h>
584f8b71	39	#include <asm/mmu.h>
1e76875e	40
2b571a06 OJ	41	#include <pcmcia/ss.h>
	42	#include <pcmcia/cistpl.h>
	43	#include <pcmcia/ds.h>
	44
1e76875e OJ	45	#include "pasemi.h"
1e76875e OJ	46
cd783416	47	/* SDC reset register, must be pre-mapped at reset time */
f620be99	48	static void __iomem *reset_reg;
1e76875e	49
cd783416 OJ	50	/* Various error status registers, must be pre-mapped at MCE time */
	51
	52	#define MAX_MCE_REGS 32
	53	struct mce_regs {
	54	char *name;
	55	void __iomem *addr;
	56	};
	57
	58	static struct mce_regs mce_regs[MAX_MCE_REGS];
	59	static int num_mce_regs;
f365355e	60	static int nmi_virq = NO_IRQ;
cd783416 OJ	61
cd783416 OJ	62
f620be99	63	static void pas_restart(char *cmd)
1e76875e	64	{
32e2b55e OJ	65	/* Need to put others cpu in hold loop so they're not sleeping */
	66	smp_send_stop();
	67	udelay(10000);
f620be99 OJ	68	printk("Restarting...\n");
	69	while (1)
	70	out_le32(reset_reg, 0x6000000);
1e76875e OJ	71	}
	72
	73	#ifdef CONFIG_SMP
445c8951	74	static arch_spinlock_t timebase_lock;
dc559f7c	75	static unsigned long timebase;
c388cfeb OJ	76
	77	static void __devinit pas_give_timebase(void)
	78	{
6893ce6c BH	79	unsigned long flags;
	80
	81	local_irq_save(flags);
	82	hard_irq_disable();
	83	__raw_spin_lock(&timebase_lock);
c388cfeb	84	mtspr(SPRN_TBCTL, TBCTL_FREEZE);
dc559f7c OJ	85	isync();
dc559f7c OJ	86	timebase = get_tb();
6893ce6c	87	__raw_spin_unlock(&timebase_lock);
dc559f7c OJ	88
	89	while (timebase)
	90	barrier();
	91	mtspr(SPRN_TBCTL, TBCTL_RESTART);
6893ce6c	92	local_irq_restore(flags);
c388cfeb OJ	93	}
	94
	95	static void __devinit pas_take_timebase(void)
	96	{
dc559f7c OJ	97	while (!timebase)
	98	smp_rmb();
	99
6893ce6c	100	__raw_spin_lock(&timebase_lock);
dc559f7c OJ	101	set_tb(timebase >> 32, timebase & 0xffffffff);
dc559f7c OJ	102	timebase = 0;
6893ce6c	103	__raw_spin_unlock(&timebase_lock);
c388cfeb OJ	104	}
c388cfeb OJ	105
1e76875e OJ	106	struct smp_ops_t pas_smp_ops = {
	107	.probe = smp_mpic_probe,
	108	.message_pass = smp_mpic_message_pass,
	109	.kick_cpu = smp_generic_kick_cpu,
	110	.setup_cpu = smp_mpic_setup_cpu,
c388cfeb OJ	111	.give_timebase = pas_give_timebase,
c388cfeb OJ	112	.take_timebase = pas_take_timebase,
1e76875e OJ	113	};
	114	#endif /* CONFIG_SMP */
	115
	116	void __init pas_setup_arch(void)
	117	{
	118	#ifdef CONFIG_SMP
	119	/* Setup SMP callback */
	120	smp_ops = &pas_smp_ops;
	121	#endif
	122	/* Lookup PCI hosts */
	123	pas_pci_init();
	124
	125	#ifdef CONFIG_DUMMY_CONSOLE
	126	conswitchp = &dummy_con;
	127	#endif
	128
f620be99 OJ	129	/* Remap SDC register for doing reset */
	130	/* XXXOJN This should maybe come out of the device tree */
	131	reset_reg = ioremap(0xfc101100, 4);
1e76875e OJ	132	}
1e76875e OJ	133
cd783416 OJ	134	static int __init pas_setup_mce_regs(void)
	135	{
	136	struct pci_dev *dev;
	137	int reg;
	138
cd783416 OJ	139	/* Remap various SoC status registers for use by the MCE handler */
	140
	141	reg = 0;
	142
	143	dev = pci_get_device(PCI_VENDOR_ID_PASEMI, 0xa00a, NULL);
	144	while (dev && reg < MAX_MCE_REGS) {
	145	mce_regs[reg].name = kasprintf(GFP_KERNEL,
	146	"mc%d_mcdebug_errsta", reg);
	147	mce_regs[reg].addr = pasemi_pci_getcfgaddr(dev, 0x730);
	148	dev = pci_get_device(PCI_VENDOR_ID_PASEMI, 0xa00a, dev);
	149	reg++;
	150	}
	151
	152	dev = pci_get_device(PCI_VENDOR_ID_PASEMI, 0xa001, NULL);
	153	if (dev && reg+4 < MAX_MCE_REGS) {
	154	mce_regs[reg].name = "iobdbg_IntStatus1";
	155	mce_regs[reg].addr = pasemi_pci_getcfgaddr(dev, 0x438);
	156	reg++;
	157	mce_regs[reg].name = "iobdbg_IOCTbusIntDbgReg";
	158	mce_regs[reg].addr = pasemi_pci_getcfgaddr(dev, 0x454);
	159	reg++;
	160	mce_regs[reg].name = "iobiom_IntStatus";
	161	mce_regs[reg].addr = pasemi_pci_getcfgaddr(dev, 0xc10);
	162	reg++;
	163	mce_regs[reg].name = "iobiom_IntDbgReg";
	164	mce_regs[reg].addr = pasemi_pci_getcfgaddr(dev, 0xc1c);
	165	reg++;
	166	}
	167
	168	dev = pci_get_device(PCI_VENDOR_ID_PASEMI, 0xa009, NULL);
	169	if (dev && reg+2 < MAX_MCE_REGS) {
	170	mce_regs[reg].name = "l2csts_IntStatus";
	171	mce_regs[reg].addr = pasemi_pci_getcfgaddr(dev, 0x200);
	172	reg++;
	173	mce_regs[reg].name = "l2csts_Cnt";
	174	mce_regs[reg].addr = pasemi_pci_getcfgaddr(dev, 0x214);
	175	reg++;
	176	}
	177
	178	num_mce_regs = reg;
	179
	180	return 0;
	181	}
bdddec45	182	machine_device_initcall(pasemi, pas_setup_mce_regs);
cd783416	183
1e76875e OJ	184	static __init void pas_init_IRQ(void)
	185	{
	186	struct device_node *np;
	187	struct device_node root, mpic_node;
	188	unsigned long openpic_addr;
	189	const unsigned int *opprop;
	190	int naddr, opplen;
f365355e OJ	191	int mpic_flags;
f365355e OJ	192	const unsigned int *nmiprop;
1e76875e OJ	193	struct mpic *mpic;
	194
	195	mpic_node = NULL;
	196
	197	for_each_node_by_type(np, "interrupt-controller")
55b61fec	198	if (of_device_is_compatible(np, "open-pic")) {
1e76875e OJ	199	mpic_node = np;
	200	break;
	201	}
	202	if (!mpic_node)
	203	for_each_node_by_type(np, "open-pic") {
	204	mpic_node = np;
	205	break;
	206	}
	207	if (!mpic_node) {
	208	printk(KERN_ERR
	209	"Failed to locate the MPIC interrupt controller\n");
	210	return;
	211	}
	212
	213	/* Find address list in /platform-open-pic */
	214	root = of_find_node_by_path("/");
a8bda5dd	215	naddr = of_n_addr_cells(root);
e2eb6392	216	opprop = of_get_property(root, "platform-open-pic", &opplen);
1e76875e OJ	217	if (!opprop) {
	218	printk(KERN_ERR "No platform-open-pic property.\n");
	219	of_node_put(root);
	220	return;
	221	}
	222	openpic_addr = of_read_number(opprop, naddr);
	223	printk(KERN_DEBUG "OpenPIC addr: %lx\n", openpic_addr);
1e76875e	224
d87bf3be	225	mpic_flags = MPIC_PRIMARY \| MPIC_LARGE_VECTORS \| MPIC_NO_BIAS;
f365355e OJ	226
	227	nmiprop = of_get_property(mpic_node, "nmi-source", NULL);
	228	if (nmiprop)
	229	mpic_flags \|= MPIC_ENABLE_MCK;
	230
7df2457d	231	mpic = mpic_alloc(mpic_node, openpic_addr,
f365355e	232	mpic_flags, 0, 0, "PASEMI-OPIC");
1e76875e OJ	233	BUG_ON(!mpic);
	234
	235	mpic_assign_isu(mpic, 0, openpic_addr + 0x10000);
	236	mpic_init(mpic);
f365355e OJ	237	/* The NMI/MCK source needs to be prio 15 */
	238	if (nmiprop) {
	239	nmi_virq = irq_create_mapping(NULL, *nmiprop);
	240	mpic_irq_set_priority(nmi_virq, 15);
	241	set_irq_type(nmi_virq, IRQ_TYPE_EDGE_RISING);
	242	mpic_unmask_irq(nmi_virq);
	243	}
	244
1e76875e OJ	245	of_node_put(mpic_node);
	246	of_node_put(root);
	247	}
	248
	249	static void __init pas_progress(char *s, unsigned short hex)
	250	{
	251	printk("[%04x] : %s\n", hex, s ? s : "");
	252	}
	253
	254
bfed9d32 OJ	255	static int pas_machine_check_handler(struct pt_regs *regs)
	256	{
	257	int cpu = smp_processor_id();
	258	unsigned long srr0, srr1, dsisr;
cd783416 OJ	259	int dump_slb = 0;
cd783416 OJ	260	int i;
bfed9d32 OJ	261
	262	srr0 = regs->nip;
	263	srr1 = regs->msr;
f365355e	264
f0d4577c	265	if (nmi_virq != NO_IRQ && mpic_get_mcirq() == nmi_virq) {
f365355e OJ	266	printk(KERN_ERR "NMI delivered\n");
	267	debugger(regs);
	268	mpic_end_irq(nmi_virq);
	269	goto out;
	270	}
	271
bfed9d32 OJ	272	dsisr = mfspr(SPRN_DSISR);
bfed9d32 OJ	273	printk(KERN_ERR "Machine Check on CPU %d\n", cpu);
cd783416 OJ	274	printk(KERN_ERR "SRR0 0x%016lx SRR1 0x%016lx\n", srr0, srr1);
	275	printk(KERN_ERR "DSISR 0x%016lx DAR 0x%016lx\n", dsisr, regs->dar);
	276	printk(KERN_ERR "BER 0x%016lx MER 0x%016lx\n", mfspr(SPRN_PA6T_BER),
	277	mfspr(SPRN_PA6T_MER));
	278	printk(KERN_ERR "IER 0x%016lx DER 0x%016lx\n", mfspr(SPRN_PA6T_IER),
	279	mfspr(SPRN_PA6T_DER));
bfed9d32 OJ	280	printk(KERN_ERR "Cause:\n");
	281
	282	if (srr1 & 0x200000)
	283	printk(KERN_ERR "Signalled by SDC\n");
cd783416	284
bfed9d32 OJ	285	if (srr1 & 0x100000) {
	286	printk(KERN_ERR "Load/Store detected error:\n");
	287	if (dsisr & 0x8000)
	288	printk(KERN_ERR "D-cache ECC double-bit error or bus error\n");
	289	if (dsisr & 0x4000)
	290	printk(KERN_ERR "LSU snoop response error\n");
cd783416	291	if (dsisr & 0x2000) {
bfed9d32	292	printk(KERN_ERR "MMU SLB multi-hit or invalid B field\n");
cd783416 OJ	293	dump_slb = 1;
cd783416 OJ	294	}
bfed9d32 OJ	295	if (dsisr & 0x1000)
	296	printk(KERN_ERR "Recoverable Duptags\n");
	297	if (dsisr & 0x800)
	298	printk(KERN_ERR "Recoverable D-cache parity error count overflow\n");
	299	if (dsisr & 0x400)
	300	printk(KERN_ERR "TLB parity error count overflow\n");
	301	}
cd783416	302
bfed9d32 OJ	303	if (srr1 & 0x80000)
bfed9d32 OJ	304	printk(KERN_ERR "Bus Error\n");
cd783416 OJ	305
cd783416 OJ	306	if (srr1 & 0x40000) {
bfed9d32	307	printk(KERN_ERR "I-side SLB multiple hit\n");
cd783416 OJ	308	dump_slb = 1;
	309	}
	310
bfed9d32 OJ	311	if (srr1 & 0x20000)
	312	printk(KERN_ERR "I-cache parity error hit\n");
	313
cd783416 OJ	314	if (num_mce_regs == 0)
	315	printk(KERN_ERR "No MCE registers mapped yet, can't dump\n");
	316	else
	317	printk(KERN_ERR "SoC debug registers:\n");
	318
	319	for (i = 0; i < num_mce_regs; i++)
	320	printk(KERN_ERR "%s: 0x%08x\n", mce_regs[i].name,
	321	in_le32(mce_regs[i].addr));
	322
	323	if (dump_slb) {
	324	unsigned long e, v;
	325	int i;
	326
	327	printk(KERN_ERR "slb contents:\n");
584f8b71	328	for (i = 0; i < mmu_slb_size; i++) {
cd783416 OJ	329	asm volatile("slbmfee %0,%1" : "=r" (e) : "r" (i));
	330	asm volatile("slbmfev %0,%1" : "=r" (v) : "r" (i));
	331	printk(KERN_ERR "%02d %016lx %016lx\n", i, e, v);
	332	}
	333	}
	334
f365355e	335	out:
bfed9d32 OJ	336	/* SRR1[62] is from MSR[62] if recoverable, so pass that back */
	337	return !!(srr1 & 0x2);
	338	}
	339
31c56d82 OJ	340	static void __init pas_init_early(void)
	341	{
	342	iommu_init_early_pasemi();
	343	}
	344
2b571a06 OJ	345	#ifdef CONFIG_PCMCIA
	346	static int pcmcia_notify(struct notifier_block *nb, unsigned long action,
	347	void *data)
	348	{
	349	struct device *dev = data;
	350	struct device *parent;
	351	struct pcmcia_device *pdev = to_pcmcia_dev(dev);
	352
	353	/* We are only intereted in device addition */
	354	if (action != BUS_NOTIFY_ADD_DEVICE)
	355	return 0;
	356
	357	parent = pdev->socket->dev.parent;
	358
	359	/* We know electra_cf devices will always have of_node set, since
	360	* electra_cf is an of_platform driver.
	361	*/
	362	if (!parent->archdata.of_node)
	363	return 0;
	364
	365	if (!of_device_is_compatible(parent->archdata.of_node, "electra-cf"))
	366	return 0;
	367
	368	/* We use the direct ops for localbus */
	369	dev->archdata.dma_ops = &dma_direct_ops;
	370
	371	return 0;
	372	}
	373
	374	static struct notifier_block pcmcia_notifier = {
	375	.notifier_call = pcmcia_notify,
	376	};
	377
	378	static inline void pasemi_pcmcia_init(void)
	379	{
	380	extern struct bus_type pcmcia_bus_type;
	381
	382	bus_register_notifier(&pcmcia_bus_type, &pcmcia_notifier);
	383	}
	384
	385	#else
	386
	387	static inline void pasemi_pcmcia_init(void)
	388	{
	389	}
	390
	391	#endif
	392
	393
b97d2791	394	static struct of_device_id pasemi_bus_ids[] = {
0d08a847	395	/* Unfortunately needed for legacy firmwares */
2b571a06	396	{ .type = "localbus", },
b97d2791	397	{ .type = "sdc", },
0d08a847 OJ	398	/* These are the proper entries, which newer firmware uses */
	399	{ .compatible = "pasemi,localbus", },
	400	{ .compatible = "pasemi,sdc", },
b97d2791 OJ	401	{},
	402	};
	403
	404	static int __init pasemi_publish_devices(void)
	405	{
2b571a06 OJ	406	pasemi_pcmcia_init();
2b571a06 OJ	407
90f7afef	408	/* Publish OF platform devices for SDC and other non-PCI devices */
b97d2791 OJ	409	of_platform_bus_probe(NULL, pasemi_bus_ids, NULL);
	410
	411	return 0;
	412	}
bdddec45	413	machine_device_initcall(pasemi, pasemi_publish_devices);
b97d2791	414
bfed9d32	415
1e76875e OJ	416	/*
	417	* Called very early, MMU is off, device-tree isn't unflattened
	418	*/
	419	static int __init pas_probe(void)
	420	{
	421	unsigned long root = of_get_flat_dt_root();
	422
0d08a847 OJ	423	if (!of_flat_dt_is_compatible(root, "PA6T-1682M") &&
0d08a847 OJ	424	!of_flat_dt_is_compatible(root, "pasemi,pwrficient"))
1e76875e OJ	425	return 0;
	426
	427	hpte_init_native();
	428
31c56d82 OJ	429	alloc_iobmap_l2();
31c56d82 OJ	430
1e76875e OJ	431	return 1;
	432	}
	433
d4875a21	434	define_machine(pasemi) {
0d08a847	435	.name = "PA Semi PWRficient",
1e76875e OJ	436	.probe = pas_probe,
1e76875e OJ	437	.setup_arch = pas_setup_arch,
31c56d82	438	.init_early = pas_init_early,
1e76875e OJ	439	.init_IRQ = pas_init_IRQ,
1e76875e OJ	440	.get_irq = mpic_get_irq,
1e76875e	441	.restart = pas_restart,
1e76875e OJ	442	.get_boot_time = pas_get_boot_time,
1e76875e OJ	443	.calibrate_decr = generic_calibrate_decr,
1e76875e	444	.progress = pas_progress,
bfed9d32	445	.machine_check_exception = pas_machine_check_handler,
1e76875e	446	};