From 84c960ce6dbea55565a7891ff4fe87e08803e9cf Mon Sep 17 00:00:00 2001 From: Wolfgang Denk Date: Sun, 12 Mar 2006 23:17:31 +0100 Subject: Add support for EmbeddedPlanet EP88x boards Patch by Yuli Barcohen, 13 Jul 2005 --- board/ep88x/Makefile | 46 +++++++++++++++++ board/ep88x/config.mk | 27 ++++++++++ board/ep88x/ep88x.c | 133 +++++++++++++++++++++++++++++++++++++++++++++++++ board/ep88x/u-boot.lds | 122 +++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 328 insertions(+) create mode 100644 board/ep88x/Makefile create mode 100644 board/ep88x/config.mk create mode 100644 board/ep88x/ep88x.c create mode 100644 board/ep88x/u-boot.lds (limited to 'board/ep88x') diff --git a/board/ep88x/Makefile b/board/ep88x/Makefile new file mode 100644 index 000000000..9123a8026 --- /dev/null +++ b/board/ep88x/Makefile @@ -0,0 +1,46 @@ +# +# Copyright (C) 2004 Arabella Software Ltd. +# Yuli Barcohen +# +# 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 := $(BOARD).o + +$(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/ep88x/config.mk b/board/ep88x/config.mk new file mode 100644 index 000000000..72b326c32 --- /dev/null +++ b/board/ep88x/config.mk @@ -0,0 +1,27 @@ +# +# Copyright (C) 2005 Arabella Software Ltd. +# Yuli Barcohen +# +# 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 +# + +# +# Embedded Planet EP88x boards +# +TEXT_BASE = 0xFC000000 diff --git a/board/ep88x/ep88x.c b/board/ep88x/ep88x.c new file mode 100644 index 000000000..5f57f36bb --- /dev/null +++ b/board/ep88x/ep88x.c @@ -0,0 +1,133 @@ +/* + * Copyright (C) 2005 Arabella Software Ltd. + * Yuli Barcohen + * + * Support for Embedded Planet EP88x boards. + * Tested on EP88xC with MPC885 CPU, 64MB SDRAM and 16MB flash. + * + * 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 +#include + +/* + * SDRAM uses two Micron chips. + * Minimal CPU frequency is 40MHz. + */ +static uint sdram_table[] = { + /* Single read (offset 0x00 in UPM RAM) */ + 0xEFCBCC04, 0x0F37C804, 0x0EEEC004, 0x01B98404, + 0x1FF74C00, 0xFFFFCC05, 0xFFFFCC05, 0xFFFFCC05, + + /* Burst read (offset 0x08 in UPM RAM) */ + 0xEFCBCC04, 0x0F37C804, 0x0EEEC004, 0x00BDC404, + 0x00FFCC00, 0x00FFCC00, 0x01FB8C00, 0x1FF74C00, + 0xFFFFCC05, 0xFFFFCC05, 0xFFFFCC05, 0xFFFFCC05, + 0xFFFFCC05, 0xFFFFCC05, 0xFFFFCC05, 0xFFFFCC05, + + /* Single write (offset 0x18 in UPM RAM) */ + 0xEFCBCC04, 0x0F37C804, 0x0EEE8002, 0x01B90404, + 0x1FF74C05, 0xFFFFCC05, 0xFFFFCC05, 0xFFFFCC05, + + /* Burst write (offset 0x20 in UPM RAM) */ + 0xEFCBCC04, 0x0F37C804, 0x0EEE8000, 0x00BD4400, + 0x00FFCC00, 0x00FFCC02, 0x01FB8C04, 0x1FF74C05, + 0xFFFFCC05, 0xFFFFCC05, 0xFFFFCC05, 0xFFFFCC05, + 0xFFFFCC05, 0xFFFFCC05, 0xFFFFCC05, 0xFFFFCC05, + + /* Refresh (offset 0x30 in UPM RAM) */ + 0xEFFACC04, 0x0FF5CC04, 0x0FFFCC04, 0x1FFFCC04, + 0xFFFFCC05, 0xFFFFCC05, 0xEFFB8C34, 0x0FF74C34, + 0x0FFACCB4, 0x0FF5CC34, 0x0FFFC034, 0x0FFFC0B4, + + /* Exception (offset 0x3C in UPM RAM) */ + 0x0FEA8034, 0x1FB54034, 0xFFFFCC34, 0xFFFFCC05 +}; + +int board_early_init_f (void) +{ + vu_char *bcsr = (vu_char *)CFG_BCSR; + + bcsr[0] |= 0x0C; /* Turn the LEDs off */ + bcsr[2] |= 0x08; /* Enable flash WE# line - necessary for + flash detection by CFI driver + */ + +#if defined(CONFIG_8xx_CONS_SMC1) + bcsr[6] |= 0x10; /* Enables RS-232 transceiver */ +#endif +#if defined(CONFIG_8xx_CONS_SCC2) + bcsr[7] |= 0x10; /* Enables RS-232 transceiver */ +#endif +#ifdef CONFIG_ETHER_ON_FEC1 + bcsr[8] |= 0xC0; /* Enable Ethernet 1 PHY */ +#endif +#ifdef CONFIG_ETHER_ON_FEC2 + bcsr[8] |= 0x30; /* Enable Ethernet 2 PHY */ +#endif + + return 0; +} + +long int initdram (int board_type) +{ + long int msize; + volatile immap_t *immap = (volatile immap_t *)CFG_IMMR; + volatile memctl8xx_t *memctl = &immap->im_memctl; + + upmconfig(UPMA, sdram_table, sizeof(sdram_table) / sizeof(uint)); + + /* Configure SDRAM refresh */ + memctl->memc_mptpr = MPTPR_PTP_DIV2; /* BRGCLK/2 */ + + memctl->memc_mamr = (65 << 24) | CFG_MAMR; /* No refresh */ + udelay(100); + + /* Run MRS pattern from location 0x36 */ + memctl->memc_mar = 0x88; + memctl->memc_mcr = 0x80002236; + udelay(100); + + memctl->memc_mamr |= MAMR_PTAE; /* Enable refresh */ + memctl->memc_or1 = ~(CFG_SDRAM_MAX_SIZE - 1) | OR_CSNT_SAM; + memctl->memc_br1 = CFG_SDRAM_BASE | BR_PS_32 | BR_MS_UPMA | BR_V; + + msize = get_ram_size(CFG_SDRAM_BASE, CFG_SDRAM_MAX_SIZE); + memctl->memc_or1 |= ~(msize - 1); + + return msize; +} + +int checkboard( void ) +{ + vu_char *bcsr = (vu_char *)CFG_BCSR; + + puts("Board: "); + switch (bcsr[15]) { + case 0xE7: + puts("EP88xC 1.0"); + break; + default: + printf("unknown ID=%02X", bcsr[15]); + } + printf(" CPLD revision %d\n", bcsr[14]); + + return 0; +} diff --git a/board/ep88x/u-boot.lds b/board/ep88x/u-boot.lds new file mode 100644 index 000000000..1d2a7d764 --- /dev/null +++ b/board/ep88x/u-boot.lds @@ -0,0 +1,122 @@ +/* + * (C) Copyright 2001-2003 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * Modified by Yuli Barcohen + * + * 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) +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/mpc8xx/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 = .); +} +ENTRY(_start) -- cgit v1.2.3