[U-Boot] [PATCH v3 12/12] Drop use of CONFIG_I2C_SOFT
Heiko Schocher
hs at denx.de
Mon May 15 04:26:25 UTC 2017
Hello Simon,
Am 13.05.2017 um 05:10 schrieb Simon Glass:
> This option is not used in U-Boot. Drop it.
>
> Signed-off-by: Simon Glass <sjg at chromium.org>
> ---
>
> Changes in v3:
> - Rebase to master
>
> Changes in v2:
> - Rebase to master
>
> README | 32 +-------------------------------
> 1 file changed, 1 insertion(+), 31 deletions(-)
Thanks!
Applied to u-boot-i2c.git master
u-boot-i2c master just testing on travis:
https://travis-ci.org/hsdenx/u-boot-i2c/builds/232288665
bye,
Heiko
>
> diff --git a/README b/README
> index 71d8de0ba8..9525199551 100644
> --- a/README
> +++ b/README
> @@ -2204,37 +2204,7 @@ The following options need to be configured:
>
> 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):
>
--
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