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stmmac: unify MAC and PHY configuration parameters (V2)

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Prior to this change, most PHY configuration parameters were passed
into the STMMAC device as a separate PHY device. As well as being
unusual, this made it difficult to make changes to the MAC/PHY
relationship.

This patch moves all the PHY parameters into the MAC configuration
structure, mainly as a separate structure. This allows us to completely
ignore the MDIO bus attached to a stmmac if desired, and not create
the PHY bus. It also allows the stmmac driver to use a different PHY
from the one it is connected to, for example a fixed PHY or bit banging
PHY.

Also derive the stmmac/PHY connection type (MII/RMII etc) from the
mode can be passed into <platf>_configure_ethernet.
STLinux kernel at git://git.stlinux.com/stm/linux-sh4-2.6.32.y.git
provides several examples how to use this new infrastructure (that
actually is easier to maintain and clearer).

Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Giuseppe CAVALLARO
2011-07-20 00:05:23 +00:00
committed by David S. Miller
parent f3240e2811
commit 36bcfe7d74
4 changed files with 77 additions and 131 deletions
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24
include/linux/stmmac.h
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@@ -28,11 +28,21 @@
#include <linux/platform_device.h>
/* platform data for platform device structure's platform_data field */
/* Platfrom data for platform device structure's platform_data field */
struct stmmac_mdio_bus_data {
int bus_id;
int (*phy_reset)(void *priv);
unsigned int phy_mask;
int *irqs;
int probed_phy_irq;
};
/* Private data for the STM on-board ethernet driver */
struct plat_stmmacenet_data {
int bus_id;
int phy_addr;
int interface;
struct stmmac_mdio_bus_data *mdio_bus_data;
int pbl;
int clk_csr;
int has_gmac;
@@ -48,14 +58,4 @@ struct plat_stmmacenet_data {
void *custom_cfg;
void *bsp_priv;
};
struct plat_stmmacphy_data {
int bus_id;
int phy_addr;
unsigned int phy_mask;
int interface;
int (*phy_reset)(void *priv);
void *priv;
};
#endif