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67 lines
2.0 KiB
Diff
67 lines
2.0 KiB
Diff
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From 2e864d18c31d4e0255269f9e9cfccc09512676c6 Mon Sep 17 00:00:00 2001
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From: Daniel Hellstrom <daniel@gaisler.com>
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Date: Wed, 1 Dec 2010 16:51:38 +0100
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Subject: [PATCH] GRETH: added greth_no_gbit option
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Signed-off-by: Daniel Hellstrom <daniel@gaisler.com>
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---
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drivers/net/greth.c | 15 +++++++++++++--
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drivers/net/greth.h | 1 +
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2 files changed, 14 insertions(+), 2 deletions(-)
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--- a/drivers/net/greth.c
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+++ b/drivers/net/greth.c
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@@ -66,6 +66,10 @@ static int greth_edcl = 1;
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module_param(greth_edcl, int, 0);
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MODULE_PARM_DESC(greth_edcl, "GRETH EDCL usage indicator. Set to 1 if EDCL is used.");
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+static int no_gbit = 0;
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+module_param(no_gbit, int, S_IRUGO);
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+MODULE_PARM_DESC(no_gbit, "GRETH report GBit not supported by MAC enable. Only affects GRETH GBit MAC, default 0 (off).");
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+
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static int greth_open(struct net_device *dev);
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static netdev_tx_t greth_start_xmit(struct sk_buff *skb,
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struct net_device *dev);
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@@ -1284,7 +1288,7 @@ static int greth_mdio_probe(struct net_d
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}
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ret = phy_connect_direct(dev, phy, &greth_link_change,
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- 0, greth->gbit_mac ?
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+ 0, greth->gbit_phy_support ?
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PHY_INTERFACE_MODE_GMII :
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PHY_INTERFACE_MODE_MII);
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if (ret) {
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@@ -1293,7 +1297,7 @@ static int greth_mdio_probe(struct net_d
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return ret;
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}
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- if (greth->gbit_mac)
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+ if (greth->gbit_phy_support)
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phy->supported &= PHY_GBIT_FEATURES;
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else
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phy->supported &= PHY_BASIC_FEATURES;
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@@ -1441,6 +1445,13 @@ static int __devinit greth_of_probe(stru
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tmp = GRETH_REGLOAD(regs->control);
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greth->gbit_mac = (tmp >> 27) & 1;
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+ /* Let user skip GBit link mode by telling MDIO layer that MAC does
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+ * not support GBIT (for debug) */
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+ if (greth->gbit_mac && !no_gbit)
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+ greth->gbit_phy_support = 1;
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+ else
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+ greth->gbit_phy_support = 0;
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+
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/* Check for multicast capability */
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greth->multicast = (tmp >> 25) & 1;
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--- a/drivers/net/greth.h
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+++ b/drivers/net/greth.h
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@@ -138,6 +138,7 @@ struct greth_private {
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u8 gbit_mac;
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u8 mdio_int_en;
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u8 edcl;
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+ u8 gbit_phy_support;
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};
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#endif
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