i.MX ProcessorsのトピックRe: CPU1: failed to come online

CPU1: failed to come online

Chenyi_Luo — Fri, 30 Dec 2022 10:18:42 GMT

Hello，

I meet a problem during the imx8qxp processor start up, the CPU1,2,3 fail to come online.

I use the imx-yocto-L5.4.24_2.1.0 version.

Is the problem related to the configuration of scfw?

Thanks

Re: CPU1: failed to come online

Dhruvit — Tue, 03 Jan 2023 07:54:00 GMT

Hi @Chenyi_Luo,

From the boot logs, it is found that you are using 1 GB DRAM.

1. Please make sure that you have followed the steps mentioned in 5.7 Adding OP-TEE support for a new board of i.MX Porting Guide and have set the correct value for CFG_DDR_SIZE.

2. Please consider the below change in /plat/imx/imx8qx/platform.mk in imx-atf ( As existing value 0xfe000000 will overwrite 1 GB limit (0xC0000000))

ifeq (${PLAT},imx8dx) BL32_BASE ?= 0x96000000 else BL32_BASE ?= 0x96000000 endif

3. Also make a similar change at /iMX8QX/soc.mak at imx-boot as below:

ifeq ($(SOC),iMX8DX) TEE_LOAD_ADDR ?= 0x96000000 else ifeq ($(SOC),iMX8QX) TEE_LOAD_ADDR ?= 0x96000000 endif

Thanks & Regards,
Dhruvit.

Re: CPU1: failed to come online

Chenyi_Luo — Tue, 03 Jan 2023 13:40:26 GMT

Hello @Dhruvit ,

Yes, we are using 1GB DDR now.

According to your reply, I adjusted the configuration of the memory size:

1.imx-atf/plat/imx/imx8qx/platform.mk

ifeq (${PLAT},imx8dx) BL32_BASE ?= 0x96000000 else BL32_BASE ?= 0x96000000 endif

2.imx-mkimage/iMX8QX/soc.mak

ifeq ($(SOC),iMX8DX) TEE_LOAD_ADDR ?= 0x96000000 else ifeq ($(SOC),iMX8QX) TEE_LOAD_ADDR ?= 0x96000000 endif

3.optee-os/core/arch/arm/plat-imx/conf.mk

ifneq (,$(filter $(PLATFORM_FLAVOR),mx8qxpmek mx8qmmek)) CFG_DDR_SIZE ?= 0x40000000 CFG_UART_BASE ?= UART0_BASE endif

In addition, we also have some configuration about memory before:

4.uboot/include/configs/imx8qxp_mek.h

#ifdef CONFIG_TARGET_IMX8DX_MEK #define PHYS_SDRAM_1_SIZE 0x40000000 /* 1 GB */ #define PHYS_SDRAM_2_SIZE 0x00000000 /* 0 GB */ #else #if 0 #define PHYS_SDRAM_1_SIZE 0x80000000 /* 2 GB */ /* LPDDR4 board total DDR is 3GB */ #define PHYS_SDRAM_2_SIZE 0x40000000 /* 1 GB */ #else /* total DDR is 1GB */ #define PHYS_SDRAM_1_SIZE 0x40000000 /* 1 GB */ #define PHYS_SDRAM_2_SIZE 0x00000000 /* 0 GB */ #endif #endif

The above four changes are all of our changes to the memory size.

If there is only the fourth change point, then CPU startup will be abnormal(CPU1: failed to come online).

But if all four change points take effect, the download will be abnormal.

It will stack at "SDPV: jump", as the 图片.png shows.

The uuu script is emmc.uuu.txt.

Why is this? Is it because we set it up incorrectly?

Thank you.

Re: CPU1: failed to come online

Dhruvit — Thu, 05 Jan 2023 12:31:46 GMT

Hi @Chenyi_Luo ,

BL32_BASE value can be calculated as below for i.MX8QXP:

BL32_BASE = DRAM_BASE - 0x02000000 + DDR_SIZE

For 1 GB DRAM BL32_BASE can be configured to 0xBE000000.

Please change the value of BL32_BASE and TEE_LOAD_ADDR to 0xBE000000.

Please make sure that you have updated the DDR configuration in SCFW using i.MX 8/8X Family DDR Tools.

Thanks & Regards,

Dhruvit Vasavada

Re: CPU1: failed to come online

Chenyi_Luo — Tue, 10 Jan 2023 07:49:14 GMT

Hello,

We change the size of memory to 0xBE000000.

Now CPU can start normally.

Thank you.

Re: CPU1: failed to come online

Dhruvit — Tue, 10 Jan 2023 14:07:18 GMT

Hi @Chenyi_Luo

Can I mark this case to close state?

Thanks & Regards

Dhruvit Vasavada

Re: CPU1: failed to come online

Chenyi_Luo — Wed, 11 Jan 2023 01:24:59 GMT

Hello，

Sure.

Thank you.