MSCMMX6Q NAND boot

marcingrzelak — Fri, 22 Jan 2021 17:46:53 GMT

Hi,

I have a custom board with MSCMMX6Q processor and MT29F4G08ABADAWP. I have no problem with booting it from eMMC and SD card. Now trying to boot it from NAND memory - unsuccessfully. I would like to ask you for help.

My eFuse configuration for i.MX6Q (image in attachment):
BOOT_CFG1[7] = 0x1;
BOOT_CFG1[5] = 0x0;
BOOT_CFG1[5] = 0x0;
BOOT_CFG1[4] = 0x0;
BOOT_CFG1[3:2] = 0x00;
BOOT_CFG1[1:0] = 0x00;

BOOT_CFG2[7:5] = 0x00;
BOOT_CFG2[4:3] = 0x00;
BOOT_CFG2[2:1] = 0x01;
BOOT_CFG2[0] = 0x01;

Is it correct?

I wrote u-boot.imx by kobs-ng (logs in file kobs-ng_init_dump.txt).
I also attach a printed FCB page by nanddump and raw page from u-boot (files nandump.txt and read_nand_raw.txt) and waveform with NANDF_RE_B activity.

Best regards

Re: MSCMMX6Q NAND boot

Rita_Wang — Mon, 25 Jan 2021 06:58:41 GMT

For the NAND boot you can see RM Chapter 5
Fusemap Table 5-8. NAND Boot Fusemap

Re: MSCMMX6Q NAND boot

marcingrzelak — Tue, 26 Jan 2021 09:00:47 GMT

Hi b45499

For registers BOOT_CFG1 and BOOT_CFG2 table 5-8 a is the same as table table 8-10. Are my settings correct? FCB were written correctly by kobs-ng?

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