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authorMathew McBride <matt@traverse.com.au>2018-04-17 09:45:11 +1000
committerJohn Crispin <john@phrozen.org>2018-07-30 10:53:57 +0200
commit2203815f05162c357fbf96b3da8098f687a86d04 (patch)
treec11db47520c3105d97d9c23af9419161b70ae76d /target
parent40120ca6709c4f47d739688797a39c31859d3a85 (diff)
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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>
Diffstat (limited to 'target')
-rw-r--r--target/linux/layerscape/patches-4.9/820-rgmii-fixed-link.patch62
1 files changed, 62 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-4.9/820-rgmii-fixed-link.patch b/target/linux/layerscape/patches-4.9/820-rgmii-fixed-link.patch
new file mode 100644
index 0000000000..b867b1805a
--- /dev/null
+++ b/target/linux/layerscape/patches-4.9/820-rgmii-fixed-link.patch
@@ -0,0 +1,62 @@
+From f27ef8941ca29b2d10428754be51e8ee06bb1263 Mon Sep 17 00:00:00 2001
+From: Mathew McBride <matt@traverse.com.au>
+Date: Mon, 7 Aug 2017 10:19:48 +1000
+Subject: [PATCH] Recognize when an RGMII Link is set as fixed (in the device
+ tree) and set up the MAC accordingly
+
+---
+ drivers/net/ethernet/freescale/sdk_dpaa/mac.c | 1 +
+ .../ethernet/freescale/sdk_fman/Peripherals/FM/MAC/memac.c | 13 +++++++++++++
+ 2 files changed, 14 insertions(+)
+
+--- a/drivers/net/ethernet/freescale/sdk_dpaa/mac.c
++++ b/drivers/net/ethernet/freescale/sdk_dpaa/mac.c
+@@ -386,6 +386,7 @@ static int __cold mac_probe(struct platf
+ mac_dev->fixed_link->duplex = phy->duplex;
+ mac_dev->fixed_link->pause = phy->pause;
+ mac_dev->fixed_link->asym_pause = phy->asym_pause;
++ printk(KERN_INFO "Setting up fixed link, speed %d duplex %d\n", mac_dev->fixed_link->speed, mac_dev->fixed_link->duplex);
+ }
+
+ _errno = mac_dev->init(mac_dev);
+--- a/drivers/net/ethernet/freescale/sdk_fman/Peripherals/FM/MAC/memac.c
++++ b/drivers/net/ethernet/freescale/sdk_fman/Peripherals/FM/MAC/memac.c
+@@ -36,6 +36,8 @@
+
+ @Description FM mEMAC driver
+ *//***************************************************************************/
++#include <../../../../sdk_dpaa/mac.h>
++#include <linux/phy_fixed.h>
+
+ #include "std_ext.h"
+ #include "string_ext.h"
+@@ -48,6 +50,8 @@
+ #include "memac.h"
+
+
++static t_Error MemacAdjustLink(t_Handle h_Memac, e_EnetSpeed speed, bool fullDuplex);
++
+ /*****************************************************************************/
+ /* Internal routines */
+ /*****************************************************************************/
+@@ -276,11 +280,20 @@ static t_Error MemacEnable(t_Handle h_Me
+ {
+ t_Memac *p_Memac = (t_Memac *)h_Memac;
+
++ struct mac_device *mac_dev = (struct mac_device *)p_Memac->h_App;
++
+ SANITY_CHECK_RETURN_ERROR(p_Memac, E_INVALID_HANDLE);
+ SANITY_CHECK_RETURN_ERROR(!p_Memac->p_MemacDriverParam, E_INVALID_STATE);
+
+ fman_memac_enable(p_Memac->p_MemMap, (mode & e_COMM_MODE_RX), (mode & e_COMM_MODE_TX));
+
++ if (ENET_INTERFACE_FROM_MODE(p_Memac->enetMode) == e_ENET_IF_RGMII) {
++ if (mac_dev->fixed_link) {
++ printk("This is a fixed-link, forcing speed %d duplex %d\n",mac_dev->fixed_link->speed,mac_dev->fixed_link->duplex);
++ MemacAdjustLink(h_Memac,mac_dev->fixed_link->speed,mac_dev->fixed_link->duplex);
++ }
++ }
++
+ return E_OK;
+ }
+