layerscape: add support for fixed-link on RGMII interfaces
This is required on the Traverse LS1043 boards to support SFP and xDSL plug-ins. This will not be needed on kernel 4.14. Signed-off-by: Mathew McBride <matt@traverse.com.au>
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1 changed files with 62 additions and 0 deletions
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From f27ef8941ca29b2d10428754be51e8ee06bb1263 Mon Sep 17 00:00:00 2001
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From: Mathew McBride <matt@traverse.com.au>
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Date: Mon, 7 Aug 2017 10:19:48 +1000
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Subject: [PATCH] Recognize when an RGMII Link is set as fixed (in the device
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tree) and set up the MAC accordingly
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---
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drivers/net/ethernet/freescale/sdk_dpaa/mac.c | 1 +
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.../ethernet/freescale/sdk_fman/Peripherals/FM/MAC/memac.c | 13 +++++++++++++
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2 files changed, 14 insertions(+)
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--- a/drivers/net/ethernet/freescale/sdk_dpaa/mac.c
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+++ b/drivers/net/ethernet/freescale/sdk_dpaa/mac.c
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@@ -386,6 +386,7 @@ static int __cold mac_probe(struct platf
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mac_dev->fixed_link->duplex = phy->duplex;
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mac_dev->fixed_link->pause = phy->pause;
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mac_dev->fixed_link->asym_pause = phy->asym_pause;
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+ printk(KERN_INFO "Setting up fixed link, speed %d duplex %d\n", mac_dev->fixed_link->speed, mac_dev->fixed_link->duplex);
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}
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_errno = mac_dev->init(mac_dev);
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--- a/drivers/net/ethernet/freescale/sdk_fman/Peripherals/FM/MAC/memac.c
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+++ b/drivers/net/ethernet/freescale/sdk_fman/Peripherals/FM/MAC/memac.c
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@@ -36,6 +36,8 @@
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@Description FM mEMAC driver
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*//***************************************************************************/
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+#include <../../../../sdk_dpaa/mac.h>
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+#include <linux/phy_fixed.h>
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#include "std_ext.h"
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#include "string_ext.h"
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@@ -48,6 +50,8 @@
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#include "memac.h"
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+static t_Error MemacAdjustLink(t_Handle h_Memac, e_EnetSpeed speed, bool fullDuplex);
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+
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/*****************************************************************************/
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/* Internal routines */
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/*****************************************************************************/
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@@ -276,11 +280,20 @@ static t_Error MemacEnable(t_Handle h_Me
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{
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t_Memac *p_Memac = (t_Memac *)h_Memac;
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+ struct mac_device *mac_dev = (struct mac_device *)p_Memac->h_App;
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+
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SANITY_CHECK_RETURN_ERROR(p_Memac, E_INVALID_HANDLE);
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SANITY_CHECK_RETURN_ERROR(!p_Memac->p_MemacDriverParam, E_INVALID_STATE);
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fman_memac_enable(p_Memac->p_MemMap, (mode & e_COMM_MODE_RX), (mode & e_COMM_MODE_TX));
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+ if (ENET_INTERFACE_FROM_MODE(p_Memac->enetMode) == e_ENET_IF_RGMII) {
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+ if (mac_dev->fixed_link) {
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+ printk("This is a fixed-link, forcing speed %d duplex %d\n",mac_dev->fixed_link->speed,mac_dev->fixed_link->duplex);
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+ MemacAdjustLink(h_Memac,mac_dev->fixed_link->speed,mac_dev->fixed_link->duplex);
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+ }
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+ }
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+
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return E_OK;
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}
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