cros: add LPC support for cros_ec

[karo-tx-uboot.git] / README

diff --git a/README b/README
index ac1ec44d155b06620303a6ccf7672fd2f15e5201..137e8cb949a33ccf25873064a62eed64774bb0be 100644 (file)
--- a/README
+++ b/README
@@ -413,11 +413,22 @@ The following options need to be configured:
                See Freescale App Note 4493 for more information about
                this erratum.
 
+               CONFIG_A003399_NOR_WORKAROUND
+               Enables a workaround for IFC erratum A003399. It is only
+               requred during NOR boot.
+
                CONFIG_SYS_FSL_CORENET_SNOOPVEC_COREONLY
 
                This is the value to write into CCSR offset 0x18600
                according to the A004510 workaround.
 
+               CONFIG_SYS_FSL_DSP_M2_RAM_ADDR
+               This value denotes start offset of M2 memory
+               which is directly connected to the DSP core.
+
+               CONFIG_SYS_FSL_DSP_CCSRBAR_DEFAULT
+               This value denotes start offset of DSP CCSR space.
+
 - Generic CPU options:
                CONFIG_SYS_BIG_ENDIAN, CONFIG_SYS_LITTLE_ENDIAN
 
@@ -2509,6 +2520,11 @@ CBFS (Coreboot Filesystem) support
                Define this option to include a destructive SPI flash
                test ('sf test').
 
+               CONFIG_SPI_FLASH_BAR            Ban/Extended Addr Reg
+
+               Define this option to use the Bank addr/Extended addr
+               support on SPI flashes which has size > 16Mbytes.
+
 - SystemACE Support:
                CONFIG_SYSTEMACE
 
@@ -3022,6 +3038,14 @@ FIT uImage format:
                CONFIG_SPL_LIBGENERIC_SUPPORT
                Support for lib/libgeneric.o in SPL binary
 
+               CONFIG_SPL_ENV_SUPPORT
+               Support for the environment operating in SPL binary
+
+               CONFIG_SPL_NET_SUPPORT
+               Support for the net/libnet.o in SPL binary.
+               It conflicts with SPL env from storage medium specified by
+               CONFIG_ENV_IS_xxx but CONFIG_ENV_IS_NOWHERE
+
                CONFIG_SPL_PAD_TO
                Image offset to which the SPL should be padded before appending
                the SPL payload. By default, this is defined as
@@ -3648,6 +3672,57 @@ but it can not erase, write this NOR flash by SRIO or PCIE interface.
          You will probably want to define these to avoid a really noisy system
          when storing the env in UBI.
 
+- CONFIG_ENV_IS_IN_MMC:
+
+       Define this if you have an MMC device which you want to use for the
+       environment.
+
+       - CONFIG_SYS_MMC_ENV_DEV:
+
+         Specifies which MMC device the environment is stored in.
+
+       - CONFIG_SYS_MMC_ENV_PART (optional):
+
+         Specifies which MMC partition the environment is stored in. If not
+         set, defaults to partition 0, the user area. Common values might be
+         1 (first MMC boot partition), 2 (second MMC boot partition).
+
+       - CONFIG_ENV_OFFSET:
+       - CONFIG_ENV_SIZE:
+
+         These two #defines specify the offset and size of the environment
+         area within the specified MMC device.
+
+         If offset is positive (the usual case), it is treated as relative to
+         the start of the MMC partition. If offset is negative, it is treated
+         as relative to the end of the MMC partition. This can be useful if
+         your board may be fitted with different MMC devices, which have
+         different sizes for the MMC partitions, and you always want the
+         environment placed at the very end of the partition, to leave the
+         maximum possible space before it, to store other data.
+
+         These two values are in units of bytes, but must be aligned to an
+         MMC sector boundary.
+
+       - CONFIG_ENV_OFFSET_REDUND (optional):
+
+         Specifies a second storage area, of CONFIG_ENV_SIZE size, used to
+         hold a redundant copy of the environment data. This provides a
+         valid backup copy in case the other copy is corrupted, e.g. due
+         to a power failure during a "saveenv" operation.
+
+         This value may also be positive or negative; this is handled in the
+         same way as CONFIG_ENV_OFFSET.
+
+         This value is also in units of bytes, but must also be aligned to
+         an MMC sector boundary.
+
+       - CONFIG_ENV_SIZE_REDUND (optional):
+
+         This value need not be set, even when CONFIG_ENV_OFFSET_REDUND is
+         set. If this value is set, it must be set to the same value as
+         CONFIG_ENV_SIZE.
+
 - CONFIG_SYS_SPI_INIT_OFFSET
 
        Defines offset to the initial SPI buffer area in DPRAM. The
@@ -3913,6 +3988,9 @@ Low Level (hardware related) configuration options:
 - CONFIG_SRIO2:
                Board has SRIO 2 port available
 
+- CONFIG_SRIO_PCIE_BOOT_MASTER
+               Board can support master function for Boot from SRIO and PCIE
+
 - CONFIG_SYS_SRIOn_MEM_VIRT:
                Virtual Address of SRIO port 'n' memory region
 
@@ -4023,6 +4101,11 @@ Low Level (hardware related) configuration options:
                that is executed before the actual U-Boot. E.g. when
                compiling a NAND SPL.
 
+- CONFIG_SYS_MPC85XX_NO_RESETVEC
+               Only for 85xx systems. If this variable is specified, the section
+               .resetvec is not kept and the section .bootpg is placed in the
+               previous 4k of the .text section.
+
 - CONFIG_ARCH_MAP_SYSMEM
                Generally U-Boot (and in particular the md command) uses
                effective address. It is therefore not necessary to regard