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path: root/drivers/net/phy/ti.c
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Diffstat (limited to 'drivers/net/phy/ti.c')
-rw-r--r--drivers/net/phy/ti.c88
1 files changed, 72 insertions, 16 deletions
diff --git a/drivers/net/phy/ti.c b/drivers/net/phy/ti.c
index 937426b..c55dd97 100644
--- a/drivers/net/phy/ti.c
+++ b/drivers/net/phy/ti.c
@@ -6,6 +6,14 @@
*/
#include <common.h>
#include <phy.h>
+#include <linux/compat.h>
+#include <malloc.h>
+
+#include <fdtdec.h>
+#include <dm.h>
+#include <dt-bindings/net/ti-dp83867.h>
+
+DECLARE_GLOBAL_DATA_PTR;
/* TI DP83867 */
#define DP83867_DEVADDR 0x1f
@@ -71,6 +79,17 @@
#define MII_MMD_CTRL_INCR_RDWT 0x8000 /* post increment on reads & writes */
#define MII_MMD_CTRL_INCR_ON_WT 0xC000 /* post increment on writes only */
+/* User setting - can be taken from DTS */
+#define DEFAULT_RX_ID_DELAY DP83867_RGMIIDCTL_2_25_NS
+#define DEFAULT_TX_ID_DELAY DP83867_RGMIIDCTL_2_75_NS
+#define DEFAULT_FIFO_DEPTH DP83867_PHYCR_FIFO_DEPTH_4_B_NIB
+
+struct dp83867_private {
+ int rx_id_delay;
+ int tx_id_delay;
+ int fifo_depth;
+};
+
/**
* phy_read_mmd_indirect - reads data from the MMD registers
* @phydev: The PHY device bus
@@ -137,27 +156,60 @@ void phy_write_mmd_indirect(struct phy_device *phydev, int prtad,
phy_write(phydev, addr, MII_MMD_DATA, data);
}
+#if defined(CONFIG_DM_ETH)
/**
- * phy_interface_is_rgmii - Convenience function for testing if a PHY interface
- * is RGMII (all variants)
+ * dp83867_data_init - Convenience function for setting PHY specific data
+ *
* @phydev: the phy_device struct
*/
-static inline bool phy_interface_is_rgmii(struct phy_device *phydev)
+static int dp83867_of_init(struct phy_device *phydev)
{
- return phydev->interface >= PHY_INTERFACE_MODE_RGMII &&
- phydev->interface <= PHY_INTERFACE_MODE_RGMII_TXID;
+ struct dp83867_private *dp83867 = phydev->priv;
+ struct udevice *dev = phydev->dev;
+
+ dp83867->rx_id_delay = fdtdec_get_uint(gd->fdt_blob, dev->of_offset,
+ "ti,rx-internal-delay", -1);
+
+ dp83867->tx_id_delay = fdtdec_get_uint(gd->fdt_blob, dev->of_offset,
+ "ti,tx-internal-delay", -1);
+
+ dp83867->fifo_depth = fdtdec_get_uint(gd->fdt_blob, dev->of_offset,
+ "ti,fifo-depth", -1);
+
+ return 0;
}
+#else
+static int dp83867_of_init(struct phy_device *phydev)
+{
+ struct dp83867_private *dp83867 = phydev->priv;
-/* User setting - can be taken from DTS */
-#define RX_ID_DELAY 8
-#define TX_ID_DELAY 0xa
-#define FIFO_DEPTH 1
+ dp83867->rx_id_delay = DEFAULT_RX_ID_DELAY;
+ dp83867->tx_id_delay = DEFAULT_TX_ID_DELAY;
+ dp83867->fifo_depth = DEFAULT_FIFO_DEPTH;
+
+ return 0;
+}
+#endif
static int dp83867_config(struct phy_device *phydev)
{
+ struct dp83867_private *dp83867;
unsigned int val, delay, cfg2;
int ret;
+ if (!phydev->priv) {
+ dp83867 = kzalloc(sizeof(*dp83867), GFP_KERNEL);
+ if (!dp83867)
+ return -ENOMEM;
+
+ phydev->priv = dp83867;
+ ret = dp83867_of_init(phydev);
+ if (ret)
+ goto err_out;
+ } else {
+ dp83867 = (struct dp83867_private *)phydev->priv;
+ }
+
/* Restart the PHY. */
val = phy_read(phydev, MDIO_DEVAD_NONE, DP83867_CTRL);
phy_write(phydev, MDIO_DEVAD_NONE, DP83867_CTRL,
@@ -166,10 +218,10 @@ static int dp83867_config(struct phy_device *phydev)
if (phy_interface_is_rgmii(phydev)) {
ret = phy_write(phydev, MDIO_DEVAD_NONE, MII_DP83867_PHYCTRL,
(DP83867_MDI_CROSSOVER_AUTO << DP83867_MDI_CROSSOVER) |
- (FIFO_DEPTH << DP83867_PHYCR_FIFO_DEPTH_SHIFT));
+ (dp83867->fifo_depth << DP83867_PHYCR_FIFO_DEPTH_SHIFT));
if (ret)
- return ret;
- } else {
+ goto err_out;
+ } else if (phy_interface_is_sgmii(phydev)) {
phy_write(phydev, MDIO_DEVAD_NONE, MII_BMCR,
(BMCR_ANENABLE | BMCR_FULLDPLX | BMCR_SPEED1000));
@@ -189,8 +241,8 @@ static int dp83867_config(struct phy_device *phydev)
DP83867_PHYCTRL_SGMIIEN |
(DP83867_MDI_CROSSOVER_MDIX <<
DP83867_MDI_CROSSOVER) |
- (FIFO_DEPTH << DP83867_PHYCTRL_RXFIFO_SHIFT) |
- (FIFO_DEPTH << DP83867_PHYCTRL_TXFIFO_SHIFT));
+ (dp83867->fifo_depth << DP83867_PHYCTRL_RXFIFO_SHIFT) |
+ (dp83867->fifo_depth << DP83867_PHYCTRL_TXFIFO_SHIFT));
phy_write(phydev, MDIO_DEVAD_NONE, MII_DP83867_BISCR, 0x0);
}
@@ -212,8 +264,8 @@ static int dp83867_config(struct phy_device *phydev)
phy_write_mmd_indirect(phydev, DP83867_RGMIICTL,
DP83867_DEVADDR, phydev->addr, val);
- delay = (RX_ID_DELAY |
- (TX_ID_DELAY << DP83867_RGMII_TX_CLK_DELAY_SHIFT));
+ delay = (dp83867->rx_id_delay |
+ (dp83867->tx_id_delay << DP83867_RGMII_TX_CLK_DELAY_SHIFT));
phy_write_mmd_indirect(phydev, DP83867_RGMIIDCTL,
DP83867_DEVADDR, phydev->addr, delay);
@@ -221,6 +273,10 @@ static int dp83867_config(struct phy_device *phydev)
genphy_config_aneg(phydev);
return 0;
+
+err_out:
+ kfree(dp83867);
+ return ret;
}
static struct phy_driver DP83867_driver = {