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path: root/src/include/device/dram
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2014-12-07ddr3: Plumber DIMM type to parsed structure.Vladimir Serbinenko
Useful for distinguishing registered modules. Change-Id: Ibf4a0f2cde6d50a1c5c1da0f50e3022a2bc7ccd7 Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com> Reviewed-on: http://review.coreboot.org/7686 Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com> Tested-by: build bot (Jenkins)
2014-07-29sandy/ivybridge: Native raminit.Vladimir Serbinenko
Based on damo22's work and my X230 tracing. Works for my X230 in a variety of RAM configs. Also-By: Damien Zammit <damien@zamaudio.com> Change-Id: I1aa024c55a8416fc53b25e7123037df0e55a2769 Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com> Signed-off-by: Damien Zammit <damien@zamaudio.com> Reviewed-on: http://review.coreboot.org/5786 Tested-by: build bot (Jenkins) Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
2013-12-17device/dram/ddr3: Move CRC calculation in a separate functionAlexandru Gagniuc
Calculating the CRC of a SPD may be useful by itself, so split that part of the code in a separate function. Change-Id: I6c20d3db380551865126fd890e89de6b06359207 Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-on: http://review.coreboot.org/4537 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-07-11include: Fix spellingMartin Roth
Change-Id: Iadc813bc8208278996b2b1aa20cfb156ec06fac9 Signed-off-by: Martin Roth <martin.roth@se-eng.com> Reviewed-on: http://review.coreboot.org/3755 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-06-04DDR3: Add utilities for creating MRS commandsAlexandru Gagniuc
MRS commands are used to tell the DRAM chip what timing and what termination and drive strength to use, along with other parameters. The MRS commands are defined by the DDR3 specification [1]. This makes MRS commands hardware-independent. MRS command creation is duplicated in various shapes and forms in any chipset that does DDR3. This is an effort to create a generic MRS API that can be used with any chipset. This is used in the VX900 branch. [1] www.jedec.org/sites/default/files/docs/JESD79-3E.pdf Change-Id: Ia8bb593e3e28a5923a866042327243d798c3b793 Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-on: http://review.coreboot.org/3354 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-06-03dram: Add utilities for decoding DDR3 SPDsAlexandru Gagniuc
Add convenience utilities for decoding DDR3 SPDs and printing the information to the console. These have proven invaluable when writing the VX900 memory initialization. These are used in the VX900 branch Information printed has the following format: > SPD Data for DIMM 51 > Revision: 10 > Type : b > Key : 2 > Banks : 8 > Capacity: 1 Gb > Supported voltages: 1.5V > SDRAM width : 8 > Bus extension : 0 bits > Bus width : 64 > Optional features : DLL-Off_mode RZQ/7 RZQ/6 > Thermal features : ASR ext_temp_range > Thermal sensor : no > Standard SDRAM : no > Row addr bits : 13 > Column addr bits : 10 > Number of ranks : 1 > DIMM Capacity : 1024 MB > CAS latencies : 6 7 8 9 > tCKmin : 1.500 ns > tAAmin : 13.125 ns > tWRmin : 15.000 ns > tRCDmin : 13.125 ns > tRRDmin : 6.000 ns > tRPmin : 13.125 ns > tRASmin : 36.000 ns > tRCmin : 49.125 ns > tRFCmin : 110.000 ns > tWTRmin : 7.500 ns > tRTPmin : 7.500 ns > tFAWmin : 30.000 ns Change-Id: I30725a75caf74ac637db0a143344562bd9910466 Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-on: http://review.coreboot.org/3267 Tested-by: build bot (Jenkins)