In message FD2AC9A020DDD51194710008C7089B20053D4CB2@dlee17.itg.ti.com you wrote:
Let me restate my minor point hopefully more correctly. - gd/r8 is only used to reference things in the gd_t structure and its members. Given the way things currently stand for ARM something like the following might work as well and free up a register and remove an assembly dependency:
But this is exactly what I want. The "global data" pointer (which used to be calles "initial data pointer") is meant for some data which is needed globally (i. e. cannot be put on a stack) and may be used before the initialization of SDRAM.
The current implementation of the init sequence is not in the philosophy of U-Boot. It may be changed. Maybe soon.
The design goal is to switch to C code as soon as possible, and implement as much as possible in C - including for example the initialization of the memory controller.
Best regards,
Wolfgang Denk