[U-Boot] [PATCH 00/52] Support i.MX8MM/N

[Lukasz Majewski <lukma@denx.de>]

On Thu, 18 Jul 2019 09:12:02 +0200
Lukasz Majewski <lukma@denx.de> wrote:

> Hi Peng,
> 
> > Hi Lukasz, Stefano,
> >   
> > > > >    
> > > > > > > Subject: Re: [U-Boot] [PATCH 00/52] Support i.MX8MM/N    
> > [....]  
> > > > >
> > > > > The v5 of CCF has been posted ~2 weeks ago (with you on CC)
> > > > > with a high chance to be pulled by Stefano after the merge
> > > > > window opens.
> > > > >
> > > > > When we accept the "legacy" clock approach we will stuck with
> > > > > it for a long time.
> > > > >
> > > > > What approach is took by the Linux kernel? CCF or any other
> > > > > one?    
> > > >
> > > > I am not against CCF. I tried CCF and enabled on i.MX8MM in my
> > > > last patchset. But I have to add lots of code based on your
> > > > version, that introduces complexity for now.    
> > > 
> > > You will have to add this complexity anyway after people start
> > > demanding new clocks for IPs which they need to enable.
> > > 
> > > Moreover, the CCF v5 was posted 2 weeks ago - wasn't it enough
> > > time for applying your patches from v4?    
> > 
> > I have converted back to CCF for i.MX8MM/N. Pushed code
> > to https://github.com/MrVan/u-boot/commits/imx8mmn-ccf
> > 
> > Since there are 65 patches in my patchset, I not post to maillist.
> > 
> > Please see whether you have some general comments or not.  
> 
> I will try to provide some comments today. Thanks for the conversion.

Your patches from the github tree up to [1] seems to not touch the core
clock code and extend only clk-* (gate, mux, etc.) files.

They are similar to what you have posted previously on top of v4.

Two remarks:

- Please extract those CCF related github patches, port them on top of
  master with Stefano's last PR pulled and send to U-Boot mailing list
  (for final review and testing).

- I think that you can extend the sandbox test code [2] for binded
  clocks [3] - for example to read a clk freq value from such clock.
  Also test if the logic for "hiding" them works.


[1] -
https://github.com/MrVan/u-boot/commit/1a9b13178be10d0c6c6834808c36877b5b2dc49f

[2] -
https://github.com/MrVan/u-boot/commit/a89ca577c8c26aa962664dfe1f8e9fec1dd83f65

[3] -
https://github.com/MrVan/u-boot/commit/a088106f1b90b7ef6b7128c2c17671cd4d376aa9

> 
> > Then I'll post out to mail list. Hope it could catch this release
> > cycle.  
> 
> Let's be optimistic.
> 
> > 
> > Thanks,
> > Peng.
> >   
> > >     
> > > >    
> > > > >    
> > > > > > We might try to switch to CCF again in future,    
> > > > >
> > > > > I'm a bit skeptical about such statements. It never works like
> > > > > that
> > > > > - after it is accepted it would become a "legacy code which we
> > > > > do need to preserve".    
> > > > > > but we hope
> > > > > > i.MX8MM/N support could land in upstream soon. It has been
> > > > > > pending for months.    
> > > > >
> > > > > Was the CCF the reason for the i.MX8 not being pulled for so
> > > > > long?    
> > > >
> > > > I am not saying so.
> > > >
> > > > The first version to support i.MX8MM is in 2019-01-28. Then I
> > > > switch to CCF and posted out new version in 2019-4-30.    
> > > 
> > > Maybe the version posted in 2019-01-28 was just not ready for
> > > being pulled?
> > > 
> > > It happens that the community wants to avoid problems encountered
> > > earlier with other SoCs (like i.MX6, i.MX7), so the discussion
> > > takes time.
> > > 
> > > (The similar situation is with other projects too - how many
> > > release cycles it takes to add new SoC in Linux? Or new port to
> > > glibc?).   
> > > > we have many 3rd parties want to use mainline U-Boot, not our
> > > > vendor tree.    
> > > 
> > > There must be a reason that they want the U-Boot mainline. IMHO
> > > the main reason for it is that people not only from a single
> > > company want to add the code, so they need to discuss (and get the
> > > agreement) to avoid stepping in each other's toes.
> > > 
> > > And the discussion/tests takes time ...
> > >     
> > > > I hope
> > > > i.MX8MM/N could land in the coming merge window,    
> > > 
> > > This depends solely on the code quality I think.
> > >     
> > > > introducing more to CCF add risk.    
> > > 
> > > Risk for not being accepted?
> > > 
> > > I do see however other risk - the i.MX8 will gain one-off clock
> > > support code instead of adopting the CCF just from the outset.
> > > 
> > >     
> > > >
> > > > Thanks,
> > > > Peng.
> > > >    
> > > > >    
> > > > > >
> > > > > > Regards,
> > > > > > Peng.
> > > > > >    
> > > > > > >    
> > > > > > > >
> > > > > > > > Bai Ping (1):
> > > > > > > >   imx8mq: Update the ddrc QoS setting for B1 chip
> > > > > > > >
> > > > > > > > Jacky Bai (2):
> > > > > > > >   driver: ddr: Refine the ddr init driver on imx8m
> > > > > > > >   ddr: imx8m: Fix the ddr init hang on imx8mq
> > > > > > > >
> > > > > > > > Peng Fan (47):
> > > > > > > >   linux: compat: guard PAGE_SIZE
> > > > > > > >   dm: clk: ignore default settings when node not valid
> > > > > > > >   pinctrl: imx: use devfdt_get_addr_size_index
> > > > > > > >   i2c: mxc: add CONFIG_CLK support
> > > > > > > >   tools: imx8m_image: align spl bin image size
> > > > > > > >   ddr: imx8m: fix ddr firmware location when enable SPL
> > > > > > > > OF tools: imx8mimage: fix HDMI/FIT parsing
> > > > > > > >   imx8m: add image cfg for i.MX8MM lpddr4
> > > > > > > >   imx: add IMX8MQ kconfig entry
> > > > > > > >   imx: add IMX8MM kconfig entry
> > > > > > > >   imx: imx8mm: add clock bindings header
> > > > > > > >   imx: add i.MX8MM cpu type
> > > > > > > >   imx: spl: add spl_board_boot_device for i.MX8MM
> > > > > > > >   imx8m: update imx-regs for i.MX8MM
> > > > > > > >   imx: add get_cpu_rev support for i.MX8MM
> > > > > > > >   imx8m: rename clock to clock_imx8mq
> > > > > > > >   imx8m: restructure clock.h
> > > > > > > >   imx8m: add clk support for i.MX8MM
> > > > > > > >   imx8m: soc: probe clk before relocation
> > > > > > > >   imx8m: add pin header for i.MX8MM
> > > > > > > >   imx: add i.MX8MM PE property
> > > > > > > >   imx8m: Fix MMU table issue for OPTEE memory
> > > > > > > >   imx8m: set BYPASS ID SWAP to avoid AXI bus errors
> > > > > > > >   imx8m: soc: enable SCTR clock before timer init
> > > > > > > >   serial: Kconfig: make MXC_UART usable for MX7 and
> > > > > > > > IMX8M clk: imx: add Kconfig entry for i.MX8MM
> > > > > > > >   clk: imx: add i.MX8MM clk driver
> > > > > > > >   imx: add i.MX8MM EVK board support
> > > > > > > >   imx: add i.MX8MN kconfig entry
> > > > > > > >   imx8mn: support get_cpu_rev
> > > > > > > >   imx8m: add clk support for i.MX8MN
> > > > > > > >   imx8mn: set BYPASS ID SWAP to avoid AXI bus errors
> > > > > > > >   imx: add i.MX8MN PE property
> > > > > > > >   imx8mn: add pin header
> > > > > > > >   imx: spl: use spl_board_boot_device for i.MX8MN
> > > > > > > >   spl: pass args to board_return_to_bootrom
> > > > > > > >   imx: add rom api support
> > > > > > > >   imx: cpu: restrict get_boot_device
> > > > > > > >   imx8mn: add get_boot_device
> > > > > > > >   power: pmic: add SPL_DM_PMIC
> > > > > > > >   tools: imx8mimage: add ROM VERSION
> > > > > > > >   pinctrl: imx8m: support i.MX8MN
> > > > > > > >   tools: imx8m_image: support ddr4 firmware
> > > > > > > >   clk: imx: add i.MX8MN clk support
> > > > > > > >   imx8m: add i.MX8MN ddr4 image cfg file
> > > > > > > >   imx: add dtsi for i.MX8MN
> > > > > > > >   imx: add i.MX8MN DDR4 board support
> > > > > > > >
> > > > > > > > Ye Li (2):
> > > > > > > >   imx8m: Configure trustzone region 0 for non-secure
> > > > > > > > access ddr: imx8m: Fix ddr4 driver build issue
> > > > > > > >
> > > > > > > >  arch/arm/dts/Makefile
> > > > > > > > |    
> > > 4    
> > > > > +-    
> > > > > > > >  arch/arm/dts/imx8mm-evk-u-boot.dtsi                |
> > > > > > > > 92    
> > > +    
> > > > > > > >  arch/arm/dts/imx8mm-evk.dts
> > > > > > > > |    
> > > 235    
> > > > > +++    
> > > > > > > >  arch/arm/dts/imx8mm-pinfunc.h
> > > > > > > > |    
> > > 629    
> > > > > > > +++++++    
> > > > > > > >  arch/arm/dts/imx8mm.dtsi
> > > > > > > > |    
> > > 733    
> > > > > > > ++++++++    
> > > > > > > >  arch/arm/dts/imx8mn-ddr4-evk-u-boot.dtsi           |
> > > > > > > > 92 + arch/arm/dts/imx8mn-ddr4-evk.dts
> > > > > > > > |    
> > > 221    
> > > > > +++    
> > > > > > > >  arch/arm/dts/imx8mn-pinfunc.h
> > > > > > > > |    
> > > 646    
> > > > > > > +++++++    
> > > > > > > >  arch/arm/dts/imx8mn.dtsi
> > > > > > > > |    
> > > 712    
> > > > > > > +++++++    
> > > > > > > >  arch/arm/include/asm/arch-imx/cpu.h                |
> > > > > > > > 7    
> > > +    
> > > > > > > >  arch/arm/include/asm/arch-imx8m/clock.h            |
> > > > > > > > 494    
> > > > > +----    
> > > > > > > >  arch/arm/include/asm/arch-imx8m/clock_imx8mm.h
> > > > > > > > |    
> > > 465    
> > > > > > > +++++    
> > > > > > > >  arch/arm/include/asm/arch-imx8m/clock_imx8mq.h     |
> > > > > > > > 424    
> > > > > +++++    
> > > > > > > >  arch/arm/include/asm/arch-imx8m/imx-regs.h         |
> > > > > > > > 75    
> > > +-    
> > > > > > > >  arch/arm/include/asm/arch-imx8m/imx8mm_pins.h
> > > > > > > > |    
> > > 691    
> > > > > > > +++++++    
> > > > > > > >  arch/arm/include/asm/arch-imx8m/imx8mn_pins.h      |
> > > > > > > > 763    
> > > > > > > ++++++++    
> > > > > > > >  arch/arm/include/asm/mach-imx/iomux-v3.h
> > > > > > > > |    
> > > 4 +    
> > > > > > > >  arch/arm/include/asm/mach-imx/mxc_i2c.h
> > > > > > > > |    
> > > 2 +    
> > > > > > > >  arch/arm/include/asm/mach-imx/sys_proto.h          |
> > > > > > > > 42    
> > > +    
> > > > > > > >  arch/arm/mach-imx/Kconfig
> > > > > > > > |    
> > > 4 +    
> > > > > > > >  arch/arm/mach-imx/Makefile
> > > > > > > > |    
> > > 2 +    
> > > > > > > >  arch/arm/mach-imx/cpu.c
> > > > > > > > |    
> > > 16    
> > > > > +-    
> > > > > > > >  arch/arm/mach-imx/imx8m/Kconfig
> > > > > > > > |    
> > > 28    
> > > > > +-    
> > > > > > > >  arch/arm/mach-imx/imx8m/Makefile
> > > > > > > > |    
> > > 4    
> > > > > +-    
> > > > > > > >  arch/arm/mach-imx/imx8m/clock_imx8mm.c
> > > > > > > > |    
> > > 707    
> > > > > > > +++++++    
> > > > > > > >  .../arm/mach-imx/imx8m/{clock.c => clock_imx8mq.c} |
> > > > > > > > 7 +- arch/arm/mach-imx/imx8m/clock_slice.c
> > > > > > > > |  815    
> > > > > > > ++++++++    
> > > > > > > >  arch/arm/mach-imx/imx8m/imximage-8mm-lpddr4.cfg
> > > > > > > > |    
> > > 16 +    
> > > > > > > >  arch/arm/mach-imx/imx8m/imximage-8mn-ddr4.cfg
> > > > > > > > |    
> > > 17 +    
> > > > > > > >  arch/arm/mach-imx/imx8m/soc.c
> > > > > > > > |    
> > > 162    
> > > > > +-    
> > > > > > > >  arch/arm/mach-imx/spl.c
> > > > > > > > |    
> > > 8 +    
> > > > > > > >  arch/arm/mach-imx/spl_imx_romapi.c
> > > > > > > > |    
> > > 292    
> > > > > +++    
> > > > > > > >  arch/arm/mach-rockchip/rk3288-board-tpl.c          |
> > > > > > > > 5    
> > > +-    
> > > > > > > >  arch/arm/mach-rockchip/rk3368-board-tpl.c          |
> > > > > > > > 5    
> > > +-    
> > > > > > > >  arch/arm/mach-rockchip/rk3399-board-spl.c          |
> > > > > > > > 5    
> > > +-    
> > > > > > > >  arch/arm/mach-rockchip/rk3399-board-tpl.c          |
> > > > > > > > 5    
> > > +-    
> > > > > > > >  board/freescale/imx8mm_evk/Kconfig                 |
> > > > > > > > 12    
> > > +    
> > > > > > > >  board/freescale/imx8mm_evk/MAINTAINERS
> > > > > > > > |    
> > > 6    
> > > > > +    
> > > > > > > >  board/freescale/imx8mm_evk/Makefile
> > > > > > > > |    
> > > 12 +    
> > > > > > > >  board/freescale/imx8mm_evk/imx8mm_evk.c
> > > > > > > > |    
> > > 90    
> > > > > +    
> > > > > > > >  board/freescale/imx8mm_evk/lpddr4_timing.c         |
> > > > > > > > 1980 ++++++++++++++++++++
> > > > > > > > board/freescale/imx8mm_evk/spl.c                   |
> > > > > > > > 216    
> > > +++    
> > > > > > > > board/freescale/imx8mn_evk/Kconfig                 |
> > > > > > > > 14
> > > > > > > > + board/freescale/imx8mn_evk/MAINTAINERS             |
> > > > > > > > 6    
> > > +    
> > > > > > > > board/freescale/imx8mn_evk/Makefile                |
> > > > > > > > 12
> > > > > > > > + board/freescale/imx8mn_evk/ddr4_timing.c           |
> > > > > > > > 1214 ++++++++++++
> > > > > > > > board/freescale/imx8mn_evk/imx8mn_evk.c    
> > > > > > > |    
> > > > > > > > 85 + board/freescale/imx8mn_evk/spl.c
> > > > > > > > | 91    
> > > > > +    
> > > > > > > > board/freescale/imx8mq_evk/lpddr4_timing.c         |
> > > > > > > > 16 +- common/spl/spl_bootrom.c
> > > > > > > > |    7    
> > > +-    
> > > > > > > > configs/imx8mm_evk_defconfig                       |
> > > > > > > > 51    
> > > +    
> > > > > > > > configs/imx8mn_ddr4_evk_defconfig                  |
> > > > > > > > 55
> > > > > > > > + drivers/clk/clk-uclass.c                           |
> > > > > > > > 3 + drivers/clk/imx/Kconfig
> > > > > > > > |   14 +
> > > > > > > > drivers/clk/imx/Makefile                           |
> > > > > > > > 1
> > > > > > > > + drivers/clk/imx/clk-imx8mm.c                       |
> > > > > > > > 121    
> > > ++    
> > > > > > > > drivers/ddr/imx/imx8m/Kconfig                      |
> > > > > > > > 6
> > > > > > > > + drivers/ddr/imx/imx8m/Makefile                     |
> > > > > > > > 4    
> > > +-    
> > > > > > > > drivers/ddr/imx/imx8m/ddr4_init.c                  |
> > > > > > > > 113 --
> > > > > > > > drivers/ddr/imx/imx8m/ddr_init.c                   |
> > > > > > > > 168 ++ drivers/ddr/imx/imx8m/ddrphy_utils.c |    4 +
> > > > > > > > drivers/ddr/imx/imx8m/helper.c                     |
> > > > > > > > 22 +-
> > > > > > > > drivers/ddr/imx/imx8m/lpddr4_init.c                |
> > > > > > > > 188 -- drivers/i2c/mxc_i2c.c |   24    
> > > +-    
> > > > > > > > drivers/pinctrl/nxp/pinctrl-imx.c                  |
> > > > > > > > 4 +- drivers/pinctrl/nxp/pinctrl-imx8m.c
> > > > > > > > |    1 +
> > > > > > > > drivers/power/pmic/Kconfig                         |
> > > > > > > > 12
> > > > > > > > + drivers/power/pmic/Makefile                        |
> > > > > > > > 2    
> > > +-    
> > > > > > > > drivers/serial/Kconfig                             |
> > > > > > > > 2 +- include/configs/imx8mm_evk.h
> > > > > > > > | 200    
> > > ++    
> > > > > > > > include/configs/imx8mn_evk.h                       |
> > > > > > > > 198    
> > > ++    
> > > > > > > > include/dt-bindings/clock/imx8mm-clock.h           |
> > > > > > > > 244 +++
> > > > > > > > include/dt-bindings/clock/imx8mn-clock.h           |
> > > > > > > > 215 +++
> > > > > > > > include/imximage.h                                 |
> > > > > > > > 1    
> > > +    
> > > > > > > > include/linux/compat.h                             |
> > > > > > > > 2
> > > > > > > > + include/power/pmic.h                               |
> > > > > > > > 2    
> > > +-    
> > > > > > > > include/spl.h                                      |
> > > > > > > > 3    
> > > +-    
> > > > > > > > tools/imx8m_image.sh                               |    
> > > 15 +-    
> > > > > > > > tools/imx8mimage.c                                 |    
> > > 31 +-    
> > > > > 79    
> > > > > > > files    
> > > > > > > > changed, 13082 insertions(+), 814 deletions(-) create
> > > > > > > > mode 100644 arch/arm/dts/imx8mm-evk-u-boot.dtsi create
> > > > > > > > mode 100644 arch/arm/dts/imx8mm-evk.dts create mode
> > > > > > > > 100644 arch/arm/dts/imx8mm-pinfunc.h create mode 100644
> > > > > > > > arch/arm/dts/imx8mm.dtsi create mode 100644
> > > > > > > > arch/arm/dts/imx8mn-ddr4-evk-u-boot.dtsi create mode
> > > > > > > > 100644 arch/arm/dts/imx8mn-ddr4-evk.dts create mode
> > > > > > > > 100644 arch/arm/dts/imx8mn-pinfunc.h create mode 100644
> > > > > > > > arch/arm/dts/imx8mn.dtsi create mode 100644
> > > > > > > > arch/arm/include/asm/arch-imx8m/clock_imx8mm.h create
> > > > > > > > mode    
> > > > > 100644    
> > > > > > > > arch/arm/include/asm/arch-imx8m/clock_imx8mq.h create
> > > > > > > > mode    
> > > > > 100644    
> > > > > > > > arch/arm/include/asm/arch-imx8m/imx8mm_pins.h create
> > > > > > > > mode    
> > > > > 100644    
> > > > > > > > arch/arm/include/asm/arch-imx8m/imx8mn_pins.h create
> > > > > > > > mode    
> > > > > 100644    
> > > > > > > > arch/arm/mach-imx/imx8m/clock_imx8mm.c rename
> > > > > > > > arch/arm/mach-imx/imx8m/{clock.c => clock_imx8mq.c}
> > > > > > > > (99%) create    
> > > > > > > mode    
> > > > > > > > 100644 arch/arm/mach-imx/imx8m/imximage-8mm-lpddr4.cfg
> > > > > > > > create    
> > > > > > > mode    
> > > > > > > > 100644 arch/arm/mach-imx/imx8m/imximage-8mn-ddr4.cfg
> > > > > > > > create    
> > > > > mode    
> > > > > > > > 100644 arch/arm/mach-imx/spl_imx_romapi.c create mode
> > > > > > > > 100644 board/freescale/imx8mm_evk/Kconfig create mode
> > > > > > > > 100644 board/freescale/imx8mm_evk/MAINTAINERS create
> > > > > > > > mode 100644 board/freescale/imx8mm_evk/Makefile create
> > > > > > > > mode 100644 board/freescale/imx8mm_evk/imx8mm_evk.c
> > > > > > > > create mode 100644
> > > > > > > > board/freescale/imx8mm_evk/lpddr4_timing.c create mode
> > > > > > > > 100644 board/freescale/imx8mm_evk/spl.c create mode
> > > > > > > > 100644 board/freescale/imx8mn_evk/Kconfig create mode
> > > > > > > > 100644 board/freescale/imx8mn_evk/MAINTAINERS create
> > > > > > > > mode 100644 board/freescale/imx8mn_evk/Makefile create
> > > > > > > > mode 100644 board/freescale/imx8mn_evk/ddr4_timing.c
> > > > > > > > create mode 100644
> > > > > > > > board/freescale/imx8mn_evk/imx8mn_evk.c create mode
> > > > > > > > 100644 board/freescale/imx8mn_evk/spl.c create mode
> > > > > > > > 100644 configs/imx8mm_evk_defconfig create mode 100644
> > > > > > > > configs/imx8mn_ddr4_evk_defconfig create mode 100644
> > > > > > > > drivers/clk/imx/clk-imx8mm.c delete mode 100644
> > > > > > > > drivers/ddr/imx/imx8m/ddr4_init.c create mode 100644
> > > > > > > > drivers/ddr/imx/imx8m/ddr_init.c delete mode 100644
> > > > > > > > drivers/ddr/imx/imx8m/lpddr4_init.c create mode 100644
> > > > > > > > include/configs/imx8mm_evk.h create mode 100644
> > > > > > > > include/configs/imx8mn_evk.h create mode 100644
> > > > > > > > include/dt-bindings/clock/imx8mm-clock.h create mode
> > > > > > > > 100644 include/dt-bindings/clock/imx8mn-clock.h   
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > Best regards,
> > > > > > >
> > > > > > > Lukasz Majewski
> > > > > > >
> > > > > > > --
> > > > > > >
> > > > > > > DENX Software Engineering GmbH,      Managing
> > > > > > > Director:    
> > > Wolfgang    
> > > > > > > Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194
> > > > > > > Groebenzell, Germany Phone: (+49)-8142-66989-59 Fax:
> > > > > > > (+49)-8142-66989-80 Email: lukma at denx.de    
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > Best regards,
> > > > >
> > > > > Lukasz Majewski
> > > > >
> > > > > --
> > > > >
> > > > > DENX Software Engineering GmbH,      Managing Director:
> > > > > Wolfgang Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194
> > > > > Groebenzell, Germany Phone: (+49)-8142-66989-59 Fax:
> > > > > (+49)-8142-66989-80 Email: lukma at denx.de    
> > > 
> > > 
> > > 
> > > 
> > > Best regards,
> > > 
> > > Lukasz Majewski
> > > 
> > > --
> > > 
> > > DENX Software Engineering GmbH,      Managing Director: Wolfgang
> > > Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell,
> > > Germany Phone: (+49)-8142-66989-59 Fax: (+49)-8142-66989-80 Email:
> > > lukma at denx.de    
> 
> 
> 
> 
> Best regards,
> 
> Lukasz Majewski
> 
> --
> 
> DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
> HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
> Phone: (+49)-8142-66989-59 Fax: (+49)-8142-66989-80 Email:
> lukma at denx.de




Best regards,

Lukasz Majewski

--

DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-59 Fax: (+49)-8142-66989-80 Email: lukma at denx.de
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