Merge branch 'x86/urgent' into x86/xen

Conflicts:
	arch/frv/include/asm/pgtable.h
	arch/x86/include/asm/required-features.h
	arch/x86/xen/mmu.c

Merge reason: x86/xen was on a .29 base still, move it to a fresher
              branch and pick up Xen fixes as well, plus resolve
              conflicts

Signed-off-by: Ingo Molnar <mingo@elte.hu>

11 files changed, 76 insertions, 157 deletions

diff --git a/arch/arm/mach-omap2/board-h4.c b/arch/arm/mach-omap2/board-h4.c
index a0267a9ab46..e7d017cdc43 100644
--- a/arch/arm/mach-omap2/board-h4.c
+++ b/arch/arm/mach-omap2/board-h4.c
@@ -33,10 +33,8 @@
 
 #include <mach/control.h>
 #include <mach/gpio.h>
-#include <mach/gpioexpander.h>
 #include <mach/mux.h>
 #include <mach/usb.h>
-#include <mach/irda.h>
 #include <mach/board.h>
 #include <mach/common.h>
 #include <mach/keypad.h>
@@ -138,98 +136,6 @@ static struct platform_device h4_flash_device = {
 	.resource	= &h4_flash_resource,
 };
 
-/* Select between the IrDA and aGPS module
- */
-static int h4_select_irda(struct device *dev, int state)
-{
-	unsigned char expa;
-	int err = 0;
-
-	if ((err = read_gpio_expa(&expa, 0x21))) {
-		printk(KERN_ERR "Error reading from I/O expander\n");
-		return err;
-	}
-
-	/* 'P6' enable/disable IRDA_TX and IRDA_RX */
-	if (state & IR_SEL) {	/* IrDa */
-		if ((err = write_gpio_expa(expa | 0x01, 0x21))) {
-			printk(KERN_ERR "Error writing to I/O expander\n");
-			return err;
-		}
-	} else {
-		if ((err = write_gpio_expa(expa & ~0x01, 0x21))) {
-			printk(KERN_ERR "Error writing to I/O expander\n");
-			return err;
-		}
-	}
-	return err;
-}
-
-static void set_trans_mode(struct work_struct *work)
-{
-	struct omap_irda_config *irda_config =
-		container_of(work, struct omap_irda_config, gpio_expa.work);
-	int mode = irda_config->mode;
-	unsigned char expa;
-	int err = 0;
-
-	if ((err = read_gpio_expa(&expa, 0x20)) != 0) {
-		printk(KERN_ERR "Error reading from I/O expander\n");
-	}
-
-	expa &= ~0x01;
-
-	if (!(mode & IR_SIRMODE)) { /* MIR/FIR */
-		expa |= 0x01;
-	}
-
-	if ((err = write_gpio_expa(expa, 0x20)) != 0) {
-		printk(KERN_ERR "Error writing to I/O expander\n");
-	}
-}
-
-static int h4_transceiver_mode(struct device *dev, int mode)
-{
-	struct omap_irda_config *irda_config = dev->platform_data;
-
-	irda_config->mode = mode;
-	cancel_delayed_work(&irda_config->gpio_expa);
-	PREPARE_DELAYED_WORK(&irda_config->gpio_expa, set_trans_mode);
-	schedule_delayed_work(&irda_config->gpio_expa, 0);
-
-	return 0;
-}
-
-static struct omap_irda_config h4_irda_data = {
-	.transceiver_cap	= IR_SIRMODE | IR_MIRMODE | IR_FIRMODE,
-	.transceiver_mode	= h4_transceiver_mode,
-	.select_irda	 	= h4_select_irda,
-	.rx_channel		= OMAP24XX_DMA_UART3_RX,
-	.tx_channel		= OMAP24XX_DMA_UART3_TX,
-	.dest_start		= OMAP_UART3_BASE,
-	.src_start		= OMAP_UART3_BASE,
-	.tx_trigger		= OMAP24XX_DMA_UART3_TX,
-	.rx_trigger		= OMAP24XX_DMA_UART3_RX,
-};
-
-static struct resource h4_irda_resources[] = {
-	[0] = {
-		.start	= INT_24XX_UART3_IRQ,
-		.end	= INT_24XX_UART3_IRQ,
-		.flags	= IORESOURCE_IRQ,
-	},
-};
-
-static struct platform_device h4_irda_device = {
-	.name		= "omapirda",
-	.id		= -1,
-	.dev		= {
-		.platform_data	= &h4_irda_data,
-	},
-	.num_resources	= 1,
-	.resource	= h4_irda_resources,
-};
-
 static struct omap_kp_platform_data h4_kp_data = {
 	.rows		= 6,
 	.cols		= 7,
@@ -255,7 +161,6 @@ static struct platform_device h4_lcd_device = {
 
 static struct platform_device *h4_devices[] __initdata = {
 	&h4_flash_device,
-	&h4_irda_device,
 	&h4_kp_device,
 	&h4_lcd_device,
 };
diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c
index 744740ae1b9..3a7a29d1f9a 100644
--- a/arch/arm/mach-omap2/board-omap3beagle.c
+++ b/arch/arm/mach-omap2/board-omap3beagle.c
@@ -42,6 +42,7 @@
 #include <mach/nand.h>
 #include <mach/mux.h>
 #include <mach/usb.h>
+#include <mach/timer-gp.h>
 
 #include "mmc-twl4030.h"
 
@@ -186,6 +187,9 @@ static void __init omap3_beagle_init_irq(void)
 {
 	omap2_init_common_hw(NULL);
 	omap_init_irq();
+#ifdef CONFIG_OMAP_32K_TIMER
+	omap2_gp_clockevent_set_gptimer(12);
+#endif
 	omap_gpio_init();
 }
 
diff --git a/arch/arm/mach-omap2/board-rx51.c b/arch/arm/mach-omap2/board-rx51.c
index 3a0daac6c83..374ff63c3eb 100644
--- a/arch/arm/mach-omap2/board-rx51.c
+++ b/arch/arm/mach-omap2/board-rx51.c
@@ -15,7 +15,6 @@
 #include <linux/err.h>
 #include <linux/clk.h>
 #include <linux/io.h>
-#include <linux/delay.h>
 #include <linux/gpio.h>
 
 #include <mach/hardware.h>
diff --git a/arch/arm/mach-omap2/clock24xx.c b/arch/arm/mach-omap2/clock24xx.c
index 1e839c5a28c..efc59c49341 100644
--- a/arch/arm/mach-omap2/clock24xx.c
+++ b/arch/arm/mach-omap2/clock24xx.c
@@ -60,12 +60,13 @@ struct omap_clk {
 		},			\
 	}
 
-#define CK_243X	(1 << 0)
-#define CK_242X	(1 << 1)
+#define CK_243X			RATE_IN_243X
+#define CK_242X			RATE_IN_242X
 
 static struct omap_clk omap24xx_clks[] = {
 	/* external root sources */
 	CLK(NULL,	"func_32k_ck",	&func_32k_ck,	CK_243X | CK_242X),
+	CLK(NULL,	"secure_32k_ck", &secure_32k_ck, CK_243X | CK_242X),
 	CLK(NULL,	"osc_ck",	&osc_ck,	CK_243X | CK_242X),
 	CLK(NULL,	"sys_ck",	&sys_ck,	CK_243X | CK_242X),
 	CLK(NULL,	"alt_ck",	&alt_ck,	CK_243X | CK_242X),
@@ -711,7 +712,7 @@ int __init omap2_clk_init(void)
 {
 	struct prcm_config *prcm;
 	struct omap_clk *c;
-	u32 clkrate, cpu_mask;
+	u32 clkrate;
 
 	if (cpu_is_omap242x())
 		cpu_mask = RATE_IN_242X;
@@ -720,21 +721,15 @@ int __init omap2_clk_init(void)
 
 	clk_init(&omap2_clk_functions);
 
+	for (c = omap24xx_clks; c < omap24xx_clks + ARRAY_SIZE(omap24xx_clks); c++)
+		clk_init_one(c->lk.clk);
+
 	osc_ck.rate = omap2_osc_clk_recalc(&osc_ck);
 	propagate_rate(&osc_ck);
 	sys_ck.rate = omap2_sys_clk_recalc(&sys_ck);
 	propagate_rate(&sys_ck);
 
 	for (c = omap24xx_clks; c < omap24xx_clks + ARRAY_SIZE(omap24xx_clks); c++)
-		clk_init_one(c->lk.clk);
-
-	cpu_mask = 0;
-	if (cpu_is_omap2420())
-		cpu_mask |= CK_242X;
-	if (cpu_is_omap2430())
-		cpu_mask |= CK_243X;
-
-	for (c = omap24xx_clks; c < omap24xx_clks + ARRAY_SIZE(omap24xx_clks); c++)
 		if (c->cpu & cpu_mask) {
 			clkdev_add(&c->lk);
 			clk_register(c->lk.clk);
diff --git a/arch/arm/mach-omap2/clock24xx.h b/arch/arm/mach-omap2/clock24xx.h
index 33c3e5b1432..88c5acb40fc 100644
--- a/arch/arm/mach-omap2/clock24xx.h
+++ b/arch/arm/mach-omap2/clock24xx.h
@@ -625,6 +625,14 @@ static struct clk func_32k_ck = {
 	.clkdm_name	= "wkup_clkdm",
 };
 
+static struct clk secure_32k_ck = {
+	.name		= "secure_32k_ck",
+	.ops		= &clkops_null,
+	.rate		= 32768,
+	.flags		= RATE_FIXED,
+	.clkdm_name	= "wkup_clkdm",
+};
+
 /* Typical 12/13MHz in standalone mode, will be 26Mhz in chassis mode */
 static struct clk osc_ck = {		/* (*12, *13, 19.2, *26, 38.4)MHz */
 	.name		= "osc_ck",
@@ -1790,7 +1798,7 @@ static struct clk gpt12_ick = {
 static struct clk gpt12_fck = {
 	.name		= "gpt12_fck",
 	.ops		= &clkops_omap2_dflt_wait,
-	.parent		= &func_32k_ck,
+	.parent		= &secure_32k_ck,
 	.clkdm_name	= "core_l4_clkdm",
 	.enable_reg	= OMAP_CM_REGADDR(CORE_MOD, CM_FCLKEN1),
 	.enable_bit	= OMAP24XX_EN_GPT12_SHIFT,
diff --git a/arch/arm/mach-omap2/clock34xx.h b/arch/arm/mach-omap2/clock34xx.h
index 70ec10deb65..6763b8f7302 100644
--- a/arch/arm/mach-omap2/clock34xx.h
+++ b/arch/arm/mach-omap2/clock34xx.h
@@ -2052,7 +2052,7 @@ static struct clk dss_ick = {
 
 static struct clk cam_mclk = {
 	.name		= "cam_mclk",
-	.ops		= &clkops_omap2_dflt_wait,
+	.ops		= &clkops_omap2_dflt,
 	.parent		= &dpll4_m5x2_ck,
 	.enable_reg	= OMAP_CM_REGADDR(OMAP3430_CAM_MOD, CM_FCLKEN),
 	.enable_bit	= OMAP3430_EN_CAM_SHIFT,
@@ -2063,7 +2063,7 @@ static struct clk cam_mclk = {
 static struct clk cam_ick = {
 	/* Handles both L3 and L4 clocks */
 	.name		= "cam_ick",
-	.ops		= &clkops_omap2_dflt_wait,
+	.ops		= &clkops_omap2_dflt,
 	.parent		= &l4_ick,
 	.init		= &omap2_init_clk_clkdm,
 	.enable_reg	= OMAP_CM_REGADDR(OMAP3430_CAM_MOD, CM_ICLKEN),
@@ -2074,7 +2074,7 @@ static struct clk cam_ick = {
 
 static struct clk csi2_96m_fck = {
 	.name		= "csi2_96m_fck",
-	.ops		= &clkops_omap2_dflt_wait,
+	.ops		= &clkops_omap2_dflt,
 	.parent		= &core_96m_fck,
 	.init		= &omap2_init_clk_clkdm,
 	.enable_reg	= OMAP_CM_REGADDR(OMAP3430_CAM_MOD, CM_FCLKEN),
@@ -2901,7 +2901,6 @@ static struct clk sr_l4_ick = {
 
 /* SECURE_32K_FCK clocks */
 
-/* XXX This clock no longer exists in 3430 TRM rev F */
 static struct clk gpt12_fck = {
 	.name		= "gpt12_fck",
 	.ops		= &clkops_null,
diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c
index d6b4b2f8722..496983ade97 100644
--- a/arch/arm/mach-omap2/devices.c
+++ b/arch/arm/mach-omap2/devices.c
@@ -25,7 +25,6 @@
 #include <mach/board.h>
 #include <mach/mux.h>
 #include <mach/gpio.h>
-#include <mach/eac.h>
 #include <mach/mmc.h>
 
 #if defined(CONFIG_VIDEO_OMAP2) || defined(CONFIG_VIDEO_OMAP2_MODULE)
@@ -366,38 +365,6 @@ static void omap_init_mcspi(void)
 static inline void omap_init_mcspi(void) {}
 #endif
 
-#ifdef CONFIG_SND_OMAP24XX_EAC
-
-#define OMAP2_EAC_BASE			0x48090000
-
-static struct resource omap2_eac_resources[] = {
-	{
-		.start		= OMAP2_EAC_BASE,
-		.end		= OMAP2_EAC_BASE + 0x109,
-		.flags		= IORESOURCE_MEM,
-	},
-};
-
-static struct platform_device omap2_eac_device = {
-	.name		= "omap24xx-eac",
-	.id		= -1,
-	.num_resources	= ARRAY_SIZE(omap2_eac_resources),
-	.resource	= omap2_eac_resources,
-	.dev = {
-		.platform_data = NULL,
-	},
-};
-
-void omap_init_eac(struct eac_platform_data *pdata)
-{
-	omap2_eac_device.dev.platform_data = pdata;
-	platform_device_register(&omap2_eac_device);
-}
-
-#else
-void omap_init_eac(struct eac_platform_data *pdata) {}
-#endif
-
 #ifdef CONFIG_OMAP_SHA1_MD5
 static struct resource sha1_md5_resources[] = {
 	{
diff --git a/arch/arm/mach-omap2/irq.c b/arch/arm/mach-omap2/irq.c
index 9ba20d985dd..998c5c45587 100644
--- a/arch/arm/mach-omap2/irq.c
+++ b/arch/arm/mach-omap2/irq.c
@@ -73,9 +73,9 @@ static int omap_check_spurious(unsigned int irq)
 	u32 sir, spurious;
 
 	sir = intc_bank_read_reg(&irq_banks[0], INTC_SIR);
-	spurious = sir >> 6;
+	spurious = sir >> 7;
 
-	if (spurious > 1) {
+	if (spurious) {
 		printk(KERN_WARNING "Spurious irq %i: 0x%08x, please flush "
 					"posted write for irq %i\n",
 					irq, sir, previous_irq);
diff --git a/arch/arm/mach-omap2/timer-gp.c b/arch/arm/mach-omap2/timer-gp.c
index 9fc13a2cc3f..f36aba12090 100644
--- a/arch/arm/mach-omap2/timer-gp.c
+++ b/arch/arm/mach-omap2/timer-gp.c
@@ -3,6 +3,8 @@
  *
  * OMAP2 GP timer support.
  *
+ * Copyright (C) 2009 Nokia Corporation
+ *
  * Update to use new clocksource/clockevent layers
  * Author: Kevin Hilman, MontaVista Software, Inc. <source@mvista.com>
  * Copyright (C) 2007 MontaVista Software, Inc.
@@ -36,8 +38,13 @@
 #include <asm/mach/time.h>
 #include <mach/dmtimer.h>
 
+/* MAX_GPTIMER_ID: number of GPTIMERs on the chip */
+#define MAX_GPTIMER_ID		12
+
 static struct omap_dm_timer *gptimer;
 static struct clock_event_device clockevent_gpt;
+static u8 __initdata gptimer_id = 1;
+static u8 __initdata inited;
 
 static irqreturn_t omap2_gp_timer_interrupt(int irq, void *dev_id)
 {
@@ -95,20 +102,53 @@ static struct clock_event_device clockevent_gpt = {
 	.set_mode	= omap2_gp_timer_set_mode,
 };
 
+/**
+ * omap2_gp_clockevent_set_gptimer - set which GPTIMER is used for clockevents
+ * @id: GPTIMER to use (1..MAX_GPTIMER_ID)
+ *
+ * Define the GPTIMER that the system should use for the tick timer.
+ * Meant to be called from board-*.c files in the event that GPTIMER1, the
+ * default, is unsuitable.  Returns -EINVAL on error or 0 on success.
+ */
+int __init omap2_gp_clockevent_set_gptimer(u8 id)
+{
+	if (id < 1 || id > MAX_GPTIMER_ID)
+		return -EINVAL;
+
+	BUG_ON(inited);
+
+	gptimer_id = id;
+
+	return 0;
+}
+
 static void __init omap2_gp_clockevent_init(void)
 {
 	u32 tick_rate;
+	int src;
+
+	inited = 1;
 
-	gptimer = omap_dm_timer_request_specific(1);
+	gptimer = omap_dm_timer_request_specific(gptimer_id);
 	BUG_ON(gptimer == NULL);
 
 #if defined(CONFIG_OMAP_32K_TIMER)
-	omap_dm_timer_set_source(gptimer, OMAP_TIMER_SRC_32_KHZ);
+	src = OMAP_TIMER_SRC_32_KHZ;
 #else
-	omap_dm_timer_set_source(gptimer, OMAP_TIMER_SRC_SYS_CLK);
+	src = OMAP_TIMER_SRC_SYS_CLK;
+	WARN(gptimer_id == 12, "WARNING: GPTIMER12 can only use the "
+	     "secure 32KiHz clock source\n");
 #endif
+
+	if (gptimer_id != 12)
+		WARN(IS_ERR_VALUE(omap_dm_timer_set_source(gptimer, src)),
+		     "timer-gp: omap_dm_timer_set_source() failed\n");
+
 	tick_rate = clk_get_rate(omap_dm_timer_get_fclk(gptimer));
 
+	pr_info("OMAP clockevent source: GPTIMER%d at %u Hz\n",
+		gptimer_id, tick_rate);
+
 	omap2_gp_timer_irq.dev_id = (void *)gptimer;
 	setup_irq(omap_dm_timer_get_irq(gptimer), &omap2_gp_timer_irq);
 	omap_dm_timer_set_int_enable(gptimer, OMAP_TIMER_INT_OVERFLOW);
@@ -125,6 +165,8 @@ static void __init omap2_gp_clockevent_init(void)
 	clockevents_register_device(&clockevent_gpt);
 }
 
+/* Clocksource code */
+
 #ifdef CONFIG_OMAP_32K_TIMER
 /* 
  * When 32k-timer is enabled, don't use GPTimer for clocksource
@@ -138,7 +180,7 @@ static inline void __init omap2_gp_clocksource_init(void) {}
  * clocksource
  */
 static struct omap_dm_timer *gpt_clocksource;
-static cycle_t clocksource_read_cycles(void)
+static cycle_t clocksource_read_cycles(struct clocksource *cs)
 {
 	return (cycle_t)omap_dm_timer_read_counter(gpt_clocksource);
 }
diff --git a/arch/arm/mach-omap2/usb-musb.c b/arch/arm/mach-omap2/usb-musb.c
index fc74e913c41..34a56a136ef 100644
--- a/arch/arm/mach-omap2/usb-musb.c
+++ b/arch/arm/mach-omap2/usb-musb.c
@@ -131,14 +131,14 @@ static struct musb_hdrc_platform_data musb_plat = {
 	.power		= 50,			/* up to 100 mA */
 };
 
-static u64 musb_dmamask = DMA_32BIT_MASK;
+static u64 musb_dmamask = DMA_BIT_MASK(32);
 
 static struct platform_device musb_device = {
 	.name		= "musb_hdrc",
 	.id		= -1,
 	.dev = {
 		.dma_mask		= &musb_dmamask,
-		.coherent_dma_mask	= DMA_32BIT_MASK,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
 		.platform_data		= &musb_plat,
 	},
 	.num_resources	= ARRAY_SIZE(musb_resources),
@@ -146,14 +146,14 @@ static struct platform_device musb_device = {
 };
 
 #ifdef CONFIG_NOP_USB_XCEIV
-static u64 nop_xceiv_dmamask = DMA_32BIT_MASK;
+static u64 nop_xceiv_dmamask = DMA_BIT_MASK(32);
 
 static struct platform_device nop_xceiv_device = {
 	.name		= "nop_usb_xceiv",
 	.id		= -1,
 	.dev = {
 		.dma_mask		= &nop_xceiv_dmamask,
-		.coherent_dma_mask	= DMA_32BIT_MASK,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
 		.platform_data		= NULL,
 	},
 };
diff --git a/arch/arm/mach-omap2/usb-tusb6010.c b/arch/arm/mach-omap2/usb-tusb6010.c
index 15e509013de..8df55f40f4c 100644
--- a/arch/arm/mach-omap2/usb-tusb6010.c
+++ b/arch/arm/mach-omap2/usb-tusb6010.c
@@ -187,7 +187,7 @@ int tusb6010_platform_retime(unsigned is_refclk)
 	unsigned	sysclk_ps;
 	int		status;
 
-	if (!refclk_psec)
+	if (!refclk_psec || sysclk_ps == 0)
 		return -ENODEV;
 
 	sysclk_ps = is_refclk ? refclk_psec : TUSB6010_OSCCLK_60;