Hi, Renaud barbier wrote: > I am in the middle of NAND debugging on a MPC8544 based system. > > In the following code for the mpc8360erdk, why is there > the instruction "out_8(upm->io_addr, 0x0);" in the for loop.
it is a dummy write transaction step of the UPM RAM array programming algorithm to hit the relevant chip select. Take a look at section '10.4.4.2 Programming the UPMs' of the MPC8360E Reference Manual, the steps to write the UPM RAM array are described there. > Is that board specific? No. Anatolij _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot