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Commit 7b3742af authored by Cyril Chemparathy's avatar Cyril Chemparathy Committed by Kevin Hilman
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net: davinci_emac: cleanup unused mdio emac code 

This patch removes code that has been rendered useless by the previous patches
in this series.
Signed-off-by: default avatarCyril Chemparathy <cyril@ti.com>
Acked-by: default avatarDavid S. Miller <davem@davemloft.net>
Tested-by: default avatarMichael Williamson <michael.williamson@criticallink.com>
Tested-by: default avatarCaglar Akyuz <caglarakyuz@gmail.com>
Signed-off-by: default avatarKevin Hilman <khilman@deeprootsystems.com>
parent 3b2a40a0
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drivers/net/davinci_emac.c
View file @ 7b3742af
......@@ -113,7 +113,6 @@ static const char emac_version_string[] = "TI DaVinci EMAC Linux v6.1";
#define EMAC_DEF_MAX_FRAME_SIZE (1500 + 14 + 4 + 4)
#define EMAC_DEF_TX_CH (0) /* Default 0th channel */
#define EMAC_DEF_RX_CH (0) /* Default 0th channel */
#define EMAC_DEF_MDIO_TICK_MS (10) /* typically 1 tick=1 ms) */
#define EMAC_DEF_MAX_TX_CH (1) /* Max TX channels configured */
#define EMAC_DEF_MAX_RX_CH (1) /* Max RX channels configured */
#define EMAC_POLL_WEIGHT (64) /* Default NAPI poll weight */
......@@ -303,25 +302,6 @@ static const char emac_version_string[] = "TI DaVinci EMAC Linux v6.1";
#define EMAC_DM644X_INTMIN_INTVL 0x1
#define EMAC_DM644X_INTMAX_INTVL (EMAC_DM644X_EWINTCNT_MASK)
/* EMAC MDIO related */
/* Mask & Control defines */
#define MDIO_CONTROL_CLKDIV (0xFF)
#define MDIO_CONTROL_ENABLE BIT(30)
#define MDIO_USERACCESS_GO BIT(31)
#define MDIO_USERACCESS_WRITE BIT(30)
#define MDIO_USERACCESS_READ (0)
#define MDIO_USERACCESS_REGADR (0x1F << 21)
#define MDIO_USERACCESS_PHYADR (0x1F << 16)
#define MDIO_USERACCESS_DATA (0xFFFF)
#define MDIO_USERPHYSEL_LINKSEL BIT(7)
#define MDIO_VER_MODID (0xFFFF << 16)
#define MDIO_VER_REVMAJ (0xFF << 8)
#define MDIO_VER_REVMIN (0xFF)
#define MDIO_USERACCESS(inst) (0x80 + (inst * 8))
#define MDIO_USERPHYSEL(inst) (0x84 + (inst * 8))
#define MDIO_CONTROL (0x04)
/* EMAC DM646X control module registers */
#define EMAC_DM646X_CMINTCTRL 0x0C
#define EMAC_DM646X_CMRXINTEN 0x14
......@@ -493,13 +473,6 @@ struct emac_priv {
u32 mac_hash2;
u32 multicast_hash_cnt[EMAC_NUM_MULTICAST_BITS];
u32 rx_addr_type;
/* periodic timer required for MDIO polling */
struct timer_list periodic_timer;
u32 periodic_ticks;
u32 timer_active;
u32 phy_mask;
/* mii_bus,phy members */
struct mii_bus *mii_bus;
const char *phy_id;
struct phy_device *phydev;
spinlock_t lock;
......@@ -511,7 +484,6 @@ struct emac_priv {
/* clock frequency for EMAC */
static struct clk *emac_clk;
static unsigned long emac_bus_frequency;
static unsigned long mdio_max_freq;
#define emac_virt_to_phys(addr, priv) \
(((u32 __force)(addr) - (u32 __force)(priv->emac_ctrl_ram)) \
......@@ -549,9 +521,6 @@ static char *emac_rxhost_errcodes[16] = {
#define emac_ctrl_read(reg) ioread32((priv->ctrl_base + (reg)))
#define emac_ctrl_write(reg, val) iowrite32(val, (priv->ctrl_base + (reg)))
#define emac_mdio_read(reg) ioread32(bus->priv + (reg))
#define emac_mdio_write(reg, val) iowrite32(val, (bus->priv + (reg)))
/**
* emac_dump_regs: Dump important EMAC registers to debug terminal
* @priv: The DaVinci EMAC private adapter structure
......@@ -657,9 +626,6 @@ static void emac_dump_regs(struct emac_priv *priv)
emac_read(EMAC_RXDMAOVERRUNS));
}
/*************************************************************************
* EMAC MDIO/Phy Functionality
*************************************************************************/
/**
* emac_get_drvinfo: Get EMAC driver information
* @ndev: The DaVinci EMAC network adapter
......@@ -2349,79 +2315,6 @@ void emac_poll_controller(struct net_device *ndev)
}
#endif
/* PHY/MII bus related */
/* Wait until mdio is ready for next command */
#define MDIO_WAIT_FOR_USER_ACCESS\
while ((emac_mdio_read((MDIO_USERACCESS(0))) &\
MDIO_USERACCESS_GO) != 0)
static int emac_mii_read(struct mii_bus *bus, int phy_id, int phy_reg)
{
unsigned int phy_data = 0;
unsigned int phy_control;
/* Wait until mdio is ready for next command */
MDIO_WAIT_FOR_USER_ACCESS;
phy_control = (MDIO_USERACCESS_GO |
MDIO_USERACCESS_READ |
((phy_reg << 21) & MDIO_USERACCESS_REGADR) |
((phy_id << 16) & MDIO_USERACCESS_PHYADR) |
(phy_data & MDIO_USERACCESS_DATA));
emac_mdio_write(MDIO_USERACCESS(0), phy_control);
/* Wait until mdio is ready for next command */
MDIO_WAIT_FOR_USER_ACCESS;
return emac_mdio_read(MDIO_USERACCESS(0)) & MDIO_USERACCESS_DATA;
}
static int emac_mii_write(struct mii_bus *bus, int phy_id,
int phy_reg, u16 phy_data)
{
unsigned int control;
/* until mdio is ready for next command */
MDIO_WAIT_FOR_USER_ACCESS;
control = (MDIO_USERACCESS_GO |
MDIO_USERACCESS_WRITE |
((phy_reg << 21) & MDIO_USERACCESS_REGADR) |
((phy_id << 16) & MDIO_USERACCESS_PHYADR) |
(phy_data & MDIO_USERACCESS_DATA));
emac_mdio_write(MDIO_USERACCESS(0), control);
return 0;
}
static int emac_mii_reset(struct mii_bus *bus)
{
unsigned int clk_div;
int mdio_bus_freq = emac_bus_frequency;
if (mdio_max_freq && mdio_bus_freq)
clk_div = ((mdio_bus_freq / mdio_max_freq) - 1);
else
clk_div = 0xFF;
clk_div &= MDIO_CONTROL_CLKDIV;
/* Set enable and clock divider in MDIOControl */
emac_mdio_write(MDIO_CONTROL, (clk_div | MDIO_CONTROL_ENABLE));
return 0;
}
static int mii_irqs[PHY_MAX_ADDR] = { PHY_POLL, PHY_POLL };
/* emac_driver: EMAC MII bus structure */
static struct mii_bus *emac_mii;
static void emac_adjust_link(struct net_device *ndev)
{
struct emac_priv *priv = netdev_priv(ndev);
......
include/linux/davinci_emac.h
View file @ 7b3742af
......@@ -24,10 +24,7 @@ struct emac_platform_data {
u32 ctrl_mod_reg_offset;
u32 ctrl_ram_offset;
u32 hw_ram_addr;
u32 mdio_reg_offset;
u32 ctrl_ram_size;
u32 phy_mask;
u32 mdio_max_freq;
/*
* phy_id can be one of the following:
......
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