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Add support for the Qualcomm IPQ50xx in the QCA NSS dataplane driver. The QCA implementation uses depracated DMA api calls and a downstream SCM call, so convert to proper Linux DMA and SCM api calls. In addition, add fixed-link support to support SGMII which is used to connect the internal IPQ50xx switch to an external switch (ex. QCA8337) Co-developed-by: Ziyang Huang <hzyitc@outlook.com> Signed-off-by: Ziyang Huang <hzyitc@outlook.com> Signed-off-by: George Moussalem <george.moussalem@outlook.com> Link: https://github.com/openwrt/openwrt/pull/17182 Signed-off-by: Robert Marko <robimarko@gmail.com>
50 lines
1.6 KiB
Diff
50 lines
1.6 KiB
Diff
From 309a1a330ccaa103a7648e944d97a0032116b338 Mon Sep 17 00:00:00 2001
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From: Ziyang Huang <hzyitc@outlook.com>
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Date: Mon, 22 Apr 2024 21:50:39 +0800
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Subject: [PATCH] nss_dp_main: support fixed-link
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Add support for "fixed link" to support ethernet MACs which are not
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connected to an MDIO managed PHY. For example, IPQ5018 has two internal
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MACs, one connected to a GE PHY and the other connected to a Uniphy to
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support connections to an external switch over a fixed link. As such,
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check for a fixed link in absence of a phy-handle and return an error
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when no phy-handle and fixed link is found.
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Signed-off-by: Ziyang Huang <hzyitc@outlook.com>
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Signed-off-by: George Moussalem <george.moussalem@outlook.com>
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---
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nss_dp_main.c | 15 ++++++++++++---
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1 file changed, 12 insertions(+), 3 deletions(-)
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diff --git a/nss_dp_main.c b/nss_dp_main.c
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index 9a09edd5..204063bf 100644
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--- a/nss_dp_main.c
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+++ b/nss_dp_main.c
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@@ -619,11 +619,20 @@ static int32_t nss_dp_of_get_pdata(struct device_node *np,
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}
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dp_priv->phy_node = of_parse_phandle(np, "phy-handle", 0);
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- if (!dp_priv->phy_node) {
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- pr_err("%s: error parsing phy-handle\n", np->name);
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- return -EFAULT;
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+ if(!dp_priv->phy_node) {
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+ if(of_phy_is_fixed_link(np)) {
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+ int ret = of_phy_register_fixed_link(np);
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+ if(ret < 0) {
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+ pr_err("%s: fail to register fixed-link: %d\n", np->name, ret);
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+ return -EFAULT;
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+ }
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+ }
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+ dp_priv->phy_node = of_node_get(np);
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}
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+ if(!dp_priv->phy_node)
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+ pr_err("%s: no phy-handle or fixed-link found\n", np->name);
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+
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if (of_property_read_u32(np, "qcom,mactype", &hal_pdata->mactype)) {
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pr_err("%s: error reading mactype\n", np->name);
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return -EFAULT;
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--
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2.40.1
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