272 lines
10 KiB
ReStructuredText
272 lines
10 KiB
ReStructuredText
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Steps to blow fuses on NXP LS SoC:
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==================================
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- Enable POVDD
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-- Refer board GSG(Getting Started Guide) for the steps to enable POVDD.
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-- Once the POVDD is enabled, make sure to set variable POVDD_ENABLE := yes, in the platform.mk.
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+---+-----------------+-----------+------------+-----------------+-----------------------------+
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| | Platform | Jumper | Switch | LED to Verify | Through GPIO Pin (=number) |
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+===+=================+===========+============+=================+=============================+
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| 1.| lx2160ardb | J9 | | | no |
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+---+-----------------+-----------+------------+-----------------+-----------------------------+
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| 2.| lx2160aqds | J35 | | | no |
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+---+-----------------+-----------+------------+-----------------+-----------------------------+
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| 3.| lx2162aqds | J35 | SW9[4] = 1 | D15 | no |
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+---+-----------------+-----------+------------+-----------------+-----------------------------+
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- SFP registers to be written to:
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+---+----------------------------------+----------------------+----------------------+
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| | Platform | OTPMKR0..OTPMKR7 | SRKHR0..SRKHR7 |
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+===+==================================+======================+======================+
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| 1.| lx2160ardb/lx2160aqds/lx2162aqds | 0x1e80234..0x1e80250 | 0x1e80254..0x1e80270 |
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+---+----------------------------------+----------------------+----------------------+
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- At U-Boot prompt, verify that SNVS register - HPSR, whether OTPMK was written, already:
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+---+----------------------------------+-------------------------------------------+---------------+
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| | Platform | OTPMK_ZERO_BIT(=value) | SNVS_HPSR_REG |
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+===+==================================+===========================================+===============+
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| 1.| lx2160ardb/lx2160aqds/lx2162aqds | 27 (= 1 means not blown, =0 means blown) | 0x01E90014 |
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+---+----------------------------------+-------------------------------------------+---------------+
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From u-boot prompt:
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-- Check for the OTPMK.
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.. code:: shell
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md $SNVS_HPSR_REG
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Command Output:
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01e90014: 88000900
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In case it is read as 00000000, then read this register using jtag (in development mode only through CW tap).
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+0 +4 +8 +C
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[0x01E90014] 88000900
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Note: OTPMK_ZERO_BIT is 1, indicating that the OTPMK is not blown.
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-- Check for the SRK Hash.
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.. code:: shell
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md $SRKHR0 0x10
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Command Output:
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01e80254: 00000000 00000000 00000000 00000000 ................
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01e80264: 00000000 00000000 00000000 00000000 ................
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Note: Zero means that SRK hash is not blown.
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- If not blown, then from the U-Boot prompt, using following commands:
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-- Provision the OTPMK.
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.. code:: shell
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mw.l $OTPMKR0 <OTMPKR_0_32Bit_val>
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mw.l $OTPMKR1 <OTMPKR_1_32Bit_val>
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mw.l $OTPMKR2 <OTMPKR_2_32Bit_val>
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mw.l $OTPMKR3 <OTMPKR_3_32Bit_val>
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mw.l $OTPMKR4 <OTMPKR_4_32Bit_val>
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mw.l $OTPMKR5 <OTMPKR_5_32Bit_val>
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mw.l $OTPMKR6 <OTMPKR_6_32Bit_val>
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mw.l $OTPMKR7 <OTMPKR_7_32Bit_val>
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-- Provision the SRK Hash.
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.. code:: shell
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mw.l $SRKHR0 <SRKHR_0_32Bit_val>
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mw.l $SRKHR1 <SRKHR_1_32Bit_val>
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mw.l $SRKHR2 <SRKHR_2_32Bit_val>
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mw.l $SRKHR3 <SRKHR_3_32Bit_val>
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mw.l $SRKHR4 <SRKHR_4_32Bit_val>
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mw.l $SRKHR5 <SRKHR_5_32Bit_val>
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mw.l $SRKHR6 <SRKHR_6_32Bit_val>
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mw.l $SRKHR7 <SRKHR_7_32Bit_val>
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Note: SRK Hash should be carefully written keeping in mind the SFP Block Endianness.
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- At U-Boot prompt, verify that SNVS registers for OTPMK are correctly written:
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-- Check for the OTPMK.
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.. code:: shell
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md $SNVS_HPSR_REG
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Command Output:
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01e90014: 80000900
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OTPMK_ZERO_BIT is zero, indicating that the OTPMK is blown.
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Note: In case it is read as 00000000, then read this register using jtag (in development mode only through CW tap).
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.. code:: shell
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md $OTPMKR0 0x10
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Command Output:
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01e80234: ffffffff ffffffff ffffffff ffffffff ................
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01e80244: ffffffff ffffffff ffffffff ffffffff ................
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Note: OTPMK will never be visible in plain.
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-- Check for the SRK Hash. For example, if following SRK hash is written:
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SFP SRKHR0 = fdc2fed4
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SFP SRKHR1 = 317f569e
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SFP SRKHR2 = 1828425c
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SFP SRKHR3 = e87b5cfd
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SFP SRKHR4 = 34beab8f
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SFP SRKHR5 = df792a70
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SFP SRKHR6 = 2dff85e1
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SFP SRKHR7 = 32a29687,
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then following would be the value on dumping SRK hash.
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.. code:: shell
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md $SRKHR0 0x10
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Command Output:
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01e80254: d4fec2fd 9e567f31 5c422818 fd5c7be8 ....1.V..(B\.{\.
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01e80264: 8fabbe34 702a79df e185ff2d 8796a232 4....y*p-...2...
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Note: SRK Hash is visible in plain based on the SFP Block Endianness.
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- Caution: Donot proceed to the next step, until you are sure that OTPMK and SRKH are correctly blown from above steps.
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-- After the next step, there is no turning back.
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-- Fuses will be burnt, which cannot be undo.
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- Write SFP_INGR[INST] with the PROGFB(0x2) instruction to blow the fuses.
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-- User need to save the SRK key pair and OTPMK Key forever, to continue using this board.
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+---+----------------------------------+-------------------------------------------+-----------+
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| | Platform | SFP_INGR_REG | SFP_WRITE_DATE_FRM_MIRROR_REG_TO_FUSE |
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+===+==================================+=======================================================+
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| 1.| lx2160ardb/lx2160aqds/lx2162aqds | 0x01E80020 | 0x2 |
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+---+----------------------------------+--------------+----------------------------------------+
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.. code:: shell
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md $SFP_INGR_REG $SFP_WRITE_DATE_FRM_MIRROR_REG_TO_FUSE
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- On reset, if the SFP register were read from u-boot, it will show the following:
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-- Check for the OTPMK.
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.. code:: shell
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md $SNVS_HPSR_REG
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Command Output:
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01e90014: 80000900
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In case it is read as 00000000, then read this register using jtag (in development mode only through CW tap).
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+0 +4 +8 +C
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[0x01E90014] 80000900
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Note: OTPMK_ZERO_BIT is zero, indicating that the OTPMK is blown.
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.. code:: shell
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md $OTPMKR0 0x10
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Command Output:
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01e80234: ffffffff ffffffff ffffffff ffffffff ................
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01e80244: ffffffff ffffffff ffffffff ffffffff ................
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Note: OTPMK will never be visible in plain.
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-- SRK Hash
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.. code:: shell
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md $SRKHR0 0x10
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Command Output:
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01e80254: d4fec2fd 9e567f31 5c422818 fd5c7be8 ....1.V..(B\.{\.
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01e80264: 8fabbe34 702a79df e185ff2d 8796a232 4....y*p-...2...
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Note: SRK Hash is visible in plain based on the SFP Block Endianness.
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Second method to do the fuse provsioning:
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=========================================
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This method is used for quick way to provision fuses.
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Typically used by those who needs to provision number of boards.
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- Enable POVDD:
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-- Refer the table above to enable POVDD.
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Note: If GPIO Pin supports enabling POVDD, it can be done through the below input_fuse_file.
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-- Once the POVDD is enabled, make sure to set variable POVDD_ENABLE := yes, in the platform.mk.
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- User need to populate the "input_fuse_file", corresponding to the platform for:
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-- OTPMK
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-- SRKH
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Table of fuse provisioning input file for every supported platform:
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+---+----------------------------------+-----------------------------------------------------------------+
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| | Platform | FUSE_PROV_FILE |
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+===+==================================+=================================================================+
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| 1.| lx2160ardb/lx2160aqds/lx2162aqds | ${CST_DIR}/input_files/gen_fusescr/ls2088_1088/input_fuse_file |
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+---+----------------------------------+--------------+--------------------------------------------------+
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- Create the TF-A binary with FUSE_PROG=1.
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.. code:: shell
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make PLAT=$PLAT FUSE_PROG=1\
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BOOT_MODE=<platform_supported_boot_mode> \
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RCW=$RCW_BIN \
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BL32=$TEE_BIN SPD=opteed\
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BL33=$UBOOT_SECURE_BIN \
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pbl \
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fip \
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fip_fuse \
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FUSE_PROV_FILE=../../apps/security/cst/input_files/gen_fusescr/ls2088_1088/input_fuse_file
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- Deployment:
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-- Refer the nxp-layerscape.rst for deploying TF-A images.
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-- Deploying fip_fuse.bin:
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For Flexspi-Nor:
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.. code:: shell
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tftp 82000000 $path/fuse_fip.bin;
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i2c mw 66 50 20;sf probe 0:0; sf erase 0x880000 +$filesize; sf write 0x82000000 0x880000 $filesize;
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For SD or eMMC [file_size_in_block_sizeof_512 = (Size_of_bytes_tftp / 512)]:
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.. code:: shell
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tftp 82000000 $path/fuse_fip.bin;
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mmc write 82000000 0x4408 <file_size_in_block_sizeof_512>;
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- Valiation:
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+---+----------------------------------+---------------------------------------------------+
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| | Platform | Error_Register | Error_Register_Address |
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+===+==================================+===================================================+
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| 1.| lx2160ardb/lx2160aqds/lx2162aqds | DCFG scratch 4 register | 0x01EE020C |
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+---+----------------------------------+---------------------------------------------------+
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At the U-Boot prompt, check DCFG scratch 4 register for any error.
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.. code:: shell
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md $Error_Register_Address 1
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Command Ouput:
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01ee020c: 00000000
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Note:
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- 0x00000000 shows no error, then fuse provisioning is successful.
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- For non-zero value, refer the code header file ".../drivers/nxp/sfp/sfp_error_codes.h"
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