spread spectrum on imx6

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spread spectrum on imx6

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jack_mao
NXP Employee
NXP Employee

Here are documents for spread spectrum

Original Attachment has been moved to: flash_header.S.zip

Original Attachment has been moved to: 0005-ENGR00285890-imx6-plugin-update-the-ROM_API_TABLE_BA.patch.zip

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jack_mao
NXP Employee
NXP Employee

the sample code has a error, attached patch has fix it, so it should like the following

before_calling_rom___pu_irom_hwcnfg_setup:
    ldr r3, =ROM_VERSION_OFFSET
    ldr r4, [r3]
    ldr r3, =ROM_VERSION_TO12
    cmp r4, r3
    ldrge r3, =ROM_API_TABLE_BASE_ADDR_MX6DL_TO12
    ldrlt r3, =ROM_API_TABLE_BASE_ADDR_LEGACY
    ldr r4, [r3, #ROM_API_HWCNFG_SETUP_OFFSET]
    blx r4 /* This address might change in future ROM versions */
after_calling_rom___pu_irom_hwcnfg_setup:

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宗標廖
Contributor V

Hello Jack Mao

The flash_header.S is for LTIB.

Could you tell me how to implement spread spectrum for Yocto.

Thank you very much!

ZongbiaoLiao

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jack_mao
NXP Employee
NXP Employee

Yocto has a plugin macro to enable spread specturm, very simple

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petertseng
Contributor III

Hi Jack Mao,

I also need to implement the spread spectrum for Yocto.

Whether it can prompt the source location and implement method.

regards

Peter Tseng

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