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hw/misc: Implement mailbox properties for customer OTP and device specific private keys

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Four mailbox properties are implemented as follows:
1. Customer OTP: GET_CUSTOMER_OTP and SET_CUSTOMER_OTP
2. Device-specific private key: GET_PRIVATE_KEY and
SET_PRIVATE_KEY.

The customer OTP is located in the rows 36-43. The device-specific private key
is located in the rows 56-63.

The customer OTP can be locked with the magic numbers 0xffffffff 0xaffe0000
when running the SET_CUSTOMER_OTP mailbox command. Bit 6 of row 32 indicates
this lock, which is undocumented. The lock also applies to the device-specific
private key.

Signed-off-by: Rayhan Faizel <rayhan.faizel@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Rayhan Faizel 2024-05-19 15:11:06 +05:30 • committed by Peter Maydell
parent 6bf7993921
commit 5d5f1b6091
4 changed files with 93 additions and 0 deletions
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2
include/hw/arm/raspberrypi-fw-defs.h
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@ -56,6 +56,7 @@ enum rpi_firmware_property_tag {
RPI_FWREQ_GET_THROTTLED = 0x00030046,
RPI_FWREQ_GET_CLOCK_MEASURED = 0x00030047,
RPI_FWREQ_NOTIFY_REBOOT = 0x00030048,
RPI_FWREQ_GET_PRIVATE_KEY = 0x00030081,
RPI_FWREQ_SET_CLOCK_STATE = 0x00038001,
RPI_FWREQ_SET_CLOCK_RATE = 0x00038002,
RPI_FWREQ_SET_VOLTAGE = 0x00038003,
@ -73,6 +74,7 @@ enum rpi_firmware_property_tag {
RPI_FWREQ_SET_PERIPH_REG = 0x00038045,
RPI_FWREQ_GET_POE_HAT_VAL = 0x00030049,
RPI_FWREQ_SET_POE_HAT_VAL = 0x00038049,
RPI_FWREQ_SET_PRIVATE_KEY = 0x00038081,
RPI_FWREQ_SET_POE_HAT_VAL_OLD = 0x00030050,
RPI_FWREQ_NOTIFY_XHCI_RESET = 0x00030058,
RPI_FWREQ_GET_REBOOT_FLAGS = 0x00030064,