diff options
| -rw-r--r-- | board/mpc8349itx/mpc8349itx.c | 88 |
1 files changed, 1 insertions, 87 deletions
diff --git a/board/mpc8349itx/mpc8349itx.c b/board/mpc8349itx/mpc8349itx.c index 0e372ab..72c47f4 100644 --- a/board/mpc8349itx/mpc8349itx.c +++ b/board/mpc8349itx/mpc8349itx.c @@ -134,88 +134,6 @@ volatile static struct pci_controller hose[] = { }; #endif /* CONFIG_PCI */ -/* If MPC8349E-mITX is soldered with SDRAM, then initialize it. */ - -void sdram_init(void) -{ - volatile immap_t *immap = (immap_t *) CFG_IMMR; - volatile lbus83xx_t *lbc = &immap->lbus; - -#if defined(CFG_BR2_PRELIM) \ - && defined(CFG_OR2_PRELIM) \ - && defined(CFG_LBLAWBAR2_PRELIM) \ - && defined(CFG_LBLAWAR2_PRELIM) \ - && !defined(CONFIG_COMPACT_FLASH) - - uint *sdram_addr = (uint *) CFG_LBC_SDRAM_BASE; - - puts("\n SDRAM on Local Bus: "); - print_size(CFG_LBC_SDRAM_SIZE * 1024 * 1024, "\n"); - - /* - * Setup SDRAM Base and Option Registers, already done in cpu_init.c - */ - - /*setup mtrpt, lsrt and lbcr for LB bus */ - lbc->lbcr = CFG_LBC_LBCR; - lbc->mrtpr = CFG_LBC_MRTPR; - lbc->lsrt = CFG_LBC_LSRT; - asm("sync"); - - /* - * Configure the SDRAM controller Machine Mode register. - */ - lbc->lsdmr = CFG_LBC_LSDMR_5; /* 0x40636733; normal operation */ - - lbc->lsdmr = CFG_LBC_LSDMR_1; /*0x68636733; precharge all the banks */ - asm("sync"); - *sdram_addr = 0xff; - udelay(100); - - lbc->lsdmr = CFG_LBC_LSDMR_2; /*0x48636733; auto refresh */ - asm("sync"); - *sdram_addr = 0xff; /*1 time*/ - udelay(100); - *sdram_addr = 0xff; /*2 times*/ - udelay(100); - *sdram_addr = 0xff; /*3 times*/ - udelay(100); - *sdram_addr = 0xff; /*4 times*/ - udelay(100); - *sdram_addr = 0xff; /*5 times*/ - udelay(100); - *sdram_addr = 0xff; /*6 times*/ - udelay(100); - *sdram_addr = 0xff; /*7 times*/ - udelay(100); - *sdram_addr = 0xff; /*8 times*/ - udelay(100); - - lbc->lsdmr = CFG_LBC_LSDMR_4; /*0x58636733;mode register write operation */ - asm("sync"); - *sdram_addr = 0xff; - udelay(100); - - lbc->lsdmr = CFG_LBC_LSDMR_5; /*0x40636733;normal operation */ - asm("sync"); - *sdram_addr = 0xff; - udelay(100); - -#else - puts("SDRAM on Local Bus is NOT available!\n"); - -#ifdef CFG_BR2_PRELIM - lbc->bank[2].br = CFG_BR2_PRELIM; - lbc->bank[2].or = CFG_OR2_PRELIM; -#endif - -#ifdef CFG_BR3_PRELIM - lbc->bank[3].br = CFG_BR3_PRELIM; - lbc->bank[3].or = CFG_OR3_PRELIM; -#endif -#endif -} - long int initdram(int board_type) { volatile immap_t *im = (immap_t *) CFG_IMMR; @@ -243,12 +161,8 @@ long int initdram(int board_type) ddr_enable_ecc(msize * 1048576); #endif - /* - * Initialize SDRAM if it is on local bus. - */ - sdram_init(); puts(" DDR RAM: "); - /* return total bus SDRAM size(bytes) -- DDR */ + /* return total bus RAM size(bytes) */ return msize * 1024 * 1024; } |