[openwrt/openwrt] qualcommax: ipq50xx: fix uniphy soft reset issue

[LEDE Commits]

robimarko pushed a commit to openwrt/openwrt.git, branch main:
https://git.openwrt.org/480268596fac7f9e4b8e9b544ac5aecff5abca2d

commit 480268596fac7f9e4b8e9b544ac5aecff5abca2d
Author: George Moussalem <george.moussalem at outlook.com>
AuthorDate: Fri May 30 09:19:29 2025 +0400

    qualcommax: ipq50xx: fix uniphy soft reset issue
    
    The resets in the GCC of the uniphy found in the IPQ5018 SoC are
    incorrect which broke the ability to shift between 1G and 2.5G link
    speeds. So let's correct the resets based on below two downstream
    commits.
    
    In a seperate and prequisite PR to the QCA-SSDK repo, logic has been
    implemented to select the right reset based on the link setup so fixed
    link scenarios don't break.
    
    Signed-off-by: George Moussalem <george.moussalem at outlook.com>
    Link: https://github.com/openwrt/openwrt/pull/18774
    Signed-off-by: Robert Marko <robimarko at gmail.com>
---
 ...m-gcc-ipq5018-fix-uniphy-soft-reset-issue.patch | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/target/linux/qualcommax/patches-6.12/0723-clk-qcom-gcc-ipq5018-fix-uniphy-soft-reset-issue.patch b/target/linux/qualcommax/patches-6.12/0723-clk-qcom-gcc-ipq5018-fix-uniphy-soft-reset-issue.patch
new file mode 100644
index 0000000000..f4d7742722
--- /dev/null
+++ b/target/linux/qualcommax/patches-6.12/0723-clk-qcom-gcc-ipq5018-fix-uniphy-soft-reset-issue.patch
@@ -0,0 +1,22 @@
+From: George Moussalem <george.moussalem at outlook.com>
+Date: Fri, 30 May 2025 09:12:23 +0400
+Subject: [PATCH] clk: qcom: gcc-ipq5018: fix UNIPHY soft reset issue
+
+The SOFT reset is supposed to trigger a resets across the SYS, RX, and
+TX lines of the IPQ5018 UNIPHY. So let's set the bitmask of the reset
+definition accordingly in the GCC as per the downstream driver.
+
+Link: https://git.codelinaro.org/clo/qsdk/oss/kernel/linux-ipq-5.4/-/commit/036bdc62aca561e8ff94a29c447fc400de2b7304
+
+Signed-off-by: George Moussalem <george.moussalem at outlook.com>
+--- a/drivers/clk/qcom/gcc-ipq5018.c
++++ b/drivers/clk/qcom/gcc-ipq5018.c
+@@ -3647,7 +3647,7 @@ static const struct qcom_reset_map gcc_i
+ 	[GCC_UNIPHY_SYS_ARES] = { 0x56104, 1 },
+ 	[GCC_UNIPHY_RX_ARES] = { 0x56104, 4 },
+ 	[GCC_UNIPHY_TX_ARES] = { 0x56104, 5 },
+-	[GCC_UNIPHY_SOFT_RESET] = {0x56104, 0 },
++	[GCC_UNIPHY_SOFT_RESET] = {0x56104, .bitmask = 0x32 },
+ 	[GCC_USB0_BCR] = { 0x3e070, 0 },
+ 	[GCC_USB0_PHY_BCR] = { 0x3e034, 0 },
+ 	[GCC_WCSS_BCR] = { 0x18000, 0 },