mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-22 15:02:32 +00:00
cddd459140
Add patches for linux-5.4. The patches are from NXP LSDK-20.04 release which was tagged LSDK-20.04-V5.4. https://source.codeaurora.org/external/qoriq/qoriq-components/linux/ For boards LS1021A-IOT, and Traverse-LS1043 which are not involved in LSDK, port the dts patches from 4.14. The patches are sorted into the following categories: 301-arch-xxxx 302-dts-xxxx 303-core-xxxx 701-net-xxxx 801-audio-xxxx 802-can-xxxx 803-clock-xxxx 804-crypto-xxxx 805-display-xxxx 806-dma-xxxx 807-gpio-xxxx 808-i2c-xxxx 809-jailhouse-xxxx 810-keys-xxxx 811-kvm-xxxx 812-pcie-xxxx 813-pm-xxxx 814-qe-xxxx 815-sata-xxxx 816-sdhc-xxxx 817-spi-xxxx 818-thermal-xxxx 819-uart-xxxx 820-usb-xxxx 821-vfio-xxxx Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
86 lines
4.0 KiB
Diff
86 lines
4.0 KiB
Diff
From 79eacb8b197f7459a75c7d3ec33ceef88475d5a1 Mon Sep 17 00:00:00 2001
|
|
From: Vladimir Oltean <vladimir.oltean@nxp.com>
|
|
Date: Fri, 4 May 2018 19:23:59 +0300
|
|
Subject: [PATCH] memac_init_phy: RGMII fixed-link: pass adjust_link callback
|
|
to of_phy_connect
|
|
|
|
* The mEMAC configuration for RGMII is held in the IF_MODE register
|
|
* In the driver, IF_MODE is configured in 2 places (both in fman_memac.c):
|
|
- fman_memac_init: sets the IF_MODE bit macro IF_MODE_RGMII_AUTO
|
|
(this translates to setting ENA = 1 - Enable automatic speed selection
|
|
- RGMII PHY in-band status information is used to select the speed
|
|
of operation).
|
|
- fman_memac_adjust_link: brings the RGMII port in ENA = 0 mode
|
|
(link speed not determined autonomously by the MAC, but set according
|
|
to SSP).
|
|
* The issue with the current code is that in the case of RGMII fixed-link,
|
|
the of_phy_attach function is being called, instead of of_phy_connect
|
|
with a callback that calls fman_memac_adjust_link.
|
|
* For this reason, the RGMII port is left in a state with ENA = 1. In
|
|
most (if not all) RGMII fixed-link setups, the link partner will not
|
|
send any in-bank link speed information that is expected by the mEMAC.
|
|
* The effect is that the link speed setting will probably not be correct
|
|
(and will definitely not be according to the "fixed-link" property in
|
|
the DTS).
|
|
* The adjust_link callback seems to be called by the PHY state machine,
|
|
even for fixed links, exactly once: on "link up". Therefore, this
|
|
patch ensures that on link up, RGMII fixed links are configured to the
|
|
link speed that is set in the DTS, and not left with IF_MODE[ENA] = 1.
|
|
|
|
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
|
|
---
|
|
drivers/net/ethernet/freescale/sdk_dpaa/mac-api.c | 38 ++++++++++++++++++-----
|
|
1 file changed, 31 insertions(+), 7 deletions(-)
|
|
|
|
--- a/drivers/net/ethernet/freescale/sdk_dpaa/mac-api.c
|
|
+++ b/drivers/net/ethernet/freescale/sdk_dpaa/mac-api.c
|
|
@@ -502,17 +502,41 @@ static int memac_init_phy(struct net_dev
|
|
struct mac_device *mac_dev)
|
|
{
|
|
struct phy_device *phy_dev;
|
|
+ void (*adjust_link_handler)(struct net_device *);
|
|
|
|
if ((macdev2enetinterface(mac_dev) == e_ENET_MODE_XGMII_10000) ||
|
|
- (macdev2enetinterface(mac_dev) == e_ENET_MODE_SGMII_2500) ||
|
|
- of_phy_is_fixed_link(mac_dev->phy_node)) {
|
|
- phy_dev = of_phy_connect(net_dev, mac_dev->phy_node,
|
|
- &adjust_link_void, 0,
|
|
- mac_dev->phy_if);
|
|
+ (macdev2enetinterface(mac_dev) == e_ENET_MODE_SGMII_2500)) {
|
|
+ /* Pass a void link state handler to the PHY state machine
|
|
+ * for XGMII (10G) and SGMII 2.5G, as the hardware does not
|
|
+ * permit dynamic link speed adjustments. */
|
|
+ adjust_link_handler = adjust_link_void;
|
|
+ } else if (macdev2enetinterface(mac_dev) & e_ENET_IF_RGMII) {
|
|
+ /* Regular RGMII ports connected to a PHY, as well as
|
|
+ * ports that are marked as "fixed-link" in the DTS,
|
|
+ * will have the adjust_link callback. This calls
|
|
+ * fman_memac_adjust_link in order to configure the
|
|
+ * IF_MODE register, which is needed in both cases.
|
|
+ */
|
|
+ adjust_link_handler = adjust_link;
|
|
+ } else if (of_phy_is_fixed_link(mac_dev->phy_node)) {
|
|
+ /* Pass a void link state handler for fixed-link
|
|
+ * interfaces that are not RGMII. Only RGMII has been
|
|
+ * tested and confirmed to work with fixed-link. Other
|
|
+ * MII interfaces may need further work.
|
|
+ * TODO: Change this as needed.
|
|
+ */
|
|
+ adjust_link_handler = adjust_link_void;
|
|
} else {
|
|
- phy_dev = of_phy_connect(net_dev, mac_dev->phy_node,
|
|
- &adjust_link, 0, mac_dev->phy_if);
|
|
+ /* MII, RMII, SMII, GMII, SGMII, BASEX ports,
|
|
+ * that are NOT fixed-link.
|
|
+ * TODO: May not be needed for interfaces that
|
|
+ * pass through the SerDes block (*SGMII, XFI).
|
|
+ */
|
|
+ adjust_link_handler = adjust_link;
|
|
}
|
|
+ phy_dev = of_phy_connect(net_dev, mac_dev->phy_node,
|
|
+ adjust_link_handler, 0,
|
|
+ mac_dev->phy_if);
|
|
|
|
if (unlikely(phy_dev == NULL) || IS_ERR(phy_dev)) {
|
|
netdev_err(net_dev, "Could not connect to PHY %s\n",
|