[PATCH] ARM: imx: Fix parsing of ROM log event IDs on iMX8M

[Peng Fan]

Hi,

Marek pointed me this thread. I admitted I overlooked this patch.
Will check internally and back.

Regards,
Peng.

On 4/15/2022 2:00 AM, Fedor Ross wrote:
> Hello Peng,
> 
> can you please check the parameter of event 0x82 internally? The AN12853
> doesn't mention a parameter for ID 0x82, but we see something else coming
> out of the bootrom of iMX8MN.
> 
> Best regards,
> Fedor
> 
> Am Do., 14. Apr. 2022 um 18:37 Uhr schrieb <fedorross at gmail.com>:
>>
>> From: Fedor Ross <fedor.ross at ifm.com>
>>
>> It seems like the ROM log events for the iMX8M are not fully covered by
>> AN12853 i.MX ROMs Log Events, Rev. 0, May 2020. On iMX8M the ROM event
>> ID 0x82 seems to use parameter0 which stops the parsing because the end
>> of list is detected too early.
>>
>> This patch adds ROM event ID 0x82 and skips the next word if ID 0x82 is
>> parsed.
>>
>>
>> Fixes: a5ee05cf71 ("ARM: imx: Pick correct eMMC boot partition from ROM
> log")
>>
>> Signed-off-by: Fedor Ross <fedor.ross at ifm.com>
>> Cc: Fabio Estevam <festevam at gmail.com>
>> Cc: Marek Vasut <marex at denx.de>
>> Cc: Peng Fan <peng.fan at nxp.com>
>> Cc: Stefano Babic <sbabic at denx.de>
>> ---
>>   arch/arm/mach-imx/imx8m/soc.c | 1 +
>>   1 file changed, 1 insertion(+)
>>
>> diff --git a/arch/arm/mach-imx/imx8m/soc.c b/arch/arm/mach-imx/imx8m/soc.c
>> index 8171631db1..4df57cb150 100644
>> --- a/arch/arm/mach-imx/imx8m/soc.c
>> +++ b/arch/arm/mach-imx/imx8m/soc.c
>> @@ -677,6 +677,7 @@ int spl_mmc_emmc_boot_partition(struct mmc *mmc)
>>                  /* Log entries with 1 parameter, skip 1 */
>>                  case 0x80: /* Start to perform the device initialization
> */
>>                  case 0x81: /* The boot device initialization completes */
>> +               case 0x82: /* Starts to execute boot device driver
> pre-config */
>>                  case 0x8f: /* The boot device initialization fails */
>>                  case 0x90: /* Start to read data from boot device */
>>                  case 0x91: /* Reading data from boot device completes */
>> --
>> 2.20.1
>>