Leroy P Leahy (leroy.p.leahy@intel.com) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/13442
-gerrit
commit 3c1e9ef341b22326de94b9d57d608ca43bc7f53b Author: Lee Leahy leroy.p.leahy@intel.com Date: Mon Jan 25 11:10:41 2016 -0800
x86 Docs: Add the FSP Binary
Document how to add the FSP binary to the SPI flash image.
BRANCH=none BUG=None TEST=None
Change-Id: I51b16600ea69853240282ac2eb0d84935b8e2a71 Signed-off-by: Lee Leahy leroy.p.leahy@intel.com --- Documentation/x86Development.html | 1 + Documentation/x86FSP1_1.html | 13 +++++++ Documentation/x86SoC.html | 71 +++++++++++++++++++++++++++++++++++++++ 3 files changed, 85 insertions(+)
diff --git a/Documentation/x86Development.html b/Documentation/x86Development.html index 8cd697f..852e1f3 100644 --- a/Documentation/x86Development.html +++ b/Documentation/x86Development.html @@ -44,6 +44,7 @@ <li>Get result to start <a target="_blank" href="x86SoC.html#Descriptor">booting</a></li> <li><a target="_blank" href="x86SoC.html#EarlyDebug">Early Debug</a></li> <li>Implement and debug the <a target="_blank" href="x86SoC.html#Bootblock">bootblock</a> code</li> + <li>Implement and debug the call to <a target="_blank" href="x86SoC.html#TempRamInit">TempRamInit</a></li> </ol>
diff --git a/Documentation/x86FSP1_1.html b/Documentation/x86FSP1_1.html index 52ff374..7a200b0 100644 --- a/Documentation/x86FSP1_1.html +++ b/Documentation/x86FSP1_1.html @@ -14,6 +14,7 @@ </p> <ol> <li><a href="#RequiredFiles">Required Files</a></li> + <li>Add the <a href="#FspBinary">FSP Binary File</a> to the Coreboot File System</li> </ol>
@@ -39,6 +40,18 @@
<hr> +<h1><a name="FspBinary">Add the FSP Binary File to Coreboot File System</a></h1> +<p> + Add the FSP binary to the coreboot flash image using the following command: +</p> +<pre><code>util/cbfstool/cbfstool build/coreboot.rom add -t fsp -n fsp.bin -b <base address> -f fsp.bin</code></pre> +<p> + This command relocates the FSP binary to the 4K byte aligned location in CBFS so that the + FSP code for TempRamInit may be executed in place. +</p> + + +<hr> <p>Modified: 25 January 2016</p> </body> </html> \ No newline at end of file diff --git a/Documentation/x86SoC.html b/Documentation/x86SoC.html index 5eab50d..ebd1ca7 100644 --- a/Documentation/x86SoC.html +++ b/Documentation/x86SoC.html @@ -18,6 +18,7 @@ <li><a href="#Descriptor">Start Booting</a></li> <li><a href="#EarlyDebug">Early Debug</a></li> <li><a href="#BootBlock">Bootblock</a></li> + <li><a href="#TempRamInit">TempRamInit</a></li> </ol>
@@ -181,6 +182,76 @@ mv build/coreboot.rom.new build/coreboot.rom
<hr> +<h1><a name="TempRamInit">TempRamInit</a></h1> +<p> + Enable the call to TempRamInit using the following steps: +</p> +<ol> + <li>Edit the src/soc/<Vendor>/<Chip Family>/Kconfig file + <ol type="A"> + <li>Add "select USE_GENERIC_FSP_CAR_INC" to enable the use of + <a target="_blank" href="https://chromium.googlesource.com/chromiumos/third_party/coreboot/+/chromeos-2015.07/src/drivers/intel/fsp1_1/cache_as_ram.inc">src/drivers/intel/fsp1_1/cache_as_ram.inc</a> + </li> + <li>Add "select SOC_INTEL_COMMON" to enable the use of the files from + <a target="_blank" href="https://chromium.googlesource.com/chromiumos/third_party/coreboot/+/chromeos-2015.07/src/soc/intel/common">src/soc/intel/common</a> + specifically building util.c + </li> + </ol> + </li> + <li>Debug the result until port 0x80 outputs + <ol type="A"> + <li>0x90: <a target="_blank" href="https://chromium.googlesource.com/chromiumos/third_party/coreboot/+/chromeos-2015.07/src/include/console/post_codes.h#209">POST_FSP_TEMP_RAM_INIT</a> + - Just before calling + <a target="_blank" href="https://chromium.googlesource.com/chromiumos/third_party/coreboot/+/chromeos-2015.07/src/drivers/intel/fsp1_1/cache_as_ram.inc#90">TempRamInit</a> + </li> + <li>Alternating 0xba and 0x01 - The FSP image was not found</li> + </ol> + </li> + <li>Add the <a target="_blank" href="x86FSP1_1.html#FspBinary">FSP binary file</a> to the flash image</li> + <li>Set the following Kconfig values: + <ul> + <li>CONFIG_FSP_LOC to the FSP base address specified in the previous step</li> + <li>CONFIG_FSP_IMAGE_ID_STRING</li> + </ul> + </li> + <li>Debug the result until port 0x80 outputs + <ol type="A"> + <li>0x90: <a target="_blank" href="https://chromium.googlesource.com/chromiumos/third_party/coreboot/+/chromeos-2015.07/src/include/console/post_codes.h#209">POST_FSP_TEMP_RAM_INIT</a> + - Just before calling + <a target="_blank" href="https://chromium.googlesource.com/chromiumos/third_party/coreboot/+/chromeos-2015.07/src/drivers/intel/fsp1_1/cache_as_ram.inc#90">TempRamInit</a> + </li> + <li>Alternating 0xbb and 0x02 - TempRamInit executed, no CPU microcode update found</li> + </ol> + </li> + <li>Add the CPU microcode update file + <ol type="A"> + <li>Add the microcode file with the following command +<pre><code>util/cbfstool/cbfstool build/coreboot.rom add -t microcode -n cpu_microcode_blob.bin -b <base address> -f cpu_microcode_blob.bin</code></pre> + </li> + <li>Set the Kconfig values + <ul> + <li>CONFIG_CPU_MICROCODE_CBFS_LOC set to the value from the previous step</li> + <li>CONFIG_CPU_MICROCODE_CBFS_LEN</li> + </ul> + </li> + </ol> + </li> + <li>Debug the result until port 0x80 outputs + <ol type="A"> + <li>0x90: <a target="_blank" href="https://chromium.googlesource.com/chromiumos/third_party/coreboot/+/chromeos-2015.07/src/include/console/post_codes.h#209">POST_FSP_TEMP_RAM_INIT</a> + - Just before calling + <a target="_blank" href="https://chromium.googlesource.com/chromiumos/third_party/coreboot/+/chromeos-2015.07/src/drivers/intel/fsp1_1/cache_as_ram.inc#90">TempRamInit</a> + </li> + <li>0x23 - Just before calling + <a target="_blank" href="https://chromium.googlesource.com/chromiumos/third_party/coreboot/+/chromeos-2015.07/src/drivers/intel/fsp1_1/cache_as_ram.inc#167">cache_as_ram_main</a> + which is the start of the verstage code which may be part of romstage + </li> + </ol> + </li> +</ol> + + +<hr> <p>Modified: 24 January 2016</p> </body> </html> \ No newline at end of file