/* * (C) Copyright 2002 ELTEC Elektronik AG * Frank Gottschling <fgottschling@eltec.de> * * 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 <command.h> #include <mpc106.h> #include <video_fb.h> DECLARE_GLOBAL_DATA_PTR; /* ------------------------------------------------------------------------- */ int checkboard (void) { puts ("Board: ELTEC PowerPC\n"); return (0); } /* ------------------------------------------------------------------------- */ int checkflash (void) { /* TODO */ printf ("Test not implemented !\n"); return (0); } /* ------------------------------------------------------------------------- */ static unsigned int mpc106_read_cfg_dword (unsigned int reg) { unsigned int reg_addr = MPC106_REG | (reg & 0xFFFFFFFC); out32r (MPC106_REG_ADDR, reg_addr); return (in32r (MPC106_REG_DATA | (reg & 0x3))); } /* ------------------------------------------------------------------------- */ long int dram_size (int board_type) { /* * No actual initialisation to do - done when setting up * PICRs MCCRs ME/SARs etc in asm_init.S. */ register unsigned long i, msar1, mear1, memSize; #if defined(CFG_MEMTEST) register unsigned long reg; printf ("Testing DRAM\n"); /* write each mem addr with it's address */ for (reg = CFG_MEMTEST_START; reg < CFG_MEMTEST_END; reg += 4) *reg = reg; for (reg = CFG_MEMTEST_START; reg < CFG_MEMTEST_END; reg += 4) { if (*reg != reg) return -1; } #endif /* * Since MPC107 memory controller chip has already been set to * control all memory, just read and interpret its memory boundery register. */ memSize = 0; msar1 = mpc106_read_cfg_dword (MPC106_MSAR1); mear1 = mpc106_read_cfg_dword (MPC106_MEAR1); i = mpc106_read_cfg_dword (MPC106_MBER) & 0xf; do { if (i & 0x01) /* is bank enabled ? */ memSize += (mear1 & 0xff) - (msar1 & 0xff) + 1; msar1 >>= 8; mear1 >>= 8; i >>= 1; } while (i); return (memSize * 0x100000); } /* ------------------------------------------------------------------------- */ long int initdram (int board_type) { return dram_size (board_type); } /* ------------------------------------------------------------------------- */ /* * The BAB 911 can be reset by writing bit 0 of the Processor Initialization * Register PI in the MPC 107 (at offset 0x41090 of the Embedded Utilities * Memory Block). */ int do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) { out8 (MPC107_EUMB_PI, 1); return (0); } /* ------------------------------------------------------------------------- */ #if defined(CONFIG_WATCHDOG) /* * Since the 7xx CPUs don't have an internal watchdog, this function is * board specific. */ void watchdog_reset (void) { } #endif /* CONFIG_WATCHDOG */ /* ------------------------------------------------------------------------- */ void after_reloc (ulong dest_addr) { /* * Jump to the main U-Boot board init code */ board_init_r ((gd_t *)gd, dest_addr); } /* ------------------------------------------------------------------------- */ #ifdef CONFIG_CONSOLE_EXTRA_INFO extern GraphicDevice smi; void video_get_info_str (int line_number, char *info) { /* init video info strings for graphic console */ switch (line_number) { case 1: sprintf (info, " MPC7xx V%d.%d at %d / %d MHz", (get_pvr () >> 8) & 0xFF, get_pvr () & 0xFF, 400, 100); return; case 2: sprintf (info, " ELTEC ELPPC with %ld MB DRAM and %ld MB FLASH", dram_size (0) / 0x100000, flash_init () / 0x100000); return; case 3: sprintf (info, " %s", smi.modeIdent); return; } /* no more info lines */ *info = 0; return; } #endif