X-Git-Url: http://git.ipfire.org/?a=blobdiff_plain;f=README;h=6b94f8482c5c55816a9d878c006d1d64f641aa0b;hb=bb99ad6d8257bf828f150d40f507b30d80a4a7ae;hp=32a5d686921505e9aec29f0c36c610ca859278ad;hpb=daaba9859b0b94571dc3e45ad0c26e136426b351;p=people%2Fms%2Fu-boot.git

diff --git a/README b/README
index 32a5d68692..6b94f8482c 100644
--- a/README
+++ b/README
@@ -132,6 +132,7 @@ Directory Hierarchy:
   - arm925t	Files specific to ARM 925 CPUs
   - arm926ejs	Files specific to ARM 926 CPUs
   - arm1136	Files specific to ARM 1136 CPUs
+  - at32ap	Files specific to Atmel AVR32 AP CPUs
   - i386	Files specific to i386 CPUs
   - ixp		Files specific to Intel XScale IXP CPUs
   - mcf52x2	Files specific to Freescale ColdFire MCF52x2 CPUs
@@ -156,6 +157,7 @@ Directory Hierarchy:
 - examples	Example code for standalone applications, etc.
 - include	Header Files
 - lib_arm	Files generic to ARM	 architecture
+- lib_avr32	Files generic to AVR32	 architecture
 - lib_generic	Files generic to all	 architectures
 - lib_i386	Files generic to i386	 architecture
 - lib_m68k	Files generic to m68k	 architecture
@@ -256,6 +258,9 @@ The following options need to be configured:
 		----------------------
 		CONFIG_NIOS2
 
+		AVR32 based CPUs:
+		----------------------
+		CONFIG_AT32AP
 
 - Board Type:	Define exactly one of
 
@@ -325,6 +330,15 @@ The following options need to be configured:
 		CONFIG_PCI5441 CONFIG_PK1C20
 		CONFIG_EP1C20 CONFIG_EP1S10 CONFIG_EP1S40
 
+		AVR32 based boards:
+		-------------------
+
+		CONFIG_ATSTK1000
+
+- CPU Daughterboard Type: (if CONFIG_ATSTK1000 is defined)
+		Define exactly one of
+		CONFIG_ATSTK1002
+
 
 - CPU Module Type: (if CONFIG_COGENT is defined)
 		Define exactly one of
@@ -1193,7 +1207,12 @@ The following options need to be configured:
 		clock chips. See common/cmd_i2c.c for a description of the
 		command line interface.
 
-		CONFIG_HARD_I2C selects the CPM hardware driver for I2C.
+		CONFIG_I2C_CMD_TREE is a recommended option that places
+		all I2C commands under a single 'i2c' root command.  The
+		older 'imm', 'imd', 'iprobe' etc. commands are considered
+		deprecated and may disappear in the future.
+
+		CONFIG_HARD_I2C selects a hardware I2C controller.
 
 		CONFIG_SOFT_I2C configures u-boot to use a software (aka
 		bit-banging) driver instead of CPM or similar hardware
@@ -1298,6 +1317,31 @@ The following options need to be configured:
 		in u-boot bd_info structure based on u-boot environment
 		variable "i2cfast". (see also i2cfast)
 
+		CONFIG_I2C_MULTI_BUS
+
+		This option allows the use of multiple I2C buses, each of which
+		must have a controller.  At any point in time, only one bus is
+		active.  To switch to a different bus, use the 'i2c dev' command.
+		Note that bus numbering is zero-based.
+
+		CFG_I2C_NOPROBES
+
+		This option specifies a list of I2C devices that will be skipped
+		when the 'i2c probe' command is issued (or 'iprobe' using the legacy
+		command).  If CONFIG_I2C_MULTI_BUS is set, specify a list of bus-device
+		pairs.  Otherwise, specify a 1D array of device addresses
+
+		e.g.
+			#undef	CONFIG_I2C_MULTI_BUS
+			#define CFG_I2C_NOPROBES	{0x50,0x68}
+
+		will skip addresses 0x50 and 0x68 on a board with one I2C bus
+
+			#define	CONFIG_I2C_MULTI_BUS
+			#define CFG_I2C_MULTI_NOPROBES	{{0,0x50},{0,0x68},{1,0x54}}
+
+		will skip addresses 0x50 and 0x68 on bus 0 and address 0x54 on bus 1
+
 - SPI Support:	CONFIG_SPI
 
 		Enables SPI driver (so far only tested with
@@ -1452,10 +1496,14 @@ The following options need to be configured:
 		default value of 5 is used.
 
 - Command Interpreter:
-		CFG_AUTO_COMPLETE
+		CONFIG_AUTO_COMPLETE
 
 		Enable auto completion of commands using TAB.
 
+                Note that this feature has NOT been implemented yet
+                for the "hush" shell.
+
+
 		CFG_HUSH_PARSER
 
 		Define this variable to enable the "hush" shell (from
@@ -2191,6 +2239,16 @@ Low Level (hardware related) configuration options:
   CFG_POCMR2_MASK_ATTRIB: (MPC826x only)
 		Overrides the default PCI memory map in cpu/mpc8260/pci.c if set.
 
+- CONFIG_SPD_EEPROM
+		Get DDR timing information from an I2C EEPROM.  Common with pluggable
+		memory modules such as SODIMMs
+  SPD_EEPROM_ADDRESS
+		I2C address of the SPD EEPROM
+
+- CFG_SPD_BUS_NUM
+		If SPD EEPROM is on an I2C bus other than the first one, specify here.
+		Note that the value must resolve to something your driver can deal with.
+
 - CONFIG_ETHER_ON_FEC[12]
 		Define to enable FEC[12] on a 8xx series processor.
 
@@ -2727,9 +2785,9 @@ defines the following image properties:
   4.4BSD, Linux, SVR4, Esix, Solaris, Irix, SCO, Dell, NCR, VxWorks,
   LynxOS, pSOS, QNX, RTEMS, ARTOS;
   Currently supported: Linux, NetBSD, VxWorks, QNX, RTEMS, ARTOS, LynxOS).
-* Target CPU Architecture (Provisions for Alpha, ARM, Intel x86,
+* Target CPU Architecture (Provisions for Alpha, ARM, AVR32, Intel x86,
   IA64, MIPS, NIOS, PowerPC, IBM S390, SuperH, Sparc, Sparc 64 Bit;
-  Currently supported: ARM, Intel x86, MIPS, NIOS, PowerPC).
+  Currently supported: ARM, AVR32, Intel x86, MIPS, NIOS, PowerPC).
 * Compression Type (uncompressed, gzip, bzip2)
 * Load Address
 * Entry Point