diff options
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/README.at91 | 22 | ||||
| -rw-r--r-- | doc/README.nand | 9 | ||||
| -rw-r--r-- | doc/README.phytec.pcm030 | 46 |
3 files changed, 67 insertions, 10 deletions
diff --git a/doc/README.at91 b/doc/README.at91 index 4a2c56b..84b5595 100644 --- a/doc/README.at91 +++ b/doc/README.at91 @@ -27,7 +27,7 @@ Environment variables ------------------------------------------------------------------------------ -AT91SAM9261EK +AT91SAM9261EK, AT91SAM9G10EK ------------------------------------------------------------------------------ Memory map @@ -75,6 +75,26 @@ Environment variables ------------------------------------------------------------------------------ +AT91SAM9M10G45EK +------------------------------------------------------------------------------ + +Memory map + 0x20000000 - 23FFFFFF SDRAM (64 MB) + 0xC0000000 - Cxxxxxxx Atmel Dataflash card (J12) + +Environment variables + + U-Boot environment variables can be stored at different places: + - Dataflash on SPI chip select 0 (dataflash card) + - Nand flash. + + You can choose your storage location at config step (here for at91sam9m10g45ek) : + make at91sam9m10g45ek_config - use data flash (spi cs0) (default) + make at91sam9m10g45ek_nandflash_config - use nand flash + make at91sam9m10g45ek_dataflash_cs0_config - use data flash (spi cs0) + + +------------------------------------------------------------------------------ AT91SAM9RLEK ------------------------------------------------------------------------------ diff --git a/doc/README.nand b/doc/README.nand index bb72289..b077d9a 100644 --- a/doc/README.nand +++ b/doc/README.nand @@ -101,15 +101,6 @@ Configuration Options: CONFIG_SYS_NAND_MAX_CHIPS The maximum number of NAND chips per device to be supported. - CONFIG_SYS_DAVINCI_BROKEN_ECC - Versions of U-Boot <= 1.3.3 and Montavista Linux kernels - generated bogus ECCs on large-page NAND. Both large and small page - NAND ECCs were incompatible with the Linux davinci git tree (since - NAND was integrated in 2.6.24). - Turn this ON if you want backwards compatibility. - Turn this OFF if you want U-Boot and the Linux davinci git kernel - to use the same ECC format. - NOTE: ===== diff --git a/doc/README.phytec.pcm030 b/doc/README.phytec.pcm030 new file mode 100644 index 0000000..35a411a --- /dev/null +++ b/doc/README.phytec.pcm030 @@ -0,0 +1,46 @@ +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 "TEXT_BASE = 0xFF000000" >board/phytec/pcm030/config.tmp ; \ + echo "... with LOWBOOT configuration" ; \ + } + @[ -z "$(findstring RAMBOOT_,$@)" ] || \ + { echo "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 + + + |