| f3e74d0a | 03-Feb-2014 |
Rainer Boschung <rainer.boschung@keymile.com> |
kmp204x: I2C deblocking support
This patch adds support for using some GPIOs that are connected to the
I2C bus to force the bus lines state and perform some bus deblocking
sequences.
The KM common
kmp204x: I2C deblocking support
This patch adds support for using some GPIOs that are connected to the
I2C bus to force the bus lines state and perform some bus deblocking
sequences.
The KM common deblocking algorithm from board/keymile/common/common.c is
used. The GPIO lines used for deblocking the I2C bus are some external
GPIOs provided by the QRIO CPLD:
- SCL = GPIOA_20
- SDA = GPIOA_21
The QRIO GPIOs act in an open-drain-like manner, for 0 the line is
driven low and for 1 the GPIO is set as input and the line gets
pulled-up.
Signed-off-by: Rainer Boschung <rainer.boschung@keymile.com>
Signed-off-by: Valentin Longchamp <valentin.longchamp@keymile.com>
Reviewed-by: York Sun <yorksun@freescale.com>
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| 87ea2c0f | 27-Jan-2014 |
Valentin Longchamp <valentin.longchamp@keymile.com> |
kmp204x: introduce QRIO GPIO functions
The QRIO GPIO functions can be of general interest. They are thus added
to a qrio.c and their prototype are available from kmp204x.h. The QRIO
prst function ar
kmp204x: introduce QRIO GPIO functions
The QRIO GPIO functions can be of general interest. They are thus added
to a qrio.c and their prototype are available from kmp204x.h. The QRIO
prst function are also included in this file, as well as the functions
required for the I2C deblocking support (open-drain).
Signed-off-by: Valentin Longchamp <valentin.longchamp@keymile.com>
[York Sun: Remove extra blank line in board/keymile/kmp204x/qrio.c]
Signed-off-by: York Sun <yorksun@freescale.com>
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| 99f6249a | 18-Oct-2013 |
Valentin Longchamp <valentin.longchamp@keymile.com> |
KM: add CONFIG_KM_COMMON_ETH_INIT for km common eth init
This must be defined by a board support file that want to use the
keymile common.c board_eth_init function that requires ethernet_present
to
KM: add CONFIG_KM_COMMON_ETH_INIT for km common eth init
This must be defined by a board support file that want to use the
keymile common.c board_eth_init function that requires ethernet_present
to be defined.
Currently all the km architectures use it but the kmp204x architecture
later supported in this series does use another board_eth_init function
and thus does not define it.
Signed-off-by: Valentin Longchamp <valentin.longchamp@keymile.com>
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| a3b88121 | 04-Jul-2013 |
Holger Brunck <holger.brunck@keymile.com> |
powerpc/83xx: remove staticness for qe_iop_conf_tab
commit a5510058 powerpc/83xx/km: make local functions and structs static
removed the staticness also from this struct. But this struct is needed
powerpc/83xx: remove staticness for qe_iop_conf_tab
commit a5510058 powerpc/83xx/km: make local functions and structs static
removed the staticness also from this struct. But this struct is needed
in arch/powerpc/cpu/mpc83xx/cpu_init.c and declared as extern.
Signed-off-by: Holger Brunck <holger.brunck@keymile.com>
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| f3e93617 | 25-Oct-2012 |
Heiko Schocher <hs@denx.de> |
i2c, multibus, keymile: get rid of EEprom_ivm envvariable
as the keymile boards use now the new i2c multibus/multiadapter
framework, remove the EEprom_ivm Environmentvar, as not longer
needed.
Sign
i2c, multibus, keymile: get rid of EEprom_ivm envvariable
as the keymile boards use now the new i2c multibus/multiadapter
framework, remove the EEprom_ivm Environmentvar, as not longer
needed.
Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Holger Brunck <holger.brunck@keymile.com>
Tested-By: Holger Brunck <holger.brunck@keymile.com>
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