/* * (C) Copyright 2003-2006 * 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> #include <asm/processor.h> /* Two MT48LC8M32B2 for 32 MB */ /* #include "mt48lc8m32b2-6-7.h" */ /* One MT48LC16M32S2 for 64 MB */ /* #include "mt48lc16m32s2-75.h" */ #if defined (CONFIG_MCC200_SDRAM) #include "mt48lc16m16a2-75.h" #else #include "mt46v16m16-75.h" #endif DECLARE_GLOBAL_DATA_PTR; extern flash_info_t flash_info[]; /* FLASH chips info */ extern int do_auto_update(void); ulong flash_get_size (ulong base, int banknum); #ifndef CONFIG_SYS_RAMBOOT 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"); #if SDRAM_DDR /* set mode register: extended mode */ *(vu_long *)MPC5XXX_SDRAM_MODE = SDRAM_EMODE; __asm__ volatile ("sync"); /* set mode register: reset DLL */ *(vu_long *)MPC5XXX_SDRAM_MODE = SDRAM_MODE | 0x04000000; __asm__ volatile ("sync"); #endif /* 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"); udelay(10); } #endif /* * ATTENTION: Although partially referenced initdram does NOT make real use * use of CONFIG_SYS_SDRAM_BASE. The code does not work if CONFIG_SYS_SDRAM_BASE * is something else than 0x00000000. */ phys_size_t initdram (int board_type) { ulong dramsize = 0; ulong dramsize2 = 0; uint svr, pvr; #ifndef CONFIG_SYS_RAMBOOT 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"); #if SDRAM_DDR /* set tap delay */ *(vu_long *)MPC5XXX_CDM_PORCFG = SDRAM_TAPDELAY; __asm__ volatile ("sync"); #endif /* find RAM size using SDRAM CS0 only */ sdram_start(0); test1 = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE, 0x80000000); sdram_start(1); test2 = get_ram_size((long *)CONFIG_SYS_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 *)(CONFIG_SYS_SDRAM_BASE + dramsize), 0x80000000); if (!dramsize) { sdram_start(1); test2 = get_ram_size((long *)(CONFIG_SYS_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 */ } #else /* CONFIG_SYS_RAMBOOT */ /* retrieve size of memory connected to SDRAM CS0 */ dramsize = *(vu_long *)MPC5XXX_SDRAM_CS0CFG & 0xFF; if (dramsize >= 0x13) { dramsize = (1 << (dramsize - 0x13)) << 20; } else { dramsize = 0; } /* retrieve size of memory connected to SDRAM CS1 */ dramsize2 = *(vu_long *)MPC5XXX_SDRAM_CS1CFG & 0xFF; if (dramsize2 >= 0x13) { dramsize2 = (1 << (dramsize2 - 0x13)) << 20; } else { dramsize2 = 0; } #endif /* CONFIG_SYS_RAMBOOT */ /* * On MPC5200B we need to set the special configuration delay in the * DDR controller. Please refer to Freescale's AN3221 "MPC5200B SDRAM * Initialization and Configuration", 3.3.1 SDelay--MBAR + 0x0190: * * "The SDelay should be written to a value of 0x00000004. It is * required to account for changes caused by normal wafer processing * parameters." */ svr = get_svr(); pvr = get_pvr(); if ((SVR_MJREV(svr) >= 2) && (PVR_MAJ(pvr) == 1) && (PVR_MIN(pvr) == 4)) { *(vu_long *)MPC5XXX_SDRAM_SDELAY = 0x04; __asm__ volatile ("sync"); } return dramsize + dramsize2; } int checkboard (void) { #if defined(CONFIG_PRS200) puts ("Board: PRS200\n"); #else puts ("Board: MCC200\n"); #endif return 0; } int misc_init_r (void) { ulong flash_sup_end, snum; /* * Adjust flash start and offset to detected values */ gd->bd->bi_flashstart = 0 - gd->bd->bi_flashsize; gd->bd->bi_flashoffset = 0; /* * Check if boot FLASH isn't max size */ if (gd->bd->bi_flashsize < (0 - CONFIG_SYS_FLASH_BASE)) { /* adjust mapping */ *(vu_long *)MPC5XXX_BOOTCS_START = *(vu_long *)MPC5XXX_CS0_START = START_REG(gd->bd->bi_flashstart); *(vu_long *)MPC5XXX_BOOTCS_STOP = *(vu_long *)MPC5XXX_CS0_STOP = STOP_REG(gd->bd->bi_flashstart, gd->bd->bi_flashsize); /* * Re-check to get correct base address */ flash_get_size(gd->bd->bi_flashstart, CONFIG_SYS_MAX_FLASH_BANKS - 1); /* * Re-do flash protection upon new addresses */ flash_protect (FLAG_PROTECT_CLEAR, gd->bd->bi_flashstart, 0xffffffff, &flash_info[CONFIG_SYS_MAX_FLASH_BANKS - 1]); /* Monitor protection ON by default */ flash_protect (FLAG_PROTECT_SET, CONFIG_SYS_MONITOR_BASE, CONFIG_SYS_MONITOR_BASE + monitor_flash_len - 1, &flash_info[CONFIG_SYS_MAX_FLASH_BANKS - 1]); /* Environment protection ON by default */ flash_protect (FLAG_PROTECT_SET, CONFIG_ENV_ADDR, CONFIG_ENV_ADDR + CONFIG_ENV_SECT_SIZE - 1, &flash_info[CONFIG_SYS_MAX_FLASH_BANKS - 1]); /* Redundant environment protection ON by default */ flash_protect (FLAG_PROTECT_SET, CONFIG_ENV_ADDR_REDUND, CONFIG_ENV_ADDR_REDUND + CONFIG_ENV_SECT_SIZE - 1, &flash_info[CONFIG_SYS_MAX_FLASH_BANKS - 1]); } if (gd->bd->bi_flashsize > (32 << 20)) { /* Unprotect the upper bank of the Flash */ *(volatile int*)MPC5XXX_CS0_CFG |= (1 << 6); flash_protect (FLAG_PROTECT_CLEAR, flash_info[0].start[0] + flash_info[0].size / 2, (flash_info[0].start[0] - 1) + flash_info[0].size, &flash_info[0]); *(volatile int*)MPC5XXX_CS0_CFG &= ~(1 << 6); printf ("Warning: Only 32 of 64 MB of Flash are accessible from U-Boot\n"); flash_info[0].size = 32 << 20; for (snum = 0, flash_sup_end = gd->bd->bi_flashstart + (32<<20); flash_info[0].start[snum] < flash_sup_end; snum++); flash_info[0].sector_count = snum; } #ifdef CONFIG_AUTO_UPDATE do_auto_update(); #endif return (0); } #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 #if defined(CONFIG_CMD_IDE) && defined(CONFIG_IDE_RESET) void init_ide_reset (void) { debug ("init_ide_reset\n"); } void ide_set_reset (int idereset) { debug ("ide_reset(%d)\n", idereset); } #endif #if defined(CONFIG_CMD_DOC) void doc_init (void) { doc_probe (CONFIG_SYS_DOC_BASE); } #endif