Drop digital thermometer and thermostat (DTT) drivers

[people/ms/u-boot.git] / README

diff --git a/README b/README
index 9f9265dc6d762a69632ce56be6355995733a40c5..b6bce6f558cb2dfa8c5563760f7c264814bb4f0e 100644 (file)
--- a/README
+++ b/README
@@ -292,7 +292,7 @@ board_init_r():
        - stack is optionally in SDRAM, if CONFIG_SPL_STACK_R is defined and
                CONFIG_SPL_STACK_R_ADDR points into SDRAM
        - preloader_console_init() can be called here - typically this is
        - stack is optionally in SDRAM, if CONFIG_SPL_STACK_R is defined and
                CONFIG_SPL_STACK_R_ADDR points into SDRAM
        - preloader_console_init() can be called here - typically this is

-               done by defining CONFIG_SPL_BOARD_INIT and then supplying a
+               done by selecting CONFIG_SPL_BOARD_INIT and then supplying a

                spl_board_init() function containing this call
        - loads U-Boot or (in falcon mode) Linux
 
                spl_board_init() function containing this call
        - loads U-Boot or (in falcon mode) Linux
 


@@ -830,11 +830,6 @@ The following options need to be configured:
                CONFIG_CMD_CRC32        * crc32
                CONFIG_CMD_DHCP         * DHCP support
                CONFIG_CMD_DIAG         * Diagnostics
                CONFIG_CMD_CRC32        * crc32
                CONFIG_CMD_DHCP         * DHCP support
                CONFIG_CMD_DIAG         * Diagnostics

-               CONFIG_CMD_DS4510       * ds4510 I2C gpio commands
-               CONFIG_CMD_DS4510_INFO  * ds4510 I2C info command
-               CONFIG_CMD_DS4510_MEM   * ds4510 I2C eeprom/sram commansd
-               CONFIG_CMD_DS4510_RST   * ds4510 I2C rst command
-               CONFIG_CMD_DTT          * Digital Therm and Thermostat

                CONFIG_CMD_ECHO           echo arguments
                CONFIG_CMD_EDITENV        edit env variable
                CONFIG_CMD_EEPROM       * EEPROM read/write support
                CONFIG_CMD_ECHO           echo arguments
                CONFIG_CMD_EDITENV        edit env variable
                CONFIG_CMD_EEPROM       * EEPROM read/write support


@@ -2204,37 +2199,7 @@ The following options need to be configured:
 
                If you do not have i2c muxes on your board, omit this define.
 
 
                If you do not have i2c muxes on your board, omit this define.
 

-----under removal:
-
-- Legacy I2C Support:  CONFIG_SOFT_I2C
-
-               NOTE: It is intended to move drivers to CONFIG_SYS_I2C which
-               provides the following compelling advantages:
-
-               - more than one i2c adapter is usable
-               - approved multibus support
-               - better i2c mux support
-
-               ** CONFIG_SOFT_I2C is now being removed **
-
-               With CONFIG_SOFT_I2C you will need to define
-               CONFIG_SYS_I2C_SPEED to be the frequency (in Hz) at which you
-               wish your i2c bus to run and CONFIG_SYS_I2C_SLAVE to be the
-               address of this node (ie the CPU's i2c node address).
-
-               Now, the u-boot i2c code for the mpc8xx
-               (arch/powerpc/cpu/mpc8xx/i2c.c) sets the CPU up as a master node
-               and so its address should therefore be cleared to 0 (See,
-               eg, MPC823e User's Manual p.16-473). So, set
-               CONFIG_SYS_I2C_SLAVE to 0.
-
-               When a board is reset during an i2c bus transfer
-               chips might think that the current transfer is still
-               in progress.  Reset the slave devices by sending start
-               commands until the slave device responds.
-
-               That's all that's required for CONFIG_HARD_I2C.
-
+- Legacy I2C Support:

                If you use the software i2c interface (CONFIG_SYS_I2C_SOFT)
                then the following macros need to be defined (examples are
                from include/configs/lwmon.h):
                If you use the software i2c interface (CONFIG_SYS_I2C_SOFT)
                then the following macros need to be defined (examples are
                from include/configs/lwmon.h):


@@ -2323,23 +2288,6 @@ The following options need to be configured:
                custom i2c_init_board() routine in boards/xxx/board.c
                is run early in the boot sequence.
 
                custom i2c_init_board() routine in boards/xxx/board.c
                is run early in the boot sequence.
 

-               CONFIG_SYS_I2C_BOARD_LATE_INIT
-
-               An alternative to CONFIG_SYS_I2C_INIT_BOARD. If this option is
-               defined a custom i2c_board_late_init() routine in
-               boards/xxx/board.c is run AFTER the operations in i2c_init()
-               is completed. This callpoint can be used to unreset i2c bus
-               using CPU i2c controller register accesses for CPUs whose i2c
-               controller provide such a method. It is called at the end of
-               i2c_init() to allow i2c_init operations to setup the i2c bus
-               controller on the CPU (e.g. setting bus speed & slave address).
-
-               CONFIG_I2CFAST (PPC405GP|PPC405EP only)
-
-               This option enables configuration of bi_iic_fast[] flags
-               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
                CONFIG_I2C_MULTI_BUS
 
                This option allows the use of multiple I2C buses, each of which


@@ -2375,17 +2323,6 @@ The following options need to be configured:
                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.
 
                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.
 

-               CONFIG_SYS_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_SYS_I2C_DTT_ADDR:
-
-               If defined, specifies the I2C address of the DTT device.
-               If not defined, then U-Boot uses predefined value for
-               specified DTT device.
-

                CONFIG_SOFT_I2C_READ_REPEATED_START
 
                defining this will force the i2c_read() function in
                CONFIG_SOFT_I2C_READ_REPEATED_START
 
                defining this will force the i2c_read() function in


@@ -2803,19 +2740,6 @@ The following options need to be configured:
                Enable the hash verify command (hash -v). This adds to code
                size a little.
 
                Enable the hash verify command (hash -v). This adds to code
                size a little.
 

-               CONFIG_SHA1 - This option enables support of hashing using SHA1
-               algorithm. The hash is calculated in software.
-               CONFIG_SHA256 - This option enables support of hashing using
-               SHA256 algorithm. The hash is calculated in software.
-               CONFIG_SHA_HW_ACCEL - This option enables hardware acceleration
-               for SHA1/SHA256 hashing.
-               This affects the 'hash' command and also the
-               hash_lookup_algo() function.
-               CONFIG_SHA_PROG_HW_ACCEL - This option enables
-               hardware-acceleration for SHA1/SHA256 progressive hashing.
-               Data can be streamed in a block at a time and the hashing
-               is performed in hardware.
-

                Note: There is also a sha1sum command, which should perhaps
                be deprecated in favour of 'hash sha1'.
 
                Note: There is also a sha1sum command, which should perhaps
                be deprecated in favour of 'hash sha1'.
 


@@ -3020,15 +2944,6 @@ FIT uImage format:
                This define is introduced, as the legacy image format is
                enabled per default for backward compatibility.
 
                This define is introduced, as the legacy image format is
                enabled per default for backward compatibility.
 

-- FIT image support:
-               CONFIG_FIT_DISABLE_SHA256
-               Supporting SHA256 hashes has quite an impact on binary size.
-               For constrained systems sha256 hash support can be disabled
-               with this option.
-
-               TODO(sjg@chromium.org): Adjust this option to be positive,
-               and move it to Kconfig
-

 - Standalone program support:
                CONFIG_STANDALONE_LOAD_ADDR
 
 - Standalone program support:
                CONFIG_STANDALONE_LOAD_ADDR
 


@@ -3693,11 +3608,6 @@ Configuration Settings:
        If defined, don't allow the -f switch to env set override variable
        access flags.
 
        If defined, don't allow the -f switch to env set override variable
        access flags.
 

-- 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 calculated on a given board.
-

 - CONFIG_USE_STDINT
        If stdint.h is available with your toolchain you can define this
        option to enable it. You can provide option 'USE_STDINT=1' when
 - CONFIG_USE_STDINT
        If stdint.h is available with your toolchain you can define this
        option to enable it. You can provide option 'USE_STDINT=1' when