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drivers: net: phy: xgene: Add lock to protect mac access

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This patch,

- refactors mac access routine
- adds lock to protect mac indirect access

Signed-off-by: Quan Nguyen <qnguyen@apm.com>
Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Quan Nguyen
2017-05-10 13:45:00 -07:00
committed by David S. Miller
parent ae1aed95d0
commit 8ec7074a6b
2 changed files with 40 additions and 37 deletions
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3
drivers/net/phy/mdio-xgene.h
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@@ -102,6 +102,7 @@ struct xgene_mdio_pdata {
void __iomem *mdio_csr_addr;
struct mii_bus *mdio_bus;
int mdio_id;
spinlock_t mac_lock; /* mac lock */
};
/* Set the specified value into a bit-field defined by its starting position
@@ -132,6 +133,8 @@ static inline u64 xgene_enet_get_field_value(int pos, int len, u64 src)
#define GET_BIT(field, src) \
xgene_enet_get_field_value(field ## _POS, 1, src)
u32 xgene_mdio_rd_mac(struct xgene_mdio_pdata *pdata, u32 rd_addr);
void xgene_mdio_wr_mac(struct xgene_mdio_pdata *pdata, u32 wr_addr, u32 data);
int xgene_mdio_rgmii_read(struct mii_bus *bus, int phy_id, int reg);
int xgene_mdio_rgmii_write(struct mii_bus *bus, int phy_id, int reg, u16 data);
struct phy_device *xgene_enet_phy_register(struct mii_bus *bus, int phy_addr);