Re: [PATCH v3 3/4] ARM: EXYNOS: cpuidle: add secure firmware support to AFTR mode code
From: Krzysztof Kozlowski
Date: Thu Jul 10 2014 - 04:29:11 EST
On 09.07.2014 19:17, Bartlomiej Zolnierkiewicz wrote:
* Move cp15 registers saving to exynos_save_cp15() helper and add
additional helper usage to do_idle firmware method.
* Use sysram_ns_base_addr + 0x24/0x20 addresses instead of the default
ones used by exynos_cpu_set_boot_vector() on boards with secure
firmware enabled.
* Use do_idle firmware method instead of cpu_do_idle() on boards with
secure firmware enabled.
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@xxxxxxxxxxx>
Acked-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
---
v3:
- make exynos_enter_aftr() return a value
- add cp15 registers handling to do_idle firmware method
- set sysram_ns_base_addr + 0x24/0x20 in do_idle firmware method
- move calling of do_idle firmware method from cpuidle-exynos.c
to pm.c
arch/arm/mach-exynos/common.h | 2 +-
arch/arm/mach-exynos/firmware.c | 26 ++++++++++++++++++--------
arch/arm/mach-exynos/pm.c | 11 +++++++++--
drivers/cpuidle/cpuidle-exynos.c | 6 +++---
4 files changed, 31 insertions(+), 14 deletions(-)
diff --git a/arch/arm/mach-exynos/common.h b/arch/arm/mach-exynos/common.h
index a6a200f..0829808 100644
--- a/arch/arm/mach-exynos/common.h
+++ b/arch/arm/mach-exynos/common.h
@@ -170,7 +170,7 @@ extern int exynos_cpu_power_state(int cpu);
extern void exynos_cluster_power_down(int cluster);
extern void exynos_cluster_power_up(int cluster);
extern int exynos_cluster_power_state(int cluster);
-extern void exynos_enter_aftr(void);
+extern int exynos_enter_aftr(void);
extern void s5p_init_cpu(void __iomem *cpuid_addr);
extern unsigned int samsung_rev(void);
diff --git a/arch/arm/mach-exynos/firmware.c b/arch/arm/mach-exynos/firmware.c
index 53fbf5c..163f5b9 100644
--- a/arch/arm/mach-exynos/firmware.c
+++ b/arch/arm/mach-exynos/firmware.c
@@ -24,13 +24,30 @@
#include "smc.h"
#define EXYNOS_SLEEP_MAGIC 0x00000bad
+#define EXYNOS_AFTR_MAGIC 0xfcba0d10
#define EXYNOS_BOOT_ADDR 0x8
#define EXYNOS_BOOT_FLAG 0xc
+/* For Cortex-A9 Diagnostic and Power control register */
+static unsigned int cp15_power;
+static unsigned int cp15_diag;
+
+static void exynos_save_cp15(void)
+{
+ /* Save Power control and Diagnostic registers */
+ asm ("mrc p15, 0, %0, c15, c0, 0\n"
+ "mrc p15, 0, %1, c15, c0, 1\n"
+ : "=r" (cp15_power), "=r" (cp15_diag) : : "cc");
Hi,
On Exynos3250 I encounter "Oops - undefined instruction" on this asm
while entering AFTR:
[ 2.277946] CPUidle CPU1: going off
[ 2.278110] CPUidle CPU0: going AFTR
[ 2.279478] Internal error: Oops - undefined instruction: 0 [#1]
PREEMPT SMP ARM
Are you sure it should be called on each SoC?
Full dmesg attached.
Best regards,
Krzysztof
+}
+
static int exynos_do_idle(unsigned long mode)
{
switch (mode) {
case FW_DO_IDLE_AFTR:
+ exynos_save_cp15();
+ __raw_writel(virt_to_phys(exynos_cpu_resume),
+ sysram_ns_base_addr + 0x24);
+ __raw_writel(EXYNOS_AFTR_MAGIC, sysram_ns_base_addr + 0x20);
exynos_smc(SMC_CMD_CPU0AFTR, 0, 0, 0);
break;
case FW_DO_IDLE_SLEEP:
@@ -76,10 +93,6 @@ static int exynos_set_cpu_boot_addr(int cpu, unsigned long boot_addr)
return 0;
}
-/* For Cortex-A9 Diagnostic and Power control register */
-static unsigned int cp15_power;
-static unsigned int cp15_diag;
-
static int exynos_cpu_suspend(unsigned long arg)
{
flush_cache_all();
@@ -94,10 +107,7 @@ static int exynos_cpu_suspend(unsigned long arg)
static int exynos_suspend(void)
{
- /* Save Power control and Diagnostic registers */
- asm ("mrc p15, 0, %0, c15, c0, 0\n"
- "mrc p15, 0, %1, c15, c0, 1\n"
- : "=r" (cp15_power), "=r" (cp15_diag) : : "cc");
+ exynos_save_cp15();
writel(EXYNOS_SLEEP_MAGIC, sysram_ns_base_addr + EXYNOS_BOOT_FLAG);
writel(virt_to_phys(cpu_resume),
diff --git a/arch/arm/mach-exynos/pm.c b/arch/arm/mach-exynos/pm.c
index c722454..af0d4bf 100644
--- a/arch/arm/mach-exynos/pm.c
+++ b/arch/arm/mach-exynos/pm.c
@@ -201,12 +201,19 @@ static void exynos_cpu_set_boot_vector(long flags)
__raw_writel(flags, exynos_boot_vector_flag());
}
-void exynos_enter_aftr(void)
+int exynos_enter_aftr(void)
{
+ int ret;
+
exynos_set_wakeupmask(0x0000ff3e);
- exynos_cpu_set_boot_vector(S5P_CHECK_AFTR);
/* Set value of power down register for aftr mode */
exynos_sys_powerdown_conf(SYS_AFTR);
+
+ ret = call_firmware_op(do_idle, FW_DO_IDLE_AFTR);
+ if (ret == -ENOSYS)
+ exynos_cpu_set_boot_vector(S5P_CHECK_AFTR);
+
+ return ret;
}
/* For Cortex-A9 Diagnostic and Power control register */
diff --git a/drivers/cpuidle/cpuidle-exynos.c b/drivers/cpuidle/cpuidle-exynos.c
index 7c01512..c5b36d3 100644
--- a/drivers/cpuidle/cpuidle-exynos.c
+++ b/drivers/cpuidle/cpuidle-exynos.c
@@ -18,12 +18,12 @@
#include <asm/suspend.h>
#include <asm/cpuidle.h>
-static void (*exynos_enter_aftr)(void);
+static int (*exynos_enter_aftr)(void);
static int idle_finisher(unsigned long flags)
{
- exynos_enter_aftr();
- cpu_do_idle();
+ if (exynos_enter_aftr() == -ENOSYS)
+ cpu_do_idle();
return 1;
}
Elapsed time: 2.627 sec (0x7d44a4, 3125000Hz)
Uncompressing Linux... done, booting the kernel.
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Initializing cgroup subsys cpuset
[ 0.000000] Initializing cgroup subsys cpu
[ 0.000000] Initializing cgroup subsys cpuacct
[ 0.000000] Linux version 3.16.0-rc4-00098-geaa0e4daaabb-dirty (k.kozlowski@AMDC1943) (gcc version 4.7.3 (Ubuntu/Linaro 4.7.3-12ubuntu1) ) #160 SMP PREEMPT Thu Jul 10 09:56:14 CEST 2014
[ 0.000000] CPU: ARMv7 Processor [410fc073] revision 3 (ARMv7), cr=10c53c7d
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[ 0.000000] Memory policy: Data cache writealloc
[ 0.000000] Running under secure firmware.
[ 0.000000] PERCPU: Embedded 9 pages/cpu @dfab1000 s14656 r8192 d14016 u36864
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 129794
[ 0.000000] Kernel command line: console=ttySAC1,115200 loglevel=7 no_console_suspend init=/bin/sh root=/dev/mmcblk0p15 ro rootfstype=ext4 rootwait bootmode=normal pwron.reason=ap:swrst,pmic:pwron sec_debug.enable=1 sec_debug.enable_user=0 softlockup_panic=0 sec_log=0x200000@0x46000000 lcdtype=0 oops=panic pmic_info=1875 sysscope=0xee000000 cordon=a4be4deb59d0e10ddccd45c2afebdd1b serialno=410094f7534ab063 tizenboot.emmc_checksum=3 tizenboot.odin=1 bootloader.ver=localbuild bootloader.fb=0x48000000 bootloader.log=0x11fd@0x46001636
[ 0.000000] PID hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
[ 0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
[ 0.000000] allocated 1046528 bytes of page_cgroup
[ 0.000000] please try 'cgroup_disable=memory' option if you don't want memory cgroups
[ 0.000000] Memory: 500912K/523264K available (5340K kernel code, 390K rwdata, 1940K rodata, 282K init, 8511K bss, 22352K reserved)
[ 0.000000] Virtual kernel memory layout:
[ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB)
[ 0.000000] fixmap : 0xffc00000 - 0xffe00000 (2048 kB)
[ 0.000000] vmalloc : 0xe0000000 - 0xff000000 ( 496 MB)
[ 0.000000] lowmem : 0xc0000000 - 0xdff00000 ( 511 MB)
[ 0.000000] modules : 0xbf000000 - 0xc0000000 ( 16 MB)
[ 0.000000] .text : 0xc0008000 - 0xc072454c (7282 kB)
[ 0.000000] .init : 0xc0725000 - 0xc076b940 ( 283 kB)
[ 0.000000] .data : 0xc076c000 - 0xc07cdadc ( 391 kB)
[ 0.000000] .bss : 0xc07cdadc - 0xc101daa4 (8512 kB)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
[ 0.000000] Preemptible hierarchical RCU implementation.
[ 0.000000] RCU lockdep checking is enabled.
[ 0.000000] Offload RCU callbacks from all CPUs
[ 0.000000] Offload RCU callbacks from CPUs: 0-1.
[ 0.000000] NR_IRQS:16 nr_irqs:16 16
[ 0.000015] sched_clock: 64 bits at 24MHz, resolution 41ns, wraps every 2863311519744ns
[ 0.001224] Console: colour dummy device 80x30
[ 0.001280] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar
[ 0.001292] ... MAX_LOCKDEP_SUBCLASSES: 8
[ 0.001304] ... MAX_LOCK_DEPTH: 48
[ 0.001315] ... MAX_LOCKDEP_KEYS: 8191
[ 0.001326] ... CLASSHASH_SIZE: 4096
[ 0.001337] ... MAX_LOCKDEP_ENTRIES: 32768
[ 0.001349] ... MAX_LOCKDEP_CHAINS: 65536
[ 0.001360] ... CHAINHASH_SIZE: 32768
[ 0.001371] memory used by lock dependency info: 5167 kB
[ 0.001383] per task-struct memory footprint: 1152 bytes
[ 0.001435] Calibrating delay loop... 1384.44 BogoMIPS (lpj=3461120)
[ 0.095032] pid_max: default: 32768 minimum: 301
[ 0.095460] Security Framework initialized
[ 0.095640] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.095662] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.099246] Initializing cgroup subsys memory
[ 0.099560] Initializing cgroup subsys freezer
[ 0.099678] Initializing cgroup subsys debug
[ 0.099946] CPU: Testing write buffer coherency: ok
[ 0.101558] CPU0: update cpu_capacity 1024
[ 0.101579] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[ 0.101794] Setting up static identity map for 0x40512728 - 0x40512780
[ 0.147987] CPU1: Software reset
[ 0.148227] CPU1: Booted secondary processor
[ 0.174989] CPU1: update cpu_capacity 1024
[ 0.174998] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[ 0.175835] Brought up 2 CPUs
[ 0.175865] SMP: Total of 2 processors activated.
[ 0.175879] CPU: All CPU(s) started in SVC mode.
[ 0.180386] devtmpfs: initialized
[ 0.207275] VFP support v0.3: implementor 41 architecture 2 part 30 variant 7 rev 3
[ 0.210686] pinctrl core: initialized pinctrl subsystem
[ 0.214405] regulator-dummy: no parameters
[ 0.275551] NET: Registered protocol family 16
[ 0.276331] DMA: preallocated 256 KiB pool for atomic coherent allocations
[ 0.279469] cpuidle: using governor ladder
[ 0.279500] cpuidle: using governor menu
[ 0.302487] samsung-pinctrl 11000000.pinctrl: node initial-state does not have either config or function configurations
[ 0.309420] samsung-pinctrl 11400000.pinctrl: node initial-state does not have either config or function configurations
[ 0.324909] hw-breakpoint: Failed to enable monitor mode on CPU 0.
[ 0.324962] EXYNOS3250 PMU Initialize
[ 0.371635] V_EMMC_2.8V-fixed: 2800 mV
[ 0.397883] max14577 7-0025: Device type: 2 (ID: 0xe, vendor: 0x5)
[ 0.419854] SAFEOUT: 4900 mV
[ 0.434087] CHARGER: 45 <--> 475 mA at 475 mA
[ 0.447298] UNUSED_LDO1: 2700 mV
[ 0.454790] UNUSED_LDO2: 800 <--> 3950 mV at 1800 mV
[ 0.459814] i2c-gpio 138d0000.i2c: using pins 147 (SDA) and 148 (SCL)
[ 0.460688] s3c-i2c 13860000.i2c: slave address 0x10
[ 0.460717] s3c-i2c 13860000.i2c: bus frequency set to 97 KHz
[ 0.469107] VAP_ALIVE_1.0V: 1000 mV
[ 0.471929] VAP_M1_1.2V: 1200 mV
[ 0.474480] VCC_AP_1.8V: 1800 mV
[ 0.477202] VAP_AVDD_PLL1: 1800 mV
[ 0.479719] VAP_PLL_ISO_1.0V: 1000 mV
[ 0.482360] VAP_VMIPI_1.0V: 1000 mV
[ 0.484944] VAP_AVDD_1.8V: 1800 mV
[ 0.487823] VAP_USB_3.0V: 3000 mV
[ 0.490440] V_LPDDR_1.2V: 1200 mV
[ 0.492439] UNUSED_LDO10: 900 <--> 1100 mV at 1000 mV
[ 0.495540] V_EMMC_1.8V: 1800 mV
[ 0.499959] V_EMMC_2.8V: 2800 mV
[ 0.503167] CAM_AVDD_2.8V: 2800 mV
[ 0.505241] MOT_2.7V: 1800 <--> 2700 mV at 2700 mV
[ 0.508272] TSP_AVDD_3.3V: 3300 mV
[ 0.510835] LCD_VDD_3.3V: 3300 mV
[ 0.514345] UNUSED_LDO17: 2800 mV
[ 0.517396] CAM_AF_2.8V: 2800 mV
[ 0.520497] TSP_VDD_1.8V: 1800 mV
[ 0.523064] LCD_VDD_1.8V: 1800 mV
[ 0.526080] CAM_IO_1.8V: 1800 mV
[ 0.529113] CAM_DVDD_1.2V: 1200 mV
[ 0.531781] HRM_VCC_1.8V: 1800 mV
[ 0.536243] HRM_VCC_3.3V: 3300 mV
[ 0.538250] UNUSED_LDO25: 1800 <--> 3375 mV at 3000 mV
[ 0.540909] VAP_MIF_1.0V: 800 <--> 900 mV at 1000 mV
[ 0.543458] VAP_ARM_1.0V: 850 <--> 1150 mV at 1000 mV
[ 0.546008] VAP_INT3D_1.0V: 850 <--> 1000 mV at 1000 mV
[ 0.548831] VCC_SUB_1.95V: 1950 mV
[ 0.551473] VCC_SUB_1.35V: 1350 mV
[ 0.553389] s3c-i2c 13860000.i2c: i2c-0: S3C I2C adapter
[ 0.553877] s3c-i2c 13870000.i2c: slave address 0x10
[ 0.553904] s3c-i2c 13870000.i2c: bus frequency set to 390 KHz
[ 0.556047] s3c-i2c 13870000.i2c: i2c-1: S3C I2C adapter
[ 0.556390] s3c-i2c 13880000.i2c: slave address 0x10
[ 0.556417] s3c-i2c 13880000.i2c: bus frequency set to 390 KHz
[ 0.558511] s3c-i2c 13880000.i2c: i2c-2: S3C I2C adapter
[ 0.558841] Linux video capture interface: v2.00
[ 0.569695] Advanced Linux Sound Architecture Driver Initialized.
[ 0.573686] Bluetooth: Core ver 2.19
[ 0.573868] NET: Registered protocol family 31
[ 0.573884] Bluetooth: HCI device and connection manager initialized
[ 0.573995] Bluetooth: HCI socket layer initialized
[ 0.574032] Bluetooth: L2CAP socket layer initialized
[ 0.574234] Bluetooth: SCO socket layer initialized
[ 0.574298] NetLabel: Initializing
[ 0.574312] NetLabel: domain hash size = 128
[ 0.574324] NetLabel: protocols = UNLABELED CIPSOv4
[ 0.574557] NetLabel: unlabeled traffic allowed by default
[ 0.577734] Switched to clocksource mct-frc
[ 0.734124] NET: Registered protocol family 2
[ 0.737661] TCP established hash table entries: 4096 (order: 2, 16384 bytes)
[ 0.737880] TCP bind hash table entries: 4096 (order: 5, 147456 bytes)
[ 0.739635] TCP: Hash tables configured (established 4096 bind 4096)
[ 0.739825] TCP: reno registered
[ 0.739860] UDP hash table entries: 256 (order: 2, 20480 bytes)
[ 0.740114] UDP-Lite hash table entries: 256 (order: 2, 20480 bytes)
[ 0.741448] NET: Registered protocol family 1
[ 0.743311] hw perfevents: enabled with ARMv7 Cortex-A7 PMU driver, 5 counters available
[ 0.748117] futex hash table entries: 512 (order: 3, 32768 bytes)
[ 0.748471] audit: initializing netlink subsys (disabled)
[ 0.748794] audit: type=2000 audit(0.745:1): initialized
[ 0.786725] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[ 0.787693] fuse init (API version 7.23)
[ 0.789158] msgmni has been set to 978
[ 0.798360] io scheduler noop registered
[ 0.799048] io scheduler cfq registered (default)
[ 0.818115] dma-pl330 12680000.pdma: Loaded driver for PL330 DMAC-1315632
[ 0.818142] dma-pl330 12680000.pdma: DBUFF-32x4bytes Num_Chans-8 Num_Peri-32 Num_Events-32
[ 0.834212] dma-pl330 12690000.pdma: Loaded driver for PL330 DMAC-1315632
[ 0.834239] dma-pl330 12690000.pdma: DBUFF-32x4bytes Num_Chans-8 Num_Peri-32 Num_Events-32
[ 0.836003] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
[ 0.856996] 13800000.serial: ttySAC0 at MMIO 0x13800000 (irq = 141, base_baud = 0) is a S3C6400/10
[ 0.859297] 13810000.serial: ttySAC1 at MMIO 0x13810000 (irq = 142, base_baud = 0) is a S3C6400/10
[ 1.731921] console [ttySAC1] enabled
[ 1.737731] [drm] Initialized drm 1.1.0 20060810
[ 1.743800] exynos-drm-ipp exynos-drm-ipp: drm ipp registered successfully.
[ 1.758437] loop: module loaded
[ 1.759097] s3c64xx-spi 13920000.spi: number of chip select lines not specified, assuming 1 chip select line
[ 1.770034] s3c64xx-spi 13930000.spi: number of chip select lines not specified, assuming 1 chip select line
[ 1.780267] s3c-rtc 10070000.rtc: rtc disabled, re-enabling
[ 1.782554] s3c-rtc 10070000.rtc: rtc core: registered s3c as rtc0
[ 1.787455] s3c-rtc 10070000.rtc: warning: invalid RTC value so initializing it
[ 1.804233] s5m-rtc s2mps14-rtc: rtc core: registered s5m-rtc as rtc1
[ 1.809492] max17040 1-0036: max17040_write_reg: err -111
[ 1.811637] max17040 1-0036: MAX17040 Fuel-Gauge Ver 00
[ 1.866540] Bluetooth: HCI UART driver ver 2.2
[ 1.866649] Bluetooth: HCI H4 protocol initialized
[ 1.870643] cpufreq_cpu0: failed to get cpu0 regulator: -19
[ 1.878466] cpufreq: ondemand governor failed, too long transition latency of HW, fallback to performance governor
[ 1.889034] exynos_cpuidle exynos_cpuidle: Probing CPU idle driver
[ 1.893591] Synopsys Designware Multimedia Card Interface Driver
[ 1.899810] dwmmc_exynos 12510000.mshc: Using internal DMA controller.
[ 1.904768] dwmmc_exynos 12510000.mshc: Version ID is 260a
[ 1.910821] dwmmc_exynos 12510000.mshc: DW MMC controller at irq 174, 64 bit host data width, 128 deep fifo
[ 1.948134] dwmmc_exynos 12510000.mshc: 1 slots initialized
[ 1.949843] logger: created 256K log 'log_main'
[ 1.954583] logger: created 256K log 'log_events'
[ 1.958286] logger: created 256K log 'log_radio'
[ 1.962519] logger: created 256K log 'log_system'
[ 2.020709] mmc0: BKOPS_EN bit is not set
[ 2.023202] mmc_host mmc0: Bus speed (slot 0) = 50000000Hz (slot req 52000000Hz, actual 50000000HZ div = 0)
[ 2.029336] mmc_host mmc0: Bus speed (slot 0) = 100000000Hz (slot req 52000000Hz, actual 50000000HZ div = 1)
[ 2.038976] mmc0: new DDR MMC card at address 0001
[ 2.047969] mmcblk0: mmc0:0001 F5X5MA 3.64 GiB
[ 2.052879] mmcblk0boot0: mmc0:0001 F5X5MA partition 1 4.00 MiB
[ 2.054084] mmcblk0boot1: mmc0:0001 F5X5MA partition 2 4.00 MiB
[ 2.060123] mmcblk0rpmb: mmc0:0001 F5X5MA partition 3 512 KiB
[ 2.075249] mmcblk0: p1 p2 p3 p4 p5 p6 p7 p8 p9 p10 p11 p12 p13 p14 p15
[ 2.084082] max14577-muic max77836-muic: device ID : 0x75
[ 2.095708] mmcblk0boot1: unknown partition table
[ 2.096300] oprofile: using timer interrupt.
[ 2.099831] mmcblk0boot0: unknown partition table
[ 2.100197] TCP: cubic registered
[ 2.100391] NET: Registered protocol family 17
[ 2.100524] NET: Registered protocol family 15
[ 2.111270] Bluetooth: RFCOMM TTY layer initialized
[ 2.111325] Bluetooth: RFCOMM socket layer initialized
[ 2.111380] Bluetooth: RFCOMM ver 1.11
[ 2.111466] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 2.111491] Bluetooth: BNEP socket layer initialized
[ 2.111506] Bluetooth: HIDP (Human Interface Emulation) ver 1.2
[ 2.111530] Bluetooth: HIDP socket layer initialized
[ 2.114145] isp-power-domain: Power-off latency exceeded, new value 437375 ns
[ 2.114471] lcd0-power-domain: Power-off latency exceeded, new value 293708 ns
[ 2.114971] g3d-power-domain: Power-off latency exceeded, new value 470959 ns
[ 2.115330] mfc-power-domain: Power-off latency exceeded, new value 327958 ns
[ 2.115663] cam-power-domain: Power-off latency exceeded, new value 306333 ns
[ 2.118149] registered taskstats version 1
[ 2.122308] input: soc:gpio-keys@0 as /devices/soc/soc:gpio-keys@0/input/input0
[ 2.198046] s3c-rtc 10070000.rtc: setting system clock to 2000-01-01 00:00:00 UTC (946684800)
[ 2.207642] charger-manager soc:charger-manager@: Ignoring full-battery voltage threshold as it is not supplied
[ 2.216557] charger-manager soc:charger-manager@: Ignoring full-battery full capacity threshold as it is not supplied
[ 2.227147] charger-manager soc:charger-manager@: Cannot find power supply "max17040"
[ 2.277946] CPUidle CPU1: going off
[ 2.278110] CPUidle CPU0: going AFTR
[ 2.279478] Internal error: Oops - undefined instruction: 0 [#1] PREEMPT SMP ARM
[ 2.286742] Modules linked in:
[ 2.289783] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.16.0-rc4-00098-geaa0e4daaabb-dirty #160
[ 2.298459] task: c0776da8 ti: c076c000 task.ti: c076c000
[ 2.303846] PC is at exynos_do_idle+0x34/0x8c
[ 2.308182] LR is at exynos_enter_aftr+0x38/0x58
[ 2.312782] pc : [<c001f288>] lr : [<c001fbc0>] psr: 60000193
[ 2.312782] sp : c076de84 ip : c0515a7c fp : 00000000
[ 2.324237] r10: c1010944 r9 : ded16440 r8 : 0000000f
[ 2.329445] r7 : 00000007 r6 : 00000000 r5 : c076decc r4 : 00000030
[ 2.335955] r3 : c07cde7c r2 : c07cde84 r1 : 00000001 r0 : 00000001
[ 2.342467] Flags: nZCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment kernel
[ 2.349844] Control: 10c53c7d Table: 4000406a DAC: 00000015
[ 2.355572] Process swapper/0 (pid: 0, stack limit = 0xc076c240)
[ 2.361561] Stack: (0xc076de84 to 0xc076e000)
[ 2.365906] de80: c001f254 c001fbc0 c001fb88 c037f878 0000003f c001424c 5f494000
[ 2.374064] dea0: c076decc 4001ed80 00000000 00000000 00000000 00000015 4000406a 10c53c7d
[ 2.382224] dec0: 0000e440 00f00000 00000000 00000000 c037f864 c0785fc0 dfab3280 00000001
[ 2.390383] dee0: ded16440 c1010944 ded1644c c0014338 0000000f c1010948 c0791148 c037f9b8
[ 2.398542] df00: 879f9414 00000000 c07addc8 ffffffff dfab3280 ded16440 c1010944 c037d714
[ 2.406701] df20: 879f9414 00000000 c076c000 c037f020 ffff0000 00000001 dfab3280 c076c000
[ 2.414861] df40: ffffffff c07addc8 c1010944 c037f670 c07bd640 c0515e34 00000001 ded16450
[ 2.423020] df60: dfab3284 dfab3280 c0515e34 00000001 c076c000 c077442c 00000000 c07addc8
[ 2.431179] df80: c07bd640 c006dde0 00000001 c076a278 00000000 c07bc46c c076dfa4 c07748e8
[ 2.439339] dfa0: c07cdb00 c075cc5c dfefc780 4000406a 410fc073 00000000 00000000 c006e230
[ 2.447498] dfc0: c0776da8 c0725b1c ffffffff ffffffff c0725608 00000000 00000000 c075cc5c
[ 2.455656] dfe0: 00000000 c07cdd14 c07743b0 c075cc58 c0778824 40008074 00000000 00000000
[ 2.463824] [<c001f288>] (exynos_do_idle) from [<c001fbc0>] (exynos_enter_aftr+0x38/0x58)
[ 2.471981] [<c001fbc0>] (exynos_enter_aftr) from [<c037f878>] (idle_aftr_finisher+0x14/0x20)
[ 2.480486] [<c037f878>] (idle_aftr_finisher) from [<c001424c>] (cpu_suspend_abort+0x0/0x14)
[ 2.488901] [<c001424c>] (cpu_suspend_abort) from [<00000000>] ( (null))
[ 2.495673] Code: e3510001 1afffffb e59f204c e59f304c (ee1fcf10)
[ 2.501748] ---[ end trace 62c07ace303a3fce ]---
[ 2.506346] Kernel panic - not syncing: Fatal exception
[ 3.645552] SMP: failed to stop secondary CPUs
[ 3.645652] ---[ end Kernel panic - not syncing: Fatal exception