Change in coreboot[master]: mb/google/brya: set GPP_D0 to GPO and unlocked

[Zhuohao Lee (Code Review)]

Attention is currently required from: YH Lin, Nick Vaccaro, Eric Lai, Mark Hsieh, EricR Lai, Felix Held.
Zhuohao Lee has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/62739 )

Change subject: mb/google/brya: set GPP_D0 to GPO and unlocked
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Patch Set 4:

(1 comment)

File src/mainboard/google/brya/variants/baseboard/brya/gpio.c:

https://review.coreboot.org/c/coreboot/+/62739/comment/706d6bfd_4806f5fc 
PS2, Line 122: 	/* D1  : ISH_GP1 ==> FP_RST_ODL */
             : 	PAD_CFG_GPO_LOCK(GPP_D1, 1, LOCK_CONFIG),
             : 	/* D2  : ISH_GP2 ==> EN_FP_PWR */
             : 	PAD_CFG_GPO_LOCK(GPP_D2, 1, LOCK_CONFIG),
> Why? GPIO with LOCK still can set the Tx. Should check the FP flash script as well. […]

Could you please try to read the value back with below command after using the kernel sysfs to output the gpio value? We need to make sure the gpio pin can be controlled correctly.

iotools mmio_read32 0xfd6d0900
iotools mmio_read32 0xfd6d0910
iotools mmio_read32 0xfd6d0920