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/13441
-gerrit
commit 65c554d3d06a9f747aefb7bec718e48f50d20746 Author: Lee Leahy leroy.p.leahy@intel.com Date: Sun Jan 31 10:49:35 2016 -0800
Documentation: Add x86 bootblock support
Document what is involved with adding the bootblock support.
TEST=None
Change-Id: I6c8cc38e1b9346b4962588b33ca5e4ab8eac24c3 Signed-off-by: Lee Leahy leroy.p.leahy@intel.com --- Documentation/Intel/SoC/soc.html | 96 ++++++++++++++++++++++++++++++++++++ Documentation/Intel/development.html | 1 + 2 files changed, 97 insertions(+)
diff --git a/Documentation/Intel/SoC/soc.html b/Documentation/Intel/SoC/soc.html index 30821dc..7a712d8 100644 --- a/Documentation/Intel/SoC/soc.html +++ b/Documentation/Intel/SoC/soc.html @@ -17,6 +17,7 @@ <li>SoC <a href="#RequiredFiles">Required Files</a></li> <li><a href="#Descriptor">Start Booting</a></li> <li><a href="#EarlyDebug">Early Debug</a></li> + <li><a href="#Bootblock">Bootblock</a></li> </ol>
@@ -100,6 +101,101 @@ mv build/coreboot.rom.new build/coreboot.rom
<hr> +<h1><a name="Bootblock">Bootblock</a></h1> +<p> + Implement the bootblock using the following steps: +</p> +<ol> + <li>Create the directory as src/soc/<Vendor>/<Chip Family>/bootblock</li> + <li>Add the timestamp.inc file which initializes the floating point registers and saves + the initial timestamp. + </li> + <li>Add the bootblock.c file which: + <ol type="A"> + <li>Enables memory-mapped PCI config access</li> + <li>Updates the microcode by calling intel_update_microcode_from_cbfs</li> + <li>Enable ROM caching</li> + </ol> + </li> + <li>Edit the src/soc/<Vendor>/<Chip Family>/Kconfig file + <ol type="A"> + <li>Add the BOOTBLOCK_CPU_INIT value to point to the bootblock.c file</li> + <li>Add the CHIPSET_BOOTBLOCK_INCLUDE value to point to the timestamp.inc file</li> + </ol> + </li> + <li>Edit the src/soc/<Vendor>/<Chip Family>/Makefile.inc file + <ol type="A"> + <li>Add the bootblock subdirectory</li> + </ol> + </li> + <li>Edit the src/soc/<Vendor>/<Chip Family>/memmap.c file + <ol type="A"> + <li>Add the fsp/memmap.h include file</li> + <li>Add the mmap_region_granularity routine</li> + </ol> + </li> + <li>Add the necessary .h files to define the necessary values and structures</li> + <li>When successful port 0x80 will output the following values: + <ol type="A"> + <li>0x01: <a target="_blank" href="http://review.coreboot.org/gitweb?p=coreboot.git;a=blob;f=src/include/console/post_codes.h;hb=HEAD#l45">POST_RESET_VECTOR_CORRECT</a> + - Bootblock successfully executed the + <a target="_blank" href="http://review.coreboot.org/gitweb?p=coreboot.git;a=blob;f=src/cpu/x86/16bit/reset16.inc;hb=HEAD#l4">reset vector</a> + and entered the 16-bit code at + <a target="_blank" href="http://review.coreboot.org/gitweb?p=coreboot.git;a=blob;f=src/cpu/x86/16bit/entry16.inc;hb=HEAD#l35">_start</a> + </li> + <li>0x10: <a target="_blank" href="http://review.coreboot.org/gitweb?p=coreboot.git;a=blob;f=src/include/console/post_codes.h;hb=HEAD#l53">POST_ENTER_PROTECTED_MODE</a> + - Bootblock executing in + <a target="_blank" href="http://review.coreboot.org/gitweb?p=coreboot.git;a=blob;f=src/cpu/x86/32bit/entry32.inc;hb=HEAD#l55">32-bit mode</a> + </li> + <li>0x10 - Verstage/romstage reached 32-bit mode</li> + </ol> + </li> +</ol> + +<p> + <b>Build Note:</b> The following files are included into the default bootblock image: +</p> +<ul> + <li><a target="_blank" href="http://review.coreboot.org/gitweb?p=coreboot.git;a=blob;f=src/arch/x86/bootblock_romcc.S;hb=HEAD">src/arch/x86/bootblock_romcc.S</a> + added by <a target="_blank" href="http://review.coreboot.org/gitweb?p=coreboot.git;a=blob;f=src/arch/x86/Makefile.inc;hb=HEAD#l133">src/arch/x86/Makefile.inc</a> + and includes the following files: + <ul> + <li><a target="_blank" href="http://review.coreboot.org/gitweb?p=coreboot.git;a=blob;f=src/arch/x86/prologue.inc">src/arch/x86/prologue.inc</a></li> + <li><a target="_blank" href="http://review.coreboot.org/gitweb?p=coreboot.git;a=blob;f=src/cpu/x86/16bit/reset16.inc">src/cpu/x86/16bit/reset16.inc</a></li> + <li><a target="_blank" href="http://review.coreboot.org/gitweb?p=coreboot.git;a=blob;f=src/cpu/x86/16bit/entry16.inc">src/cpu/x86/16bit/entry16.inc</a></li> + <li><a target="_blank" href="http://review.coreboot.org/gitweb?p=coreboot.git;a=blob;f=src/cpu/x86/32bit/entry32.inc">src/cpu/x86/32bit/entry32.inc</a></li> + <li>The code in + <a target="_blank" href="http://review.coreboot.org/gitweb?p=coreboot.git;a=blob;f=src/arch/x86/bootblock_romcc.S">src/arch/x86/bootblock_romcc.S</a> + includes src/soc/<Vendor>/<Chip Family>/bootblock/timestamp.inc using the + CONFIG_CHIPSET_BOOTBLOCK_INCLUDE value set above + </li> + <li><a target="_blank" href="http://review.coreboot.org/gitweb?p=coreboot.git;a=blob;f=src/cpu/x86/sse_enable.inc">src/cpu/x86/sse_enable.inc</a></li> + <li>The code in + <a target="_blank" href="http://review.coreboot.org/gitweb?p=coreboot.git;a=blob;f=src/arch/x86/Makefile.inc;hb=HEAD#l156">src/arch/x86/Makefile.inc</a> + invokes the ROMCC tool to convert the following "C" code into assembler as bootblock.inc: + <ul> + <li><a target="_blank" href="http://review.coreboot.org/gitweb?p=coreboot.git;a=blob;f=src/arch/x86/include/arch/bootblock_romcc.h">src/arch/x86/include/arch/bootblock_romcc.h</a></li> + <li><a target="_blank" href="http://review.coreboot.org/gitweb?p=coreboot.git;a=blob;f=src/cpu/x86/lapic/boot_cpu.c">src/cpu/x86/lapic/boot_cpu.c</a></li> + <li>The CONFIG_BOOTBLOCK_CPU_INIT value set above typically points to the code in + src/soc/<Vendor>/<Chip Family>/bootblock/bootblock.c + </li> + </ul> + </li> + </ul> + </li> + <li><a target="_blank" href="http://review.coreboot.org/gitweb?p=coreboot.git;a=blob;f=src/arch/x86/id.S">src/arch/x86/id.S</a> + added by <a target="_blank" href="http://review.coreboot.org/gitweb?p=coreboot.git;a=blob;f=src/arch/x86/Makefile.inc;hb=HEAD#l110">src/arch/x86/Makefile.inc</a> + </li> + <li><a target="_blank" href="http://review.coreboot.org/gitweb?p=coreboot.git;a=blob;f=src/cpu/intel/fit/fit.S">src/cpu/intel/fit/fit.S</a> + added by <a target="_blank" href="http://review.coreboot.org/gitweb?p=coreboot.git;a=blob;f=src/cpu/intel/fit/Makefile.inc;hb=HEAD">src/cpu/intel/fit/Makefile.inc</a> + </li> + <li><a target="_blank" href="http://review.coreboot.org/gitweb?p=coreboot.git;a=blob;f=src/arch/x86/walkcbfs.S">src/arch/x86/walkcbfs.S</a> + added by <a target="_blank" href="http://review.coreboot.org/gitweb?p=coreboot.git;a=blob;f=src/arch/x86/Makefile.inc;hb=HEAD#l137">src/arch/x86/Makefile.inc</a> + </li> +</ul> + + +<hr> <p>Modified: 31 January 2016</p> </body> </html> \ No newline at end of file diff --git a/Documentation/Intel/development.html b/Documentation/Intel/development.html index a225300..e911c24 100644 --- a/Documentation/Intel/development.html +++ b/Documentation/Intel/development.html @@ -69,6 +69,7 @@ </li> <li>Get result to start <a target="_blank" href="SoC/soc.html#Descriptor">booting</a></li> <li><a target="_blank" href="SoC/soc.html#EarlyDebug">Early Debug</a></li> + <li>Implement and debug the <a target="_blank" href="SoC/soc.html#Bootblock">bootblock</a> code</li> </ol>
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Leroy P Leahy