Commit Graph

27 Commits

Author SHA1 Message Date
Florent Kermarrec 50e857e99c sdram/phy/s6ddrphy: add S6QuarterRateDDRPHY to run DDR3 at higher frequencies.
Built on top of S6HalfRateDDRPHY, exposes a 4 phases DFI interface to the controller with a 2x slower clock.
Validated on the Numato Lab opsis board (50MHz sys_clk/ DDR400), should also work on the Novena laptop (same DDR3 module).
2015-08-22 12:17:48 +02:00
Florent Kermarrec 158fbe49ac sdram/phy/s6ddrphy: rename S6DDRPHY to S6HalfRateDDRPHY and use ORed wrdata_en/rddata_en (the controller already manages that) 2015-08-22 11:47:26 +02:00
Florent Kermarrec c03ef526eb sdram/phy/s6ddrphy: add DDR3 support 2015-08-04 12:29:42 +02:00
Florent Kermarrec 52fba05e26 sdram/phy/initsequence: add burst chop 4 (BC4) for DDR3
This is needed for half rate controllers with burst length of 4.
For best efficiency quarter rate controllers should be used.
2015-08-04 11:19:20 +02:00
Florent Kermarrec f96a856c97 sdram/phy: fix simphy memory usage 2015-06-02 19:33:09 +02:00
Florent Kermarrec 2ccb5655c9 global: more pep8
we will have to continue the work... volunteers are welcome :)
2015-04-13 18:02:26 +02:00
Florent Kermarrec fc68d915c1 global: pep8 (E261, E271) 2015-04-13 17:16:12 +02:00
Florent Kermarrec f3c010c1d5 global: pep8 (E225) 2015-04-13 17:01:05 +02:00
Florent Kermarrec 796119fcaf global: pep8 (E203) 2015-04-13 16:53:07 +02:00
Florent Kermarrec f68423f423 global: pep8 (E302) 2015-04-13 16:47:22 +02:00
Florent Kermarrec d9e09707ae global: pep8 (replace tabs with spaces) 2015-04-13 16:19:55 +02:00
Robert Jordens d6c19858fa s6ddrphy: redo phase_sel, get rid of CLOCK_DEDICATED_ROUTE 2015-04-10 16:12:29 +08:00
Florent Kermarrec 75ee8a5db9 sdram/phy/simphy: OK with DDR3 2015-03-28 01:59:55 +01:00
Florent Kermarrec 51ce7cad6f sdram/phy/simphy: expose settings to user and test with DDR/LPDDR/DDR2 2015-03-28 01:18:35 +01:00
Florent Kermarrec 9137b91e9e sdram: remove nbits from modules and databits from GeomSettings 2015-03-26 23:27:37 +01:00
Florent Kermarrec 9a9af17aca sdram/phy/simphy: remove use of iter 2015-03-26 23:02:23 +01:00
Florent Kermarrec e6de4b1bf9 sdram/phy: add simphy (software memtest OK in simulation with MT48LC4M16) 2015-03-26 22:28:32 +01:00
Florent Kermarrec ba8b24df57 sdram: pass module as phy parameter, define memtype in modules and only keep phy parameter in register_sdram_phy 2015-03-25 16:57:38 +01:00
Florent Kermarrec 7ea9e2ba89 sdram: use names that are more explicit for bank_a, row_a,...: bankbits, rowbits, .... Add databits to GeomSettings. 2015-03-25 16:56:29 +01:00
Florent Kermarrec 905be50451 sdram: move lasmibus to core, rename crossbar to lasmixbar and move it to core, move dfi to phy 2015-03-03 09:55:25 +01:00
Florent Kermarrec 9210272356 sdram: pass phy_settings to LASMIcon, MiniCON and init_sequence 2015-03-03 09:23:21 +01:00
Florent Kermarrec 2f7206b386 sdram: revert use of scalar values for DFIInjector 2015-03-03 09:09:54 +01:00
Florent Kermarrec 8280acd3a7 sdram: only keep frontend logic and sdram core declaration in soc/sdram.py, move other logic to sdram/core 2015-03-02 12:17:49 +01:00
Florent Kermarrec 3465db25a7 soc/sdram: be more generic in naming 2015-03-02 11:55:28 +01:00
Florent Kermarrec de698c51e4 sdram: rename self.phy_settings to self.settings (using phy.settings instead of phy.phy_settings seems cleaner) 2015-03-02 11:29:43 +01:00
Florent Kermarrec 7300879b7f sdram: move dfii to phy 2015-03-02 09:08:28 +01:00
Florent Kermarrec 2c51adcd68 misoclib: better organization (create cores categories: cpu, mem, com, ...) 2015-02-28 09:40:44 +01:00