2 * U-Boot - Configuration file for bf525-ucr2 board
3 * The board includes ADSP-BF525 rev. 0.2,
4 * 32-bit SDRAM (SAMSUNG K4S561632H-UC75),
5 * USB 2.0 High Speed OTG USB WIFI,
6 * SPI flash (cFeon EN25Q128 16 MB),
7 * Support PPI and ITU-R656,
8 * See http://www.ucrobotics.com/?q=cn/ucr2
11 #ifndef __CONFIG_BF525_UCR2_H__
12 #define __CONFIG_BF525_UCR2_H__
14 #include <asm/config-pre.h>
19 #define CONFIG_BFIN_CPU bf525-0.2
20 #define CONFIG_BFIN_BOOT_MODE BFIN_BOOT_SPI_MASTER
24 * CCLK = (CLKIN * VCO_MULT) / CCLK_DIV
25 * SCLK = (CLKIN * VCO_MULT) / SCLK_DIV
27 /* CONFIG_CLKIN_HZ is any value in Hz */
28 #define CONFIG_CLKIN_HZ 24000000
29 /* CLKIN_HALF controls the DF bit in PLL_CTL 0 = CLKIN */
31 #define CONFIG_CLKIN_HALF 0
32 /* PLL_BYPASS controls the BYPASS bit in PLL_CTL 0 = do not bypass */
34 #define CONFIG_PLL_BYPASS 0
35 /* VCO_MULT controls the MSEL (multiplier) bits in PLL_CTL */
36 /* Values can range from 0-63 (where 0 means 64) */
37 #define CONFIG_VCO_MULT 20
38 /* CCLK_DIV controls the core clock divider */
39 /* Values can be 1, 2, 4, or 8 ONLY */
40 #define CONFIG_CCLK_DIV 1
41 /* SCLK_DIV controls the system clock divider */
42 /* Values can range from 1-15 */
43 #define CONFIG_SCLK_DIV 4
48 #define CONFIG_MEM_ADD_WDTH 9
49 #define CONFIG_MEM_SIZE 32
52 * SDRAM reference page
53 * http://docs.blackfin.uclinux.org/doku.php?id=bfin:sdram
55 #define CONFIG_EBIU_SDRRC_VAL 0x3f8
56 #define CONFIG_EBIU_SDGCTL_VAL 0x9111cd
58 #define CONFIG_EBIU_AMGCTL_VAL (AMBEN_ALL)
59 #define CONFIG_EBIU_AMBCTL0_VAL (B1WAT_7 | B1RAT_11 | B1HT_2 | B1ST_3 | B0WAT_7 | B0RAT_11 | B0HT_2 | B0ST_3)
60 #define CONFIG_EBIU_AMBCTL1_VAL (B3WAT_7 | B3RAT_11 | B3HT_2 | B3ST_3 | B2WAT_7 | B2RAT_11 | B2HT_2 | B2ST_3)
62 #define CONFIG_SYS_MONITOR_LEN (320 * 1024)
63 #define CONFIG_SYS_MALLOC_LEN (320 * 1024)
65 /* We don't have a parallel flash chip */
66 #define CONFIG_SYS_NO_FLASH
68 /* support for serial flash */
69 #define CONFIG_BFIN_SPI
70 #define CONFIG_SF_DEFAULT_HZ 30000000
72 #define CONFIG_ENV_IS_IN_SPI_FLASH
73 #define CONFIG_ENV_SPI_MAX_HZ 30000000
74 #define CONFIG_ENV_OFFSET 0x10000
75 #define CONFIG_ENV_SIZE 0x10000
76 #define CONFIG_ENV_SECT_SIZE 0x10000
77 #define CONFIG_ENV_OVERWRITE 1
82 #define CONFIG_UART_CONSOLE 0
84 #define CONFIG_BAUDRATE 115200
85 #define CONFIG_BFIN_SERIAL
86 #define CONFIG_BOOTARGS "root=/dev/mtdblock0 rw"
87 #define CONFIG_BOOTCOMMAND "run sfboot"
88 #define CONFIG_EXTRA_ENV_SETTINGS \
89 "sfboot=sf probe 1;" \
90 "sf read 0x1000000 0x20000 0x300000;" \