andes_spi: add andes_spi interface

[karo-tx-uboot.git] / README

diff --git a/README b/README
index 8bb9c8d6be2a1b4bc50ea6882dcb1e1f12956b0f..294b39eda248a8bc3b74cec798ab9a5dcd6253c8 100644 (file)
--- a/README
+++ b/README
@@ -442,6 +442,16 @@ The following options need to be configured:
                crash. This is needed for buggy hardware (uc101) where
                no pull down resistor is connected to the signal IDE5V_DD7.
 
+               CONFIG_MACH_TYPE        [relevant for ARM only][mandatory]
+
+               This setting is mandatory for all boards that have only one
+               machine type and must be used to specify the machine type
+               number as it appears in the ARM machine registry
+               (see http://www.arm.linux.org.uk/developer/machines/).
+               Only boards that have multiple machine types supported
+               in a single configuration file and the machine type is
+               runtime discoverable, do not have to use this setting.
+
 - vxWorks boot parameters:
 
                bootvx constructs a valid bootline using the following
@@ -460,6 +470,17 @@ The following options need to be configured:
                Note: If a "bootargs" environment is defined, it will overwride
                the defaults discussed just above.
 
+- Cache Configuration:
+               CONFIG_SYS_ICACHE_OFF - Do not enable instruction cache in U-Boot
+               CONFIG_SYS_DCACHE_OFF - Do not enable data cache in U-Boot
+               CONFIG_SYS_L2CACHE_OFF- Do not enable L2 cache in U-Boot
+
+- Cache Configuration for ARM:
+               CONFIG_SYS_L2_PL310 - Enable support for ARM PL310 L2 cache
+                                     controller
+               CONFIG_SYS_PL310_BASE - Physical base address of PL310
+                                       controller register space
+
 - Serial Ports:
                CONFIG_PL010_SERIAL
 
@@ -716,7 +737,6 @@ The following options need to be configured:
                CONFIG_CMD_SPI          * SPI serial bus support
                CONFIG_CMD_TFTPSRV      * TFTP transfer in server mode
                CONFIG_CMD_USB          * USB support
-               CONFIG_CMD_VFD          * VFD support (TRAB)
                CONFIG_CMD_CDP          * Cisco Discover Protocol support
                CONFIG_CMD_FSL          * Microblaze FSL support
 
@@ -1044,6 +1064,15 @@ The following options need to be configured:
                enabled with CONFIG_CMD_MMC. The MMC driver also works with
                the FAT fs. This is enabled with CONFIG_CMD_FAT.
 
+               CONFIG_SH_MMCIF
+               Support for Renesas on-chip MMCIF controller
+
+                       CONFIG_SH_MMCIF_ADDR
+                       Define the base address of MMCIF registers
+
+                       CONFIG_SH_MMCIF_CLK
+                       Define the clock frequency for MMCIF
+
 - Journaling Flash filesystem support:
                CONFIG_JFFS2_NAND, CONFIG_JFFS2_NAND_OFF, CONFIG_JFFS2_NAND_SIZE,
                CONFIG_JFFS2_NAND_DEV
@@ -2230,7 +2259,7 @@ FIT uImage format:
 Modem Support:
 --------------
 
-[so far only for SMDK2400 and TRAB boards]
+[so far only for SMDK2400 boards]
 
 - Modem support enable:
                CONFIG_MODEM_SUPPORT
@@ -2918,6 +2947,14 @@ Low Level (hardware related) configuration options:
 - CONFIG_SYS_SRIOn_MEM_SIZE:
                Size of SRIO port 'n' memory region
 
+- CONFIG_SYS_NDFC_16
+               Defined to tell the NDFC that the NAND chip is using a
+               16 bit bus.
+
+- CONFIG_SYS_NDFC_EBC0_CFG
+               Sets the EBC0_CFG register for the NDFC. If not defined
+               a default value will be used.
+
 - CONFIG_SPD_EEPROM
                Get DDR timing information from an I2C EEPROM. Common
                with pluggable memory modules such as SODIMMs
@@ -2930,6 +2967,12 @@ Low Level (hardware related) configuration options:
                one, specify here. Note that the value must resolve
                to something your driver can deal with.
 
+- CONFIG_SYS_DDR_RAW_TIMING
+               Get DDR timing information from other than SPD. Common with
+               soldered DDR chips onboard without SPD. DDR raw timing
+               parameters are extracted from datasheet and hard-coded into
+               header files or board specific files.
+
 - CONFIG_SYS_83XX_DDR_USES_CS0
                Only for 83xx systems. If specified, then DDR should
                be configured using CS0 and CS1 instead of CS2 and CS3.
@@ -3281,6 +3324,15 @@ List of environment variables (most likely not complete):
                  This can be used to load and uncompress arbitrary
                  data.
 
+  fdt_high     - if set this restricts the maximum address that the
+                 flattened device tree will be copied into upon boot.
+                 If this is set to the special value 0xFFFFFFFF then
+                 the fdt will not be copied at all on boot.  For this
+                 to work it must reside in writable memory, have
+                 sufficient padding on the end of it for u-boot to
+                 add the information it needs into it, and the memory
+                 must be accessible by the kernel.
+
   i2cfast      - (PPC405GP|PPC405EP only)
                  if set to 'y' configures Linux I2C driver for fast
                  mode (400kHZ). This environment variable is used in