Hi Fabio,
On 08/31/2017 06:56 AM, Fabio Estevam wrote:
On Thu, Aug 31, 2017 at 10:35 AM, Fabio Estevam festevam@gmail.com wrote:
Hi Eric,
On Wed, Aug 30, 2017 at 7:13 PM, Eric Nelson eric@nelint.com wrote:
This adds support for two additional boot modes on the i.MX7D SoC, which is most useful when doing U-Boot development on this chip.
- "bmode usb" can be used to force the ROM boot loader's serial
- "bmode normal" can be used to revert to the normal boot mode as specified by fuses and BOOT_MODE pins
Signed-off-by: Eric Nelson eric@nelint.com
I tried testing your patch on a imx7d sabresd, but it seems there is an issue with bmode that is unrelated to your patch.
I also did:
diff --git a/configs/mx7dsabresd_defconfig b/configs/mx7dsabresd_defconfig index 8f2e33a..c70fde8 100644 --- a/configs/mx7dsabresd_defconfig +++ b/configs/mx7dsabresd_defconfig @@ -5,7 +5,6 @@ CONFIG_VIDEO=y # CONFIG_ARMV7_VIRT is not set CONFIG_IMX_RDC=y CONFIG_IMX_BOOTAUX=y -# CONFIG_CMD_BMODE is not set CONFIG_DEFAULT_DEVICE_TREE="imx7d-sdb" CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=board/freescale/mx7dsabresd/imximage.cfg" CONFIG_BOOTDELAY=3
so that bmode command can be added.
However I am getting:
=> bmode usb bmode - <NULL>
I missed to add 'add_board_boot_modes(board_boot_modes);'
Now I get:
=> bmode usb resetting ...
U-Boot 2017.09-rc2-36996-g63af4b0-dirty (Aug 31 2017 - 10:53:12 -0300)
CPU: Freescale i.MX7D rev1.2 1000 MHz (running at 792 MHz) CPU: Commercial temperature grade (0C to 95C) at 41C Reset cause: POR Model: Freescale i.MX7 SabreSD Board Board: i.MX7D SABRESD in non-secure mode DRAM: 1 GiB PMIC: PFUZE3000 DEV_ID=0x30 REV_ID=0x11 MMC: MMC Device 0 not found *** Warning - No MMC card found, using default environment
Video: 480x272x24 In: serial Out: serial Err: serial Net: FEC0 Hit any key to stop autoboot: 0 =>
So the board is resetting instead of going into serial download mode.
Any ideas?
I'm not sure. Since I'm currently working with a board with no fuses blown, I'm getting USB mode either way ;)...
I have an MX7 SABRE SD and I'll try it out there.
Regards,
Eric