diff options
Diffstat (limited to 'board/o2dnt/o2dnt.c')
| -rw-r--r-- | board/o2dnt/o2dnt.c | 182 |
1 files changed, 0 insertions, 182 deletions
diff --git a/board/o2dnt/o2dnt.c b/board/o2dnt/o2dnt.c deleted file mode 100644 index 81a27002f4..0000000000 --- a/board/o2dnt/o2dnt.c +++ /dev/null @@ -1,182 +0,0 @@ -/* - * (C) Copyright 2005 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * (C) Copyright 2004 - * Mark Jonas, Freescale Semiconductor, mark.jonas@motorola.com. - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -#include <common.h> -#include <mpc5xxx.h> -#include <pci.h> - -#define SDRAM_MODE 0x00CD0000 -#define SDRAM_CONTROL 0x504F0000 -#define SDRAM_CONFIG1 0xD2322800 -#define SDRAM_CONFIG2 0x8AD70000 - -static void sdram_start (int hi_addr) -{ - long hi_addr_bit = hi_addr ? 0x01000000 : 0; - - /* unlock mode register */ - *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000000 | hi_addr_bit; - __asm__ volatile ("sync"); - - /* precharge all banks */ - *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000002 | hi_addr_bit; - __asm__ volatile ("sync"); - - /* precharge all banks */ - *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000002 | hi_addr_bit; - __asm__ volatile ("sync"); - - /* auto refresh */ - *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000004 | hi_addr_bit; - __asm__ volatile ("sync"); - - /* set mode register */ - *(vu_long *)MPC5XXX_SDRAM_MODE = SDRAM_MODE; - __asm__ volatile ("sync"); - - /* normal operation */ - *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | hi_addr_bit; - __asm__ volatile ("sync"); -} - -/* - * ATTENTION: Although partially referenced initdram does NOT make real use - * use of CFG_SDRAM_BASE. The code does not work if CFG_SDRAM_BASE - * is something else than 0x00000000. - */ -long int initdram (int board_type) -{ - ulong dramsize = 0; - ulong dramsize2 = 0; - ulong test1, test2; - - /* setup SDRAM chip selects */ - *(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0x0000001e;/* 2G at 0x0 */ - *(vu_long *)MPC5XXX_SDRAM_CS1CFG = 0x80000000;/* disabled */ - __asm__ volatile ("sync"); - - /* setup config registers */ - *(vu_long *)MPC5XXX_SDRAM_CONFIG1 = SDRAM_CONFIG1; - *(vu_long *)MPC5XXX_SDRAM_CONFIG2 = SDRAM_CONFIG2; - __asm__ volatile ("sync"); - - /* find RAM size using SDRAM CS0 only */ - sdram_start(0); - test1 = get_ram_size((long *)CFG_SDRAM_BASE, 0x80000000); - sdram_start(1); - test2 = get_ram_size((long *)CFG_SDRAM_BASE, 0x80000000); - if (test1 > test2) { - sdram_start(0); - dramsize = test1; - } else { - dramsize = test2; - } - - /* memory smaller than 1MB is impossible */ - if (dramsize < (1 << 20)) { - dramsize = 0; - } - - /* set SDRAM CS0 size according to the amount of RAM found */ - if (dramsize > 0) - *(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0x13 + __builtin_ffs(dramsize >> 20) - 1; - else - *(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0; /* disabled */ - - /* let SDRAM CS1 start right after CS0 */ - *(vu_long *)MPC5XXX_SDRAM_CS1CFG = dramsize + 0x0000001e;/* 2G */ - - /* find RAM size using SDRAM CS1 only */ - if (!dramsize) - sdram_start(0); - - test2 = test1 = get_ram_size((long *)(CFG_SDRAM_BASE + dramsize), 0x80000000); - - if (!dramsize) { - sdram_start(1); - test2 = get_ram_size((long *)(CFG_SDRAM_BASE + dramsize), 0x80000000); - } - - if (test1 > test2) { - sdram_start(0); - dramsize2 = test1; - } else { - dramsize2 = test2; - } - - /* memory smaller than 1MB is impossible */ - if (dramsize2 < (1 << 20)) - dramsize2 = 0; - - /* set SDRAM CS1 size according to the amount of RAM found */ - if (dramsize2 > 0) { - *(vu_long *)MPC5XXX_SDRAM_CS1CFG = dramsize - | (0x13 + __builtin_ffs(dramsize2 >> 20) - 1); - } else { - *(vu_long *)MPC5XXX_SDRAM_CS1CFG = dramsize; /* disabled */ - } - - return dramsize + dramsize2; -} - -int checkboard (void) -{ - puts ("Board: O2DNT\n"); - return 0; -} - -void flash_preinit(void) -{ - /* - * Now, when we are in RAM, enable flash write - * access for detection process. - * Note that CS_BOOT cannot be cleared when - * executing in flash. - */ - *(vu_long *)MPC5XXX_BOOTCS_CFG &= ~0x1; /* clear RO */ -} - -void flash_afterinit(ulong size) -{ - if (size == 0x800000) { /* adjust mapping */ - *(vu_long *)MPC5XXX_BOOTCS_START = *(vu_long *)MPC5XXX_CS0_START = - START_REG(CFG_BOOTCS_START | size); - - *(vu_long *)MPC5XXX_BOOTCS_STOP = *(vu_long *)MPC5XXX_CS0_STOP = - STOP_REG(CFG_BOOTCS_START | size, size); - } -} - -#ifdef CONFIG_PCI -static struct pci_controller hose; - -extern void pci_mpc5xxx_init(struct pci_controller *); - -void pci_init_board(void) -{ - pci_mpc5xxx_init(&hose); -} -#endif |