2 * config.h - setup common defines for Blackfin boards based on config.h
4 * Copyright (c) 2007-2009 Analog Devices Inc.
6 * Licensed under the GPL-2 or later.
9 #ifndef __ASM_BLACKFIN_CONFIG_POST_H__
10 #define __ASM_BLACKFIN_CONFIG_POST_H__
12 /* Some of our defines use this (like CONFIG_SYS_GBL_DATA_ADDR) */
13 #include <asm-offsets.h>
15 /* Sanity check CONFIG_BFIN_CPU */
16 #ifndef CONFIG_BFIN_CPU
17 # error CONFIG_BFIN_CPU: your board config needs to define this
20 #ifndef CONFIG_BFIN_SCRATCH_REG
21 # define CONFIG_BFIN_SCRATCH_REG retn
24 /* U-Boot wants this config name */
25 #define CONFIG_SYS_CACHELINE_SIZE L1_CACHE_BYTES
27 /* Make sure the structure is properly aligned */
28 #if ((CONFIG_SYS_GBL_DATA_ADDR & -4) != CONFIG_SYS_GBL_DATA_ADDR)
29 # error CONFIG_SYS_GBL_DATA_ADDR: must be 4 byte aligned
32 /* Set default CONFIG_VCO_HZ if need be */
33 #if !defined(CONFIG_VCO_HZ)
34 # if (CONFIG_CLKIN_HALF == 0)
35 # define CONFIG_VCO_HZ (CONFIG_CLKIN_HZ * CONFIG_VCO_MULT)
37 # define CONFIG_VCO_HZ ((CONFIG_CLKIN_HZ * CONFIG_VCO_MULT) / 2)
41 /* Set default CONFIG_CCLK_HZ if need be */
42 #if !defined(CONFIG_CCLK_HZ)
43 # if (CONFIG_PLL_BYPASS == 0)
44 # define CONFIG_CCLK_HZ (CONFIG_VCO_HZ / CONFIG_CCLK_DIV)
46 # define CONFIG_CCLK_HZ CONFIG_CLKIN_HZ
50 /* Set default CONFIG_SCLK_HZ if need be */
51 #if !defined(CONFIG_SCLK_HZ)
52 # if (CONFIG_PLL_BYPASS == 0)
53 # define CONFIG_SCLK_HZ (CONFIG_VCO_HZ / CONFIG_SCLK_DIV)
55 # define CONFIG_SCLK_HZ CONFIG_CLKIN_HZ
59 /* Since we use these to program PLL registers directly,
60 * make sure the values are sane and won't screw us up.
62 #if (CONFIG_VCO_MULT & 0x3F) != CONFIG_VCO_MULT
63 # error CONFIG_VCO_MULT: Invalid value: must fit in 6 bits (0 - 63)
65 #if (CONFIG_CLKIN_HALF & 0x1) != CONFIG_CLKIN_HALF
66 # error CONFIG_CLKIN_HALF: Invalid value: must be 0 or 1
68 #if (CONFIG_PLL_BYPASS & 0x1) != CONFIG_PLL_BYPASS
69 # error CONFIG_PLL_BYPASS: Invalid value: must be 0 or 1
72 /* If we are using KGDB, make sure we defer exceptions */
73 #ifdef CONFIG_CMD_KGDB
74 # define CONFIG_EXCEPTION_DEFER 1
77 /* Using L1 scratch pad makes sense for everyone by default. */
78 #ifndef CONFIG_LINUX_CMDLINE_ADDR
79 # define CONFIG_LINUX_CMDLINE_ADDR L1_SRAM_SCRATCH
81 #ifndef CONFIG_LINUX_CMDLINE_SIZE
82 # define CONFIG_LINUX_CMDLINE_SIZE L1_SRAM_SCRATCH_SIZE
85 /* Set default SPI flash CS to the one we boot from */
86 #if defined(CONFIG_ENV_IS_IN_SPI_FLASH) && !defined(CONFIG_ENV_SPI_CS)
87 # define CONFIG_ENV_SPI_CS BFIN_BOOT_SPI_SSEL
90 /* We need envcrc to embed the env into LDRs */
91 #ifdef CONFIG_ENV_IS_EMBEDDED_IN_LDR
92 # define CONFIG_BUILD_ENVCRC
95 /* Default/common Blackfin memory layout */
96 #ifndef CONFIG_SYS_SDRAM_BASE
97 # define CONFIG_SYS_SDRAM_BASE 0
99 #ifndef CONFIG_SYS_MAX_RAM_SIZE
100 # define CONFIG_SYS_MAX_RAM_SIZE (CONFIG_MEM_SIZE * 1024 * 1024)
102 #ifndef CONFIG_SYS_MONITOR_BASE
103 # if CONFIG_SYS_MAX_RAM_SIZE
104 # define CONFIG_SYS_MONITOR_BASE (CONFIG_SYS_MAX_RAM_SIZE - CONFIG_SYS_MONITOR_LEN)
106 # define CONFIG_SYS_MONITOR_BASE 0
109 #ifndef CONFIG_SYS_MALLOC_BASE
110 # define CONFIG_SYS_MALLOC_BASE (CONFIG_SYS_MONITOR_BASE - CONFIG_SYS_MALLOC_LEN)
112 #ifndef CONFIG_STACKBASE
113 # define CONFIG_STACKBASE (CONFIG_SYS_MALLOC_BASE - 4)
115 #ifndef CONFIG_SYS_MEMTEST_START
116 # define CONFIG_SYS_MEMTEST_START 0
118 #ifndef CONFIG_SYS_MEMTEST_END
119 # define CONFIG_SYS_MEMTEST_END (CONFIG_STACKBASE - 8192 + 4)
121 #ifndef CONFIG_SYS_POST_WORD_ADDR
122 # define CONFIG_SYS_POST_WORD_ADDR (L1_DATA_B_SRAM + L1_DATA_B_SRAM_SIZE - 4)
125 /* Check to make sure everything fits in external RAM */
126 #if CONFIG_SYS_MAX_RAM_SIZE && \
127 ((CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN) > CONFIG_SYS_MAX_RAM_SIZE)
128 # error Memory Map does not fit into configuration
131 /* Default/common Blackfin environment settings */
132 #ifndef CONFIG_LOADADDR
133 # define CONFIG_LOADADDR 0x1000000
135 #ifndef CONFIG_SYS_LOAD_ADDR
136 # define CONFIG_SYS_LOAD_ADDR CONFIG_LOADADDR
138 #ifndef CONFIG_SYS_BOOTM_LEN
139 # define CONFIG_SYS_BOOTM_LEN 0x4000000
141 #ifndef CONFIG_SYS_PROMPT
142 # define CONFIG_SYS_PROMPT "bfin> "
144 #ifndef CONFIG_SYS_CBSIZE
145 # define CONFIG_SYS_CBSIZE 1024
146 #elif defined(CONFIG_CMD_KGDB) && CONFIG_SYS_CBSIZE < 1024
147 # error "kgdb needs cbsize to be >= 1024"
149 #ifndef CONFIG_SYS_BARGSIZE
150 # define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE
152 #ifndef CONFIG_SYS_PBSIZE
153 # define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
155 #ifndef CONFIG_SYS_MAXARGS
156 # define CONFIG_SYS_MAXARGS 16
158 #if defined(CONFIG_SYS_HZ)
159 # if (CONFIG_SYS_HZ != 1000)
160 # warning "CONFIG_SYS_HZ must always be 1000"
162 # undef CONFIG_SYS_HZ
164 #define CONFIG_SYS_HZ 1000
165 #ifndef CONFIG_SYS_BAUDRATE_TABLE
166 # define CONFIG_SYS_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 }
169 /* Blackfin POST tests */
170 #ifdef CONFIG_POST_BSPEC1_GPIO_LEDS
171 # define CONFIG_POST_BSPEC1 \
173 "LED test", "led", "This test verifies LEDs on the board.", \
174 POST_MEM | POST_ALWAYS, &led_post_test, NULL, NULL, \
175 CONFIG_SYS_POST_BSPEC1, \
178 #ifdef CONFIG_POST_BSPEC2_GPIO_BUTTONS
179 # define CONFIG_POST_BSPEC2 \
181 "Button test", "button", "This test verifies buttons on the board.", \
182 POST_MEM | POST_ALWAYS, &button_post_test, NULL, NULL, \
183 CONFIG_SYS_POST_BSPEC2, \