Commit 045f77ba authored by David Gounaris's avatar David Gounaris Committed by David S. Miller
Browse files

net/wan/fsl_ucc_hdlc: hmask 



Ability to set hmask in the device-tree,
which can be used to change address
filtering of packets.

Signed-off-by: default avatarDavid Gounaris <david.gounaris@infinera.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 8978ca7c

Documentation/devicetree/bindings/soc/fsl/cpm_qe/network.txt

+6 −0
Original line number Diff line number Diff line
@@ -98,6 +98,12 @@ The property below is dependent on fsl,tdm-interface: 
	usage: optional for tdm interface

	value type: <empty>

	Definition : Internal loopback connecting on TDM layer.

- fsl,hmask

	usage: optional

	Value type: <u16>

	Definition: HDLC address recognition. Set to zero to disable

		    address filtering of packets:

		    fsl,hmask = /bits/ 16 <0x0000>;



Example for tdm interface:

drivers/net/wan/fsl_ucc_hdlc.c

+4 −1
Original line number Diff line number Diff line
@@ -265,7 +265,7 @@ static int uhdlc_init(struct ucc_hdlc_private *priv) 
	iowrite16be(MAX_FRAME_LENGTH, &priv->ucc_pram->mflr);

	iowrite16be(DEFAULT_RFTHR, &priv->ucc_pram->rfthr);

	iowrite16be(DEFAULT_RFTHR, &priv->ucc_pram->rfcnt);

	iowrite16be(DEFAULT_ADDR_MASK, &priv->ucc_pram->hmask);

	iowrite16be(priv->hmask, &priv->ucc_pram->hmask);

	iowrite16be(DEFAULT_HDLC_ADDR, &priv->ucc_pram->haddr1);

	iowrite16be(DEFAULT_HDLC_ADDR, &priv->ucc_pram->haddr2);

	iowrite16be(DEFAULT_HDLC_ADDR, &priv->ucc_pram->haddr3);
@@ -1096,6 +1096,9 @@ static int ucc_hdlc_probe(struct platform_device *pdev) 
			goto free_utdm;

	}



	if (of_property_read_u16(np, "fsl,hmask", &uhdlc_priv->hmask))

		uhdlc_priv->hmask = DEFAULT_ADDR_MASK;



	ret = uhdlc_init(uhdlc_priv);

	if (ret) {

		dev_err(&pdev->dev, "Failed to init uhdlc\n");

drivers/net/wan/fsl_ucc_hdlc.h

+1 −0
Original line number Diff line number Diff line
@@ -106,6 +106,7 @@ struct ucc_hdlc_private { 


	unsigned short encoding;

	unsigned short parity;

	unsigned short hmask;

	u32 clocking;

	spinlock_t lock;	/* lock for Tx BD and Tx buffer */

#ifdef CONFIG_PM

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