[PATCH] Clean up Katmai (440SPe) linker script

[u-boot] / README

diff --git a/README b/README
index 8d876e435e2f3d4c81c8a9b7016d001490ff858d..15428643edef7ea77710113f8908002b50328577 100644 (file)
--- a/README
+++ b/README
@@ -1207,7 +1207,12 @@ The following options need to be configured:
                clock chips. See common/cmd_i2c.c for a description of the
                command line interface.
 
                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
 
                CONFIG_SOFT_I2C configures u-boot to use a software (aka
                bit-banging) driver instead of CPM or similar hardware


@@ -1312,6 +1317,52 @@ The following options need to be configured:
                in u-boot bd_info structure based on u-boot environment
                variable "i2cfast". (see also i2cfast)
 
                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
+
+               CFG_SPD_BUS_NUM
+
+               If defined, then this indicates the I2C bus number for DDR SPD.
+               If not defined, then U-Boot assumes that SPD is on I2C bus 0.
+
+               CFG_RTC_BUS_NUM
+
+               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.
+
+               CFG_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_FSL_I2C
+
+               Define this option if you want to use Freescale's I2C driver in
+               drivers/fsl_i2c.c.
+
+

 - SPI Support: CONFIG_SPI
 
                Enables SPI driver (so far only tested with
 - SPI Support: CONFIG_SPI
 
                Enables SPI driver (so far only tested with


@@ -1466,10 +1517,14 @@ The following options need to be configured:
                default value of 5 is used.
 
 - Command Interpreter:
                default value of 5 is used.
 
 - Command Interpreter:

-               CFG_AUTO_COMPLETE
+               CONFIG_AUTO_COMPLETE

 
                Enable auto completion of commands using TAB.
 
 
                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
                CFG_HUSH_PARSER
 
                Define this variable to enable the "hush" shell (from


@@ -2205,6 +2260,24 @@ 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.
 
   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.
+
+- CFG_83XX_DDR_USES_CS0
+               Only for 83xx systems. If specified, then DDR should be configured
+               using CS0 and CS1 instead of CS2 and CS3.
+
+- CFG_83XX_DDR_USES_CS0
+               Only for 83xx systems. If specified, then DDR should be configured
+               using CS0 and CS1 instead of CS2 and CS3.
+

 - CONFIG_ETHER_ON_FEC[12]
                Define to enable FEC[12] on a 8xx series processor.
 
 - CONFIG_ETHER_ON_FEC[12]
                Define to enable FEC[12] on a 8xx series processor.
 


@@ -3110,11 +3183,11 @@ loadaddr=200000
 oftaddr=0x300000
 => bootm $loadaddr - $oftaddr
 ## Booting image at 00200000 ...
 oftaddr=0x300000
 => bootm $loadaddr - $oftaddr
 ## Booting image at 00200000 ...

-   Image Name:   Linux-2.6.17-dirty
-   Image Type:   PowerPC Linux Kernel Image (gzip compressed)
-   Data Size:    1029343 Bytes = 1005.2 kB
+   Image Name:  Linux-2.6.17-dirty
+   Image Type:  PowerPC Linux Kernel Image (gzip compressed)
+   Data Size:   1029343 Bytes = 1005.2 kB

    Load Address: 00000000
    Load Address: 00000000

-   Entry Point:  00000000
+   Entry Point:         00000000

    Verifying Checksum ... OK
    Uncompressing Kernel Image ... OK
 Booting using flat device tree at 0x300000
    Verifying Checksum ... OK
    Uncompressing Kernel Image ... OK
 Booting using flat device tree at 0x300000