[U-Boot-Users] [PATCH] ColdFire: Add MCF5227x cpu and M52277EVB support-1
Tsi-Chung Liew
Tsi-Chung.Liew at freescale.com
Tue Jan 15 19:32:03 CET 2008
From: TsiChungLiew <Tsi-Chung.Liew at freescale.com>
Signed-off-by: TsiChungLiew <Tsi-Chung.Liew at freescale.com>
---
MAINTAINERS | 1 +
MAKEALL | 1 +
Makefile | 3 +
README | 1 +
board/freescale/m52277evb/Makefile | 44 ++++++
board/freescale/m52277evb/config.mk | 25 ++++
board/freescale/m52277evb/m52277evb.c | 86 +++++++++++
board/freescale/m52277evb/u-boot.lds | 145 +++++++++++++++++++
doc/README.m52277evb | 237 +++++++++++++++++++++++++++++++
include/asm-m68k/global_data.h | 3 +
include/asm-m68k/immap.h | 34 +++++
include/configs/M52277EVB.h | 251 +++++++++++++++++++++++++++++++++
lib_m68k/board.c | 10 ++
13 files changed, 841 insertions(+), 0 deletions(-)
create mode 100644 board/freescale/m52277evb/Makefile
create mode 100644 board/freescale/m52277evb/config.mk
create mode 100644 board/freescale/m52277evb/m52277evb.c
create mode 100644 board/freescale/m52277evb/u-boot.lds
create mode 100644 doc/README.m52277evb
create mode 100644 include/configs/M52277EVB.h
diff --git a/MAINTAINERS b/MAINTAINERS
index 02698c8..477da87 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -627,6 +627,7 @@ Zachary P. Landau <zachary.landau at labxtechnologies.com>
TsiChung Liew <Tsi-Chung.Liew at freescale.com>
+ M52277EVB mcf5227x
M5235EVB mcf52x2
M5329EVB mcf532x
M5373EVB mcf532x
diff --git a/MAKEALL b/MAKEALL
index 1f59532..37e1104 100755
--- a/MAKEALL
+++ b/MAKEALL
@@ -635,6 +635,7 @@ LIST_coldfire=" \
EB+MCF-EV123 \
EB+MCF-EV123_internal \
idmr \
+ M52277EVB \
M5235EVB \
M5249EVB \
M5253EVB \
diff --git a/Makefile b/Makefile
index f541392..023ae52 100644
--- a/Makefile
+++ b/Makefile
@@ -1721,6 +1721,9 @@ ZPC1900_config: unconfig
## Coldfire
#########################################################################
+M52277EVB_config: unconfig
+ @$(MKCONFIG) -a M52277EVB m68k mcf5227x m52277evb freescale
+
M5235EVB_config \
M5235EVB_Flash16_config \
M5235EVB_Flash32_config: unconfig
diff --git a/README b/README
index 57fc01a..4962c7a 100644
--- a/README
+++ b/README
@@ -136,6 +136,7 @@ Directory Hierarchy:
- i386 Files specific to i386 CPUs
- ixp Files specific to Intel XScale IXP CPUs
- mcf52x2 Files specific to Freescale ColdFire MCF52x2 CPUs
+ - mcf5227x Files specific to Freescale ColdFire MCF5227x CPUs
- mcf532x Files specific to Freescale ColdFire MCF5329 CPUs
- mcf5445x Files specific to Freescale ColdFire MCF5445x CPUs
- mips Files specific to MIPS CPUs
diff --git a/board/freescale/m52277evb/Makefile b/board/freescale/m52277evb/Makefile
new file mode 100644
index 0000000..981763d
--- /dev/null
+++ b/board/freescale/m52277evb/Makefile
@@ -0,0 +1,44 @@
+#
+# (C) Copyright 2000-2003
+# Wolfgang Denk, DENX Software Engineering, wd at 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
+
+LIB = $(obj)lib$(BOARD).a
+
+COBJS = $(BOARD).o
+
+SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS := $(addprefix $(obj),$(COBJS))
+SOBJS := $(addprefix $(obj),$(SOBJS))
+
+$(LIB): $(obj).depend $(OBJS)
+ $(AR) $(ARFLAGS) $@ $(OBJS)
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/freescale/m52277evb/config.mk b/board/freescale/m52277evb/config.mk
new file mode 100644
index 0000000..ce014ed
--- /dev/null
+++ b/board/freescale/m52277evb/config.mk
@@ -0,0 +1,25 @@
+#
+# (C) Copyright 2000-2003
+# Wolfgang Denk, DENX Software Engineering, wd at denx.de.
+# Coldfire contribution by Bernhard Kuhn <bkuhn at 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
+#
+
+TEXT_BASE = 0
diff --git a/board/freescale/m52277evb/m52277evb.c b/board/freescale/m52277evb/m52277evb.c
new file mode 100644
index 0000000..98424c8
--- /dev/null
+++ b/board/freescale/m52277evb/m52277evb.c
@@ -0,0 +1,86 @@
+/*
+ * (C) Copyright 2000-2003
+ * Wolfgang Denk, DENX Software Engineering, wd at denx.de.
+ *
+ * Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
+ * TsiChung Liew (Tsi-Chung.Liew at 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/immap.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int checkboard(void)
+{
+ puts("Board: ");
+ puts("Freescale M52277 EVB\n");
+ return 0;
+};
+
+long int initdram(int board_type)
+{
+ volatile sdramc_t *sdram = (volatile sdramc_t *)(MMAP_SDRAM);
+ u32 dramsize, i;
+
+ dramsize = CFG_SDRAM_SIZE * 0x100000;
+
+ for (i = 0x13; i < 0x20; i++) {
+ if (dramsize == (1 << i))
+ break;
+ }
+ i--;
+
+ sdram->sdcs0 = (CFG_SDRAM_BASE | i);
+
+ sdram->sdcfg1 = CFG_SDRAM_CFG1;
+ sdram->sdcfg2 = CFG_SDRAM_CFG2;
+
+ /* Issue PALL */
+ sdram->sdcr = CFG_SDRAM_CTRL | 2;
+
+ /* Issue LEMR */
+ /*sdram->sdmr = CFG_SDRAM_EMOD; */
+ sdram->sdmr = CFG_SDRAM_MODE;
+
+ udelay(1000);
+
+ /* Issue PALL */
+ sdram->sdcr = CFG_SDRAM_CTRL | 2;
+
+ /* Perform two refresh cycles */
+ sdram->sdcr = CFG_SDRAM_CTRL | 4;
+ sdram->sdcr = CFG_SDRAM_CTRL | 4;
+
+ sdram->sdcr = (CFG_SDRAM_CTRL & ~0x80000000) | 0x10000c00;
+
+ udelay(100);
+
+ return (dramsize);
+};
+
+int testdram(void)
+{
+ /* TODO: XXX XXX XXX */
+ printf("DRAM test not implemented!\n");
+
+ return (0);
+}
diff --git a/board/freescale/m52277evb/u-boot.lds b/board/freescale/m52277evb/u-boot.lds
new file mode 100644
index 0000000..9125bfc
--- /dev/null
+++ b/board/freescale/m52277evb/u-boot.lds
@@ -0,0 +1,145 @@
+/*
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd at denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+OUTPUT_ARCH(m68k)
+SEARCH_DIR(/lib); SEARCH_DIR(/usr/lib); SEARCH_DIR(/usr/local/lib);
+/* Do we need any of these for elf?
+ __DYNAMIC = 0; */
+SECTIONS
+{
+ /* Read-only sections, merged into text segment: */
+ . = + SIZEOF_HEADERS;
+ .interp : { *(.interp) }
+ .hash : { *(.hash) }
+ .dynsym : { *(.dynsym) }
+ .dynstr : { *(.dynstr) }
+ .rel.text : { *(.rel.text) }
+ .rela.text : { *(.rela.text) }
+ .rel.data : { *(.rel.data) }
+ .rela.data : { *(.rela.data) }
+ .rel.rodata : { *(.rel.rodata) }
+ .rela.rodata : { *(.rela.rodata) }
+ .rel.got : { *(.rel.got) }
+ .rela.got : { *(.rela.got) }
+ .rel.ctors : { *(.rel.ctors) }
+ .rela.ctors : { *(.rela.ctors) }
+ .rel.dtors : { *(.rel.dtors) }
+ .rela.dtors : { *(.rela.dtors) }
+ .rel.bss : { *(.rel.bss) }
+ .rela.bss : { *(.rela.bss) }
+ .rel.plt : { *(.rel.plt) }
+ .rela.plt : { *(.rela.plt) }
+ .init : { *(.init) }
+ .plt : { *(.plt) }
+ .text :
+ {
+ /* WARNING - the following is hand-optimized to fit within */
+ /* the sector layout of our flash chips! XXX FIXME XXX */
+
+ cpu/mcf5227x/start.o (.text)
+ cpu/mcf5227x/libmcf5227x.a (.text)
+ lib_m68k/libm68k.a (.text)
+ lib_generic/libgeneric.a (.text)
+ common/cmd_mem.o (.text)
+ common/main.o (.text)
+
+ . = DEFINED(env_offset) ? env_offset : .;
+ common/environment.o (.text)
+
+ *(.text)
+ *(.fixup)
+ *(.got1)
+ }
+ _etext = .;
+ PROVIDE (etext = .);
+ .rodata :
+ {
+ *(.rodata)
+ *(.rodata1)
+ }
+ .fini : { *(.fini) } =0
+ .ctors : { *(.ctors) }
+ .dtors : { *(.dtors) }
+
+ /* Read-write section, merged into data segment: */
+ . = (. + 0x00FF) & 0xFFFFFF00;
+ _erotext = .;
+ PROVIDE (erotext = .);
+
+ .reloc :
+ {
+ __got_start = .;
+ *(.got)
+ __got_end = .;
+ _GOT2_TABLE_ = .;
+ *(.got2)
+ _FIXUP_TABLE_ = .;
+ *(.fixup)
+ }
+ __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >>2;
+ __fixup_entries = (. - _FIXUP_TABLE_)>>2;
+
+ .data :
+ {
+ *(.data)
+ *(.data1)
+ *(.sdata)
+ *(.sdata2)
+ *(.dynamic)
+ CONSTRUCTORS
+ }
+ _edata = .;
+ PROVIDE (edata = .);
+
+ . = .;
+ __u_boot_cmd_start = .;
+ .u_boot_cmd : { *(.u_boot_cmd) }
+ __u_boot_cmd_end = .;
+
+
+ . = .;
+ __start___ex_table = .;
+ __ex_table : { *(__ex_table) }
+ __stop___ex_table = .;
+
+ . = ALIGN(256);
+ __init_begin = .;
+ .text.init : { *(.text.init) }
+ .data.init : { *(.data.init) }
+ . = ALIGN(256);
+ __init_end = .;
+
+ __bss_start = .;
+ .bss :
+ {
+ _sbss = .;
+ *(.sbss) *(.scommon)
+ *(.dynbss)
+ *(.bss)
+ *(COMMON)
+ . = ALIGN(4);
+ _ebss = .;
+ }
+ _end = . ;
+ PROVIDE (end = .);
+}
diff --git a/doc/README.m52277evb b/doc/README.m52277evb
new file mode 100644
index 0000000..de1daba
--- /dev/null
+++ b/doc/README.m52277evb
@@ -0,0 +1,237 @@
+Freescale MCF52277EVB ColdFire Development Board
+================================================
+
+TsiChung Liew(Tsi-Chung.Liew at freescale.com)
+Created Jan 8, 2008
+===========================================
+
+
+Changed files:
+==============
+
+- board/freescale/m52277evb/m52277evb.c Dram setup
+- board/freescale/m52277evb/Makefile Makefile
+- board/freescale/m52277evb/config.mk config make
+- board/freescale/m52277evb/u-boot.lds Linker description
+
+- cpu/mcf5227x/cpu.c cpu specific code
+- cpu/mcf5227x/cpu_init.c FBCS, Mux pins, icache and RTC extra regs
+- cpu/mcf5227x/interrupts.c cpu specific interrupt support
+- cpu/mcf5227x/speed.c system, flexbus, and cpu clock
+- cpu/mcf5227x/Makefile Makefile
+- cpu/mcf5227x/config.mk config make
+- cpu/mcf5227x/start.S start up assembly code
+
+- doc/README.m52277evb This readme file
+
+- drivers/serial/mcfuart.c ColdFire common UART driver
+- drivers/rtc/mcfrtc.c Realtime clock Driver
+
+- include/asm-m68k/bitops.h Bit operation function export
+- include/asm-m68k/byteorder.h Byte order functions
+- include/asm-m68k/crossbar.h CrossBar structure and definition
+- include/asm-m68k/dspi.h DSPI structure and definition
+- include/asm-m68k/edma.h eDMA structure and definition
+- include/asm-m68k/flexbus.h FlexBus structure and definition
+- include/asm-m68k/fsl_i2c.h I2C structure and definition
+- include/asm-m68k/global_data.h Global data structure
+- include/asm-m68k/immap.h ColdFire specific header file and driver macros
+- include/asm-m68k/immap_5227x.h mcf5227x specific header file
+- include/asm-m68k/io.h io functions
+- include/asm-m68k/lcd.h LCD structure and definition
+- include/asm-m68k/m5227x.h mcf5227x specific header file
+- include/asm-m68k/posix_types.h Posix
+- include/asm-m68k/processor.h header file
+- include/asm-m68k/ptrace.h Exception structure
+- include/asm-m68k/rtc.h Realtime clock header file
+- include/asm-m68k/ssi.h SSI structure and definition
+- include/asm-m68k/string.h String function export
+- include/asm-m68k/timer.h Timer structure and definition
+- include/asm-m68k/types.h Data types definition
+- include/asm-m68k/uart.h Uart structure and definition
+- include/asm-m68k/u-boot.h u-boot structure
+
+- include/configs/M52277EVB.h Board specific configuration file
+
+- lib_m68k/board.c board init function
+- lib_m68k/cache.c
+- lib_m68k/interrupts Coldfire common interrupt functions
+- lib_m68k/m68k_linux.c
+- lib_m68k/time.c Timer functions (Dma timer and PIT)
+- lib_m68k/traps.c Exception init code
+
+1 MCF52277 specific Options/Settings
+====================================
+1.1 pre-loader is no longer suppoer in this coldfire family
+
+1.2 Configuration settings for M52277EVB Development Board
+CONFIG_MCF5227x -- define for all MCF5227x CPUs
+CONFIG_M52277 -- define for all Freescale MCF52277 CPUs
+CONFIG_M52277EVB -- define for M52277EVB board
+
+CONFIG_MCFUART -- define to use common CF Uart driver
+CFG_UART_PORT -- define UART port number, start with 0, 1 and 2
+CONFIG_BAUDRATE -- define UART baudrate
+
+CONFIG_MCFRTC -- define to use common CF RTC driver
+CFG_MCFRTC_BASE -- provide base address for RTC in immap.h
+CFG_RTC_OSCILLATOR -- define RTC clock frequency
+RTC_DEBUG -- define to show RTC debug message
+CONFIG_CMD_DATE -- enable to use date feature in u-boot
+
+CONFIG_MCFTMR -- define to use DMA timer
+CONFIG_MCFPIT -- define to use PIT timer
+
+CONFIG_FSL_I2C -- define to use FSL common I2C driver
+CONFIG_HARD_I2C -- define for I2C hardware support
+CONFIG_SOFT_I2C -- define for I2C bit-banged
+CFG_I2C_SPEED -- define for I2C speed
+CFG_I2C_SLAVE -- define for I2C slave address
+CFG_I2C_OFFSET -- define for I2C base address offset
+CFG_IMMR -- define for MBAR offset
+
+CFG_MBAR -- define MBAR offset
+
+CONFIG_MONITOR_IS_IN_RAM -- Not support
+
+CFG_INIT_RAM_ADDR -- defines the base address of the MCF52277 internal SRAM
+
+CFG_CSn_BASE -- defines the Chip Select Base register
+CFG_CSn_MASK -- defines the Chip Select Mask register
+CFG_CSn_CTRL -- defines the Chip Select Control register
+
+CFG_SDRAM_BASE -- defines the DRAM Base
+
+CONFIG_LCD and CONFIG_CMD_USB are not supported in this current u-boot,
+update will be provided at later time
+
+2. MEMORY MAP UNDER U-BOOT AND LINUX KERNEL
+===========================================
+2.1. System memory map:
+ Flash: 0x00000000-0x3FFFFFFF (1024MB)
+ DDR: 0x40000000-0x7FFFFFFF (1024MB)
+ SRAM: 0x80000000-0x8FFFFFFF (256MB)
+ IP: 0xF0000000-0xFFFFFFFF (256MB)
+
+2.2. For the initial bringup, we adopted a consistent memory scheme between u-boot and
+ linux kernel, you can customize it based on your system requirements:
+ Flash0: 0x00000000-0x00FFFFFF (16MB)
+
+ DDR: 0x40000000-0x4FFFFFFF (64MB)
+ SRAM: 0x80000000-0x80007FFF (32KB)
+ IP: 0xFC000000-0xFC0FFFFF (64KB)
+
+3. COMPILATION
+==============
+3.1 To create U-Boot the gcc-4.1-xx compiler set (ColdFire ELF or
+uClinux version) from codesourcery.com was used. Download it from:
+http://www.codesourcery.com/gnu_toolchains/coldfire/download.html
+
+3.2 Compilation
+ export CROSS_COMPILE=cross-compile-prefix
+ cd u-boot-1.x.x
+ make distclean
+ make M52277EVB_config
+ make
+
+4. SCREEN DUMP
+==============
+4.1 M52277EVB Development board
+ (NOTE: May not show exactly the same)
+
+U-Boot 1.3.1 (Jan 8 2008 - 12:44:08)
+
+CPU: Freescale MCF52277 (Mask:6c Version:0)
+ CPU CLK 160 Mhz BUS CLK 80 Mhz FLB CLK 80 MHZ
+ INP CLK 16 Mhz VCO CLK 480 Mhz
+Board: Freescale 52277 EVB
+I2C: ready
+DRAM: 64 MB
+FLASH: 16 MB
+In: serial
+Out: serial
+Err: serial
+-> print
+baudrate=115200
+hostname=M52277EVB
+inpclk=16000000
+loadaddr=(0x40000000 + 0x10000)
+load=tftp ${loadaddr) ${u-boot}
+upd=run load; run prog
+prog=prot off 0 3ffff;era 0 3ffff;cp.b ${loadaddr} 0 ${filesize};save
+u-boot=u-boot.bin
+stdin=serial
+stdout=serial
+stderr=serial
+mem=65024k
+
+Environment size: 280/32764 bytes
+-> bdinfo
+memstart = 0x40000000
+memsize = 0x04000000
+flashstart = 0x00000000
+flashsize = 0x01000000
+flashoffset = 0x00000000
+sramstart = 0x80000000
+sramsize = 0x00008000
+mbar = 0xFC000000
+busfreq = 80 MHz
+flbfreq = 80 Mhz
+inpfreq = 16 Mhz
+vcofreq = 480 Mhz
+
+baudrate = 115200 bps
+->
+-> help
+? - alias for 'help'
+autoscr - run script from memory
+base - print or set address offset
+bdinfo - print Board Info structure
+boot - boot default, i.e., run 'bootcmd'
+bootd - boot default, i.e., run 'bootcmd'
+bootelf - Boot from an ELF image in memory
+bootm - boot application image from memory
+bootp - boot image via network using BootP/TFTP protocol
+bootvx - Boot vxWorks from an ELF image
+cmp - memory compare
+coninfo - print console devices and information
+cp - memory copy
+crc32 - checksum calculation
+date - get/set/reset date & time
+dcache - enable or disable data cache
+echo - echo args to console
+erase - erase FLASH memory
+flinfo - print FLASH memory information
+go - start application at address 'addr'
+help - print online help
+icache - enable or disable instruction cache
+icrc32 - checksum calculation
+iloop - infinite loop on address range
+imd - i2c memory display
+iminfo - print header information for application image
+imls - list all images found in flash
+imm - i2c memory modify (auto-incrementing)
+imw - memory write (fill)
+inm - memory modify (constant address)
+iprobe - probe to discover valid I2C chip addresses
+itest - return true/false on integer compare
+loadb - load binary file over serial line (kermit mode)
+loads - load S-Record file over serial line
+loady - load binary file over serial line (ymodem mode)
+loop - infinite loop on address range
+ls - list files in a directory (default /)
+md - memory display
+mm - memory modify (auto-incrementing)
+mtest - simple RAM test
+mw - memory write (fill)
+nm - memory modify (constant address)
+ping - send ICMP ECHO_REQUEST to network host
+printenv- print environment variables
+protect - enable or disable FLASH write protection
+reset - Perform RESET of the CPU
+run - run commands in an environment variable
+saveenv - save environment variables to persistent storage
+setenv - set environment variables
+sleep - delay execution for some time
+version - print monitor version
+->
diff --git a/include/asm-m68k/global_data.h b/include/asm-m68k/global_data.h
index 9d9894b..1e26eb0 100644
--- a/include/asm-m68k/global_data.h
+++ b/include/asm-m68k/global_data.h
@@ -53,6 +53,9 @@ typedef struct global_data {
unsigned long env_addr; /* Address of Environment struct */
unsigned long env_valid; /* Checksum of Environment valid? */
unsigned long have_console; /* serial_init() was called */
+#if defined(CONFIG_LCD) || defined(CONFIG_VIDEO)
+ unsigned long fb_base; /* Base addr of framebuffer memory */
+#endif
#ifdef CONFIG_BOARD_TYPES
unsigned long board_type;
#endif
diff --git a/include/asm-m68k/immap.h b/include/asm-m68k/immap.h
index 852d941..9dd9707 100644
--- a/include/asm-m68k/immap.h
+++ b/include/asm-m68k/immap.h
@@ -26,6 +26,40 @@
#ifndef __IMMAP_H
#define __IMMAP_H
+#ifdef CONFIG_M52277
+#include <asm/immap_5227x.h>
+#include <asm/m5227x.h>
+
+#define CFG_UART_BASE (MMAP_UART0 + (CFG_UART_PORT * 0x4000))
+
+#define CFG_MCFRTC_BASE (MMAP_RTC)
+
+#ifdef CONFIG_LCD
+#define CFG_LCD_BASE (MMAP_LCD)
+#endif
+
+/* Timer */
+#ifdef CONFIG_MCFTMR
+#define CFG_UDELAY_BASE (MMAP_DTMR0)
+#define CFG_TMR_BASE (MMAP_DTMR1)
+#define CFG_TMRPND_REG (((volatile int0_t *)(CFG_INTR_BASE))->iprh0)
+#define CFG_TMRINTR_NO (INT0_HI_DTMR1)
+#define CFG_TMRINTR_MASK (INTC_IPRH_INT33)
+#define CFG_TMRINTR_PEND (CFG_TMRINTR_MASK)
+#define CFG_TMRINTR_PRI (6)
+#define CFG_TIMER_PRESCALER (((gd->bus_clk / 1000000) - 1) << 8)
+#endif
+
+#ifdef CONFIG_MCFPIT
+#define CFG_UDELAY_BASE (MMAP_PIT0)
+#define CFG_PIT_BASE (MMAP_PIT1)
+#define CFG_PIT_PRESCALE (6)
+#endif
+
+#define CFG_INTR_BASE (MMAP_INTC0)
+#define CFG_NUM_IRQS (128)
+#endif /* CONFIG_M52277 */
+
#ifdef CONFIG_M5235
#include <asm/immap_5235.h>
#include <asm/m5235.h>
diff --git a/include/configs/M52277EVB.h b/include/configs/M52277EVB.h
new file mode 100644
index 0000000..ab574d5
--- /dev/null
+++ b/include/configs/M52277EVB.h
@@ -0,0 +1,251 @@
+/*
+ * Configuation settings for the Freescale MCF52277 EVB board.
+ *
+ * Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
+ * TsiChung Liew (Tsi-Chung.Liew at 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
+ */
+
+/*
+ * board/config.h - configuration options, board specific
+ */
+
+#ifndef _M52277EVB_H
+#define _M52277EVB_H
+
+/*
+ * High Level Configuration Options
+ * (easy to change)
+ */
+#define CONFIG_MCF5227x /* define processor family */
+#define CONFIG_M52277 /* define processor type */
+#define CONFIG_M52277EVB /* M52277EVB board */
+
+#undef DEBUG
+
+#define CONFIG_MCFUART
+#define CFG_UART_PORT (0)
+#define CONFIG_BAUDRATE 115200
+#define CFG_BAUDRATE_TABLE { 9600 , 19200 , 38400 , 57600, 115200 }
+
+#undef CONFIG_WATCHDOG
+
+#define CONFIG_TIMESTAMP /* Print image info with timestamp */
+
+/*
+ * BOOTP options
+ */
+#define CONFIG_BOOTP_BOOTFILESIZE
+#define CONFIG_BOOTP_BOOTPATH
+#define CONFIG_BOOTP_GATEWAY
+#define CONFIG_BOOTP_HOSTNAME
+
+/* Command line configuration */
+#include <config_cmd_default.h>
+
+#define CONFIG_CMD_CACHE
+#define CONFIG_CMD_DATE
+#define CONFIG_CMD_ELF
+#define CONFIG_CMD_FLASH
+#define CONFIG_CMD_I2C
+#define CONFIG_CMD_JFFS2
+#define CONFIG_CMD_LOADB
+#define CONFIG_CMD_LOADS
+#define CONFIG_CMD_MEMORY
+#define CONFIG_CMD_MISC
+#undef CONFIG_CMD_NET
+#define CONFIG_CMD_REGINFO
+#undef CONFIG_CMD_USB
+#undef CONFIG_CMD_BMP
+
+#define CONFIG_HOSTNAME M52277EVB
+#define CONFIG_EXTRA_ENV_SETTINGS \
+ "inpclk=" MK_STR(CFG_INPUT_CLKSRC) "\0" \
+ "loadaddr=" MK_STR(CFG_LOAD_ADDR) "\0" \
+ "u-boot=u-boot.bin\0" \
+ "load=tftp ${loadaddr) ${u-boot}\0" \
+ "upd=run load; run prog\0" \
+ "prog=prot off 0 0x3ffff;" \
+ "era 0 3ffff;" \
+ "cp.b ${loadaddr} 0 ${filesize};" \
+ "save\0" \
+ ""
+
+/* LCD */
+#ifdef CONFIG_CMD_BMP
+#define CONFIG_LCD
+#define CONFIG_SPLASH_SCREEN
+#define CONFIG_LCD_LOGO
+#define CONFIG_SHARP_LQ035Q7DH06
+#endif
+
+/* USB */
+#ifdef CONFIG_CMD_USB
+#define CONFIG_USB_EHCI
+#define CONFIG_USB_STORAGE
+#define CONFIG_DOS_PARTITION
+#define CONFIG_MAC_PARTITION
+#define CONFIG_ISO_PARTITION
+#define CFG_USB_EHCI_REGS_BASE 0xFC0B0000
+#define CFG_USB_EHCI_CPU_INIT
+#endif
+
+/* Realtime clock */
+#define CONFIG_MCFRTC
+#undef RTC_DEBUG
+#define CFG_RTC_OSCILLATOR (32 * CFG_HZ)
+
+/* Timer */
+#define CONFIG_MCFTMR
+#undef CONFIG_MCFPIT
+
+/* I2c */
+#define CONFIG_FSL_I2C
+#define CONFIG_HARD_I2C /* I2C with hardware support */
+#undef CONFIG_SOFT_I2C /* I2C bit-banged */
+#define CFG_I2C_SPEED 80000 /* I2C speed and slave address */
+#define CFG_I2C_SLAVE 0x7F
+#define CFG_I2C_OFFSET 0x58000
+#define CFG_IMMR CFG_MBAR
+
+/* Input, PCI, Flexbus, and VCO */
+#define CONFIG_EXTRA_CLOCK
+
+#define CFG_INPUT_CLKSRC 16000000
+
+#define CONFIG_PRAM 512 /* 512 KB */
+
+#define CFG_PROMPT "-> "
+#define CFG_LONGHELP /* undef to save memory */
+
+#if defined(CONFIG_CMD_KGDB)
+#define CFG_CBSIZE 1024 /* Console I/O Buffer Size */
+#else
+#define CFG_CBSIZE 256 /* Console I/O Buffer Size */
+#endif
+#define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */
+#define CFG_MAXARGS 16 /* max number of command args */
+#define CFG_BARGSIZE CFG_CBSIZE /* Boot Argument Buffer Size */
+
+#define CFG_LOAD_ADDR (CFG_SDRAM_BASE + 0x10000)
+
+#define CFG_HZ 1000
+
+#define CFG_MBAR 0xFC000000
+
+/*
+ * Low Level Configuration Settings
+ * (address mappings, register initial values, etc.)
+ * You should know what you are doing if you make changes here.
+ */
+
+/*-----------------------------------------------------------------------
+ * Definitions for initial stack pointer and data area (in DPRAM)
+ */
+#define CFG_INIT_RAM_ADDR 0x80000000
+#define CFG_INIT_RAM_END 0x8000 /* End of used area in internal SRAM */
+#define CFG_INIT_RAM_CTRL 0x21
+#define CFG_GBL_DATA_SIZE 128 /* size in bytes reserved for initial data */
+#define CFG_GBL_DATA_OFFSET ((CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE) - 16)
+#define CFG_INIT_SP_OFFSET CFG_GBL_DATA_OFFSET
+
+/*-----------------------------------------------------------------------
+ * Start addresses for the final memory configuration
+ * (Set up by the startup code)
+ * Please note that CFG_SDRAM_BASE _must_ start at 0
+ */
+#define CFG_SDRAM_BASE 0x40000000
+#define CFG_SDRAM_SIZE 64 /* SDRAM size in MB */
+#define CFG_SDRAM_CFG1 0x43711630
+#define CFG_SDRAM_CFG2 0x56670000
+#define CFG_SDRAM_CTRL 0xE1092000
+#define CFG_SDRAM_EMOD 0x81810000
+#define CFG_SDRAM_MODE 0x00CD0000
+
+#define CFG_MEMTEST_START CFG_SDRAM_BASE + 0x400
+#define CFG_MEMTEST_END ((CFG_SDRAM_SIZE - 3) << 20)
+
+#define CFG_MONITOR_BASE (CFG_FLASH_BASE + 0x400)
+#define CFG_BOOTPARAMS_LEN 64*1024
+#define CFG_MONITOR_LEN (256 << 10) /* Reserve 256 kB for Monitor */
+#define CFG_MALLOC_LEN (128 << 10) /* Reserve 128 kB for malloc() */
+
+/* Initial Memory map for Linux */
+#define CFG_BOOTMAPSZ (CFG_SDRAM_BASE + (CFG_SDRAM_SIZE << 20))
+
+/* Configuration for environment
+ * Environment is embedded in u-boot in the second sector of the flash
+ */
+#define CFG_ENV_IS_IN_FLASH 1
+#define CONFIG_ENV_OVERWRITE 1
+#undef CFG_ENV_IS_EMBEDDED
+
+/*-----------------------------------------------------------------------
+ * FLASH organization
+ */
+#define CFG_FLASH_BASE CFG_CS0_BASE
+#define CFG_FLASH0_BASE CFG_CS0_BASE
+#define CFG_ENV_ADDR (CFG_FLASH_BASE + 0x8000)
+#define CFG_ENV_SECT_SIZE 0x8000
+
+#define CFG_FLASH_CFI
+#ifdef CFG_FLASH_CFI
+
+# define CFG_FLASH_CFI_DRIVER 1
+# define CFG_FLASH_SIZE 0x1000000 /* Max size that the board might have */
+# define CFG_FLASH_CFI_WIDTH FLASH_CFI_16BIT
+# define CFG_MAX_FLASH_BANKS 1 /* max number of memory banks */
+# define CFG_MAX_FLASH_SECT 137 /* max number of sectors on one chip */
+# define CFG_FLASH_PROTECTION /* "Real" (hardware) sectors protection */
+# define CFG_FLASH_CHECKSUM
+#endif
+
+/*
+ * This is setting for JFFS2 support in u-boot.
+ * NOTE: Enable CONFIG_CMD_JFFS2 for JFFS2 support.
+ */
+#ifdef CONFIG_CMD_JFFS2
+# define CONFIG_JFFS2_DEV "nor0"
+# define CONFIG_JFFS2_PART_SIZE (0x01000000 - 0x40000)
+# define CONFIG_JFFS2_PART_OFFSET (CFG_FLASH0_BASE + 0x40000)
+#endif
+
+/*-----------------------------------------------------------------------
+ * Cache Configuration
+ */
+#define CFG_CACHELINE_SIZE 16
+
+/*-----------------------------------------------------------------------
+ * Memory bank definitions
+ */
+/*
+ * CS0 - NOR Flash
+ * CS1 - Available
+ * CS2 - Available
+ * CS3 - Available
+ * CS4 - Available
+ * CS5 - Available
+ */
+
+#define CFG_CS0_BASE 0x00000000
+#define CFG_CS0_MASK 0x00FF0001
+#define CFG_CS0_CTRL 0x00001FA0
+
+#endif /* _M52277EVB_H */
diff --git a/lib_m68k/board.c b/lib_m68k/board.c
index 43f97c4..9159206 100644
--- a/lib_m68k/board.c
+++ b/lib_m68k/board.c
@@ -313,6 +313,16 @@ board_init_f (ulong bootflag)
debug ("Reserving %ldk for protected RAM at %08lx\n", reg, addr);
#endif /* CONFIG_PRAM */
+ /* round down to next 4 kB limit */
+ addr &= ~(4096 - 1);
+ debug ("Top of RAM usable for U-Boot at: %08lx\n", addr);
+
+#ifdef CONFIG_LCD
+ /* reserve memory for LCD display (always full pages) */
+ addr = lcd_setmem (addr);
+ gd->fb_base = addr;
+#endif /* CONFIG_LCD */
+
/*
* reserve memory for U-Boot code, data & bss
* round down to next 4 kB limit
--
1.5.2
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