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Documentation: Add x86 documentation for required files Document the required files to perform a minimal coreboot/FSP build for x86. TEST=None Change-Id: I65b2947114634fce982ce82fb7c577fd5f47ed10 Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com> Reviewed-on: https://review.coreboot.org/13438 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2016-01-07 20:24:24 +01:00
<!DOCTYPE html>
<html>
<head>
<title>Board</title>
</head>
<body>
<h1>x86 Board Development</h1>
<p>
Board development requires System-on-a-Chip (SoC) support.
The combined steps are listed
Documentation: Fix links to Intel/documentation.html Fix links to the documenation.html page which was renamed from x86Documenation.html. TEST=Verified documentation links and searched for x86Documenation.html Change-Id: Icee79bab4c05ac9b8010dc7acdde8dd5e2ab2909 Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com> Reviewed-on: https://review.coreboot.org/13592 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2016-02-03 16:28:22 +01:00
<a target="_blank" href="../development.html">here</a>.
Documentation: Add x86 documentation for required files Document the required files to perform a minimal coreboot/FSP build for x86. TEST=None Change-Id: I65b2947114634fce982ce82fb7c577fd5f47ed10 Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com> Reviewed-on: https://review.coreboot.org/13438 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2016-01-07 20:24:24 +01:00
The development steps for the board are listed below:
</p>
<ol>
<li><a href="#RequiredFiles">Required Files</a></li>
Documentation: x86 Enable Serial Output Document the steps necessary to enable serial output TEST=None Change-Id: Ifc0e700d7ef54fb1e28ca9bca34b94cccd3633ac Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com> Reviewed-on: https://review.coreboot.org/13444 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2016-02-04 20:21:33 +01:00
<li>Enable <a href="#SerialOutput">Serial Output</a></li>
Documentation: x86 add sleep state and minimal memory setup Document how to add the sleep state and minimal memory setup. TEST=None Change-Id: Ibebeef34269dbf2366f1bea6d734f6bade4e4028 Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com> Reviewed-on: https://review.coreboot.org/13446 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2016-02-04 20:23:36 +01:00
<li>Load the <a href="#SpdData">Memory Timing Data</a></li>
Documentation: Add x86 documentation for required files Document the required files to perform a minimal coreboot/FSP build for x86. TEST=None Change-Id: I65b2947114634fce982ce82fb7c577fd5f47ed10 Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com> Reviewed-on: https://review.coreboot.org/13438 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2016-01-07 20:24:24 +01:00
</ol>
<hr>
<h1><a name="RequiredFiles">Required Files</a></h1>
<p>
Create the board directory as src/mainboard/&lt;Vendor&gt;/&lt;Board&gt;.
</p>
<p>
The following files are required to build a new board:
</p>
<ol>
<li>Kconfig.name - Defines the Kconfig value for the board</li>
<li>Kconfig
<ol type="A">
<li>Selects the SoC for the board and specifies the SPI flash size
<ol type="I">
<li>BOARD_ROMSIZE_KB_&lt;Size&gt;</li>
<li>SOC_&lt;Vendor&gt;_&lt;Chip Family&gt;</li>
</ol>
</li>
<li>Declare the Kconfig values for:
<ol type="I">
<li>MAINBOARD_DIR</li>
<li>MAINBOARD_PART_NUMBER</li>
<li>MAINBOARD_VENDOR</li>
</ol>
</li>
</ol>
</li>
<li>devicetree.cb - Enable root bridge and serial port
<ol type="A">
<li>The first line must be "chip soc/Intel/&lt;soc family&gt;";
this path is used by the generated static.c to include the chip.h
header file
</li>
</ol>
</li>
<li>romstage.c
<ol type="A">
<li>Add routine mainboard_romstage_entry which calls romstage_common</li>
</ol>
</li>
<li>Configure coreboot build:
<ol type="A">
<li>Set LOCALVERSION</li>
<li>FLASHMAP_OFFSET = 0x00700000</li>
<li>Select vendor for the board</li>
<li>Select the board</li>
<li>CBFS_SIZE = 0x00100000</li>
<li>Set the CPU_MICROCODE_CBFS_LEN</li>
<li>Set the CPU_MICROCODE_CBFS_LOC</li>
<li>Set the FSP_IMAGE_ID_STRING</li>
<li>Set the FSP_LOC</li>
<li>Disable GOP_SUPPORT</li>
<li>No payload</li>
<li>Choose the default value for all other options</li>
</ol>
</li>
</ol>
Documentation: x86 Enable Serial Output Document the steps necessary to enable serial output TEST=None Change-Id: Ifc0e700d7ef54fb1e28ca9bca34b94cccd3633ac Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com> Reviewed-on: https://review.coreboot.org/13444 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2016-02-04 20:21:33 +01:00
<hr>
<h1><a name="SerialOutput">Enable Serial Output</a></h1>
<p>
Use the following steps to enable serial output:
</p>
<ol>
<li>Implement the car_mainboard_pre_console_init routine in the com_init.c
file:
<ol type="A">
<li>Power on and enable the UART controller</li>
<li>Connect the UART receive and transmit data lines to the
appropriate SoC pins
</li>
</ol>
</li>
<li>Add Makefile.inc
<ol type="A">
<li>Add com_init.c to romstage</li>
</ol>
</li>
</ol>
Documentation: x86 add sleep state and minimal memory setup Document how to add the sleep state and minimal memory setup. TEST=None Change-Id: Ibebeef34269dbf2366f1bea6d734f6bade4e4028 Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com> Reviewed-on: https://review.coreboot.org/13446 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2016-02-04 20:23:36 +01:00
<hr>
<h1><a name="SpdData">Memory Timing Data</a></h1>
<p>
Memory timing data is located in the flash. This data is in the format of
<a target="_blank" href="https://en.wikipedia.org/wiki/Serial_presence_detect">serial presence detect</a>
(SPD) data.
Use the following steps to load the SPD data:
</p>
<ol>
<li>Edit Kconfig to add the DISPLAY_SPD_DATA" value which enables the
display of the SPD data being passed to MemoryInit
</li>
<li>Create an "spd" subdirectory</li>
<li>Create an spd/spd.c file for the SPD implementation
<ol type="A">
<li>Implement the mainboard_fill_spd_data routine
<ol type="i">
<li>Read the SPD data either from the spd.bin file or using I2C or SMBUS</li>
<li>Fill in the pei_data structure with SPD data for each of the DIMMs</li>
<li>Set the DIMM channel configuration</li>
</ol>
</li>
</ol>
</li>
<li>Add an .spd.hex file containing the memory timing data to the spd subdirectory</li>
<li>Create spd/Makefile.inc
<ol type="A">
<li>Add spd.c to romstage</li>
<li>Add the .spd.hex file to SPD_SOURCES</li>
</ol>
</li>
<li>Edit Makefile.inc to add the spd subdirectory</li>
<li>Edit romstage.c
<ol type="A">
<li>Call mainboard_fill_spd_data</li>
<li>Add mainboard_memory_init_params to copy the SPD and DRAM
configuration data from the pei_data structure into the UPDs
for MemoryInit
</li>
</ol>
</li>
<li>Edit devicetree.cb
<ol type="A">
<li>Include the UPD parameters for MemoryInit except for:
<ul>
<li>Address of SPD data</li>
<li>DRAM configuration set above</li>
</ul>
</li>
</ol>
</li>
<li>A working FSP
<a target="_blank" href="../fsp1_1.html#MemoryInit">MemoryInit</a>
routine is required to complete debugging</li>
<li>Debug the result until port 0x80 outputs
<ol type="A">
<li>0x34:
- Just after entering
<a target="_blank" href="http://review.coreboot.org/gitweb?p=coreboot.git;a=blob;f=src/drivers/intel/fsp1_1/raminit.c;hb=HEAD#l67">raminit</a>
</li>
<li>0x36:
- Just before displaying the
<a target="_blank" href="http://review.coreboot.org/gitweb?p=coreboot.git;a=blob;f=src/drivers/intel/fsp1_1/raminit.c;hb=HEAD#l106">UPD parameters</a>
for FSP MemoryInit
</li>
<li>0x92: <a target="_blank" href="http://review.coreboot.org/gitweb?p=coreboot.git;a=blob;f=src/include/console/post_codes.h;hb=HEAD#l219">POST_FSP_MEMORY_INIT</a>
- Just before calling FSP
<a target="_blank" href="http://review.coreboot.org/gitweb?p=coreboot.git;a=blob;f=src/drivers/intel/fsp1_1/raminit.c;hb=HEAD#l125">MemoryInit</a>
</li>
<li>0x37:
- Just after returning from FSP
<a target="_blank" href="http://review.coreboot.org/gitweb?p=coreboot.git;a=blob;f=src/drivers/intel/fsp1_1/raminit.c;hb=HEAD#l127">MemoryInit</a>
</li>
</ol>
</li>
<li>Continue debugging with CONFIG_DISPLAY_HOBS enabled until TempRamExit is called</li>
</ol>
Documentation: x86 Enable Serial Output Document the steps necessary to enable serial output TEST=None Change-Id: Ifc0e700d7ef54fb1e28ca9bca34b94cccd3633ac Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com> Reviewed-on: https://review.coreboot.org/13444 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2016-02-04 20:21:33 +01:00
Documentation: Add x86 documentation for required files Document the required files to perform a minimal coreboot/FSP build for x86. TEST=None Change-Id: I65b2947114634fce982ce82fb7c577fd5f47ed10 Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com> Reviewed-on: https://review.coreboot.org/13438 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2016-01-07 20:24:24 +01:00
<hr>
<p>Modified: 31 January 2016</p>
</body>
</html>