[PATCH v5 8/8] ARM: shmobile: genmai-reference: Enable MTU2 in device tree
Simon Horman
horms at verge.net.au
Tue Jul 15 01:58:15 PDT 2014
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.
>
> 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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