ColdFire: Add MCF547x_8x cpu arch

Signed-off-by: TsiChungLiew <Tsi-Chung.Liew@freescale.com> Signed-off by: John Rigby <jrigby@freescale.com>
17 years ago · 570c0186ae
parent e2756f4b54
commit 570c0186ae
9 changed files with 1087 additions and 0 deletions
--- a/cpu/mcf547x_8x/Makefile
+++ b/cpu/mcf547x_8x/Makefile
@ -0,0 +1,48 @@
+#
+# (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
+#
+
+include $(TOPDIR)/config.mk
+
+# CFLAGS += -DET_DEBUG
+
+LIB	= lib$(CPU).a
+
+START	=
+COBJS	= cpu.o speed.o cpu_init.o pci.o interrupts.o slicetimer.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)
+	$(AR) $(ARFLAGS) $@ $(OBJS)
+
+#########################################################################
+
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
--- a/cpu/mcf547x_8x/config.mk
+++ b/cpu/mcf547x_8x/config.mk
@ -0,0 +1,31 @@
+#
+# (C) Copyright 2003 Josef Baumgartner <josef.baumgartner@telex.de>
+#
+# (C) Copyright 2000-2004
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+PLATFORM_RELFLAGS += -ffixed-d7 -msep-data
+ifeq ($(findstring 4.2,$(shell $(CC) --version)),4.2)
+PLATFORM_CPPFLAGS += -mcpu=5485 -fPIC
+else
+PLATFORM_CPPFLAGS += -m5407 -fPIC
+endif
--- a/cpu/mcf547x_8x/cpu.c
+++ b/cpu/mcf547x_8x/cpu.c
@ -0,0 +1,143 @@
+/*
+ *
+ * (C) Copyright 2000-2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
+ * TsiChung Liew (Tsi-Chung.Liew@freescale.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>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[])
+{
+	volatile gptmr_t *gptmr = (gptmr_t *) (MMAP_GPTMR);
+
+	gptmr->pre = 10;
+	gptmr->cnt = 1;
+
+	/* enable watchdog, set timeout to 0 and wait */
+	gptmr->mode = GPT_TMS_SGPIO;
+	gptmr->ctrl = GPT_CTRL_WDEN | GPT_CTRL_CE;
+
+	/* we don't return! */
+	return 1;
+};
+
+int checkcpu(void)
+{
+	volatile siu_t *siu = (siu_t *) MMAP_SIU;
+	u16 id = 0;
+
+	puts("CPU:   ");
+
+	switch ((siu->jtagid & 0x000FF000) >> 12) {
+	case 0x0C:
+		id = 5485;
+		break;
+	case 0x0D:
+		id = 5484;
+		break;
+	case 0x0E:
+		id = 5483;
+		break;
+	case 0x0F:
+		id = 5482;
+		break;
+	case 0x10:
+		id = 5481;
+		break;
+	case 0x11:
+		id = 5480;
+		break;
+	case 0x12:
+		id = 5475;
+		break;
+	case 0x13:
+		id = 5474;
+		break;
+	case 0x14:
+		id = 5473;
+		break;
+	case 0x15:
+		id = 5472;
+		break;
+	case 0x16:
+		id = 5471;
+		break;
+	case 0x17:
+		id = 5470;
+		break;
+	}
+
+	if (id) {
+		printf("Freescale MCF%d\n", id);
+		printf("       CPU CLK %d Mhz BUS CLK %d Mhz\n",
+		       (int)(gd->cpu_clk / 1000000),
+		       (int)(gd->bus_clk / 1000000));
+	}
+
+	return 0;
+};
+
+#if defined(CONFIG_HW_WATCHDOG)
+/* Called by macro WATCHDOG_RESET */
+void hw_watchdog_reset(void)
+{
+	volatile gptmr_t *gptmr = (gptmr_t *) (MMAP_GPTMR);
+
+	gptmr->ocpw = 0xa5;
+}
+
+int watchdog_disable(void)
+{
+	volatile gptmr_t *gptmr = (gptmr_t *) (MMAP_GPTMR);
+
+	/* UserManual, once the wdog is disabled, wdog cannot be re-enabled */
+	gptmr->mode = 0;
+	gptmr->ctrl = 0;
+
+	puts("WATCHDOG:disabled\n");
+
+	return (0);
+}
+
+int watchdog_init(void)
+{
+
+	volatile gptmr_t *gptmr = (gptmr_t *) (MMAP_GPTMR);
+
+	gptmr->pre = CONFIG_WATCHDOG_TIMEOUT;
+	gptmr->cnt = CFG_TIMER_PRESCALER * 1000;
+
+	gptmr->mode = GPT_TMS_SGPIO;
+	gptmr->ctrl = GPT_CTRL_CE | GPT_CTRL_WDEN;
+	puts("WATCHDOG:enabled\n");
+
+	return (0);
+}
+#endif				/* CONFIG_HW_WATCHDOG */
--- a/cpu/mcf547x_8x/cpu_init.c
+++ b/cpu/mcf547x_8x/cpu_init.c
@ -0,0 +1,132 @@
+/*
+ *
+ * (C) Copyright 2000-2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * (C) Copyright 2007 Freescale Semiconductor, Inc.
+ * TsiChung Liew (Tsi-Chung.Liew@freescale.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 <MCD_dma.h>
+#include <asm/immap.h>
+
+/*
+ * Breath some life into the CPU...
+ *
+ * Set up the memory map,
+ * initialize a bunch of registers,
+ * initialize the UPM's
+ */
+void cpu_init_f(void)
+{
+	volatile gpio_t *gpio = (gpio_t *) MMAP_GPIO;
+	volatile fbcs_t *fbcs = (fbcs_t *) MMAP_FBCS;
+	volatile xlbarb_t *xlbarb = (volatile xlbarb_t *) MMAP_XARB;
+
+	xlbarb->adrto = 0x2000;
+	xlbarb->datto = 0x2000;
+	xlbarb->busto = 0x3000;
+
+	xlbarb->cfg = XARB_SR_AT | XARB_SR_DT;
+
+	/* Master Priority Enable */
+	xlbarb->pri = 0;
+	xlbarb->prien = 0xff;
+
+#if (defined(CFG_CS0_BASE) && defined(CFG_CS0_MASK) && defined(CFG_CS0_CTRL))
+	fbcs->csar0 = CFG_CS0_BASE;
+	fbcs->cscr0 = CFG_CS0_CTRL;
+	fbcs->csmr0 = CFG_CS0_MASK;
+#endif
+
+#if (defined(CFG_CS1_BASE) && defined(CFG_CS1_MASK) && defined(CFG_CS1_CTRL))
+	fbcs->csar1 = CFG_CS1_BASE;
+	fbcs->cscr1 = CFG_CS1_CTRL;
+	fbcs->csmr1 = CFG_CS1_MASK;
+#endif
+
+#if (defined(CFG_CS2_BASE) && defined(CFG_CS2_MASK) && defined(CFG_CS2_CTRL))
+	fbcs->csar2 = CFG_CS2_BASE;
+	fbcs->cscr2 = CFG_CS2_CTRL;
+	fbcs->csmr2 = CFG_CS2_MASK;
+#endif
+
+#if (defined(CFG_CS3_BASE) && defined(CFG_CS3_MASK) && defined(CFG_CS3_CTRL))
+	fbcs->csar3 = CFG_CS3_BASE;
+	fbcs->cscr3 = CFG_CS3_CTRL;
+	fbcs->csmr3 = CFG_CS3_MASK;
+#endif
+
+#if (defined(CFG_CS4_BASE) && defined(CFG_CS4_MASK) && defined(CFG_CS4_CTRL))
+	fbcs->csar4 = CFG_CS4_BASE;
+	fbcs->cscr4 = CFG_CS4_CTRL;
+	fbcs->csmr4 = CFG_CS4_MASK;
+#endif
+
+#if (defined(CFG_CS5_BASE) && defined(CFG_CS5_MASK) && defined(CFG_CS5_CTRL))
+	fbcs->csar5 = CFG_CS5_BASE;
+	fbcs->cscr5 = CFG_CS5_CTRL;
+	fbcs->csmr5 = CFG_CS5_MASK;
+#endif
+
+#ifdef CONFIG_FSL_I2C
+	gpio->par_feci2cirq = GPIO_PAR_FECI2CIRQ_SCL | GPIO_PAR_FECI2CIRQ_SDA;
+#endif
+
+	icache_enable();
+}
+
+/*
+ * initialize higher level parts of CPU like timers
+ */
+int cpu_init_r(void)
+{
+#if defined(CONFIG_CMD_NET) && defined(CONFIG_FSLDMAFEC)
+	MCD_initDma((dmaRegs *) (MMAP_MCDMA), (void *)(MMAP_SRAM + 512),
+		    MCD_RELOC_TASKS);
+#endif
+	return (0);
+}
+
+void uart_port_conf(void)
+{
+	volatile gpio_t *gpio = (gpio_t *) MMAP_GPIO;
+	volatile u8 *pscsicr = (u8 *) (CFG_UART_BASE + 0x40);
+
+	/* Setup Ports: */
+	switch (CFG_UART_PORT) {
+	case 0:
+		gpio->par_psc0 = (GPIO_PAR_PSC0_TXD0 | GPIO_PAR_PSC0_RXD0);
+		break;
+	case 1:
+		gpio->par_psc1 = (GPIO_PAR_PSC1_TXD1 | GPIO_PAR_PSC1_RXD1);
+		break;
+	case 2:
+		gpio->par_psc2 = (GPIO_PAR_PSC2_TXD2 | GPIO_PAR_PSC2_RXD2);
+		break;
+	case 3:
+		gpio->par_psc3 = (GPIO_PAR_PSC3_TXD3 | GPIO_PAR_PSC3_RXD3);
+		break;
+	}
+
+	*pscsicr &= 0xF8;
+}
--- a/cpu/mcf547x_8x/interrupts.c
+++ b/cpu/mcf547x_8x/interrupts.c
@ -0,0 +1,50 @@
+/*
+ *
+ * Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
+ * TsiChung Liew (Tsi-Chung.Liew@freescale.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
+ */
+
+/* CPU specific interrupt routine */
+#include <common.h>
+#include <asm/immap.h>
+
+int interrupt_init(void)
+{
+	volatile int0_t *intp = (int0_t *) (CFG_INTR_BASE);
+
+	/* Make sure all interrupts are disabled */
+	intp->imrh0 |= 0xFFFFFFFF;
+	intp->imrl0 |= 0xFFFFFFFF;
+
+	enable_interrupts();
+
+	return 0;
+}
+
+#if defined(CONFIG_SLTTMR)
+void dtimer_intr_setup(void)
+{
+	volatile int0_t *intp = (int0_t *) (CFG_INTR_BASE);
+
+	intp->icr0[CFG_TMRINTR_NO] = CFG_TMRINTR_PRI;
+	intp->imrh0 &= ~CFG_TMRINTR_MASK;
+}
+#endif
--- a/cpu/mcf547x_8x/pci.c
+++ b/cpu/mcf547x_8x/pci.c
@ -0,0 +1,167 @@
+/*
+ * Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
+ * TsiChung Liew (Tsi-Chung.Liew@freescale.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
+ */
+
+/*
+ * PCI Configuration space access support
+ */
+#include <common.h>
+#include <pci.h>
+#include <asm/io.h>
+#include <asm/immap.h>
+
+#if defined(CONFIG_PCI)
+/* System RAM mapped over PCI */
+#define CFG_PCI_SYS_MEM_BUS	CFG_SDRAM_BASE
+#define CFG_PCI_SYS_MEM_PHYS	CFG_SDRAM_BASE
+#define CFG_PCI_SYS_MEM_SIZE	(1024 * 1024 * 1024)
+
+#define cfg_read(val, addr, type, op)		*val = op((type)(addr));
+#define cfg_write(val, addr, type, op)		op((type *)(addr), (val));
+
+#define PCI_OP(rw, size, type, op, mask)				\
+int pci_##rw##_cfg_##size(struct pci_controller *hose,			\
+	pci_dev_t dev, int offset, type val)				\
+{									\
+	u32 addr = 0;							\
+	u16 cfg_type = 0;						\
+	addr = ((offset & 0xfc) | cfg_type | (dev)  | 0x80000000);	\
+	out_be32(hose->cfg_addr, addr);					\
+	cfg_##rw(val, hose->cfg_data + (offset & mask), type, op);	\
+	__asm__ __volatile__("nop");					\
+	__asm__ __volatile__("nop");					\
+	out_be32(hose->cfg_addr, addr & 0x7fffffff);			\
+	return 0;							\
+}
+
+PCI_OP(read, byte, u8 *, in_8, 3)
+PCI_OP(read, word, u16 *, in_le16, 2)
+PCI_OP(write, byte, u8, out_8, 3)
+PCI_OP(write, word, u16, out_le16, 2)
+PCI_OP(write, dword, u32, out_le32, 0)
+
+int pci_read_cfg_dword(struct pci_controller *hose, pci_dev_t dev,
+		       int offset, u32 * val)
+{
+	u32 addr;
+	u32 tmpv;
+	u32 mask = 2;		/* word access */
+	/* Read lower 16 bits */
+	addr = ((offset & 0xfc) | (dev) | 0x80000000);
+	out_be32(hose->cfg_addr, addr);
+	*val = (u32) in_le16((u16 *) (hose->cfg_data + (offset & mask)));
+	__asm__ __volatile__("nop");
+	out_be32(hose->cfg_addr, addr & 0x7fffffff);
+
+	/* Read upper 16 bits */
+	offset += 2;
+	addr = ((offset & 0xfc) | 1 | (dev) | 0x80000000);
+	out_be32(hose->cfg_addr, addr);
+	tmpv = (u32) in_le16((u16 *) (hose->cfg_data + (offset & mask)));
+	__asm__ __volatile__("nop");
+	out_be32(hose->cfg_addr, addr & 0x7fffffff);
+
+	/* combine results into dword value */
+	*val = (tmpv << 16) | *val;
+
+	return 0;
+}
+
+void pci_mcf547x_8x_init(struct pci_controller *hose)
+{
+	volatile pci_t *pci = (volatile pci_t *) MMAP_PCI;
+	volatile gpio_t *gpio = (gpio_t *) MMAP_GPIO;
+
+	/* Port configuration */
+	gpio->par_pcibg =
+	    GPIO_PAR_PCIBG_PCIBG0(3) | GPIO_PAR_PCIBG_PCIBG1(3) |
+	    GPIO_PAR_PCIBG_PCIBG2(3) | GPIO_PAR_PCIBG_PCIBG3(3) |
+	    GPIO_PAR_PCIBG_PCIBG4(3);
+	gpio->par_pcibr =
+	    GPIO_PAR_PCIBR_PCIBR0(3) | GPIO_PAR_PCIBR_PCIBR1(3) |
+	    GPIO_PAR_PCIBR_PCIBR2(3) | GPIO_PAR_PCIBR_PCIBR3(3) |
+	    GPIO_PAR_PCIBR_PCIBR4(3);
+
+	/* Assert reset bit */
+	pci->gscr |= PCI_GSCR_PR;
+
+	pci->tcr1 = PCI_TCR1_P;
+
+	/* Initiator windows */
+	pci->iw0btar = CFG_PCI_MEM_PHYS | (CFG_PCI_MEM_PHYS >> 16);
+	pci->iw1btar = CFG_PCI_IO_PHYS | (CFG_PCI_IO_PHYS >> 16);
+	pci->iw2btar = CFG_PCI_CFG_PHYS | (CFG_PCI_CFG_PHYS >> 16);
+
+	pci->iwcr =
+	    PCI_IWCR_W0C_EN | PCI_IWCR_W1C_EN | PCI_IWCR_W1C_IO |
+	    PCI_IWCR_W2C_EN | PCI_IWCR_W2C_IO;
+
+	pci->icr = 0;
+
+	/* Enable bus master and mem access */
+	pci->scr = PCI_SCR_B | PCI_SCR_M;
+
+	/* Cache line size and master latency */
+	pci->cr1 = PCI_CR1_CLS(8) | PCI_CR1_LTMR(0xF8);
+	pci->cr2 = 0;
+
+#ifdef CFG_PCI_BAR0
+	pci->bar0 = PCI_BAR_BAR0(CFG_PCI_BAR0);
+	pci->tbatr0a = CFG_PCI_TBATR0 | PCI_TBATR_EN;
+#endif
+#ifdef CFG_PCI_BAR1
+	pci->bar1 = PCI_BAR_BAR1(CFG_PCI_BAR1);
+	pci->tbatr1a = CFG_PCI_TBATR1 | PCI_TBATR_EN;
+#endif
+
+	/* Deassert reset bit */
+	pci->gscr &= ~PCI_GSCR_PR;
+	udelay(1000);
+
+	/* Enable PCI bus master support */
+	hose->first_busno = 0;
+	hose->last_busno = 0xff;
+
+	pci_set_region(hose->regions + 0, CFG_PCI_MEM_BUS, CFG_PCI_MEM_PHYS,
+		       CFG_PCI_MEM_SIZE, PCI_REGION_MEM);
+
+	pci_set_region(hose->regions + 1, CFG_PCI_IO_BUS, CFG_PCI_IO_PHYS,
+		       CFG_PCI_IO_SIZE, PCI_REGION_IO);
+
+	pci_set_region(hose->regions + 2, CFG_PCI_SYS_MEM_BUS,
+		       CFG_PCI_SYS_MEM_PHYS, CFG_PCI_SYS_MEM_SIZE,
+		       PCI_REGION_MEM | PCI_REGION_MEMORY);
+
+	hose->region_count = 3;
+
+	hose->cfg_addr = &(pci->car);
+	hose->cfg_data = (volatile unsigned char *)CFG_PCI_CFG_BUS;
+
+	pci_set_ops(hose, pci_read_cfg_byte, pci_read_cfg_word,
+		    pci_read_cfg_dword, pci_write_cfg_byte, pci_write_cfg_word,
+		    pci_write_cfg_dword);
+
+	/* Hose scan */
+	pci_register_hose(hose);
+	hose->last_busno = pci_hose_scan(hose);
+}
+#endif				/* CONFIG_PCI */
--- a/cpu/mcf547x_8x/slicetimer.c
+++ b/cpu/mcf547x_8x/slicetimer.c
@ -0,0 +1,112 @@
+/*
+ * (C) Copyright 2007 Freescale Semiconductor, Inc.
+ * TsiChung Liew (Tsi-Chung.Liew@freescale.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/timer.h>
+#include <asm/immap.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static ulong timestamp;
+
+#if defined(CONFIG_SLTTMR)
+#ifndef CFG_UDELAY_BASE
+#	error	"uDelay base not defined!"
+#endif
+
+#if !defined(CFG_TMR_BASE) || !defined(CFG_INTR_BASE) || !defined(CFG_TMRINTR_NO) || !defined(CFG_TMRINTR_MASK)
+#	error	"TMR_BASE, INTR_BASE, TMRINTR_NO or TMRINTR_MASk not defined!"
+#endif
+extern void dtimer_intr_setup(void);
+
+void udelay(unsigned long usec)
+{
+	volatile slt_t *timerp = (slt_t *) (CFG_UDELAY_BASE);
+	u32 now, freq;
+
+	/* 1 us period */
+	freq = CFG_TIMER_PRESCALER;
+
+	timerp->cr = 0;		/* Disable */
+	timerp->tcnt = usec * freq;
+	timerp->cr = SLT_CR_TEN;
+
+	now = timerp->cnt;
+	while (now != 0)
+		now = timerp->cnt;
+
+	timerp->sr |= SLT_SR_ST;
+	timerp->cr = 0;
+}
+
+void dtimer_interrupt(void *not_used)
+{
+	volatile slt_t *timerp = (slt_t *) (CFG_TMR_BASE);
+
+	/* check for timer interrupt asserted */
+	if ((CFG_TMRPND_REG & CFG_TMRINTR_MASK) == CFG_TMRINTR_PEND) {
+		timerp->sr |= SLT_SR_ST;
+		timestamp++;
+		return;
+	}
+}
+
+void timer_init(void)
+{
+	volatile slt_t *timerp = (slt_t *) (CFG_TMR_BASE);
+
+	timestamp = 0;
+
+	timerp->cr = 0;		/* disable timer */
+	timerp->tcnt = 0;
+	timerp->sr = SLT_SR_BE | SLT_SR_ST;	/* clear status */
+
+	/* initialize and enable timer interrupt */
+	irq_install_handler(CFG_TMRINTR_NO, dtimer_interrupt, 0);
+
+	/* Interrupt every ms */
+	timerp->tcnt = 1000 * CFG_TIMER_PRESCALER;
+
+	dtimer_intr_setup();
+
+	/* set a period of 1us, set timer mode to restart and
+	   enable timer and interrupt */
+	timerp->cr = SLT_CR_RUN | SLT_CR_IEN | SLT_CR_TEN;
+}
+
+void reset_timer(void)
+{
+	timestamp = 0;
+}
+
+ulong get_timer(ulong base)
+{
+	return (timestamp - base);
+}
+
+void set_timer(ulong t)
+{
+	timestamp = t;
+}
+#endif				/* CONFIG_SLTTMR */
--- a/cpu/mcf547x_8x/speed.c
+++ b/cpu/mcf547x_8x/speed.c
@ -0,0 +1,43 @@
+/*
+ *
+ * (C) Copyright 2000-2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
+ * TsiChung Liew (Tsi-Chung.Liew@freescale.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>
+
+/*
+ * get_clocks() fills in gd->cpu_clock and gd->bus_clk
+ */
+int get_clocks(void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	gd->bus_clk = CFG_CLK;
+	gd->cpu_clk = (gd->bus_clk * 2);
+	return (0);
+}
--- a/cpu/mcf547x_8x/start.S
+++ b/cpu/mcf547x_8x/start.S
@ -0,0 +1,361 @@
+/*
+ * Copyright (C) 2003	Josef Baumgartner <josef.baumgartner@telex.de>
+ * Based on code from Bernhard Kuhn <bkuhn@metrowerks.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 <config.h>
+#include "version.h"
+
+#ifndef	 CONFIG_IDENT_STRING
+#define	 CONFIG_IDENT_STRING ""
+#endif
+
+/* last three long word reserved for cache status */
+#define ICACHE_STATUS	(CFG_INIT_RAM_ADDR+CFG_INIT_RAM_END- 4)
+#define DCACHE_STATUS	(CFG_INIT_RAM_ADDR+CFG_INIT_RAM_END- 8)
+#define CACR_STATUS	(CFG_INIT_RAM_ADDR+CFG_INIT_RAM_END-12)
+
+#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;
+
+.text
+/*
+ *	Vector table. This is used for initial platform startup.
+ *	These vectors are to catch any un-intended traps.
+ */
+_vectors:
+
+INITSP:		.long	0x00000000	/* Initial SP	*/
+INITPC:		.long	_START	/* Initial PC 		*/
+vector02:	.long	_FAULT	/* Access Error		*/
+vector03:	.long	_FAULT	/* Address Error	*/
+vector04:	.long	_FAULT	/* Illegal Instruction	*/
+vector05:	.long	_FAULT	/* Reserved		*/
+vector06:	.long	_FAULT	/* Reserved		*/
+vector07:	.long	_FAULT	/* Reserved		*/
+vector08:	.long	_FAULT	/* Privilege Violation	*/
+vector09:	.long	_FAULT	/* Trace		*/
+vector0A:	.long	_FAULT	/* Unimplemented A-Line	*/
+vector0B:	.long	_FAULT	/* Unimplemented F-Line	*/
+vector0C:	.long	_FAULT	/* Debug Interrupt	*/
+vector0D:	.long	_FAULT	/* Reserved		*/
+vector0E:	.long	_FAULT	/* Format Error		*/
+vector0F:	.long	_FAULT	/* Unitialized Int.	*/
+
+/* Reserved */
+vector10_17:
+.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+
+vector18:	.long	_FAULT	/* Spurious Interrupt	*/
+vector19:	.long	_FAULT	/* Autovector Level 1	*/
+vector1A:	.long	_FAULT	/* Autovector Level 2	*/
+vector1B:	.long	_FAULT	/* Autovector Level 3	*/
+vector1C:	.long	_FAULT	/* Autovector Level 4	*/
+vector1D:	.long	_FAULT	/* Autovector Level 5	*/
+vector1E:	.long	_FAULT	/* Autovector Level 6	*/
+vector1F:	.long	_FAULT	/* Autovector Level 7	*/
+
+/* TRAP #0 - #15 */
+vector20_2F:
+.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+
+/* Reserved	*/
+vector30_3F:
+.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+
+vector64_127:
+.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
+
+vector128_191:
+.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
+
+vector192_255:
+.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
+
+	.text
+
+	.globl	_start
+_start:
+	nop
+	nop
+	move.w #0x2700,%sr		/* Mask off Interrupt */
+
+	/* Set vector base register at the beginning of the Flash */
+	move.l	#CFG_FLASH_BASE, %d0
+	movec	%d0, %VBR
+
+	move.l	#(CFG_INIT_RAM_ADDR + CFG_INIT_RAM_CTRL), %d0
+	movec	%d0, %RAMBAR0
+
+	move.l	#(CFG_INIT_RAM1_ADDR + CFG_INIT_RAM1_CTRL), %d0
+	movec	%d0, %RAMBAR1
+
+	move.l	#CFG_MBAR, %d0		/* set MBAR address */
+	move.c	%d0, %MBAR
+
+	/* invalidate and disable cache */
+	move.l	#0x01040100, %d0	/* Invalidate cache cmd */
+	movec	%d0, %CACR		/* Invalidate cache */
+	move.l	#0, %d0
+	movec	%d0, %ACR0
+	movec	%d0, %ACR1
+	movec	%d0, %ACR2
+	movec	%d0, %ACR3
+
+	/* initialize general use internal ram */
+	move.l #0, %d0
+	move.l #(ICACHE_STATUS), %a1	/* icache */
+	move.l #(DCACHE_STATUS), %a2	/* icache */
+	move.l #(CACR_STATUS), %a3	/* CACR */
+	move.l %d0, (%a1)
+	move.l %d0, (%a2)
+	move.l %d0, (%a3)
+
+	/* set stackpointer to end of internal ram to get some stackspace for the
+	   first c-code */
+	move.l	#(CFG_INIT_RAM_ADDR + CFG_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 #CFG_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 - CFG_MONITOR_BASE), %a1
+	jmp	(%a1)
+
+in_ram:
+
+clear_bss:
+	/*
+	 * Now clear BSS segment
+	 */
+	move.l	%a0, %a1
+	add.l	#(_sbss - CFG_MONITOR_BASE),%a1
+	move.l	%a0, %d1
+	add.l	#(_ebss - CFG_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 - CFG_MONITOR_BASE),%a1
+	move.l	%a1,%a5		/* * fix got pointer register a5 */
+
+	move.l	%a0, %a2
+	add.l	#(__got_end - CFG_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 - CFG_MONITOR_BASE), %a1
+
+	/* set parameters for board_init_r */
+	move.l %a0,-(%sp)		/* dest_addr */
+	move.l %d0,-(%sp)		/* gd */
+	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
+
+/*------------------------------------------------------------------------------*/
+/* cache functions */
+	.globl	icache_enable
+icache_enable:
+	move.l	#(CFG_SDRAM_BASE + 0x1c000), %d0
+	movec	%d0, %ACR2			/* Enable cache */
+
+	move.l	#0x020C8100, %d0		/* Setup cache mask */
+	movec	%d0, %CACR			/* Enable cache */
+	nop
+
+	move.l #(ICACHE_STATUS), %a1
+	moveq	#1, %d0
+	move.l	%d0, (%a1)
+	rts
+
+	.globl	icache_disable
+icache_disable:
+	move.l	#0x000C8100, %d0		/* Setup cache mask */
+	movec	%d0, %CACR			/* Disable cache */
+	clr.l	%d0				/* Setup cache mask */
+	movec	%d0, %ACR2
+	movec	%d0, %ACR3
+
+	move.l #(ICACHE_STATUS), %a1
+	moveq	#0, %d0
+	move.l	%d0, (%a1)
+	rts
+
+	.globl	icache_invalid
+icache_invalid:
+	move.l	#0x000C8100, %d0		/* Setup cache mask */
+	movec	%d0, %CACR			/* Enable cache */
+	rts
+
+	.globl	icache_status
+icache_status:
+	move.l #(ICACHE_STATUS), %a1
+	move.l	(%a1), %d0
+	rts
+
+	.globl	dcache_enable
+dcache_enable:
+	bsr	icache_disable
+
+	move.l	#(CFG_SDRAM_BASE + 0xc000), %d0
+	movec	%d0, %ACR0			/* Enable cache */
+
+	move.l	#0xA30C8100, %d0		/* Invalidate cache cmd */
+	movec	%d0, %CACR			/* Invalidate cache */
+
+	move.l #(DCACHE_STATUS), %a1
+	moveq	#1, %d0
+	move.l	%d0, (%a1)
+	rts
+
+	.globl	dcache_disable
+dcache_disable:
+	move.l	#0xA30C8100, %d0		/* Setup cache mask */
+	movec	%d0, %CACR			/* Disable cache */
+	clr.l	%d0				/* Setup cache mask */
+	movec	%d0, %ACR0
+	movec	%d0, %ACR1
+
+	move.l #(DCACHE_STATUS), %a1
+	moveq	#0, %d0
+	move.l	%d0, (%a1)
+	rts
+
+	.globl	dcache_status
+dcache_status:
+	move.l #(DCACHE_STATUS), %a1
+	move.l	(%a1), %d0
+	rts
+
+/*------------------------------------------------------------------------------*/
+
+	.globl	version_string
+version_string:
+	.ascii U_BOOT_VERSION
+	.ascii " (", __DATE__, " - ", __TIME__, ")"
+	.ascii CONFIG_IDENT_STRING, "\0"