i.MX ProcessorsのトピックRe: system will be stuck in readl_relaxed function when UUU tool flash image

system will be stuck in readl_relaxed function when UUU tool flash image

CoolSean — Tue, 01 Oct 2024 08:45:14 GMT

I created a new function imx8mp opp_check_temp_grading() and read the efuse data(1.png), but the system gets stuck on readl_relaxed when flash the image by UUU tool .

Re: system will be stuck in readl_relaxed function when UUU tool flash image

Manuel_Salas — Tue, 01 Oct 2024 16:23:47 GMT

Hello @CoolSean

I hope you are doing well.

Could you please share the logs of issue in UUU tool?

Are you able to flash successfully without your custom functions?

Best regards,

Salas.

Re: system will be stuck in readl_relaxed function when UUU tool flash image

CoolSean — Fri, 04 Oct 2024 01:08:33 GMT

Could you please share the logs of issue in UUU tool?

There are no errors in log. It get stuck on readl_relaxed when system reboot to copy DTS and kernel image to /run/media/mmcblk2p1

Are you able to flash successfully without your custom functions?

Yes, it will flash successfully without readl_relaxed. There are no errors in of_find_compatible_node and of_iomap functions.

And I found the same code in sources/linux-imx/drivers/soc/imx/soc-imx8m.c, which can success to readl / writel to efuse (0x30350000)

np = of_find_compatible_node(NULL, NULL, "fsl,imx8mm-ocotp"); if (!np) return; ocotp_base = of_iomap(np, 0); WARN_ON(!ocotp_base); clk = of_clk_get_by_name(np, NULL); if (IS_ERR(clk)) { WARN_ON(IS_ERR(clk)); return; } clk_prepare_enable(clk); soc_uid = readl_relaxed(ocotp_base + OCOTP_UID_HIGH + offset); soc_uid <<= 32; soc_uid |= readl_relaxed(ocotp_base + OCOTP_UID_LOW + offset); if (offset) { soc_uid_h = readl_relaxed(ocotp_base + IMX8MP_OCOTP_UID_HIGH + 0x10); soc_uid_h <<= 32; soc_uid_h |= readl_relaxed(ocotp_base + IMX8MP_OCOTP_UID_HIGH); }

My function add in sources/linux-imx/drivers/thermal/imx8mm_thermal.c , but it cannot read efuse memory successfully

Re: system will be stuck in readl_relaxed function when UUU tool flash image

CoolSean — Mon, 07 Oct 2024 01:42:03 GMT

Hi @Manuel_Salas

Have any suggestion?