[U-Boot] [PATCH] pico-imx6ul, pico-imx7d: Explain how to use eMMC user partition
The default U-Boot environment expects the use of eMMC user partition. To ensure we are using the proper eMMC partition for boot we need to run the `mmc partconf` command. This patch updates the README instructions to avoid users to follow misleading instructions. Signed-off-by: Otavio Salvador --- board/technexion/pico-imx6ul/README | 9 - board/technexion/pico-imx7d/README | 9 - 2 files changed, 16 insertions(+), 2 deletions(-) diff --git a/board/technexion/pico-imx6ul/README b/board/technexion/pico-imx6ul/README index bb8ee3f463..31f13d1b1d 100644 --- a/board/technexion/pico-imx6ul/README +++ b/board/technexion/pico-imx6ul/README @@ -50,7 +50,14 @@ Use the default environment variables: 2. Flashing U-Boot into the eMMC -Run the DFU agent so we can flash the new images using dfu-util tool: +The default U-Boot environment expects the use of eMMC user +partition. To ensure we are using the proper eMMC partition for boot, +please run: + +=> mmc partconf 0 0 0 0 + +Next, un the DFU agent so we can flash the new images using dfu-util +tool: => dfu 0 mmc 0 diff --git a/board/technexion/pico-imx7d/README b/board/technexion/pico-imx7d/README index 24eb97e82c..525b0a6aec 100644 --- a/board/technexion/pico-imx7d/README +++ b/board/technexion/pico-imx7d/README @@ -47,7 +47,14 @@ Use the default environment variables: 2. Flashing U-Boot into the eMMC -Run the DFU agent so we can flash the new images using dfu-util tool: +The default U-Boot environment expects the use of eMMC user +partition. To ensure we are using the proper eMMC partition for boot, +please run: + +=> mmc partconf 0 0 0 0 + +Next, un the DFU agent so we can flash the new images using dfu-util +tool: => dfu 0 mmc 0 -- 2.21.0 ___ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
Re: [U-Boot] [PATCH] pico-imx6ul, pico-imx7d: Explain how to use eMMC user partition
Hi Otavio, On Fri, Mar 22, 2019 at 9:28 AM Otavio Salvador wrote: > 2. Flashing U-Boot into the eMMC > > -Run the DFU agent so we can flash the new images using dfu-util tool: > +The default U-Boot environment expects the use of eMMC user > +partition. To ensure we are using the proper eMMC partition for boot, > +please run: > + > +=> mmc partconf 0 0 0 0 > + > +Next, un the DFU agent so we can flash the new images using dfu-util Typo: it should be "run" instead of "un" I tested the instructions and it did not work for me. After I ran these steps I still got the old U-Boot on the eMMC. The procedure that worked here is: => dfu 0 mmc 0 Flash SPL => dfu 0 mmc 0 Flash U-Boot proper => mmc partconf 0 0 0 0 => saveenv ___ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
Re: [U-Boot] [PATCH] pico-imx6ul, pico-imx7d: Explain how to use eMMC user partition
On Fri, Mar 22, 2019 at 2:40 PM Fabio Estevam wrote: > On Fri, Mar 22, 2019 at 9:28 AM Otavio Salvador > wrote: > > 2. Flashing U-Boot into the eMMC > > > > -Run the DFU agent so we can flash the new images using dfu-util tool: > > +The default U-Boot environment expects the use of eMMC user > > +partition. To ensure we are using the proper eMMC partition for boot, > > +please run: > > + > > +=> mmc partconf 0 0 0 0 > > + > > +Next, un the DFU agent so we can flash the new images using dfu-util > > Typo: it should be "run" instead of "un" > > I tested the instructions and it did not work for me. After I ran > these steps I still got the old U-Boot on the eMMC. > > The procedure that worked here is: > > => dfu 0 mmc 0 > Flash SPL > => dfu 0 mmc 0 > Flash U-Boot proper > > => mmc partconf 0 0 0 0 > => saveenv I sent a v2. The order is: Use the default environment variables: => env default -f -a => saveenv To ensure we are using the proper eMMC partition for boot, please run: => mmc partconf 0 0 0 0 Next, run the DFU agent so we can flash the new images using dfu-util tool: => dfu 0 mmc 0 Flash SPL and u-boot-dtb.img into the eMMC running the following commands on a PC: $ sudo dfu-util -D SPL -a spl $ sudo dfu-util -D u-boot-dtb.img -a u-boot The environment setup but be run using the current U-Boot as it has the dfu_alt_info which needs to be used. Please try this sequence and see if it works for you. -- Otavio Salvador O.S. Systems http://www.ossystems.com.brhttp://code.ossystems.com.br Mobile: +55 (53) 9 9981-7854 Mobile: +1 (347) 903-9750 ___ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot