Debian on iomega storcenter ix4-200d: succes!

I want to report that I managed to get the 3.18.5 rootfs running on a Iomega storcenter ix4-200d.
After a lot research about the device tree and fiddling around with dts files I also managed to get the four sata ports and dual gigabit ports to work. There is a second sata controller on the PCI bus, and the ethernet interfaces had to be configured based on a very old kernel patch I found online that never made it into the kernel (http://lists.infradead.org/pipermail/linux-arm-kernel/2009-November/003906.html)

I have not managed to get the gpio or i2c devices working since it is very hard (not impossible, but a lot of hassle) to actually get the source code for this NAS. Lenovo wants a cheque or money order to cover expenses before they will mail it to you on a cd. (https://lenovo-na-en.custhelp.com/app/answers/detail/a_id/34787)

The uboot does not support a separate dtb, so it has to be appended to the kernel (see bodhi's excellent instructions in http://forum.doozan.com/read.php?2,12096)

DTS file for the ix4-200d

/dts-v1/;                                                                                                         
                                                                                                                  
#include "kirkwood.dtsi"                                                                                          
#include "kirkwood-6281.dtsi"                                                                                     
                                                                                                                  
/ {                                                                                                               
        model = "Iomega ix4-2OOd";                                                                                
        compatible = "marvell,rd88f6281-a", "marvell,rd88f6281","marvell,kirkwood-88f6281", "marvell,kirkwood";   
                                                                                                                  
memory {                                                                                                          
        device_type = "memory";                                                                                   
        reg = <0x00000000 0x20000000>;                                                                            
};                                                                                                                
                                                                                                                  
chosen {                                                                                                          
        bootargs = "console=ttyS0,115200n8 earlyprintk";                                                          
        stdout-path = &uart0;                                                                                     
};                                                                                                                
                                                                                                                  
mbus {                                                                                                            
        pcie-controller {                                                                                         
                status = "okay";                                                                                  
                                                                                                                  
                pcie@1,0 {                                                                                        
                        status = "okay";                                                                          
                };                                                                                                
        };                                                                                                        
};                                                                                                                
                                                                                                                  
ocp@f1000000 {                                                                                                    
                                                                                                                  
        serial@12000 {                                                                                            
                status = "ok";                                                                                    
        };                                                                                                        
                                                                                                                  
        sata@80000 {                                                                                              
                status = "okay";                                                                                  
                nr-ports = <2>;                                                                                   
        };                                                                                                        
                                                                                                                  
};                                                                                                                
                                                                                                                  
};                                                                                                                
                                                                                                                  
&nand {                                                                                                           
        status = "okay";                                                                                          
                                                                                                                  
        partition@0 {                                                                                             
                label = "u-boot";                                                                                 
                reg = <0x0000000 0x100000>;                                                                       
                read-only;                                                                                        
        };                                                                                                        
                                                                                                                  
        partition@100000 {                                                                                        
                label = "uImage";                                                                                 
                reg = <0x0100000 0x200000>;                                                                       
        };                                                                                                        
                                                                                                                  
        partition@300000 {                                                                                        
                label = "rootfs";                                                                                 
                reg = <0x0300000 0x500000>;                                                                       
        };                                                                                                                                                                                            
};                                                                                            
                                                                                              
&mdio {                                                                                       
        status = "okay";                                                                      
                                                                                              
        ethphy0: ethernet-phy@8 {                                                             
                device_type = "ethernet-phy";                                                 
                reg = <8>;                                                                    
        };                                                                                    
                                                                                              
        ethphy1: ethernet-phy@9 {                                                             
                device_type = "ethernet-phy";                                                 
                reg = <9>;                                                                    
        };                                                                                    
};                                                                                            
                                                                                              
&eth0 {                                                                                       
        status = "okay";                                                                      
        ethernet0-port@0 {                                                                    
                phy-handle = <&ethphy0>;                                                      
        };                                                                                    
};                                                                                            
                                                                                              
&eth1 {                                                                                       
        status = "okay";                                                                      
        ethernet1-port@0 {                                                                    
                phy-handle = <&ethphy1>;                                                      
        };                                                                                    
};

Serial:
115200 baud 3.3v, pinout in attachment.



I hope this helps someone else trying to run debian on their ix4!
Edit: added info about the serial port.