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-rw-r--r--arch/x86/lib/fsp2/Makefile10
-rw-r--r--arch/x86/lib/fsp2/fsp_common.c13
-rw-r--r--arch/x86/lib/fsp2/fsp_dram.c78
-rw-r--r--arch/x86/lib/fsp2/fsp_init.c191
-rw-r--r--arch/x86/lib/fsp2/fsp_meminit.c97
-rw-r--r--arch/x86/lib/fsp2/fsp_silicon_init.c54
-rw-r--r--arch/x86/lib/fsp2/fsp_support.c131
7 files changed, 574 insertions, 0 deletions
diff --git a/arch/x86/lib/fsp2/Makefile b/arch/x86/lib/fsp2/Makefile
new file mode 100644
index 0000000000..ddbe2d0db2
--- /dev/null
+++ b/arch/x86/lib/fsp2/Makefile
@@ -0,0 +1,10 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Copyright 2019 Google LLC
+
+obj-y += fsp_common.o
+obj-y += fsp_dram.o
+obj-y += fsp_init.o
+obj-y += fsp_meminit.o
+obj-y += fsp_silicon_init.o
+obj-y += fsp_support.o
diff --git a/arch/x86/lib/fsp2/fsp_common.c b/arch/x86/lib/fsp2/fsp_common.c
new file mode 100644
index 0000000000..f69456e43a
--- /dev/null
+++ b/arch/x86/lib/fsp2/fsp_common.c
@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2019 Google LLC
+ * Written by Simon Glass <sjg@chromium.org>
+ */
+
+#include <common.h>
+#include <init.h>
+
+int arch_fsp_init(void)
+{
+ return 0;
+}
diff --git a/arch/x86/lib/fsp2/fsp_dram.c b/arch/x86/lib/fsp2/fsp_dram.c
new file mode 100644
index 0000000000..90a238a224
--- /dev/null
+++ b/arch/x86/lib/fsp2/fsp_dram.c
@@ -0,0 +1,78 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2019 Google LLC
+ * Written by Simon Glass <sjg@chromium.org>
+ */
+
+#include <common.h>
+#include <acpi_s3.h>
+#include <handoff.h>
+#include <spl.h>
+#include <asm/arch/cpu.h>
+#include <asm/fsp/fsp_support.h>
+#include <asm/fsp2/fsp_api.h>
+#include <asm/fsp2/fsp_internal.h>
+
+int dram_init(void)
+{
+ int ret;
+
+ if (spl_phase() == PHASE_SPL) {
+#ifdef CONFIG_HAVE_ACPI_RESUME
+ bool s3wake = gd->arch.prev_sleep_state == ACPI_S3;
+#else
+ bool s3wake = false;
+#endif
+
+ ret = fsp_memory_init(s3wake,
+ IS_ENABLED(CONFIG_APL_BOOT_FROM_FAST_SPI_FLASH));
+ if (ret) {
+ debug("Memory init failed (err=%x)\n", ret);
+ return ret;
+ }
+
+ /* The FSP has already set up DRAM, so grab the info we need */
+ ret = fsp_scan_for_ram_size();
+ if (ret)
+ return ret;
+
+#ifdef CONFIG_ENABLE_MRC_CACHE
+ gd->arch.mrc[MRC_TYPE_NORMAL].buf =
+ fsp_get_nvs_data(gd->arch.hob_list,
+ &gd->arch.mrc[MRC_TYPE_NORMAL].len);
+ gd->arch.mrc[MRC_TYPE_VAR].buf =
+ fsp_get_var_nvs_data(gd->arch.hob_list,
+ &gd->arch.mrc[MRC_TYPE_VAR].len);
+ log_debug("normal %x, var %x\n",
+ gd->arch.mrc[MRC_TYPE_NORMAL].len,
+ gd->arch.mrc[MRC_TYPE_VAR].len);
+#endif
+ } else {
+#if CONFIG_IS_ENABLED(HANDOFF)
+ struct spl_handoff *ho = gd->spl_handoff;
+
+ if (!ho) {
+ debug("No SPL handoff found\n");
+ return -ESTRPIPE;
+ }
+ gd->ram_size = ho->ram_size;
+ handoff_load_dram_banks(ho);
+#endif
+ ret = arch_fsps_preinit();
+ if (ret)
+ return log_msg_ret("fsp_s_preinit", ret);
+ }
+
+ return 0;
+}
+
+ulong board_get_usable_ram_top(ulong total_size)
+{
+#if CONFIG_IS_ENABLED(HANDOFF)
+ struct spl_handoff *ho = gd->spl_handoff;
+
+ return ho->arch.usable_ram_top;
+#endif
+
+ return gd->ram_top;
+}
diff --git a/arch/x86/lib/fsp2/fsp_init.c b/arch/x86/lib/fsp2/fsp_init.c
new file mode 100644
index 0000000000..da9bd6b45c
--- /dev/null
+++ b/arch/x86/lib/fsp2/fsp_init.c
@@ -0,0 +1,191 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2019 Google LLC
+ */
+
+#include <common.h>
+#include <binman.h>
+#include <binman_sym.h>
+#include <cbfs.h>
+#include <dm.h>
+#include <init.h>
+#include <spi.h>
+#include <spl.h>
+#include <spi_flash.h>
+#include <asm/intel_pinctrl.h>
+#include <dm/uclass-internal.h>
+#include <asm/fsp2/fsp_internal.h>
+
+int arch_cpu_init_dm(void)
+{
+ struct udevice *dev;
+ ofnode node;
+ int ret;
+
+ /* Make sure pads are set up early in U-Boot */
+ if (spl_phase() != PHASE_BOARD_F)
+ return 0;
+
+ /* Probe all pinctrl devices to set up the pads */
+ ret = uclass_first_device_err(UCLASS_PINCTRL, &dev);
+ if (ret)
+ return log_msg_ret("no fsp pinctrl", ret);
+ node = ofnode_path("fsp");
+ if (!ofnode_valid(node))
+ return log_msg_ret("no fsp params", -EINVAL);
+ ret = pinctrl_config_pads_for_node(dev, node);
+ if (ret)
+ return log_msg_ret("pad config", ret);
+
+ return ret;
+}
+
+#if !defined(CONFIG_TPL_BUILD)
+binman_sym_declare(ulong, intel_fsp_m, image_pos);
+binman_sym_declare(ulong, intel_fsp_m, size);
+
+/**
+ * get_cbfs_fsp() - Obtain the FSP by looking up in CBFS
+ *
+ * This looks up an FSP in a CBFS. It is used mostly for testing, when booting
+ * U-Boot from a hybrid image containing coreboot as the first-stage bootloader.
+ *
+ * The typical use for this feature is when building a Chrome OS image which
+ * includes coreboot in it. By adding U-Boot into the 'COREBOOT' CBFS as well,
+ * it is possible to make coreboot chain-load U-Boot. Thus the initial stages of
+ * the SoC init can be done by coreboot and the later stages by U-Boot. This is
+ * a convenient way to start the porting work. The jump to U-Boot can then be
+ * moved progressively earlier and earlier, until U-Boot takes over all the init
+ * and you have a native port.
+ *
+ * This function looks up a CBFS at a known location and reads the FSP-M from it
+ * so that U-Boot can init the memory.
+ *
+ * This function is not used in the normal boot but is kept here for future
+ * development.
+ *
+ * @type; Type to look up (only FSP_M supported at present)
+ * @map_base: Base memory address for mapped SPI
+ * @entry: Returns an entry containing the position of the FSP image
+ */
+static int get_cbfs_fsp(enum fsp_type_t type, ulong map_base,
+ struct binman_entry *entry)
+{
+ /*
+ * Use a hard-coded position of CBFS in the ROM for now. It would be
+ * possible to read the position using the FMAP in the ROM, but since
+ * this code is only used for development, it doesn't seem worth it.
+ * Use the 'cbfstool <image> layout' command to get these values, e.g.:
+ * 'COREBOOT' (CBFS, size 1814528, offset 2117632).
+ */
+ ulong cbfs_base = 0x205000;
+ ulong cbfs_size = 0x1bb000;
+ struct cbfs_priv *cbfs;
+ int ret;
+
+ ret = cbfs_init_mem(map_base + cbfs_base, cbfs_size, &cbfs);
+ if (ret)
+ return ret;
+ if (!ret) {
+ const struct cbfs_cachenode *node;
+
+ node = cbfs_find_file(cbfs, "fspm.bin");
+ if (!node)
+ return log_msg_ret("fspm node", -ENOENT);
+
+ entry->image_pos = (ulong)node->data;
+ entry->size = node->data_length;
+ }
+
+ return 0;
+}
+
+int fsp_locate_fsp(enum fsp_type_t type, struct binman_entry *entry,
+ bool use_spi_flash, struct udevice **devp,
+ struct fsp_header **hdrp, ulong *rom_offsetp)
+{
+ ulong mask = CONFIG_ROM_SIZE - 1;
+ struct udevice *dev;
+ ulong rom_offset = 0;
+ uint map_size;
+ ulong map_base;
+ uint offset;
+ int ret;
+
+ /*
+ * Find the devices but don't probe them, since we don't want to
+ * auto-config PCI before silicon init runs
+ */
+ ret = uclass_find_first_device(UCLASS_NORTHBRIDGE, &dev);
+ if (ret)
+ return log_msg_ret("Cannot get northbridge", ret);
+ if (!use_spi_flash) {
+ struct udevice *sf;
+
+ /* Just use the SPI driver to get the memory map */
+ ret = uclass_find_first_device(UCLASS_SPI_FLASH, &sf);
+ if (ret)
+ return log_msg_ret("Cannot get SPI flash", ret);
+ ret = dm_spi_get_mmap(sf, &map_base, &map_size, &offset);
+ if (ret)
+ return log_msg_ret("Could not get flash mmap", ret);
+ }
+
+ if (spl_phase() >= PHASE_BOARD_F) {
+ if (type != FSP_S)
+ return -EPROTONOSUPPORT;
+ ret = binman_entry_find("intel-fsp-s", entry);
+ if (ret)
+ return log_msg_ret("binman entry", ret);
+ if (!use_spi_flash)
+ rom_offset = (map_base & mask) - CONFIG_ROM_SIZE;
+ } else {
+ ret = -ENOENT;
+ if (false)
+ /*
+ * Support using a hybrid image build by coreboot. See
+ * the function comments for details
+ */
+ ret = get_cbfs_fsp(type, map_base, entry);
+ if (ret) {
+ ulong mask = CONFIG_ROM_SIZE - 1;
+
+ if (type != FSP_M)
+ return -EPROTONOSUPPORT;
+ entry->image_pos = binman_sym(ulong, intel_fsp_m,
+ image_pos);
+ entry->size = binman_sym(ulong, intel_fsp_m, size);
+ if (entry->image_pos != BINMAN_SYM_MISSING) {
+ ret = 0;
+ if (use_spi_flash)
+ entry->image_pos &= mask;
+ else
+ entry->image_pos += (map_base & mask);
+ } else {
+ ret = -ENOENT;
+ }
+ }
+ }
+ if (ret)
+ return log_msg_ret("Cannot find FSP", ret);
+ entry->image_pos += rom_offset;
+
+ /*
+ * Account for the time taken to read memory-mapped SPI flash since in
+ * this case we don't use the SPI driver and BOOTSTAGE_ID_ACCUM_SPI.
+ */
+ if (!use_spi_flash)
+ bootstage_start(BOOTSTAGE_ID_ACCUM_MMAP_SPI, "mmap_spi");
+ ret = fsp_get_header(entry->image_pos, entry->size, use_spi_flash,
+ hdrp);
+ if (!use_spi_flash)
+ bootstage_accum(BOOTSTAGE_ID_ACCUM_MMAP_SPI);
+ if (ret)
+ return log_msg_ret("fsp_get_header", ret);
+ *devp = dev;
+ if (rom_offsetp)
+ *rom_offsetp = rom_offset;
+
+ return 0;
+}
+#endif
diff --git a/arch/x86/lib/fsp2/fsp_meminit.c b/arch/x86/lib/fsp2/fsp_meminit.c
new file mode 100644
index 0000000000..bf30c47989
--- /dev/null
+++ b/arch/x86/lib/fsp2/fsp_meminit.c
@@ -0,0 +1,97 @@
+// SPDX-License-Identifier: Intel
+/*
+ * Copyright (C) 2015-2016 Intel Corp.
+ * (Written by Andrey Petrov <andrey.petrov@intel.com> for Intel Corp.)
+ * (Written by Alexandru Gagniuc <alexandrux.gagniuc@intel.com> for Intel Corp.)
+ * Mostly taken from coreboot fsp2_0/memory_init.c
+ */
+
+#include <common.h>
+#include <binman.h>
+#include <asm/mrccache.h>
+#include <asm/fsp/fsp_infoheader.h>
+#include <asm/fsp2/fsp_api.h>
+#include <asm/fsp2/fsp_internal.h>
+#include <asm/arch/fsp/fsp_configs.h>
+#include <asm/arch/fsp/fsp_m_upd.h>
+
+static int prepare_mrc_cache_type(enum mrc_type_t type,
+ struct mrc_data_container **cachep)
+{
+ struct mrc_data_container *cache;
+ struct mrc_region entry;
+ int ret;
+
+ ret = mrccache_get_region(type, NULL, &entry);
+ if (ret)
+ return ret;
+ cache = mrccache_find_current(&entry);
+ if (!cache)
+ return -ENOENT;
+
+ log_debug("MRC at %x, size %x\n", (uint)cache->data, cache->data_size);
+ *cachep = cache;
+
+ return 0;
+}
+
+int prepare_mrc_cache(struct fspm_upd *upd)
+{
+ struct mrc_data_container *cache;
+ int ret;
+
+ ret = prepare_mrc_cache_type(MRC_TYPE_NORMAL, &cache);
+ if (ret)
+ return log_msg_ret("Cannot get normal cache", ret);
+ upd->arch.nvs_buffer_ptr = cache->data;
+
+ ret = prepare_mrc_cache_type(MRC_TYPE_VAR, &cache);
+ if (ret)
+ return log_msg_ret("Cannot get var cache", ret);
+ upd->config.variable_nvs_buffer_ptr = cache->data;
+
+ return 0;
+}
+
+int fsp_memory_init(bool s3wake, bool use_spi_flash)
+{
+ struct fspm_upd upd, *fsp_upd;
+ fsp_memory_init_func func;
+ struct binman_entry entry;
+ struct fsp_header *hdr;
+ struct hob_header *hob;
+ struct udevice *dev;
+ int ret;
+
+ ret = fsp_locate_fsp(FSP_M, &entry, use_spi_flash, &dev, &hdr, NULL);
+ if (ret)
+ return log_msg_ret("locate FSP", ret);
+ debug("Found FSP_M at %x, size %x\n", hdr->img_base, hdr->img_size);
+
+ /* Copy over the default config */
+ fsp_upd = (struct fspm_upd *)(hdr->img_base + hdr->cfg_region_off);
+ if (fsp_upd->header.signature != FSPM_UPD_SIGNATURE)
+ return log_msg_ret("Bad UPD signature", -EPERM);
+ memcpy(&upd, fsp_upd, sizeof(upd));
+
+ ret = fspm_update_config(dev, &upd);
+ if (ret)
+ return log_msg_ret("Could not setup config", ret);
+
+ debug("SDRAM init...");
+ bootstage_start(BOOTSTATE_ID_ACCUM_FSP_M, "fsp-m");
+ func = (fsp_memory_init_func)(hdr->img_base + hdr->fsp_mem_init);
+ ret = func(&upd, &hob);
+ bootstage_accum(BOOTSTATE_ID_ACCUM_FSP_M);
+ if (ret)
+ return log_msg_ret("SDRAM init fail\n", ret);
+
+ gd->arch.hob_list = hob;
+ debug("done\n");
+
+ ret = fspm_done(dev);
+ if (ret)
+ return log_msg_ret("fsm_done\n", ret);
+
+ return 0;
+}
diff --git a/arch/x86/lib/fsp2/fsp_silicon_init.c b/arch/x86/lib/fsp2/fsp_silicon_init.c
new file mode 100644
index 0000000000..d7ce43e1eb
--- /dev/null
+++ b/arch/x86/lib/fsp2/fsp_silicon_init.c
@@ -0,0 +1,54 @@
+// SPDX-License-Identifier: Intel
+/*
+ * Copyright (C) 2015-2016 Intel Corp.
+ * (Written by Andrey Petrov <andrey.petrov@intel.com> for Intel Corp.)
+ *
+ * Mostly taken from coreboot fsp2_0/silicon_init.c
+ */
+
+#define LOG_CATEGORY UCLASS_NORTHBRIDGE
+
+#include <common.h>
+#include <binman.h>
+#include <dm.h>
+#include <asm/arch/fsp/fsp_configs.h>
+#include <asm/arch/fsp/fsp_s_upd.h>
+#include <asm/fsp/fsp_infoheader.h>
+#include <asm/fsp2/fsp_internal.h>
+
+int fsp_silicon_init(bool s3wake, bool use_spi_flash)
+{
+ struct fsps_upd upd, *fsp_upd;
+ fsp_silicon_init_func func;
+ struct fsp_header *hdr;
+ struct binman_entry entry;
+ struct udevice *dev;
+ ulong rom_offset = 0;
+ int ret;
+
+ ret = fsp_locate_fsp(FSP_S, &entry, use_spi_flash, &dev, &hdr,
+ &rom_offset);
+ if (ret)
+ return log_msg_ret("locate FSP", ret);
+ gd->arch.fsp_s_hdr = hdr;
+
+ /* Copy over the default config */
+ fsp_upd = (struct fsps_upd *)(hdr->img_base + hdr->cfg_region_off);
+ if (fsp_upd->header.signature != FSPS_UPD_SIGNATURE)
+ return log_msg_ret("Bad UPD signature", -EPERM);
+ memcpy(&upd, fsp_upd, sizeof(upd));
+
+ ret = fsps_update_config(dev, rom_offset, &upd);
+ if (ret)
+ return log_msg_ret("Could not setup config", ret);
+ log_debug("Silicon init...");
+ bootstage_start(BOOTSTATE_ID_ACCUM_FSP_S, "fsp-s");
+ func = (fsp_silicon_init_func)(hdr->img_base + hdr->fsp_silicon_init);
+ ret = func(&upd);
+ bootstage_accum(BOOTSTATE_ID_ACCUM_FSP_S);
+ if (ret)
+ return log_msg_ret("Silicon init fail\n", ret);
+ log_debug("done\n");
+
+ return 0;
+}
diff --git a/arch/x86/lib/fsp2/fsp_support.c b/arch/x86/lib/fsp2/fsp_support.c
new file mode 100644
index 0000000000..0a04b443f7
--- /dev/null
+++ b/arch/x86/lib/fsp2/fsp_support.c
@@ -0,0 +1,131 @@
+// SPDX-License-Identifier: Intel
+/*
+ * Copyright 2019 Google LLC
+ * Written by Simon Glass <sjg@chromium.org>
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <spi_flash.h>
+#include <asm/fsp/fsp_support.h>
+#include <asm/fsp2/fsp_internal.h>
+
+/* The amount of the FSP header to probe to obtain what we need */
+#define PROBE_BUF_SIZE 0x180
+
+int fsp_get_header(ulong offset, ulong size, bool use_spi_flash,
+ struct fsp_header **fspp)
+{
+ static efi_guid_t guid = FSP_HEADER_GUID;
+ struct fv_ext_header *exhdr;
+ struct fsp_header *fsp;
+ struct ffs_file_header *file_hdr;
+ struct fv_header *fv;
+ struct raw_section *raw;
+ void *ptr, *base;
+ u8 buf[PROBE_BUF_SIZE];
+ struct udevice *dev;
+ int ret;
+
+ /*
+ * There are quite a very steps to work through all the headers in this
+ * file and the structs have similar names. Turn on debugging if needed
+ * to understand what is going wrong.
+ *
+ * You are in a maze of twisty little headers all alike.
+ */
+ debug("offset=%x buf=%x\n", (uint)offset, (uint)buf);
+ if (use_spi_flash) {
+ ret = uclass_first_device_err(UCLASS_SPI_FLASH, &dev);
+ if (ret)
+ return log_msg_ret("Cannot find flash device", ret);
+ ret = spi_flash_read_dm(dev, offset, PROBE_BUF_SIZE, buf);
+ if (ret)
+ return log_msg_ret("Cannot read flash", ret);
+ } else {
+ memcpy(buf, (void *)offset, PROBE_BUF_SIZE);
+ }
+
+ /* Initalise the FSP base */
+ ptr = buf;
+ fv = ptr;
+
+ /* Check the FV signature, _FVH */
+ debug("offset=%x sign=%x\n", (uint)offset, (uint)fv->sign);
+ if (fv->sign != EFI_FVH_SIGNATURE)
+ return log_msg_ret("Base FV signature", -EINVAL);
+
+ /* Go to the end of the FV header and align the address */
+ debug("fv->ext_hdr_off = %x\n", fv->ext_hdr_off);
+ ptr += fv->ext_hdr_off;
+ exhdr = ptr;
+ ptr += ALIGN(exhdr->ext_hdr_size, 8);
+ debug("ptr=%x\n", ptr - (void *)buf);
+
+ /* Check the FFS GUID */
+ file_hdr = ptr;
+ if (memcmp(&file_hdr->name, &guid, sizeof(guid)))
+ return log_msg_ret("Base FFS GUID", -ENXIO);
+ /* Add the FFS header size to find the raw section header */
+ ptr = file_hdr + 1;
+
+ raw = ptr;
+ debug("raw->type = %x\n", raw->type);
+ if (raw->type != EFI_SECTION_RAW)
+ return log_msg_ret("Section type not RAW", -ENOEXEC);
+
+ /* Add the raw section header size to find the FSP header */
+ ptr = raw + 1;
+ fsp = ptr;
+
+ /* Check the FSPH header */
+ debug("fsp %x\n", (uint)fsp);
+ if (fsp->sign != EFI_FSPH_SIGNATURE)
+ return log_msg_ret("Base FSPH signature", -EACCES);
+
+ base = (void *)fsp->img_base;
+ debug("Image base %x\n", (uint)base);
+ debug("Image addr %x\n", (uint)fsp->fsp_mem_init);
+ if (use_spi_flash) {
+ ret = spi_flash_read_dm(dev, offset, size, base);
+ if (ret)
+ return log_msg_ret("Could not read FPS-M", ret);
+ } else {
+ memcpy(base, (void *)offset, size);
+ }
+ ptr = base + (ptr - (void *)buf);
+ *fspp = ptr;
+
+ return 0;
+}
+
+u32 fsp_notify(struct fsp_header *fsp_hdr, u32 phase)
+{
+ fsp_notify_f notify;
+ struct fsp_notify_params params;
+ struct fsp_notify_params *params_ptr;
+ u32 status;
+
+ if (!fsp_hdr)
+ fsp_hdr = gd->arch.fsp_s_hdr;
+
+ if (!fsp_hdr)
+ return log_msg_ret("no FSP", -ENOENT);
+
+ notify = (fsp_notify_f)(fsp_hdr->img_base + fsp_hdr->fsp_notify);
+ params.phase = phase;
+ params_ptr = &params;
+
+ /*
+ * Use ASM code to ensure correct parameter is on the stack for
+ * FspNotify as U-Boot is using different ABI from FSP
+ */
+ asm volatile (
+ "pushl %1;" /* push notify phase */
+ "call *%%eax;" /* call FspNotify */
+ "addl $4, %%esp;" /* clean up the stack */
+ : "=a"(status) : "m"(params_ptr), "a"(notify), "m"(*params_ptr)
+ );
+
+ return status;
+}
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