README: update

README

@@ -9,6 +9,7 @@ a high performance and small footprint SoC based on Migen
 [> Features
 -----------
  * LatticeMico32 CPU, modified to include an optional MMU (experimental).
+ * mor1kx (a better OpenRISC implementation) as alternative CPU option.
  * High performance memory controller capable of issuing several SDRAM commands
    per FPGA cycle.
  * Supports SDR, DDR, LPDDR and DDR2.
@@ -27,6 +28,7 @@ MiSoC comes with built-in support for the following boards:
  * Mixxeo, the digital video mixer from M-Labs [XC6SLX45]
  * Milkymist One, the original M-Labs video synthesizer [XC6SLX45]
  * Papilio Pro, a simple and low-cost development board [XC6SLX9]
+ * KC705, a Kintex-7 devboard from Xilinx [XC7K325T]
 MiSoC is portable and support for other boards can easily be added as external
 modules.
 
@@ -36,8 +38,8 @@ modules.
   Get Migen from: https://github.com/m-labs/migen
 
 2. Install JTAG tools.
-  For Mixxeo and M1: http://urjtag.org
-  For Papilio Pro:   http://xc3sprog.sourceforge.net
+  For Mixxeo and M1:          http://urjtag.org
+  For Papilio Pro and KC705:  http://xc3sprog.sourceforge.net
 
 3. Obtain and build any required flash proxy bitstreams. Flash proxy bitstreams
   give JTAG access to a flash chip through the FPGA.
@@ -51,7 +53,7 @@ modules.
   make
   make install
   
-5. Compile and install GCC 4.5. Take gcc-core and gcc-g++ from GNU.
+5. Compile and install GCC. Take gcc-core and gcc-g++ from GNU (version 4.5 or >=4.9).
   rm -rf libstdc++-v3
   mkdir build && cd build
   ../configure --target=lm32-elf --enable-languages="c,c++" --disable-libgcc --disable-libssp
@@ -65,8 +67,9 @@ modules.
 
 7. Build and flash the BIOS and bitstream. Run from MiSoC:
   For Mixxeo:      ./make.py all
-  For M1:          ./make.py -p m1 -s FramebufferSoC all
-  For Papilio Pro: ./make.py -t simple all
+  For M1:          ./make.py -p m1 all
+  For Papilio Pro: ./make.py -t ppro all
+  For KC705:       ./make.py -t kc705 all
 
 8. Run a terminal program on the board's serial port at 115200 8-N-1.
   You should get the BIOS prompt.