From Milkymist Wiki

Contents 1 Milkymist SoC 0.x series 1.1 0.1 (August 20th, 2009) 1.2 0.1.1 (August 24th, 2009) 1.3 0.1.2 (September 12th, 2009) 1.4 0.1.3 (November 14th, 2009) 1.5 0.2 (January 16th, 2010) 1.6 0.2.1 (January 31st, 2010) 1.7 0.3 (February 18th, 2010) 1.8 0.4 (March 8th, 2010) 1.9 0.5 (April 18th, 2010) 1.10 0.5.1 (June 10th, 2010) 1.11 0.6 (June 27th, 2010) 1.12 0.7 (July 23rd, 2010) 1.13 0.8 (August 14th, 2010) 1.14 0.9 (October 3rd, 2010) 2 Milkymist SoC 1.x series 2.1 1.0RC1 (November 18th, 2010) 2.2 1.0RC2 (December 23rd, 2010) 2.3 1.0RC3 (April 6th, 2011) 2.4 1.0RC4 (May 23rd, 2011) 2.5 1.0 (July 10th, 2011) 2.6 1.0.1 (November 13th, 2011) 2.7 1.1 (November 29th, 2011) 2.8 1.2 (March 1st, 2012) 2.9 Other ideas 3 Milkymist SoC 2.x series? 4 Milkymist SoC 3.x series?

[edit] Milkymist SoC 0.x series

[edit] 0.1 (August 20th, 2009)

• First release (pre-alpha)
• Can render a simplified version of "Geiss - Cosmic Dust 2"
• Xilinx ML401 support only

[edit] 0.1.1 (August 24th, 2009)

• Support of a small SoC on the Avnet Spartan-3A board for educational purposes (http://www.tmplab.org/wiki/index.php/FPGA_Workshop)
• Minor bugfixes

[edit] 0.1.2 (September 12th, 2009)

• BIOS boot screen
• Chroma key support in TMU
• Documentation for TMU improvements in 0.3
• Minor bugfixes

[edit] 0.1.3 (November 14th, 2009)

• Directory reorganization
• GPLv3 license
• Preliminary support for external software emulation library
• Support for warm boot (from Takeshi)
• Support for PS/2 (from Takeshi)
• Edge-sensitive interrupts on all cores
• Documentation update

[edit] 0.2 (January 16th, 2010)

• Support for Ethernet (using Opencores ethmac)
• PS/2 write support (Takeshi)
• Hard reset support
• Dropped support for the Avnet Spartan-3A board, now available as a fork
• flterm 1.1 (now has default load addresses)
• Upgraded to LatticeMico32 3.5
• Reduced drive strength for SystemACE
• New splash screen

[edit] 0.2.1 (January 31st, 2010)

• Fixed DRAM write-to-read timing violation (Zeus)
• Improved DRAM read-to-write and write-to-write timing (Zeus)
• Cache coherent VGA framebuffer transactions
• Minor fixes and cleanups

[edit] 0.3 (February 18th, 2010)

• Major TMU redesign (TMU2):
  • Improved performance (2-3 times faster)
  • Rectangular rendering primitive
  • Bilinear texture filtering
  • Texture wrapping
  • Subpixel texture resolution
  • New vertex format
• PFPU modified to support the new TMU vertex format
• Additional MilkDrop features in the demo firmware:
  • More wave modes
  • Borders
  • Motion vectors (experimental)
  • Texture wrapping
  • Random preset chooser
  • Fine-grained decay

[edit] 0.4 (March 8th, 2010)

• New, light Ethernet MAC (Minimac)
• TFTP network boot from the BIOS
• Fixed TMU2 interpolation (bug reported by Jacky)

[edit] 0.5 (April 18th, 2010)

• System capabilities register
• Memory performance monitoring (retrieves memory bandwidth utilization and average memory access time from the live system)
• New PFPU instructions:
  • QUAKE (Quake-III style inverse square root approximation)
  • IF (conditional)
  • TSIGN (sign manipulation)
• Translucency (alpha) support in TMU
• Faster FastMemoryLink arbiter
• Fixed DRAM write-to-read (tWTR) timing violation on fully pipelined transfers
• New FPVM (Floating Point Virtual Machine) library for runtime compilation of PFPU programs
  • High-level API makes it easy to use the PFPU
  • Supports addition, subtraction, multiplication, fast inverse square root, square root, division (experimental), modulo (experimental), integer/float conversions, comparisons (above/below/equal), conditional statements (if), absolute value, sine, cosine, integer part, min(), max()
• New patch parser
• New renderer features
  • Configurable per-vertex equations
  • Video echo
  • Warp
  • Scale (sx/sy)
  • Q variables
• New patches included
• irender command to input patch code on the serial console
• Build host tools using clang instead of GCC
• Software bugfixes
  • TFTP boot in QEMU
  • Correct placement of motion vectors
  • LCD user interface race conditions
  • Renderer stop race conditions

[edit] 0.5.1 (June 10th, 2010)

• Complete thesis report in documentation
• 8kB->16kB texel cache
• TMU performance monitoring
• Fixed texel cache initialization bug
• Fixed handling of variables read before written in per-vertex equations
• All peripherals enabled by default (including Ethernet)
• New SDRAM initialization system, easy compatibility with 3rd party bootloaders
• Removed on-chip SRAM (no longer needed)
• Increased Minimac FIFO sizes to prevent xflows
• Faster line drawing code
• Now comes with 62 patches

[edit] 0.6 (June 27th, 2010)

• Support for the Milkymist One
• OSD patch selection
• New asynchronous FIFO design
• Improved TMU2 rounding mode
• Improved decay handling
• 16kB->32kB texel cache
• 32kB L2 cache
• Smaller and direct mapped L1 cache
• Limit FPS to 25 instead of 30 to ensure smooth execution on more presets
• More patches

[edit] 0.7 (July 23rd, 2010)

• Support for video input (not used by the demo renderer)
• Support for MIDI (not used by the demo renderer)
• Support for VESA DDC (not used by the demo renderer)
• Support for RC5 infrared remote control (usable in OSD menu)
• Flash write support (contributed by Michael Walle)
• New memory map (contributed by Michael Walle)
• Experimental "softusb" USB core (no functional firmware yet)
• Increased Minimac FIFO sizes
• Improved netboot code

[edit] 0.8 (August 14th, 2010)

• Support for DMX
• Support for memory card
• Support for Synplify synthesis
• Fixed a bug that prevented access to the upper 64M of SDRAM. The whole 128M are addressable now.
• Rewritten USB PHY
• All AVR Classic instructions in Navré, except conditional jumps on I/O registers
• Navré bugfixes

[edit] 0.9 (October 3rd, 2010)

• Extensive Navré core testing
• Navré bugfixes
• Wishbone burst support in L2 cache
• Crossbar Wishbone switch
• LM32 JTAG debugger support (Michael Walle)
• Support for USB input devices (mouse + keyboard)
• Text console in BIOS and demo firmware
• MIDI THRU support
• New memory map (Michael Walle)
• New flash map
• Standby and rescue bitstreams
• ICAP write support
• Fixed DDC EDID read, now works reliably with all monitors
• Reduced frequency to 80MHz
• Memory tester core
• Board revision readout
• Fixed SDRAM reset bug
• Code cleanups

[edit] Milkymist SoC 1.x series

[edit] 1.0RC1 (November 18th, 2010)

• USB bugfixes
• MAC address readout
• SoC version readout
• Debugger bugfixes (Michael Walle)
• Documentation update

[edit] 1.0RC2 (December 23rd, 2010)

• Fix makeraw extension detection
• Do not require LCK_cycle for standby bitstream
• TMU: additive drawing
• Generate byte-swapped raw bitstream images for Flickernoise flashing
• Non-essential cores disabled in standby bitstream to ease timing closure

[edit] 1.0RC3 (April 6th, 2011)

• Support video mode switching up to 1024x768
• Support WM9707 audio codec
• Support GDB serial debugging (Michael Walle)
• flterm GDB pass-through (Michael Walle)
• Full support for UrJTAG loading and flashing
• Support LZMA decompression of flash boot images
• GSI LM32 patches
• Re-enabled all cores in rescue mode (works with ISE 13.1)
• Support PCB revision 2 (RC3 run)
• Memory card bugfixes

[edit] 1.0RC4 (May 23rd, 2011)

• New Ethernet MAC (minimac2)
• BIOS: report rescue mode to booted application
• BIOS: disable splash screen display with a short press of the power button
• GDB: fix max packet size reporting
• Standby: debounce keys, only power up on rising edge

[edit] 1.0 (July 10th, 2011)

• Fixed RC5 sampling point
• Fixed BT656CAP IRQ timing
• Reset Ethernet PHY during BIOS startup
• gdbstub: disable break on entering debug ROM

[edit] 1.0.1 (November 13th, 2011)

• Catch NULL pointers and generate bus errors
• flterm: log support (Xiangfu Liu)
• LM32: update to upstream 3.6 sources (Michael Walle)
• Enable ISE 13.2 BRAM silicon bug workaround (Xilinx AR 39999)
• gdbstub: save and restore IE/IM/IP (Michael Walle)
• gdbstub: fix off-by-one error (Michael Walle)

[edit] 1.1 (November 29th, 2011)

• TMU prefetch
• New UART core (Michael Walle)
• USB firmware bugfixes (Werner Almesberger)
• USB DPLL fixes
• 8K softusb program memory
• Auto-on
• gdbstub: set correct uart speed (Michael Walle)
• SoC frequency readable from sysctl (Michael Walle)
• Writable gdbstub (Michael Walle)
• flterm: make kernel image optional (Michael Walle)

[edit] 1.2 (March 1st, 2012)

• Experimental support for USB-MIDI devices (Werner Almesberger)
• New PFPU compiler (Werner Almesberger)
• Adjusted VGA timings for compatibility with more screens (Xiangfu Liu)
• Removed demo firmware
• Makefile cleanup (Werner Almesberger, Xiangfu Liu)

[edit] Other ideas

• More precise VGA timings
• Support for video encoding and network streaming
• Support for scaled video output
• Support for color inversion in TMU
• Digital video output

[edit] Milkymist SoC 2.x series?

• PHT: Pluggable HDL Templates (automatically generates interconnect, arbiters, etc.)
• HPDMC2: out-of-order SDRAM controller with QoS and page hit optimization
• Split transaction FML2 bus
• Further resource-optimized CSR2 bus
• Separate DMA backbone
• Scatter-gather DMA controller
• Mico32 MMU
• 32bpp RGBA graphics everywhere

[edit] Milkymist SoC 3.x series?

• On-the-fly hardware compilation of shaders + partial reconfiguration