mmc: sdhci: Enable 8-bit bus width only for 3.0 spec onwards

[karo-tx-uboot.git] / README

diff --git a/README b/README
index 7f9f547cff48494609ea91d7888fc2bbc1af2aa3..33bda8c929e1e4e35451b399cf9ca353d6a167a9 100644 (file)
--- a/README
+++ b/README
@@ -201,7 +201,6 @@ Directory Hierarchy:
       /mpc5xx          Files specific to Freescale MPC5xx CPUs
       /mpc5xxx         Files specific to Freescale MPC5xxx CPUs
       /mpc8xx          Files specific to Freescale MPC8xx CPUs
-      /mpc8220         Files specific to Freescale MPC8220 CPUs
       /mpc824x         Files specific to Freescale MPC824x CPUs
       /mpc8260         Files specific to Freescale MPC8260 CPUs
       /mpc85xx         Files specific to Freescale MPC85xx CPUs
@@ -899,6 +898,7 @@ The following options need to be configured:
                CONFIG_CMD_SF           * Read/write/erase SPI NOR flash
                CONFIG_CMD_SHA1SUM        print sha1 memory digest
                                          (requires CONFIG_CMD_MEMORY)
+               CONFIG_CMD_SOFTSWITCH   * Soft switch setting command for BF60x
                CONFIG_CMD_SOURCE         "source" command Support
                CONFIG_CMD_SPI          * SPI serial bus support
                CONFIG_CMD_TFTPSRV      * TFTP transfer in server mode
@@ -931,6 +931,13 @@ The following options need to be configured:
 
                XXX - this list needs to get updated!
 
+- Regular expression support:
+               CONFIG_REGEX
+                If this variable is defined, U-Boot is linked against
+                the SLRE (Super Light Regular Expression) library,
+                which adds regex support to some commands, as for
+                example "env grep" and "setexpr".
+
 - Device tree:
                CONFIG_OF_CONTROL
                If this variable is defined, U-Boot will use a device tree
@@ -1202,7 +1209,23 @@ The following options need to be configured:
                        If this option is set, the driver enables cache flush.
 
 - TPM Support:
-               CONFIG_GENERIC_LPC_TPM
+               CONFIG_TPM
+               Support TPM devices.
+
+               CONFIG_TPM_TIS_I2C
+               Support for i2c bus TPM devices. Only one device
+               per system is supported at this time.
+
+                       CONFIG_TPM_TIS_I2C_BUS_NUMBER
+                       Define the the i2c bus number for the TPM device
+
+                       CONFIG_TPM_TIS_I2C_SLAVE_ADDRESS
+                       Define the TPM's address on the i2c bus
+
+                       CONFIG_TPM_TIS_I2C_BURST_LIMITATION
+                       Define the burst count bytes upper limit
+
+               CONFIG_TPM_TIS_LPC
                Support for generic parallel port TPM devices. Only one device
                per system is supported at this time.
 
@@ -2909,12 +2932,30 @@ FIT uImage format:
                Address, size and partition on the MMC to load U-Boot from
                when the MMC is being used in raw mode.
 
+               CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR
+               Sector to load kernel uImage from when MMC is being
+               used in raw mode (for Falcon mode)
+
+               CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR,
+               CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS
+               Sector and number of sectors to load kernel argument
+               parameters from when MMC is being used in raw mode
+               (for falcon mode)
+
                CONFIG_SPL_FAT_SUPPORT
                Support for fs/fat/libfat.o in SPL binary
 
                CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME
                Filename to read to load U-Boot when reading from FAT
 
+               CONFIG_SPL_FAT_LOAD_KERNEL_NAME
+               Filename to read to load kernel uImage when reading
+               from FAT (for Falcon mode)
+
+               CONFIG_SPL_FAT_LOAD_ARGS_NAME
+               Filename to read to load kernel argument parameters
+               when reading from FAT (for Falcon mode)
+
                CONFIG_SPL_MPC83XX_WAIT_FOR_NAND
                Set this for NAND SPL on PPC mpc83xx targets, so that
                start.S waits for the rest of the SPL to load before
@@ -2990,6 +3031,12 @@ FIT uImage format:
                use an arch-specific makefile fragment instead, for
                example if more than one image needs to be produced.
 
+               CONFIG_FIT_SPL_PRINT
+               Printing information about a FIT image adds quite a bit of
+               code to SPL. So this is normally disabled in SPL. Use this
+               option to re-enable it. This will affect the output of the
+               bootm command when booting a FIT image.
+
 Modem Support:
 --------------
 
@@ -3249,6 +3296,15 @@ Configuration Settings:
                digits and dots.  Recommended value: 45 (9..1) for 80
                column displays, 15 (3..1) for 40 column displays.
 
+- CONFIG_FLASH_VERIFY
+               If defined, the content of the flash (destination) is compared
+               against the source after the write operation. An error message
+               will be printed when the contents are not identical.
+               Please note that this option is useless in nearly all cases,
+               since such flash programming errors usually are detected earlier
+               while unprotecting/erasing/programming. Please only enable
+               this option if you really know what you are doing.
+
 - CONFIG_SYS_RX_ETH_BUFFER:
                Defines the number of Ethernet receive buffers. On some
                Ethernet controllers it is recommended to set this value
@@ -3324,6 +3380,10 @@ Configuration Settings:
        offset _bss_start_ofs from CONFIG_SYS_TEXT_BASE, rather than
        directly. You should not need to touch this setting.
 
+- CONFIG_OMAP_PLATFORM_RESET_TIME_MAX_USEC (OMAP only)
+       This is set by OMAP boards for the max time that reset should
+       be asserted. See doc/README.omap-reset-time for details on how
+       the value can be calulated on a given board.
 
 The following definitions that deal with the placement and management
 of environment data (variable area); in general, we support the
@@ -3838,6 +3898,9 @@ Low Level (hardware related) configuration options:
                a second time.  Useful for platforms that are pre-booted
                by coreboot or similar.
 
+- CONFIG_PCI_INDIRECT_BRIDGE:
+               Enable support for indirect PCI bridges.
+
 - CONFIG_SYS_SRIO:
                Chip has SRIO or not
 
@@ -5042,7 +5105,7 @@ On some platforms, it's possible to boot Linux zImage. This is done
 using the "bootz" command. The syntax of "bootz" command is the same
 as the syntax of "bootm" command.
 
-Note, defining the CONFIG_SUPPORT_INITRD_RAW allows user to supply
+Note, defining the CONFIG_SUPPORT_RAW_INITRD allows user to supply
 kernel with raw initrd images. The syntax is slightly different, the
 address of the initrd must be augmented by it's size, in the following
 format: "<initrd addres>:<initrd size>".