Sry
CC:u-boot@lists.denx.de
On 01/19/2017 04:30 PM, Grygorii Strashko wrote:
From: Mugunthan V N mugunthanvnm@ti.com
Add support for programmable MAC impedance configuration and fix typo in DT impedance parameters names.
Signed-off-by: Mugunthan V N mugunthanvnm@ti.com Signed-off-by: Grygorii Strashko grygorii.strashko@ti.com
arch/arm/dts/dra72-evm-revc.dts | 4 ++-- drivers/net/phy/ti.c | 31 +++++++++++++++++++++++++++++++ 2 files changed, 33 insertions(+), 2 deletions(-)
diff --git a/arch/arm/dts/dra72-evm-revc.dts b/arch/arm/dts/dra72-evm-revc.dts index 5a1bb34..bc814f1 100644 --- a/arch/arm/dts/dra72-evm-revc.dts +++ b/arch/arm/dts/dra72-evm-revc.dts @@ -67,7 +67,7 @@ ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_25_NS>; ti,tx-internal-delay = <DP83867_RGMIIDCTL_250_PS>; ti,fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_8_B_NIB>;
ti,min-output-imepdance;
ti,min-output-impedance;};
dp83867_1: ethernet-phy@3 {
@@ -75,6 +75,6 @@ ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_25_NS>; ti,tx-internal-delay = <DP83867_RGMIIDCTL_250_PS>; ti,fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_8_B_NIB>;
ti,min-output-imepdance;
ti,min-output-impedance;}; diff --git a/drivers/net/phy/ti.c b/drivers/net/phy/ti.c index c55dd97..21b181a 100644 --- a/drivers/net/phy/ti.c +++ b/drivers/net/phy/ti.c @@ -27,6 +27,7 @@ DECLARE_GLOBAL_DATA_PTR; /* Extended Registers */ #define DP83867_RGMIICTL 0x0032 #define DP83867_RGMIIDCTL 0x0086 +#define DP83867_IO_MUX_CFG 0x0170
#define DP83867_SW_RESET BIT(15) #define DP83867_SW_RESTART BIT(14) @@ -84,10 +85,17 @@ DECLARE_GLOBAL_DATA_PTR; #define DEFAULT_TX_ID_DELAY DP83867_RGMIIDCTL_2_75_NS #define DEFAULT_FIFO_DEPTH DP83867_PHYCR_FIFO_DEPTH_4_B_NIB
+/* IO_MUX_CFG bits */ +#define DP83867_IO_MUX_CFG_IO_IMPEDANCE_CTRL 0x1f
+#define DP83867_IO_MUX_CFG_IO_IMPEDANCE_MAX 0x0 +#define DP83867_IO_MUX_CFG_IO_IMPEDANCE_MIN 0x1f
struct dp83867_private { int rx_id_delay; int tx_id_delay; int fifo_depth;
- int io_impedance;
};
/** @@ -166,6 +174,15 @@ static int dp83867_of_init(struct phy_device *phydev) { struct dp83867_private *dp83867 = phydev->priv; struct udevice *dev = phydev->dev;
int node = dev->of_offset;
const void *fdt = gd->fdt_blob;
if (fdtdec_get_bool(fdt, node, "ti,max-output-impedance"))
dp83867->io_impedance = DP83867_IO_MUX_CFG_IO_IMPEDANCE_MAX;else if (fdtdec_get_bool(fdt, node, "ti,min-output-impedance"))
dp83867->io_impedance = DP83867_IO_MUX_CFG_IO_IMPEDANCE_MIN;else
dp83867->io_impedance = -EINVAL;dp83867->rx_id_delay = fdtdec_get_uint(gd->fdt_blob, dev->of_offset, "ti,rx-internal-delay", -1);
@@ -186,6 +203,7 @@ static int dp83867_of_init(struct phy_device *phydev) dp83867->rx_id_delay = DEFAULT_RX_ID_DELAY; dp83867->tx_id_delay = DEFAULT_TX_ID_DELAY; dp83867->fifo_depth = DEFAULT_FIFO_DEPTH;
dp83867->io_impedance = -EINVAL;
return 0;
} @@ -269,6 +287,19 @@ static int dp83867_config(struct phy_device *phydev)
phy_write_mmd_indirect(phydev, DP83867_RGMIIDCTL, DP83867_DEVADDR, phydev->addr, delay);
if (dp83867->io_impedance >= 0) {val = phy_read_mmd_indirect(phydev,DP83867_IO_MUX_CFG,DP83867_DEVADDR,phydev->addr);val &= ~DP83867_IO_MUX_CFG_IO_IMPEDANCE_CTRL;val |= dp83867->io_impedance &DP83867_IO_MUX_CFG_IO_IMPEDANCE_CTRL;phy_write_mmd_indirect(phydev, DP83867_IO_MUX_CFG,DP83867_DEVADDR, phydev->addr,val);}}
genphy_config_aneg(phydev);