Hello everybody,
I'm trying to port to viper board i have written the following lines and caled it viper.c also i have modified the flash.c code. i've modified fads.h config file for viper now i have some questions what is these OR_AM, PRELIM and REMAP keys how can obtain these values i have obtained my values from MCUinit file
#include <common.h> #include <mpc8xx.h>
static const uint sdram_table[]={ /* single read (offset 0x00 in upm ram) */ 0x1f07fc04, 0xe0aefc04, 0x10adfc04, 0xe0bbbc00, 0x10f77c44, 0xf3fffc07, 0xfffffc04, 0xfffffc04, /* burst read (offset 0x08 in upm ram) */ 0x1f07fc04, 0xe0aefc04, 0x10adfc04, 0xf0affc00, 0xf0affc00, 0xf0affc00, 0xf0affc00, 0x10a77c44, 0xf7bffc47, 0xfffffc35, 0xfffffc34, 0xfffffc35, 0xfffffc35, 0x1ff77c35, 0xfffffc34, 0x1fb57c35, /* single write (offset 0x18 in upm ram) */ 0x1f27fc04, 0xe0aebc04, 0x00b93c00, 0x13f77c47, 0xfffdfc04, 0xfffffc04, 0xfffffc04, 0xfffffc04, /* burst write (offset 0x20 in upm ram) */ 0x1f07fc04, 0xeeaebc00, 0x10ad7c00, 0xf0affc00, 0xf0affc00, 0xe0abbc00, 0x1fb77c47, 0xfffffc04, 0xfffffc04, 0xfffffc04, 0xfffffc04, 0xfffffc04, 0xfffffc04, 0xfffffc04, 0xfffffc04, 0xfffffc04, /* refresh (offset 0x30 in upm ram) */ 0x1ff5fcb4, 0xfffffc04, 0xfffffc04, 0xfffffc04, 0xfffffc84, 0xfffffc07, 0xfffffc04, 0xfffffc04, 0xfffffc04, 0xfffffc04, 0xfffffc04, 0xfffffc04, /* exception (offset 0x3C in upm ram) */ 0xfffffc07, 0xfffffc04, 0xfffffc04, 0xfffffc04, };
int checkboard (void) {
puts ("BOARD : VIPER");
}
int initsdram(uint base, uint noMbytes){
volatile immap_t *immap = (immap_t *)CFG_IMMR; volatile memctl8xx_t *memctl = immap->im_memctl;
upmconfig (UPMA, (uint *)sdram_table,sizeof(sdram_table)/sizeof(uint));
memctl->memc_mptpr = 0x0200; memctl->memc_mamr = 0x5e802114; memctl->memc_mbmr = 0x00001000; memctl->memc_or0 = 0xfff007f4; memctl->memc_br0 = 0x00000401; memctl->memc_or1 = 0xff800e00; memctl->memc_br1 = 0x30000081; memctl->memc_or2 = 0xffff8730; memctl->memc_br2 = 0x40100801; memctl->memc_or3 = 0xffff87fc; memctl->memc_br3 = 0x40200801; memctl->memc_or4 = 0xffff8720; memctl->memc_br4 = 0x50000800; memctl->memc_or5 = 0xffff8708; memctl->memc_br5 = 0x40000800; memctl->memc_or6 = 0xfffe0108; memctl->memc_br6 = 0x00300000; memctl->memc_or7 = 0xfffe0008; memctl->memc_br7 = 0x00400000;
return 0;
}
Yiğit CAN Karel Electronics Corp. yigit.can@karel.com.tr