Add support for mcf5307 coldfire cpu. This is the updated entire patch,
tested on a mcf5307 based custom board. Only this new set of file has been
added, no other files in the tree are involved.
Signed-off-by: Angelo Dureghello<sysa...@gmail.com>
---
arch/m68k/cpu/mcf530x/Makefile | 48 +++++++
arch/m68k/cpu/mcf530x/config.mk | 25 ++++
arch/m68k/cpu/mcf530x/cpu.c | 48 +++++++
arch/m68k/cpu/mcf530x/cpu.h | 33 +++++
arch/m68k/cpu/mcf530x/cpu_init.c | 164 +++++++++++++++++++++++
arch/m68k/cpu/mcf530x/interrupts.c | 42 ++++++
arch/m68k/cpu/mcf530x/speed.c | 36 +++++
arch/m68k/cpu/mcf530x/start.S | 253 ++++++++++++++++++++++++++++++++++++
arch/m68k/include/asm/immap_5307.h | 78 +++++++++++
arch/m68k/include/asm/m5307.h | 119 +++++++++++++++++
10 files changed, 846 insertions(+), 0 deletions(-)
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 <sysa...@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..2ba1644
--- /dev/null
+++ b/arch/m68k/cpu/mcf530x/config.mk
@@ -0,0 +1,25 @@
+#
+# Copyright (c) 2011 Angelo Dureghello <sysa...@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
+
+PLATFORM_CPPFLAGS += -m5307 -fPIC
diff --git a/arch/m68k/cpu/mcf530x/cpu.c b/arch/m68k/cpu/mcf530x/cpu.c
new file mode 100644
index 0000000..efd9cbd
--- /dev/null
+++ b/arch/m68k/cpu/mcf530x/cpu.c
@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2011 Angelo Dureghello <sysa...@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 <command.h>
+#include <asm/immap.h>
+
+#include "cpu.h"
+
+int checkcpu(void)
+{
+ char buf[32];
+
+ printf("CPU: Freescale Coldfire MCF5307 at %s MHz\n",
+ strmhz(buf, CONFIG_SYS_CLK));
+ return 0;
+}
+
+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;
+}
+
diff --git a/arch/m68k/cpu/mcf530x/cpu.h b/arch/m68k/cpu/mcf530x/cpu.h
new file mode 100644
index 0000000..c1227eb
--- /dev/null
+++ b/arch/m68k/cpu/mcf530x/cpu.h
@@ -0,0 +1,33 @@
+/*
+ * cpu.h
+ *
+ * Copyright (c) 2009 Freescale Semiconductor, Inc.
+ *
+ * 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..5e1c9f0
--- /dev/null
+++ b/arch/m68k/cpu/mcf530x/cpu_init.c
@@ -0,0 +1,164 @@
+/*
+ * Copyright (c) 2011 Angelo Dureghello <sysa...@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>
+
+/*
+ * 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
+}
+
+/*
+ * Breath some life into the CPU...
+ *
+ * Set up the memory map,
+ * initialize a bunch of registers,
+ */
+void cpu_init_f(void)
+{
+ /* 5307 Internal Core takes priority over DMA */
+ mbar_writeByte(MCFSIM_MPARK, 0x30);
+
+ 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);
+}
+
diff --git a/arch/m68k/cpu/mcf530x/interrupts.c
b/arch/m68k/cpu/mcf530x/interrupts.c
new file mode 100644
index 0000000..f743d1e
--- /dev/null
+++ b/arch/m68k/cpu/mcf530x/interrupts.c
@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) 2011 Angelo Dureghello <sysa...@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>
+
+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);
+}
+
diff --git a/arch/m68k/cpu/mcf530x/speed.c b/arch/m68k/cpu/mcf530x/speed.c
new file mode 100644
index 0000000..426bd9e
--- /dev/null
+++ b/arch/m68k/cpu/mcf530x/speed.c
@@ -0,0 +1,36 @@
+/*
+ * Copyright (c) 2011 Angelo Dureghello <sysa...@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)
+{
+ gd->cpu_clk = CONFIG_SYS_CLK;
+ gd->bus_clk = gd->cpu_clk / 2;
+
+ return (0);
+}
diff --git a/arch/m68k/cpu/mcf530x/start.S b/arch/m68k/cpu/mcf530x/start.S
new file mode 100644
index 0000000..d717080
--- /dev/null
+++ b/arch/m68k/cpu/mcf530x/start.S
@@ -0,0 +1,253 @@
+/*
+ * Copyright (c) 2011 Angelo Dureghello <sysa...@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
+ movec %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/immap_5307.h
b/arch/m68k/include/asm/immap_5307.h
new file mode 100644
index 0000000..cb58297
--- /dev/null
+++ b/arch/m68k/include/asm/immap_5307.h
@@ -0,0 +1,78 @@
+/*
+ * MCF5307 Internal Memory Map
+ *
+ * Copyright (c) 2011 Angelo Dureghello <sysa...@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..edb1bf2
--- /dev/null
+++ b/arch/m68k/include/asm/m5307.h
@@ -0,0 +1,119 @@
+/*
+ * mcf5307.h -- Definitions for Motorola Coldfire 5307
+ *
+ * Copyright (c) 2011 Angelo Dureghello <sysa...@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_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) */
+
+/*
+ * 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.
+ */
+
+#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 */
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot
