1 /* U-boot for BlackVME. (C) Wojtek Skulski 2010.
2 * The board includes ADSP-BF561 rev. 0.5,
3 * 32-bit SDRAM (2 * MT48LC16M16A2TG or MT48LC32M16A2TG),
4 * Gigabit Ether AX88180 (ASIX) + 88E1111 rev. B2 (Marvell),
5 * SPI boot flash on PF2 (M25P64 8MB, or M25P128 16 MB),
6 * FPGA boot flash on PF3 (M25P64 8MB, or M25P128 16 MB),
7 * Spartan6-LX150 (memory-mapped; both PPIs also connected).
8 * See http://www.skutek.com
11 #ifndef __CONFIG_BLACKVME_H__
12 #define __CONFIG_BLACKVME_H__
14 #include <asm/config-pre.h>
16 /* Debugging: Set these options if you're having problems
17 * #define CONFIG_DEBUG_EARLY_SERIAL
19 * #define CONFIG_DEBUG_DUMP
20 * #define CONFIG_DEBUG_DUMP_SYMS
21 * CONFIG_PANIC_HANG means that the board will not auto-reboot
23 #define CONFIG_PANIC_HANG 0
26 #define CONFIG_BFIN_CPU bf561-0.5
27 #define CONFIG_BFIN_BOOT_MODE BFIN_BOOT_SPI_MASTER
30 * CLOCK SETTINGS CAVEAT
31 * You CANNOT just change the clock settings, esp. the SCLK.
32 * The SDRAM timing, SPI baud, and the serial UART baud
33 * use SCLK frequency to set their own frequencies. Therefore,
34 * if you change the SCLK_DIV, you may also have to adjust
35 * SDRAM refresh and other timings.
36 * --------------------------------------------------------------
37 * CCLK = (CLKIN * VCO_MULT) / CCLK_DIV
38 * 25 * 8 / 1 = 200 MHz
39 * 25 * 16 / 1 = 400 MHz
40 * 25 * 24 / 1 = 600 MHz
41 * SCLK = (CLKIN * VCO_MULT) / SCLK_DIV
42 * 25 * 8 / 2 = 100 MHz
43 * 25 * 24 / 6 = 100 MHz
44 * 25 * 24 / 5 = 120 MHz
45 * 25 * 16 / 3 = 133 MHz
46 * 25 MHz because the oscillator also feeds the ether chip.
47 * CONFIG_CLKIN_HZ is 25 MHz written in Hz
48 * CLKIN_HALF controls the DF bit in PLL_CTL
49 * 0 = CLKIN 1 = CLKIN / 2
50 * PLL_BYPASS controls the BYPASS bit in PLL_CTL
51 * 0 = do not bypass 1 = bypass PLL
52 * VCO_MULT = MSEL (multiplier) in PLL_CTL
53 * Values can range from 0-63 (where 0 means 64)
54 * CCLK_DIV = core clock divider (1, 2, 4, or 8 ONLY)
55 * SCLK_DIV = system clock divider, 1 to 15
57 #define CONFIG_CLKIN_HZ 25000000
58 #define CONFIG_CLKIN_HALF 0
59 #define CONFIG_PLL_BYPASS 0
60 #define CONFIG_VCO_MULT 8
61 #define CONFIG_CCLK_DIV 1
62 #define CONFIG_SCLK_DIV 2
65 * Ether chip in async memory space AMS3, same as BF561-EZ-KIT.
66 * Used in 32-bit mode. 16-bit mode not supported.
67 * http://docs.blackfin.uclinux.org/doku.php?id=hw:cards:ax88180
70 * Network settings using a dedicated 2nd ether card in PC
71 * Windows will automatically acquire IP of that card
72 * Then use the dedicated card IP + 1 for the board
73 * http://docs.blackfin.uclinux.org/doku.php?id=setting_up_the_network
75 #define CONFIG_DRIVER_AX88180 1
76 #define AX88180_BASE 0x2c000000
77 #define CONFIG_CMD_MII /* enable probing PHY */
79 #define CONFIG_HOSTNAME blackvme /* Bfin board */
80 #define CONFIG_IPADDR 169.254.144.145 /* Bfin board */
81 #define CONFIG_GATEWAYIP 169.254.144.144 /* dedic card */
82 #define CONFIG_SERVERIP 169.254.144.144 /* tftp server */
83 #define CONFIG_NETMASK 255.255.255.0
84 #define CONFIG_ROOTPATH "/export/uClinux-dist/romfs" /*NFS*/
85 #define CFG_AUTOLOAD "no"
86 #define CONFIG_CMD_DHCP
87 #define CONFIG_CMD_PING
90 * SDRAM settings & memory map
93 #define CONFIG_MEM_SIZE 64 /* 128, 64, 32, 16 */
94 #define CONFIG_MEM_ADD_WDTH 9 /* 8, 9, 10, 11 */
96 * SDRAM reference page
97 * http://docs.blackfin.uclinux.org/doku.php?id=bfin:sdram
98 * NOTE: BlackVME populates only SDRAM bank 0
100 /* CONFIG_EBIU_SDBCTL_VAL bank ctrl may be needed in future */
101 #define CONFIG_EBIU_SDGCTL_VAL 0x91114d /* global control */
102 #define CONFIG_EBIU_SDRRC_VAL 0x306 /* refresh rate */
104 /* Async memory global settings. (ASRAM, not SDRAM)
105 * HRM page 16-10. Global ASRAM control = 0x3F. Six lower bits = 1
106 * CLKOUT enabled, all async banks enabled, core has priority
107 * bank 0&1 16 bit (FPGA)
108 * bank 2&3 32 bit (ether and USB chips)
110 #define CONFIG_EBIU_AMGCTL_VAL 0x3F /* ASRAM setup */
112 /* Async mem timing: BF561 HRM page 16-12 and 16-15.
113 * Default values 0xFFC2 FFC2 are the slowest supported.
114 * Example settings of CONFIG_EBIU_AMBCTL1_VAL
115 * 1. EZ-KIT settings: 0xFFC2 7BB0
116 * 2. Bank 3 good timing for AX88180 @ 125MHz = 0x8850 xxxx
117 * See the following page:
118 * http://docs.blackfin.uclinux.org/doku.php?id=hw:cards:ax88180
119 * 3. Bank 3 timing for AX88180 @ SCLK = 100 MHz:
120 * AX88180 WEN = 5 clocks REN 6 clocks @ SCLK = 100 MHz
121 * One extra clock needed because AX88180 is asynchronous to CPU.
124 #define CONFIG_EBIU_AMBCTL0_VAL 0xFFC2FFC2
126 #define CONFIG_EBIU_AMBCTL1_VAL 0xFFC2FFC2
130 #define CONFIG_SYS_MONITOR_LEN (256 << 10)
131 #define CONFIG_SYS_MALLOC_LEN (384 << 10)
135 * For the M25P64 SCK should be kept < 15 MHz
137 #define CONFIG_BFIN_SPI
138 #define CONFIG_ENV_IS_IN_SPI_FLASH
139 #define CONFIG_ENV_OFFSET 0x40000
140 #define CONFIG_ENV_SIZE 0x2000
141 #define CONFIG_ENV_SECT_SIZE 0x40000
143 #define CONFIG_ENV_SPI_MAX_HZ 15000000
144 #define CONFIG_SF_DEFAULT_SPEED 15000000
145 #define CONFIG_SPI_FLASH_STMICRO
148 * Interactive command settings
151 #define CONFIG_SYS_LONGHELP 1
152 #define CONFIG_CMDLINE_EDITING 1
153 #define CONFIG_AUTO_COMPLETE 1
155 #include <config_cmd_default.h>
157 #define CONFIG_CMD_BOOTLDR
158 #define CONFIG_CMD_CACHE
159 #define CONFIG_CMD_CPLBINFO
160 #define CONFIG_CMD_SF
161 #define CONFIG_CMD_ELF
164 * Default: boot from SPI flash.
165 * "sfboot" is a composite command defined in extra settings
167 #define CONFIG_BOOTDELAY 5
168 #define CONFIG_BOOTCOMMAND "run sfboot"
173 #define CONFIG_BAUDRATE 57600
174 #define CONFIG_LOADS_ECHO 1
175 #define CONFIG_UART_CONSOLE 0
176 #define CONFIG_BFIN_SERIAL
179 * U-Boot environment variables. Use "printenv" to examine.
180 * http://docs.blackfin.uclinux.org/doku.php?id=bootloaders:u-boot:env
182 #define CONFIG_BOOTARGS \
183 "root=/dev/mtdblock0 rw " \
184 "clkin_hz=" __stringify(CONFIG_CLKIN_HZ) " " \
185 "earlyprintk=serial,uart0," \
186 __stringify(CONFIG_BAUDRATE) " " \
187 "console=ttyBF0," __stringify(CONFIG_BAUDRATE) " "
189 /* Convenience env variables & commands.
190 * Reserve kernstart = 0x20000 = 128 kB for U-Boot.
191 * Reserve kernarea = 0x500000 = 5 MB for kernel (reasonable size).
192 * U-Boot image is saved at flash offset=0.
193 * Kernel image is saved at flash offset=$kernstart.
194 * Instructions. Ksave takes about a minute to complete.
195 * 1. Update U-Boot: run uget; run usave
196 * 2. Update kernel: run kget; run ksave
197 * After updating U-Boot also update the kernel per above instructions
198 * to make the saved environment consistent with the flash.
200 #define CONFIG_EXTRA_ENV_SETTINGS \
201 "kernstart=0x20000\0" \
202 "kernarea=0x500000\0" \
203 "uget=tftp u-boot.ldr\0" \
204 "kget=tftp uImage\0" \
205 "usave=sf probe 2; " \
206 "sf erase 0 $(kernstart); " \
207 "sf write $(fileaddr) 0 $(filesize)\0" \
208 "ksave=sf probe 2; " \
210 "echo Now patiently wait for the prompt...; " \
211 "sf erase $(kernstart) $(kernarea); " \
212 "sf write $(fileaddr) $(kernstart) $(filesize)\0" \
213 "sfboot=sf probe 2; " \
214 "sf read $(loadaddr) $(kernstart) $(filesize); " \
215 "run addip; bootm\0" \
216 "addip=setenv bootargs $(bootargs) " \
217 "ip=$(ipaddr):$(serverip):$(gatewayip):" \
218 "$(netmask):$(hostname):eth0:off\0"
221 * Soft I2C settings (BF561 does not have hard I2C)
222 * PF12,13 on SPI connector 0.
224 #ifdef CONFIG_SYS_I2C_SOFT
225 # define CONFIG_CMD_I2C
226 # define CONFIG_SOFT_I2C_GPIO_SCL GPIO_PF12
227 # define CONFIG_SOFT_I2C_GPIO_SDA GPIO_PF13
228 # define CONFIG_SYS_I2C_SPEED 50000
229 # define CONFIG_SYS_I2C_SLAVE 0xFE
233 * No Parallel Flash on this board
235 #define CONFIG_SYS_NO_FLASH
236 #undef CONFIG_CMD_IMLS
237 #undef CONFIG_CMD_JFFS2
238 #undef CONFIG_CMD_FLASH