earlgrey: Add SPI Device driver and SFDP support - #411
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- Implements the SpiDev driver using ureg RegisterBlock representation. - Provides configure_cmd_info for hardware opcode intercept slots (SFDP, JEDEC ID, Read, Program, Erase). - Configures intercept_en, jedec_cc, jedec_id, addr_mode, and SRAM egress buffer. - Provides set_sfdp, write_to_mbx, poll, retire_cmd, and read_addr_swap. - Adds single-process driver smoke test validating register and SRAM egress state. Signed-off-by: Anthony Chen <antchen@google.com>
…ation - Adds create_default_sfdp_table in util/sfdp generating standard JESD216 compliant SFDP headers and basic flash parameters table. - Re-exports SFDP generation in earlgrey_spi_device driver. - Adds unit test validating default SFDP table parsing with SfdpReader. Signed-off-by: Anthony Chen <antchen@google.com>
- Implements the spidev process in HWE firmware. - Configures SpiDev in Flash mode with Google JEDEC ID and standard JESD216 SFDP table in SRAM egress buffer. - Hooks up spidev process and logger_spidev IPC channel in system.json5 and logmgr.rs. - Adds spidev process to multi_process_app in BUILD.bazel. Signed-off-by: Anthony Chen <antchen@google.com>
- Adds host_spidev_check host harness using opentitanlib to query the
SPI device over the SPI interface (BOOTSTRAP):
- Validates Opcode 0x9F (Read JEDEC ID) returning 8x continuation
codes 0x7F, Google Manf ID 0x26, and Device ID 0x1731.
- Validates Opcode 0x5A (Read SFDP) returning JESD216 signature 'SFDP'
and basic flash parameter tables.
- Adds spidev_hyper340_test executing on CW340 targeting hwe_firmware.
Signed-off-by: Anthony Chen <antchen@google.com>
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This PR adds the OpenTitan SPI Device (
spi_device) driver into OpenPRoT, adds JESD216 SFDP table generation support, integrates thespidevservice process into the Earlgrey HWE firmware, and adds an end-to-end (E2E) integration test on FPGA usingopentitanlib.