Merge branch 'master' into percpu

Conflicts:
	arch/powerpc/platforms/pseries/hvCall.S
	include/linux/percpu.h

13 files changed, 101 insertions, 223 deletions

diff --git a/arch/blackfin/mach-common/arch_checks.c b/arch/blackfin/mach-common/arch_checks.c
index 5998d86..f2ca211 100644
--- a/arch/blackfin/mach-common/arch_checks.c
+++ b/arch/blackfin/mach-common/arch_checks.c
@@ -1,30 +1,9 @@
 /*
- * File:         arch/blackfin/mach-common/arch_checks.c
- * Based on:
- * Author:	 Robin Getz <rgetz@blackfin.uclinux.org>
+ * Do some checking to make sure things are OK
  *
- * Created:      25Jul07
- * Description:  Do some checking to make sure things are OK
+ * Copyright 2007-2009 Analog Devices Inc.
  *
- * Modified:
- *               Copyright 2004-2007 Analog Devices Inc.
- *
- * Bugs:         Enter bugs at http://blackfin.uclinux.org/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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, see the file COPYING, or write
- * to the Free Software Foundation, Inc.,
- * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ * Licensed under the GPL-2 or later.
  */
 
 #include <asm/fixed_code.h>
@@ -78,3 +57,8 @@
 	 (!defined(CONFIG_BFIN_EXTMEM_DCACHEABLE) && defined(CONFIG_BFIN_L2_WRITEBACK)))
 # error You are exposing Anomaly 220 in this config, either config L2 as Write Through, or make External Memory WB.
 #endif
+
+#if ANOMALY_05000475 && \
+	(defined(CONFIG_BFIN_EXTMEM_WRITEBACK) || defined(CONFIG_BFIN_L2_WRITEBACK))
+# error "Anomaly 475 does not allow you to use Write Back cache with L2 or External Memory"
+#endif
diff --git a/arch/blackfin/mach-common/cache-c.c b/arch/blackfin/mach-common/cache-c.c
index 4ebbd78..a60a24f 100644
--- a/arch/blackfin/mach-common/cache-c.c
+++ b/arch/blackfin/mach-common/cache-c.c
@@ -3,8 +3,6 @@
  *
  * Copyright 2004-2009 Analog Devices Inc.
  *
- * Enter bugs at http://blackfin.uclinux.org/
- *
  * Licensed under the GPL-2 or later.
  */
 
diff --git a/arch/blackfin/mach-common/cache.S b/arch/blackfin/mach-common/cache.S
index d9666fe..ea54031 100644
--- a/arch/blackfin/mach-common/cache.S
+++ b/arch/blackfin/mach-common/cache.S
@@ -3,8 +3,6 @@
  *
  * Copyright 2004-2008 Analog Devices Inc.
  *
- * Enter bugs at http://blackfin.uclinux.org/
- *
  * Licensed under the GPL-2 or later.
  */
 
diff --git a/arch/blackfin/mach-common/clocks-init.c b/arch/blackfin/mach-common/clocks-init.c
index ef6870e..d5cfe61 100644
--- a/arch/blackfin/mach-common/clocks-init.c
+++ b/arch/blackfin/mach-common/clocks-init.c
@@ -13,6 +13,7 @@
 #include <asm/dma.h>
 #include <asm/clocks.h>
 #include <asm/mem_init.h>
+#include <asm/dpmc.h>
 
 #define SDGCTL_WIDTH (1 << 31)	/* SDRAM external data path width */
 #define PLL_CTL_VAL \
diff --git a/arch/blackfin/mach-common/cpufreq.c b/arch/blackfin/mach-common/cpufreq.c
index 85c6580..7775828 100644
--- a/arch/blackfin/mach-common/cpufreq.c
+++ b/arch/blackfin/mach-common/cpufreq.c
@@ -1,30 +1,9 @@
 /*
- * File:	 arch/blackfin/mach-common/cpufreq.c
- * Based on:
- * Author:
+ * Blackfin core clock scaling
  *
- * Created:
- * Description:	 Blackfin core clock scaling
+ * Copyright 2008-2009 Analog Devices Inc.
  *
- * Modified:
- *		 Copyright 2004-2008 Analog Devices Inc.
- *
- * Bugs:	 Enter bugs at http://blackfin.uclinux.org/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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, see the file COPYING, or write
- * to the Free Software Foundation, Inc.,
- * 51 Franklin St, Fifth Floor, Boston, MA	02110-1301	USA
+ * Licensed under the GPL-2 or later.
  */
 
 #include <linux/kernel.h>
@@ -34,7 +13,7 @@
 #include <linux/fs.h>
 #include <asm/blackfin.h>
 #include <asm/time.h>
-
+#include <asm/dpmc.h>
 
 /* this is the table of CCLK frequencies, in Hz */
 /* .index is the entry in the auxillary dpm_state_table[] */
@@ -159,7 +138,8 @@ static int __init __bfin_cpu_init(struct cpufreq_policy *policy)
 						 dpm_state_table[index].tscale);
 	}
 
-	policy->cpuinfo.transition_latency = (bfin_read_PLL_LOCKCNT() / (sclk / 1000000)) * 1000;
+	policy->cpuinfo.transition_latency = 50000; /* 50us assumed */
+
 	/*Now ,only support one cpu */
 	policy->cur = cclk;
 	cpufreq_frequency_table_get_attr(bfin_freq_table, policy->cpu);
diff --git a/arch/blackfin/mach-common/dpmc_modes.S b/arch/blackfin/mach-common/dpmc_modes.S
index 8009a51..b037168 100644
--- a/arch/blackfin/mach-common/dpmc_modes.S
+++ b/arch/blackfin/mach-common/dpmc_modes.S
@@ -404,6 +404,21 @@ ENTRY(_do_hibernate)
 	PM_SYS_PUSH(EBIU_FCTL)
 #endif
 
+#ifdef PORTCIO_FER
+	PM_SYS_PUSH16(PORTCIO_DIR)
+	PM_SYS_PUSH16(PORTCIO_INEN)
+	PM_SYS_PUSH16(PORTCIO)
+	PM_SYS_PUSH16(PORTCIO_FER)
+	PM_SYS_PUSH16(PORTDIO_DIR)
+	PM_SYS_PUSH16(PORTDIO_INEN)
+	PM_SYS_PUSH16(PORTDIO)
+	PM_SYS_PUSH16(PORTDIO_FER)
+	PM_SYS_PUSH16(PORTEIO_DIR)
+	PM_SYS_PUSH16(PORTEIO_INEN)
+	PM_SYS_PUSH16(PORTEIO)
+	PM_SYS_PUSH16(PORTEIO_FER)
+#endif
+
 	PM_SYS_PUSH16(SYSCR)
 
 	/* Save Core MMRs */
@@ -716,6 +731,21 @@ ENTRY(_do_hibernate)
 	P0.L = lo(PLL_CTL);
 	PM_SYS_POP16(SYSCR)
 
+#ifdef PORTCIO_FER
+	PM_SYS_POP16(PORTEIO_FER)
+	PM_SYS_POP16(PORTEIO)
+	PM_SYS_POP16(PORTEIO_INEN)
+	PM_SYS_POP16(PORTEIO_DIR)
+	PM_SYS_POP16(PORTDIO_FER)
+	PM_SYS_POP16(PORTDIO)
+	PM_SYS_POP16(PORTDIO_INEN)
+	PM_SYS_POP16(PORTDIO_DIR)
+	PM_SYS_POP16(PORTCIO_FER)
+	PM_SYS_POP16(PORTCIO)
+	PM_SYS_POP16(PORTCIO_INEN)
+	PM_SYS_POP16(PORTCIO_DIR)
+#endif
+
 #ifdef EBIU_FCTL
 	PM_SYS_POP(EBIU_FCTL)
 	PM_SYS_POP(EBIU_MODE)
diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S
index a3ea7e9..01b2f58 100644
--- a/arch/blackfin/mach-common/entry.S
+++ b/arch/blackfin/mach-common/entry.S
@@ -1,32 +1,11 @@
 /*
- * File:         arch/blackfin/mach-common/entry.S
- * Based on:
- * Author:       Linus Torvalds
+ * Contains the system-call and fault low-level handling routines.
+ * This also contains the timer-interrupt handler, as well as all
+ * interrupts and faults that can result in a task-switch.
  *
- * Created:      ?
- * Description:  contains the system-call and fault low-level handling routines.
- *               This also contains the timer-interrupt handler, as well as all
- *               interrupts and faults that can result in a task-switch.
+ * Copyright 2005-2009 Analog Devices Inc.
  *
- * Modified:
- *               Copyright 2004-2006 Analog Devices Inc.
- *
- * Bugs:         Enter bugs at http://blackfin.uclinux.org/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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, see the file COPYING, or write
- * to the Free Software Foundation, Inc.,
- * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ * Licensed under the GPL-2 or later.
  */
 
 /* NOTE: This code handles signal-recognition, which happens every time
@@ -734,6 +713,8 @@ ENTRY(_system_call)
 	cc = BITTST(r7, TIF_RESTORE_SIGMASK);
 	if cc jump .Lsyscall_do_signals;
 	cc = BITTST(r7, TIF_SIGPENDING);
+	if cc jump .Lsyscall_do_signals;
+	cc = BITTST(r7, TIF_NOTIFY_RESUME);
 	if !cc jump .Lsyscall_really_exit;
 .Lsyscall_do_signals:
 	/* Reenable interrupts.  */
@@ -742,7 +723,7 @@ ENTRY(_system_call)
 
 	r0 = sp;
 	SP += -12;
-	call _do_signal;
+	call _do_notify_resume;
 	SP += 12;
 
 .Lsyscall_really_exit:
@@ -1443,7 +1424,7 @@ ENTRY(_sys_call_table)
 	.long _sys_ni_syscall	/* streams2 */
 	.long _sys_vfork		/* 190 */
 	.long _sys_getrlimit
-	.long _sys_mmap2
+	.long _sys_mmap_pgoff
 	.long _sys_truncate64
 	.long _sys_ftruncate64
 	.long _sys_stat64	/* 195 */
@@ -1621,6 +1602,7 @@ ENTRY(_sys_call_table)
 	.long _sys_pwritev
 	.long _sys_rt_tgsigqueueinfo
 	.long _sys_perf_event_open
+	.long _sys_recvmmsg		/* 370 */
 
 	.rept NR_syscalls-(.-_sys_call_table)/4
 	.long _sys_ni_syscall
diff --git a/arch/blackfin/mach-common/head.S b/arch/blackfin/mach-common/head.S
index 9c79dfe..cab0a00 100644
--- a/arch/blackfin/mach-common/head.S
+++ b/arch/blackfin/mach-common/head.S
@@ -3,8 +3,6 @@
  *
  * Copyright 2004-2008 Analog Devices Inc.
  *
- * Enter bugs at http://blackfin.uclinux.org/
- *
  * Licensed under the GPL-2 or later.
  */
 
diff --git a/arch/blackfin/mach-common/interrupt.S b/arch/blackfin/mach-common/interrupt.S
index 82d417e..8085ff1 100644
--- a/arch/blackfin/mach-common/interrupt.S
+++ b/arch/blackfin/mach-common/interrupt.S
@@ -1,31 +1,11 @@
 /*
- * File:         arch/blackfin/mach-common/interrupt.S
- * Based on:
- * Author:       D. Jeff Dionne <jeff@ryeham.ee.ryerson.ca>
- *               Kenneth Albanowski <kjahds@kjahds.com>
- *
- * Created:      ?
- * Description:  Interrupt Entries
- *
- * Modified:
- *               Copyright 2004-2006 Analog Devices Inc.
+ * Interrupt Entries
  *
- * Bugs:         Enter bugs at http://blackfin.uclinux.org/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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.
+ * Copyright 2005-2009 Analog Devices Inc.
+ *               D. Jeff Dionne <jeff@ryeham.ee.ryerson.ca>
+ *               Kenneth Albanowski <kjahds@kjahds.com>
  *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see the file COPYING, or write
- * to the Free Software Foundation, Inc.,
- * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ * Licensed under the GPL-2 or later.
  */
 
 #include <asm/blackfin.h>
diff --git a/arch/blackfin/mach-common/ints-priority.c b/arch/blackfin/mach-common/ints-priority.c
index 6ffda78..1873b2c 100644
--- a/arch/blackfin/mach-common/ints-priority.c
+++ b/arch/blackfin/mach-common/ints-priority.c
@@ -1,33 +1,14 @@
 /*
- * File:         arch/blackfin/mach-common/ints-priority.c
+ * Set up the interrupt priorities
  *
- * Description:  Set up the interrupt priorities
+ * Copyright  2004-2009 Analog Devices Inc.
+ *                 2003 Bas Vermeulen <bas@buyways.nl>
+ *                 2002 Arcturus Networks Inc. MaTed <mated@sympatico.ca>
+ *            2000-2001 Lineo, Inc. D. Jefff Dionne <jeff@lineo.ca>
+ *                 1999 D. Jeff Dionne <jeff@uclinux.org>
+ *                 1996 Roman Zippel
  *
- * Modified:
- *               1996 Roman Zippel
- *               1999 D. Jeff Dionne <jeff@uclinux.org>
- *               2000-2001 Lineo, Inc. D. Jefff Dionne <jeff@lineo.ca>
- *               2002 Arcturus Networks Inc. MaTed <mated@sympatico.ca>
- *               2003 Metrowerks/Motorola
- *               2003 Bas Vermeulen <bas@buyways.nl>
- *               Copyright 2004-2008 Analog Devices Inc.
- *
- * Bugs:         Enter bugs at http://blackfin.uclinux.org/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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, see the file COPYING, or write
- * to the Free Software Foundation, Inc.,
- * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ * Licensed under the GPL-2
  */
 
 #include <linux/module.h>
@@ -44,11 +25,20 @@
 #include <asm/blackfin.h>
 #include <asm/gpio.h>
 #include <asm/irq_handler.h>
+#include <asm/dpmc.h>
+#include <asm/bfin5xx_spi.h>
+#include <asm/bfin_sport.h>
 
 #define SIC_SYSIRQ(irq)	(irq - (IRQ_CORETMR + 1))
 
 #ifdef BF537_FAMILY
 # define BF537_GENERIC_ERROR_INT_DEMUX
+# define SPI_ERR_MASK   (BIT_STAT_TXCOL | BIT_STAT_RBSY | BIT_STAT_MODF | BIT_STAT_TXE)	/* SPI_STAT */
+# define SPORT_ERR_MASK (ROVF | RUVF | TOVF | TUVF)	/* SPORT_STAT */
+# define PPI_ERR_MASK   (0xFFFF & ~FLD)	/* PPI_STATUS */
+# define EMAC_ERR_MASK  (PHYINT | MMCINT | RXFSINT | TXFSINT | WAKEDET | RXDMAERR | TXDMAERR | STMDONE)	/* EMAC_SYSTAT */
+# define UART_ERR_MASK  (0x6)	/* UART_IIR */
+# define CAN_ERR_MASK   (EWTIF | EWRIF | EPIF | BOIF | WUIF | UIAIF | AAIF | RMLIF | UCEIF | EXTIF | ADIF)	/* CAN_GIF */
 #else
 # undef BF537_GENERIC_ERROR_INT_DEMUX
 #endif
@@ -343,11 +333,9 @@ static void bfin_demux_error_irq(unsigned int int_err_irq,
 		irq = IRQ_CAN_ERROR;
 	else if (bfin_read_SPI_STAT() & SPI_ERR_MASK)
 		irq = IRQ_SPI_ERROR;
-	else if ((bfin_read_UART0_IIR() & UART_ERR_MASK_STAT1) &&
-		 (bfin_read_UART0_IIR() & UART_ERR_MASK_STAT0))
+	else if ((bfin_read_UART0_IIR() & UART_ERR_MASK) == UART_ERR_MASK)
 		irq = IRQ_UART0_ERROR;
-	else if ((bfin_read_UART1_IIR() & UART_ERR_MASK_STAT1) &&
-		 (bfin_read_UART1_IIR() & UART_ERR_MASK_STAT0))
+	else if ((bfin_read_UART1_IIR() & UART_ERR_MASK) == UART_ERR_MASK)
 		irq = IRQ_UART1_ERROR;
 
 	if (irq) {
diff --git a/arch/blackfin/mach-common/irqpanic.c b/arch/blackfin/mach-common/irqpanic.c
index 883e324..c649624 100644
--- a/arch/blackfin/mach-common/irqpanic.c
+++ b/arch/blackfin/mach-common/irqpanic.c
@@ -1,30 +1,9 @@
 /*
- * File:         arch/blackfin/mach-common/irqpanic.c
- * Based on:
- * Author:
+ * panic kernel with dump information
  *
- * Created:      ?
- * Description:  panic kernel with dump information
+ * Copyright 2005-2009 Analog Devices Inc.
  *
- * Modified:     rgetz - added cache checking code 14Feb06
- *               Copyright 2004-2006 Analog Devices Inc.
- *
- * Bugs:         Enter bugs at http://blackfin.uclinux.org/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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, see the file COPYING, or write
- * to the Free Software Foundation, Inc.,
- * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ * Licensed under the GPL-2 or later.
  */
 
 #include <linux/module.h>
diff --git a/arch/blackfin/mach-common/pm.c b/arch/blackfin/mach-common/pm.c
index 0e3d4ff..8837be4 100644
--- a/arch/blackfin/mach-common/pm.c
+++ b/arch/blackfin/mach-common/pm.c
@@ -1,35 +1,11 @@
 /*
- * File:         arch/blackfin/mach-common/pm.c
- * Based on:     arm/mach-omap/pm.c
- * Author:       Cliff Brake <cbrake@accelent.com> Copyright (c) 2001
+ * Blackfin power management
  *
- * Created:      2001
- * Description:  Blackfin power management
+ * Copyright 2006-2009 Analog Devices Inc.
  *
- * Modified:     Nicolas Pitre - PXA250 support
- *                Copyright (c) 2002 Monta Vista Software, Inc.
- *               David Singleton - OMAP1510
- *                Copyright (c) 2002 Monta Vista Software, Inc.
- *               Dirk Behme <dirk.behme@de.bosch.com> - OMAP1510/1610
- *                Copyright 2004
- *               Copyright 2004-2008 Analog Devices Inc.
- *
- * Bugs:         Enter bugs at http://blackfin.uclinux.org/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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, see the file COPYING, or write
- * to the Free Software Foundation, Inc.,
- * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ * Licensed under the GPL-2
+ * based on arm/mach-omap/pm.c
+ *    Copyright 2001, Cliff Brake <cbrake@accelent.com> and others
  */
 
 #include <linux/suspend.h>
diff --git a/arch/blackfin/mach-common/smp.c b/arch/blackfin/mach-common/smp.c
index 349ee3f..369e687 100644
--- a/arch/blackfin/mach-common/smp.c
+++ b/arch/blackfin/mach-common/smp.c
@@ -1,24 +1,10 @@
 /*
- * File:         arch/blackfin/kernel/smp.c
- * Author:       Philippe Gerum <rpm@xenomai.org>
- * IPI management based on arch/arm/kernel/smp.c.
+ * IPI management based on arch/arm/kernel/smp.c (Copyright 2002 ARM Limited)
  *
- *               Copyright 2007 Analog Devices Inc.
+ * Copyright 2007-2009 Analog Devices Inc.
+ *                         Philippe Gerum <rpm@xenomai.org>
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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, see the file COPYING, or write
- * to the Free Software Foundation, Inc.,
- * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ * Licensed under the GPL-2.
  */
 
 #include <linux/module.h>
@@ -290,10 +276,9 @@ void smp_send_reschedule(int cpu)
 	if (cpu_is_offline(cpu))
 		return;
 
-	msg = kmalloc(sizeof(*msg), GFP_ATOMIC);
+	msg = kzalloc(sizeof(*msg), GFP_ATOMIC);
 	if (!msg)
 		return;
-	memset(msg, 0, sizeof(msg));
 	INIT_LIST_HEAD(&msg->list);
 	msg->type = BFIN_IPI_RESCHEDULE;
 
@@ -319,10 +304,9 @@ void smp_send_stop(void)
 	if (cpus_empty(callmap))
 		return;
 
-	msg = kmalloc(sizeof(*msg), GFP_ATOMIC);
+	msg = kzalloc(sizeof(*msg), GFP_ATOMIC);
 	if (!msg)
 		return;
-	memset(msg, 0, sizeof(msg));
 	INIT_LIST_HEAD(&msg->list);
 	msg->type = BFIN_IPI_CPU_STOP;
 
@@ -352,13 +336,6 @@ int __cpuinit __cpu_up(unsigned int cpu)
 
 	ret = platform_boot_secondary(cpu, idle);
 
-	if (ret) {
-		cpu_clear(cpu, cpu_present_map);
-		printk(KERN_CRIT "CPU%u: processor failed to boot (%d)\n", cpu, ret);
-		free_task(idle);
-	} else
-		cpu_set(cpu, cpu_online_map);
-
 	secondary_stack = NULL;
 
 	return ret;
@@ -434,9 +411,16 @@ void __cpuinit secondary_start_kernel(void)
 
 	setup_secondary(cpu);
 
+	platform_secondary_init(cpu);
+
 	local_irq_enable();
 
-	platform_secondary_init(cpu);
+	/*
+	 * Calibrate loops per jiffy value.
+	 * IRQs need to be enabled here - D-cache can be invalidated
+	 * in timer irq handler, so core B can read correct jiffies.
+	 */
+	calibrate_delay();
 
 	cpu_idle();
 }