Hi,
this short series aims to add basic support for the
Gen 3 R-Car M3-W (r8a7796) SoC.
It has few bells and whistles but is sufficient to bring up
an r8a7795/salvator-x. I have provided a boot-log at the bottom
of this email in case it is of interest.
Dependency:
"[PATCH 0/4] clk: renesas: cpg-mssr: Add support for R-Car M3-W"
Availability:
In order to aid review this series, its dependency (above)
and the related patch "serial: sh-sci: Document SoC specific bindings for
r8a7796", which has been posted separately, are available at:
git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas.git topic/r8a7796-v2
To be entirely clear, at the time of writing I have _not_ queued up this
series for mainline.
Changes since v1:
* Move L2_CA57 node under cpus node and include reg property
* Omit status = "disabled" from scif_clk node
* Accumulate Ack and Reviewed-by tags
Simon Horman (1):
arm64: dts: r8a7796: Add Renesas R8A7796 SoC support
Takeshi Kihara (2):
arm64: dts: salvator-x: add Salvator-X board on R8A7796 SoC
arm64: defconfig: enable Renesas R8A7796 SoC
Documentation/devicetree/bindings/arm/shmobile.txt | 4 +
arch/arm64/Kconfig.platforms | 6 ++
arch/arm64/boot/dts/renesas/Makefile | 1 +
arch/arm64/boot/dts/renesas/r8a7796-salvator-x.dts | 45 ++++++++
arch/arm64/boot/dts/renesas/r8a7796.dtsi | 120 +++++++++++++++++++++
arch/arm64/configs/defconfig | 1 +
6 files changed, 177 insertions(+)
create mode 100644 arch/arm64/boot/dts/renesas/r8a7796-salvator-x.dts
create mode 100644 arch/arm64/boot/dts/renesas/r8a7796.dtsi
Boot Log:
The following boot log was generated by booting this patch set,
in its form in the topic/r8a7796 branch. It was compiled using
the ARM64 defconfig with initrd enabled to provide a working userspace.
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 4.6.0-rc1+ (horms@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx) (gcc version 4.8.5 (Linaro GCC 4.8-2015.06) ) #147 SMP PREEMPT Mon May 23 10:16:34 JST 2016
[ 0.000000] Boot CPU: AArch64 Processor [411fd073]
[ 0.000000] debug: ignoring loglevel setting.
[ 0.000000] efi: Getting EFI parameters from FDT:
[ 0.000000] efi: UEFI not found.
[ 0.000000] cma: Reserved 16 MiB at 0x00000000bf000000
[ 0.000000] On node 0 totalpages: 1015808
[ 0.000000] DMA zone: 7680 pages used for memmap
[ 0.000000] DMA zone: 0 pages reserved
[ 0.000000] DMA zone: 491520 pages, LIFO batch:31
[ 0.000000] Normal zone: 8192 pages used for memmap
[ 0.000000] Normal zone: 524288 pages, LIFO batch:31
[ 0.000000] psci: probing for conduit method from DT.
[ 0.000000] psci: PSCIv1.0 detected in firmware.
[ 0.000000] psci: Using standard PSCI v0.2 function IDs
[ 0.000000] psci: Trusted OS migration not required
[ 0.000000] percpu: Embedded 20 pages/cpu @ffffffc63ffad000 s43008 r8192 d30720 u81920
[ 0.000000] pcpu-alloc: s43008 r8192 d30720 u81920 alloc=20*4096
[ 0.000000] pcpu-alloc: [0] 0
[ 0.000000] Detected PIPT I-cache on CPU0
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 999936
[ 0.000000] Kernel command line: ignore_loglevel rw root=/dev/nfs ip=dhcp nfsroot=10.3.3.135:/srv/nfs/salvator-x-arm64
[ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
[ 0.000000] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes)
[ 0.000000] Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes)
[ 0.000000] software IO TLB [mem 0xbafff000-0xbefff000] (64MB) mapped at [ffffffc07afff000-ffffffc07effefff]
[ 0.000000] Memory: 3896020K/4063232K available (6796K kernel code, 619K rwdata, 2880K rodata, 2256K init, 241K bss, 150828K reserved, 16384K cma-reserved)
[ 0.000000] Virtual kernel memory layout:
[ 0.000000] modules : 0xffffff8000000000 - 0xffffff8008000000 ( 128 MB)
[ 0.000000] vmalloc : 0xffffff8008000000 - 0xffffffbdbfff0000 ( 246 GB)
[ 0.000000] .text : 0xffffff8008080000 - 0xffffff8008721000 ( 6788 KB)
[ 0.000000] .rodata : 0xffffff8008721000 - 0xffffff80089f5000 ( 2896 KB)
[ 0.000000] .init : 0xffffff80089f5000 - 0xffffff8008c29000 ( 2256 KB)
[ 0.000000] .data : 0xffffff8008c29000 - 0xffffff8008cc3e00 ( 620 KB)
[ 0.000000] vmemmap : 0xffffffbdc0000000 - 0xffffffbfc0000000 ( 8 GB maximum)
[ 0.000000] 0xffffffbdc0200000 - 0xffffffbdd9000000 ( 398 MB actual)
[ 0.000000] fixed : 0xffffffbffe7fd000 - 0xffffffbffec00000 ( 4108 KB)
[ 0.000000] PCI I/O : 0xffffffbffee00000 - 0xffffffbfffe00000 ( 16 MB)
[ 0.000000] memory : 0xffffffc008000000 - 0xffffffc640000000 ( 25472 MB)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.000000] Preemptible hierarchical RCU implementation.
[ 0.000000] Build-time adjustment of leaf fanout to 64.
[ 0.000000] RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=1.
[ 0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=64, nr_cpu_ids=1
[ 0.000000] NR_IRQS:64 nr_irqs:64 0
[ 0.000000] Architected cp15 timer(s) running at 8.33MHz (virt).
[ 0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x1ec02923e, max_idle_ns: 440795202125 ns
[ 0.000003] sched_clock: 56 bits at 8MHz, resolution 120ns, wraps every 2199023255496ns
[ 0.000076] Console: colour dummy device 80x25
[ 0.000378] console [tty0] enabled
[ 0.000400] Calibrating delay loop (skipped), value calculated using timer frequency.. 16.66 BogoMIPS (lpj=33333)
[ 0.000418] pid_max: default: 32768 minimum: 301
[ 0.000460] Security Framework initialized
[ 0.000495] Mount-cache hash table entries: 8192 (order: 4, 65536 bytes)
[ 0.000506] Mountpoint-cache hash table entries: 8192 (order: 4, 65536 bytes)
[ 0.001210] ASID allocator initialised with 65536 entries
[ 0.001734] EFI services will not be available.
[ 0.001842] Brought up 1 CPUs
[ 0.001852] SMP: Total of 1 processors activated.
[ 0.001866] CPU: All CPU(s) started at EL1
[ 0.002633] devtmpfs: initialized
[ 0.003209] DMI not present or invalid.
[ 0.003405] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
[ 0.003784] pinctrl core: initialized pinctrl subsystem
[ 0.004583] NET: Registered protocol family 16
[ 0.016073] cpuidle: using governor menu
[ 0.016219] vdso: 2 pages (1 code @ ffffff8008727000, 1 data @ ffffff8008c30000)
[ 0.016260] hw-breakpoint: found 6 breakpoint and 4 watchpoint registers.
[ 0.016757] DMA: preallocated 256 KiB pool for atomic allocations
[ 0.016913] Serial: AMBA PL011 UART driver
[ 0.037039] HugeTLB registered 2 MB page size, pre-allocated 0 pages
[ 0.048850] vgaarb: loaded
[ 0.049050] SCSI subsystem initialized
[ 0.052301] libata version 3.00 loaded.
[ 0.052495] usbcore: registered new interface driver usbfs
[ 0.052532] usbcore: registered new interface driver hub
[ 0.052568] usbcore: registered new device driver usb
[ 0.052650] pps_core: LinuxPPS API ver. 1 registered
[ 0.052659] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@xxxxxxxx>
[ 0.052683] PTP clock support registered
[ 0.052760] dmi: Firmware registration failed.
[ 0.053053] Advanced Linux Sound Architecture Driver Initialized.
[ 0.054018] clocksource: Switched to clocksource arch_sys_counter
[ 0.054161] VFS: Disk quotas dquot_6.6.0
[ 0.054205] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[ 0.064167] NET: Registered protocol family 2
[ 0.064575] TCP established hash table entries: 32768 (order: 6, 262144 bytes)
[ 0.064691] TCP bind hash table entries: 32768 (order: 7, 524288 bytes)
[ 0.065136] TCP: Hash tables configured (established 32768 bind 32768)
[ 0.065242] UDP hash table entries: 2048 (order: 4, 65536 bytes)
[ 0.065275] UDP-Lite hash table entries: 2048 (order: 4, 65536 bytes)
[ 0.065440] NET: Registered protocol family 1
[ 0.065886] RPC: Registered named UNIX socket transport module.
[ 0.065904] RPC: Registered udp transport module.
[ 0.065911] RPC: Registered tcp transport module.
[ 0.065918] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 0.065946] PCI: CLS 0 bytes, default 128
[ 0.112788] kvm [1]: HYP mode not available
[ 0.114548] futex hash table entries: 256 (order: 3, 32768 bytes)
[ 0.114628] audit: initializing netlink subsys (disabled)
[ 0.114674] audit: type=2000 audit(0.111:1): initialized
[ 0.119392] workingset: timestamp_bits=44 max_order=20 bucket_order=0
[ 0.128860] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[ 0.130513] NFS: Registering the id_resolver key type
[ 0.130559] Key type id_resolver registered
[ 0.130567] Key type id_legacy registered
[ 0.130774] fuse init (API version 7.24)
[ 0.131222] 9p: Installing v9fs 9p2000 file system support
[ 0.132858] io scheduler noop registered
[ 0.133031] io scheduler cfq registered (default)
[ 0.135826] xenfs: not registering filesystem on non-xen platform
[ 0.141149] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
[ 0.143084] SuperH (H)SCI(F) driver initialized
[ 0.143265] e6e88000.serial: ttySC0 at MMIO 0xe6e88000 (irq = 6, base_baud = 0) is a scif
[ 0.812694] console [ttySC0] enabled
[ 0.816631] msm_serial: driver initialized
[ 0.848929] loop: module loaded
[ 0.853563] tun: Universal TUN/TAP device driver, 1.6
[ 0.859288] tun: (C) 1999-2004 Max Krasnyansky <maxk@xxxxxxxxxxxx>
[ 0.865887] e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k
[ 0.871853] e1000e: Copyright(c) 1999 - 2015 Intel Corporation.
[ 0.878013] igb: Intel(R) Gigabit Ethernet Network Driver - version 5.3.0-k
[ 0.885054] igb: Copyright (c) 2007-2014 Intel Corporation.
[ 0.890695] igbvf: Intel(R) Gigabit Virtual Function Network Driver - version 2.0.2-k
[ 0.898560] igbvf: Copyright (c) 2009 - 2012 Intel Corporation.
[ 0.904542] sky2: driver version 1.30
[ 0.908582] VFIO - User Level meta-driver version: 0.3
[ 0.916099] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 0.922849] ehci-pci: EHCI PCI platform driver
[ 0.927400] ehci-platform: EHCI generic platform driver
[ 0.932833] ehci-msm: Qualcomm On-Chip EHCI Host Controller
[ 0.938493] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[ 0.944738] ohci-pci: OHCI PCI platform driver
[ 0.949248] ohci-platform: OHCI generic platform driver
[ 0.954723] usbcore: registered new interface driver usb-storage
[ 0.961487] mousedev: PS/2 mouse device common for all mice
[ 0.967788] i2c /dev entries driver
[ 0.972228] sdhci: Secure Digital Host Controller Interface driver
[ 0.978839] sdhci: Copyright(c) Pierre Ossman
[ 0.983343] Synopsys Designware Multimedia Card Interface Driver
[ 0.989639] sdhci-pltfm: SDHCI platform and OF driver helper
[ 0.995574] ledtrig-cpu: registered to indicate activity on CPUs
[ 1.002270] usbcore: registered new interface driver usbhid
[ 1.008128] usbhid: USB HID core driver
[ 1.013169] NET: Registered protocol family 17
[ 1.018115] 9pnet: Installing 9P2000 support
[ 1.022521] Key type dns_resolver registered
[ 1.027443] registered taskstats version 1
[ 1.031986] hctosys: unable to open rtc device (rtc0)
[ 13.085570] ALSA device list:
[ 13.088549] No soundcards found.
[ 13.093446] Freeing unused kernel memory: 2256K (ffffff80089f5000 - ffffff8008c29000)
boot (Linux 4.6.0-rc1+, BusyBox v1.16.0.git, kexec-tools 2.0.1-git)
/ # cat /proc/interrupts
CPU0
3: 252 GIC-0 27 Edge arch_timer
6: 75 GIC-0 196 Level e6e88000.serial:mux
IPI0: 0 Rescheduling interrupts
IPI1: 0 Function call interrupts
IPI2: 0 CPU stop interrupts
IPI3: 0 Timer broadcast interrupts
IPI4: 0 IRQ work interrupts
IPI5: 0 CPU wake-up interrupts
Err: 0
