openwrt/target/linux/airoha/patches-6.6/024-v6.12-phy-airoha-adjust-initialization-delay-in-airoha_pci.patch
Christian Marangi 9131cb44ff
airoha: Introduce EN7581 SoC support
Introduce EN7581 SoC support with currently rfb board supported.

This is a new 64bit SoC from Airoha that is currently almost fully
supported upstream with only the DTS missing. Setting source-only
waiting for the full upstream support to be completed.

Link: https://github.com/openwrt/openwrt/pull/16730
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
2024-10-20 23:24:08 +02:00

41 lines
1.4 KiB
Diff

From 7f7315db3d262298ab33d198d3f0b09cabfa7b6b Mon Sep 17 00:00:00 2001
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Tue, 6 Aug 2024 17:55:48 +0200
Subject: [PATCH] phy: airoha: adjust initialization delay in
airoha_pcie_phy_init()
Align phy-pcie initialization delay to the vendor sdk in
airoha_pcie_phy_init routine and allow the hw to complete required
configuration before proceeding
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/8af6f27857619f1e0dd227f08b8584ae8fb22fb2.1722959625.git.lorenzo@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
---
drivers/phy/phy-airoha-pcie.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
--- a/drivers/phy/phy-airoha-pcie.c
+++ b/drivers/phy/phy-airoha-pcie.c
@@ -18,6 +18,9 @@
#define LEQ_LEN_CTRL_MAX_VAL 7
#define FREQ_LOCK_MAX_ATTEMPT 10
+/* PCIe-PHY initialization time in ms needed by the hw to complete */
+#define PHY_HW_INIT_TIME_MS 30
+
enum airoha_pcie_port_gen {
PCIE_PORT_GEN1 = 1,
PCIE_PORT_GEN2,
@@ -1181,7 +1184,8 @@ static int airoha_pcie_phy_init(struct p
airoha_phy_pma1_set_bits(pcie_phy, REG_PCIE_PMA_SS_DA_XPON_PWDB0,
PCIE_DA_XPON_CDR_PR_PWDB);
- usleep_range(100, 200);
+ /* Wait for the PCIe PHY to complete initialization before returning */
+ msleep(PHY_HW_INIT_TIME_MS);
return 0;
}