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cleanup the kerenl, mv the Changelog to qi-kernel
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*********************************************************************
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Steps to build the kernel:
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Download and install the cross toolchain gcc version 4 for Linux 2.6.
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$ cd /opt
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$ tar xjf mipseltools-gcc412-glibc261.tar.bz2
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$ export PATH=/opt/mipseltools-gcc412-glibc261/bin:$PATH
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Download the linux kernel tarball linux-2.6.24.3.tar.bz2 and unpack it:
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$ tar xjf linux-2.6.24.3.tar.bz2
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Download the latest kernel patch and patch it to the kernel tree:
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$ cd linux-2.6.24.3
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$ gzip -cd ../linux-2.6.24.3-jz-yyyymmdd.patch.gz | patch -p1
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Make defconfig of the JZSOC based platform, eg:
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$ make apus_defconfig (JZ4750 based APUS board)
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or
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$ make pavo_defconfig (JZ4740 based PAVO board)
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or
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$ make pmp_defconfig (JZ4730 based PMP board)
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Build the kernel:
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$ make xconfig
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$ make uImage
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or
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# make zImage
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or
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# make modules
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*********************************************************************
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linux-2.6.24.3-jz-20090226.patch.gz
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* Fixed a bug of YAFFS2 on JZ4750 when using BCH ECC algorithm.
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linux-2.6.24.3-jz-20090218.patch.gz
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* Support Jz4750
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* Converted MTD from 32bit to 64bit to support the NAND larger than 2GB, and yaffs2 was
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modified accordingly.
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* Supported multi-plane operation and multiply chip selecting for NAND flash.
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* Whether NAND multiple planes operation for one partition is used or not could be
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determined by the value of use_planes in partition_info[] in drivers/mtd/nand/jz47xx_nand.c
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* Modified yaffs2 utils mkyaffs2image to support writting 4KB pagesize NAND and enable
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writing soft reed-solomn ECC for yaffs2 file system information in oob area of MLC nand
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linux-2.6.24.3-jz-20080926.patch.gz:
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* Fixed a fatal bug for mplayer, which may cause some files cannot be played and the system is crashed.
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Updated file: arch/mips/jz4740/proc.c.
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* Modify jzfb_mmap() for cacheable LCD framebuffer access.
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linux-2.6.24.3-jz-20080815.patch.gz:
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* Modify ipu interface to toggle PID of MPlayer in TLB.
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* Modify OSS ioctl function to play movie with mono channel better.
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* Check whether the free block of nand is erased before erasing it, 'unsigned int' instead of
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'unsigned short' was used to store block number, and heap sort for lifetime after
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erasing a block was replaced by another faster method.
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* Cache read was used in nand_read_page_hwecc_rs() for Jz4740.
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* Faster timing in REG_EMC_SMCR1 whose value is 0x09221200 was used.
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* Supported 4KB page size nand
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* Soft reed solomon ECC was supported for yaffs2 information which is 16 bytes in nand
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oob, and it should be used for MLC nand.
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* Added support to generate any frequency baud rate of uart for both Jz4740 and Jz4750.
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* Modified Jz4750's INTC, CIM, TSSI, macros.
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* Combined Jz4750 SLCD Controller support into drivers/video/jz4750_lcd.c, which now support
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LCD Controller, Slcd Controller and TVE. And add smart lcd panel TRULY_TFT_GG1P0319LTSW_W support.
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* Add Jz4750 LCDC and TVE driver.
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* Modified CONFIG_FB_JZXXX macros, rename drivers/video/jzslcd.x to drivers/video/jz4740_slcd.x
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* Add jz_clocksource, upgrade the system time's accuracy from 10ms to about 1(or 2) us.
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but the system timer remained 10ms.
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* Updated UBIFS.
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linux-2.6.24.3-jz-20080530.patch.gz:
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* Added JZ4720 virgo board support.
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* Added definition of CONFIG_SOC_JZ4725 and CONFIG_SOC_JZ4720.
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* Added selection of 4-bit/1-bit data bus for MMC/SD card driver.
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* Added dipper_defconfig for JZ4725 DIPPER board.
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* Modified sound/oss/jz_i2s.c to increase the sound buffer.
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* Modified pavo_defconfig to select the oss sound driver by default.
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* Fixed jzlcd.h for jz4730 pmp.
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* Modified jzcs8900a.c to not test the chip ID.
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linux-2.6.24.3-jz-20080526.patch.gz:
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* Rewrote all of the UBI and UBIFS codes and their utilities.
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* Modified MMC/SD driver jz_mmc.c to support PM callback.
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* Fixed a bug of mtdblock-jz.uu of using the badblock_table.
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* Patch jz4740_nand.c to optimize the RS correction algorithm.
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* Jzlcd driver added framebuffer rotation support.
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linux-2.6.24.3-jz-20080422.patch.gz:
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* Supported multi-framebuffers LCD driver.
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* Modified sound/soc/jz4740/jz4740-i2s.c to support 32KHz PCM sample.
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* Ported new mtd-utils and mkfs.ubifs.
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* Added jzslcd.c for Smart LCD framebuffer driver.
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* Modified rtc_jz.c to use some functions in rtc library instead of our function.
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* Added jz_keypad.c and gpio_keys.c for scan keypad drivers.
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* Added block-jz.c to support block device layer on top of ubi.
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* Modified jz4740_udc.c to enable the suspend irq when host unloads us.
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* pavo_defconfig: select CONFIG_WIRELESS_EXT, CONFIG_PNP and CONFIG_SERIAL_8250_PNP.
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* Modified jz_ts.c jz_ts.h and sadc.c to release CPU by interrupt mode instead of pio mode.
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* Fixed a bug in jz4740_udc.c and jz4730_udc.c during rmmod the driver.
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* Modified jz_i2s.c to fix the jz_audio_release().
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* Fixed udc_hotplug.c to avoid the "unexpected IRQ".
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* Fixed jz4740/cpufreq.c of calculating the new_mclk.
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* Modified drivers/video/console/fbcon.c by adding fb_flashcursor selection.
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linux-2.6.24.3-jz-20080304.patch.gz:
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* First full release, support JZ4740 PAVO and JZ4730 PMP boards.
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* Some important drivers: YAFFS2, UBI & UBIFS, Power management,
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SLC/MLC NAND, MMC/SD, LCD framebuffer, ALSA/OSS audio, UDC,
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USB host, Camera, RTC, WatchDog, udev, hotplug etc.
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