diff options
Diffstat (limited to 'drivers/net/dsa/sja1105/sja1105_clocking.c')
| -rw-r--r-- | drivers/net/dsa/sja1105/sja1105_clocking.c | 58 |
1 files changed, 51 insertions, 7 deletions
diff --git a/drivers/net/dsa/sja1105/sja1105_clocking.c b/drivers/net/dsa/sja1105/sja1105_clocking.c index 0fdc2d55fff6..2a9b8a6a5306 100644 --- a/drivers/net/dsa/sja1105/sja1105_clocking.c +++ b/drivers/net/dsa/sja1105/sja1105_clocking.c @@ -7,12 +7,16 @@ #define SJA1105_SIZE_CGU_CMD 4 -struct sja1105_cfg_pad_mii_tx { +/* Common structure for CFG_PAD_MIIx_RX and CFG_PAD_MIIx_TX */ +struct sja1105_cfg_pad_mii { u64 d32_os; + u64 d32_ih; u64 d32_ipud; + u64 d10_ih; u64 d10_os; u64 d10_ipud; u64 ctrl_os; + u64 ctrl_ih; u64 ctrl_ipud; u64 clk_os; u64 clk_ih; @@ -338,16 +342,19 @@ static int sja1105_cgu_rgmii_tx_clk_config(struct sja1105_private *priv, /* AGU */ static void -sja1105_cfg_pad_mii_tx_packing(void *buf, struct sja1105_cfg_pad_mii_tx *cmd, - enum packing_op op) +sja1105_cfg_pad_mii_packing(void *buf, struct sja1105_cfg_pad_mii *cmd, + enum packing_op op) { const int size = 4; sja1105_packing(buf, &cmd->d32_os, 28, 27, size, op); + sja1105_packing(buf, &cmd->d32_ih, 26, 26, size, op); sja1105_packing(buf, &cmd->d32_ipud, 25, 24, size, op); sja1105_packing(buf, &cmd->d10_os, 20, 19, size, op); + sja1105_packing(buf, &cmd->d10_ih, 18, 18, size, op); sja1105_packing(buf, &cmd->d10_ipud, 17, 16, size, op); sja1105_packing(buf, &cmd->ctrl_os, 12, 11, size, op); + sja1105_packing(buf, &cmd->ctrl_ih, 10, 10, size, op); sja1105_packing(buf, &cmd->ctrl_ipud, 9, 8, size, op); sja1105_packing(buf, &cmd->clk_os, 4, 3, size, op); sja1105_packing(buf, &cmd->clk_ih, 2, 2, size, op); @@ -358,7 +365,7 @@ static int sja1105_rgmii_cfg_pad_tx_config(struct sja1105_private *priv, int port) { const struct sja1105_regs *regs = priv->info->regs; - struct sja1105_cfg_pad_mii_tx pad_mii_tx; + struct sja1105_cfg_pad_mii pad_mii_tx = {0}; u8 packed_buf[SJA1105_SIZE_CGU_CMD] = {0}; /* Payload */ @@ -375,12 +382,45 @@ static int sja1105_rgmii_cfg_pad_tx_config(struct sja1105_private *priv, pad_mii_tx.clk_os = 3; /* TX_CLK output stage */ pad_mii_tx.clk_ih = 0; /* TX_CLK input hysteresis (default) */ pad_mii_tx.clk_ipud = 2; /* TX_CLK input stage (default) */ - sja1105_cfg_pad_mii_tx_packing(packed_buf, &pad_mii_tx, PACK); + sja1105_cfg_pad_mii_packing(packed_buf, &pad_mii_tx, PACK); return sja1105_xfer_buf(priv, SPI_WRITE, regs->pad_mii_tx[port], packed_buf, SJA1105_SIZE_CGU_CMD); } +static int sja1105_cfg_pad_rx_config(struct sja1105_private *priv, int port) +{ + const struct sja1105_regs *regs = priv->info->regs; + struct sja1105_cfg_pad_mii pad_mii_rx = {0}; + u8 packed_buf[SJA1105_SIZE_CGU_CMD] = {0}; + + /* Payload */ + pad_mii_rx.d32_ih = 0; /* RXD[3:2] input stage hysteresis: */ + /* non-Schmitt (default) */ + pad_mii_rx.d32_ipud = 2; /* RXD[3:2] input weak pull-up/down */ + /* plain input (default) */ + pad_mii_rx.d10_ih = 0; /* RXD[1:0] input stage hysteresis: */ + /* non-Schmitt (default) */ + pad_mii_rx.d10_ipud = 2; /* RXD[1:0] input weak pull-up/down */ + /* plain input (default) */ + pad_mii_rx.ctrl_ih = 0; /* RX_DV/CRS_DV/RX_CTL and RX_ER */ + /* input stage hysteresis: */ + /* non-Schmitt (default) */ + pad_mii_rx.ctrl_ipud = 3; /* RX_DV/CRS_DV/RX_CTL and RX_ER */ + /* input stage weak pull-up/down: */ + /* pull-down */ + pad_mii_rx.clk_os = 2; /* RX_CLK/RXC output stage: */ + /* medium noise/fast speed (default) */ + pad_mii_rx.clk_ih = 0; /* RX_CLK/RXC input hysteresis: */ + /* non-Schmitt (default) */ + pad_mii_rx.clk_ipud = 2; /* RX_CLK/RXC input pull-up/down: */ + /* plain input (default) */ + sja1105_cfg_pad_mii_packing(packed_buf, &pad_mii_rx, PACK); + + return sja1105_xfer_buf(priv, SPI_WRITE, regs->pad_mii_rx[port], + packed_buf, SJA1105_SIZE_CGU_CMD); +} + static void sja1105_cfg_pad_mii_id_packing(void *buf, struct sja1105_cfg_pad_mii_id *cmd, enum packing_op op) @@ -669,10 +709,14 @@ int sja1105_clocking_setup_port(struct sja1105_private *priv, int port) phy_mode); return -EINVAL; } - if (rc) + if (rc) { dev_err(dev, "Clocking setup for port %d failed: %d\n", port, rc); - return rc; + return rc; + } + + /* Internally pull down the RX_DV/CRS_DV/RX_CTL and RX_ER inputs */ + return sja1105_cfg_pad_rx_config(priv, port); } int sja1105_clocking_setup(struct sja1105_private *priv) |