--- /dev/null
+#
+# (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
+
+#########################################################################
--- /dev/null
+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
+
--- /dev/null
+#
+# (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
+
--- /dev/null
+/*
+ *(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;
+}
+
--- /dev/null
+/*
+ * (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 = .);
+}
+
projects / oweals / u-boot.git / commitdiff