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To build RAMBOOT, replace this section the main Makefile
pcm030_config \
pcm030_RAMBOOT_config \
pcm030_LOWBOOT_config: unconfig
@ >include/config.h
@[ -z "$(findstring LOWBOOT_,$@)" ] || \
{ echo "CONFIG_SYS_TEXT_BASE = 0xFF000000" >board/phytec/pcm030/config.tmp ; \
echo "... with LOWBOOT configuration" ; \
}
@[ -z "$(findstring RAMBOOT_,$@)" ] || \
{ echo "CONFIG_SYS_TEXT_BASE = 0x00100000" >board/phycore_mpc5200b_tiny/\
config.tmp ; \
echo "... with RAMBOOT configuration" ; \
echo "... remember to make sure that MBAR is already \
switched to 0xF0000000 !!!" ; \
}
@$(MKCONFIG) -a pcm030 ppc mpc5xxx pcm030 phytec
@ echo "remember to set pcm030_REV to 0 for rev 1245.0 rev or to 1 for rev 1245.1"
Alternative SDRAM settings:
#define SDRAM_MODE 0x018D0000
#define SDRAM_EMODE 0x40090000
#define SDRAM_CONTROL 0x715f0f00
#define SDRAM_CONFIG1 0x73722930
#define SDRAM_CONFIG2 0x47770000
/* Settings for XLB = 99 MHz */
#define SDRAM_MODE 0x008D0000
#define SDRAM_EMODE 0x40090000
#define SDRAM_CONTROL 0x714b0f00
#define SDRAM_CONFIG1 0x63611730
#define SDRAM_CONFIG2 0x47670000
The board ships default with the environment in EEPROM
Moving the environment to flash can be more reliable
#define CONFIG_ENV_IS_IN_FLASH 1
#define CONFIG_ENV_ADDR (CONFIG_SYS_FLASH_BASE + 0xfe0000)
#define CONFIG_ENV_SIZE 0x20000
#define CONFIG_ENV_SECT_SIZE 0x20000
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