diff options
Diffstat (limited to 'arch/blackfin/include/asm/config.h')
| -rw-r--r-- | arch/blackfin/include/asm/config.h | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/arch/blackfin/include/asm/config.h b/arch/blackfin/include/asm/config.h new file mode 100644 index 0000000..7455685 --- /dev/null +++ b/arch/blackfin/include/asm/config.h @@ -0,0 +1,169 @@ +/* + * config.h - setup common defines for Blackfin boards based on config.h + * + * Copyright (c) 2007-2009 Analog Devices Inc. + * + * Licensed under the GPL-2 or later. + */ + +#ifndef __ASM_BLACKFIN_CONFIG_POST_H__ +#define __ASM_BLACKFIN_CONFIG_POST_H__ + +/* Sanity check CONFIG_BFIN_CPU */ +#ifndef CONFIG_BFIN_CPU +# error CONFIG_BFIN_CPU: your board config needs to define this +#endif + +#ifndef CONFIG_BFIN_SCRATCH_REG +# define CONFIG_BFIN_SCRATCH_REG retn +#endif + +/* Relocation to SDRAM works on all Blackfin boards */ +#define CONFIG_RELOC_FIXUP_WORKS + +/* Make sure the structure is properly aligned */ +#if ((CONFIG_SYS_GBL_DATA_ADDR & -4) != CONFIG_SYS_GBL_DATA_ADDR) +# error CONFIG_SYS_GBL_DATA_ADDR: must be 4 byte aligned +#endif + +/* Set default CONFIG_VCO_HZ if need be */ +#if !defined(CONFIG_VCO_HZ) +# if (CONFIG_CLKIN_HALF == 0) +# define CONFIG_VCO_HZ (CONFIG_CLKIN_HZ * CONFIG_VCO_MULT) +# else +# define CONFIG_VCO_HZ ((CONFIG_CLKIN_HZ * CONFIG_VCO_MULT) / 2) +# endif +#endif + +/* Set default CONFIG_CCLK_HZ if need be */ +#if !defined(CONFIG_CCLK_HZ) +# if (CONFIG_PLL_BYPASS == 0) +# define CONFIG_CCLK_HZ (CONFIG_VCO_HZ / CONFIG_CCLK_DIV) +# else +# define CONFIG_CCLK_HZ CONFIG_CLKIN_HZ +# endif +#endif + +/* Set default CONFIG_SCLK_HZ if need be */ +#if !defined(CONFIG_SCLK_HZ) +# if (CONFIG_PLL_BYPASS == 0) +# define CONFIG_SCLK_HZ (CONFIG_VCO_HZ / CONFIG_SCLK_DIV) +# else +# define CONFIG_SCLK_HZ CONFIG_CLKIN_HZ +# endif +#endif + +/* Since we use these to program PLL registers directly, + * make sure the values are sane and won't screw us up. + */ +#if (CONFIG_VCO_MULT & 0x3F) != CONFIG_VCO_MULT +# error CONFIG_VCO_MULT: Invalid value: must fit in 6 bits (0 - 63) +#endif +#if (CONFIG_CLKIN_HALF & 0x1) != CONFIG_CLKIN_HALF +# error CONFIG_CLKIN_HALF: Invalid value: must be 0 or 1 +#endif +#if (CONFIG_PLL_BYPASS & 0x1) != CONFIG_PLL_BYPASS +# error CONFIG_PLL_BYPASS: Invalid value: must be 0 or 1 +#endif + +/* If we are using KGDB, make sure we defer exceptions */ +#ifdef CONFIG_CMD_KGDB +# define CONFIG_EXCEPTION_DEFER 1 +#endif + +/* Using L1 scratch pad makes sense for everyone by default. */ +#ifndef CONFIG_LINUX_CMDLINE_ADDR +# define CONFIG_LINUX_CMDLINE_ADDR L1_SRAM_SCRATCH +#endif +#ifndef CONFIG_LINUX_CMDLINE_SIZE +# define CONFIG_LINUX_CMDLINE_SIZE L1_SRAM_SCRATCH_SIZE +#endif + +/* Set default SPI flash CS to the one we boot from */ +#if defined(CONFIG_ENV_IS_IN_SPI_FLASH) && !defined(CONFIG_ENV_SPI_CS) +# define CONFIG_ENV_SPI_CS BFIN_BOOT_SPI_SSEL +#endif + +/* We need envcrc to embed the env into LDRs */ +#ifdef CONFIG_ENV_IS_EMBEDDED_IN_LDR +# define CONFIG_BUILD_ENVCRC +#endif + +/* Default/common Blackfin memory layout */ +#ifndef CONFIG_SYS_SDRAM_BASE +# define CONFIG_SYS_SDRAM_BASE 0 +#endif +#ifndef CONFIG_SYS_MAX_RAM_SIZE +# define CONFIG_SYS_MAX_RAM_SIZE (CONFIG_MEM_SIZE * 1024 * 1024) +#endif +#ifndef CONFIG_SYS_MONITOR_BASE +# if CONFIG_SYS_MAX_RAM_SIZE +# define CONFIG_SYS_MONITOR_BASE (CONFIG_SYS_MAX_RAM_SIZE - CONFIG_SYS_MONITOR_LEN) +# else +# define CONFIG_SYS_MONITOR_BASE 0 +# endif +#endif +#ifndef CONFIG_SYS_MALLOC_BASE +# define CONFIG_SYS_MALLOC_BASE (CONFIG_SYS_MONITOR_BASE - CONFIG_SYS_MALLOC_LEN) +#endif +#ifndef CONFIG_SYS_GBL_DATA_SIZE +# define CONFIG_SYS_GBL_DATA_SIZE (128) +#endif +#ifndef CONFIG_SYS_GBL_DATA_ADDR +# define CONFIG_SYS_GBL_DATA_ADDR (CONFIG_SYS_MALLOC_BASE - CONFIG_SYS_GBL_DATA_SIZE) +#endif +#ifndef CONFIG_STACKBASE +# define CONFIG_STACKBASE (CONFIG_SYS_GBL_DATA_ADDR - 4) +#endif +#ifndef CONFIG_SYS_MEMTEST_START +# define CONFIG_SYS_MEMTEST_START 0 +#endif +#ifndef CONFIG_SYS_MEMTEST_END +# define CONFIG_SYS_MEMTEST_END (CONFIG_STACKBASE - 8192 + 4) +#endif + +/* Check to make sure everything fits in external RAM */ +#if CONFIG_SYS_MAX_RAM_SIZE && \ + ((CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN) > CONFIG_SYS_MAX_RAM_SIZE) +# error Memory Map does not fit into configuration +#endif + +/* Default/common Blackfin environment settings */ +#ifndef CONFIG_LOADADDR +# define CONFIG_LOADADDR 0x1000000 +#endif +#ifndef CONFIG_SYS_LOAD_ADDR +# define CONFIG_SYS_LOAD_ADDR CONFIG_LOADADDR +#endif +#ifndef CONFIG_SYS_BOOTM_LEN +# define CONFIG_SYS_BOOTM_LEN 0x4000000 +#endif +#ifndef CONFIG_SYS_PROMPT +# define CONFIG_SYS_PROMPT "bfin> " +#endif +#ifndef CONFIG_SYS_CBSIZE +# define CONFIG_SYS_CBSIZE 1024 +#elif defined(CONFIG_CMD_KGDB) && CONFIG_SYS_CBSIZE < 1024 +# error "kgdb needs cbsize to be >= 1024" +#endif +#ifndef CONFIG_SYS_BARGSIZE +# define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE +#endif +#ifndef CONFIG_SYS_PBSIZE +# define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16) +#endif +#ifndef CONFIG_SYS_MAXARGS +# define CONFIG_SYS_MAXARGS 16 +#endif +#if defined(CONFIG_SYS_HZ) +# if (CONFIG_SYS_HZ != 1000) +# warning "CONFIG_SYS_HZ must always be 1000" +# endif +# undef CONFIG_SYS_HZ +#endif +#define CONFIG_SYS_HZ 1000 +#ifndef CONFIG_SYS_BAUDRATE_TABLE +# define CONFIG_SYS_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 } +#endif + +#endif |