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ppc4xx: Add 405GPr based MCU25 board specific files

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Signed-off-by: Niklaus Giger <niklaus.giger@netstal.com>
master
Niklaus Giger 17 years ago committed by Stefan Roese
parent 75a66dcdb3
commit 217d383e20
5 changed files with 499 additions and 0 deletions
  1. 51
      board/netstal/mcu25/Makefile
  2. 60
      board/netstal/mcu25/README.txt
  3. 29
      board/netstal/mcu25/config.mk
  4. 218
      board/netstal/mcu25/mcu25.c
  5. 141
      board/netstal/mcu25/u-boot.lds

51
board/netstal/mcu25/Makefile
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#
# (C) Copyright 2007-2008 Netstal Maschinen AG
# Niklaus Giger (ng@netstal.com)
#
# 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).a
# NOBJS : Netstal common objects
NOBJS = fixed_sdram.o nm_bsp.o
COBJS = $(BOARD).o
SOBJS =
SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) $(addprefix ../common/,$(NOBJS:.o=.c))
OBJS := $(addprefix $(obj),$(COBJS))
NOBJS := $(addprefix $(obj)../common/,$(NOBJS))
SOBJS := $(addprefix $(obj),$(SOBJS))
$(LIB): $(OBJS) $(SOBJS) $(NOBJS)
$(AR) $(ARFLAGS) $@ $(OBJS) $(SOBJS) $(NOBJS)
clean:
rm -f $(SOBJS) $(OBJS)
distclean: clean
rm -f $(LIB) core *.bak .depend
#########################################################################
# defines $(obj).depend target
include $(SRCTREE)/rules.mk
sinclude $(obj).depend
#########################################################################

60
board/netstal/mcu25/README.txt
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MCU25 Configuration Details
Memory Bank 0 -- Flash chip
---------------------------
0xfff00000 - 0xffffffff
The flash chip is really only 512Kbytes, but the high address bit of
the 1Meg region is ignored, so the flash is replicated through the
region. Thus, this is consistent with a flash base address 0xfff80000.
The placement at the end is to be consistent with reset behavior,
where the processor itself initially uses this bus to load the branch
vector and start running.
On-Chip Memory
--------------
0xf4000000 - 0xf4000fff
The 405GPr includes a 4K on-chip memory that can be placed however
software chooses. I choose to place the memory at this address, to
keep it out of the cachable areas.
Internal Peripherals
--------------------
0xef600300 - 0xef6008ff
These are scattered various peripherals internal to the PPC405GPr
chip.
Chip-Select 2: Flash Memory
---------------------------
0x70000000
Chip-Select 3: CAN Interface
----------------------------
0x7800000
Chip-Select 4: IMC-bus standard
-------------------------------
Our IO-Bus (slow version)
Chip-Select 5: IMC-bus fast (inactive)
--------------------------------------
Our IO-Bus (fast, but not yet use)
Memory Bank 1 -- SDRAM
-------------------------------------
0x00000000 - 0x2ffffff # Default 64 MB

29
board/netstal/mcu25/config.mk
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#
# (C) Copyright 2005 Netstal Maschinen AG
# Niklaus Giger (ng@netstal.com)
# 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
#
#
# Netstal Maschinen AG: MCU25 board
#
TEXT_BASE = 0xFFFB0000
ifeq ($(debug),1)
PLATFORM_CPPFLAGS += -DDEBUG -g
endif

218
board/netstal/mcu25/mcu25.c
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/*
*(C) Copyright 2005-2008 Netstal Maschinen AG
* Niklaus Giger (Niklaus.Giger@netstal.com)
*
* This source code is free software; you can redistribute it
* and/or modify it in source code form 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 <ppc4xx.h>
#include <asm/processor.h>
#include <asm/io.h>
#include <asm-ppc/u-boot.h>
#include "../common/nm.h"
DECLARE_GLOBAL_DATA_PTR;
#define MCU25_SLOT_ADDRESS (0x7A000000 + 0x0A)
#define MCU25_DIGITAL_IO_REGISTER (0x7A000000 + 0xc0)
#define MCU25_LED_REGISTER_ADDRESS (0x7C000000 + 0x10)
#define MCU25_VERSIONS_REGISTER (0x7C000000 + 0x0C)
#define MCU25_IO_CONFIGURATION (0x7C000000 + 0x0e)
#define MCU_SW_INSTALL_REQUESTED 0x08
#define SDRAM_LEN (32 << 20) /* 32 MB - RAM */
/*
* This function is run very early, out of flash, and before devices are
* initialized. It is called by lib_ppc/board.c:board_init_f by virtue
* of being in the init_sequence array.
*
* The SDRAM has been initialized already -- start.S:start called
* init.S:init_sdram early on -- but it is not yet being used for
* anything, not even stack. So be careful.
*/
/* Attention: If you want 1 microsecs times from the external oscillator
* 0x00004051 is okay for u-boot/linux, but different from old vxworks values
* 0x00804051 causes problems with u-boot and linux!
*/
#define CPC0_CR0_VALUE 0x0007F03C
#define CPC0_CR1_VALUE 0x00004051
int board_early_init_f (void)
{
/* Documented in A-1171
*
* Interrupt controller setup for the MCU25 board.
* Note: IRQ 0-15 405GP internally generated; high; level sensitive
* IRQ 16 405GP internally generated; low; level sensitive
* IRQ 17-24 RESERVED/UNUSED
* IRQ 31 (EXT IRQ 6) (unused)
*/
mtdcr(uicsr, 0xFFFFFFFF); /* clear all ints */
mtdcr(uicer, 0x00000000); /* disable all ints */
mtdcr(uiccr, 0x00000000); /* set all to be non-critical */
mtdcr(uicpr, 0xFFFFE000); /* set int polarities */
mtdcr(uictr, 0x00000000); /* set int trigger levels */
mtdcr(uicsr, 0xFFFFFFFF); /* clear all ints */
mtdcr(cntrl1, CPC0_CR1_VALUE);
mtdcr(ecr, 0x60606000);
mtdcr(CPC0_EIRR, 0x7C000000);
out32(GPIO0_OR, CFG_GPIO0_OR );
out32(GPIO0_TCR, CFG_GPIO0_TCR);
out32(GPIO0_ODR, CFG_GPIO0_ODR);
mtspr(ccr0, 0x00700000);
return 0;
}
#ifdef CONFIG_BOARD_PRE_INIT
int board_pre_init (void)
{
return board_early_init_f ();
}
#endif
int sys_install_requested(void)
{
u16 ioValue = in_be16((u16 *)MCU25_DIGITAL_IO_REGISTER);
return (ioValue & MCU_SW_INSTALL_REQUESTED) != 0;
}
int checkboard (void)
{
u16 boardVersReg = in_be16((u16 *)MCU25_VERSIONS_REGISTER);
u16 hwConfig = in_be16((u16 *)MCU25_IO_CONFIGURATION);
u16 generation = boardVersReg & 0x0f;
u16 index = boardVersReg & 0xf0;
/* Cannot be done in board_early_init */
mtdcr(cntrl0, CPC0_CR0_VALUE);
/* Force /RTS to active. The board it not wired quite
* correctly to use cts/rtc flow control, so just force the
* /RST active and forget about it.
*/
writeb (readb (0xef600404) | 0x03, 0xef600404);
nm_show_print(generation, index, hwConfig);
return 0;
}
u32 hcu_led_get(void)
{
return in_be16((u16 *)MCU25_LED_REGISTER_ADDRESS) & 0x3ff;
}
/*
* hcu_led_set value to be placed into the LEDs (max 6 bit)
*/
void hcu_led_set(u32 value)
{
out_be16((u16 *)MCU25_LED_REGISTER_ADDRESS, value);
}
/*
* sdram_init - Dummy implementation for start.S, spd_sdram or initdram
* used for HCUx
*/
void sdram_init(void)
{
return;
}
/*
* hcu_get_slot
*/
u32 hcu_get_slot(void)
{
u16 slot = in_be16((u16 *)MCU25_SLOT_ADDRESS);
return slot & 0x7f;
}
/*
* get_serial_number
*/
u32 get_serial_number(void)
{
u32 serial = in_be32((u32 *)CFG_FLASH_BASE);
if (serial == 0xffffffff)
return 0;
return serial;
}
/*
* misc_init_r.
*/
int misc_init_r(void)
{
common_misc_init_r();
set_params_for_sw_install( sys_install_requested(), "mcu25" );
return 0;
}
long int initdram(int board_type)
{
unsigned int dram_size = 64*1024*1024;
init_ppc405_sdram(dram_size);
#ifdef DEBUG
show_sdram_registers();
#endif
return dram_size;
}
#if defined(CONFIG_POST)
/*
* Returns 1 if keys pressed to start the power-on long-running tests
* Called from board_init_f().
*/
int post_hotkeys_pressed(void)
{
return 0; /* No hotkeys supported */
}
#endif /* CONFIG_POST */
#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
void ft_board_setup(void *blob, bd_t *bd)
{
ft_cpu_setup(blob, bd);
}
#endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */
/*
* Hardcoded flash setup:
* Flash 0 is a non-CFI AMD AM29F040 flash, 8 bit flash / 8 bit bus.
*/
ulong board_flash_get_legacy (ulong base, int banknum, flash_info_t * info)
{
if (banknum == 0) { /* non-CFI boot flash */
info->portwidth = 1;
info->chipwidth = 1;
info->interface = FLASH_CFI_X8;
return 1;
} else
return 0;
}

141
board/netstal/mcu25/u-boot.lds
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/*
* (C) Copyright 2000-2004
* 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
{
.resetvec 0xFFFFFFFC :
{
*(.resetvec)
} = 0xffff
/* 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 : {
/* The start.o file includes the initial jump vector that
must be located in the beginning. It is the basic run-
time function that calls all other functions. */
cpu/ppc4xx/start.o (.text)
/* . = env_offset;*/
/* common/environment.o(.text)*/
*(.text)
*(.fixup)
*(.got1)
}
_etext = .;
PROVIDE (etext = .);
.rodata :
{
*(.rodata)
*(.rodata1)
*(.rodata.str1.4)
*(.eh_frame)
}
.fini : { *(.fini) } =0
.ctors : { *(.ctors) }
.dtors : { *(.dtors) }
/* Read-write section, merged into data segment: */
. = (. + 0x00FF) & 0xFFFFFF00;
_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(256);
__init_begin = .;
.text.init : { *(.text.init) }
.data.init : { *(.data.init) }
. = ALIGN(256);
__init_end = .;
__bss_start = .;
.bss :
{
*(.sbss) *(.scommon)
*(.dynbss)
*(.bss)
*(COMMON)
}
_end = . ;
PROVIDE (end = .);
}
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