mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-25 16:31:13 +00:00
81 lines
2.9 KiB
Diff
81 lines
2.9 KiB
Diff
|
From dacdae142ffd909ed6718adb05af74ff800da668 Mon Sep 17 00:00:00 2001
|
||
|
|
From: Chunfeng Yun <chunfeng.yun@mediatek.com>
|
||
|
|
Date: Thu, 7 Dec 2017 19:53:34 +0800
|
||
|
|
Subject: [PATCH 177/224] phy: phy-mtk-tphy: use auto instead of force to
|
||
|
|
bypass utmi signals
|
||
|
|
|
||
|
|
When system is running, if usb2 phy is forced to bypass utmi signals,
|
||
|
|
all PLL will be turned off, and it can't detect device connection
|
||
|
|
anymore, so replace force mode with auto mode which can bypass utmi
|
||
|
|
signals automatically if no device attached for normal flow.
|
||
|
|
But keep the force mode to fix RX sensitivity degradation issue.
|
||
|
|
|
||
|
|
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
|
||
|
|
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
|
||
|
|
---
|
||
|
|
drivers/phy/mediatek/phy-mtk-tphy.c | 19 +++++++------------
|
||
|
|
1 file changed, 7 insertions(+), 12 deletions(-)
|
||
|
|
|
||
|
|
diff --git a/drivers/phy/mediatek/phy-mtk-tphy.c b/drivers/phy/mediatek/phy-mtk-tphy.c
|
||
|
|
index 402385f2562a..54cc44b2d289 100644
|
||
|
|
--- a/drivers/phy/mediatek/phy-mtk-tphy.c
|
||
|
|
+++ b/drivers/phy/mediatek/phy-mtk-tphy.c
|
||
|
|
@@ -440,9 +440,9 @@ static void u2_phy_instance_init(struct mtk_tphy *tphy,
|
||
|
|
u32 index = instance->index;
|
||
|
|
u32 tmp;
|
||
|
|
|
||
|
|
- /* switch to USB function. (system register, force ip into usb mode) */
|
||
|
|
+ /* switch to USB function, and enable usb pll */
|
||
|
|
tmp = readl(com + U3P_U2PHYDTM0);
|
||
|
|
- tmp &= ~P2C_FORCE_UART_EN;
|
||
|
|
+ tmp &= ~(P2C_FORCE_UART_EN | P2C_FORCE_SUSPENDM);
|
||
|
|
tmp |= P2C_RG_XCVRSEL_VAL(1) | P2C_RG_DATAIN_VAL(0);
|
||
|
|
writel(tmp, com + U3P_U2PHYDTM0);
|
||
|
|
|
||
|
|
@@ -502,10 +502,8 @@ static void u2_phy_instance_power_on(struct mtk_tphy *tphy,
|
||
|
|
u32 index = instance->index;
|
||
|
|
u32 tmp;
|
||
|
|
|
||
|
|
- /* (force_suspendm=0) (let suspendm=1, enable usb 480MHz pll) */
|
||
|
|
tmp = readl(com + U3P_U2PHYDTM0);
|
||
|
|
- tmp &= ~(P2C_FORCE_SUSPENDM | P2C_RG_XCVRSEL);
|
||
|
|
- tmp &= ~(P2C_RG_DATAIN | P2C_DTM0_PART_MASK);
|
||
|
|
+ tmp &= ~(P2C_RG_XCVRSEL | P2C_RG_DATAIN | P2C_DTM0_PART_MASK);
|
||
|
|
writel(tmp, com + U3P_U2PHYDTM0);
|
||
|
|
|
||
|
|
/* OTG Enable */
|
||
|
|
@@ -540,7 +538,6 @@ static void u2_phy_instance_power_off(struct mtk_tphy *tphy,
|
||
|
|
|
||
|
|
tmp = readl(com + U3P_U2PHYDTM0);
|
||
|
|
tmp &= ~(P2C_RG_XCVRSEL | P2C_RG_DATAIN);
|
||
|
|
- tmp |= P2C_FORCE_SUSPENDM;
|
||
|
|
writel(tmp, com + U3P_U2PHYDTM0);
|
||
|
|
|
||
|
|
/* OTG Disable */
|
||
|
|
@@ -548,18 +545,16 @@ static void u2_phy_instance_power_off(struct mtk_tphy *tphy,
|
||
|
|
tmp &= ~PA6_RG_U2_OTG_VBUSCMP_EN;
|
||
|
|
writel(tmp, com + U3P_USBPHYACR6);
|
||
|
|
|
||
|
|
- /* let suspendm=0, set utmi into analog power down */
|
||
|
|
- tmp = readl(com + U3P_U2PHYDTM0);
|
||
|
|
- tmp &= ~P2C_RG_SUSPENDM;
|
||
|
|
- writel(tmp, com + U3P_U2PHYDTM0);
|
||
|
|
- udelay(1);
|
||
|
|
-
|
||
|
|
tmp = readl(com + U3P_U2PHYDTM1);
|
||
|
|
tmp &= ~(P2C_RG_VBUSVALID | P2C_RG_AVALID);
|
||
|
|
tmp |= P2C_RG_SESSEND;
|
||
|
|
writel(tmp, com + U3P_U2PHYDTM1);
|
||
|
|
|
||
|
|
if (tphy->pdata->avoid_rx_sen_degradation && index) {
|
||
|
|
+ tmp = readl(com + U3P_U2PHYDTM0);
|
||
|
|
+ tmp &= ~(P2C_RG_SUSPENDM | P2C_FORCE_SUSPENDM);
|
||
|
|
+ writel(tmp, com + U3P_U2PHYDTM0);
|
||
|
|
+
|
||
|
|
tmp = readl(com + U3D_U2PHYDCR0);
|
||
|
|
tmp &= ~P2C_RG_SIF_U2PLL_FORCE_ON;
|
||
|
|
writel(tmp, com + U3D_U2PHYDCR0);
|
||
|
|
--
|
||
|
|
2.11.0
|
||
|
|
|