Hi,
Here's seventh patchset for Ben NanoNote initial support. I've been working with Xiangfu past six months to polish v6 patches. We have addressed all comments from Wolfgang and Scott so far, drop nand_spl and USB_boot functions to make the initial bring-up minimum and simple.
I think the patchset is now in good shape, so will merge and make a pull-request during this merge window. Please give it a final review and if something to fix, please let us know.
Scott and Wolfgang, I know NAND land changes should go through Scott's tree, but the NAND driver is part of the initial support. May I take it through MIPS tree? Hope it's Ok with you.
Changes since v6 patchset are described in each patch.
Shinya
--- 8< --- Boilerplate from Xiangfu Liu:
those patches are for add xburst jz4740 base file and Ben NanoNote (codename qi_lb60) to U-Boot
some info about xburst jz4740: the xburst jz4740 is recently added to linux 2.6.36 and it's support the device Ben NanoNote out of box,
this xburst jz4740 cpu have one feature is Boot From USB, there is a small rom in jz4740, but LOW some PIN, the cpu will boot to this small rom, then init cpu and USB module, then we can send 8KB bin file to the cpu by USB(by using 'xbboot' or 'usbboot'[1]).
which means if your bootloader is borken,(the first few KBs in NAND) you can always boot the device from usb, then reflash the nand.
in OpenMoko FreeRunner, there are NOR and NAND. when people broken the nand bootloader, it's must boot from NOR, reflash the bootloader back when people broken the NAND and NOR, he(she) must reflash by using JTAG but in Ben NanoNote, we just need boot from usb. flash the nand again :)
BTW:there are a lot of PMP, Audio device in China use the Xburst cpu, but I think they are all base on u-boot 1.1.6. by working on Ben NanoNote (http://en.qi-hardware.com) one year, we try to update the u-boot to last version and send it to upstream. :)
for more info about Ingenic Xburst JZ4740 http://www.ingenic.cn/eng/default.aspx http://www.linux-mips.org/wiki/Ingenic
Xiangfu Liu (3): MIPS: Ingenic XBurst Jz4740 processor support MIPS: Jz4740: Add NAND driver MIPS: JZ4740: Add qi_lb60 board support
MAINTAINERS | 4 + MAKEALL | 4 +- README | 1 + arch/mips/cpu/xburst/Makefile | 49 ++ arch/mips/cpu/xburst/config.mk | 24 + arch/mips/cpu/xburst/cpu.c | 152 +++++ arch/mips/cpu/xburst/jz4740.c | 248 ++++++++ arch/mips/cpu/xburst/jz_serial.c | 114 ++++ arch/mips/cpu/xburst/start.S | 171 ++++++ arch/mips/cpu/xburst/timer.c | 169 ++++++ arch/mips/include/asm/global_data.h | 11 + arch/mips/include/asm/jz4740.h | 1115 +++++++++++++++++++++++++++++++++++ board/qi/qi_lb60/Makefile | 45 ++ board/qi/qi_lb60/config.mk | 31 + board/qi/qi_lb60/qi_lb60.c | 104 ++++ board/qi/qi_lb60/u-boot.lds | 61 ++ boards.cfg | 1 + drivers/mtd/nand/Makefile | 1 + drivers/mtd/nand/jz4740_nand.c | 261 ++++++++ include/configs/qi_lb60.h | 210 +++++++ 20 files changed, 2775 insertions(+), 1 deletions(-) create mode 100644 arch/mips/cpu/xburst/Makefile create mode 100644 arch/mips/cpu/xburst/config.mk create mode 100644 arch/mips/cpu/xburst/cpu.c create mode 100644 arch/mips/cpu/xburst/jz4740.c create mode 100644 arch/mips/cpu/xburst/jz_serial.c create mode 100644 arch/mips/cpu/xburst/start.S create mode 100644 arch/mips/cpu/xburst/timer.c create mode 100644 arch/mips/include/asm/jz4740.h create mode 100644 board/qi/qi_lb60/Makefile create mode 100644 board/qi/qi_lb60/config.mk create mode 100644 board/qi/qi_lb60/qi_lb60.c create mode 100644 board/qi/qi_lb60/u-boot.lds create mode 100644 drivers/mtd/nand/jz4740_nand.c create mode 100644 include/configs/qi_lb60.h