[PATCH v5 8/8] ARM: shmobile: genmai-reference: Enable MTU2 in device tree
Simon Horman
horms at verge.net.au
Tue Jul 15 04:36:06 PDT 2014
On Tue, Jul 15, 2014 at 05:58:15PM +0900, Simon Horman wrote:
> On Tue, Jul 15, 2014 at 05:54:32PM +0900, Simon Horman wrote:
> > On Thu, Jul 10, 2014 at 11:54:30AM +0200, Wolfram Sang wrote:
> > > On Wed, Jul 09, 2014 at 03:12:44PM +0200, Laurent Pinchart wrote:
> > > > No more device needs to be added from platform code when booting the
> > > > reference platform, move MTU2 registration from setup-r7s72100.c to
> > > > board-genmai.c and remove the now empty r7s72100_add_dt_devices()
> > > > function.
> > > >
> > > > As the genmai_add_standard_devices() function is now identical to the
> > > > default init_machine implementation, remove it as well.
> > > >
> > > > Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas at ideasonboard.com>
> > >
> > > Yay, tasty!
> > >
> > > Reviewed-by: Wolfram Sang <wsa at sang-engineering.com>
> >
> > Hi Laurent,
> >
> > I am having some trouble with this patch.
> > In particular the shmobile defconfig with an initrd added
> > (to compensate for the lack of ethernet and thus NFS) does
> > not seem to make it to userspace with this patch applied :(
> >
> > I am dropping it for now, but could you look into it?
>
> I have likewise dropped "ARM: shmobile: r7s72100: Add MTU2 device to DT"
> for now.
I believe that I have tracked down the problem and that it is
in "ARM: shmobile: r7s72100: Add MTU2 device to DT".
I will describe it in a response to that patch.
> > For the record it seems to stop right near the end.
> > A bad boot looks like this:
> >
> > Booting Linux on physical CPU 0x0
> > Linux version 3.16.0-rc3-00750-g004c383-dirty (horms at ayumi.isobedori.kobe.vergenet.net) (gcc version 4.6.3 (GCC) ) #463 SMP Tue Jul 15 16:58:01 JST 2014
> > CPU: ARMv7 Processor [413fc090] revision 0 (ARMv7), cr=18c5347d
> > CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
> > Machine model: Genmai
> > debug: ignoring loglevel setting.
> > Memory policy: Data cache writeback
> > On node 0 totalpages: 32768
> > free_area_init_node: node 0, pgdat c071f640, node_mem_map c7ef9000
> > Normal zone: 256 pages used for memmap
> > Normal zone: 0 pages reserved
> > Normal zone: 32768 pages, LIFO batch:7
> > CPU: All CPU(s) started in SVC mode.
> > PERCPU: Embedded 5 pages/cpu @c7eea000 s7488 r0 d12992 u32768
> > pcpu-alloc: s7488 r0 d12992 u32768 alloc=8*4096
> > pcpu-alloc: [0] 0
> > Built 1 zonelists in Zone order, mobility grouping on. Total pages: 32512
> > Kernel command line: console=ttySC2,115200 ignore_loglevel rw root=/dev/nfs ip=dhcp
> > PID hash table entries: 512 (order: -1, 2048 bytes)
> > Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
> > Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
> > Memory: 122388K/131072K available (4327K kernel code, 227K rwdata, 1016K rodata, 1691K init, 197K bss, 8684K reserved, 0K highmem)
> > Virtual kernel memory layout:
> > vector : 0xffff0000 - 0xffff1000 ( 4 kB)
> > fixmap : 0xffc00000 - 0xffe00000 (2048 kB)
> > vmalloc : 0xc8800000 - 0xff000000 ( 872 MB)
> > lowmem : 0xc0000000 - 0xc8000000 ( 128 MB)
> > pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)
> > .text : 0xc0008000 - 0xc0540fc4 (5348 kB)
> > .init : 0xc0541000 - 0xc06e7d40 (1692 kB)
> > .data : 0xc06e8000 - 0xc0720dc0 ( 228 kB)
> > .bss : 0xc0720dc8 - 0xc07521fc ( 198 kB)
> > Hierarchical RCU implementation.
> > RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=1.
> > RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=1
> > NR_IRQS:16 nr_irqs:16 16
> > clocksource_of_init: no matching clocksources found
> > sched_clock: 32 bits at 100 Hz, resolution 10000000ns, wraps every 21474836480000000ns
> > Console: colour dummy device 80x30
> > Calibrating delay loop (skipped) preset value.. 266.66 BogoMIPS (lpj=1333333)
> > pid_max: default: 32768 minimum: 301
> > Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
> > Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
> > CPU: Testing write buffer coherency: ok
> > CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
> > Setting up static identity map for 0x84405f8 - 0x8440650
> > Brought up 1 CPUs
> > SMP: Total of 1 processors activated.
> > CPU: All CPU(s) started in SVC mode.
> > devtmpfs: initialized
> > VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4
> > pinctrl core: initialized pinctrl subsystem
> > regulator-dummy: no parameters
> > NET: Registered protocol family 16
> > DMA: preallocated 256 KiB pool for atomic coherent allocations
> > No ATAGs?
> > hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watchpoint registers.
> > hw-breakpoint: maximum watchpoint size is 4 bytes.
> > vgaarb: loaded
> > SCSI subsystem initialized
> > libata version 3.00 loaded.
> > usbcore: registered new interface driver usbfs
> > usbcore: registered new interface driver hub
> > usbcore: registered new device driver usb
> > media: Linux media interface: v0.10
> > Linux video capture interface: v2.00
> > sh_mtu2 fcff0000.timer: ch0: used for clock events
> > sh_mtu2 fcff0000.timer: ch0: used for periodic clock events
> > Advanced Linux Sound Architecture Driver Initialized.
> > NET: Registered protocol family 2
> > TCP established hash table entries: 1024 (order: 0, 4096 bytes)
> > TCP bind hash table entries: 1024 (order: 1, 8192 bytes)
> > TCP: Hash tables configured (established 1024 bind 1024)
> > TCP: reno registered
> > UDP hash table entries: 256 (order: 1, 8192 bytes)
> > UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)
> > NET: Registered protocol family 1
> > RPC: Registered named UNIX socket transport module.
> > RPC: Registered udp transport module.
> > RPC: Registered tcp transport module.
> > RPC: Registered tcp NFSv4.1 backchannel transport module.
> > PCI: CLS 0 bytes, default 64
> > futex hash table entries: 256 (order: 2, 16384 bytes)
> > NFS: Registering the id_resolver key type
> > Key type id_resolver registered
> > Key type id_legacy registered
> > nfs4filelayout_init: NFSv4 File Layout Driver Registering...
> > msgmni has been set to 239
> > Block layer SCSI generic (bsg) driver version 0.4 loaded (major 252)
> > io scheduler noop registered
> > io scheduler deadline registered
> > io scheduler cfq registered (default)
> > Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
> > SuperH (H)SCI(F) driver initialized
> > e8008000.serial: ttySC2 at MMIO 0xe8008000 (irq = 231, base_baud = 0) is a scif
> > console [ttySC2] enabled
> > [drm] Initialized drm 1.1.0 20060810
> > renesas_spi e800e800.spi: probed
> > ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
> > ehci-pci: EHCI PCI platform driver
> > ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
> > ohci-pci: OHCI PCI platform driver
> > mousedev: PS/2 mouse device common for all mice
> > usbcore: registered new interface driver usbhid
> > usbhid: USB HID core driver
> > TCP: cubic registered
> > NET: Registered protocol family 10
> > sit: IPv6 over IPv4 tunneling driver
> > NET: Registered protocol family 17
> > Key type dns_resolver registered
> > drivers/rtc/hctosys.c: unable to open rtc device (rtc0)
> >
> >
> > And a good one looks like this:
> >
> >
> > Booting Linux on physical CPU 0x0
> > Linux version 3.16.0-rc3-00751-gd14f001 (horms at ayumi.isobedori.kobe.vergenet.net) (gcc version 4.6.3 (GCC) ) #461 SMP Tue Jul 15 16:48:13 JST 2014
> > CPU: ARMv7 Processor [413fc090] revision 0 (ARMv7), cr=18c5347d
> > CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
> > Machine model: Genmai
> > debug: ignoring loglevel setting.
> > Memory policy: Data cache writeback
> > On node 0 totalpages: 32768
> > free_area_init_node: node 0, pgdat c071f640, node_mem_map c7ef9000
> > Normal zone: 256 pages used for memmap
> > Normal zone: 0 pages reserved
> > Normal zone: 32768 pages, LIFO batch:7
> > CPU: All CPU(s) started in SVC mode.
> > PERCPU: Embedded 5 pages/cpu @c7eea000 s7488 r0 d12992 u32768
> > pcpu-alloc: s7488 r0 d12992 u32768 alloc=8*4096
> > pcpu-alloc: [0] 0
> > Built 1 zonelists in Zone order, mobility grouping on. Total pages: 32512
> > Kernel command line: console=ttySC2,115200 ignore_loglevel rw root=/dev/nfs ip=dhcp
> > PID hash table entries: 512 (order: -1, 2048 bytes)
> > Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
> > Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
> > Memory: 122388K/131072K available (4327K kernel code, 227K rwdata, 1016K rodata, 1691K init, 197K bss, 8684K reserved, 0K highmem)
> > Virtual kernel memory layout:
> > vector : 0xffff0000 - 0xffff1000 ( 4 kB)
> > fixmap : 0xffc00000 - 0xffe00000 (2048 kB)
> > vmalloc : 0xc8800000 - 0xff000000 ( 872 MB)
> > lowmem : 0xc0000000 - 0xc8000000 ( 128 MB)
> > pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)
> > .text : 0xc0008000 - 0xc0540fc4 (5348 kB)
> > .init : 0xc0541000 - 0xc06e7d40 (1692 kB)
> > .data : 0xc06e8000 - 0xc0720dc0 ( 228 kB)
> > .bss : 0xc0720dc8 - 0xc07521fc ( 198 kB)
> > Hierarchical RCU implementation.
> > RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=1.
> > RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=1
> > NR_IRQS:16 nr_irqs:16 16
> > clocksource_of_init: no matching clocksources found
> > sched_clock: 32 bits at 100 Hz, resolution 10000000ns, wraps every 21474836480000000ns
> > Console: colour dummy device 80x30
> > Calibrating delay loop (skipped) preset value.. 266.66 BogoMIPS (lpj=1333333)
> > pid_max: default: 32768 minimum: 301
> > Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
> > Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
> > CPU: Testing write buffer coherency: ok
> > CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
> > Setting up static identity map for 0x84405f8 - 0x8440650
> > Brought up 1 CPUs
> > SMP: Total of 1 processors activated.
> > CPU: All CPU(s) started in SVC mode.
> > devtmpfs: initialized
> > VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4
> > pinctrl core: initialized pinctrl subsystem
> > regulator-dummy: no parameters
> > NET: Registered protocol family 16
> > DMA: preallocated 256 KiB pool for atomic coherent allocations
> > No ATAGs?
> > hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watchpoint registers.
> > hw-breakpoint: maximum watchpoint size is 4 bytes.
> > vgaarb: loaded
> > SCSI subsystem initialized
> > libata version 3.00 loaded.
> > usbcore: registered new interface driver usbfs
> > usbcore: registered new interface driver hub
> > usbcore: registered new device driver usb
> > media: Linux media interface: v0.10
> > Linux video capture interface: v2.00
> > sh_mtu2 sh-mtu2: ch0: used for clock events
> > sh_mtu2 sh-mtu2: ch0: used for periodic clock events
> > Advanced Linux Sound Architecture Driver Initialized.
> > NET: Registered protocol family 2
> > TCP established hash table entries: 1024 (order: 0, 4096 bytes)
> > TCP bind hash table entries: 1024 (order: 1, 8192 bytes)
> > TCP: Hash tables configured (established 1024 bind 1024)
> > TCP: reno registered
> > UDP hash table entries: 256 (order: 1, 8192 bytes)
> > UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)
> > NET: Registered protocol family 1
> > RPC: Registered named UNIX socket transport module.
> > RPC: Registered udp transport module.
> > RPC: Registered tcp transport module.
> > RPC: Registered tcp NFSv4.1 backchannel transport module.
> > PCI: CLS 0 bytes, default 64
> > futex hash table entries: 256 (order: 2, 16384 bytes)
> > NFS: Registering the id_resolver key type
> > Key type id_resolver registered
> > Key type id_legacy registered
> > nfs4filelayout_init: NFSv4 File Layout Driver Registering...
> > msgmni has been set to 239
> > Block layer SCSI generic (bsg) driver version 0.4 loaded (major 252)
> > io scheduler noop registered
> > io scheduler deadline registered
> > io scheduler cfq registered (default)
> > Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
> > SuperH (H)SCI(F) driver initialized
> > e8008000.serial: ttySC2 at MMIO 0xe8008000 (irq = 231, base_baud = 0) is a scif
> > console [ttySC2] enabled
> > [drm] Initialized drm 1.1.0 20060810
> > renesas_spi e800e800.spi: probed
> > ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
> > ehci-pci: EHCI PCI platform driver
> > ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
> > ohci-pci: OHCI PCI platform driver
> > mousedev: PS/2 mouse device common for all mice
> > usbcore: registered new interface driver usbhid
> > usbhid: USB HID core driver
> > TCP: cubic registered
> > NET: Registered protocol family 10
> > sit: IPv6 over IPv4 tunneling driver
> > NET: Registered protocol family 17
> > Key type dns_resolver registered
> > drivers/rtc/hctosys.c: unable to open rtc device (rtc0)
> > ALSA device list:
> > No soundcards found.
> > Freeing unused kernel memory: 1688K (c0541000 - c06e7000)
> >
> >
> > boot (Linux 3.16.0-rc3-00751-gd14f001, BusyBox v1.16.0.git, kexec-tools 2.0.1-git)
> > / #
> > --
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