Merge tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC specific changes from Arnd Bergmann:
 "These changes are all to SoC-specific code, a total of 33 branches on
  17 platforms were pulled into this.  Like last time, Renesas sh-mobile
  is now the platform with the most changes, followed by OMAP and
  EXYNOS.

  Two new platforms, TI Keystone and Rockchips RK3xxx are added in this
  branch, both containing almost no platform specific code at all, since
  they are using generic subsystem interfaces for clocks, pinctrl,
  interrupts etc.  The device drivers are getting merged through the
  respective subsystem maintainer trees.

  One more SoC (u300) is now multiplatform capable and several others
  (shmobile, exynos, msm, integrator, kirkwood, clps711x) are moving
  towards that goal with this series but need more work.

  Also noteworthy is the work on PCI here, which is traditionally part
  of the SoC specific code.  With the changes done by Thomas Petazzoni,
  we can now more easily have PCI host controller drivers as loadable
  modules and keep them separate from the platform code in
  drivers/pci/host.  This has already led to the discovery that three
  platforms (exynos, spear and imx) are actually using an identical PCIe
  host controller and will be able to share a driver once support for
  spear and imx is added."

* tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (480 commits)
  ARM: integrator: let pciv3 use mem/premem from device tree
  ARM: integrator: set local side PCI addresses right
  ARM: dts: Add pcie controller node for exynos5440-ssdk5440
  ARM: dts: Add pcie controller node for Samsung EXYNOS5440 SoC
  ARM: EXYNOS: Enable PCIe support for Exynos5440
  pci: Add PCIe driver for Samsung Exynos
  ARM: OMAP5: voltagedomain data: remove temporary OMAP4 voltage data
  ARM: keystone: Move CPU bringup code to dedicated asm file
  ARM: multiplatform: always pick one CPU type
  ARM: imx: select syscon for IMX6SL
  ARM: keystone: select ARM_ERRATA_798181 only for SMP
  ARM: imx: Synertronixx scb9328 needs to select SOC_IMX1
  ARM: OMAP2+: AM43x: resolve SMP related build error
  dmaengine: edma: enable build for AM33XX
  ARM: edma: Add EDMA crossbar event mux support
  ARM: edma: Add DT and runtime PM support to the private EDMA API
  dmaengine: edma: Add TI EDMA device tree binding
  arm: add basic support for Rockchip RK3066a boards
  arm: add debug uarts for rockchip rk29xx and rk3xxx series
  arm: Add basic clocks for Rockchip rk3066a SoCs
  ...

4 files changed, 94 insertions, 52 deletions

diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 7d0aa5f..2817013 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -223,7 +223,7 @@ config USB_EHCI_SH
 
 config USB_EHCI_S5P
        tristate "EHCI support for Samsung S5P/EXYNOS SoC Series"
-       depends on PLAT_S5P
+       depends on PLAT_S5P || ARCH_EXYNOS
        help
 	Enable support for the Samsung S5Pxxxx and Exynos3/4/5 SOC's
 	on-chip EHCI controller.
diff --git a/drivers/usb/host/ehci-platform.c b/drivers/usb/host/ehci-platform.c
index 5733f8e..5196d72 100644
--- a/drivers/usb/host/ehci-platform.c
+++ b/drivers/usb/host/ehci-platform.c
@@ -48,6 +48,12 @@ static int ehci_platform_reset(struct usb_hcd *hcd)
 	ehci->big_endian_desc = pdata->big_endian_desc;
 	ehci->big_endian_mmio = pdata->big_endian_mmio;
 
+	if (pdata->pre_setup) {
+		retval = pdata->pre_setup(hcd);
+		if (retval < 0)
+			return retval;
+	}
+
 	ehci->caps = hcd->regs + pdata->caps_offset;
 	retval = ehci_setup(hcd);
 	if (retval)
diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig
index a5a9552..3622fff 100644
--- a/drivers/usb/phy/Kconfig
+++ b/drivers/usb/phy/Kconfig
@@ -186,15 +186,15 @@ config USB_MXS_PHY
 	  MXS Phy is used by some of the i.MX SoCs, for example imx23/28/6x.
 
 config USB_RCAR_PHY
-	tristate "Renesas R-Car USB phy support"
+	tristate "Renesas R-Car USB PHY support"
 	depends on USB || USB_GADGET
 	help
-	  Say Y here to add support for the Renesas R-Car USB phy driver.
-	  This chip is typically used as USB phy for USB host, gadget.
-	  This driver supports: R8A7779
+	  Say Y here to add support for the Renesas R-Car USB common PHY driver.
+	  This chip is typically used as USB PHY for USB host, gadget.
+	  This driver supports R8A7778 and R8A7779.
 
 	  To compile this driver as a module, choose M here: the
-	  module will be called rcar-phy.
+	  module will be called phy-rcar-usb.
 
 config USB_ULPI
 	bool "Generic ULPI Transceiver Driver"
diff --git a/drivers/usb/phy/phy-rcar-usb.c b/drivers/usb/phy/phy-rcar-usb.c
index 23c3dd3..ae90940 100644
--- a/drivers/usb/phy/phy-rcar-usb.c
+++ b/drivers/usb/phy/phy-rcar-usb.c
@@ -1,8 +1,9 @@
 /*
  * Renesas R-Car USB phy driver
  *
- * Copyright (C) 2012 Renesas Solutions Corp.
+ * Copyright (C) 2012-2013 Renesas Solutions Corp.
  * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+ * Copyright (C) 2013 Cogent Embedded, Inc.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -15,17 +16,41 @@
 #include <linux/platform_device.h>
 #include <linux/spinlock.h>
 #include <linux/module.h>
-
-/* USBH common register */
-#define USBPCTRL0	0x0800
-#define USBPCTRL1	0x0804
-#define USBST		0x0808
-#define USBEH0		0x080C
-#define USBOH0		0x081C
-#define USBCTL0		0x0858
-#define EIIBC1		0x0094
-#define EIIBC2		0x009C
-
+#include <linux/platform_data/usb-rcar-phy.h>
+
+/* REGS block */
+#define USBPCTRL0	0x00
+#define USBPCTRL1	0x04
+#define USBST		0x08
+#define USBEH0		0x0C
+#define USBOH0		0x1C
+#define USBCTL0		0x58
+
+/* High-speed signal quality characteristic control registers (R8A7778 only) */
+#define HSQCTL1		0x24
+#define HSQCTL2		0x28
+
+/* USBPCTRL0 */
+#define OVC2		(1 << 10) /* (R8A7779 only)			*/
+				/* Switches the OVC input pin for port 2: */
+				/* 1: USB_OVC2, 0: OVC2			*/
+#define OVC1_VBUS1	(1 << 9) /* Switches the OVC input pin for port 1: */
+				/* 1: USB_OVC1, 0: OVC1/VBUS1		*/
+				/* Function mode: set to 0		*/
+#define OVC0		(1 << 8) /* Switches the OVC input pin for port 0: */
+				/* 1: USB_OVC0 pin, 0: OVC0		*/
+#define OVC2_ACT 	(1 << 6) /* (R8A7779 only)			*/
+				/* Host mode: OVC2 polarity:		*/
+				/* 1: active-high, 0: active-low	*/
+#define PENC		(1 << 4) /* Function mode: output level of PENC1 pin: */
+				/* 1: high, 0: low			*/
+#define OVC0_ACT 	(1 << 3) /* Host mode: OVC0 polarity:		*/
+				/* 1: active-high, 0: active-low	*/
+#define OVC1_ACT	(1 << 1) /* Host mode: OVC1 polarity:		*/
+				/* 1: active-high, 0: active-low	*/
+				/* Function mode: be sure to set to 1	*/
+#define PORT1		(1 << 0) /* Selects port 1 mode:		*/
+				/* 1: function, 0: host			*/
 /* USBPCTRL1 */
 #define PHY_RST		(1 << 2)
 #define PLL_ENB		(1 << 1)
@@ -58,8 +83,10 @@ static int rcar_usb_phy_init(struct usb_phy *phy)
 {
 	struct rcar_usb_phy_priv *priv = usb_phy_to_priv(phy);
 	struct device *dev = phy->dev;
+	struct rcar_phy_platform_data *pdata = dev->platform_data;
 	void __iomem *reg0 = priv->reg0;
 	void __iomem *reg1 = priv->reg1;
+	static const u8 ovcn_act[] = { OVC0_ACT, OVC1_ACT, OVC2_ACT };
 	int i;
 	u32 val;
 	unsigned long flags;
@@ -77,7 +104,16 @@ static int rcar_usb_phy_init(struct usb_phy *phy)
 		/* (2) start USB-PHY internal PLL */
 		iowrite32(PHY_ENB | PLL_ENB, (reg0 + USBPCTRL1));
 
-		/* (3) USB module status check */
+		/* (3) set USB-PHY in accord with the conditions of usage */
+		if (reg1) {
+			u32 hsqctl1 = pdata->ferrite_bead ? 0x41 : 0;
+			u32 hsqctl2 = pdata->ferrite_bead ? 0x0d : 7;
+
+			iowrite32(hsqctl1, reg1 + HSQCTL1);
+			iowrite32(hsqctl2, reg1 + HSQCTL2);
+		}
+
+		/* (4) USB module status check */
 		for (i = 0; i < 1024; i++) {
 			udelay(10);
 			val = ioread32(reg0 + USBST);
@@ -90,24 +126,24 @@ static int rcar_usb_phy_init(struct usb_phy *phy)
 			goto phy_init_end;
 		}
 
-		/* (4) USB-PHY reset clear */
+		/* (5) USB-PHY reset clear */
 		iowrite32(PHY_ENB | PLL_ENB | PHY_RST, (reg0 + USBPCTRL1));
 
-		/* set platform specific port settings */
-		iowrite32(0x00000000, (reg0 + USBPCTRL0));
-
-		/*
-		 * EHCI IP internal buffer setting
-		 * EHCI IP internal buffer enable
-		 *
-		 * These are recommended value of a datasheet
-		 * see [USB :: EHCI internal buffer setting]
-		 */
-		iowrite32(0x00ff0040, (reg0 + EIIBC1));
-		iowrite32(0x00ff0040, (reg1 + EIIBC1));
-
-		iowrite32(0x00000001, (reg0 + EIIBC2));
-		iowrite32(0x00000001, (reg1 + EIIBC2));
+		/* Board specific port settings */
+		val = 0;
+		if (pdata->port1_func)
+			val |= PORT1;
+		if (pdata->penc1)
+			val |= PENC;
+		for (i = 0; i < 3; i++) {
+			/* OVCn bits follow each other in the right order */
+			if (pdata->ovc_pin[i].select_3_3v)
+				val |= OVC0 << i;
+			/* OVCn_ACT bits are spaced by irregular intervals */
+			if (pdata->ovc_pin[i].active_high)
+				val |= ovcn_act[i];
+		}
+		iowrite32(val, (reg0 + USBPCTRL0));
 
 		/*
 		 * Bus alignment settings
@@ -134,10 +170,8 @@ static void rcar_usb_phy_shutdown(struct usb_phy *phy)
 
 	spin_lock_irqsave(&priv->lock, flags);
 
-	if (priv->counter-- == 1) { /* last user */
-		iowrite32(0x00000000, (reg0 + USBPCTRL0));
+	if (priv->counter-- == 1)	/* last user */
 		iowrite32(0x00000000, (reg0 + USBPCTRL1));
-	}
 
 	spin_unlock_irqrestore(&priv->lock, flags);
 }
@@ -147,27 +181,29 @@ static int rcar_usb_phy_probe(struct platform_device *pdev)
 	struct rcar_usb_phy_priv *priv;
 	struct resource *res0, *res1;
 	struct device *dev = &pdev->dev;
-	void __iomem *reg0, *reg1;
+	void __iomem *reg0, *reg1 = NULL;
 	int ret;
 
+	if (!pdev->dev.platform_data) {
+		dev_err(dev, "No platform data\n");
+		return -EINVAL;
+	}
+
 	res0 = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	res1 = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-	if (!res0 || !res1) {
+	if (!res0) {
 		dev_err(dev, "Not enough platform resources\n");
 		return -EINVAL;
 	}
 
-	/*
-	 * CAUTION
-	 *
-	 * Because this phy address is also mapped under OHCI/EHCI address area,
-	 * this driver can't use devm_ioremap_resource(dev, res) here
-	 */
-	reg0 = devm_ioremap_nocache(dev, res0->start, resource_size(res0));
-	reg1 = devm_ioremap_nocache(dev, res1->start, resource_size(res1));
-	if (!reg0 || !reg1) {
-		dev_err(dev, "ioremap error\n");
-		return -ENOMEM;
+	reg0 = devm_ioremap_resource(dev, res0);
+	if (IS_ERR(reg0))
+		return PTR_ERR(reg0);
+
+	res1 = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+	if (res1) {
+		reg1 = devm_ioremap_resource(dev, res1);
+		if (IS_ERR(reg1))
+			return PTR_ERR(reg1);
 	}
 
 	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);