| Message ID | 20170423153525.14882-12-sjg@chromium.org |
|---|---|
| State | Accepted |
| Commit | ce3b5d69112b1adc878e06586c1bc819414309be |
| Delegated to: | Heiko Schocher |
| Headers | show |
Hello Simon, Am 23.04.2017 um 17:35 schrieb Simon Glass: > This option is not used in U-Boot. Drop it. > > Signed-off-by: Simon Glass <sjg@chromium.org> > --- > > README | 32 +------------------------------- > 1 file changed, 1 insertion(+), 31 deletions(-) Reviewed-by: Heiko Schocher <hs@denx.de> Applied to u-boot-i2c/next bye, Heiko > > diff --git a/README b/README > index 9798292f8d..f71374444d 100644 > --- a/README > +++ b/README > @@ -2214,37 +2214,7 @@ 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): >
diff --git a/README b/README index 9798292f8d..f71374444d 100644 --- a/README +++ b/README @@ -2214,37 +2214,7 @@ 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):
This option is not used in U-Boot. Drop it. Signed-off-by: Simon Glass <sjg@chromium.org> --- README | 32 +------------------------------- 1 file changed, 1 insertion(+), 31 deletions(-)