mirror of
https://github.com/LibreELEC/LibreELEC.tv.git
synced 2025-07-28 13:16:41 +00:00
Allwinner: Extract USB3 patch and move it to common patch folder
This commit is contained in:
parent
d44512f065
commit
ba4d163046
@ -1040,259 +1040,6 @@ index 58a6635c909e3..f795362f5b77e 100644
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&r_i2c {
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&r_i2c {
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From d996492e1f700a9f0a104c50b126a022dee77dd6 Mon Sep 17 00:00:00 2001
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From: Icenowy Zheng <icenowy@aosc.io>
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Date: Mon, 25 Dec 2017 12:04:02 +0800
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Subject: [PATCH 20/34] phy: allwinner: add phy driver for USB3 PHY on
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Allwinner H6 SoC
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Allwinner H6 SoC contains a USB3 PHY (with USB2 DP/DM lines also
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controlled).
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Add a driver for it.
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The register operations in this driver is mainly extracted from the BSP
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USB3 driver.
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Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
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Reviewed-by: Chen-Yu Tsai <wens@csie.org>
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---
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drivers/phy/allwinner/Kconfig | 12 ++
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drivers/phy/allwinner/Makefile | 1 +
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drivers/phy/allwinner/phy-sun50i-usb3.c | 194 ++++++++++++++++++++++++
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3 files changed, 207 insertions(+)
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create mode 100644 drivers/phy/allwinner/phy-sun50i-usb3.c
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diff --git a/drivers/phy/allwinner/Kconfig b/drivers/phy/allwinner/Kconfig
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index fb1204bcc4548..2c363db177f20 100644
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--- a/drivers/phy/allwinner/Kconfig
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+++ b/drivers/phy/allwinner/Kconfig
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@@ -41,3 +41,15 @@ config PHY_SUN9I_USB
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sun9i SoCs.
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This driver controls each individual USB 2 host PHY.
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+
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+config PHY_SUN50I_USB3
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+ tristate "Allwinner sun50i SoC USB3 PHY driver"
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+ depends on ARCH_SUNXI && HAS_IOMEM && OF
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+ depends on RESET_CONTROLLER
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+ select USB_COMMON
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+ select GENERIC_PHY
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+ help
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+ Enable this to support the USB3.0-capable transceiver that is
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+ part of some Allwinner sun50i SoCs.
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+
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+ This driver controls each individual USB 2+3 host PHY combo.
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diff --git a/drivers/phy/allwinner/Makefile b/drivers/phy/allwinner/Makefile
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index 7d0053efbfaa6..59575a895779b 100644
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--- a/drivers/phy/allwinner/Makefile
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+++ b/drivers/phy/allwinner/Makefile
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@@ -1,3 +1,4 @@
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obj-$(CONFIG_PHY_SUN4I_USB) += phy-sun4i-usb.o
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obj-$(CONFIG_PHY_SUN6I_MIPI_DPHY) += phy-sun6i-mipi-dphy.o
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obj-$(CONFIG_PHY_SUN9I_USB) += phy-sun9i-usb.o
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+obj-$(CONFIG_PHY_SUN50I_USB3) += phy-sun50i-usb3.o
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diff --git a/drivers/phy/allwinner/phy-sun50i-usb3.c b/drivers/phy/allwinner/phy-sun50i-usb3.c
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new file mode 100644
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index 0000000000000..226c99c2d664c
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--- /dev/null
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+++ b/drivers/phy/allwinner/phy-sun50i-usb3.c
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@@ -0,0 +1,194 @@
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+// SPDX-License-Identifier: GPL-2.0+
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+/*
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+ * Allwinner sun50i(H6) USB 3.0 phy driver
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+ *
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+ * Copyright (C) 2017 Icenowy Zheng <icenowy@aosc.io>
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+ *
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+ * Based on phy-sun9i-usb.c, which is:
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+ *
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+ * Copyright (C) 2014-2015 Chen-Yu Tsai <wens@csie.org>
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+ *
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+ * Based on code from Allwinner BSP, which is:
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+ *
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+ * Copyright (c) 2010-2015 Allwinner Technology Co., Ltd.
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+ */
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+
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+#include <linux/clk.h>
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+#include <linux/err.h>
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+#include <linux/io.h>
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+#include <linux/module.h>
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+#include <linux/phy/phy.h>
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+#include <linux/usb/of.h>
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+#include <linux/platform_device.h>
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+#include <linux/reset.h>
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+
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+/* Interface Status and Control Registers */
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+#define SUNXI_ISCR 0x00
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+#define SUNXI_PIPE_CLOCK_CONTROL 0x14
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+#define SUNXI_PHY_TUNE_LOW 0x18
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+#define SUNXI_PHY_TUNE_HIGH 0x1c
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+#define SUNXI_PHY_EXTERNAL_CONTROL 0x20
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+
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+/* USB2.0 Interface Status and Control Register */
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+#define SUNXI_ISCR_FORCE_VBUS (3 << 12)
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+
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+/* PIPE Clock Control Register */
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+#define SUNXI_PCC_PIPE_CLK_OPEN (1 << 6)
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+
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+/* PHY External Control Register */
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+#define SUNXI_PEC_EXTERN_VBUS (3 << 1)
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+#define SUNXI_PEC_SSC_EN (1 << 24)
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+#define SUNXI_PEC_REF_SSP_EN (1 << 26)
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+
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+/* PHY Tune High Register */
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+#define SUNXI_TX_DEEMPH_3P5DB(n) ((n) << 19)
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+#define SUNXI_TX_DEEMPH_3P5DB_MASK GENMASK(24, 19)
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+#define SUNXI_TX_DEEMPH_6DB(n) ((n) << 13)
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+#define SUNXI_TX_DEEMPH_6GB_MASK GENMASK(18, 13)
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+#define SUNXI_TX_SWING_FULL(n) ((n) << 6)
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+#define SUNXI_TX_SWING_FULL_MASK GENMASK(12, 6)
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+#define SUNXI_LOS_BIAS(n) ((n) << 3)
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+#define SUNXI_LOS_BIAS_MASK GENMASK(5, 3)
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+#define SUNXI_TXVBOOSTLVL(n) ((n) << 0)
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+#define SUNXI_TXVBOOSTLVL_MASK GENMASK(0, 2)
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+
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+struct sun50i_usb3_phy {
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+ struct phy *phy;
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+ void __iomem *regs;
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+ struct reset_control *reset;
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+ struct clk *clk;
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+};
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+
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+static void sun50i_usb3_phy_open(struct sun50i_usb3_phy *phy)
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+{
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+ u32 val;
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+
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+ val = readl(phy->regs + SUNXI_PHY_EXTERNAL_CONTROL);
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+ val |= SUNXI_PEC_EXTERN_VBUS;
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+ val |= SUNXI_PEC_SSC_EN | SUNXI_PEC_REF_SSP_EN;
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+ writel(val, phy->regs + SUNXI_PHY_EXTERNAL_CONTROL);
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+
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+ val = readl(phy->regs + SUNXI_PIPE_CLOCK_CONTROL);
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+ val |= SUNXI_PCC_PIPE_CLK_OPEN;
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+ writel(val, phy->regs + SUNXI_PIPE_CLOCK_CONTROL);
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+
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+ val = readl(phy->regs + SUNXI_ISCR);
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+ val |= SUNXI_ISCR_FORCE_VBUS;
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+ writel(val, phy->regs + SUNXI_ISCR);
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+
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+ /*
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+ * All the magic numbers written to the PHY_TUNE_{LOW_HIGH}
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+ * registers are directly taken from the BSP USB3 driver from
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+ * Allwiner.
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+ */
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+ writel(0x0047fc87, phy->regs + SUNXI_PHY_TUNE_LOW);
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+
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+ val = readl(phy->regs + SUNXI_PHY_TUNE_HIGH);
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+ val &= ~(SUNXI_TXVBOOSTLVL_MASK | SUNXI_LOS_BIAS_MASK |
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+ SUNXI_TX_SWING_FULL_MASK | SUNXI_TX_DEEMPH_6GB_MASK |
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+ SUNXI_TX_DEEMPH_3P5DB_MASK);
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+ val |= SUNXI_TXVBOOSTLVL(0x7);
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+ val |= SUNXI_LOS_BIAS(0x7);
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+ val |= SUNXI_TX_SWING_FULL(0x55);
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+ val |= SUNXI_TX_DEEMPH_6DB(0x20);
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+ val |= SUNXI_TX_DEEMPH_3P5DB(0x15);
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+ writel(val, phy->regs + SUNXI_PHY_TUNE_HIGH);
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+}
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+
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+static int sun50i_usb3_phy_init(struct phy *_phy)
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+{
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+ struct sun50i_usb3_phy *phy = phy_get_drvdata(_phy);
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+ int ret;
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+
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+ ret = clk_prepare_enable(phy->clk);
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+ if (ret)
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+ goto err_clk;
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+
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+ ret = reset_control_deassert(phy->reset);
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+ if (ret)
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+ goto err_reset;
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+
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+ sun50i_usb3_phy_open(phy);
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+ return 0;
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+
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+err_reset:
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+ clk_disable_unprepare(phy->clk);
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+
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+err_clk:
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+ return ret;
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+}
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+
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+static int sun50i_usb3_phy_exit(struct phy *_phy)
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+{
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+ struct sun50i_usb3_phy *phy = phy_get_drvdata(_phy);
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+
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+ reset_control_assert(phy->reset);
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+ clk_disable_unprepare(phy->clk);
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+
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+ return 0;
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+}
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+
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+static const struct phy_ops sun50i_usb3_phy_ops = {
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+ .init = sun50i_usb3_phy_init,
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+ .exit = sun50i_usb3_phy_exit,
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+ .owner = THIS_MODULE,
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+};
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+
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+static int sun50i_usb3_phy_probe(struct platform_device *pdev)
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+{
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+ struct sun50i_usb3_phy *phy;
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+ struct device *dev = &pdev->dev;
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+ struct phy_provider *phy_provider;
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+ struct resource *res;
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+
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+ phy = devm_kzalloc(dev, sizeof(*phy), GFP_KERNEL);
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+ if (!phy)
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+ return -ENOMEM;
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+
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+ phy->clk = devm_clk_get(dev, NULL);
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+ if (IS_ERR(phy->clk)) {
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+ dev_err(dev, "failed to get phy clock\n");
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+ return PTR_ERR(phy->clk);
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+ }
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+
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+ phy->reset = devm_reset_control_get(dev, NULL);
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+ if (IS_ERR(phy->reset)) {
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+ dev_err(dev, "failed to get reset control\n");
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+ return PTR_ERR(phy->reset);
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+ }
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+
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+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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+ phy->regs = devm_ioremap_resource(dev, res);
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+ if (IS_ERR(phy->regs))
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+ return PTR_ERR(phy->regs);
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+
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+ phy->phy = devm_phy_create(dev, NULL, &sun50i_usb3_phy_ops);
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+ if (IS_ERR(phy->phy)) {
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+ dev_err(dev, "failed to create PHY\n");
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+ return PTR_ERR(phy->phy);
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+ }
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+
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+ phy_set_drvdata(phy->phy, phy);
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+ phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate);
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+
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+ return PTR_ERR_OR_ZERO(phy_provider);
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+}
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+
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+static const struct of_device_id sun50i_usb3_phy_of_match[] = {
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+ { .compatible = "allwinner,sun50i-h6-usb3-phy" },
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+ { },
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+};
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+MODULE_DEVICE_TABLE(of, sun50i_usb3_phy_of_match);
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+
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+static struct platform_driver sun50i_usb3_phy_driver = {
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+ .probe = sun50i_usb3_phy_probe,
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+ .driver = {
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+ .of_match_table = sun50i_usb3_phy_of_match,
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+ .name = "sun50i-usb3-phy",
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+ }
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+};
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+module_platform_driver(sun50i_usb3_phy_driver);
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+
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+MODULE_DESCRIPTION("Allwinner sun50i USB 3.0 phy driver");
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+MODULE_AUTHOR("Icenowy Zheng <icenowy@aosc.io>");
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+MODULE_LICENSE("GPL");
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From 5fd2d3bd956cc875d07433454f18dcbc14e120d5 Mon Sep 17 00:00:00 2001
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From 5fd2d3bd956cc875d07433454f18dcbc14e120d5 Mon Sep 17 00:00:00 2001
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From: Ondrej Jirman <megous@megous.com>
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From: Ondrej Jirman <megous@megous.com>
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Date: Tue, 26 Mar 2019 15:14:14 +0100
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Date: Tue, 26 Mar 2019 15:14:14 +0100
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@ -1,6 +1,6 @@
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#
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#
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# Automatically generated file; DO NOT EDIT.
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# Automatically generated file; DO NOT EDIT.
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# Linux/arm 5.1.5 Kernel Configuration
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# Linux/arm 5.1.9 Kernel Configuration
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#
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#
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#
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#
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@ -4632,6 +4632,7 @@ CONFIG_GENERIC_PHY_MIPI_DPHY=y
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CONFIG_PHY_SUN4I_USB=y
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CONFIG_PHY_SUN4I_USB=y
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CONFIG_PHY_SUN6I_MIPI_DPHY=y
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CONFIG_PHY_SUN6I_MIPI_DPHY=y
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CONFIG_PHY_SUN9I_USB=y
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CONFIG_PHY_SUN9I_USB=y
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CONFIG_PHY_SUN50I_USB3=y
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# CONFIG_BCM_KONA_USB2_PHY is not set
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# CONFIG_BCM_KONA_USB2_PHY is not set
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# CONFIG_PHY_CADENCE_DP is not set
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# CONFIG_PHY_CADENCE_DP is not set
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# CONFIG_PHY_CADENCE_DPHY is not set
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# CONFIG_PHY_CADENCE_DPHY is not set
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252
projects/Allwinner/patches/linux/0012-H6-USB3.patch
Normal file
252
projects/Allwinner/patches/linux/0012-H6-USB3.patch
Normal file
@ -0,0 +1,252 @@
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From d996492e1f700a9f0a104c50b126a022dee77dd6 Mon Sep 17 00:00:00 2001
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|
From: Icenowy Zheng <icenowy@aosc.io>
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|
Date: Mon, 25 Dec 2017 12:04:02 +0800
|
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|
Subject: [PATCH 20/34] phy: allwinner: add phy driver for USB3 PHY on
|
||||||
|
Allwinner H6 SoC
|
||||||
|
|
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|
Allwinner H6 SoC contains a USB3 PHY (with USB2 DP/DM lines also
|
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|
controlled).
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|
|
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|
Add a driver for it.
|
||||||
|
|
||||||
|
The register operations in this driver is mainly extracted from the BSP
|
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|
USB3 driver.
|
||||||
|
|
||||||
|
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
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|
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
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|
---
|
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|
drivers/phy/allwinner/Kconfig | 12 ++
|
||||||
|
drivers/phy/allwinner/Makefile | 1 +
|
||||||
|
drivers/phy/allwinner/phy-sun50i-usb3.c | 194 ++++++++++++++++++++++++
|
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|
3 files changed, 207 insertions(+)
|
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|
create mode 100644 drivers/phy/allwinner/phy-sun50i-usb3.c
|
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|
|
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|
diff --git a/drivers/phy/allwinner/Kconfig b/drivers/phy/allwinner/Kconfig
|
||||||
|
index fb1204bcc4548..2c363db177f20 100644
|
||||||
|
--- a/drivers/phy/allwinner/Kconfig
|
||||||
|
+++ b/drivers/phy/allwinner/Kconfig
|
||||||
|
@@ -41,3 +41,15 @@ config PHY_SUN9I_USB
|
||||||
|
sun9i SoCs.
|
||||||
|
|
||||||
|
This driver controls each individual USB 2 host PHY.
|
||||||
|
+
|
||||||
|
+config PHY_SUN50I_USB3
|
||||||
|
+ tristate "Allwinner sun50i SoC USB3 PHY driver"
|
||||||
|
+ depends on ARCH_SUNXI && HAS_IOMEM && OF
|
||||||
|
+ depends on RESET_CONTROLLER
|
||||||
|
+ select USB_COMMON
|
||||||
|
+ select GENERIC_PHY
|
||||||
|
+ help
|
||||||
|
+ Enable this to support the USB3.0-capable transceiver that is
|
||||||
|
+ part of some Allwinner sun50i SoCs.
|
||||||
|
+
|
||||||
|
+ This driver controls each individual USB 2+3 host PHY combo.
|
||||||
|
diff --git a/drivers/phy/allwinner/Makefile b/drivers/phy/allwinner/Makefile
|
||||||
|
index 7d0053efbfaa6..59575a895779b 100644
|
||||||
|
--- a/drivers/phy/allwinner/Makefile
|
||||||
|
+++ b/drivers/phy/allwinner/Makefile
|
||||||
|
@@ -1,3 +1,4 @@
|
||||||
|
obj-$(CONFIG_PHY_SUN4I_USB) += phy-sun4i-usb.o
|
||||||
|
obj-$(CONFIG_PHY_SUN6I_MIPI_DPHY) += phy-sun6i-mipi-dphy.o
|
||||||
|
obj-$(CONFIG_PHY_SUN9I_USB) += phy-sun9i-usb.o
|
||||||
|
+obj-$(CONFIG_PHY_SUN50I_USB3) += phy-sun50i-usb3.o
|
||||||
|
diff --git a/drivers/phy/allwinner/phy-sun50i-usb3.c b/drivers/phy/allwinner/phy-sun50i-usb3.c
|
||||||
|
new file mode 100644
|
||||||
|
index 0000000000000..226c99c2d664c
|
||||||
|
--- /dev/null
|
||||||
|
+++ b/drivers/phy/allwinner/phy-sun50i-usb3.c
|
||||||
|
@@ -0,0 +1,194 @@
|
||||||
|
+// SPDX-License-Identifier: GPL-2.0+
|
||||||
|
+/*
|
||||||
|
+ * Allwinner sun50i(H6) USB 3.0 phy driver
|
||||||
|
+ *
|
||||||
|
+ * Copyright (C) 2017 Icenowy Zheng <icenowy@aosc.io>
|
||||||
|
+ *
|
||||||
|
+ * Based on phy-sun9i-usb.c, which is:
|
||||||
|
+ *
|
||||||
|
+ * Copyright (C) 2014-2015 Chen-Yu Tsai <wens@csie.org>
|
||||||
|
+ *
|
||||||
|
+ * Based on code from Allwinner BSP, which is:
|
||||||
|
+ *
|
||||||
|
+ * Copyright (c) 2010-2015 Allwinner Technology Co., Ltd.
|
||||||
|
+ */
|
||||||
|
+
|
||||||
|
+#include <linux/clk.h>
|
||||||
|
+#include <linux/err.h>
|
||||||
|
+#include <linux/io.h>
|
||||||
|
+#include <linux/module.h>
|
||||||
|
+#include <linux/phy/phy.h>
|
||||||
|
+#include <linux/usb/of.h>
|
||||||
|
+#include <linux/platform_device.h>
|
||||||
|
+#include <linux/reset.h>
|
||||||
|
+
|
||||||
|
+/* Interface Status and Control Registers */
|
||||||
|
+#define SUNXI_ISCR 0x00
|
||||||
|
+#define SUNXI_PIPE_CLOCK_CONTROL 0x14
|
||||||
|
+#define SUNXI_PHY_TUNE_LOW 0x18
|
||||||
|
+#define SUNXI_PHY_TUNE_HIGH 0x1c
|
||||||
|
+#define SUNXI_PHY_EXTERNAL_CONTROL 0x20
|
||||||
|
+
|
||||||
|
+/* USB2.0 Interface Status and Control Register */
|
||||||
|
+#define SUNXI_ISCR_FORCE_VBUS (3 << 12)
|
||||||
|
+
|
||||||
|
+/* PIPE Clock Control Register */
|
||||||
|
+#define SUNXI_PCC_PIPE_CLK_OPEN (1 << 6)
|
||||||
|
+
|
||||||
|
+/* PHY External Control Register */
|
||||||
|
+#define SUNXI_PEC_EXTERN_VBUS (3 << 1)
|
||||||
|
+#define SUNXI_PEC_SSC_EN (1 << 24)
|
||||||
|
+#define SUNXI_PEC_REF_SSP_EN (1 << 26)
|
||||||
|
+
|
||||||
|
+/* PHY Tune High Register */
|
||||||
|
+#define SUNXI_TX_DEEMPH_3P5DB(n) ((n) << 19)
|
||||||
|
+#define SUNXI_TX_DEEMPH_3P5DB_MASK GENMASK(24, 19)
|
||||||
|
+#define SUNXI_TX_DEEMPH_6DB(n) ((n) << 13)
|
||||||
|
+#define SUNXI_TX_DEEMPH_6GB_MASK GENMASK(18, 13)
|
||||||
|
+#define SUNXI_TX_SWING_FULL(n) ((n) << 6)
|
||||||
|
+#define SUNXI_TX_SWING_FULL_MASK GENMASK(12, 6)
|
||||||
|
+#define SUNXI_LOS_BIAS(n) ((n) << 3)
|
||||||
|
+#define SUNXI_LOS_BIAS_MASK GENMASK(5, 3)
|
||||||
|
+#define SUNXI_TXVBOOSTLVL(n) ((n) << 0)
|
||||||
|
+#define SUNXI_TXVBOOSTLVL_MASK GENMASK(0, 2)
|
||||||
|
+
|
||||||
|
+struct sun50i_usb3_phy {
|
||||||
|
+ struct phy *phy;
|
||||||
|
+ void __iomem *regs;
|
||||||
|
+ struct reset_control *reset;
|
||||||
|
+ struct clk *clk;
|
||||||
|
+};
|
||||||
|
+
|
||||||
|
+static void sun50i_usb3_phy_open(struct sun50i_usb3_phy *phy)
|
||||||
|
+{
|
||||||
|
+ u32 val;
|
||||||
|
+
|
||||||
|
+ val = readl(phy->regs + SUNXI_PHY_EXTERNAL_CONTROL);
|
||||||
|
+ val |= SUNXI_PEC_EXTERN_VBUS;
|
||||||
|
+ val |= SUNXI_PEC_SSC_EN | SUNXI_PEC_REF_SSP_EN;
|
||||||
|
+ writel(val, phy->regs + SUNXI_PHY_EXTERNAL_CONTROL);
|
||||||
|
+
|
||||||
|
+ val = readl(phy->regs + SUNXI_PIPE_CLOCK_CONTROL);
|
||||||
|
+ val |= SUNXI_PCC_PIPE_CLK_OPEN;
|
||||||
|
+ writel(val, phy->regs + SUNXI_PIPE_CLOCK_CONTROL);
|
||||||
|
+
|
||||||
|
+ val = readl(phy->regs + SUNXI_ISCR);
|
||||||
|
+ val |= SUNXI_ISCR_FORCE_VBUS;
|
||||||
|
+ writel(val, phy->regs + SUNXI_ISCR);
|
||||||
|
+
|
||||||
|
+ /*
|
||||||
|
+ * All the magic numbers written to the PHY_TUNE_{LOW_HIGH}
|
||||||
|
+ * registers are directly taken from the BSP USB3 driver from
|
||||||
|
+ * Allwiner.
|
||||||
|
+ */
|
||||||
|
+ writel(0x0047fc87, phy->regs + SUNXI_PHY_TUNE_LOW);
|
||||||
|
+
|
||||||
|
+ val = readl(phy->regs + SUNXI_PHY_TUNE_HIGH);
|
||||||
|
+ val &= ~(SUNXI_TXVBOOSTLVL_MASK | SUNXI_LOS_BIAS_MASK |
|
||||||
|
+ SUNXI_TX_SWING_FULL_MASK | SUNXI_TX_DEEMPH_6GB_MASK |
|
||||||
|
+ SUNXI_TX_DEEMPH_3P5DB_MASK);
|
||||||
|
+ val |= SUNXI_TXVBOOSTLVL(0x7);
|
||||||
|
+ val |= SUNXI_LOS_BIAS(0x7);
|
||||||
|
+ val |= SUNXI_TX_SWING_FULL(0x55);
|
||||||
|
+ val |= SUNXI_TX_DEEMPH_6DB(0x20);
|
||||||
|
+ val |= SUNXI_TX_DEEMPH_3P5DB(0x15);
|
||||||
|
+ writel(val, phy->regs + SUNXI_PHY_TUNE_HIGH);
|
||||||
|
+}
|
||||||
|
+
|
||||||
|
+static int sun50i_usb3_phy_init(struct phy *_phy)
|
||||||
|
+{
|
||||||
|
+ struct sun50i_usb3_phy *phy = phy_get_drvdata(_phy);
|
||||||
|
+ int ret;
|
||||||
|
+
|
||||||
|
+ ret = clk_prepare_enable(phy->clk);
|
||||||
|
+ if (ret)
|
||||||
|
+ goto err_clk;
|
||||||
|
+
|
||||||
|
+ ret = reset_control_deassert(phy->reset);
|
||||||
|
+ if (ret)
|
||||||
|
+ goto err_reset;
|
||||||
|
+
|
||||||
|
+ sun50i_usb3_phy_open(phy);
|
||||||
|
+ return 0;
|
||||||
|
+
|
||||||
|
+err_reset:
|
||||||
|
+ clk_disable_unprepare(phy->clk);
|
||||||
|
+
|
||||||
|
+err_clk:
|
||||||
|
+ return ret;
|
||||||
|
+}
|
||||||
|
+
|
||||||
|
+static int sun50i_usb3_phy_exit(struct phy *_phy)
|
||||||
|
+{
|
||||||
|
+ struct sun50i_usb3_phy *phy = phy_get_drvdata(_phy);
|
||||||
|
+
|
||||||
|
+ reset_control_assert(phy->reset);
|
||||||
|
+ clk_disable_unprepare(phy->clk);
|
||||||
|
+
|
||||||
|
+ return 0;
|
||||||
|
+}
|
||||||
|
+
|
||||||
|
+static const struct phy_ops sun50i_usb3_phy_ops = {
|
||||||
|
+ .init = sun50i_usb3_phy_init,
|
||||||
|
+ .exit = sun50i_usb3_phy_exit,
|
||||||
|
+ .owner = THIS_MODULE,
|
||||||
|
+};
|
||||||
|
+
|
||||||
|
+static int sun50i_usb3_phy_probe(struct platform_device *pdev)
|
||||||
|
+{
|
||||||
|
+ struct sun50i_usb3_phy *phy;
|
||||||
|
+ struct device *dev = &pdev->dev;
|
||||||
|
+ struct phy_provider *phy_provider;
|
||||||
|
+ struct resource *res;
|
||||||
|
+
|
||||||
|
+ phy = devm_kzalloc(dev, sizeof(*phy), GFP_KERNEL);
|
||||||
|
+ if (!phy)
|
||||||
|
+ return -ENOMEM;
|
||||||
|
+
|
||||||
|
+ phy->clk = devm_clk_get(dev, NULL);
|
||||||
|
+ if (IS_ERR(phy->clk)) {
|
||||||
|
+ dev_err(dev, "failed to get phy clock\n");
|
||||||
|
+ return PTR_ERR(phy->clk);
|
||||||
|
+ }
|
||||||
|
+
|
||||||
|
+ phy->reset = devm_reset_control_get(dev, NULL);
|
||||||
|
+ if (IS_ERR(phy->reset)) {
|
||||||
|
+ dev_err(dev, "failed to get reset control\n");
|
||||||
|
+ return PTR_ERR(phy->reset);
|
||||||
|
+ }
|
||||||
|
+
|
||||||
|
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
||||||
|
+ phy->regs = devm_ioremap_resource(dev, res);
|
||||||
|
+ if (IS_ERR(phy->regs))
|
||||||
|
+ return PTR_ERR(phy->regs);
|
||||||
|
+
|
||||||
|
+ phy->phy = devm_phy_create(dev, NULL, &sun50i_usb3_phy_ops);
|
||||||
|
+ if (IS_ERR(phy->phy)) {
|
||||||
|
+ dev_err(dev, "failed to create PHY\n");
|
||||||
|
+ return PTR_ERR(phy->phy);
|
||||||
|
+ }
|
||||||
|
+
|
||||||
|
+ phy_set_drvdata(phy->phy, phy);
|
||||||
|
+ phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate);
|
||||||
|
+
|
||||||
|
+ return PTR_ERR_OR_ZERO(phy_provider);
|
||||||
|
+}
|
||||||
|
+
|
||||||
|
+static const struct of_device_id sun50i_usb3_phy_of_match[] = {
|
||||||
|
+ { .compatible = "allwinner,sun50i-h6-usb3-phy" },
|
||||||
|
+ { },
|
||||||
|
+};
|
||||||
|
+MODULE_DEVICE_TABLE(of, sun50i_usb3_phy_of_match);
|
||||||
|
+
|
||||||
|
+static struct platform_driver sun50i_usb3_phy_driver = {
|
||||||
|
+ .probe = sun50i_usb3_phy_probe,
|
||||||
|
+ .driver = {
|
||||||
|
+ .of_match_table = sun50i_usb3_phy_of_match,
|
||||||
|
+ .name = "sun50i-usb3-phy",
|
||||||
|
+ }
|
||||||
|
+};
|
||||||
|
+module_platform_driver(sun50i_usb3_phy_driver);
|
||||||
|
+
|
||||||
|
+MODULE_DESCRIPTION("Allwinner sun50i USB 3.0 phy driver");
|
||||||
|
+MODULE_AUTHOR("Icenowy Zheng <icenowy@aosc.io>");
|
||||||
|
+MODULE_LICENSE("GPL");
|
Loading…
x
Reference in New Issue
Block a user