2 * blackfin-config-post.h - setup common defines for Blackfin boards based on config.h
4 * Copyright (c) 2007 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 /* Check to make sure everything fits in external RAM */
13 #if ((CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN) > CONFIG_SYS_MAX_RAM_SIZE)
14 # error Memory Map does not fit into configuration
17 /* Sanity check CONFIG_BFIN_CPU */
18 #ifndef CONFIG_BFIN_CPU
19 # error CONFIG_BFIN_CPU: your board config needs to define this
22 /* Make sure the structure is properly aligned */
23 #if ((CONFIG_SYS_GBL_DATA_ADDR & -4) != CONFIG_SYS_GBL_DATA_ADDR)
24 # error CONFIG_SYS_GBL_DATA_ADDR: must be 4 byte aligned
27 /* Set default CONFIG_VCO_HZ if need be */
28 #if !defined(CONFIG_VCO_HZ)
29 # if (CONFIG_CLKIN_HALF == 0)
30 # define CONFIG_VCO_HZ (CONFIG_CLKIN_HZ * CONFIG_VCO_MULT)
32 # define CONFIG_VCO_HZ ((CONFIG_CLKIN_HZ * CONFIG_VCO_MULT) / 2)
36 /* Set default CONFIG_CCLK_HZ if need be */
37 #if !defined(CONFIG_CCLK_HZ)
38 # if (CONFIG_PLL_BYPASS == 0)
39 # define CONFIG_CCLK_HZ (CONFIG_VCO_HZ / CONFIG_CCLK_DIV)
41 # define CONFIG_CCLK_HZ CONFIG_CLKIN_HZ
45 /* Set default CONFIG_SCLK_HZ if need be */
46 #if !defined(CONFIG_SCLK_HZ)
47 # if (CONFIG_PLL_BYPASS == 0)
48 # define CONFIG_SCLK_HZ (CONFIG_VCO_HZ / CONFIG_SCLK_DIV)
50 # define CONFIG_SCLK_HZ CONFIG_CLKIN_HZ
54 /* Since we use these to program PLL registers directly,
55 * make sure the values are sane and won't screw us up.
57 #if (CONFIG_VCO_MULT & 0x3F) != CONFIG_VCO_MULT
58 # error CONFIG_VCO_MULT: Invalid value: must fit in 6 bits (0 - 63)
60 #if (CONFIG_CLKIN_HALF & 0x1) != CONFIG_CLKIN_HALF
61 # error CONFIG_CLKIN_HALF: Invalid value: must be 0 or 1
63 #if (CONFIG_PLL_BYPASS & 0x1) != CONFIG_PLL_BYPASS
64 # error CONFIG_PLL_BYPASS: Invalid value: must be 0 or 1
67 /* Using L1 scratch pad makes sense for everyone by default. */
68 #ifndef CONFIG_LINUX_CMDLINE_ADDR
69 # define CONFIG_LINUX_CMDLINE_ADDR L1_SRAM_SCRATCH
71 #ifndef CONFIG_LINUX_CMDLINE_SIZE
72 # define CONFIG_LINUX_CMDLINE_SIZE L1_SRAM_SCRATCH_SIZE