[PATCH] ARM: S3C24XX: Fix restart on S3C2442

[Denis 'GNUtoo' Carikli]

>Thanks a lot for the patch.
>It compiles fine.
>Now time for me to look at runtime boot issues for my gta02.
I've now tested at runtime, here's the boot log:

Uncompressing Linux... done, booting the kernel.
[    0.000000] Booting Linux on physical CPU 0
[    0.000000] Initializing cgroup subsys cpuset
[    0.000000] Initializing cgroup subsys cpu
[    0.000000] Linux version 3.3.0-rc3-next-20120213+ (gnutoo at trisquel) (gcc 
version 4.6.3 20111117 (prerelease) (GCC) ) #74 Mon Feb 13 13:12:05 CET 2012
[    0.000000] CPU: ARM920T [41129200] revision 0 (ARMv4T), cr=c0007177
[    0.000000] CPU: VIVT data cache, VIVT instruction cache
[    0.000000] Machine: GTA02
[    0.000000] debug: ignoring loglevel setting.
[    0.000000] bootconsole [earlycon0] enabled
[    0.000000] Memory policy: ECC disabled, Data cache writeback
[    0.000000] CPU S3C2442B (id 0x32440aab)
[    0.000000] S3C24XX Clocks, Copyright 2004 Simtec Electronics
[    0.000000] S3C244X: core 400.000 MHz, memory 100.000 MHz, peripheral 
50.000 MHz
[    0.000000] CLOCK: Slow mode (1.500 MHz), fast, MPLL on, UPLL on
[    0.000000] On node 0 totalpages: 32768
[    0.000000] free_area_init_node: node 0, pgdat c0398220, node_mem_map 
c03e9000
[    0.000000]   Normal zone: 256 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 32512 pages, LIFO batch:7
[    0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
[    0.000000] pcpu-alloc: [0] 0 
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total 
pages: 32512
[    0.000000] Kernel command line: loglevel=4 console=tty0 
console=ttySAC2,115200 init=/sbin/init ro  mtdparts=physmap-
flash:-(nor);neo1973-nand:0x00040000(qi),0x00040000(depr-ub-
env),0x00800000(kernel),0x000a0000(depr),0x00040000(identity-
ext2),0x0f6a0000(rootfs)  root=/dev/mmcblk0p1 rootwait ignore_loglevel 
earlyprintk
[    0.000000] PID hash table entries: 512 (order: -1, 2048 bytes)
[    0.000000] Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
[    0.000000] Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
[    0.000000] Memory: 128MB = 128MB total
[    0.000000] Memory: 125904k/125904k available, 5168k reserved, 0K highmem
[    0.000000] Virtual kernel memory layout:
[    0.000000]     vector  : 0xffff0000 - 0xffff1000   (   4 kB)
[    0.000000]     fixmap  : 0xfff00000 - 0xfffe0000   ( 896 kB)
[    0.000000]     vmalloc : 0xc8800000 - 0xff000000   ( 872 MB)
[    0.000000]     lowmem  : 0xc0000000 - 0xc8000000   ( 128 MB)
[    0.000000]     modules : 0xbf000000 - 0xc0000000   (  16 MB)
[    0.000000]       .text : 0xc0008000 - 0xc0355470   (3382 kB)
[    0.000000]       .init : 0xc0356000 - 0xc0374000   ( 120 kB)
[    0.000000]       .data : 0xc0374000 - 0xc03988c0   ( 147 kB)
[    0.000000]        .bss : 0xc03988e4 - 0xc03e8ab0   ( 321 kB)
[    0.000000] NR_IRQS:85 nr_irqs:85 85
[    0.000000] irq: clearing pending ext status 000b12f0
[    0.000000] irq: clearing pending ext status 000902d0
[    0.000000] irq: clearing subpending status 00000180
[    0.000000] timer tcon=00000000, tcnt a2c1, tcfg 00000200,00000000, usec 
00001eb8
[    0.000000] Console: colour dummy device 80x30
[    0.000000] console [tty0] enabled
[    0.005000] Calibrating delay loop... 199.47 BogoMIPS (lpj=498688)
[    0.050000] pid_max: default: 32768 minimum: 301
[    0.055000] Mount-cache hash table entries: 512
[    0.060000] Initializing cgroup subsys cpuacct
[    0.065000] Initializing cgroup subsys devices
[    0.070000] Initializing cgroup subsys freezer
[    0.075000] CPU: Testing write buffer coherency: ok
[    0.080000] Setting up static identity map for 0x30281fe8 - 0x30282040
[    0.090000] devtmpfs: initialized
[    0.095000] gpiochip_add: registered GPIOs 0 to 23 on device: GPIOA
[    0.100000] gpiochip_add: registered GPIOs 32 to 47 on device: GPIOB
[    0.105000] gpiochip_add: registered GPIOs 64 to 79 on device: GPIOC
[    0.110000] gpiochip_add: registered GPIOs 96 to 111 on device: GPIOD
[    0.115000] gpiochip_add: registered GPIOs 128 to 143 on device: GPIOE
[    0.120000] gpiochip_add: registered GPIOs 160 to 167 on device: GPIOF
[    0.125000] gpiochip_add: registered GPIOs 192 to 207 on device: GPIOG
[    0.130000] gpiochip_add: registered GPIOs 224 to 234 on device: GPIOH
[    0.135000] gpiochip_add: registered GPIOs 256 to 271 on device: GPIOJ
[    0.140000] dummy: 
[    0.145000] NET: Registered protocol family 16
[    0.150000] S3C Power Management, Copyright 2004 Simtec Electronics
[    0.155000] S3C2442: Initialising architecture
[    0.160000] S3C24XX DMA Driver, Copyright 2003-2006 Simtec Electronics
[    0.165000] DMA channel 0 at c8804000, irq 33
[    0.170000] DMA channel 1 at c8804040, irq 34
[    0.170000] DMA channel 2 at c8804080, irq 35
[    0.175000] DMA channel 3 at c88040c0, irq 36
[    0.180000] S3C244X: Clock Support, DVS off
[    0.185000] S3C24XX CPU Frequency driver, s3c244x cpu support
[    0.190000] bio: create slab <bio-0> at 0
[    0.200000] s3c-i2c s3c2440-i2c: slave address 0x10
[    0.205000] s3c-i2c s3c2440-i2c: bus frequency set to 97 KHz
[    0.220000] pcf50633 0-0073: Probed device version 19 variant 132
[    0.245000] wake enabled for irq 53
[    0.250000] auto: 3300 mV normal 
[    0.265000] down1: 1300 <--> 1600 mV at 1300 mV normal 
[    0.270000] down1: Voltage range but no REGULATOR_CHANGE_VOLTAGE
[    0.275000] down2: 1800 mV normal 
[    0.280000] ldo1: 3300 mV normal 
[    0.285000] ldo2: 3300 mV normal 
[    0.290000] ldo3: 3000 mV normal 
[    0.295000] ldo4: 3200 mV normal 
[    0.305000] ldo5: 3000 mV normal 
[    0.305000] ldo6: 3000 mV normal 
[    0.315000] hcldo: 2000 <--> 3300 mV at 3000 mV normal 
[    0.320000] memldo: 1800 mV normal 
[    0.325000] s3c-i2c s3c2440-i2c: i2c-0: S3C I2C adapter
[    0.380000] NET: Registered protocol family 2
[    0.385000] IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.390000] TCP established hash table entries: 4096 (order: 3, 32768 
bytes)
[    0.395000] TCP bind hash table entries: 4096 (order: 2, 16384 bytes)
[    0.400000] TCP: Hash tables configured (established 4096 bind 4096)
[    0.405000] TCP reno registered
[    0.410000] UDP hash table entries: 256 (order: 0, 4096 bytes)
[    0.415000] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[    0.420000] NET: Registered protocol family 1
[    0.425000] s3c-adc s3c24xx-adc: operating without regulator "vdd" .
[    0.435000] JFFS2 version 2.2. (NAND) (SUMMARY)  © 2001-2006 Red Hat, Inc.
[    0.445000] msgmni has been set to 245
[    0.450000] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 
253)
[    0.455000] io scheduler noop registered
[    0.460000] io scheduler deadline registered (default)
[    0.465000] samsung-uart s3c2440-uart.0: could not find driver data
[    0.470000] samsung-uart s3c2440-uart.1: could not find driver data
[    0.475000] samsung-uart s3c2440-uart.2: could not find driver data
[    0.505000] brd: module loaded
[    0.510000] physmap platform flash device: 00200000 at 18000000
[    0.515000] physmap-flash.0: Found 1 x16 devices at 0x0 in 16-bit bank. 
Manufacturer ID 0x000020 Chip ID 0x008813
[    0.520000] Intel/Sharp Extended Query Table at 0x0039
[    0.525000] Intel/Sharp Extended Query Table at 0x0039
[    0.530000] Intel/Sharp Extended Query Table at 0x0039
[    0.535000] Intel/Sharp Extended Query Table at 0x0039
[    0.540000] Intel/Sharp Extended Query Table at 0x0039
[    0.545000] cfi_cmdset_0001: Erase suspend on write enabled
[    0.550000] erase region 0: offset=0x0,size=0x2000,blocks=8
[    0.555000] erase region 1: offset=0x10000,size=0x10000,blocks=31
[    0.560000] physmap-flash.0: 1 set(s) of 1 interleaved chips --> 4 
partitions of 512 KiB
[    0.575000] S3C24XX NAND Driver, (c) 2004 Simtec Electronics
[    0.580000] s3c24xx-nand s3c2440-nand: Tacls=1, 10ns Twrph0=3 30ns, 
Twrph1=2 20ns
[    0.590000] s3c24xx-nand s3c2440-nand: NAND hardware ECC
[    0.595000] NAND device: Manufacturer ID: 0xec, Chip ID: 0xaa (Samsung NAND 
256MiB 1,8V 8-bit)
[    0.610000] mousedev: PS/2 mouse device common for all mice
[    0.615000] samsung-ts s3c2440-ts: driver attached, registering input 
device
[    0.620000] input: S3C24XX TouchScreen as /devices/virtual/input/input0
[    0.625000] input: PCF50633 PMU events as /devices/virtual/input/input1
[    0.635000] pcf50633-rtc pcf50633-rtc: rtc core: registered pcf50633-rtc as 
rtc0
[    0.640000] i2c /dev entries driver
[    0.650000] S3C2410 Watchdog Timer, (c) 2004 Simtec Electronics
[    0.655000] s3c2410-wdt s3c2410-wdt: watchdog inactive, reset disabled, irq 
disabled
[    0.660000] cpuidle: using governor ladder
[    0.665000] s3c-sdi s3c2440-sdi: powered down.
[    0.670000] s3c-sdi s3c2440-sdi: mmc0 - using pio, sw SDIO IRQ
[    0.680000] TCP westwood registered
[    0.685000] NET: Registered protocol family 17
[    0.685000] Registering the dns_resolver key type
[    0.695000] turn off boot console earlycon0

It is now waiting for the rootfs that isn't there(since /dev/mmcblk0p1 depend 
on a driver that is not mainline and that I only applied the patch to test on 
top of the master branch of linux-next).

Tested-by: Denis 'GNUtoo' Carikli" <GNUtoo at no-log.org>

Denis.