i.MX ProcessorsのトピックRe: imx6 boot from eFuses

imx6 boot from eFuses

santhosh205415 — Tue, 15 Sep 2020 10:39:31 GMT

Hi All,

I am planning to configure imx6 into a boot from eMMC always.

my configuration is

BOOT_MODE[1:0] set always 00.

and I will burn the BT_FUSE_SEL into 1, efuses accordingly to boot from eMMC.

So now my questions are,

1. Is it possible to reflash the eMMC later as my firmware changes? if yes please let me know the procedure?

2. I want to interface 2 parallel cameras (10bit mode) into imx6

Camera1 pin connections I have no issues.

Camera 2 pin connection I have added here, in this pins list few pins are shared with boot configuration pins.

is there a problem if I use these pins to connect my camera. anyways I am planning boot from eFuses.

IPU2_CSI1_DATA10	EIM_EB1	(ALT2)
IPU2_CSI1_DATA11	EIM_EB0	(ALT2)
IPU2_CSI1_DATA12	EIM_A17	(ALT2)
IPU2_CSI1_DATA13	EIM_A18	(ALT2)
IPU2_CSI1_DATA14	EIM_A19	(ALT2)
IPU2_CSI1_DATA15	EIM_A20	(ALT2)
IPU2_CSI1_DATA16	EIM_A21	(ALT2)
IPU2_CSI1_DATA17	EIM_A22	(ALT2)
IPU2_CSI1_DATA18	EIM_A23	(ALT2)
IPU2_CSI1_DATA19	EIM_A24	(ALT2)
IPU2_CSI1_HSYNC	EIM_DA11	(ALT2)
IPU2_CSI1_VSYNC	EIM_DA12	(ALT2)
IPU2_CSI1_PIXCLK	EIM_A16	(ALT2)
IPU2_CSI1_DATA_EN	EIM_DA10	(ALT2)

Thank you in advance.

Re: imx6 boot from eFuses

art — Mon, 21 Sep 2020 09:48:58 GMT

1. If you plan to use the Linux BSP by NXP, you can use the procedure, described in the "Downloading images using U-Boot" section of the corresponding i.MX Linux User's Guide document.

Otherwise, you have two options as follows:

- add a simple switch to your hardware to be able to switch the BOOT_MODE[1:0] signals to 01 to boot the processor in the Serial Downloader mode, then use the regualr procedure with UUU tool;
- use an external eMMC programming tool.

2. There is no problem to use these pins for CSI function as you describe.

Best Regards,
Artur

Re: imx6 boot from eFuses

santhosh205415 — Mon, 21 Sep 2020 10:53:06 GMT

Thank you for your support.