1Freescale MCF52277EVB ColdFire Development Board
2================================================
3
4TsiChung Liew(Tsi-Chung.Liew@freescale.com)
5Created Jan 8, 2008
6===========================================
7
8
9Changed files:
10==============
11
12- board/freescale/m52277evb/m52277evb.c	Dram setup
13- board/freescale/m52277evb/Makefile	Makefile
14- board/freescale/m52277evb/config.mk	config make
15- board/freescale/m52277evb/u-boot.lds	Linker description
16
17- arch/m68k/cpu/mcf5227x/cpu.c		cpu specific code
18- arch/m68k/cpu/mcf5227x/cpu_init.c	FBCS, Mux pins, icache and RTC extra regs
19- arch/m68k/cpu/mcf5227x/interrupts.c	cpu specific interrupt support
20- arch/m68k/cpu/mcf5227x/speed.c		system, flexbus, and cpu clock
21- arch/m68k/cpu/mcf5227x/Makefile		Makefile
22- arch/m68k/cpu/mcf5227x/config.mk	config make
23- arch/m68k/cpu/mcf5227x/start.S		start up assembly code
24
25- doc/README.m52277evb		This readme file
26
27- drivers/serial/mcfuart.c	ColdFire common UART driver
28- drivers/rtc/mcfrtc.c		Realtime clock Driver
29
30- include/asm-m68k/bitops.h		Bit operation function export
31- include/asm-m68k/byteorder.h		Byte order functions
32- include/asm-m68k/crossbar.h		CrossBar structure and definition
33- include/asm-m68k/dspi.h		DSPI structure and definition
34- include/asm-m68k/edma.h		eDMA structure and definition
35- include/asm-m68k/flexbus.h		FlexBus structure and definition
36- include/asm-m68k/fsl_i2c.h		I2C structure and definition
37- include/asm-m68k/global_data.h	Global data structure
38- include/asm-m68k/immap.h		ColdFire specific header file and driver macros
39- include/asm-m68k/immap_5227x.h	mcf5227x specific header file
40- include/asm-m68k/io.h			io functions
41- include/asm-m68k/lcd.h		LCD structure and definition
42- include/asm-m68k/m5227x.h		mcf5227x specific header file
43- include/asm-m68k/posix_types.h	Posix
44- include/asm-m68k/processor.h		header file
45- include/asm-m68k/ptrace.h		Exception structure
46- include/asm-m68k/rtc.h		Realtime clock header file
47- include/asm-m68k/ssi.h		SSI structure and definition
48- include/asm-m68k/string.h		String function export
49- include/asm-m68k/timer.h		Timer structure and definition
50- include/asm-m68k/types.h		Data types definition
51- include/asm-m68k/uart.h		Uart structure and definition
52- include/asm-m68k/u-boot.h		U-Boot structure
53
54- include/configs/M52277EVB.h		Board specific configuration file
55
56- arch/m68k/lib/board.c			board init function
57- arch/m68k/lib/cache.c
58- arch/m68k/lib/interrupts			Coldfire common interrupt functions
59- arch/m68k/lib/m68k_linux.c
60- arch/m68k/lib/time.c			Timer functions (Dma timer and PIT)
61- arch/m68k/lib/traps.c			Exception init code
62
631 MCF52277 specific Options/Settings
64====================================
651.1 pre-loader is no longer suppoer in this coldfire family
66
671.2 Configuration settings for M52277EVB Development Board
68CONFIG_MCF5227x		-- define for all MCF5227x CPUs
69CONFIG_M52277		-- define for all Freescale MCF52277 CPUs
70CONFIG_M52277EVB	-- define for M52277EVB board
71
72CONFIG_MCFUART		-- define to use common CF Uart driver
73CONFIG_SYS_UART_PORT		-- define UART port number, start with 0, 1 and 2
74CONFIG_BAUDRATE		-- define UART baudrate
75
76CONFIG_MCFRTC		-- define to use common CF RTC driver
77CONFIG_SYS_MCFRTC_BASE		-- provide base address for RTC in immap.h
78CONFIG_SYS_RTC_OSCILLATOR	-- define RTC clock frequency
79RTC_DEBUG		-- define to show RTC debug message
80CONFIG_CMD_DATE		-- enable to use date feature in U-Boot
81
82CONFIG_MCFTMR		-- define to use DMA timer
83CONFIG_MCFPIT		-- define to use PIT timer
84
85CONFIG_SYS_I2C_FSL	-- define to use FSL common I2C driver
86CONFIG_HARD_I2C		-- define for I2C hardware support
87CONFIG_SYS_I2C_SOFT	-- define for I2C bit-banged
88CONFIG_SYS_I2C_SPEED		-- define for I2C speed
89CONFIG_SYS_I2C_SLAVE		-- define for I2C slave address
90CONFIG_SYS_I2C_OFFSET		-- define for I2C base address offset
91CONFIG_SYS_IMMR		-- define for MBAR offset
92
93CONFIG_SYS_MBAR		-- define MBAR offset
94
95CONFIG_MONITOR_IS_IN_RAM -- Not support
96
97CONFIG_SYS_INIT_RAM_ADDR	-- defines the base address of the MCF52277 internal SRAM
98
99CONFIG_SYS_CSn_BASE	-- defines the Chip Select Base register
100CONFIG_SYS_CSn_MASK	-- defines the Chip Select Mask register
101CONFIG_SYS_CSn_CTRL	-- defines the Chip Select Control register
102
103CONFIG_SYS_SDRAM_BASE	-- defines the DRAM Base
104
105CONFIG_LCD and CONFIG_CMD_USB are not supported in this current U-Boot,
106update will be provided at later time
107
1082. MEMORY MAP UNDER U-BOOT AND LINUX KERNEL
109===========================================
1102.1. System memory map:
111	Flash:		0x00000000-0x3FFFFFFF (1024MB)
112	DDR:		0x40000000-0x7FFFFFFF (1024MB)
113	SRAM:		0x80000000-0x8FFFFFFF (256MB)
114	IP:		0xF0000000-0xFFFFFFFF (256MB)
115
1162.2. For the initial bringup, we adopted a consistent memory scheme between U-Boot and
117	linux kernel, you can customize it based on your system requirements:
118	Flash0:		0x00000000-0x00FFFFFF (16MB)
119
120	DDR:		0x40000000-0x4FFFFFFF (64MB)
121	SRAM:		0x80000000-0x80007FFF (32KB)
122	IP:		0xFC000000-0xFC0FFFFF (64KB)
123
1243. COMPILATION
125==============
1263.1	To create U-Boot the gcc-4.1-xx compiler set (ColdFire ELF or
127uClinux version) from codesourcery.com was used. Download it from:
128http://www.codesourcery.com/gnu_toolchains/coldfire/download.html
129
1303.2 Compilation
131   export CROSS_COMPILE=cross-compile-prefix
132   cd u-boot-1.x.x
133   make distclean
134   make M52277EVB_config
135   make
136
1374. SCREEN DUMP
138==============
1394.1 M52277EVB Development board
140    (NOTE: May not show exactly the same)
141
142U-Boot 1.3.1 (Jan 8 2008 - 12:44:08)
143
144CPU:   Freescale MCF52277 (Mask:6c Version:0)
145       CPU CLK 160 Mhz BUS CLK 80 Mhz FLB CLK 80 MHZ
146       INP CLK 16 Mhz VCO CLK 480 Mhz
147Board: Freescale 52277 EVB
148I2C:   ready
149DRAM:  64 MB
150FLASH: 16 MB
151In:    serial
152Out:   serial
153Err:   serial
154-> print
155baudrate=115200
156hostname=M52277EVB
157inpclk=16000000
158loadaddr=(0x40000000 + 0x10000)
159load=tftp ${loadaddr) ${u-boot}
160upd=run load; run prog
161prog=prot off 0 3ffff;era 0 3ffff;cp.b ${loadaddr} 0 ${filesize};save
162u-boot=u-boot.bin
163stdin=serial
164stdout=serial
165stderr=serial
166mem=65024k
167
168Environment size: 280/32764 bytes
169-> bdinfo
170memstart    = 0x40000000
171memsize     = 0x04000000
172flashstart  = 0x00000000
173flashsize   = 0x01000000
174flashoffset = 0x00000000
175sramstart   = 0x80000000
176sramsize    = 0x00008000
177mbar        = 0xFC000000
178busfreq     =     80 MHz
179flbfreq     =     80 Mhz
180inpfreq     =     16 Mhz
181vcofreq     =    480 Mhz
182
183baudrate    = 115200 bps
184->
185-> help
186?       - alias for 'help'
187base    - print or set address offset
188bdinfo  - print Board Info structure
189boot    - boot default, i.e., run 'bootcmd'
190bootd   - boot default, i.e., run 'bootcmd'
191bootelf - Boot from an ELF image in memory
192bootm   - boot application image from memory
193bootp	- boot image via network using BootP/TFTP protocol
194bootvx  - Boot vxWorks from an ELF image
195cmp     - memory compare
196coninfo - print console devices and information
197cp      - memory copy
198crc32   - checksum calculation
199date    - get/set/reset date & time
200dcache  - enable or disable data cache
201echo    - echo args to console
202erase   - erase FLASH memory
203flinfo  - print FLASH memory information
204go      - start application at address 'addr'
205help    - print online help
206i2c     - I2C sub-system
207icache  - enable or disable instruction cache
208iminfo  - print header information for application image
209imls    - list all images found in flash
210itest	- return true/false on integer compare
211loadb   - load binary file over serial line (kermit mode)
212loads   - load S-Record file over serial line
213loady   - load binary file over serial line (ymodem mode)
214loop    - infinite loop on address range
215ls	- list files in a directory (default /)
216md      - memory display
217mm      - memory modify (auto-incrementing)
218mtest   - simple RAM test
219mw      - memory write (fill)
220nm      - memory modify (constant address)
221ping	- send ICMP ECHO_REQUEST to network host
222printenv- print environment variables
223protect - enable or disable FLASH write protection
224reset   - Perform RESET of the CPU
225run     - run commands in an environment variable
226saveenv - save environment variables to persistent storage
227setenv  - set environment variables
228sleep   - delay execution for some time
229source  - run script from memory
230version - print monitor version
231->
232