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M150 Linux_3.10.14 v2.0(Halley V2.0)版本发布
M150 Halley平台发布v2.0版本，内核系统升级为3.10.14，参考设备为M150参考开发板Halley V2.0。
& & &ingenic-linux-kernel3.10.14-Halley-v2.0-
主要驱动及功能：
& & & 1. WIFI可用
& & & 2. 蓝牙可用
& & & 3. 串口可用（cpu模式）
& & & 4. USB 转网口（OHCI/USB1.1)
& & & 5. ADB可用（OTG/USB2.0，不支持host）
& & & 6. AUDIO播音（耳机）
& & & 7. MIC录音
& & & 8. LED显示WIFI状态
& & & 9. JTAG
& & & 10. 系统升级（OTA）
& & & 11. MMC（TF卡）（Kernel默认编译config里没有支持该功能，若是用该功能,详见readme文件）
& & & 12. NOR FLASH 分区挂载（详见readme文件）
& & & 13. 支持airkiss功能（详见readme文件）
暂不支持的驱动及功能：
& & & 1. USB serial
& & & 2. 红外发送
& & & 3. 按键驱动
& & & 4. line-in通路暂未实现
下载代码：
& & & & & & $ ./repo init -u :8082/gerrit/linux/manifest -b halley-master
& & & & & &&
& & & & & & $ ./repo sync
& & & & & &&
& & & & & & $ ./repo forall -c "git reset --hard &ingenic-linux-kernel3.10.14-Halley-v2.0-"
编译方法：
& & 设置环境变量：
& & & & & & $ export PATH=path/to/SDK/binaries/toolchain/mips-gcc472-glibc216-xxbit/bin:$PATH
& & & & & & $ export CROSS_COMPILE=mips-linux-gnu-
& & &uboot：
& & & & & & $ make halley_uImage_spinor
& & &kernel：
& & & & & & $ make halley_linux_defconfig
& & & & & & $ make uImage
温馨提醒： &&&&
& & &文件系统默认挂载ramdisk（rootfs_wifi.cpio.gz），若要不使用WIFI需将ramdisk更改为（rootfs.cpio.gz),两个ramdisk都支持ADB。
& & &ramdisk 修改路径：arch/mips/xburst/soc-4775/chip-m150/halley/common/
烧录工具：
& & &烧录工具已经存放到代码目录下，其下载路径：binaries/host-tools/BurnerBinary/latest-halley-linux-burner
&&&& 注意，烧录工具烧录Halley,配置暂时如下：
& & & & & 1，平台：M150
& & & & & 2，板级：halley_spi_lpddr.cfg
&&&&&&&&&&&&&&
&&&&&&&&&&3，烧录工具策略（policy），system.img一项不用勾选烧录
注意事项：
& & & 1. v1.0版本升级至v2.0版本，由于工具链随之升级，导致工具连下载路径发生变化，所以使用者更新v2.0版本代码时，请重新依照上述下载代码。
& & & 2. nor flash空间有限，开发者及用户存放文件时需注意以下问题：
& & & & & a. kernel生成uImage的最终大小不要超过6M。
& & & & & b. 挂载出来的分区大小约为1.2M。
& & & 3. 通过airkiss功能使用WIFI时，WIFI密码设置不要超过16位。
& & & 4. 为了避免系统启动过程中WIFI初始化error，系统重启操作，建议使用开关（K1 开关）,不要使用软件命令（reboot）或者RST按键。
技术问题请发送邮件至：&
更多了解，请访问Halley官网：。
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Ingenic Semiconductor is a Chinese
company based in ,
founded in 2005. They purchased licenses for the
in 2009 and design - based on them. They also design
products including their CPUs and licensed
blocks from third parties, such as , commission the fabrication of
and sell them.
The XBurst CPU microarchitecture is based upon the
respectively the
instruction set and implements an 8-stage pipeline. XBurst CPU technology consists of 2 parts:
A // hybrid instruction set architecture which enables the processor to have the capability of computation, signal processing and video processing. This includes
(MXU), a 32-bit SIMD extension.
An innovative pipeline engine which consumes very little power while emitting instructions. The processor core (including L1 cache) consumes 100 mW at ;MHz at a 65 nm LP process.
Ingenic Semiconductor purchased a
instruction set license and designed a microarchitecture based on it: XBurst2. XBurst2 is a dual-issue/dual-threaded CPU design. Its development "will basically be completed" in the first half of 2014 as announced at Summer 2013.
Ingenic JZ4730
SoCs incorporating the XBurst :
Core clock ()
MIPS32 rev1
MIPS32 rev1 + SIMD
adds , MPEG-1/2/4 decoding capability up to
resolution thanks to
instruction set
MIPS32 rev1 + SIMD2
adds TV encoder
second core is for video processing only
second core is for video processing only, IEEE754-complient FPU
MIPS32 rev2 + SIMD2
Vivante GC860
1080p video decoding unit for ,
(a secondary 500 MHz MIPS processor with
extension)
MIPS32 rev2 + SIMD2
720p video decoding unit for ,
(a secondary 500 MHz MIPS processor with
extension)
Dual MIPS32 rev2 + SIMD2
Dual core () XBurst CPU, 1080p video decoding unit for ,
(a secondary 500 MHz MIPS processor with
extension)
XBurst1-based SoCs are commonly used in , , digital photo frames and GPS devices:
The JZ4730 CPU is used in the
and its variants. The Jz4720 is utilized in the
project . Another popular device, the
gaming handheld, uses the JZ4732, a de facto JZ4740.
is using the JZ4750. Velocity Micro T103 Cruz and T301 Cruz 7-Inch Android 2.0 Tablets used JZ4760. The JZ4770 SoC is used in several of the
Android tablets and 3Q Tablet PC Qoo! IC. JZ4770 SoC is also used in the dedicated handheld NEOGEO-X and
running on OpenDingux. The JZ4780 is used in ImgTec's MIPS based
(SBC); The Creator CI20
Suspected to be called as JZ4774 sometime
Hachman, Mark (May 30, 2008). .
Lowest-Cost Android 4.1 Tablet in 2012 is based in MIPS
MIPS microprocessors& Firefox OS Ported to MIPS Based Tablet (Ingenic JZ4780)
Firefox OS Ported to MIPS Based Tablet (Ingenic JZ4780)
Imagination has
that an experimental version of Firefox OS has been ported to a reference tablet powered by Ingenic JZ4780, a MIPS based processor, that’s also used in
development board, and that the company organized a raffle to send 15 of these tablets for people to try or develop on.
The tablet is said to cost less than $100, runs either Firefox OS or Android 4.4 KitKat, and comes with the following specifications:
SoC –
dual core MIPS32 processor @ 1.2 GHz with Imagination PowerVR SGX540 GPU. 32kI + 32kD per core, 512K shared L2.
System Memory – N/A
Storage – N/A
Display &#” 1024 x 768 resolution
Video Output – mini HDMI port
Audio – Headphone jack, stereo speakers, microphone
Connectivity &# b/g/n Wi-Fi, Bluetooth 4.0
USB – 1x Micro USB port
Camera –
Front and rear cameras
Misc – Sleep/wake, back, and volume buttons
Power – 5V
Battery – Unknown capacity
Dimensions – N/A
I could not find Ingenic JZ4780 based tablets on Aliexpress, Alibaba, or anywhere on the web, so this model is just a reference design, possibly to be sold in a few weeks or months. Firefox OS source code for the tablet and CI20 development board should soon be available on .
The build is still experimental, and they still have some work to do as the tablet still feels quite sluggish as you can see from the demo below. YouTube appears to be working just fine though thanks to the H.264/VP8 video decoder (up to 1080p30) inside the MIPS processor.
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