[PATCH v7 22/22] doc: sifive: fu540: Add description for RISC-V FU540 U-Boot SPL
Pragnesh Patel
pragnesh.patel at sifive.com
Sun May 3 08:13:37 CEST 2020
Hi Anup,
>-----Original Message-----
>From: Anup Patel <anup at brainfault.org>
>Sent: 03 May 2020 10:04
>To: Pragnesh Patel <pragnesh.patel at sifive.com>
>Cc: U-Boot Mailing List <u-boot at lists.denx.de>; Atish Patra
><atish.patra at wdc.com>; Palmer Dabbelt <palmerdabbelt at google.com>; Bin
>Meng <bmeng.cn at gmail.com>; Paul Walmsley <paul.walmsley at sifive.com>;
>Jagan Teki <jagan at amarulasolutions.com>; Troy Benjegerdes
><troy.benjegerdes at sifive.com>; Anup Patel <anup.patel at wdc.com>; Sagar
>Kadam <sagar.kadam at sifive.com>; Rick Chen <rick at andestech.com>; Joe
>Hershberger <joe.hershberger at ni.com>
>Subject: Re: [PATCH v7 22/22] doc: sifive: fu540: Add description for RISC-V
>FU540 U-Boot SPL
>
>[External Email] Do not click links or attachments unless you recognize the
>sender and know the content is safe
>
>On Sat, May 2, 2020 at 3:41 PM Pragnesh Patel <pragnesh.patel at sifive.com>
>wrote:
>>
>> Add descriptions about U-Boot SPL feature and how to build and run
>> from MMC.
>>
>> Signed-off-by: Pragnesh Patel <pragnesh.patel at sifive.com>
>> Signed-off-by: Jagan Teki <jagan at amarulasolutions.com>
>> ---
>> doc/board/sifive/fu540.rst | 376
>> +++++++++++++++++++++++++++++++++++++
>> 1 file changed, 376 insertions(+)
>>
>> diff --git a/doc/board/sifive/fu540.rst b/doc/board/sifive/fu540.rst
>> index 1c3d4740f3..2911e3652e 100644
>> --- a/doc/board/sifive/fu540.rst
>> +++ b/doc/board/sifive/fu540.rst
>> @@ -38,6 +38,9 @@ TODO:
>> reg = <0x0 0x2000000 0x0 0xc0000>;
>> };
>>
>> +Booting from MMC using FSBL
>> +---------------------------
>> +
>> Building
>> --------
>>
>> @@ -428,3 +431,376 @@ as well.
>>
>> Please press Enter to activate this console.
>> / #
>> +
>> +Booting from MMC using U-Boot SPL
>> +---------------------------------
>> +
>> +Building
>> +--------
>> +
>> +Before building U-Boot SPL, OpenSBI must be built first. OpenSBI can
>> +be cloned and built for FU540 as below:
>> +
>> +.. code-block:: console
>> +
>> + git clone https://github.com/riscv/opensbi.git
>> + cd opensbi
>> + make PLATFORM=generic FW_DYNAMIC=y
>> +
>> +Copy OpenSBI FW_DYNAMIC image
>> +(build/platform/sifive/fu540/firmware/fw_dynamic.bin) into U-Boot
>> +root directory
>
>The path for fw_dynamic.bin should be:
>build/platform/generic/firmware/fw_dynamic.bin
Good catch, will update in v8.
>
>> +
>> +.. code-block:: console
>> +
>> + cp build/platform/sifive/fu540/firmware/fw_dynamic.bin
>> + <u-boot-dir>
>
>Same as above.
Will update in v8.
>
>> +
>> +Now build the U-Boot SPL and U-Boot proper
>> +
>> +.. code-block:: console
>> +
>> + cd <U-Boot-dir>
>> + make sifive_fu540_defconfig
>> + make
>> +
>> +This will generate spl/u-boot-spl.bin and FIT image (u-boot.itb)
>> +
>> +
>> +Flashing
>> +--------
>> +
>> +ZSBL loads the U-Boot SPL (u-boot-spl.bin) from a partition with GUID
>> +type
>> +5B193300-FC78-40CD-8002-E86C45580B47
>> +
>> +U-Boot SPL expects a U-Boot FIT image (u-boot.itb) from a partition
>> +with GUID type 2E54B353-1271-4842-806F-E436D6AF6985
>> +
>> +FIT image (u-boot.itb) is a combination of fw_dynamic.bin,
>> +u-boot-nodtb.bin and device tree blob (hifive-unleashed-a00.dtb)
>> +
>> +Format the SD card (make sure the disk has GPT, otherwise use gdisk
>> +to switch)
>> +
>> +.. code-block:: none
>> +
>> + # sudo sgdisk --clear \
>> + > --set-alignment=2 \
>> + > --new=1:34:2081 --change-name=1:loader1 --typecode=1:5B193300-
>FC78-40CD-8002-E86C45580B47 \
>> + > --new=2:2082:10273 --change-name=2:loader2 --
>typecode=2:2E54B353-1271-4842-806F-E436D6AF6985 \
>> + > --new=3:10274: --change-name=3:rootfs --typecode=3:0FC63DAF-
>8483-4772-8E79-3D69D8477DE4 \
>> + > /dev/sda
>> +
>> +Program the SD card
>> +
>> +.. code-block:: none
>> +
>> + sudo dd if=spl/u-boot-spl.bin of=/dev/sda seek=34
>> + sudo dd if=u-boot.itb of=/dev/sda seek=2082
>> +
>> +Booting
>> +-------
>> +Once you plugin the sdcard and power up, you should see the U-Boot
>prompt.
>> +
>> +Sample boot log from HiFive Unleashed board
>> +-------------------------------------------
>> +
>> +.. code-block:: none
>> +
>> + U-Boot SPL 2020.04-rc2-00109-g63efc7e07e-dirty (Apr 30 2020 -
>13:52:36 +0530)
>> + Trying to boot from MMC1
>> +
>> +
>> + U-Boot 2020.04-rc2-00109-g63efc7e07e-dirty (Apr 30 2020 -
>> + 13:52:36 +0530)
>> +
>> + CPU: rv64imafdc
>> + Model: SiFive HiFive Unleashed A00
>> + DRAM: 8 GiB
>> + MMC: spi at 10050000:mmc at 0: 0
>> + In: serial at 10010000
>> + Out: serial at 10010000
>> + Err: serial at 10010000
>> + Board serial number should not be 0 !!
>> + Net:
>> + Warning: ethernet at 10090000 (eth0) using random MAC address -
>96:06:92:18:eb:04
>> + eth0: ethernet at 10090000
>> + Hit any key to stop autoboot: 0
>> + => version
>> + U-Boot 2020.04-rc2-00109-g63efc7e07e-dirty (Apr 30 2020 -
>> + 13:52:36 +0530)
>> +
>> + riscv64-unknown-linux-gnu-gcc (crosstool-NG 1.24.0.37-3f461da) 9.2.0
>> + GNU ld (crosstool-NG 1.24.0.37-3f461da) 2.32
>> + => mmc info
>> + Device: spi at 10050000:mmc at 0
>> + Manufacturer ID: 3
>> + OEM: 5344
>> + Name: SC16G
>> + Bus Speed: 20000000
>> + Mode: SD Legacy
>> + Rd Block Len: 512
>> + SD version 2.0
>> + High Capacity: Yes
>> + Capacity: 14.8 GiB
>> + Bus Width: 1-bit
>> + Erase Group Size: 512 Bytes
>> + => mmc part
>> +
>> + Partition Map for MMC device 0 -- Partition Type: EFI
>> +
>> + Part Start LBA End LBA Name
>> + Attributes
>> + Type GUID
>> + Partition GUID
>> + 1 0x00000022 0x00000821 "loader1"
>> + attrs: 0x0000000000000000
>> + type: 5b193300-fc78-40cd-8002-e86c45580b47
>> + guid: 66e2b5d2-74db-4df8-ad6f-694b3617f87f
>> + 2 0x00000822 0x00002821 "loader2"
>> + attrs: 0x0000000000000000
>> + type: 2e54b353-1271-4842-806f-e436d6af6985
>> + guid: 8befaeaf-bca0-435d-b002-e201f37c0a2f
>> + 3 0x00002822 0x01dacbde "rootfs"
>> + attrs: 0x0000000000000000
>> + type: 0fc63daf-8483-4772-8e79-3d69d8477de4
>> + type: linux
>> + guid: 9faa81b6-39b1-4418-af5e-89c48f29c20d
>> +
>> +Now you can configure your networking, tftp server and use tftp boot
>> +method to load uImage.
>> +
>> +.. code-block:: none
>> +
>> + => setenv serverip 192.168.0.103
>> + => setenv serverip 192.168.0.102
>> + => tftpboot 0x83000000 fit.itb
>> + ethernet at 10090000: PHY present at 0
>> + ethernet at 10090000: Starting autonegotiation...
>> + ethernet at 10090000: Autonegotiation complete
>> + ethernet at 10090000: link up, 100Mbps full-duplex (lpa: 0x4de1)
>> + *** ERROR: `ipaddr' not set
>> + => setenv serverip 192.168.0.103
>> + => setenv ipaddr 192.168.0.102
>> + => tftpboot 0x83000000 fit.itb
>> + ethernet at 10090000: PHY present at 0
>> + ethernet at 10090000: Starting autonegotiation...
>> + ethernet at 10090000: Autonegotiation complete
>> + ethernet at 10090000: link up, 100Mbps full-duplex (lpa: 0x4de1)
>> + Using ethernet at 10090000 device
>> + TFTP from server 192.168.0.103; our IP address is 192.168.0.102
>> + Filename 'fit.itb'.
>> + Load address: 0x83000000
>> + Loading:
>#################################################################
>> +
>#################################################################
>> +
>#################################################################
>> +
>#################################################################
>> +
>#################################################################
>> +
>#################################################################
>> +
>#################################################################
>> +
>#################################################################
>> +
>#################################################################
>> +
>#################################################################
>> +
>#################################################################
>> +
>#################################################################
>> +
>#################################################################
>> +
>#################################################################
>> +
>#################################################################
>> +
>#################################################################
>> +
>#################################################################
>> + #######################################################
>> + 4.2 MiB/s
>> + done
>> + Bytes transferred = 14254183 (d98067 hex)
>> + => bootm 0x83000000
>> + ## Loading kernel from FIT Image at 83000000 ...
>> + Using 'config-1' configuration
>> + Trying 'kernel at 1' kernel subimage
>> + Description: Linux kernel
>> + Type: Kernel Image
>> + Compression: uncompressed
>> + Data Start: 0x830000d8
>> + Data Size: 9676752 Bytes = 9.2 MiB
>> + Architecture: RISC-V
>> + OS: Linux
>> + Load Address: 0x80200000
>> + Entry Point: 0x80200000
>> + Verifying Hash Integrity ... OK
>> + ## Loading ramdisk from FIT Image at 83000000 ...
>> + Using 'config-1' configuration
>> + Trying 'ramdisk at 1' ramdisk subimage
>> + Description: ramdisk
>> + Type: RAMDisk Image
>> + Compression: gzip compressed
>> + Data Start: 0x8393c490
>> + Data Size: 4568674 Bytes = 4.4 MiB
>> + Architecture: RISC-V
>> + OS: Linux
>> + Load Address: 0x82000000
>> + Entry Point: unavailable
>> + Verifying Hash Integrity ... OK
>> + Loading ramdisk from 0x8393c490 to 0x82000000
>> + WARNING: 'compression' nodes for ramdisks are deprecated, please fix
>your .its file!
>> + ## Loading fdt from FIT Image at 83000000 ...
>> + Using 'config-1' configuration
>> + Trying 'fdt at 1' fdt subimage
>> + Description: unavailable
>> + Type: Flat Device Tree
>> + Compression: uncompressed
>> + Data Start: 0x8393a934
>> + Data Size: 6889 Bytes = 6.7 KiB
>> + Architecture: RISC-V
>> + Verifying Hash Integrity ... OK
>> + Booting using the fdt blob at 0x8393a934
>> + Loading Kernel Image
>> + Using Device Tree in place at 000000008393a934, end
>> + 000000008393f41c
>> +
>> + Starting kernel ...
>> +
>> + [ 0.000000] OF: fdt: Ignoring memory range 0x80000000 - 0x80200000
>> + [ 0.000000] Linux version 5.6.0-rc3-00026-g63623fd44972
>(pragneshp at sachinj2-OptiPlex-7010) (gcc version 9.2.0 (crosstool-NG
>1.24.0.37-3f461da)) #3 SMP Tue Feb 25 14:59:12 IST 2020
>> + [ 0.000000] Initial ramdisk at: 0x(____ptrval____) (4568674 bytes)
>> + [ 0.000000] Zone ranges:
>> + [ 0.000000] DMA32 [mem 0x0000000080200000-
>0x00000000ffffffff]
>> + [ 0.000000] Normal [mem 0x0000000100000000-
>0x000000027fffffff]
>> + [ 0.000000] Movable zone start for each node
>> + [ 0.000000] Early memory node ranges
>> + [ 0.000000] node 0: [mem 0x0000000080200000-
>0x000000027fffffff]
>> + [ 0.000000] Initmem setup node 0 [mem 0x0000000080200000-
>0x000000027fffffff]
>> + [ 0.000000] software IO TLB: mapped [mem 0xfbfff000-0xfffff000]
>(64MB)
>> + [ 0.000000] CPU with hartid=0 is not available
>> + [ 0.000000] CPU with hartid=0 is not available
>> + [ 0.000000] elf_hwcap is 0x112d
>> + [ 0.000000] percpu: Embedded 17 pages/cpu s31848 r8192 d29592
>u69632
>> + [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages:
>2067975
>> + [ 0.000000] Kernel command line:
>> + [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11,
>8388608 bytes, linear)
>> + [ 0.000000] Inode-cache hash table entries: 524288 (order: 10,
>4194304 bytes, linear)
>> + [ 0.000000] Sorting __ex_table...
>> + [ 0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
>> + [ 0.000000] Memory: 8179388K/8386560K available (6288K kernel
>code, 458K rwdata, 2135K rodata, 239K init, 311K bss, 207172K reserved, 0K
>cma-reserved)
>> + [ 0.000000] Virtual kernel memory layout:
>> + [ 0.000000] fixmap : 0xffffffcefee00000 - 0xffffffceff000000 (2048
>kB)
>> + [ 0.000000] pci io : 0xffffffceff000000 - 0xffffffcf00000000 ( 16
>MB)
>> + [ 0.000000] vmemmap : 0xffffffcf00000000 - 0xffffffcfffffffff (4095
>MB)
>> + [ 0.000000] vmalloc : 0xffffffd000000000 - 0xffffffdfffffffff (65535
>MB)
>> + [ 0.000000] lowmem : 0xffffffe000000000 - 0xffffffe1ffe00000
>(8190 MB)
>> + [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4,
>Nodes=1
>> + [ 0.000000] rcu: Hierarchical RCU implementation.
>> + [ 0.000000] rcu: RCU restricting CPUs from NR_CPUS=8 to
>nr_cpu_ids=4.
>> + [ 0.000000] rcu: RCU debug extended QS entry/exit.
>> + [ 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is
>25 jiffies.
>> + [ 0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16,
>nr_cpu_ids=4
>> + [ 0.000000] NR_IRQS: 0, nr_irqs: 0, preallocated irqs: 0
>> + [ 0.000000] plic: mapped 53 interrupts with 4 handlers for 9 contexts.
>> + [ 0.000000] riscv_timer_init_dt: Registering clocksource cpuid [0]
>hartid [1]
>> + [ 0.000000] clocksource: riscv_clocksource: mask: 0xffffffffffffffff
>max_cycles: 0x1d854df40, max_idle_ns: 3526361616960 ns
>> + [ 0.000007] sched_clock: 64 bits at 1000kHz, resolution 1000ns, wraps
>every 2199023255500ns
>> + [ 0.000159] Console: colour dummy device 80x25
>> + [ 0.001130] printk: console [tty0] enabled
>> + [ 0.001193] Calibrating delay loop (skipped), value calculated using
>timer frequency.. 2.00 BogoMIPS (lpj=4000)
>> + [ 0.001259] pid_max: default: 32768 minimum: 301
>> + [ 0.001798] Mount-cache hash table entries: 16384 (order: 5, 131072
>bytes, linear)
>> + [ 0.002191] Mountpoint-cache hash table entries: 16384 (order: 5,
>131072 bytes, linear)
>> + [ 0.004308] rcu: Hierarchical SRCU implementation.
>> + [ 0.004981] smp: Bringing up secondary CPUs ...
>> + [ 1.024833] CPU1: failed to come online
>> + [ 2.049612] CPU2: failed to come online
>> + [ 3.074387] CPU3: failed to come online
>> + [ 3.074453] smp: Brought up 1 node, 1 CPU
>> + [ 3.075612] devtmpfs: initialized
>> + [ 3.077517] random: get_random_u32 called from
>bucket_table_alloc.isra.0+0x4e/0x15e with crng_init=0
>> + [ 3.077774] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff,
>max_idle_ns: 7645041785100000 ns
>> + [ 3.077899] futex hash table entries: 1024 (order: 4, 65536 bytes,
>linear)
>> + [ 3.078689] NET: Registered protocol family 16
>> + [ 3.094523] vgaarb: loaded
>> + [ 3.094914] SCSI subsystem initialized
>> + [ 3.095364] usbcore: registered new interface driver usbfs
>> + [ 3.095444] usbcore: registered new interface driver hub
>> + [ 3.095533] usbcore: registered new device driver usb
>> + [ 3.096290] clocksource: Switched to clocksource riscv_clocksource
>> + [ 3.103494] NET: Registered protocol family 2
>> + [ 3.104158] tcp_listen_portaddr_hash hash table entries: 4096 (order:
>5, 163840 bytes, linear)
>> + [ 3.104806] TCP established hash table entries: 65536 (order: 7,
>524288 bytes, linear)
>> + [ 3.106882] TCP bind hash table entries: 65536 (order: 9, 2097152
>bytes, linear)
>> + [ 3.114045] TCP: Hash tables configured (established 65536 bind
>65536)
>> + [ 3.114589] UDP hash table entries: 4096 (order: 6, 393216 bytes,
>linear)
>> + [ 3.115949] UDP-Lite hash table entries: 4096 (order: 6, 393216 bytes,
>linear)
>> + [ 3.117578] NET: Registered protocol family 1
>> + [ 3.118255] RPC: Registered named UNIX socket transport module.
>> + [ 3.118295] RPC: Registered udp transport module.
>> + [ 3.118328] RPC: Registered tcp transport module.
>> + [ 3.118360] RPC: Registered tcp NFSv4.1 backchannel transport
>module.
>> + [ 3.118397] PCI: CLS 0 bytes, default 64
>> + [ 3.118621] Unpacking initramfs...
>> + [ 3.475555] Freeing initrd memory: 4460K
>> + [ 3.476511] workingset: timestamp_bits=62 max_order=21
>bucket_order=0
>> + [ 3.485899] NFS: Registering the id_resolver key type
>> + [ 3.485961] Key type id_resolver registered
>> + [ 3.485994] Key type id_legacy registered
>> + [ 3.486037] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
>> + [ 3.486236] 9p: Installing v9fs 9p2000 file system support
>> + [ 3.486651] NET: Registered protocol family 38
>> + [ 3.486729] Block layer SCSI generic (bsg) driver version 0.4 loaded
>(major 253)
>> + [ 3.486788] io scheduler mq-deadline registered
>> + [ 3.486822] io scheduler kyber registered
>> + [ 3.528973] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
>> + [ 3.530114] 10010000.serial: ttySIF0 at MMIO 0x10010000 (irq = 1,
>base_baud = 0) is a SiFive UART v0
>> + [ 4.061558] printk: console [ttySIF0] enabled
>> + [ 4.066211] 10011000.serial: ttySIF1 at MMIO 0x10011000 (irq = 10,
>base_baud = 0) is a SiFive UART v0
>> + [ 4.075620] [drm] radeon kernel modesetting enabled.
>> + [ 4.092998] loop: module loaded
>> + [ 4.096007] sifive_spi 10040000.spi: mapped; irq=12, cs=1
>> + [ 4.101380] sifive_spi 10050000.spi: mapped; irq=13, cs=1
>> + [ 4.107129] libphy: Fixed MDIO Bus: probed
>> + [ 4.111232] macb 10090000.ethernet: Registered clk switch 'sifive-
>gemgxl-mgmt'
>> + [ 4.117841] macb 10090000.ethernet: GEM doesn't support hardware
>ptp.
>> + [ 4.124654] libphy: MACB_mii_bus: probed
>> + [ 4.133149] macb 10090000.ethernet eth0: Cadence GEM rev
>0x10070109 at 0x10090000 irq 14 (86:5d:6f:58:d6:3d)
>> + [ 4.142400] e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k
>> + [ 4.148053] e1000e: Copyright(c) 1999 - 2015 Intel Corporation.
>> + [ 4.154051] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI)
>Driver
>> + [ 4.160470] ehci-pci: EHCI PCI platform driver
>> + [ 4.164930] ehci-platform: EHCI generic platform driver
>> + [ 4.170185] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
>> + [ 4.176284] ohci-pci: OHCI PCI platform driver
>> + [ 4.180736] ohci-platform: OHCI generic platform driver
>> + [ 4.186226] usbcore: registered new interface driver uas
>> + [ 4.191257] usbcore: registered new interface driver usb-storage
>> + [ 4.197392] mousedev: PS/2 mouse device common for all mice
>> + [ 4.228311] mmc_spi spi1.0: SD/MMC host mmc0, no DMA, no WP,
>no poweroff, cd polling
>> + [ 4.235528] usbcore: registered new interface driver usbhid
>> + [ 4.240870] usbhid: USB HID core driver
>> + [ 4.245515] NET: Registered protocol family 10
>> + [ 4.250603] Segment Routing with IPv6
>> + [ 4.253602] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
>> + [ 4.259978] NET: Registered protocol family 17
>> + [ 4.264098] 9pnet: Installing 9P2000 support
>> + [ 4.268159] Key type dns_resolver registered
>> + [ 4.279265] Freeing unused kernel memory: 236K
>> + [ 4.282989] This architecture does not have kernel memory
>protection.
>> + [ 4.289390] Run /init as init process
>> + Starting syslogd: OK
>> + Starting klogd: OK
>> + Starting mdev...
>> + /etc/init.d/S10mdev: line 9: can't create /proc/sys/kernel/hotplug:
>nonexistent directory
>> + [ 4.354461] mmc0: host does not support reading read-only switch,
>assuming write-enable
>> + [ 4.361778] mmc0: new SDHC card on SPI
>> + [ 4.381184] mmcblk0: mmc0:0000 SC16G 14.8 GiB
>> + [ 4.424975] mmcblk0: p1 p2 p3
>> + modprobe: can't change directory to '/lib/modules': No such file or
>directory
>> + Initializing random number generator... [ 5.041362] random: dd:
>uninitialized urandom read (512 bytes read)
>> + done.
>> + Starting network: [ 5.240580] macb 10090000.ethernet eth0: PHY
>[10090000.ethernet-ffffffff:00] driver [Microsemi VSC8541 SyncE] (irq=POLL)
>> + [ 5.250752] macb 10090000.ethernet eth0: configuring for phy/gmii
>link mode
>> + udhcpc: started, v1.29.3
>> + udhcpc: sending discover
>> + [ 7.301682] macb 10090000.ethernet eth0: Link is Up - 100Mbps/Full -
>flow control tx
>> + [ 7.308726] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes
>ready
>> + udhcpc: sending discover
>> + udhcpc: sending discover
>> + udhcpc: no lease, failing
>> + FAIL
>> + Starting dropbear sshd: [ 14.309152] random: dropbear: uninitialized
>urandom read (32 bytes read)
>> + OK
>> +
>> + Welcome to Buildroot
>> + buildroot login: root
>> + Password:
>> + #
>> --
>> 2.17.1
>>
>
>Otherwise looks good to me.
>
>Reviewed-by: Anup Patel <anup at brainfault.org>
>
>Regards,
>Anup
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