diff options
Diffstat (limited to 'u-boot/board/freescale/m5275evb')
| -rw-r--r-- | u-boot/board/freescale/m5275evb/Makefile | 44 | ||||
| -rw-r--r-- | u-boot/board/freescale/m5275evb/config.mk | 25 | ||||
| -rw-r--r-- | u-boot/board/freescale/m5275evb/m5275evb.c | 112 | ||||
| -rw-r--r-- | u-boot/board/freescale/m5275evb/u-boot.lds | 139 |
4 files changed, 320 insertions, 0 deletions
diff --git a/u-boot/board/freescale/m5275evb/Makefile b/u-boot/board/freescale/m5275evb/Makefile new file mode 100644 index 0000000..c454d76 --- /dev/null +++ b/u-boot/board/freescale/m5275evb/Makefile @@ -0,0 +1,44 @@ +# +# (C) Copyright 2000-2003 +# 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 = $(obj)lib$(BOARD).o + +COBJS = $(BOARD).o + +SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(COBJS)) +SOBJS := $(addprefix $(obj),$(SOBJS)) + +$(LIB): $(obj).depend $(OBJS) + $(call cmd_link_o_target, $(OBJS)) + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/u-boot/board/freescale/m5275evb/config.mk b/u-boot/board/freescale/m5275evb/config.mk new file mode 100644 index 0000000..5b8c608 --- /dev/null +++ b/u-boot/board/freescale/m5275evb/config.mk @@ -0,0 +1,25 @@ +# +# (C) Copyright 2000-2003 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# Coldfire contribution by Bernhard Kuhn <bkuhn@metrowerks.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 +# + +CONFIG_SYS_TEXT_BASE = 0xffe00000 diff --git a/u-boot/board/freescale/m5275evb/m5275evb.c b/u-boot/board/freescale/m5275evb/m5275evb.c new file mode 100644 index 0000000..35c9b20 --- /dev/null +++ b/u-boot/board/freescale/m5275evb/m5275evb.c @@ -0,0 +1,112 @@ +/* + * (C) Copyright 2000-2003 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * Copyright (C) 2005-2008 Arthur Shipkowski (art@videon-central.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 <asm/immap.h> + +#define PERIOD 13 /* system bus period in ns */ +#define SDRAM_TREFI 7800 /* in ns */ + +int checkboard(void) +{ + puts("Board: "); + puts("Freescale MCF5275 EVB\n"); + return 0; +}; + +phys_size_t initdram(int board_type) +{ + volatile sdramctrl_t *sdp = (sdramctrl_t *)(MMAP_SDRAM); + volatile gpio_t *gpio_reg = (gpio_t *)(MMAP_GPIO); + + gpio_reg->par_sdram = 0x3FF; /* Enable SDRAM */ + + /* Set up chip select */ + sdp->sdbar0 = CONFIG_SYS_SDRAM_BASE; + sdp->sdbmr0 = MCF_SDRAMC_SDMRn_BAM_32M | MCF_SDRAMC_SDMRn_V; + + /* Set up timing */ + sdp->sdcfg1 = 0x83711630; + sdp->sdcfg2 = 0x46770000; + + /* Enable clock */ + sdp->sdcr = MCF_SDRAMC_SDCR_MODE_EN | MCF_SDRAMC_SDCR_CKE; + + /* Set precharge */ + sdp->sdcr |= MCF_SDRAMC_SDCR_IPALL; + + /* Dummy write to start SDRAM */ + *((volatile unsigned long *)CONFIG_SYS_SDRAM_BASE) = 0xa5a59696; + + /* Send LEMR */ + sdp->sdmr = MCF_SDRAMC_SDMR_BNKAD_LEMR + | MCF_SDRAMC_SDMR_AD(0x0) + | MCF_SDRAMC_SDMR_CMD; + *((volatile unsigned long *)CONFIG_SYS_SDRAM_BASE) = 0xa5a59696; + + /* Send LMR */ + sdp->sdmr = 0x058d0000; + *((volatile unsigned long *)CONFIG_SYS_SDRAM_BASE) = 0xa5a59696; + + /* Stop sending commands */ + sdp->sdmr &= ~(MCF_SDRAMC_SDMR_CMD); + + /* Set precharge */ + sdp->sdcr |= MCF_SDRAMC_SDCR_IPALL; + *((volatile unsigned long *)CONFIG_SYS_SDRAM_BASE) = 0xa5a59696; + + /* Stop manual precharge, send 2 IREF */ + sdp->sdcr &= ~(MCF_SDRAMC_SDCR_IPALL); + sdp->sdcr |= MCF_SDRAMC_SDCR_IREF; + *((volatile unsigned long *)CONFIG_SYS_SDRAM_BASE) = 0xa5a59696; + *((volatile unsigned long *)CONFIG_SYS_SDRAM_BASE) = 0xa5a59696; + + /* Write mode register, clear reset DLL */ + sdp->sdmr = 0x018d0000; + *((volatile unsigned long *)CONFIG_SYS_SDRAM_BASE) = 0xa5a59696; + + /* Stop sending commands */ + sdp->sdmr &= ~(MCF_SDRAMC_SDMR_CMD); + sdp->sdcr &= ~(MCF_SDRAMC_SDCR_MODE_EN); + + /* Turn on auto refresh, lock SDMR */ + sdp->sdcr = + MCF_SDRAMC_SDCR_CKE + | MCF_SDRAMC_SDCR_REF + | MCF_SDRAMC_SDCR_MUX(1) + /* 1 added to round up */ + | MCF_SDRAMC_SDCR_RCNT((SDRAM_TREFI/(PERIOD*64)) - 1 + 1) + | MCF_SDRAMC_SDCR_DQS_OE(0x3); + + return CONFIG_SYS_SDRAM_SIZE * 1024 * 1024; +}; + +int testdram(void) +{ + /* TODO: XXX XXX XXX */ + printf("DRAM test not implemented!\n"); + + return (0); +} diff --git a/u-boot/board/freescale/m5275evb/u-boot.lds b/u-boot/board/freescale/m5275evb/u-boot.lds new file mode 100644 index 0000000..cd17b0a --- /dev/null +++ b/u-boot/board/freescale/m5275evb/u-boot.lds @@ -0,0 +1,139 @@ +/* + * (C) Copyright 2000-2003 + * 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(m68k) +/* 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 : + { + /* WARNING - the following is hand-optimized to fit within */ + /* the sector layout of our flash chips! XXX FIXME XXX */ + + arch/m68k/cpu/mcf52x2/start.o (.text) + common/dlmalloc.o (.text) + lib/string.o (.text) + lib/zlib.o (.text) + + . = DEFINED(env_offset) ? env_offset : .; + common/env_embedded.o(.text) + + *(.text) + *(.fixup) + *(.got1) + } + _etext = .; + PROVIDE (etext = .); + .rodata : + { + *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) + } + .fini : { *(.fini) } =0 + .ctors : { *(.ctors) } + .dtors : { *(.dtors) } + + /* Read-write section, merged into data segment: */ + . = (. + 0x00FF) & 0xFFFFFF00; + _erotext = .; + PROVIDE (erotext = .); + .reloc : + { + __got_start = .; + *(.got) + __got_end = .; + _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(256); + __init_begin = .; + .text.init : { *(.text.init) } + .data.init : { *(.data.init) } + . = ALIGN(256); + __init_end = .; + + __bss_start = .; + .bss : + { + _sbss = .; + *(.sbss) *(.scommon) + *(.dynbss) + *(.bss) + *(COMMON) + . = ALIGN(4); + _ebss = .; + } + _end = . ; + PROVIDE (end = .); +} |