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lantiq: kernel 4.14: autoselect matching vr9 rev firmware

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Add a custom xrx200 ethernet phy compatible to load the firmware matching
the vr9 revision without specifing an expected revision.

We have quite a few boards in the tree were later produced ones are using
a more recent vr9. It is impossible to distinguish which revision of the
vr9 is used without opening the case and removing a heatsink for some of
them.

Signed-off-by: Mathias Kresin <dev@kresin.me>
This commit is contained in:
Mathias Kresin
2018-01-19 20:19:06 +01:00
parent a48b4ae38b
commit 2368f7cb78
1 changed files with 45 additions and 0 deletions
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45
target/linux/lantiq/patches-4.14/0024-MIPS-lantiq-autoselect-soc-rev-matching-fw.patch Normal file
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@@ -0,0 +1,45 @@
From ae0c287060749dc72c866484d12bd3cade8c517d Mon Sep 17 00:00:00 2001
From: Mathias Kresin <dev@kresin.me>
Date: Fri, 19 Jan 2018 20:19:06 +0100
Subject: [PATCH] MIPS: lantiq: autoselect matching vr9 rev gphy firmware
Add a custom xrx200 ethernet phy compatible to load the firmware matching
the vr9 revision without specifing an expected revision.
We have quite a few boards in the tree were later produced ones are using
a more recent vr9. It is impossible to distinguish which revision of the
vr9 is used without opening the case and removing a heatsink for some of
them.
Signed-off-by: Mathias Kresin <dev@kresin.me>
---
drivers/soc/lantiq/gphy.c | 11 +++++++++++
1 file changed, 11 insertions(+)
--- a/drivers/soc/lantiq/gphy.c
+++ b/drivers/soc/lantiq/gphy.c
@@ -56,6 +56,7 @@ static const struct xway_gphy_match_data
};
static const struct of_device_id xway_gphy_match[] = {
+ { .compatible = "lantiq,xrx200-gphy", .data = NULL },
{ .compatible = "lantiq,xrx200a1x-gphy", .data = &xrx200a1x_gphy_data },
{ .compatible = "lantiq,xrx200a2x-gphy", .data = &xrx200a2x_gphy_data },
{ .compatible = "lantiq,xrx300-gphy", .data = &xrx300_gphy_data },
@@ -130,6 +131,16 @@ static int xway_gphy_of_probe(struct pla
gphy_fw_name_cfg = of_device_get_match_data(dev);
+ if (of_device_is_compatible(pdev->dev.of_node, "lantiq,xrx200-gphy"))
+ switch (ltq_soc_type()) {
+ case SOC_TYPE_VR9:
+ gphy_fw_name_cfg = &xrx200a1x_gphy_data;
+ break;
+ case SOC_TYPE_VR9_2:
+ gphy_fw_name_cfg = &xrx200a2x_gphy_data;
+ break;
+ }
+
priv->gphy_clk_gate = devm_clk_get(dev, NULL);
if (IS_ERR(priv->gphy_clk_gate)) {
dev_err(dev, "Failed to lookup gate clock\n");