[U-Boot-Users] ./cpu/mpc8260/cpu_init.c: cpu_init_f(): gd pointing to wrong location?

KokHow Teh KokHow.Teh at marconi.com
Wed Mar 23 04:00:34 CET 2005


Hi;
      I am using u-boot-1.1.2.tar.bz2 and I am referring to cpu/mpc8260
arch.
The MPC8260ADS.h defines the temporary ram and the global data structure
locations as follows:

#define CFG_INIT_RAM_ADDR       CFG_IMMR
#define CFG_INIT_RAM_END        0x2000  /* End of used area in DPRAM    */
#define CFG_GBL_DATA_SIZE       128     /* size in bytes reserved for
initial data */
#define CFG_GBL_DATA_OFFSET     (CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE)
#define CFG_INIT_SP_OFFSET      CFG_GBL_DATA_OFFSET

      does cpu_init_f() in cpu_init.c calculate the address of gd pointer
wrongly?

        /* Pointer is writable since we allocated a register for it */
        gd = (gd_t *) (CFG_INIT_RAM_ADDR + CFG_GBL_DATA_OFFSET);

      Shouldn't it be:

        /* Pointer is writable since we allocated a register for it */
        gd = (gd_t *) (CFG_GBL_DATA_OFFSET);

      ???
      Am I missing something..?

Regards,
TEH






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