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net: stmmac: unify mdio functions

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stmmac_mdio_{read|write} and stmmac_mdio_{read|write}_gmac4 are not
enought different for being split.
The only differences between thoses two functions are shift/mask for
addr/reg/clk_csr.

This patch introduce a per platform set of variable for setting thoses
shift/mask and unify mdio read and write functions.

Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
LABBE Corentin
2016-12-01 16:19:41 +01:00
committed by David S. Miller
parent 01f1f615bd
commit b91dce4c5b
5 changed files with 48 additions and 98 deletions
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6
drivers/net/ethernet/stmicro/stmmac/common.h
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@@ -507,6 +507,12 @@ struct mac_link {
struct mii_regs {
unsigned int addr; /* MII Address */
unsigned int data; /* MII Data */
unsigned int addr_shift; /* MII address shift */
unsigned int reg_shift; /* MII reg shift */
unsigned int addr_mask; /* MII address mask */
unsigned int reg_mask; /* MII reg mask */
unsigned int clk_csr_shift;
unsigned int clk_csr_mask;
};
/* Helpers to manage the descriptors for chain and ring modes */