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Diffstat (limited to 'board/eltec/elppc/elppc.c')
| -rw-r--r-- | board/eltec/elppc/elppc.c | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/board/eltec/elppc/elppc.c b/board/eltec/elppc/elppc.c new file mode 100644 index 0000000..97b70a4 --- /dev/null +++ b/board/eltec/elppc/elppc.c @@ -0,0 +1,189 @@ +/* + * (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> + +/* ------------------------------------------------------------------------- */ + +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). + */ +void do_reset (cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[]) +{ + out8(MPC107_EUMB_PI, 1); +} + +/* ------------------------------------------------------------------------- */ + +#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) +{ + DECLARE_GLOBAL_DATA_PTR; + + /* + * Jump to the main U-Boot board init code + */ + board_init_r(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 + + + + + + + + + + |