On Fri, Sep 13, 2013 at 3:40 AM, Sean Cross <xobs@xxxxxxxxxx> wrote: > Add support for the PCIe port present on the i.MX6 family of controllers. > These use the Synopsis Designware core tied to their own PHY. > > Signed-off-by: Sean Cross <xobs@xxxxxxxxxx> Acked-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx> Please merge along with the rest of your series via the ARM tree. > --- > .../devicetree/bindings/pci/designware-pcie.txt | 5 + > arch/arm/boot/dts/imx6qdl.dtsi | 16 + > arch/arm/mach-imx/Kconfig | 2 + > arch/arm/mach-imx/clk-imx6q.c | 11 + > drivers/pci/host/Kconfig | 6 + > drivers/pci/host/Makefile | 1 + > drivers/pci/host/pci-imx6.c | 482 ++++++++++++++++++++ > 7 files changed, 523 insertions(+) > create mode 100644 drivers/pci/host/pci-imx6.c > > diff --git a/Documentation/devicetree/bindings/pci/designware-pcie.txt b/Documentation/devicetree/bindings/pci/designware-pcie.txt > index eabcb4b..41d8419 100644 > --- a/Documentation/devicetree/bindings/pci/designware-pcie.txt > +++ b/Documentation/devicetree/bindings/pci/designware-pcie.txt > @@ -21,6 +21,11 @@ Required properties: > - num-lanes: number of lanes to use > - reset-gpio: gpio pin number of power good signal > > +Optional properties for fsl,imx6-pcie > +- power-on-gpio: gpio pin number of power-enable signal > +- wake-up-gpio: gpio pin number of incoming wakeup signal > +- disable-gpio: gpio pin number of outgoing rfkill/endpoint disable signal > + > Example: > > SoC specific DT Entry: > diff --git a/arch/arm/boot/dts/imx6qdl.dtsi b/arch/arm/boot/dts/imx6qdl.dtsi > index ccd55c2..ec72271 100644 > --- a/arch/arm/boot/dts/imx6qdl.dtsi > +++ b/arch/arm/boot/dts/imx6qdl.dtsi > @@ -116,6 +116,22 @@ > arm,data-latency = <4 2 3>; > }; > > + pcie: pcie@0x01000000 { > + compatible = "fsl,imx6-pcie", "snps,dw-pcie"; > + reg = <0x01ffc000 0x4000>; /* DBI */ > + > + #address-cells = <3>; > + #size-cells = <2>; > + device_type = "pci"; > + ranges = <0x00000800 0 0x01f00000 0x01f00000 0 0x00080000 /* configuration space */ > + 0x81000000 0 0 0x01f80000 0 0x00010000 /* downstream I/O */ > + 0x82000000 0 0x01000000 0x01000000 0 0x00f00000>; /* non-prefetchable memory */ > + > + num-lanes = <1>; > + interrupts = <0 123 0x04>; > + status = "disabled"; > + }; > + > pmu { > compatible = "arm,cortex-a9-pmu"; > interrupts = <0 94 0x04>; > diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig > index 29a8af6..e6ac281 100644 > --- a/arch/arm/mach-imx/Kconfig > +++ b/arch/arm/mach-imx/Kconfig > @@ -801,6 +801,8 @@ config SOC_IMX6Q > select HAVE_IMX_SRC > select HAVE_SMP > select MFD_SYSCON > + select MIGHT_HAVE_PCI > + select PCI_DOMAINS if PCI > select PINCTRL > select PINCTRL_IMX6Q > select PL310_ERRATA_588369 if CACHE_PL310 > diff --git a/arch/arm/mach-imx/clk-imx6q.c b/arch/arm/mach-imx/clk-imx6q.c > index 679d49a..0a2093c 100644 > --- a/arch/arm/mach-imx/clk-imx6q.c > +++ b/arch/arm/mach-imx/clk-imx6q.c > @@ -622,6 +622,17 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node) > if (ret) > pr_warn("failed to set up CLKO: %d\n", ret); > > + /* > + * All existing boards with PCIe run them off LVDS1 > + */ > + if (IS_ENABLED(CONFIG_PCI_IMX6)) { > + clk_set_parent(clk[lvds1_sel], clk[sata_ref]); > + clk_prepare_enable(clk[lvds1_gate]); > + clk_prepare_enable(clk[pcie_ref_125m]); > + clk_prepare_enable(clk[pcie_axi]); > + } > + > + > /* Set initial power mode */ > imx6q_set_lpm(WAIT_CLOCKED); > > diff --git a/drivers/pci/host/Kconfig b/drivers/pci/host/Kconfig > index 3d95048..efa24d9 100644 > --- a/drivers/pci/host/Kconfig > +++ b/drivers/pci/host/Kconfig > @@ -15,6 +15,12 @@ config PCI_EXYNOS > select PCIEPORTBUS > select PCIE_DW > > +config PCI_IMX6 > + bool "Freescale i.MX6 PCIe controller" > + depends on SOC_IMX6Q > + select PCIEPORTBUS > + select PCIE_DW > + > config PCI_TEGRA > bool "NVIDIA Tegra PCIe controller" > depends on ARCH_TEGRA > diff --git a/drivers/pci/host/Makefile b/drivers/pci/host/Makefile > index c9a997b..287d6a0 100644 > --- a/drivers/pci/host/Makefile > +++ b/drivers/pci/host/Makefile > @@ -1,4 +1,5 @@ > obj-$(CONFIG_PCIE_DW) += pcie-designware.o > obj-$(CONFIG_PCI_EXYNOS) += pci-exynos.o > +obj-$(CONFIG_PCI_IMX6) += pci-imx6.o > obj-$(CONFIG_PCI_MVEBU) += pci-mvebu.o > obj-$(CONFIG_PCI_TEGRA) += pci-tegra.o > diff --git a/drivers/pci/host/pci-imx6.c b/drivers/pci/host/pci-imx6.c > new file mode 100644 > index 0000000..a3f9053 > --- /dev/null > +++ b/drivers/pci/host/pci-imx6.c > @@ -0,0 +1,482 @@ > +/* > + * PCIe host controller driver for Freescale i.MX6 SoCs > + * > + * Copyright (C) 2013 Kosagi > + * http://www.kosagi.com > + * > + * Author: Sean Cross <xobs@xxxxxxxxxx> > + * > + * 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 > + * published by the Free Software Foundation. > + */ > + > +#include <linux/delay.h> > +#include <linux/gpio.h> > +#include <linux/kernel.h> > +#include <linux/module.h> > +#include <linux/of_gpio.h> > +#include <linux/pci.h> > +#include <linux/platform_device.h> > +#include <linux/resource.h> > +#include <linux/signal.h> > +#include <linux/types.h> > +#include <linux/regmap.h> > +#include <linux/mfd/syscon.h> > +#include <linux/mfd/syscon/imx6q-iomuxc-gpr.h> > + > +#include "pcie-designware.h" > + > +#define to_imx6_pcie(x) container_of(x, struct imx6_pcie, pp) > + > +struct imx6_pcie { > + int reset_gpio; > + int power_on_gpio; > + int wake_up_gpio; > + int disable_gpio; > + struct pcie_port pp; > + struct regmap *iomuxc_gpr; > + void __iomem *mem_base; > +}; > + > +/* PCIe Port Logic registers (memory-mapped) */ > +#define PL_OFFSET 0x700 > +#define PCIE_PHY_DEBUG_R0 (PL_OFFSET + 0x28) > +#define PCIE_PHY_DEBUG_R1 (PL_OFFSET + 0x2c) > + > +#define PCIE_PHY_CTRL (PL_OFFSET + 0x114) > +#define PCIE_PHY_CTRL_DATA_LOC 0 > +#define PCIE_PHY_CTRL_CAP_ADR_LOC 16 > +#define PCIE_PHY_CTRL_CAP_DAT_LOC 17 > +#define PCIE_PHY_CTRL_WR_LOC 18 > +#define PCIE_PHY_CTRL_RD_LOC 19 > + > +#define PCIE_PHY_STAT (PL_OFFSET + 0x110) > +#define PCIE_PHY_STAT_DATA_LOC 0 > +#define PCIE_PHY_STAT_ACK_LOC 16 > + > +/* PHY registers (not memory-mapped) */ > +#define PCIE_PHY_RX_ASIC_OUT 0x100D > + > +#define PHY_RX_OVRD_IN_LO 0x1005 > +#define PHY_RX_OVRD_IN_LO_RX_DATA_EN (1<<5) > +#define PHY_RX_OVRD_IN_LO_RX_PLL_EN (1<<3) > + > +static int pcie_phy_poll_ack(void __iomem *dbi_base, int exp_val) > +{ > + u32 val; > + u32 max_iterations = 10; > + u32 wait_counter = 0; > + > + do { > + val = readl(dbi_base + PCIE_PHY_STAT); > + val = (val >> PCIE_PHY_STAT_ACK_LOC) & 0x1; > + wait_counter++; > + udelay(1); > + } while ((wait_counter < max_iterations) && (val != exp_val)); > + > + if (val != exp_val) > + return -ETIMEDOUT; > + > + return 0; > +} > + > +static int pcie_phy_wait_ack(void __iomem *dbi_base, int addr) > +{ > + u32 val; > + int ret; > + > + val = addr << PCIE_PHY_CTRL_DATA_LOC; > + writel(val, dbi_base + PCIE_PHY_CTRL); > + > + val |= (0x1 << PCIE_PHY_CTRL_CAP_ADR_LOC); > + writel(val, dbi_base + PCIE_PHY_CTRL); > + > + ret = pcie_phy_poll_ack(dbi_base, 1); > + if (ret) > + return ret; > + > + val = addr << PCIE_PHY_CTRL_DATA_LOC; > + writel(val, dbi_base + PCIE_PHY_CTRL); > + > + ret = pcie_phy_poll_ack(dbi_base, 0); > + if (ret) > + return ret; > + > + return 0; > +} > + > +/* Read from the 16-bit PCIe PHY control registers (not memory-mapped) */ > +static int pcie_phy_read(void __iomem *dbi_base, int addr , int *data) > +{ > + u32 val, phy_ctl; > + int ret; > + > + ret = pcie_phy_wait_ack(dbi_base, addr); > + if (ret) > + return ret; > + > + /* assert Read signal */ > + phy_ctl = 0x1 << PCIE_PHY_CTRL_RD_LOC; > + writel(phy_ctl, dbi_base + PCIE_PHY_CTRL); > + > + ret = pcie_phy_poll_ack(dbi_base, 1); > + if (ret) > + return ret; > + > + val = readl(dbi_base + PCIE_PHY_STAT); > + *data = (val & (0xffff << PCIE_PHY_STAT_DATA_LOC)); > + > + /* deassert Read signal */ > + writel(0x00, dbi_base + PCIE_PHY_CTRL); > + > + ret = pcie_phy_poll_ack(dbi_base, 0); > + if (ret) > + return ret; > + > + return 0; > +} > + > +static int pcie_phy_write(void __iomem *dbi_base, int addr, int data) > +{ > + u32 var; > + int ret; > + > + /* write addr */ > + /* cap addr */ > + ret = pcie_phy_wait_ack(dbi_base, addr); > + if (ret) > + return ret; > + > + var = data << PCIE_PHY_CTRL_DATA_LOC; > + writel(var, dbi_base + PCIE_PHY_CTRL); > + > + /* capture data */ > + var |= (0x1 << PCIE_PHY_CTRL_CAP_DAT_LOC); > + writel(var, dbi_base + PCIE_PHY_CTRL); > + > + ret = pcie_phy_poll_ack(dbi_base, 1); > + if (ret) > + return ret; > + > + /* deassert cap data */ > + var = data << PCIE_PHY_CTRL_DATA_LOC; > + writel(var, dbi_base + PCIE_PHY_CTRL); > + > + /* wait for ack de-assetion */ > + ret = pcie_phy_poll_ack(dbi_base, 0); > + if (ret) > + return ret; > + > + /* assert wr signal */ > + var = 0x1 << PCIE_PHY_CTRL_WR_LOC; > + writel(var, dbi_base + PCIE_PHY_CTRL); > + > + /* wait for ack */ > + ret = pcie_phy_poll_ack(dbi_base, 1); > + if (ret) > + return ret; > + > + /* deassert wr signal */ > + var = data << PCIE_PHY_CTRL_DATA_LOC; > + writel(var, dbi_base + PCIE_PHY_CTRL); > + > + /* wait for ack de-assetion */ > + ret = pcie_phy_poll_ack(dbi_base, 0); > + if (ret) > + return ret; > + > + writel(0x0, dbi_base + PCIE_PHY_CTRL); > + > + return 0; > +} > + > +static int imx6_pcie_assert_core_reset(struct pcie_port *pp) > +{ > + struct imx6_pcie *imx6_pcie = to_imx6_pcie(pp); > + regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR1, > + IMX6Q_GPR1_PCIE_TEST_PD, 1 << 18); > + regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR12, > + IMX6Q_GPR12_PCIE_CTL_2, 1 << 10); > + regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR1, > + IMX6Q_GPR1_PCIE_REF_CLK_EN, 0 << 16); > + > + gpio_set_value(imx6_pcie->reset_gpio, 0); > + msleep(100); > + gpio_set_value(imx6_pcie->reset_gpio, 1); > + > + return 0; > +} > + > +static int imx6_pcie_deassert_core_reset(struct pcie_port *pp) > +{ > + struct imx6_pcie *imx6_pcie = to_imx6_pcie(pp); > + > + if (gpio_is_valid(imx6_pcie->power_on_gpio)) > + gpio_set_value(imx6_pcie->power_on_gpio, 1); > + > + regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR1, > + IMX6Q_GPR1_PCIE_TEST_PD, 0 << 18); > + regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR1, > + IMX6Q_GPR1_PCIE_REF_CLK_EN, 1 << 16); > + > + /* allow the clocks to stabilize */ > + usleep_range(100, 200); > + > + return 0; > +} > + > +static void imx6_pcie_init_phy(struct pcie_port *pp) > +{ > + struct imx6_pcie *imx6_pcie = to_imx6_pcie(pp); > + > + /* FIXME the field name should be aligned to RM */ > + regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR12, > + IMX6Q_GPR12_PCIE_CTL_2, 0 << 10); > + > + /* configure constant input signal to the pcie ctrl and phy */ > + regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR12, > + IMX6Q_GPR12_DEVICE_TYPE, PCI_EXP_TYPE_ROOT_PORT << 12); > + regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR12, > + IMX6Q_GPR12_LOS_LEVEL, 9 << 4); > + > + regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR8, > + IMX6Q_GPR8_TX_DEEMPH_GEN1, 0 << 0); > + regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR8, > + IMX6Q_GPR8_TX_DEEMPH_GEN2_3P5DB, 0 << 6); > + regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR8, > + IMX6Q_GPR8_TX_DEEMPH_GEN2_6DB, 20 << 12); > + regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR8, > + IMX6Q_GPR8_TX_SWING_FULL, 127 << 18); > + regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR8, > + IMX6Q_GPR8_TX_SWING_LOW, 127 << 25); > +} > + > +static void imx6_pcie_host_init(struct pcie_port *pp) > +{ > + int count = 0; > + struct imx6_pcie *imx6_pcie = to_imx6_pcie(pp); > + > + imx6_pcie_assert_core_reset(pp); > + > + imx6_pcie_init_phy(pp); > + > + imx6_pcie_deassert_core_reset(pp); > + > + dw_pcie_setup_rc(pp); > + > + regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR12, > + IMX6Q_GPR12_PCIE_CTL_2, 1 << 10); > + > + while (!dw_pcie_link_up(pp)) { > + usleep_range(100, 1000); > + count++; > + if (count >= 10) { > + dev_err(pp->dev, "phy link never came up\n"); > + dev_dbg(pp->dev,"DEBUG_R0: 0x%08x, DEBUG_R1: 0x%08x\n", > + readl(pp->dbi_base + PCIE_PHY_DEBUG_R0), > + readl(pp->dbi_base + PCIE_PHY_DEBUG_R1)); > + break; > + } > + } > + > + return; > +} > + > +static int imx6_pcie_link_up(struct pcie_port *pp) > +{ > + u32 rc, ltssm, rx_valid, temp; > + > + /* link is debug bit 36, debug register 1 starts at bit 32 */ > + rc = readl(pp->dbi_base + PCIE_PHY_DEBUG_R1) & (0x1 << (36 - 32)); > + if (rc) > + return -EAGAIN; > + > + /* From L0, initiate MAC entry to gen2 if EP/RC supports gen2. > + * Wait 2ms (LTSSM timeout is 24ms, PHY lock is ~5us in gen2). > + * If (MAC/LTSSM.state == Recovery.RcvrLock) > + * && (PHY/rx_valid==0) then pulse PHY/rx_reset. Transition > + * to gen2 is stuck > + */ > + pcie_phy_read(pp->dbi_base, PCIE_PHY_RX_ASIC_OUT, &rx_valid); > + ltssm = readl(pp->dbi_base + PCIE_PHY_DEBUG_R0) & 0x3F; > + > + if (rx_valid & 0x01) > + return 0; > + > + if (ltssm != 0x0d) > + return 0; > + > + dev_err(pp->dev, > + "transition to gen2 is stuck, reset PHY!\n"); > + > + pcie_phy_read(pp->dbi_base, > + PHY_RX_OVRD_IN_LO, &temp); > + temp |= (PHY_RX_OVRD_IN_LO_RX_DATA_EN > + | PHY_RX_OVRD_IN_LO_RX_PLL_EN); > + pcie_phy_write(pp->dbi_base, > + PHY_RX_OVRD_IN_LO, temp); > + > + usleep_range(2000, 3000); > + > + pcie_phy_read(pp->dbi_base, > + PHY_RX_OVRD_IN_LO, &temp); > + temp &= ~(PHY_RX_OVRD_IN_LO_RX_DATA_EN > + | PHY_RX_OVRD_IN_LO_RX_PLL_EN); > + pcie_phy_write(pp->dbi_base, > + PHY_RX_OVRD_IN_LO, temp); > + > + return 0; > +} > + > +static struct pcie_host_ops imx6_pcie_host_ops = { > + .link_up = imx6_pcie_link_up, > + .host_init = imx6_pcie_host_init, > +}; > + > +static int add_pcie_port(struct pcie_port *pp, struct platform_device *pdev) > +{ > + int ret; > + > + pp->irq = platform_get_irq(pdev, 0); > + if (!pp->irq) { > + dev_err(&pdev->dev, "failed to get irq\n"); > + return -ENODEV; > + } > + > + pp->root_bus_nr = -1; > + pp->ops = &imx6_pcie_host_ops; > + > + spin_lock_init(&pp->conf_lock); > + ret = dw_pcie_host_init(pp); > + if (ret) { > + dev_err(&pdev->dev, "failed to initialize host\n"); > + return ret; > + } > + > + return 0; > +} > + > +static int __init imx6_pcie_probe(struct platform_device *pdev) > +{ > + struct imx6_pcie *imx6_pcie; > + struct pcie_port *pp; > + struct device_node *np = pdev->dev.of_node; > + struct resource *dbi_base; > + int ret; > + > + imx6_pcie = devm_kzalloc(&pdev->dev, sizeof(*imx6_pcie), > + GFP_KERNEL); > + if (!imx6_pcie) > + return -ENOMEM; > + > + pp = &imx6_pcie->pp; > + pp->dev = &pdev->dev; > + > + dbi_base = platform_get_resource(pdev, IORESOURCE_MEM, 0); > + if (!dbi_base) { > + dev_err(&pdev->dev, "dbi_base memory resource not found\n"); > + return -ENODEV; > + } > + > + pp->dbi_base = devm_request_and_ioremap(&pdev->dev, dbi_base); > + if (IS_ERR(pp->dbi_base)) { > + dev_err(&pdev->dev, "unable to remap dbi_base\n"); > + ret = PTR_ERR(pp->dbi_base); > + goto err; > + } > + > + /* Fetch GPIOs */ > + imx6_pcie->reset_gpio = of_get_named_gpio(np, "reset-gpio", 0); > + if (gpio_is_valid(imx6_pcie->reset_gpio)) { > + ret = devm_gpio_request_one(&pdev->dev, > + imx6_pcie->reset_gpio, > + GPIOF_OUT_INIT_LOW, > + "PCIe reset"); > + if (ret) { > + dev_err(&pdev->dev, "unable to get reset gpio\n"); > + goto err; > + } > + } > + > + imx6_pcie->power_on_gpio = of_get_named_gpio(np, "power-on-gpio", 0); > + if (gpio_is_valid(imx6_pcie->power_on_gpio)) { > + ret = devm_gpio_request_one(&pdev->dev, > + imx6_pcie->power_on_gpio, > + GPIOF_OUT_INIT_LOW, > + "PCIe power enable"); > + if (ret) { > + dev_err(&pdev->dev, "unable to get power-on gpio\n"); > + goto err; > + } > + } > + > + imx6_pcie->wake_up_gpio = of_get_named_gpio(np, "wake-up-gpio", 0); > + if (gpio_is_valid(imx6_pcie->wake_up_gpio)) { > + ret = devm_gpio_request_one(&pdev->dev, > + imx6_pcie->wake_up_gpio, > + GPIOF_IN, > + "PCIe wake up"); > + if (ret) { > + dev_err(&pdev->dev, "unable to get wake-up gpio\n"); > + goto err; > + } > + } > + > + imx6_pcie->disable_gpio = of_get_named_gpio(np, "disable-gpio", 0); > + if (gpio_is_valid(imx6_pcie->disable_gpio)) { > + ret = devm_gpio_request_one(&pdev->dev, > + imx6_pcie->disable_gpio, > + GPIOF_OUT_INIT_HIGH, > + "PCIe disable endpoint"); > + if (ret) { > + dev_err(&pdev->dev, "unable to get disable-ep gpio\n"); > + goto err; > + } > + } > + > + /* Grab GPR config register range */ > + imx6_pcie->iomuxc_gpr = > + syscon_regmap_lookup_by_compatible("fsl,imx6q-iomuxc-gpr"); > + if (IS_ERR(imx6_pcie->iomuxc_gpr)) { > + dev_err(&pdev->dev, "unable to find iomuxc registers\n"); > + ret = PTR_ERR(imx6_pcie->iomuxc_gpr); > + goto err; > + } > + > + ret = add_pcie_port(pp, pdev); > + if (ret < 0) > + goto err; > + > + platform_set_drvdata(pdev, imx6_pcie); > + return 0; > + > +err: > + return ret; > +} > + > +static const struct of_device_id imx6_pcie_of_match[] = { > + { .compatible = "fsl,imx6-pcie", }, > + {}, > +}; > +MODULE_DEVICE_TABLE(of, imx6_pcie_of_match); > + > +static struct platform_driver imx6_pcie_driver = { > + .driver = { > + .name = "imx6-pcie", > + .owner = THIS_MODULE, > + .of_match_table = of_match_ptr(imx6_pcie_of_match), > + }, > +}; > + > +/* Freescale PCIe driver does not allow module unload */ > + > +static int __init pcie_init(void) > +{ > + return platform_driver_probe(&imx6_pcie_driver, imx6_pcie_probe); > +} > +subsys_initcall(pcie_init); > + > +MODULE_AUTHOR("Sean Cross <xobs@xxxxxxxxxx>"); > +MODULE_DESCRIPTION("Freescale i.MX6 PCIe host controller driver"); > +MODULE_LICENSE("GPL v2"); > -- > 1.7.9.5 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-pci" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html