Andrey Petrov (andrey.petrov@intel.com) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/13799
-gerrit
commit 5e32e293a75ee6d31c9761c66647c7e8e9294555 Author: Andrey Petrov andrey.petrov@intel.com Date: Thu Feb 25 14:17:45 2016 -0800
drivers/intel/fsp2_0: Add SiliconInit API
This adds SiliconInit API that is needed to be called after memory has been trained. This call is needed to let the blob do various initialisations of IP blocks.
Change-Id: I35e02f22174c8392e55ac869265a19c4309932e5 Signed-off-by: Andrey Petrov andrey.petrov@intel.com --- src/drivers/intel/fsp2_0/silicon_init.c | 59 +++++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+)
diff --git a/src/drivers/intel/fsp2_0/silicon_init.c b/src/drivers/intel/fsp2_0/silicon_init.c new file mode 100644 index 0000000..b9c16b0 --- /dev/null +++ b/src/drivers/intel/fsp2_0/silicon_init.c @@ -0,0 +1,59 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2015 Intel Corp. + * (Written by Andrey Petrov andrey.petrov@intel.com for Intel Corp.) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include <arch/cpu.h> +#include <cbfs.h> +#include <console/console.h> +#include <fsp/api.h> +#include <fsp/util.h> +#include <string.h> + +struct fsp_header fsps_hdr; + +typedef asmlinkage enum fsp_status (*fsp_silicon_init_fn) + (void *silicon_upd); + +static enum fsp_status do_silicon_init(struct fsp_header *hdr) +{ + struct FSPS_UPD upd, *supd; + fsp_silicon_init_fn silicon_init; + enum fsp_status status; + + /* Our header we are compiled with is out of sync with the blob */ + if (hdr->cfg_region_size > sizeof(upd)) { + printk(BIOS_ERR, "FSPS UPD is bigger than the header.\n"); + return FSP_OUT_OF_RESOURCES; + } + + supd = (struct FSPS_UPD *) (hdr->cfg_region_offset + hdr->image_base); + memcpy(&upd, supd, sizeof(upd)); + + /* Give SoC/mainboard a chance to populate entries */ + platform_fsp_silicon_init_params_cb(&upd); + + silicon_init = (void *) (hdr->image_base + + hdr->silicon_init_entry_offset); + + status = silicon_init(&upd); + printk(BIOS_DEBUG, "FspSiliconInit returned 0x%08x\n", status); + return status; +} + +enum fsp_status fsp_silicon_init(struct range_entry *range) +{ + /* Load FSP-S and save FSP header. We will need it for Notify */ + /* TODO: do not hardcode CBFS file names */ + if (fsp_load_binary(&fsps_hdr, "blobs/fsps.bin", range) != CB_SUCCESS) + return FSP_NOT_FOUND; + + return do_silicon_init(&fsps_hdr); +}