Merge flint.arm.linux.org.uk:/usr/src/linux-bk-2.5/linux-2.5

into flint.arm.linux.org.uk:/usr/src/linux-bk-2.5/linux-2.5-rmk

arch/arm/Kconfig

@@ -165,6 +165,8 @@ source "arch/arm/mach-epxa10db/Kconfig"
 
 source "arch/arm/mach-footbridge/Kconfig"
 
+source "arch/arm/mach-integrator/Kconfig"
+
 source "arch/arm/mach-iop3xx/Kconfig"
 
 source "arch/arm/mach-pxa/Kconfig"
@@ -1014,15 +1016,6 @@ config DEBUG_ERRORS
 	  you are concerned with the code size or don't want to see these
 	  messages.
 
-config DEBUG_INFO
-	bool "Compile the kernel with debug info"
-	depends on DEBUG_KERNEL
-	help
-          If you say Y here the resulting kernel image will include
-	  debugging info resulting in a larger kernel image.
-	  Say Y here only if you plan to use gdb to debug the kernel.
-	  If you don't debug the kernel, you can say N.
-
 # These options are only for real kernel hackers who want to get their hands dirty. 
 config DEBUG_LL
 	bool "Kernel low-level debugging functions"

arch/arm/Makefile

@@ -20,10 +20,6 @@ ifeq ($(CONFIG_FRAME_POINTER),y)
 CFLAGS		+=-fno-omit-frame-pointer -mapcs -mno-sched-prolog
 endif
 
-ifeq ($(CONFIG_DEBUG_INFO),y)
-CFLAGS		+=-g
-endif
-
 ifeq ($(CONFIG_CPU_BIG_ENDIAN),y)
 CFLAGS		+= -mbig-endian
 AS		+= -EB

arch/arm/common/amba.c

@@ -180,7 +180,7 @@ int amba_device_register(struct amba_device *dev, struct resource *parent)
 
 	dev->dev.release = amba_device_release;
 	dev->dev.bus = &amba_bustype;
-	dev->res.name = dev->dev.name;
+	dev->res.name = dev->dev.bus_id;
 
 	ret = request_resource(parent, &dev->res);
 	if (ret == 0) {
@@ -200,14 +200,6 @@ int amba_device_register(struct amba_device *dev, struct resource *parent)
 		if (cid == 0xb105f00d)
 			dev->periphid = pid;
 
-		if (dev->periphid)
-			snprintf(dev->dev.name, sizeof(dev->dev.name),
-				 "AMBA PL%03X",
-				 dev->periphid & 0xfff);
-		else
-			strlcpy(dev->dev.name, "AMBA unknown",
-				sizeof(dev->dev.name));
-
 		ret = device_register(&dev->dev);
 		if (ret == 0) {
 			device_create_file(&dev->dev, &dev_attr_id);

arch/arm/common/platform.c

@@ -9,7 +9,7 @@ int __init platform_add_device(struct platform_device *dev)
 	for (i = 0; i < dev->num_resources; i++) {
 		struct resource *r = &dev->resource[i];
 
-		r->name = dev->dev.name;
+		r->name = dev->dev.bus_id;
 
 		if (r->flags & IORESOURCE_MEM &&
 		    request_resource(&iomem_resource, r)) {

arch/arm/common/sa1111.c

@@ -55,9 +55,6 @@ struct sa1111 {
 static struct sa1111 *g_sa1111;
 
 static struct sa1111_dev usb_dev = {
-	.dev = {
-		.name	= "Intel Corporation SA1111 [USB Controller]",
-	},
 	.skpcr_mask	= SKPCR_UCLKEN,
 	.devid		= SA1111_DEVID_USB,
 	.irq = {
@@ -71,9 +68,6 @@ static struct sa1111_dev usb_dev = {
 };
 
 static struct sa1111_dev sac_dev = {
-	.dev = {
-		.name	= "Intel Corporation SA1111 [Audio Controller]",
-	},
 	.skpcr_mask	= SKPCR_I2SCLKEN | SKPCR_L3CLKEN,
 	.devid		= SA1111_DEVID_SAC,
 	.irq = {
@@ -85,17 +79,11 @@ static struct sa1111_dev sac_dev = {
 };
 
 static struct sa1111_dev ssp_dev = {
-	.dev = {
-		.name	= "Intel Corporation SA1111 [SSP Controller]",
-	},
 	.skpcr_mask	= SKPCR_SCLKEN,
 	.devid		= SA1111_DEVID_SSP,
 };
 
 static struct sa1111_dev kbd_dev = {
-	.dev = {
-		.name	= "Intel Corporation SA1111 [PS2]",
-	},
 	.skpcr_mask	= SKPCR_PTCLKEN,
 	.devid		= SA1111_DEVID_PS2,
 	.irq = {
@@ -105,9 +93,6 @@ static struct sa1111_dev kbd_dev = {
 };
 
 static struct sa1111_dev mse_dev = {
-	.dev = {
-		.name	= "Intel Corporation SA1111 [PS2]",
-	},
 	.skpcr_mask	= SKPCR_PMCLKEN,
 	.devid		= SA1111_DEVID_PS2,
 	.irq = {
@@ -117,17 +102,11 @@ static struct sa1111_dev mse_dev = {
 };
 
 static struct sa1111_dev int_dev = {
-	.dev = {
-		.name	= "Intel Corporation SA1111 [Interrupt Controller]",
-	},
 	.skpcr_mask	= 0,
 	.devid		= SA1111_DEVID_INT,
 };
 
 static struct sa1111_dev pcmcia_dev = {
-	.dev = {
-		.name	= "Intel Corporation SA1111 [PCMCIA Controller]",
-	},
 	.skpcr_mask	= 0,
 	.devid		= SA1111_DEVID_PCMCIA,
 	.irq = {
@@ -570,7 +549,7 @@ sa1111_init_one_child(struct sa1111 *sachip, struct resource *parent,
 	sadev->dev.bus    = &sa1111_bus_type;
 	sadev->res.start  = sachip->phys + offset;
 	sadev->res.end    = sadev->res.start + 511;
-	sadev->res.name   = sadev->dev.name;
+	sadev->res.name   = sadev->dev.bus_id;
 	sadev->res.flags  = IORESOURCE_MEM;
 	sadev->mapbase    = sachip->base + offset;
 

arch/arm/kernel/ecard.c

@@ -811,7 +811,7 @@ static void ecard_proc_init(void)
 
 #define ec_set_resource(ec,nr,st,sz,flg)			\
 	do {							\
-		(ec)->resource[nr].name = ec->dev.name;		\
+		(ec)->resource[nr].name = ec->dev.bus_id;	\
 		(ec)->resource[nr].start = st;			\
 		(ec)->resource[nr].end = (st) + (sz) - 1;	\
 		(ec)->resource[nr].flags = flg;			\
@@ -893,6 +893,22 @@ static ssize_t ecard_show_resources(struct device *dev, char *buf)
 
 static DEVICE_ATTR(resource, S_IRUGO, ecard_show_resources, NULL);
 
+static ssize_t ecard_show_vendor(struct device *dev, char *buf)
+{
+	struct expansion_card *ec = ECARD_DEV(dev);
+	return sprintf(buf, "%u\n", ec->manufacturer);
+}
+
+static DEVICE_ATTR(vendor, S_IRUGO, ecard_show_vendor, NULL);
+
+static ssize_t ecard_show_device(struct device *dev, char *buf)
+{
+	struct expansion_card *ec = ECARD_DEV(dev);
+	return sprintf(buf, "%u\n", ec->product);
+}
+
+static DEVICE_ATTR(device, S_IRUGO, ecard_show_device, NULL);
+
 /*
  * Probe for an expansion card.
  *
@@ -962,8 +978,6 @@ ecard_probe(int slot, card_type_t type)
 		}
 
 	snprintf(ec->dev.bus_id, sizeof(ec->dev.bus_id), "ecard%d", slot);
-	snprintf(ec->dev.name, sizeof(ec->dev.name), "ecard %04x:%04x",
-		 ec->cid.manufacturer, ec->cid.product);
 	ec->dev.parent = NULL;
 	ec->dev.bus    = &ecard_bus_type;
 	ec->dev.dma_mask = &ec->dma_mask;
@@ -1000,6 +1014,8 @@ ecard_probe(int slot, card_type_t type)
 	device_create_file(&ec->dev, &dev_attr_dma);
 	device_create_file(&ec->dev, &dev_attr_irq);
 	device_create_file(&ec->dev, &dev_attr_resource);
+	device_create_file(&ec->dev, &dev_attr_vendor);
+	device_create_file(&ec->dev, &dev_attr_device);
 
 	return 0;
 

arch/arm/kernel/traps.c

@@ -150,11 +150,6 @@ static void dump_instr(struct pt_regs *regs)
 	set_fs(fs);
 }
 
-static void __dump_stack(struct task_struct *tsk, unsigned long sp)
-{
-	dump_mem("Stack: ", sp, 8192+(unsigned long)tsk->thread_info);
-}
-
 static void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk)
 {
 	unsigned int fp;
@@ -183,14 +178,12 @@ void dump_stack(void)
 #endif
 }
 
-/*
- * This is called from SysRq-T (show_task) to display the current call
- * trace for each process.  This version will also display the running
- * threads call trace (ie, us.)
- */
-void show_trace_task(struct task_struct *tsk)
+void show_stack(struct task_struct *tsk, unsigned long *sp)
 {
-	unsigned int fp;
+	unsigned long fp;
+
+	if (!tsk)
+		tsk = current;
 
 	if (tsk != current)
 		fp = thread_saved_fp(tsk);
@@ -222,7 +215,7 @@ NORET_TYPE void die(const char *str, struct pt_regs *regs, int err)
 		current->comm, current->pid, tsk->thread_info + 1);
 
 	if (!user_mode(regs) || in_interrupt()) {
-		__dump_stack(tsk, (unsigned long)(regs + 1));
+		dump_mem("Stack: ", (unsigned long)(regs + 1), 8192+(unsigned long)tsk->thread_info);
 		dump_backtrace(regs, tsk);
 		dump_instr(regs);
 	}

arch/arm/mach-integrator/Kconfig

+menu "Integrator Options"
+	depends on ARCH_INTEGRATOR
+
+config INTEGRATOR_IMPD1
+	tristate "Include support for Integrator/IM-PD1"
+	help
+	  The IM-PD1 is an add-on logic module for the Integrator which
+	  allows ARM(R) Ltd PrimeCells to be developed and evaluated.
+	  The IM-PD1 can be found on the Integrator/PP2 platform.
+
+	  If you want to compile this as a module (=code which can be
+	  inserted into and removed from the running kernel), say M
+	  here and read <file:Documentation/modules.txt>.  The module
+	  will be called impd1.
+
+endmenu

arch/arm/mach-integrator/Makefile

@@ -9,3 +9,4 @@ obj-y			:= core.o time.o
 obj-$(CONFIG_LEDS)	+= leds.o
 obj-$(CONFIG_PCI)	+= pci_v3.o pci.o
 obj-$(CONFIG_CPU_FREQ_INTEGRATOR)	+= cpu.o
+obj-$(CONFIG_INTEGRATOR_IMPD1)		+= impd1.o

arch/arm/mach-integrator/impd1.c

+/*
+ *  linux/arch/arm/mach-integrator/impd1.c
+ *
+ *  Copyright (C) 2003 Deep Blue Solutions Ltd, All Rights Reserved.
+ *
+ * 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 file provides the core support for the IM-PD1 module.
+ *
+ * Module / boot parameters.
+ *   id=n   impd1.id=n - set the logic module position in stack to 'n'
+ */
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/errno.h>
+
+#include <asm/io.h>
+#include <asm/hardware/icst525.h>
+#include <asm/hardware/amba.h>
+#include <asm/arch/impd1.h>
+#include <asm/sizes.h>
+
+static int module_id;
+
+module_param_named(lmid, module_id, int, 0);
+MODULE_PARM_DESC(lmid, "logic module stack position");
+
+#define ROM_OFFSET	0x0fffff00
+#define ROM_SIZE	256
+
+struct impd1_module {
+	void	*base;
+};
+
+static const struct icst525_params impd1_vco_params = {
+	.ref		= 24000,	/* 24 MHz */
+	.vco_max	= 200000,	/* 200 MHz */
+	.vd_min		= 12,
+	.vd_max		= 519,
+	.rd_min		= 3,
+	.rd_max		= 120,
+};
+
+void impd1_set_vco(struct device *dev, int vconr, unsigned long period)
+{
+	struct impd1_module *impd1 = dev_get_drvdata(dev);
+	struct icst525_vco vco;
+	u32 val;
+
+	vco = icst525_ps_to_vco(&impd1_vco_params, period);
+
+	pr_debug("Guessed VCO reg params: S=%d R=%d V=%d\n",
+		vco.s, vco.r, vco.v);
+
+	val = vco.v | (vco.r << 9) | (vco.s << 16);
+
+	writel(0xa05f, impd1->base + IMPD1_LOCK);
+	switch (vconr) {
+	case 1:
+		writel(val, impd1->base + IMPD1_OSC1);
+		break;
+	case 2:
+		writel(val, impd1->base + IMPD1_OSC2);
+		break;
+	}
+	writel(0, impd1->base + IMPD1_LOCK);
+
+#if DEBUG
+	vco.v = val & 0x1ff;
+	vco.r = (val >> 9) & 0x7f;
+	vco.s = (val >> 16) & 7;
+
+	pr_debug("IM-PD1: VCO%d clock is %ld kHz\n",
+		 vconr, icst525_khz(&impd1_vco_params, vco));
+#endif
+}
+
+EXPORT_SYMBOL(impd1_set_vco);
+
+void impd1_tweak_control(struct device *dev, u32 mask, u32 val)
+{
+	struct impd1_module *impd1 = dev_get_drvdata(dev);
+	u32 cur;
+
+	val &= mask;
+	cur = readl(impd1->base + IMPD1_CTRL) & ~mask;
+	writel(cur | val, impd1->base + IMPD1_CTRL);
+}
+
+EXPORT_SYMBOL(impd1_tweak_control);
+
+struct impd1_device {
+	unsigned long	offset;
+	unsigned int	irq[2];
+	unsigned int	id;
+};
+
+static struct impd1_device impd1_devs[] = {
+	{
+		.offset	= 0x03000000,
+		.id	= 0x00041190,
+	}, {
+		.offset	= 0x00100000,
+		.irq	= { 1 },
+		.id	= 0x00141011,
+	}, {
+		.offset	= 0x00200000,
+		.irq	= { 2 },
+		.id	= 0x00141011,
+	}, {
+		.offset	= 0x00300000,
+		.irq	= { 3 },
+		.id	= 0x00041022,
+	}, {
+		.offset	= 0x00400000,
+		.irq	= { 4 },
+		.id	= 0x00041061,
+	}, {
+		.offset	= 0x00500000,
+		.irq	= { 5 },
+		.id	= 0x00041061,
+	}, {
+		.offset	= 0x00600000,
+		.irq	= { 6 },
+		.id	= 0x00041130,
+	}, {
+		.offset	= 0x00700000,
+		.irq	= { 7, 8 },
+		.id	= 0x00041181,
+	}, {
+		.offset	= 0x00800000,
+		.irq	= { 9 },
+		.id	= 0x00041041,
+	}, {
+		.offset	= 0x01000000,
+		.irq	= { 11 },
+		.id	= 0x00041110,
+	}
+};
+
+static int impd1_probe(struct device *dev)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct resource *res = &pdev->resource[0];
+	struct impd1_module *impd1;
+	int i, ret;
+
+	if (pdev->id != module_id)
+		return -EINVAL;
+
+	if (!request_mem_region(res->start, SZ_4K, "LM registers"))
+		return -EBUSY;
+
+	impd1 = kmalloc(sizeof(struct impd1_module), GFP_KERNEL);
+	if (!impd1) {
+		ret = -ENOMEM;
+		goto release_lm;
+	}
+	memset(impd1, 0, sizeof(struct impd1_module));
+
+	impd1->base = ioremap(res->start, SZ_4K);
+	if (!impd1->base) {
+		ret = -ENOMEM;
+		goto free_impd1;
+	}
+
+	dev_set_drvdata(dev, impd1);
+
+	printk("IM-PD1 found at 0x%08lx\n", res->start);
+
+	for (i = 0; i < ARRAY_SIZE(impd1_devs); i++) {
+		struct impd1_device *idev = impd1_devs + i;
+		struct amba_device *d;
+		unsigned long pc_base;
+
+		pc_base = res->start + idev->offset;
+
+		d = kmalloc(sizeof(struct amba_device), GFP_KERNEL);
+		if (!d)
+			continue;
+
+		memset(d, 0, sizeof(struct amba_device));
+
+		snprintf(d->dev.bus_id, sizeof(d->dev.bus_id),
+			 "lm%x:%5.5x", pdev->id, idev->offset >> 12);
+
+		d->dev.parent	= &pdev->dev;
+		d->res.start	= res->start + idev->offset;
+		d->res.end	= d->res.start + SZ_4K - 1;
+		d->res.flags	= IORESOURCE_MEM;
+		d->irq		= pdev->resource[1].start;
+		d->periphid	= idev->id;
+
+		ret = amba_device_register(d, res);
+		if (ret) {
+			printk("unable to register device %s: %d\n",
+				d->dev.bus_id, ret);
+			kfree(d);
+		}
+	}
+
+	return 0;
+
+ free_impd1:
+	if (impd1 && impd1->base)
+		iounmap(impd1->base);
+	if (impd1)
+		kfree(impd1);
+ release_lm:
+	release_mem_region(res->start, SZ_4K);
+	return ret;
+}
+
+static int impd1_remove(struct device *dev)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct resource *res = &pdev->resource[0];
+	struct impd1_module *impd1 = dev_get_drvdata(dev);
+	struct list_head *l, *n;
+
+	list_for_each_safe(l, n, &dev->children) {
+		struct device *d = list_to_dev(l);
+
+		device_unregister(d);
+	}
+
+	dev_set_drvdata(dev, NULL);
+
+	iounmap(impd1->base);
+	kfree(impd1);
+	release_mem_region(res->start, SZ_4K);
+
+	return 0;
+}
+
+static struct device_driver impd1_driver = {
+	.name		= "lm",
+	.bus		= &platform_bus_type,
+	.probe		= impd1_probe,
+	.remove		= impd1_remove,
+};
+
+static int __init impd1_init(void)
+{
+	return driver_register(&impd1_driver);
+}
+
+static void __exit impd1_exit(void)
+{
+	driver_unregister(&impd1_driver);
+}
+
+module_init(impd1_init);
+module_exit(impd1_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Integrator/IM-PD1 logic module core driver");
+MODULE_AUTHOR("Deep Blue Solutions Ltd");

arch/arm/mach-pxa/lubbock.c

@@ -104,9 +104,6 @@ static struct resource sa1111_resources[] = {
 static struct platform_device sa1111_device = {
 	.name		= "sa1111",
 	.id		= 0,
-	.dev		= {
-		.name	= "Intel Corporation SA1111",
-	},
 	.num_resources	= ARRAY_SIZE(sa1111_resources),
 	.resource	= sa1111_resources,
 };

arch/arm/mach-sa1100/adsbitsy.c

@@ -46,7 +46,6 @@ static struct platform_device sa1111_device = {
 	.name		= "sa1111",
 	.id		= 0,
 	.dev		= {
-		.name	= "Intel Corporation SA1111",
 		.dma_mask = &sa1111_dmamask,
 	},
 	.num_resources	= ARRAY_SIZE(sa1111_resources),

arch/arm/mach-sa1100/badge4.c

@@ -54,7 +54,6 @@ static struct platform_device sa1111_device = {
 	.name		= "sa1111",
 	.id		= 0,
 	.dev		= {
-		.name	= "Intel Corporation SA1111",
 		.dma_mask = &sa1111_dmamask;
 	},
 	.num_resources	= ARRAY_SIZE(sa1111_resources),

arch/arm/mach-sa1100/cpu-sa1110.c

@@ -282,19 +282,19 @@ static int sa1110_target(struct cpufreq_policy *policy,
 	local_irq_save(flags);
 	asm("mcr p15, 0, %0, c7, c10, 4" : : "r" (0));
 	udelay(10);
-	__asm__ __volatile__("
-		b	2f
-		.align	5
-1:		str	%3, [%1, #0]		@ MDCNFG
-		str	%4, [%1, #28]		@ MDREFR
-		str	%5, [%1, #4]		@ MDCAS0
-		str	%6, [%1, #8]		@ MDCAS1
-		str	%7, [%1, #12]		@ MDCAS2
-		str	%8, [%2, #0]		@ PPCR
-		ldr	%0, [%1, #0]
-		b	3f
-2:		b	1b
-3:		nop
+	__asm__ __volatile__("					\n\
+		b	2f					\n\
+		.align	5					\n\
+1:		str	%3, [%1, #0]		@ MDCNFG	\n\
+		str	%4, [%1, #28]		@ MDREFR	\n\
+		str	%5, [%1, #4]		@ MDCAS0	\n\
+		str	%6, [%1, #8]		@ MDCAS1	\n\
+		str	%7, [%1, #12]		@ MDCAS2	\n\
+		str	%8, [%2, #0]		@ PPCR		\n\
+		ldr	%0, [%1, #0]				\n\
+		b	3f					\n\
+2:		b	1b					\n\
+3:		nop						\n\
 		nop"
 		: "=&r" (unused)
 		: "r" (&MDCNFG), "r" (&PPCR), "0" (sd.mdcnfg),

arch/arm/mach-sa1100/generic.c

@@ -144,7 +144,6 @@ static struct platform_device sa11x0udc_device = {
 	.name		= "sa11x0-udc",
 	.id		= 0,
 	.dev		= {
-		.name	= "Intel Corporation SA11x0 [UDC]",
 		.dma_mask = &sa11x0udc_dma_mask,
 	},
 	.num_resources	= ARRAY_SIZE(sa11x0udc_resources),
@@ -162,9 +161,6 @@ static struct resource sa11x0mcp_resources[] = {
 static struct platform_device sa11x0mcp_device = {
 	.name		= "sa11x0-mcp",
 	.id		= 0,
-	.dev = {
-		.name	= "Intel Corporation SA11x0 [MCP]",
-	},
 	.num_resources	= ARRAY_SIZE(sa11x0mcp_resources),
 	.resource	= sa11x0mcp_resources,
 };
@@ -183,7 +179,6 @@ static struct platform_device sa11x0ssp_device = {
 	.name		= "sa11x0-ssp",
 	.id		= 0,
 	.dev = {
-		.name	= "Intel Corporation SA11x0 [SSP]",
 		.dma_mask = &sa11x0ssp_dma_mask,
 	},
 	.num_resources	= ARRAY_SIZE(sa11x0ssp_resources),
@@ -206,9 +201,6 @@ static struct resource sa11x0fb_resources[] = {
 static struct platform_device sa11x0fb_device = {
 	.name		= "sa11x0-fb",
 	.id		= 0,
-	.dev		= {
-		.name	= "Intel Corporation SA11x0 [LCD]",
-	},
 	.num_resources	= ARRAY_SIZE(sa11x0fb_resources),
 	.resource	= sa11x0fb_resources,
 };
@@ -216,9 +208,6 @@ static struct platform_device sa11x0fb_device = {
 static struct platform_device sa11x0pcmcia_device = {
 	.name		= "sa11x0-pcmcia",
 	.id		= 0,
-	.dev		= {
-		.name	= "Intel Corporation SA11x0 [PCMCIA]",
-	},
 };
 
 static struct platform_device *sa11x0_devices[] __initdata = {

arch/arm/mach-sa1100/graphicsmaster.c

@@ -43,7 +43,6 @@ static struct platform_device sa1111_device = {
 	.name		= "sa1111",
 	.id		= 0,
 	.dev		= {
-		.name	= "Intel Corporation SA1111",
 		.dma_mask = &sa1111_dmamask,
 	},
 	.num_resources	= ARRAY_SIZE(sa1111_resources),

arch/arm/mach-sa1100/jornada720.c

@@ -43,7 +43,6 @@ static struct platform_device sa1111_device = {
 	.name		= "sa1111",
 	.id		= 0,
 	.dev		= {
-		.name	= "Intel Corporation SA1111",
 		.dma_mask = &sa1111_dmamask,
 	},
 	.num_resources	= ARRAY_SIZE(sa1111_resources),

arch/arm/mach-sa1100/neponset.c

@@ -227,9 +227,6 @@ static struct resource neponset_resources[] = {
 static struct platform_device neponset_device = {
 	.name		= "neponset",
 	.id		= 0,
-	.dev = {
-		.name	= "Neponset",
-	},
 	.num_resources	= ARRAY_SIZE(neponset_resources),
 	.resource	= neponset_resources,
 };
@@ -253,7 +250,6 @@ static struct platform_device sa1111_device = {
 	.name		= "sa1111",
 	.id		= 0,
 	.dev		= {
-		.name	= "Intel Corporation SA1111",
 		.dma_mask = &sa1111_dmamask,
 	},
 	.num_resources	= ARRAY_SIZE(sa1111_resources),

arch/arm/mach-sa1100/pfs168.c

@@ -38,7 +38,6 @@ static struct platform_device sa1111_device = {
 	.name		= "sa1111",
 	.id		= 0,
 	.dev		= {
-		.name	= "Intel Corporation SA1111",
 		.dma_mask = &sa1111_dmamask,
 	},
 	.num_resources	= ARRAY_SIZE(sa1111_resources),

arch/arm/mach-sa1100/system3.c

@@ -392,7 +392,6 @@ static struct platform_device sa1111_device = {
 	.name		= "sa1111",
 	.id		= 0,
 	.dev		= {
-		.name	= "Intel Corporation SA1111",
 		.dma_mask = &sa1111_dmamask,
 	},
 	.num_resources	= ARRAY_SIZE(sa1111_resources),

arch/arm/mach-sa1100/xp860.c

@@ -44,7 +44,6 @@ static struct platform_device sa1111_device = {
 	.name		= "sa1111",
 	.id		= 0,
 	.dev		= {
-		.name	= "Intel Corporation SA1111",
 		.dma_mask = &sa1111_dmamask,
 	},
 	.num_resources	= ARRAY_SIZE(sa1111_resources),

arch/arm/mm/mm-armv.c

@@ -305,9 +305,35 @@ static struct mem_types mem_types[] __initdata = {
  */
 static void __init build_mem_type_table(void)
 {
+	unsigned int cr = get_cr();
 	int cpu_arch = cpu_architecture();
 	const char *policy;
 
+	/*
+	 * ARMv6 and above have extended page tables.
+	 */
+	if (cpu_arch >= CPU_ARCH_ARMv6 && (cr & CR_XP)) {
+		/*
+		 * bit 4 becomes XN which we must clear for the
+		 * kernel memory mapping.
+		 */
+		mem_types[MT_MEMORY].prot_sect &= ~PMD_BIT4;
+		/*
+		 * Mark cache clean areas read only from SVC mode
+		 * and no access from userspace.
+		 */
+		mem_types[MT_MINICLEAN].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
+		mem_types[MT_CACHECLEAN].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
+	}
+
+	/*
+	 * ARMv6 can map the vectors as write-through.
+	 */
+	if (cpu_arch >= CPU_ARCH_ARMv6)
+		mem_types[MT_VECTORS].prot_pte |= PTE_CACHEABLE;
+	else
+		mem_types[MT_VECTORS].prot_pte |= PTE_BUFFERABLE|PTE_CACHEABLE;
+
 	/*
 	 * ARMv5 and higher can use ECC memory.
 	 */

arch/arm/mm/mmu.c

+/*
+ *  linux/arch/arm/mm/mmu.c
+ *
+ *  Copyright (C) 2002-2003 Deep Blue Solutions Ltd, all rights reserved.
+ *
+ * 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/init.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+
+#include <asm/mmu_context.h>
+#include <asm/pgalloc.h>
+#include <asm/tlbflush.h>
+
+unsigned int cpu_last_asid = { 1 << ASID_BITS };
+
+/*
+ * We fork()ed a process, and we need a new context for the child
+ * to run in.  We reserve version 0 for initial tasks so we will
+ * always allocate an ASID.
+ */
+void __init_new_context(struct task_struct *tsk, struct mm_struct *mm)
+{
+	mm->context.id = 0;
+}
+
+void __new_context(struct mm_struct *mm)
+{
+	unsigned int asid;
+
+	asid = ++cpu_last_asid;
+	if (asid == 0)
+		asid = cpu_last_asid = 1 << ASID_BITS;
+
+	/*
+	 * If we've used up all our ASIDs, we need
+	 * to start a new version and flush the TLB.
+	 */
+	if ((asid & ~ASID_MASK) == 0)
+		flush_tlb_all();
+
+	mm->context.id = asid;
+}

include/asm-arm/arch-integrator/impd1.h

+#define IMPD1_OSC1	0x00
+#define IMPD1_OSC2	0x04
+#define IMPD1_LOCK	0x08
+#define IMPD1_LEDS	0x0c
+#define IMPD1_INT	0x10
+#define IMPD1_SW	0x14
+#define IMPD1_CTRL	0x18
+
+#define IMPD1_CTRL_DISP_LCD	(0 << 0)
+#define IMPD1_CTRL_DISP_VGA	(1 << 0)
+#define IMPD1_CTRL_DISP_LCD1	(2 << 0)
+#define IMPD1_CTRL_DISP_ENABLE	(1 << 2)
+#define IMPD1_CTRL_DISP_MASK	(7 << 0)
+
+struct device;
+
+void impd1_set_vco(struct device *dev, int vconr, unsigned long period);
+void impd1_tweak_control(struct device *dev, u32 mask, u32 val);
+

include/asm-arm/mmu.h

 #ifndef __ARM_MMU_H
 #define __ARM_MMU_H
 
-/*
- * The ARM doesn't have a mmu context
- */
-typedef struct { } mm_context_t;
+#include <linux/config.h>
+
+typedef struct {
+#if __LINUX_ARM_ARCH__ >= 6
+	unsigned int id;
+#endif
+} mm_context_t;
+
+#if __LINUX_ARM_ARCH__ >= 6
+#define ASID(mm)	((mm)->context.id & 255)
+#else
+#define ASID(mm)	(0)
+#endif
 
 #endif

include/asm-arm/mmu_context.h

@@ -15,7 +15,45 @@
 
 #include <asm/proc-fns.h>
 
+#if __LINUX_ARM_ARCH__ >= 6
+
+/*
+ * On ARMv6, we have the following structure in the Context ID:
+ *
+ * 31                         7          0
+ * +-------------------------+-----------+
+ * |      process ID         |   ASID    |
+ * +-------------------------+-----------+
+ * |              context ID             |
+ * +-------------------------------------+
+ *
+ * The ASID is used to tag entries in the CPU caches and TLBs.
+ * The context ID is used by debuggers and trace logic, and
+ * should be unique within all running processes.
+ */
+#define ASID_BITS	8
+#define ASID_MASK	((~0) << ASID_BITS)
+
+extern unsigned int cpu_last_asid;
+
+void __init_new_context(struct task_struct *tsk, struct mm_struct *mm);
+void __new_context(struct mm_struct *mm);
+
+static inline void check_context(struct mm_struct *mm)
+{
+	if (unlikely((mm->context.id ^ cpu_last_asid) >> ASID_BITS))
+		__new_context(mm);
+}
+
+#define init_new_context(tsk,mm)	(__init_new_context(tsk,mm),0)
+
+#else
+
+#define check_context(mm)		do { } while (0)
 #define init_new_context(tsk,mm)	0
+
+#endif
+
 #define destroy_context(mm)		do { } while(0)
 
 /*
@@ -43,6 +81,7 @@ switch_mm(struct mm_struct *prev, struct mm_struct *next,
 	  struct task_struct *tsk)
 {
 	if (prev != next) {
+		check_context(next);
 		cpu_switch_mm(next->pgd, next);
 	}
 }
@@ -51,6 +90,7 @@ switch_mm(struct mm_struct *prev, struct mm_struct *next,
 
 static inline void activate_mm(struct mm_struct *prev, struct mm_struct *next)
 {
+	check_context(next);
 	cpu_switch_mm(next->pgd, next);
 }
 

include/asm-arm/proc-armv/pgtable.h

@@ -49,6 +49,9 @@
 #define PMD_SECT_AP_WRITE	(1 << 10)
 #define PMD_SECT_AP_READ	(1 << 11)
 #define PMD_SECT_TEX(x)		((x) << 12)	/* v5 */
+#define PMD_SECT_APX		(1 << 15)	/* v6 */
+#define PMD_SECT_S		(1 << 16)	/* v6 */
+#define PMD_SECT_nG		(1 << 17)	/* v6 */
 
 #define PMD_SECT_UNCACHED	(0)
 #define PMD_SECT_BUFFERED	(PMD_SECT_BUFFERABLE)

include/asm-arm/proc-armv/system.h

@@ -41,6 +41,14 @@
 #define CR_I	(1 << 12)	/* Icache enable			*/
 #define CR_V	(1 << 13)	/* Vectors relocated to 0xffff0000	*/
 #define CR_RR	(1 << 14)	/* Round Robin cache replacement	*/
+#define CR_L4	(1 << 15)	/* LDR pc can set T bit			*/
+#define CR_DT	(1 << 16)
+#define CR_IT	(1 << 18)
+#define CR_ST	(1 << 19)
+#define CR_FI	(1 << 21)
+#define CR_U	(1 << 22)	/* Unaligned access operation		*/
+#define CR_XP	(1 << 23)	/* Extended page tables			*/
+#define CR_VE	(1 << 24)	/* Vectored interrupts			*/
 
 extern unsigned long cr_no_alignment;	/* defined in entry-armv.S */
 extern unsigned long cr_alignment;	/* defined in entry-armv.S */

include/asm-arm/proc-armv/tlbflush.h

@@ -14,11 +14,21 @@
 #define TLB_V4_U_PAGE	(1 << 1)
 #define TLB_V4_D_PAGE	(1 << 2)
 #define TLB_V4_I_PAGE	(1 << 3)
+#define TLB_V6_U_PAGE	(1 << 4)
+#define TLB_V6_D_PAGE	(1 << 5)
+#define TLB_V6_I_PAGE	(1 << 6)
 
 #define TLB_V3_FULL	(1 << 8)
 #define TLB_V4_U_FULL	(1 << 9)
 #define TLB_V4_D_FULL	(1 << 10)
 #define TLB_V4_I_FULL	(1 << 11)
+#define TLB_V6_U_FULL	(1 << 12)
+#define TLB_V6_D_FULL	(1 << 13)
+#define TLB_V6_I_FULL	(1 << 14)
+
+#define TLB_V6_U_ASID	(1 << 16)
+#define TLB_V6_D_ASID	(1 << 17)
+#define TLB_V6_I_ASID	(1 << 18)
 
 #define TLB_DCLEAN	(1 << 30)
 #define TLB_WB		(1 << 31)
@@ -32,6 +42,7 @@
  *	  v4    - ARMv4 without write buffer
  *	  v4wb  - ARMv4 with write buffer without I TLB flush entry instruction
  *	  v4wbi - ARMv4 with write buffer with I TLB flush entry instruction
+ *	  v6wbi - ARMv6 with write buffer with I TLB flush entry instruction
  */
 #undef _TLB
 #undef MULTI_TLB
@@ -102,6 +113,24 @@
 # define v4wb_always_flags	(-1UL)
 #endif
 
+#define v6wbi_tlb_flags (TLB_WB | TLB_DCLEAN | \
+			 TLB_V6_I_FULL | TLB_V6_D_FULL | \
+			 TLB_V6_I_PAGE | TLB_V6_D_PAGE | \
+			 TLB_V6_I_ASID | TLB_V6_D_ASID)
+
+#if defined(CONFIG_CPU_V6)
+# define v6wbi_possible_flags	v6wbi_tlb_flags
+# define v6wbi_always_flags	v6wbi_tlb_flags
+# ifdef _TLB
+#  define MULTI_TLB 1
+# else
+#  define _TLB v6wbi
+# endif
+#else
+# define v6wbi_possible_flags	0
+# define v6wbi_always_flags	(-1UL)
+#endif
+
 #ifndef _TLB
 #error Unknown TLB model
 #endif
@@ -194,12 +223,14 @@ extern struct cpu_tlb_fns cpu_tlb;
 #define possible_tlb_flags	(v3_possible_flags | \
 				 v4_possible_flags | \
 				 v4wbi_possible_flags | \
-				 v4wb_possible_flags)
+				 v4wb_possible_flags | \
+				 v6wbi_possible_flags)
 
 #define always_tlb_flags	(v3_always_flags & \
 				 v4_always_flags & \
 				 v4wbi_always_flags & \
-				 v4wb_always_flags)
+				 v4wb_always_flags & \
+				 v6wbi_always_flags)
 
 #define tlb_flag(f)	((always_tlb_flags & (f)) || (__tlb_flag & possible_tlb_flags & (f)))
 
@@ -213,17 +244,18 @@ static inline void flush_tlb_all(void)
 
 	if (tlb_flag(TLB_V3_FULL))
 		asm("mcr%? p15, 0, %0, c6, c0, 0" : : "r" (zero));
-	if (tlb_flag(TLB_V4_U_FULL))
+	if (tlb_flag(TLB_V4_U_FULL | TLB_V6_U_FULL))
 		asm("mcr%? p15, 0, %0, c8, c7, 0" : : "r" (zero));
-	if (tlb_flag(TLB_V4_D_FULL))
+	if (tlb_flag(TLB_V4_D_FULL | TLB_V6_D_FULL))
 		asm("mcr%? p15, 0, %0, c8, c6, 0" : : "r" (zero));
-	if (tlb_flag(TLB_V4_I_FULL))
+	if (tlb_flag(TLB_V4_I_FULL | TLB_V6_I_FULL))
 		asm("mcr%? p15, 0, %0, c8, c5, 0" : : "r" (zero));
 }
 
 static inline void flush_tlb_mm(struct mm_struct *mm)
 {
 	const int zero = 0;
+	const int asid = ASID(mm);
 	const unsigned int __tlb_flag = __cpu_tlb_flags;
 
 	if (tlb_flag(TLB_WB))
@@ -239,6 +271,13 @@ static inline void flush_tlb_mm(struct mm_struct *mm)
 		if (tlb_flag(TLB_V4_I_FULL))
 			asm("mcr%? p15, 0, %0, c8, c5, 0" : : "r" (zero));
 	}
+
+	if (tlb_flag(TLB_V6_U_ASID))
+		asm("mcr%? p15, 0, %0, c8, c7, 2" : : "r" (asid));
+	if (tlb_flag(TLB_V6_D_ASID))
+		asm("mcr%? p15, 0, %0, c8, c6, 2" : : "r" (asid));
+	if (tlb_flag(TLB_V6_I_ASID))
+		asm("mcr%? p15, 0, %0, c8, c5, 2" : : "r" (asid));
 }
 
 static inline void
@@ -247,7 +286,7 @@ flush_tlb_page(struct vm_area_struct *vma, unsigned long uaddr)
 	const int zero = 0;
 	const unsigned int __tlb_flag = __cpu_tlb_flags;
 
-	uaddr &= PAGE_MASK;
+	uaddr = (uaddr & PAGE_MASK) | ASID(vma->vm_mm);
 
 	if (tlb_flag(TLB_WB))
 		asm("mcr%? p15, 0, %0, c7, c10, 4" : : "r" (zero));
@@ -264,6 +303,13 @@ flush_tlb_page(struct vm_area_struct *vma, unsigned long uaddr)
 		if (!tlb_flag(TLB_V4_I_PAGE) && tlb_flag(TLB_V4_I_FULL))
 			asm("mcr%? p15, 0, %0, c8, c5, 0" : : "r" (zero));
 	}
+
+	if (tlb_flag(TLB_V6_U_PAGE))
+		asm("mcr%? p15, 0, %0, c8, c7, 1" : : "r" (uaddr));
+	if (tlb_flag(TLB_V6_D_PAGE))
+		asm("mcr%? p15, 0, %0, c8, c6, 1" : : "r" (uaddr));
+	if (tlb_flag(TLB_V6_I_PAGE))
+		asm("mcr%? p15, 0, %0, c8, c5, 1" : : "r" (uaddr));
 }
 
 static inline void flush_tlb_kernel_page(unsigned long kaddr)
@@ -286,6 +332,13 @@ static inline void flush_tlb_kernel_page(unsigned long kaddr)
 		asm("mcr%? p15, 0, %0, c8, c5, 1" : : "r" (kaddr));
 	if (!tlb_flag(TLB_V4_I_PAGE) && tlb_flag(TLB_V4_I_FULL))
 		asm("mcr%? p15, 0, %0, c8, c5, 0" : : "r" (zero));
+
+	if (tlb_flag(TLB_V6_U_PAGE))
+		asm("mcr%? p15, 0, %0, c8, c7, 1" : : "r" (kaddr));
+	if (tlb_flag(TLB_V6_D_PAGE))
+		asm("mcr%? p15, 0, %0, c8, c6, 1" : : "r" (kaddr));
+	if (tlb_flag(TLB_V6_I_PAGE))
+		asm("mcr%? p15, 0, %0, c8, c5, 1" : : "r" (kaddr));
 }
 
 /*

include/asm-arm/system.h

@@ -41,6 +41,7 @@ extern asmlinkage void __backtrace(void);
 #define CPU_ARCH_ARMv5		4
 #define CPU_ARCH_ARMv5T		5
 #define CPU_ARCH_ARMv5TE	6
+#define CPU_ARCH_ARMv6		7
 
 extern int cpu_architecture(void);