[openwrt/openwrt] armvirt/64: change it to cortex-a53 instead of generic

[LEDE Commits]

dangole pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/222dc0ad912370a620172a781a1c429dae01ab08

commit 222dc0ad912370a620172a781a1c429dae01ab08
Author: Josef Schlehofer <pepe.schlehofer at gmail.com>
AuthorDate: Sun Dec 13 15:02:36 2020 +0100

    armvirt/64: change it to cortex-a53 instead of generic
    
    Package architecture aarch64_generic [1] can be used just with three
    devices. One is NanoPI R2S and then there are two development boards
    from NXP. Let's change armvirt/64 to Cortex A53 (aarch64_cortex-a53)
    [2]. It has wider support by multiple devices like NanoPI Neo Plus2/Core2,
    ESPRESSObin, Pine64, and Raspberry Pi 2&3.
    
    While looking at ARMvirt/32 it has set CPU_TYPE and CPU_SUBTYPE to be
    arm_cortex-a15_neon-vfpv4 [3]. It has support to devices like
    Linksys EA8500 v1, Linksys EA7500 v1, Netgear D7800, Netgear R7500 and so on.
    
    Tested with:
    qemu-system-aarch64 -m 1024 -smp 2 -cpu cortex-a57 -M virt -nographic \
    -kernel openwrt-armvirt-64-Image-initramfs
    
    Successfully compiled and booted.
    Here goes the output:
    root at OpenWrt:/# uname -a
    Linux OpenWrt 5.4.82 #0 SMP Sun Dec 13 12:52:10 2020 aarch64 GNU/Linux
    root at OpenWrt:/# cat /etc/openwrt_release
    DISTRIB_ID='OpenWrt'
    DISTRIB_RELEASE='SNAPSHOT'
    DISTRIB_REVISION='r15207-96fca0f807'
    DISTRIB_TARGET='armvirt/64'
    DISTRIB_ARCH='aarch64_cortex-a53'
    DISTRIB_DESCRIPTION='OpenWrt SNAPSHOT r15207-96fca0f807'
    DISTRIB_TAINTS='no-all'
    
    Also, change BOARDNAME to be the same as it is in armvirt/32.
    
    [1] https://openwrt.org/docs/techref/instructionset/aarch64_generic
    [2] https://openwrt.org/docs/techref/instructionset/aarch64_cortex-a53
    [3] https://openwrt.org/docs/techref/instructionset/arm_cortex-a15_neon-vfpv4
    
    Signed-off-by: Josef Schlehofer <pepe.schlehofer at gmail.com>
---
 target/linux/armvirt/64/target.mk | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/target/linux/armvirt/64/target.mk b/target/linux/armvirt/64/target.mk
index 38d8fa13b6..58adcc7d60 100644
--- a/target/linux/armvirt/64/target.mk
+++ b/target/linux/armvirt/64/target.mk
@@ -1,8 +1,9 @@
 ARCH:=aarch64
 SUBTARGET:=64
-BOARDNAME:=ARMv8 multiplatform
+BOARDNAME:=QEMU ARMv8 Virtual Machine (cortex-a53)
+CPU_TYPE:=cortex-a53
 KERNELNAME:=Image
 
 define Target/Description
-	Build multi-platform images for the ARMv8 instruction set architecture
+  Build multi-platform images for the ARMv8 instruction set architecture
 endef