This patch introduces a dedicated ca35_boot_rom memory region and copies the FMC0 flash data into it.
The motivation is to support the upcoming vbootrom. The vbootrom replaces the existing BOOTMCU (RISC-V 32 SPL) flow, which currently reads the "image-bmc" from FMC_CS0 and loads the following components into DRAM: - Trusted Firmware-A - OP-TEE OS - u-boot-nodtb.bin - u-boot.dtb After loading, BOOTMCU releases the CA35 reset so that CA35 can start executing Trusted Firmware-A. The vbootrom follows the same sequence: CA35 fetches "image-bmc" from FMC0 flash at the SPI boot ROM base address (0x100000000), parses the FIT image, loads each component into its designated DRAM location, and then jumps to Trusted Firmware-A. Signed-off-by: Jamin Lin <[email protected]> Reviewed-by: Cédric Le Goater <[email protected]> --- hw/arm/aspeed_ast27x0-fc.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/hw/arm/aspeed_ast27x0-fc.c b/hw/arm/aspeed_ast27x0-fc.c index 99af87dbd7..99c0b34159 100644 --- a/hw/arm/aspeed_ast27x0-fc.c +++ b/hw/arm/aspeed_ast27x0-fc.c @@ -35,6 +35,7 @@ struct Ast2700FCState { MemoryRegion ca35_memory; MemoryRegion ca35_dram; + MemoryRegion ca35_boot_rom; MemoryRegion ssp_memory; MemoryRegion tsp_memory; @@ -44,8 +45,6 @@ struct Ast2700FCState { Aspeed27x0SoCState ca35; Aspeed27x0CoprocessorState ssp; Aspeed27x0CoprocessorState tsp; - - bool mmio_exec; }; #define AST2700FC_BMC_RAM_SIZE (1 * GiB) @@ -61,6 +60,9 @@ static bool ast2700fc_ca35_init(MachineState *machine, Error **errp) Ast2700FCState *s = AST2700A1FC(machine); AspeedSoCState *soc; AspeedSoCClass *sc; + BlockBackend *fmc0 = NULL; + DeviceState *dev = NULL; + uint64_t rom_size; object_initialize_child(OBJECT(s), "ca35", &s->ca35, "ast2700-a1"); soc = ASPEED_SOC(&s->ca35); @@ -112,6 +114,14 @@ static bool ast2700fc_ca35_init(MachineState *machine, Error **errp) ast2700fc_board_info.ram_size = machine->ram_size; ast2700fc_board_info.loader_start = sc->memmap[ASPEED_DEV_SDRAM]; + dev = ssi_get_cs(soc->fmc.spi, 0); + fmc0 = dev ? m25p80_get_blk(dev) : NULL; + + if (fmc0) { + rom_size = memory_region_size(&soc->spi_boot); + aspeed_install_boot_rom(soc, fmc0, &s->ca35_boot_rom, rom_size); + } + arm_load_kernel(ARM_CPU(first_cpu), machine, &ast2700fc_board_info); return true; -- 2.43.0
