mirror of
https://github.com/u-boot/u-boot.git
synced 2025-04-11 15:34:55 +00:00
4cf712a3be
It seems that every remaining system which enables BITBANGMII also enables BITBANGMII_MULTI . Remove the BITBANGMII_MULTI symbol and assume it is always enabled. This allows removal of a bit of legacy code. No functional change intended. Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Reviewed-by: Paul Barker <paul.barker.ct@bp.renesas.com>
39 lines
1.6 KiB
Text
39 lines
1.6 KiB
Text
This patch rewrites the miiphybb ( Bit-banged MII bus driver ) in order to
|
|
support an arbitrary number of mii buses. This feature is useful when your
|
|
board uses different mii buses for different phys and all (or a part) of these
|
|
buses are implemented via bit-banging mode.
|
|
|
|
The driver requires that the following macros should be defined into the board
|
|
configuration file:
|
|
|
|
CONFIG_BITBANGMII - Enable the miiphybb driver
|
|
|
|
The board code needs to fill the bb_miiphy_buses[] array with a record for
|
|
each required bus and declare the bb_miiphy_buses_num variable with the
|
|
number of mii buses. The record (struct bb_miiphy_bus) has the following
|
|
fields/callbacks (see miiphy.h for details):
|
|
|
|
char name[] - The symbolic name that must be equal to the MII bus
|
|
registered name
|
|
int (*init)() - Initialization function called at startup time (just
|
|
before the Ethernet initialization)
|
|
int (*mdio_active)() - Activate the MDIO pin as output
|
|
int (*mdio_tristate)() - Activate the MDIO pin as input/tristate pin
|
|
int (*set_mdio)() - Write the MDIO pin
|
|
int (*get_mdio)() - Read the MDIO pin
|
|
int (*set_mdc)() - Write the MDC pin
|
|
int (*delay)() - Delay function
|
|
void *priv - Private data used by board specific code
|
|
|
|
The board code will look like:
|
|
|
|
struct bb_miiphy_bus bb_miiphy_buses[] = {
|
|
{ .name = "miibus#1", .init = b1_init, .mdio_active = b1_mdio_active, ... },
|
|
{ .name = "miibus#2", .init = b2_init, .mdio_active = b2_mdio_active, ... },
|
|
...
|
|
};
|
|
int bb_miiphy_buses_num = sizeof(bb_miiphy_buses) /
|
|
sizeof(bb_miiphy_buses[0]);
|
|
|
|
2009 Industrie Dial Face S.p.A.
|
|
Luigi 'Comio' Mantellini <luigi.mantellini@idf-hit.com>
|