From: David Lechner <david@lechnology.com>
To: nsekhar@ti.com
Cc: petr@barix.com, sergei.shtylyov@cogentembedded.com,
khilman@kernel.org, David Lechner <david@lechnology.com>,
Rob Herring <robh+dt@kernel.org>, Pawel Moll <pawel.moll@arm.com>,
Mark Rutland <mark.rutland@arm.com>,
Ian Campbell <ijc+devicetree@hellion.org.uk>,
Kumar Gala <galak@codeaurora.org>,
Kishon Vijay Abraham I <kishon@ti.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Alan Stern <stern@rowland.harvard.edu>, Bin Liu <b-liu@ti.com>,
Lee Jones <lee.jones@linaro.org>,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-usb@vger.kernel.org
Subject: [PATCH v4 3/5] ARM: davinci: da8xx: Add USB PHY platform declaration
Date: Thu, 14 Apr 2016 14:44:16 -0500 [thread overview]
Message-ID: <1460663058-9462-4-git-send-email-david@lechnology.com> (raw)
In-Reply-To: <1460663058-9462-1-git-send-email-david@lechnology.com>
There is now a proper phy driver for the DA8xx SoC USB PHY. This adds the
platform device declarations needed to use it.
Signed-off-by: David Lechner <david@lechnology.com>
---
v4 changes: none
arch/arm/mach-davinci/board-da830-evm.c | 28 +++++-----------------------
arch/arm/mach-davinci/board-omapl138-hawk.c | 5 +++++
arch/arm/mach-davinci/include/mach/da8xx.h | 1 +
arch/arm/mach-davinci/usb-da8xx.c | 11 +++++++++++
4 files changed, 22 insertions(+), 23 deletions(-)
diff --git a/arch/arm/mach-davinci/board-da830-evm.c b/arch/arm/mach-davinci/board-da830-evm.c
index 3051cb6..6421cfe 100644
--- a/arch/arm/mach-davinci/board-da830-evm.c
+++ b/arch/arm/mach-davinci/board-da830-evm.c
@@ -26,7 +26,6 @@
#include <linux/platform_data/mtd-davinci.h>
#include <linux/platform_data/mtd-davinci-aemif.h>
#include <linux/platform_data/spi-davinci.h>
-#include <linux/platform_data/usb-davinci.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
@@ -106,30 +105,8 @@ static irqreturn_t da830_evm_usb_ocic_irq(int irq, void *dev_id)
static __init void da830_evm_usb_init(void)
{
- u32 cfgchip2;
int ret;
- /*
- * Set up USB clock/mode in the CFGCHIP2 register.
- * FYI: CFGCHIP2 is 0x0000ef00 initially.
- */
- cfgchip2 = __raw_readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP2_REG));
-
- /*
- * We have to override VBUS/ID signals when MUSB is configured into the
- * host-only mode -- ID pin will float if no cable is connected, so the
- * controller won't be able to drive VBUS thinking that it's a B-device.
- * Otherwise, we want to use the OTG mode and enable VBUS comparators.
- */
- cfgchip2 &= ~CFGCHIP2_OTGMODE;
-#ifdef CONFIG_USB_MUSB_HOST
- cfgchip2 |= CFGCHIP2_FORCE_HOST;
-#else
- cfgchip2 |= CFGCHIP2_SESENDEN | CFGCHIP2_VBDTCTEN;
-#endif
-
- __raw_writel(cfgchip2, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP2_REG));
-
/* USB_REFCLKIN is not used. */
ret = da8xx_register_usb20_phy_clk(false);
if (ret)
@@ -141,6 +118,11 @@ static __init void da830_evm_usb_init(void)
pr_warn("%s: USB 1.1 PHY CLK registration failed: %d\n",
__func__, ret);
+ ret = da8xx_register_usbphy();
+ if (ret)
+ pr_warn("%s: USB PHY registration failed: %d\n",
+ __func__, ret);
+
ret = davinci_cfg_reg(DA830_USB0_DRVVBUS);
if (ret)
pr_warn("%s: USB 2.0 PinMux setup failed: %d\n", __func__, ret);
diff --git a/arch/arm/mach-davinci/board-omapl138-hawk.c b/arch/arm/mach-davinci/board-omapl138-hawk.c
index 8691a25..79aaa84 100644
--- a/arch/arm/mach-davinci/board-omapl138-hawk.c
+++ b/arch/arm/mach-davinci/board-omapl138-hawk.c
@@ -260,6 +260,11 @@ static __init void omapl138_hawk_usb_init(void)
pr_warn("%s: USB 1.1 PHY CLK registration failed: %d\n",
__func__, ret);
+ ret = da8xx_register_usbphy();
+ if (ret)
+ pr_warn("%s: USB PHY registration failed: %d\n",
+ __func__, ret);
+
ret = gpio_request_one(DA850_USB1_VBUS_PIN,
GPIOF_DIR_OUT, "USB1 VBUS");
if (ret < 0) {
diff --git a/arch/arm/mach-davinci/include/mach/da8xx.h b/arch/arm/mach-davinci/include/mach/da8xx.h
index c32444b..44ab55e 100644
--- a/arch/arm/mach-davinci/include/mach/da8xx.h
+++ b/arch/arm/mach-davinci/include/mach/da8xx.h
@@ -92,6 +92,7 @@ int da8xx_register_watchdog(void);
int da8xx_register_usb_refclkin(int rate);
int da8xx_register_usb20_phy_clk(bool use_usb_refclkin);
int da8xx_register_usb11_phy_clk(bool use_usb_refclkin);
+int da8xx_register_usbphy(void);
int da8xx_register_usb20(unsigned mA, unsigned potpgt);
int da8xx_register_usb11(struct da8xx_ohci_root_hub *pdata);
int da8xx_register_emac(void);
diff --git a/arch/arm/mach-davinci/usb-da8xx.c b/arch/arm/mach-davinci/usb-da8xx.c
index c524d9e..3b64dcf 100644
--- a/arch/arm/mach-davinci/usb-da8xx.c
+++ b/arch/arm/mach-davinci/usb-da8xx.c
@@ -7,6 +7,7 @@
#include <linux/platform_data/usb-davinci.h>
#include <linux/platform_device.h>
#include <linux/mfd/da8xx-cfgchip.h>
+#include <linux/phy/phy.h>
#include <linux/usb/musb.h>
#include <mach/clock.h>
@@ -230,6 +231,16 @@ int __init da8xx_register_usb11_phy_clk(bool use_usb_refclkin)
return ret;
}
+static struct platform_device da8xx_usbphy = {
+ .name = "da8xx-usbphy",
+ .id = 0,
+};
+
+int __init da8xx_register_usbphy(void)
+{
+ return platform_device_register(&da8xx_usbphy);
+}
+
#if IS_ENABLED(CONFIG_USB_MUSB_HDRC)
static struct musb_hdrc_config musb_config = {
--
1.9.1
next prev parent reply other threads:[~2016-04-14 19:46 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-14 19:44 [PATCH v4 0/5] da8xx USB PHY platform devices and clocks (was "da8xx UBS clocks") David Lechner
2016-04-14 19:44 ` [PATCH v4 1/5] ARM: davinci: da8xx: add usb phy clocks David Lechner
2016-04-14 19:44 ` [PATCH v4 2/5] ARM: davinci: da8xx: Add CFGCHIP syscon platform declaration David Lechner
2016-04-14 19:44 ` David Lechner [this message]
2016-04-14 19:44 ` [PATCH v4 4/5] ARM: DTS: da850: Add cfgchip syscon node David Lechner
2016-04-14 19:44 ` [PATCH v4 5/5] ARM: DTS: da850: Add usb phy node David Lechner
2016-04-14 19:51 ` Sergei Shtylyov
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