Patchwork [U-Boot,v2,1/2] coldfire: Add support for amcore board

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Submitter angelo dureghello
Date Oct. 31, 2012, 9:33 a.m.
Message ID <5090F05A.6060503@gmail.com>
Download mbox | patch
Permalink /patch/195787/
State Changes Requested
Delegated to: Jason Jin
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angelo dureghello - Oct. 31, 2012, 9:33 a.m.
Add support for coldfire mcf5307 used from amcore board.

Signed-off-by: Angelo Dureghello <sysamfw@gmail.com>
Cc: Jason Jin <jason.jin@freescale.com>
---
Changes for v2:
- None
---
  arch/m68k/cpu/mcf530x/Makefile     |   48 ++++
  arch/m68k/cpu/mcf530x/config.mk    |   30 +++
  arch/m68k/cpu/mcf530x/cpu.c        |   48 ++++
  arch/m68k/cpu/mcf530x/cpu.h        |   33 +++
  arch/m68k/cpu/mcf530x/cpu_init.c   |  160 +++++++++++++
  arch/m68k/cpu/mcf530x/interrupts.c |   43 ++++
  arch/m68k/cpu/mcf530x/speed.c      |   38 +++
  arch/m68k/cpu/mcf530x/start.S      |  253 ++++++++++++++++++++
  arch/m68k/include/asm/cache.h      |    2 +-
  arch/m68k/include/asm/immap.h      |   22 ++
  arch/m68k/include/asm/immap_5307.h |   78 ++++++
  arch/m68k/include/asm/m5307.h      |  123 ++++++++++
  12 files changed, 877 insertions(+), 1 deletion(-)

+
+#define        mcf_getimr()            \
+       *((volatile unsigned long *) (MCF_MBAR + MCFSIM_IMR))
+
+#define        mcf_setimr(imr)         \
+       *((volatile unsigned long *) (MCF_MBAR + MCFSIM_IMR)) = (imr);
+
+#endif                         /* mcf5307_h */

Patch

diff --git a/arch/m68k/cpu/mcf530x/Makefile b/arch/m68k/cpu/mcf530x/Makefile
new file mode 100644
index 0000000..3c5a1c2
--- /dev/null
+++ b/arch/m68k/cpu/mcf530x/Makefile
@@ -0,0 +1,48 @@ 
+#
+# Copyright (c) 2011 Angelo Dureghello <sysamfw@gmail.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 $(TOPDIR)/config.mk
+
+# CFLAGS += -DET_DEBUG
+
+LIB    = $(obj)lib$(CPU).o
+
+START  = start.o
+COBJS  = interrupts.o cpu.o speed.o cpu_init.o
+
+SRCS   := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS   := $(addprefix $(obj),$(SOBJS) $(COBJS))
+START  := $(addprefix $(obj),$(START))
+
+all:   $(obj).depend $(START) $(LIB)
+
+$(LIB):        $(OBJS)
+       $(call cmd_link_o_target, $(OBJS))
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/arch/m68k/cpu/mcf530x/config.mk 
b/arch/m68k/cpu/mcf530x/config.mk
new file mode 100644
index 0000000..f7b01c6
--- /dev/null
+++ b/arch/m68k/cpu/mcf530x/config.mk
@@ -0,0 +1,30 @@ 
+#
+# Copyright (c) 2011 Angelo Dureghello <sysamfw@gmail.com>
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+PLATFORM_RELFLAGS += -ffixed-d7 -msep-data
+
+cfg=$(shell grep configs $(OBJTREE)/include/config.h | sed 
's/.*<\(configs.*\)>/\1/')
+is5307:=$(shell grep CONFIG_M5307 $(TOPDIR)/include/$(cfg))
+
+ifneq (,$(findstring CONFIG_M5307,$(is5307)))
+PLATFORM_CPPFLAGS += -mcpu=5307
+endif
diff --git a/arch/m68k/cpu/mcf530x/cpu.c b/arch/m68k/cpu/mcf530x/cpu.c
new file mode 100644
index 0000000..6f8ca3b
--- /dev/null
+++ b/arch/m68k/cpu/mcf530x/cpu.c
@@ -0,0 +1,48 @@ 
+/*
+ * Copyright (c) 2011 Angelo Dureghello <sysamfw@gmail.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 <command.h>
+#include <asm/immap.h>
+
+#include "cpu.h"
+
+#ifdef CONFIG_M5307
+int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+       /* enable watchdog, set timeout to 0 and wait */
+       mbar_writeByte(MCFSIM_SYPCR, 0xc0);
+       while (1);
+
+       /* we don't return! */
+       return 0;
+}
+
+int checkcpu(void)
+{
+       char buf[32];
+
+       printf("CPU:   Freescale Coldfire MCF5307 at %s MHz\n",
+              strmhz(buf, CONFIG_SYS_CLK));
+       return 0;
+}
+#endif
diff --git a/arch/m68k/cpu/mcf530x/cpu.h b/arch/m68k/cpu/mcf530x/cpu.h
new file mode 100644
index 0000000..1accfcc
--- /dev/null
+++ b/arch/m68k/cpu/mcf530x/cpu.h
@@ -0,0 +1,33 @@ 
+/*
+ *  cpu.h
+ *
+ *  Copyright (c) 2011 Angelo Dureghello <sysamfw@gmail.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., 51 Franklin St, Fifth Floor, Boston,
+ * MA 02110-1301 USA
+ */
+
+#ifndef _CPU_H_
+#define _CPU_H_
+
+#include <command.h>
+
+/* Use this to create board specific reset functions */
+void board_reset(void) __attribute__((__weak__));
+
+#endif /* _CPU_H_ */
diff --git a/arch/m68k/cpu/mcf530x/cpu_init.c 
b/arch/m68k/cpu/mcf530x/cpu_init.c
new file mode 100644
index 0000000..f4a4ccb
--- /dev/null
+++ b/arch/m68k/cpu/mcf530x/cpu_init.c
@@ -0,0 +1,160 @@ 
+/*
+ * Copyright (c) 2011 Angelo Dureghello <sysamfw@gmail.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 <watchdog.h>
+#include <asm/immap.h>
+
+#if defined(CONFIG_M5307)
+/*
+ * Simple mcf5307 chip select module init.
+ *
+ * Note: this chip has an issue reported in the device "errata":
+ * MCF5307ER Rev 4.2 reports @ section 35:
+ * Corrupted Return PC in Exception Stack Frame
+ * When processing an autovectored interrupt an error can occur that
+ * causes 0xFFFFFFFF to be written as the return PC value in the
+ * exception stack frame. The problem is caused by a conflict between
+ * an internal autovector access and a chip select mapped to the IACK
+ * address space (0xFFFFXXXX).
+ * Workaround:
+ * Set the C/I bit in the chip select mask register (CSMR) for the
+ * chip select that is mapped to 0xFFFFXXXX.
+ * This will prevent the chip select from asserting for IACK accesses.
+ */
+#define MCF5307_SP_ERR_FIX(cs_base,mask) \
+        if((cs_base+(mask&0xffff0000))>=0xffff0000)mask|=0x20
+
+void init_csm(void)
+{
+       volatile csm_t *csm = (csm_t *) (MMAP_CSM);
+
+#if (defined(CONFIG_SYS_CS0_BASE) && defined(CONFIG_SYS_CS0_MASK) \
+ && defined(CONFIG_SYS_CS0_CTRL))
+       csm->csar0 = (CONFIG_SYS_CS0_BASE>>16);
+       csm->cscr0 = CONFIG_SYS_CS0_CTRL;
+       csm->csmr0 = CONFIG_SYS_CS0_MASK;
+       MCF5307_SP_ERR_FIX(CONFIG_SYS_CS0_BASE,csm->csmr0);
+#else
+#warning "Chip Select 0 are not initialized/used"
+#endif
+#if (defined(CONFIG_SYS_CS1_BASE) && defined(CONFIG_SYS_CS1_MASK) \
+ && defined(CONFIG_SYS_CS1_CTRL))
+       csm->csar1 = (CONFIG_SYS_CS1_BASE>>16);
+       csm->cscr1 = CONFIG_SYS_CS1_CTRL;
+       csm->csmr1 = CONFIG_SYS_CS1_MASK;
+       MCF5307_SP_ERR_FIX(CONFIG_SYS_CS1_BASE,csm->csmr1);
+#endif
+#if (defined(CONFIG_SYS_CS2_BASE) && defined(CONFIG_SYS_CS2_MASK) \
+ && defined(CONFIG_SYS_CS2_CTRL))
+       csm->csar2 = (CONFIG_SYS_CS2_BASE>>16);
+       csm->cscr2 = CONFIG_SYS_CS2_CTRL;
+       csm->csmr2 = CONFIG_SYS_CS2_MASK;
+       MCF5307_SP_ERR_FIX(CONFIG_SYS_CS2_BASE,csm->csmr2);
+#endif
+#if (defined(CONFIG_SYS_CS3_BASE) && defined(CONFIG_SYS_CS3_MASK) \
+ && defined(CONFIG_SYS_CS3_CTRL))
+       csm->csar3 =(CONFIG_SYS_CS3_BASE>>16);
+       csm->cscr3 = CONFIG_SYS_CS3_CTRL;
+       csm->csmr3 = CONFIG_SYS_CS3_MASK;
+       MCF5307_SP_ERR_FIX(CONFIG_SYS_CS3_BASE,csm->csmr3);
+#endif
+#if (defined(CONFIG_SYS_CS4_BASE) && defined(CONFIG_SYS_CS4_MASK) \
+ && defined(CONFIG_SYS_CS4_CTRL))
+       csm->csar4 = (CONFIG_SYS_CS4_BASE>>16);
+       csm->cscr4 = CONFIG_SYS_CS4_CTRL;
+       csm->csmr4 = CONFIG_SYS_CS4_MASK;
+       MCF5307_SP_ERR_FIX(CONFIG_SYS_CS4_BASE,csm->csmr4);
+#endif
+#if (defined(CONFIG_SYS_CS5_BASE) && defined(CONFIG_SYS_CS5_MASK) \
+ && defined(CONFIG_SYS_CS5_CTRL))
+       csm->csar5 = (CONFIG_SYS_CS5_BASE>>16);
+       csm->cscr5 = CONFIG_SYS_CS5_CTRL;
+       csm->csmr5 = CONFIG_SYS_CS5_MASK;
+       MCF5307_SP_ERR_FIX(CONFIG_SYS_CS5_BASE,csm->csmr5);
+#endif
+#if (defined(CONFIG_SYS_CS6_BASE) && defined(CONFIG_SYS_CS6_MASK) \
+ && defined(CONFIG_SYS_CS6_CTRL))
+       csm->csar6 = (CONFIG_SYS_CS6_BASE>>16);
+       csm->cscr6 = CONFIG_SYS_CS6_CTRL;
+       csm->csmr6 = CONFIG_SYS_CS6_MASK;
+       MCF5307_SP_ERR_FIX(CONFIG_SYS_CS6_BASE,csm->csmr6);
+#endif
+#if (defined(CONFIG_SYS_CS7_BASE) && defined(CONFIG_SYS_CS7_MASK) \
+ && defined(CONFIG_SYS_CS7_CTRL))
+       csm->csar7 = (CONFIG_SYS_CS7_BASE>>16);
+       csm->cscr7 = CONFIG_SYS_CS7_CTRL;
+       csm->csmr7 = CONFIG_SYS_CS7_MASK;
+       MCF5307_SP_ERR_FIX(CONFIG_SYS_CS7_BASE,csm->csmr7);
+#endif
+}
+
+/*
+ * Set up the memory map and initialize registers
+ */
+void cpu_init_f(void)
+{
+       mbar_writeByte(MCFSIM_MPARK, 0x00);
+       mbar_writeByte(MCFSIM_SYPCR, 0x00);
+       mbar_writeByte(MCFSIM_SWIVR, 0x0f);
+       mbar_writeByte(MCFSIM_SWSR, 0x00);
+       mbar_writeLong(MCFSIM_IMR, 0xfffffbff);
+       mbar_writeByte(MCFSIM_SWDICR, 0x00);
+       mbar_writeByte(MCFSIM_TIMER1ICR, 0x00);
+       mbar_writeByte(MCFSIM_TIMER2ICR, 0x88);
+       mbar_writeByte(MCFSIM_I2CICR, 0x00);
+       mbar_writeByte(MCFSIM_UART1ICR, 0x00);
+       mbar_writeByte(MCFSIM_UART2ICR, 0x00);
+       mbar_writeByte(MCFSIM_ICR6, 0x00);
+       mbar_writeByte(MCFSIM_ICR7, 0x00);
+       mbar_writeByte(MCFSIM_ICR8, 0x00);
+       mbar_writeByte(MCFSIM_ICR9, 0x00);
+
+       /* Chipselect Init */
+       init_csm();
+
+       /* enable instruction cache now */
+       icache_enable();
+}
+
+/*
+ * initialize higher level parts of CPU like timers
+ */
+int cpu_init_r(void)
+{
+       return (0);
+}
+
+void uart_port_conf(int port)
+{
+}
+
+void arch_preboot_os(void)
+{
+       /*
+        * OS can change interrupt offsets and are about to boot the OS so
+        * we need to make sure we disable all async interrupts.
+        */
+       mbar_writeByte(MCFSIM_TIMER1ICR, 0x00);
+       mbar_writeByte(MCFSIM_TIMER2ICR, 0x00);
+}
+#endif
diff --git a/arch/m68k/cpu/mcf530x/interrupts.c 
b/arch/m68k/cpu/mcf530x/interrupts.c
new file mode 100644
index 0000000..17a438f
--- /dev/null
+++ b/arch/m68k/cpu/mcf530x/interrupts.c
@@ -0,0 +1,43 @@ 
+/*
+ * Copyright (c) 2011 Angelo Dureghello <sysamfw@gmail.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 <watchdog.h>
+#include <asm/processor.h>
+#include <asm/immap.h>
+
+#ifdef  CONFIG_M5307
+int interrupt_init(void)
+{
+       enable_interrupts();
+
+       return 0;
+}
+
+void dtimer_intr_setup(void)
+{
+       /* clearing TIMER2 mask, so enabling the related interrupt */
+       mbar_writeLong(MCFSIM_IMR, mbar_readLong(MCFSIM_IMR) & ~0x00000400);
+       /* set TIMER2 interrupt priority */
+       mbar_writeByte(MCFSIM_TIMER2ICR, CONFIG_SYS_TMRINTR_PRI);
+}
+#endif
diff --git a/arch/m68k/cpu/mcf530x/speed.c b/arch/m68k/cpu/mcf530x/speed.c
new file mode 100644
index 0000000..42b55dd
--- /dev/null
+++ b/arch/m68k/cpu/mcf530x/speed.c
@@ -0,0 +1,38 @@ 
+/*
+ * Copyright (c) 2011 Angelo Dureghello <sysamfw@gmail.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/processor.h>
+#include <asm/immap.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/* get_clocks() fills in gd->cpu_clock and gd->bus_clk */
+int get_clocks (void)
+{
+#if defined(CONFIG_M5307)
+       gd->cpu_clk = CONFIG_SYS_CLK;
+       gd->bus_clk = gd->cpu_clk / 2;
+#endif
+
+       return (0);
+}
diff --git a/arch/m68k/cpu/mcf530x/start.S b/arch/m68k/cpu/mcf530x/start.S
new file mode 100644
index 0000000..b00ec25
--- /dev/null
+++ b/arch/m68k/cpu/mcf530x/start.S
@@ -0,0 +1,253 @@ 
+/*
+ * Copyright (c) 2011 Angelo Dureghello <sysamfw@gmail.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 <asm-offsets.h>
+#include <config.h>
+#include <timestamp.h>
+#include "version.h"
+#include <asm/cache.h>
+
+#ifndef         CONFIG_IDENT_STRING
+#define         CONFIG_IDENT_STRING ""
+#endif
+
+#define _START _start
+#define _FAULT _fault
+
+#define SAVE_ALL                                               \
+       move.w  #0x2700,%sr;            /* disable intrs */     \
+       subl    #60,%sp;                /* space for 15 regs */ \
+       moveml  %d0-%d7/%a0-%a6,%sp@;                           \
+
+#define RESTORE_ALL                                            \
+       moveml  %sp@,%d0-%d7/%a0-%a6;                           \
+       addl    #60,%sp;                /* space for 15 regs */ \
+       rte
+
+/* If we come from a pre-loader we don't need an initial exception
+ * table.
+ */
+#if !defined(CONFIG_MONITOR_IS_IN_RAM)
+
+.text
+/*
+ *     Vector table. This is used for initial platform startup.
+ *     These vectors are to catch any un-intended traps.
+ */
+_vectors:
+
+.long  0x00000000              /* Flash offset is 0 until we setup CS0 */
+.long  _START
+
+.long  _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long  _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long  _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long  _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long  _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long  _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long  _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long  _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+
+.long  _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long  _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long  _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long  _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long  _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long  _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long  _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long  _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+
+.long  _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long  _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long  _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long  _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long  _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long  _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long  _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long  _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+
+.long  _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long  _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long  _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long  _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long  _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long  _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long  _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long  _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+
+#endif
+
+       .text
+       .globl  _start
+_start:
+       nop
+       nop
+       move.w  #0x2700,%sr
+
+       move.l  #(CONFIG_SYS_MBAR + 1), %d0             /* set MBAR 
address + valid flag */
+       move.c  %d0, %MBAR
+
+       move.l  #(CONFIG_SYS_INIT_RAM_ADDR + 1), %d0
+       move.c  %d0, %RAMBAR
+
+       /* if we come from a pre-loader we have no exception table and
+        * therefore no VBR to set
+        */
+#if !defined(CONFIG_MONITOR_IS_IN_RAM)
+       move.l  #CONFIG_SYS_FLASH_BASE, %d0
+       movec   %d0, %VBR
+#endif
+
+       /* initialize general use internal ram */
+       move.l #0, %d0
+       move.l #(ICACHE_STATUS), %a1    /* icache */
+       move.l #(DCACHE_STATUS), %a2    /* icache */
+       move.l %d0, (%a1)
+       move.l %d0, (%a2)
+
+       /* set stackpointer to internal sram end - 80 (global data 
struct size + some bytes)
+        * get some stackspace for the first c-code,
+        */
+       move.l  #(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET), %sp
+       clr.l   %sp@-
+
+       move.l #__got_start, %a5        /* put relocation table address 
to a5 */
+
+       bsr cpu_init_f                  /* run low-level CPU init code 
(from flash) */
+       bsr board_init_f                /* run low-level board init code 
(from flash) */
+
+       /* board_init_f() does not return */
+
+/*------------------------------------------------------------------------------*/
+
+/*
+ * void relocate_code (addr_sp, gd, addr_moni)
+ *
+ * This "function" does not return, instead it continues in RAM
+ * after relocating the monitor code.
+ *
+ * r3 = dest
+ * r4 = src
+ * r5 = length in bytes
+ * r6 = cachelinesize
+ */
+       .globl  relocate_code
+relocate_code:
+       link.w %a6,#0
+       move.l 8(%a6), %sp              /* set new stack pointer */
+       move.l 12(%a6), %d0             /* Save copy of Global Data 
pointer */
+       move.l 16(%a6), %a0             /* Save copy of Destination 
Address */
+
+       move.l #CONFIG_SYS_MONITOR_BASE, %a1
+       move.l #__init_end, %a2
+       move.l %a0, %a3
+
+       /* copy the code to RAM */
+1:
+       move.l (%a1)+, (%a3)+
+       cmp.l  %a1,%a2
+       bgt.s    1b
+
+/*
+ * We are done. Do not return, instead branch to second part of board
+ * initialization, now running from RAM.
+ */
+       move.l  %a0, %a1
+       add.l   #(in_ram - CONFIG_SYS_MONITOR_BASE), %a1
+       jmp     (%a1)
+
+in_ram:
+
+clear_bss:
+       /*
+        * Now clear BSS segment
+        */
+       move.l  %a0, %a1
+       add.l   #(_sbss - CONFIG_SYS_MONITOR_BASE),%a1
+       move.l  %a0, %d1
+       add.l   #(_ebss - CONFIG_SYS_MONITOR_BASE),%d1
+6:
+       clr.l   (%a1)+
+       cmp.l   %a1,%d1
+       bgt.s   6b
+
+       /*
+        * fix got table in RAM
+        */
+       move.l  %a0, %a1
+       add.l   #(__got_start - CONFIG_SYS_MONITOR_BASE),%a1
+       move.l  %a1,%a5         /* * fix got pointer register a5 */
+
+       move.l  %a0, %a2
+       add.l   #(__got_end - CONFIG_SYS_MONITOR_BASE),%a2
+
+7:
+       move.l  (%a1),%d1
+       sub.l   #_start,%d1
+       add.l   %a0,%d1
+       move.l  %d1,(%a1)+
+       cmp.l   %a2, %a1
+       bne     7b
+
+       /* calculate relative jump to board_init_r in ram */
+       move.l %a0, %a1
+       add.l #(board_init_r - CONFIG_SYS_MONITOR_BASE), %a1
+
+       /* set parameters for board_init_r */
+       move.l %a0,-(%sp)               /* dest_addr */
+       move.l %d0,-(%sp)               /* gd */
+#if defined(DEBUG) && (CONFIG_SYS_TEXT_BASE != 
CONFIG_SYS_INT_FLASH_BASE) && \
+    defined(CONFIG_SYS_HALT_BEFOR_RAM_JUMP)
+       halt
+#endif
+       jsr     (%a1)
+
+/*------------------------------------------------------------------------------*/
+/* exception code */
+       .globl _fault
+_fault:
+       jmp _fault
+
+       .globl  _exc_handler
+_exc_handler:
+       SAVE_ALL
+       movel   %sp,%sp@-
+       bsr     exc_handler
+       addql   #4,%sp
+       RESTORE_ALL
+
+       .globl  _int_handler
+_int_handler:
+       SAVE_ALL
+       movel   %sp,%sp@-
+       bsr     int_handler
+       addql   #4,%sp
+       RESTORE_ALL
+
+/*------------------------------------------------------------------------------*/
+
+       .globl  version_string
+version_string:
+       .ascii U_BOOT_VERSION
+       .ascii " (", U_BOOT_DATE, " - ", U_BOOT_TIME, ")"
+       .ascii CONFIG_IDENT_STRING, "\0"
+       .align 4
diff --git a/arch/m68k/include/asm/cache.h b/arch/m68k/include/asm/cache.h
index f9e2d15..e519dfa 100644
--- a/arch/m68k/include/asm/cache.h
+++ b/arch/m68k/include/asm/cache.h
@@ -31,7 +31,7 @@ 
  #define CONFIG_CF_V2
  #endif

-#if defined(CONFIG_MCF532x) || defined(CONFIG_MCF5301x)
+#if defined(CONFIG_MCF530x) || defined(CONFIG_MCF532x) || 
defined(CONFIG_MCF5301x)
  #define CONFIG_CF_V3
  #endif

diff --git a/arch/m68k/include/asm/immap.h b/arch/m68k/include/asm/immap.h
index 2aab463..515739f 100644
--- a/arch/m68k/include/asm/immap.h
+++ b/arch/m68k/include/asm/immap.h
@@ -256,6 +256,28 @@ 
  #endif
  #endif                         /* CONFIG_M5282 */

+#ifdef CONFIG_M5307
+#include <asm/immap_5307.h>
+#include <asm/m5307.h>
+
+#define CONFIG_SYS_UART_BASE            (MMAP_UART0 + 
(CONFIG_SYS_UART_PORT * 0x40))
+
+#define CONFIG_SYS_INTR_BASE            (MMAP_INTC)
+#define CONFIG_SYS_NUM_IRQS             (64)
+
+/* Timer */
+#ifdef CONFIG_MCFTMR
+#define CONFIG_SYS_UDELAY_BASE          (MMAP_DTMR0)
+#define CONFIG_SYS_TMR_BASE             (MMAP_DTMR1)
+#define CONFIG_SYS_TMRPND_REG           (mbar_readLong(MCFSIM_IPR))
+#define CONFIG_SYS_TMRINTR_NO           (31)
+#define CONFIG_SYS_TMRINTR_MASK (0x00000400)
+#define CONFIG_SYS_TMRINTR_PEND (CONFIG_SYS_TMRINTR_MASK)
+#define CONFIG_SYS_TMRINTR_PRI          (MCFSIM_ICR_AUTOVEC | 
MCFSIM_ICR_LEVEL7 | MCFSIM_ICR_PRI3)
+#define CONFIG_SYS_TIMER_PRESCALER      (((gd->bus_clk / 1000000) - 1) 
<< 8)
+#endif
+#endif                          /* CONFIG_M5307 */
+
  #if defined(CONFIG_MCF5301x)
  #include <asm/immap_5301x.h>
  #include <asm/m5301x.h>
diff --git a/arch/m68k/include/asm/immap_5307.h 
b/arch/m68k/include/asm/immap_5307.h
new file mode 100644
index 0000000..f52a09c
--- /dev/null
+++ b/arch/m68k/include/asm/immap_5307.h
@@ -0,0 +1,78 @@ 
+/*
+ * MCF5307 Internal Memory Map
+ *
+ * Copyright (c) 2011 Angelo Dureghello <sysamfw@gmail.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
+ */
+
+#ifndef __IMMAP_5307__
+#define __IMMAP_5307__
+
+#define MMAP_INTC      (CONFIG_SYS_MBAR + 0x00000040)
+#define MMAP_CSM       (CONFIG_SYS_MBAR + 0x00000080)
+#define MMAP_DTMR0     (CONFIG_SYS_MBAR + 0x00000140)
+#define MMAP_DTMR1     (CONFIG_SYS_MBAR + 0x00000180)
+#define MMAP_UART0     (CONFIG_SYS_MBAR + 0x000001C0)
+#define MMAP_UART1     (CONFIG_SYS_MBAR + 0x00000200)
+
+typedef struct csm {
+       u16 csar0;              /* Chip-select Address */
+       u16 res0a;
+       u32 csmr0;              /* Chip-select Mask */
+       u16 res0b;
+       u16 cscr0;              /* Chip-select Control */
+       u16 csar1;
+       u16 res1a;
+       u32 csmr1;
+       u16 res1b;
+       u16 cscr1;
+       u16 csar2;
+       u16 res2a;
+       u32 csmr2;
+       u16 res2b;
+       u16 cscr2;
+       u16 csar3;
+       u16 res3a;
+       u32 csmr3;
+       u16 res3b;
+       u16 cscr3;
+       u16 csar4;
+       u16 res4a;
+       u32 csmr4;
+       u16 res4b;
+       u16 cscr4;
+       u16 csar5;
+       u16 res5a;
+       u32 csmr5;
+       u16 res5b;
+       u16 cscr5;
+       u16 csar6;
+       u16 res6a;
+       u32 csmr6;
+       u16 res6b;
+       u16 cscr6;
+       u16 csar7;
+       u16 res7a;
+       u32 csmr7;
+       u16 res7b;
+       u16 cscr7;
+} csm_t;
+
+#endif                         /* __IMMAP_5307__ */
diff --git a/arch/m68k/include/asm/m5307.h b/arch/m68k/include/asm/m5307.h
new file mode 100644
index 0000000..15007e9
--- /dev/null
+++ b/arch/m68k/include/asm/m5307.h
@@ -0,0 +1,123 @@ 
+/*
+ * mcf5307.h -- Definitions for Motorola Coldfire 5307
+ *
+ * Copyright (c) 2011 Angelo Dureghello <sysamfw@gmail.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
+ */
+
+#ifndef        mcf5307_h
+#define        mcf5307_h
+/****************************************************************************/
+
+/*
+ * useful definitions for reading/writing MBAR offset memory
+ */
+#define mbar_readLong(x)       *((volatile unsigned long *) 
(CONFIG_SYS_MBAR + x))
+#define mbar_writeLong(x,y)    *((volatile unsigned long *) 
(CONFIG_SYS_MBAR + x)) = y
+#define mbar_writeShort(x,y)   *((volatile unsigned short *) 
(CONFIG_SYS_MBAR + x)) = y
+#define mbar_writeByte(x,y)    *((volatile unsigned char *) 
(CONFIG_SYS_MBAR + x)) = y
+
+/*
+ * Size of internal RAM
+ */
+
+#define INT_RAM_SIZE 4096      /* RAMBAR - 4k */
+
+/*
+ *     Define the 5249 SIM register set addresses.
+ */
+
+/*****************
+ ***** MBAR  *****
+ *****************/
+#define MCFSIM_RSR             0x00    /* Reset Status reg (r/w) */
+#define MCFSIM_SYPCR           0x01    /* System Protection reg (r/w) */
+#define MCFSIM_SWIVR           0x02    /* SW Watchdog intr reg (r/w) */
+#define MCFSIM_SWSR            0x03    /* SW Watchdog service (r/w) */
+#define MCFSIM_PAR             0x04    /* Parallel pin assignment 
register */
+#define MCFSIM_PLLCR           0x08    /* PLL Control register */
+#define MCFSIM_MPARK           0x0c    /* Bus master park register (r/w) */
+
+#define MCFSIM_SIMR            0x00    /* SIM Config reg (r/w) */
+#define MCFSIM_ICR0            0x4c    /* Intr Ctrl reg 0 (r/w) */
+#define MCFSIM_ICR1            0x4d    /* Intr Ctrl reg 1 (r/w) */
+#define MCFSIM_ICR2            0x4e    /* Intr Ctrl reg 2 (r/w) */
+#define MCFSIM_ICR3            0x4f    /* Intr Ctrl reg 3 (r/w) */
+#define MCFSIM_ICR4            0x50    /* Intr Ctrl reg 4 (r/w) */
+#define MCFSIM_ICR5            0x51    /* Intr Ctrl reg 5 (r/w) */
+#define MCFSIM_ICR6            0x52    /* Intr Ctrl reg 6 (r/w) */
+#define MCFSIM_ICR7            0x53    /* Intr Ctrl reg 7 (r/w) */
+#define MCFSIM_ICR8            0x54    /* Intr Ctrl reg 8 (r/w) */
+#define MCFSIM_ICR9            0x55    /* Intr Ctrl reg 9 (r/w) */
+#define MCFSIM_ICR10           0x56    /* Intr Ctrl reg 10 (r/w) */
+#define MCFSIM_ICR11           0x57    /* Intr Ctrl reg 11 (r/w) */
+
+#define MCFSIM_IPR             0x40    /* Interrupt Pend reg (r/w) */
+#define MCFSIM_IMR             0x44    /* Interrupt Mask reg (r/w) */
+
+#define MCFSIM_DCR             0x100   /* DRAM Control reg (r/w) */
+#define MCFSIM_DACR0           0x108   /* DRAM 0 Addr and Ctrl (r/w) */
+#define MCFSIM_DMR0            0x10c   /* DRAM 0 Mask reg (r/w) */
+#define MCFSIM_DACR1           0x110   /* DRAM 1 Addr and Ctrl (r/w) */
+#define MCFSIM_DMR1            0x114   /* DRAM 1 Mask reg (r/w) */
+
+#define MCFSIM_PADDR           0x244   /* Parallel data direction 
register */
+#define MCFSIM_PADAT           0x248   /* Parallel data direction 
register */
+
+/*
+ *  Some symbol defines for the above...
+ */
+#define        MCFSIM_SWDICR           MCFSIM_ICR0     /* Watchdog 
timer ICR */
+#define        MCFSIM_TIMER1ICR        MCFSIM_ICR1     /* Timer 1 ICR */
+#define        MCFSIM_TIMER2ICR        MCFSIM_ICR2     /* Timer 2 ICR */
+#define        MCFSIM_I2CICR           MCFSIM_ICR3     /* I2C ICR */
+#define        MCFSIM_UART1ICR MCFSIM_ICR4     /* UART 1 ICR */
+#define        MCFSIM_UART2ICR MCFSIM_ICR5     /* UART 2 ICR */
+/* XXX - If needed, DMA ICRs go here */
+
+/*
+ *     Bit definitions for the ICR family of registers.
+ */
+#define        MCFSIM_ICR_AUTOVEC      0x80    /* Auto-vectored intr */
+#define        MCFSIM_ICR_LEVEL0       0x00    /* Level 0 intr */
+#define        MCFSIM_ICR_LEVEL1       0x04    /* Level 1 intr */
+#define        MCFSIM_ICR_LEVEL2       0x08    /* Level 2 intr */
+#define        MCFSIM_ICR_LEVEL3       0x0c    /* Level 3 intr */
+#define        MCFSIM_ICR_LEVEL4       0x10    /* Level 4 intr */
+#define        MCFSIM_ICR_LEVEL5       0x14    /* Level 5 intr */
+#define        MCFSIM_ICR_LEVEL6       0x18    /* Level 6 intr */
+#define        MCFSIM_ICR_LEVEL7       0x1c    /* Level 7 intr */
+
+#define        MCFSIM_ICR_PRI0         0x00    /* Priority 0 intr */
+#define        MCFSIM_ICR_PRI1         0x01    /* Priority 1 intr */
+#define        MCFSIM_ICR_PRI2         0x02    /* Priority 2 intr */
+#define        MCFSIM_ICR_PRI3         0x03    /* Priority 3 intr */
+
+/*
+ *  Macros to read/set IMR register. It is 32 bits on the 5307.
+ */