diff options
Diffstat (limited to 'board')
| -rw-r--r-- | board/canmb/Makefile | 47 | ||||
| -rw-r--r-- | board/canmb/canmb.c | 103 | ||||
| -rw-r--r-- | board/canmb/config.mk | 39 | ||||
| -rw-r--r-- | board/canmb/u-boot.lds | 122 |
4 files changed, 311 insertions, 0 deletions
diff --git a/board/canmb/Makefile b/board/canmb/Makefile new file mode 100644 index 0000000..607833f --- /dev/null +++ b/board/canmb/Makefile @@ -0,0 +1,47 @@ +# +# (C) Copyright 2005 +# Wolfgang Denk, DENX Software Engineering, wd@denx.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 $(TOPDIR)/config.mk + +LIB = lib$(BOARD).a + +OBJS := $(BOARD).o +#../common/flash.o ../common/vpd.o ../common/am79c874.o + +$(LIB): $(OBJS) $(SOBJS) + $(AR) crv $@ $(OBJS) + +clean: + rm -f $(SOBJS) $(OBJS) + +distclean: clean + rm -f $(LIB) core *.bak .depend + +######################################################################### + +.depend: Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c) + $(CC) -M $(CPPFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@ + +-include .depend + +######################################################################### diff --git a/board/canmb/canmb.c b/board/canmb/canmb.c new file mode 100644 index 0000000..172fcd7 --- /dev/null +++ b/board/canmb/canmb.c @@ -0,0 +1,103 @@ +/* + * (C) Copyright 2005 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * (C) Copyright 2003 + * Reinhard Meyer, EMK Elektronik GmbH, r.meyer@emk-elektronik.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 <mpc5xxx.h> +#include <pci.h> + +/***************************************************************************** + * initialize SDRAM/DDRAM controller. + * TBD: get data from I2C EEPROM + *****************************************************************************/ +long int initdram (int board_type) +{ + ulong dramsize = 0; +#ifndef CFG_RAMBOOT +#if 0 + ulong t; + ulong tap_del; +#endif + + #define MODE_EN 0x80000000 + #define SOFT_PRE 2 + #define SOFT_REF 4 + + /* configure SDRAM start/end */ + *(vu_long *)MPC5XXX_SDRAM_CS0CFG = (CFG_SDRAM_BASE & 0xFFF00000) | CFG_DRAM_RAM_SIZE; + *(vu_long *)MPC5XXX_SDRAM_CS1CFG = 0x8000000; + + /* setup config registers */ + *(vu_long *)MPC5XXX_SDRAM_CONFIG1 = CFG_DRAM_CONFIG1; + *(vu_long *)MPC5XXX_SDRAM_CONFIG2 = CFG_DRAM_CONFIG2; + + /* unlock mode register */ + *(vu_long *)MPC5XXX_SDRAM_CTRL = CFG_DRAM_CONTROL | MODE_EN; + /* precharge all banks */ + *(vu_long *)MPC5XXX_SDRAM_CTRL = CFG_DRAM_CONTROL | MODE_EN | SOFT_PRE; +#ifdef CFG_DRAM_DDR + /* set extended mode register */ + *(vu_short *)MPC5XXX_SDRAM_MODE = CFG_DRAM_EMODE; +#endif + /* set mode register */ + *(vu_short *)MPC5XXX_SDRAM_MODE = CFG_DRAM_MODE | 0x0400; + /* precharge all banks */ + *(vu_long *)MPC5XXX_SDRAM_CTRL = CFG_DRAM_CONTROL | MODE_EN | SOFT_PRE; + /* auto refresh */ + *(vu_long *)MPC5XXX_SDRAM_CTRL = CFG_DRAM_CONTROL | MODE_EN | SOFT_REF; + /* set mode register */ + *(vu_short *)MPC5XXX_SDRAM_MODE = CFG_DRAM_MODE; + /* normal operation */ + *(vu_long *)MPC5XXX_SDRAM_CTRL = CFG_DRAM_CONTROL; + /* write default TAP delay */ + *(vu_long *)MPC5XXX_CDM_PORCFG = CFG_DRAM_TAP_DEL << 24; + +#endif /* CFG_RAMBOOT */ + + dramsize = ((1 << (*(vu_long *)MPC5XXX_SDRAM_CS0CFG - 0x13)) << 20) + + ((1 << (*(vu_long *)MPC5XXX_SDRAM_CS1CFG - 0x13)) << 20); + + /* return total ram size */ + return dramsize; +} + +/***************************************************************************** + * print board identification + *****************************************************************************/ +int checkboard (void) +{ + puts ("Board: CANMB\n"); + return 0; +} + +int board_early_init_r (void) +{ + *(vu_long *)MPC5XXX_BOOTCS_CFG &= ~0x1; /* clear RO */ + *(vu_long *)MPC5XXX_BOOTCS_START = + *(vu_long *)MPC5XXX_CS0_START = START_REG(CFG_FLASH_BASE); + *(vu_long *)MPC5XXX_BOOTCS_STOP = + *(vu_long *)MPC5XXX_CS0_STOP = STOP_REG(CFG_FLASH_BASE, CFG_FLASH_SIZE); + return 0; +} diff --git a/board/canmb/config.mk b/board/canmb/config.mk new file mode 100644 index 0000000..a163b34 --- /dev/null +++ b/board/canmb/config.mk @@ -0,0 +1,39 @@ +# +# (C) Copyright 2005 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# (C) Copyright 2003 +# Reinhard Meyer, EMK Elektronik GmbH, r.meyer@emk-elektronik.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 +# + +# +# CANMB board +# +# allowed and functional TEXT_BASE values: +# +# 0xfe000000 low boot at 0x00000100 (default board setting) +# 0x00100000 RAM load and test +# + +TEXT_BASE = 0xFE000000 +#TEXT_BASE = 0x00100000 + +PLATFORM_CPPFLAGS += -DTEXT_BASE=$(TEXT_BASE) -I$(TOPDIR)/board diff --git a/board/canmb/u-boot.lds b/board/canmb/u-boot.lds new file mode 100644 index 0000000..7c52b04 --- /dev/null +++ b/board/canmb/u-boot.lds @@ -0,0 +1,122 @@ +/* + * (C) Copyright 2005 + * Wolfgang Denk, DENX Software Engineering, wd@denx.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 + */ + +OUTPUT_ARCH(powerpc) +SEARCH_DIR(/lib); SEARCH_DIR(/usr/lib); SEARCH_DIR(/usr/local/lib); SEARCH_DIR(/usr/local/powerpc-any-elf/lib); +/* Do we need any of these for elf? + __DYNAMIC = 0; */ +SECTIONS +{ + /* Read-only sections, merged into text segment: */ + . = + SIZEOF_HEADERS; + .interp : { *(.interp) } + .hash : { *(.hash) } + .dynsym : { *(.dynsym) } + .dynstr : { *(.dynstr) } + .rel.text : { *(.rel.text) } + .rela.text : { *(.rela.text) } + .rel.data : { *(.rel.data) } + .rela.data : { *(.rela.data) } + .rel.rodata : { *(.rel.rodata) } + .rela.rodata : { *(.rela.rodata) } + .rel.got : { *(.rel.got) } + .rela.got : { *(.rela.got) } + .rel.ctors : { *(.rel.ctors) } + .rela.ctors : { *(.rela.ctors) } + .rel.dtors : { *(.rel.dtors) } + .rela.dtors : { *(.rela.dtors) } + .rel.bss : { *(.rel.bss) } + .rela.bss : { *(.rela.bss) } + .rel.plt : { *(.rel.plt) } + .rela.plt : { *(.rela.plt) } + .init : { *(.init) } + .plt : { *(.plt) } + .text : + { + cpu/mpc5xxx/start.o (.text) + *(.text) + *(.fixup) + *(.got1) + . = ALIGN(16); + *(.rodata) + *(.rodata1) + *(.rodata.str1.4) + } + .fini : { *(.fini) } =0 + .ctors : { *(.ctors) } + .dtors : { *(.dtors) } + + /* Read-write section, merged into data segment: */ + . = (. + 0x0FFF) & 0xFFFFF000; + _erotext = .; + PROVIDE (erotext = .); + .reloc : + { + *(.got) + _GOT2_TABLE_ = .; + *(.got2) + _FIXUP_TABLE_ = .; + *(.fixup) + } + __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >> 2; + __fixup_entries = (. - _FIXUP_TABLE_) >> 2; + + .data : + { + *(.data) + *(.data1) + *(.sdata) + *(.sdata2) + *(.dynamic) + CONSTRUCTORS + } + _edata = .; + PROVIDE (edata = .); + + __u_boot_cmd_start = .; + .u_boot_cmd : { *(.u_boot_cmd) } + __u_boot_cmd_end = .; + + + __start___ex_table = .; + __ex_table : { *(__ex_table) } + __stop___ex_table = .; + + . = ALIGN(4096); + __init_begin = .; + .text.init : { *(.text.init) } + .data.init : { *(.data.init) } + . = ALIGN(4096); + __init_end = .; + + __bss_start = .; + .bss : + { + *(.sbss) *(.scommon) + *(.dynbss) + *(.bss) + *(COMMON) + } + _end = . ; + PROVIDE (end = .); +} |