diff options
Diffstat (limited to 'README')
| -rw-r--r-- | README | 102 |
1 files changed, 2 insertions, 100 deletions
@@ -292,7 +292,7 @@ board_init_r(): - stack is optionally in SDRAM, if CONFIG_SPL_STACK_R is defined and CONFIG_SPL_STACK_R_ADDR points into SDRAM - preloader_console_init() can be called here - typically this is - done by defining CONFIG_SPL_BOARD_INIT and then supplying a + done by selecting CONFIG_SPL_BOARD_INIT and then supplying a spl_board_init() function containing this call - loads U-Boot or (in falcon mode) Linux @@ -830,18 +830,9 @@ The following options need to be configured: CONFIG_CMD_CRC32 * crc32 CONFIG_CMD_DHCP * DHCP support CONFIG_CMD_DIAG * Diagnostics - CONFIG_CMD_DS4510 * ds4510 I2C gpio commands - CONFIG_CMD_DS4510_INFO * ds4510 I2C info command - CONFIG_CMD_DS4510_MEM * ds4510 I2C eeprom/sram commansd - CONFIG_CMD_DS4510_RST * ds4510 I2C rst command - CONFIG_CMD_DTT * Digital Therm and Thermostat CONFIG_CMD_ECHO echo arguments CONFIG_CMD_EDITENV edit env variable - CONFIG_CMD_EEPROM * EEPROM read/write support - CONFIG_CMD_EEPROM_LAYOUT* EEPROM layout aware commands CONFIG_CMD_ELF * bootelf, bootvx - CONFIG_CMD_ENV_CALLBACK * display details about env callbacks - CONFIG_CMD_ENV_FLAGS * display details about env flags CONFIG_CMD_ENV_EXISTS * check existence of env variable CONFIG_CMD_EXPORTENV * export the environment CONFIG_CMD_EXT2 * ext2 command support @@ -850,28 +841,18 @@ The following options need to be configured: that work for multiple fs types CONFIG_CMD_FS_UUID * Look up a filesystem UUID CONFIG_CMD_SAVEENV saveenv - CONFIG_CMD_FDC * Floppy Disk Support CONFIG_CMD_FAT * FAT command support CONFIG_CMD_FLASH flinfo, erase, protect CONFIG_CMD_FPGA FPGA device initialization support - CONFIG_CMD_FUSE * Device fuse support - CONFIG_CMD_GETTIME * Get time since boot CONFIG_CMD_GO * the 'go' command (exec code) CONFIG_CMD_GREPENV * search environment - CONFIG_CMD_HASH * calculate hash / digest CONFIG_CMD_I2C * I2C serial bus support - CONFIG_CMD_IDE * IDE harddisk support CONFIG_CMD_IMI iminfo CONFIG_CMD_IMLS List all images found in NOR flash CONFIG_CMD_IMLS_NAND * List all images found in NAND flash - CONFIG_CMD_IMMAP * IMMR dump support - CONFIG_CMD_IOTRACE * I/O tracing for debugging CONFIG_CMD_IMPORTENV * import an environment CONFIG_CMD_INI * import data from an ini file into the env - CONFIG_CMD_IRQ * irqinfo CONFIG_CMD_ITEST Integer/string test of 2 values - CONFIG_CMD_JFFS2 * JFFS2 Support - CONFIG_CMD_KGDB * kgdb CONFIG_CMD_LDRINFO * ldrinfo (display Blackfin loader) CONFIG_CMD_LINK_LOCAL * link-local IP address auto-configuration (169.254.*.*) @@ -1095,7 +1076,7 @@ The following options need to be configured: disk/part_efi.c CONFIG_MTD_PARTITIONS Memory Technology Device partition table. - If IDE or SCSI support is enabled (CONFIG_CMD_IDE or + If IDE or SCSI support is enabled (CONFIG_IDE or CONFIG_SCSI) you must configure support for at least one non-MTD partition type as well. @@ -1742,29 +1723,6 @@ The following options need to be configured: the malloc area (as defined by CONFIG_SYS_MALLOC_LEN) should be at least 4MB. - CONFIG_LZMA - - If this option is set, support for lzma compressed - images is included. - - Note: The LZMA algorithm adds between 2 and 4KB of code and it - requires an amount of dynamic memory that is given by the - formula: - - (1846 + 768 << (lc + lp)) * sizeof(uint16) - - Where lc and lp stand for, respectively, Literal context bits - and Literal pos bits. - - This value is upper-bounded by 14MB in the worst case. Anyway, - for a ~4MB large kernel image, we have lc=3 and lp=0 for a - total amount of (1846 + 768 << (3 + 0)) * 2 = ~41KB... that is - a very small buffer. - - Use the lzmainfo tool to determinate the lc and lp values and - then calculate the amount of needed dynamic memory (ensuring - the appropriate CONFIG_SYS_MALLOC_LEN value). - CONFIG_LZO If this option is set, support for LZO compressed images @@ -2328,17 +2286,6 @@ The following options need to be configured: If defined, then this indicates the I2C bus number for the RTC. If not defined, then U-Boot assumes that RTC is on I2C bus 0. - CONFIG_SYS_DTT_BUS_NUM - - If defined, then this indicates the I2C bus number for the DTT. - If not defined, then U-Boot assumes that DTT is on I2C bus 0. - - CONFIG_SYS_I2C_DTT_ADDR: - - If defined, specifies the I2C address of the DTT device. - If not defined, then U-Boot uses predefined value for - specified DTT device. - CONFIG_SOFT_I2C_READ_REPEATED_START defining this will force the i2c_read() function in @@ -2405,19 +2352,6 @@ The following options need to be configured: Specify the number of FPGA devices to support. - CONFIG_CMD_FPGA_LOADMK - - Enable support for fpga loadmk command - - CONFIG_CMD_FPGA_LOADP - - Enable support for fpga loadp command - load partial bitstream - - CONFIG_CMD_FPGA_LOADBP - - Enable support for fpga loadbp command - load partial bitstream - (Xilinx only) - CONFIG_SYS_FPGA_PROG_FEEDBACK Enable printing of hash marks during FPGA configuration. @@ -2746,37 +2680,14 @@ The following options need to be configured: but sometimes that is not allowed. - Hashing support: - CONFIG_CMD_HASH - - This enables a generic 'hash' command which can produce - hashes / digests from a few algorithms (e.g. SHA1, SHA256). - CONFIG_HASH_VERIFY Enable the hash verify command (hash -v). This adds to code size a little. - CONFIG_SHA1 - This option enables support of hashing using SHA1 - algorithm. The hash is calculated in software. - CONFIG_SHA256 - This option enables support of hashing using - SHA256 algorithm. The hash is calculated in software. - CONFIG_SHA_HW_ACCEL - This option enables hardware acceleration - for SHA1/SHA256 hashing. - This affects the 'hash' command and also the - hash_lookup_algo() function. - CONFIG_SHA_PROG_HW_ACCEL - This option enables - hardware-acceleration for SHA1/SHA256 progressive hashing. - Data can be streamed in a block at a time and the hashing - is performed in hardware. - Note: There is also a sha1sum command, which should perhaps be deprecated in favour of 'hash sha1'. -- Freescale i.MX specific commands: - CONFIG_CMD_HDMIDETECT - This enables 'hdmidet' command which returns true if an - HDMI monitor is detected. This command is i.MX 6 specific. - - bootcount support: CONFIG_BOOTCOUNT_LIMIT @@ -2973,15 +2884,6 @@ FIT uImage format: This define is introduced, as the legacy image format is enabled per default for backward compatibility. -- FIT image support: - CONFIG_FIT_DISABLE_SHA256 - Supporting SHA256 hashes has quite an impact on binary size. - For constrained systems sha256 hash support can be disabled - with this option. - - TODO(sjg@chromium.org): Adjust this option to be positive, - and move it to Kconfig - - Standalone program support: CONFIG_STANDALONE_LOAD_ADDR |