Does this BSP support RK292x series? #64

Dizgah · 2018-01-31T21:25:33Z

Does this BSP Repo support RK292x family ?
If not is there any other repo for this model ?
I'm intended to boot Linux kernel on my RK2928 chip but I could not find appropriate kernel Repo of this chip family.

ajit1433 · 2018-03-15T11:28:20Z

Can someone provide answer to the above query?

…ock64#24 (AUTOFS4), rockchip-linux#54 (DRBD), rockchip-linux#64 (Multiple Routing Tables), rockchip-linux#87 (RTL8188EU), rockchip-linux#107 (iSCSI), rockchip-linux#148 (1-W GPIO)

…OFS4), rockchip-linux#54 (DRBD), rockchip-linux#64 (Multiple Routing Tables), rockchip-linux#87 (RTL8188EU), rockchip-linux#107 (iSCSI), rockchip-linux#148 (1-W GPIO) (#24)

In the current urb enqueue process, it doesn't use spinlock protect qtd init, this may cause urb dequeue to access the qtd unexpectedly and cause kernel panic with the following log: Unable to handle kernel NULL pointer dereference at virtual address 00000024 pgd = c0004000 [00000024] *pgd=00000000 Internal error: Oops: 817 [#1] PREEMPT SMP ARM Modules linked in: drmboot(PO) CPU: 1 PID: 623 Comm: wakeWordAgent Tainted: P O 3.10.104 rockchip-linux#64 task: cee05f80 ti: cefaa000 task.ti: cefaa000 PC is at dwc_otg_hcd_urb_dequeue+0x90/0x12c LR is at urb_dequeue+0x70/0xb8 ... [<c0447af8>] (dwc_otg_hcd_urb_dequeue+0x90/0x12c) from [<c04497c4>] (urb_dequeue+0x70/0xb8) [<c04497c4>] (urb_dequeue+0x70/0xb8) from [<c0417144>] (usb_hcd_unlink_urb+0x84/0xa4) [<c0417144>] (usb_hcd_unlink_urb+0x84/0xa4) from [<c051dedc>] (deactivate_urbs+0xa4/0xc8) [<c051dedc>] (deactivate_urbs+0xa4/0xc8) from [<c051eeb0>] (snd_usb_endpoint_stop+0x2c/0x3c) [<c051eeb0>] (snd_usb_endpoint_stop+0x2c/0x3c) from [<c0525c78>] (stop_endpoints+0x48/0x64) [<c0525c78>] (stop_endpoints+0x48/0x64) from [<c0525ce0>] (snd_usb_substream_capture_trigger+0x4c/0xa0) [<c0525ce0>] (snd_usb_substream_capture_trigger+0x4c/0xa0) from [<c05128b8>] (snd_pcm_do_stop+0x4c/0x54) [<c05128b8>] (snd_pcm_do_stop+0x4c/0x54) from [<c0512190>] (snd_pcm_action_single+0x38/0x64) [<c0512190>] (snd_pcm_action_single+0x38/0x64) from [<c0512360>] (snd_pcm_drop+0x68/0xb8) [<c0512360>] (snd_pcm_drop+0x68/0xb8) from [<c0512d7c>] (snd_pcm_release_substream.part.11+0xc/0x90) [<c0512d7c>] (snd_pcm_release_substream.part.11+0xc/0x90) from [<c0512e48>] (snd_pcm_release+0x30/0x7c) [<c0512e48>] (snd_pcm_release+0x30/0x7c) from [<c0108d1c>] (__fput+0xe8/0x1e4) This patch uses spinlock to protect qtd init when do urb enqueue to avoid race condition between queue and dequeue. Change-Id: I88fac18530cd0a52a5d9b604880d162ff2793ca7 Signed-off-by: Wu Liang feng <wulf@rock-chips.com>

…OFS4), rockchip-linux#54 (DRBD), rockchip-linux#64 (Multiple Routing Tables), rockchip-linux#87 (RTL8188EU), rockchip-linux#107 (iSCSI), rockchip-linux#148 (1-W GPIO) (#24)

Change-Id: I9f2c1b0d8d56a8d3da1774f51a4701212ac6ffff added IPGRE module to enable: (#18) ip tunnel add grx mode gre Change-Id: I26bda9ece68f9f6be1277da0779076694d5d845c ayufan: rockchip_linux_defconfig compile ZRAM as module Change-Id: I2ee48973cb370130cc5d75008a07d5777c69208a ayufan: rockchip_defconfig: disable CONFIG_SCHED_WALT as it makes system unstable Change-Id: Id2a150311fcaad9f11127320558dc3caafb250e4 config: add more USB wifi chipsets (#19) * Add some more USB wifi chipsets to default config. * Fix typo in default config. Added openvswitch kernel module compilation (#22) ayufan: defconfig: add RK805 pinctrl Change-Id: I9144206544db4e86e73a4d553fb8db3aa194c619 ayufan: enable additional realtek devices Change-Id: Ie3598c47154b648540f161ad4aedd597bc33f83f config: Add support for modules/features requested by issues #24 (AUTOFS4), rockchip-linux#54 (DRBD), rockchip-linux#64 (Multiple Routing Tables), rockchip-linux#87 (RTL8188EU), rockchip-linux#107 (iSCSI), rockchip-linux#148 (1-W GPIO) (#24) ayufan: rtl8812au: add Edimax 600 USB adapter Add requested kernel modules/features for issue rockchip-linux#153 and LIRC, PPS GPIO support, remove wifi staging drivers. (#25) Fix compile error (#26) Multiple definition error due to midgard and bifrost both selected ayufan: defconfig: add a bunch of kernel modules Change-Id: I77f5c4809c35b6c74a3bb668487eba93a0a15169 ayufan: rockchip_wlan: revert changes Change-Id: I6aa0bbc24e2fdfb6da350ed167d59c4eea836c2a ayufan: defconfig: enable CONFIG_MEMTEST Change-Id: I82c3d1b2d35fb10172f891571ef600a692ac4e61 ayufan: defconfig: remove unusued kernel configs Change-Id: I2a4a2e5785dd5796bb7404718898127718b86425 ayufan: defconfig: enable initrd in bzip2/lzma/lzo/lz4 Change-Id: I88ea1f8127d8fdadf90dd4428a51a1582adc2687 ayufan: defconfig: enable PWM FAN Change-Id: I87a364e95d937c354e06eb41fead43d8d5cb0b4a external: defconfig: Add support for f2fs and crc32 (#32) Add support for f2fs and it's dependency crc32 to rock64. This patch may or may not need to be included as well due to this bug https://bugs.debian.org/819725 A official patch was added by Debian https://salsa.debian.org/kernel-team/linux/blob/master/debian/patches/bugfix/all/fs-add-module_softdep-declarations-for-hard-coded-cr.patch external: defconfig: enable kernel modules for RBD and IPVS (#33) external: defconfig: Make crc, crc32, f2fs to be compiled into kernel. (#35) This changes crc, crc32, and f2fs to be compiled into the kernel instead of as module. This also fixes the issue of crc32-arm64 not being compiled due to a incorrect driver name. CONFIG_CRYPTO_CRC32_ARM64 became CONFIG_CRYPTO_CRC32_ARM64_CE in newer kernel sources. That's why I had to change that here. ayufan: defconfig: use CONFIG_HZ=250 Change-Id: I8009db93ee7c5af5e7804a004ab03d0ba97d20e2 CONFIG_SQUASHFS_XZ=y (#41) cyberp: defconfig: squashfs xz for snap support defconfig: enable binfmt-misc (#36) ayufan: defconfig: organize with savedefconfig ayufan: defconfig: support tehuti 10gbps adapter ayufan: defconfig: enable usb gadget via configfs ayufan: dts: compile-in audio codecs Change-Id: I7c70870395a10a0eafff006aabc17faf1d33355e

load_bpf_file() should fail if ioctl with command PERF_EVENT_IOC_ENABLE and PERF_EVENT_IOC_SET_BPF fails. When they do fail, proper error messages are printed. With this change, the below "syscall_tp" run shows that the maximum number of bpf progs attaching to the same perf tracepoint is indeed enforced. $ ./syscall_tp -i 64 prog #0: map ids 4 5 ... prog rockchip-linux#63: map ids 382 383 $ ./syscall_tp -i 65 prog #0: map ids 4 5 ... prog rockchip-linux#64: map ids 388 389 ioctl PERF_EVENT_IOC_SET_BPF failed err Argument list too long Signed-off-by: Yonghong Song <yhs@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

commit 8b59b0a upstream. arm32 uses software to simulate the instruction replaced by kprobe. some instructions may be simulated by constructing assembly functions. therefore, before executing instruction simulation, it is necessary to construct assembly function execution environment in C language through binding registers. after kasan is enabled, the register binding relationship will be destroyed, resulting in instruction simulation errors and causing kernel panic. the kprobe emulate instruction function is distributed in three files: actions-common.c actions-arm.c actions-thumb.c, so disable KASAN when compiling these files. for example, use kprobe insert on cap_capable+20 after kasan enabled, the cap_capable assembly code is as follows: <cap_capable>: e92d47f0 push {r4, r5, r6, r7, r8, r9, sl, lr} e1a05000 mov r5, r0 e280006c add r0, r0, rockchip-linux#108 ; 0x6c e1a04001 mov r4, r1 e1a06002 mov r6, r2 e59fa090 ldr sl, [pc, rockchip-linux#144] ; ebfc7bf8 bl c03aa4b4 <__asan_load4> e595706c ldr r7, [r5, rockchip-linux#108] ; 0x6c e2859014 add r9, r5, rockchip-linux#20 ...... The emulate_ldr assembly code after enabling kasan is as follows: c06f1384 <emulate_ldr>: e92d47f0 push {r4, r5, r6, r7, r8, r9, sl, lr} e282803c add r8, r2, rockchip-linux#60 ; 0x3c e1a05000 mov r5, r0 e7e37855 ubfx r7, r5, rockchip-linux#16, #4 e1a00008 mov r0, r8 e1a09001 mov r9, r1 e1a04002 mov r4, r2 ebf35462 bl c03c6530 <__asan_load4> e357000f cmp r7, rockchip-linux#15 e7e36655 ubfx r6, r5, rockchip-linux#12, #4 e205a00f and sl, r5, rockchip-linux#15 0a000001 beq c06f13bc <emulate_ldr+0x38> e0840107 add r0, r4, r7, lsl #2 ebf3545c bl c03c6530 <__asan_load4> e084010a add r0, r4, sl, lsl #2 ebf3545a bl c03c6530 <__asan_load4> e2890010 add r0, r9, rockchip-linux#16 ebf35458 bl c03c6530 <__asan_load4> e5990010 ldr r0, [r9, rockchip-linux#16] e12fff30 blx r0 e356000f cm r6, rockchip-linux#15 1a000014 bne c06f1430 <emulate_ldr+0xac> e1a06000 mov r6, r0 e2840040 add r0, r4, rockchip-linux#64 ; 0x40 ...... when running in emulate_ldr to simulate the ldr instruction, panic occurred, and the log is as follows: Unable to handle kernel NULL pointer dereference at virtual address 00000090 pgd = ecb46400 [00000090] *pgd=2e0fa003, *pmd=00000000 Internal error: Oops: 206 [#1] SMP ARM PC is at cap_capable+0x14/0xb0 LR is at emulate_ldr+0x50/0xc0 psr: 600d0293 sp : ecd63af8 ip : 00000004 fp : c0a7c30c r10: 00000000 r9 : c30897f4 r8 : ecd63cd4 r7 : 0000000f r6 : 0000000a r5 : e59fa090 r4 : ecd63c98 r3 : c06ae294 r2 : 00000000 r1 : b7611300 r0 : bf4ec008 Flags: nZCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment user Control: 32c5387d Table: 2d546400 DAC: 55555555 Process bash (pid: 1643, stack limit = 0xecd60190) (cap_capable) from (kprobe_handler+0x218/0x340) (kprobe_handler) from (kprobe_trap_handler+0x24/0x48) (kprobe_trap_handler) from (do_undefinstr+0x13c/0x364) (do_undefinstr) from (__und_svc_finish+0x0/0x30) (__und_svc_finish) from (cap_capable+0x18/0xb0) (cap_capable) from (cap_vm_enough_memory+0x38/0x48) (cap_vm_enough_memory) from (security_vm_enough_memory_mm+0x48/0x6c) (security_vm_enough_memory_mm) from (copy_process.constprop.5+0x16b4/0x25c8) (copy_process.constprop.5) from (_do_fork+0xe8/0x55c) (_do_fork) from (SyS_clone+0x1c/0x24) (SyS_clone) from (__sys_trace_return+0x0/0x10) Code: 0050a0e1 6c0080e2 0140a0e1 0260a0e1 (f801f0e7) Fixes: 35aa1df ("ARM kprobes: instruction single-stepping support") Fixes: 4210157 ("ARM: 9017/2: Enable KASan for ARM") Signed-off-by: huangshaobo <huangshaobo6@huawei.com> Acked-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

BUG: KASAN: slab-use-after-free in xfrm_policy_inexact_list_reinsert+0xb6/0x430 Read of size 1 at addr ffff8881051f3bf8 by task ip/668 CPU: 2 PID: 668 Comm: ip Not tainted 6.5.0-rc5-00182-g25aa0bebba72-dirty rockchip-linux#64 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.13 04/01/2014 Call Trace: <TASK> dump_stack_lvl+0x72/0xa0 print_report+0xd0/0x620 kasan_report+0xb6/0xf0 xfrm_policy_inexact_list_reinsert+0xb6/0x430 xfrm_policy_inexact_insert_node.constprop.0+0x537/0x800 xfrm_policy_inexact_alloc_chain+0x23f/0x320 xfrm_policy_inexact_insert+0x6b/0x590 xfrm_policy_insert+0x3b1/0x480 xfrm_add_policy+0x23c/0x3c0 xfrm_user_rcv_msg+0x2d0/0x510 netlink_rcv_skb+0x10d/0x2d0 xfrm_netlink_rcv+0x49/0x60 netlink_unicast+0x3fe/0x540 netlink_sendmsg+0x528/0x970 sock_sendmsg+0x14a/0x160 ____sys_sendmsg+0x4fc/0x580 ___sys_sendmsg+0xef/0x160 __sys_sendmsg+0xf7/0x1b0 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x73/0xdd The root cause is: cpu 0 cpu1 xfrm_dump_policy xfrm_policy_walk list_move_tail xfrm_add_policy ... ... xfrm_policy_inexact_list_reinsert list_for_each_entry_reverse if (!policy->bydst_reinsert) //read non-existent policy xfrm_dump_policy_done xfrm_policy_walk_done list_del(&walk->walk.all); If dump_one_policy() returns err (triggered by netlink socket), xfrm_policy_walk() will move walk initialized by socket to list net->xfrm.policy_all. so this socket becomes visible in the global policy list. The head *walk can be traversed when users add policies with different prefixlen and trigger xfrm_policy node merge. The issue can also be triggered by policy list traversal while rehashing and flushing policies. It can be fixed by skip such "policies" with walk.dead set to 1. Fixes: 9cf545e ("xfrm: policy: store inexact policies in a tree ordered by destination address") Fixes: 12a169e ("ipsec: Put dumpers on the dump list") Signed-off-by: Dong Chenchen <dongchenchen2@huawei.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>

[ Upstream commit 6d41d4f ] BUG: KASAN: slab-use-after-free in xfrm_policy_inexact_list_reinsert+0xb6/0x430 Read of size 1 at addr ffff8881051f3bf8 by task ip/668 CPU: 2 PID: 668 Comm: ip Not tainted 6.5.0-rc5-00182-g25aa0bebba72-dirty rockchip-linux#64 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.13 04/01/2014 Call Trace: <TASK> dump_stack_lvl+0x72/0xa0 print_report+0xd0/0x620 kasan_report+0xb6/0xf0 xfrm_policy_inexact_list_reinsert+0xb6/0x430 xfrm_policy_inexact_insert_node.constprop.0+0x537/0x800 xfrm_policy_inexact_alloc_chain+0x23f/0x320 xfrm_policy_inexact_insert+0x6b/0x590 xfrm_policy_insert+0x3b1/0x480 xfrm_add_policy+0x23c/0x3c0 xfrm_user_rcv_msg+0x2d0/0x510 netlink_rcv_skb+0x10d/0x2d0 xfrm_netlink_rcv+0x49/0x60 netlink_unicast+0x3fe/0x540 netlink_sendmsg+0x528/0x970 sock_sendmsg+0x14a/0x160 ____sys_sendmsg+0x4fc/0x580 ___sys_sendmsg+0xef/0x160 __sys_sendmsg+0xf7/0x1b0 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x73/0xdd The root cause is: cpu 0 cpu1 xfrm_dump_policy xfrm_policy_walk list_move_tail xfrm_add_policy ... ... xfrm_policy_inexact_list_reinsert list_for_each_entry_reverse if (!policy->bydst_reinsert) //read non-existent policy xfrm_dump_policy_done xfrm_policy_walk_done list_del(&walk->walk.all); If dump_one_policy() returns err (triggered by netlink socket), xfrm_policy_walk() will move walk initialized by socket to list net->xfrm.policy_all. so this socket becomes visible in the global policy list. The head *walk can be traversed when users add policies with different prefixlen and trigger xfrm_policy node merge. The issue can also be triggered by policy list traversal while rehashing and flushing policies. It can be fixed by skip such "policies" with walk.dead set to 1. Fixes: 9cf545e ("xfrm: policy: store inexact policies in a tree ordered by destination address") Fixes: 12a169e ("ipsec: Put dumpers on the dump list") Signed-off-by: Dong Chenchen <dongchenchen2@huawei.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: Sasha Levin <sashal@kernel.org>

commit 9a2fa14 upstream. copy_fd_bitmaps(new, old, count) is expected to copy the first count/BITS_PER_LONG bits from old->full_fds_bits[] and fill the rest with zeroes. What it does is copying enough words (BITS_TO_LONGS(count/BITS_PER_LONG)), then memsets the rest. That works fine, *if* all bits past the cutoff point are clear. Otherwise we are risking garbage from the last word we'd copied. For most of the callers that is true - expand_fdtable() has count equal to old->max_fds, so there's no open descriptors past count, let alone fully occupied words in ->open_fds[], which is what bits in ->full_fds_bits[] correspond to. The other caller (dup_fd()) passes sane_fdtable_size(old_fdt, max_fds), which is the smallest multiple of BITS_PER_LONG that covers all opened descriptors below max_fds. In the common case (copying on fork()) max_fds is ~0U, so all opened descriptors will be below it and we are fine, by the same reasons why the call in expand_fdtable() is safe. Unfortunately, there is a case where max_fds is less than that and where we might, indeed, end up with junk in ->full_fds_bits[] - close_range(from, to, CLOSE_RANGE_UNSHARE) with * descriptor table being currently shared * 'to' being above the current capacity of descriptor table * 'from' being just under some chunk of opened descriptors. In that case we end up with observably wrong behaviour - e.g. spawn a child with CLONE_FILES, get all descriptors in range 0..127 open, then close_range(64, ~0U, CLOSE_RANGE_UNSHARE) and watch dup(0) ending up with descriptor rockchip-linux#128, despite rockchip-linux#64 being observably not open. The minimally invasive fix would be to deal with that in dup_fd(). If this proves to add measurable overhead, we can go that way, but let's try to fix copy_fd_bitmaps() first. * new helper: bitmap_copy_and_expand(to, from, bits_to_copy, size). * make copy_fd_bitmaps() take the bitmap size in words, rather than bits; it's 'count' argument is always a multiple of BITS_PER_LONG, so we are not losing any information, and that way we can use the same helper for all three bitmaps - compiler will see that count is a multiple of BITS_PER_LONG for the large ones, so it'll generate plain memcpy()+memset(). Reproducer added to tools/testing/selftests/core/close_range_test.c Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

[ Upstream commit 60f07e2 ] We use uprobe in aarch64_be, which we found the tracee task would exit due to SIGILL when we enable the uprobe trace. We can see the replace inst from uprobe is not correct in aarch big-endian. As in Armv8-A, instruction fetches are always treated as little-endian, we should treat the UPROBE_SWBP_INSN as little-endian。 The test case is as following。 bash-4.4# ./mqueue_test_aarchbe 1 1 2 1 10 > /dev/null & bash-4.4# cd /sys/kernel/debug/tracing/ bash-4.4# echo 'p:test /mqueue_test_aarchbe:0xc30 %x0 %x1' > uprobe_events bash-4.4# echo 1 > events/uprobes/enable bash-4.4# bash-4.4# ps PID TTY TIME CMD 140 ? 00:00:01 bash 237 ? 00:00:00 ps [1]+ Illegal instruction ./mqueue_test_aarchbe 1 1 2 1 100 > /dev/null which we debug use gdb as following: bash-4.4# gdb attach 155 (gdb) disassemble send Dump of assembler code for function send: 0x0000000000400c30 <+0>: .inst 0xa00020d4 ; undefined 0x0000000000400c34 <+4>: mov x29, sp 0x0000000000400c38 <+8>: str w0, [sp, ayufan-rock64#28] 0x0000000000400c3c <+12>: strb w1, [sp, ayufan-rock64#27] 0x0000000000400c40 <+16>: str xzr, [sp, ayufan-rock64#40] 0x0000000000400c44 <+20>: str xzr, [sp, ayufan-rock64#48] 0x0000000000400c48 <+24>: add x0, sp, #0x1b 0x0000000000400c4c <+28>: mov w3, #0x0 // #0 0x0000000000400c50 <+32>: mov x2, #0x1 // #1 0x0000000000400c54 <+36>: mov x1, x0 0x0000000000400c58 <+40>: ldr w0, [sp, ayufan-rock64#28] 0x0000000000400c5c <+44>: bl 0x405e10 <mq_send> 0x0000000000400c60 <+48>: str w0, [sp, rockchip-linux#60] 0x0000000000400c64 <+52>: ldr w0, [sp, rockchip-linux#60] 0x0000000000400c68 <+56>: ldp x29, x30, [sp], rockchip-linux#64 0x0000000000400c6c <+60>: ret End of assembler dump. (gdb) info b No breakpoints or watchpoints. (gdb) c Continuing. Program received signal SIGILL, Illegal instruction. 0x0000000000400c30 in send () (gdb) x/10x 0x400c30 0x400c30 <send>: 0xd42000a0 0xfd030091 0xe01f00b9 0xe16f0039 0x400c40 <send+16>: 0xff1700f9 0xff1b00f9 0xe06f0091 0x03008052 0x400c50 <send+32>: 0x220080d2 0xe10300aa (gdb) disassemble 0x400c30 Dump of assembler code for function send: => 0x0000000000400c30 <+0>: .inst 0xa00020d4 ; undefined 0x0000000000400c34 <+4>: mov x29, sp 0x0000000000400c38 <+8>: str w0, [sp, ayufan-rock64#28] 0x0000000000400c3c <+12>: strb w1, [sp, ayufan-rock64#27] 0x0000000000400c40 <+16>: str xzr, [sp, ayufan-rock64#40] Signed-off-by: junhua huang <huang.junhua@zte.com.cn> Link: https://lore.kernel.org/r/202212021511106844809@zte.com.cn Signed-off-by: Will Deacon <will@kernel.org> Stable-dep-of: 13f8f1e ("arm64: probes: Fix uprobes for big-endian kernels") Signed-off-by: Sasha Levin <sashal@kernel.org>

xalius mentioned this issue Apr 1, 2018

config: Add support for modules/features requested by issues ayufan-rock64/linux-kernel#24

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hizukiayaka closed this as completed Apr 6, 2018

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Does this BSP support RK292x series? #64

Does this BSP support RK292x series? #64

Dizgah commented Jan 31, 2018

ajit1433 commented Mar 15, 2018

Does this BSP support RK292x series? #64

Does this BSP support RK292x series? #64

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Dizgah commented Jan 31, 2018

ajit1433 commented Mar 15, 2018