Merge branch 'master' of git://git.denx.de/u-boot-tegra

50 files changed, 4433 insertions, 44 deletions

diff --git a/README b/README
index 42ece99..604f0fa 100644
--- a/README
+++ b/README
@@ -4016,6 +4016,25 @@ Configuration Settings:
 		boards which do not use the full malloc in SPL (which is
 		enabled with CONFIG_SYS_SPL_MALLOC_START).
 
+- CONFIG_SYS_NONCACHED_MEMORY:
+		Size of non-cached memory area. This area of memory will be
+		typically located right below the malloc() area and mapped
+		uncached in the MMU. This is useful for drivers that would
+		otherwise require a lot of explicit cache maintenance. For
+		some drivers it's also impossible to properly maintain the
+		cache. For example if the regions that need to be flushed
+		are not a multiple of the cache-line size, *and* padding
+		cannot be allocated between the regions to align them (i.e.
+		if the HW requires a contiguous array of regions, and the
+		size of each region is not cache-aligned), then a flush of
+		one region may result in overwriting data that hardware has
+		written to another region in the same cache-line. This can
+		happen for example in network drivers where descriptors for
+		buffers are typically smaller than the CPU cache-line (e.g.
+		16 bytes vs. 32 or 64 bytes).
+
+		Non-cached memory is only supported on 32-bit ARM at present.
+
 - CONFIG_SYS_BOOTM_LEN:
 		Normally compressed uImages are limited to an
 		uncompressed size of 8 MBytes. If this is not enough,
diff --git a/arch/arm/cpu/tegra-common/Makefile b/arch/arm/cpu/tegra-common/Makefile
index a18c318..a78869e 100644
--- a/arch/arm/cpu/tegra-common/Makefile
+++ b/arch/arm/cpu/tegra-common/Makefile
@@ -13,5 +13,7 @@ obj-y += cache.o
 obj-y += clock.o
 obj-y += lowlevel_init.o
 obj-y += pinmux-common.o
+obj-y += powergate.o
+obj-y += xusb-padctl.o
 obj-$(CONFIG_DISPLAY_CPUINFO) += sys_info.o
 obj-$(CONFIG_TEGRA124) += vpr.o
diff --git a/arch/arm/cpu/tegra-common/powergate.c b/arch/arm/cpu/tegra-common/powergate.c
new file mode 100644
index 0000000..439cff3
--- /dev/null
+++ b/arch/arm/cpu/tegra-common/powergate.c
@@ -0,0 +1,102 @@
+/*
+ * Copyright (c) 2014, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * SPDX-License-Identifier: GPL-2.0
+ */
+
+#include <common.h>
+#include <errno.h>
+
+#include <asm/io.h>
+#include <asm/types.h>
+
+#include <asm/arch/powergate.h>
+#include <asm/arch/tegra.h>
+
+#define PWRGATE_TOGGLE 0x30
+#define  PWRGATE_TOGGLE_START (1 << 8)
+
+#define REMOVE_CLAMPING 0x34
+
+#define PWRGATE_STATUS 0x38
+
+static int tegra_powergate_set(enum tegra_powergate id, bool state)
+{
+	u32 value, mask = state ? (1 << id) : 0, old_mask;
+	unsigned long start, timeout = 25;
+
+	value = readl(NV_PA_PMC_BASE + PWRGATE_STATUS);
+	old_mask = value & (1 << id);
+
+	if (mask == old_mask)
+		return 0;
+
+	writel(PWRGATE_TOGGLE_START | id, NV_PA_PMC_BASE + PWRGATE_TOGGLE);
+
+	start = get_timer(0);
+
+	while (get_timer(start) < timeout) {
+		value = readl(NV_PA_PMC_BASE + PWRGATE_STATUS);
+		if ((value & (1 << id)) == mask)
+			return 0;
+	}
+
+	return -ETIMEDOUT;
+}
+
+static int tegra_powergate_power_on(enum tegra_powergate id)
+{
+	return tegra_powergate_set(id, true);
+}
+
+int tegra_powergate_power_off(enum tegra_powergate id)
+{
+	return tegra_powergate_set(id, false);
+}
+
+static int tegra_powergate_remove_clamping(enum tegra_powergate id)
+{
+	unsigned long value;
+
+	/*
+	 * The REMOVE_CLAMPING register has the bits for the PCIE and VDEC
+	 * partitions reversed. This was originally introduced on Tegra20 but
+	 * has since been carried forward for backwards-compatibility.
+	 */
+	if (id == TEGRA_POWERGATE_VDEC)
+		value = 1 << TEGRA_POWERGATE_PCIE;
+	else if (id == TEGRA_POWERGATE_PCIE)
+		value = 1 << TEGRA_POWERGATE_VDEC;
+	else
+		value = 1 << id;
+
+	writel(value, NV_PA_PMC_BASE + REMOVE_CLAMPING);
+
+	return 0;
+}
+
+int tegra_powergate_sequence_power_up(enum tegra_powergate id,
+				      enum periph_id periph)
+{
+	int err;
+
+	reset_set_enable(periph, 1);
+
+	err = tegra_powergate_power_on(id);
+	if (err < 0)
+		return err;
+
+	clock_enable(periph);
+
+	udelay(10);
+
+	err = tegra_powergate_remove_clamping(id);
+	if (err < 0)
+		return err;
+
+	udelay(10);
+
+	reset_set_enable(periph, 0);
+
+	return 0;
+}
diff --git a/arch/arm/cpu/tegra-common/xusb-padctl.c b/arch/arm/cpu/tegra-common/xusb-padctl.c
new file mode 100644
index 0000000..65f8d2e
--- /dev/null
+++ b/arch/arm/cpu/tegra-common/xusb-padctl.c
@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2014, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * SPDX-License-Identifier: GPL-2.0
+ */
+
+#include <common.h>
+#include <errno.h>
+
+#include <asm/arch-tegra/xusb-padctl.h>
+
+struct tegra_xusb_phy * __weak tegra_xusb_phy_get(unsigned int type)
+{
+	return NULL;
+}
+
+int __weak tegra_xusb_phy_prepare(struct tegra_xusb_phy *phy)
+{
+	return -ENOSYS;
+}
+
+int __weak tegra_xusb_phy_enable(struct tegra_xusb_phy *phy)
+{
+	return -ENOSYS;
+}
+
+int __weak tegra_xusb_phy_disable(struct tegra_xusb_phy *phy)
+{
+	return -ENOSYS;
+}
+
+int __weak tegra_xusb_phy_unprepare(struct tegra_xusb_phy *phy)
+{
+	return -ENOSYS;
+}
+
+void __weak tegra_xusb_padctl_init(const void *fdt)
+{
+}
diff --git a/arch/arm/cpu/tegra124-common/Makefile b/arch/arm/cpu/tegra124-common/Makefile
index ff77992..7b59fb1 100644
--- a/arch/arm/cpu/tegra124-common/Makefile
+++ b/arch/arm/cpu/tegra124-common/Makefile
@@ -8,3 +8,4 @@
 obj-y	+= clock.o
 obj-y	+= funcmux.o
 obj-y	+= pinmux.o
+obj-y	+= xusb-padctl.o
diff --git a/arch/arm/cpu/tegra124-common/clock.c b/arch/arm/cpu/tegra124-common/clock.c
index 7394363..fc8bd19 100644
--- a/arch/arm/cpu/tegra124-common/clock.c
+++ b/arch/arm/cpu/tegra124-common/clock.c
@@ -824,3 +824,112 @@ void arch_timer_init(void)
 	writel(val, &sysctr->cntcr);
 	debug("%s: TSC CNTCR = 0x%08X\n", __func__, val);
 }
+
+#define PLLE_SS_CNTL 0x68
+#define  PLLE_SS_CNTL_SSCINCINTR(x) (((x) & 0x3f) << 24)
+#define  PLLE_SS_CNTL_SSCINC(x) (((x) & 0xff) << 16)
+#define  PLLE_SS_CNTL_SSCINVERT (1 << 15)
+#define  PLLE_SS_CNTL_SSCCENTER (1 << 14)
+#define  PLLE_SS_CNTL_SSCBYP (1 << 12)
+#define  PLLE_SS_CNTL_INTERP_RESET (1 << 11)
+#define  PLLE_SS_CNTL_BYPASS_SS (1 << 10)
+#define  PLLE_SS_CNTL_SSCMAX(x) (((x) & 0x1ff) << 0)
+
+#define PLLE_BASE 0x0e8
+#define  PLLE_BASE_ENABLE (1 << 30)
+#define  PLLE_BASE_LOCK_OVERRIDE (1 << 29)
+#define  PLLE_BASE_PLDIV_CML(x) (((x) & 0xf) << 24)
+#define  PLLE_BASE_NDIV(x) (((x) & 0xff) << 8)
+#define  PLLE_BASE_MDIV(x) (((x) & 0xff) << 0)
+
+#define PLLE_MISC 0x0ec
+#define  PLLE_MISC_IDDQ_SWCTL (1 << 14)
+#define  PLLE_MISC_IDDQ_OVERRIDE (1 << 13)
+#define  PLLE_MISC_LOCK_ENABLE (1 << 9)
+#define  PLLE_MISC_PTS (1 << 8)
+#define  PLLE_MISC_VREG_BG_CTRL(x) (((x) & 0x3) << 4)
+#define  PLLE_MISC_VREG_CTRL(x) (((x) & 0x3) << 2)
+
+#define PLLE_AUX 0x48c
+#define  PLLE_AUX_SEQ_ENABLE (1 << 24)
+#define  PLLE_AUX_ENABLE_SWCTL (1 << 4)
+
+int tegra_plle_enable(void)
+{
+	unsigned int m = 1, n = 200, cpcon = 13;
+	u32 value;
+
+	value = readl(NV_PA_CLK_RST_BASE + PLLE_BASE);
+	value &= ~PLLE_BASE_LOCK_OVERRIDE;
+	writel(value, NV_PA_CLK_RST_BASE + PLLE_BASE);
+
+	value = readl(NV_PA_CLK_RST_BASE + PLLE_AUX);
+	value |= PLLE_AUX_ENABLE_SWCTL;
+	value &= ~PLLE_AUX_SEQ_ENABLE;
+	writel(value, NV_PA_CLK_RST_BASE + PLLE_AUX);
+
+	udelay(1);
+
+	value = readl(NV_PA_CLK_RST_BASE + PLLE_MISC);
+	value |= PLLE_MISC_IDDQ_SWCTL;
+	value &= ~PLLE_MISC_IDDQ_OVERRIDE;
+	value |= PLLE_MISC_LOCK_ENABLE;
+	value |= PLLE_MISC_PTS;
+	value |= PLLE_MISC_VREG_BG_CTRL(3);
+	value |= PLLE_MISC_VREG_CTRL(2);
+	writel(value, NV_PA_CLK_RST_BASE + PLLE_MISC);
+
+	udelay(5);
+
+	value = readl(NV_PA_CLK_RST_BASE + PLLE_SS_CNTL);
+	value |= PLLE_SS_CNTL_SSCBYP | PLLE_SS_CNTL_INTERP_RESET |
+		 PLLE_SS_CNTL_BYPASS_SS;
+	writel(value, NV_PA_CLK_RST_BASE + PLLE_SS_CNTL);
+
+	value = readl(NV_PA_CLK_RST_BASE + PLLE_BASE);
+	value &= ~PLLE_BASE_PLDIV_CML(0xf);
+	value &= ~PLLE_BASE_NDIV(0xff);
+	value &= ~PLLE_BASE_MDIV(0xff);
+	value |= PLLE_BASE_PLDIV_CML(cpcon);
+	value |= PLLE_BASE_NDIV(n);
+	value |= PLLE_BASE_MDIV(m);
+	writel(value, NV_PA_CLK_RST_BASE + PLLE_BASE);
+
+	udelay(1);
+
+	value = readl(NV_PA_CLK_RST_BASE + PLLE_BASE);
+	value |= PLLE_BASE_ENABLE;
+	writel(value, NV_PA_CLK_RST_BASE + PLLE_BASE);
+
+	/* wait for lock */
+	udelay(300);
+
+	value = readl(NV_PA_CLK_RST_BASE + PLLE_SS_CNTL);
+	value &= ~PLLE_SS_CNTL_SSCINVERT;
+	value &= ~PLLE_SS_CNTL_SSCCENTER;
+
+	value &= ~PLLE_SS_CNTL_SSCINCINTR(0x3f);
+	value &= ~PLLE_SS_CNTL_SSCINC(0xff);
+	value &= ~PLLE_SS_CNTL_SSCMAX(0x1ff);
+
+	value |= PLLE_SS_CNTL_SSCINCINTR(0x20);
+	value |= PLLE_SS_CNTL_SSCINC(0x01);
+	value |= PLLE_SS_CNTL_SSCMAX(0x25);
+
+	writel(value, NV_PA_CLK_RST_BASE + PLLE_SS_CNTL);
+
+	value = readl(NV_PA_CLK_RST_BASE + PLLE_SS_CNTL);
+	value &= ~PLLE_SS_CNTL_SSCBYP;
+	value &= ~PLLE_SS_CNTL_BYPASS_SS;
+	writel(value, NV_PA_CLK_RST_BASE + PLLE_SS_CNTL);
+
+	udelay(1);
+
+	value = readl(NV_PA_CLK_RST_BASE + PLLE_SS_CNTL);
+	value &= ~PLLE_SS_CNTL_INTERP_RESET;
+	writel(value, NV_PA_CLK_RST_BASE + PLLE_SS_CNTL);
+
+	udelay(1);
+
+	return 0;
+}
diff --git a/arch/arm/cpu/tegra124-common/xusb-padctl.c b/arch/arm/cpu/tegra124-common/xusb-padctl.c
new file mode 100644
index 0000000..43af883
--- /dev/null
+++ b/arch/arm/cpu/tegra124-common/xusb-padctl.c
@@ -0,0 +1,716 @@
+/*
+ * Copyright (c) 2014, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * SPDX-License-Identifier: GPL-2.0
+ */
+
+#define pr_fmt(fmt) "tegra-xusb-padctl: " fmt
+
+#include <common.h>
+#include <errno.h>
+#include <fdtdec.h>
+#include <malloc.h>
+
+#include <asm/io.h>
+
+#include <asm/arch/clock.h>
+#include <asm/arch-tegra/xusb-padctl.h>
+
+#include <dt-bindings/pinctrl/pinctrl-tegra-xusb.h>
+
+#define XUSB_PADCTL_ELPG_PROGRAM 0x01c
+#define XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_VCORE_DOWN (1 << 26)
+#define XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_CLAMP_EN_EARLY (1 << 25)
+#define XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_CLAMP_EN (1 << 24)
+
+#define XUSB_PADCTL_IOPHY_PLL_P0_CTL1 0x040
+#define XUSB_PADCTL_IOPHY_PLL_P0_CTL1_PLL0_LOCKDET (1 << 19)
+#define XUSB_PADCTL_IOPHY_PLL_P0_CTL1_REFCLK_SEL_MASK (0xf << 12)
+#define XUSB_PADCTL_IOPHY_PLL_P0_CTL1_PLL_RST (1 << 1)
+
+#define XUSB_PADCTL_IOPHY_PLL_P0_CTL2 0x044
+#define XUSB_PADCTL_IOPHY_PLL_P0_CTL2_REFCLKBUF_EN (1 << 6)
+#define XUSB_PADCTL_IOPHY_PLL_P0_CTL2_TXCLKREF_EN (1 << 5)
+#define XUSB_PADCTL_IOPHY_PLL_P0_CTL2_TXCLKREF_SEL (1 << 4)
+
+#define XUSB_PADCTL_IOPHY_PLL_S0_CTL1 0x138
+#define XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL1_LOCKDET (1 << 27)
+#define XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL1_MODE (1 << 24)
+#define XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL_PWR_OVRD (1 << 3)
+#define XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL_RST (1 << 1)
+#define XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL_IDDQ (1 << 0)
+
+#define XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1 0x148
+#define XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1_IDDQ_OVRD (1 << 1)
+#define XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1_IDDQ (1 << 0)
+
+enum tegra124_function {
+	TEGRA124_FUNC_SNPS,
+	TEGRA124_FUNC_XUSB,
+	TEGRA124_FUNC_UART,
+	TEGRA124_FUNC_PCIE,
+	TEGRA124_FUNC_USB3,
+	TEGRA124_FUNC_SATA,
+	TEGRA124_FUNC_RSVD,
+};
+
+static const char *const tegra124_functions[] = {
+	"snps",
+	"xusb",
+	"uart",
+	"pcie",
+	"usb3",
+	"sata",
+	"rsvd",
+};
+
+static const unsigned int tegra124_otg_functions[] = {
+	TEGRA124_FUNC_SNPS,
+	TEGRA124_FUNC_XUSB,
+	TEGRA124_FUNC_UART,
+	TEGRA124_FUNC_RSVD,
+};
+
+static const unsigned int tegra124_usb_functions[] = {
+	TEGRA124_FUNC_SNPS,
+	TEGRA124_FUNC_XUSB,
+};
+
+static const unsigned int tegra124_pci_functions[] = {
+	TEGRA124_FUNC_PCIE,
+	TEGRA124_FUNC_USB3,
+	TEGRA124_FUNC_SATA,
+	TEGRA124_FUNC_RSVD,
+};
+
+struct tegra_xusb_padctl_lane {
+	const char *name;
+
+	unsigned int offset;
+	unsigned int shift;
+	unsigned int mask;
+	unsigned int iddq;
+
+	const unsigned int *funcs;
+	unsigned int num_funcs;
+};
+
+#define TEGRA124_LANE(_name, _offset, _shift, _mask, _iddq, _funcs)	\
+	{								\
+		.name = _name,						\
+		.offset = _offset,					\
+		.shift = _shift,					\
+		.mask = _mask,						\
+		.iddq = _iddq,						\
+		.num_funcs = ARRAY_SIZE(tegra124_##_funcs##_functions),	\
+		.funcs = tegra124_##_funcs##_functions,			\
+	}
+
+static const struct tegra_xusb_padctl_lane tegra124_lanes[] = {
+	TEGRA124_LANE("otg-0",  0x004,  0, 0x3, 0, otg),
+	TEGRA124_LANE("otg-1",  0x004,  2, 0x3, 0, otg),
+	TEGRA124_LANE("otg-2",  0x004,  4, 0x3, 0, otg),
+	TEGRA124_LANE("ulpi-0", 0x004, 12, 0x1, 0, usb),
+	TEGRA124_LANE("hsic-0", 0x004, 14, 0x1, 0, usb),
+	TEGRA124_LANE("hsic-1", 0x004, 15, 0x1, 0, usb),
+	TEGRA124_LANE("pcie-0", 0x134, 16, 0x3, 1, pci),
+	TEGRA124_LANE("pcie-1", 0x134, 18, 0x3, 2, pci),
+	TEGRA124_LANE("pcie-2", 0x134, 20, 0x3, 3, pci),
+	TEGRA124_LANE("pcie-3", 0x134, 22, 0x3, 4, pci),
+	TEGRA124_LANE("pcie-4", 0x134, 24, 0x3, 5, pci),
+	TEGRA124_LANE("sata-0", 0x134, 26, 0x3, 6, pci),
+};
+
+struct tegra_xusb_phy_ops {
+	int (*prepare)(struct tegra_xusb_phy *phy);
+	int (*enable)(struct tegra_xusb_phy *phy);
+	int (*disable)(struct tegra_xusb_phy *phy);
+	int (*unprepare)(struct tegra_xusb_phy *phy);
+};
+
+struct tegra_xusb_phy {
+	const struct tegra_xusb_phy_ops *ops;
+
+	struct tegra_xusb_padctl *padctl;
+};
+
+struct tegra_xusb_padctl_pin {
+	const struct tegra_xusb_padctl_lane *lane;
+
+	unsigned int func;
+	int iddq;
+};
+
+#define MAX_GROUPS 3
+#define MAX_PINS 6
+
+struct tegra_xusb_padctl_group {
+	const char *name;
+
+	const char *pins[MAX_PINS];
+	unsigned int num_pins;
+
+	const char *func;
+	int iddq;
+};
+
+struct tegra_xusb_padctl_config {
+	const char *name;
+
+	struct tegra_xusb_padctl_group groups[MAX_GROUPS];
+	unsigned int num_groups;
+};
+
+struct tegra_xusb_padctl {
+	struct fdt_resource regs;
+
+	unsigned int enable;
+
+	struct tegra_xusb_phy phys[2];
+
+	const struct tegra_xusb_padctl_lane *lanes;
+	unsigned int num_lanes;
+
+	const char *const *functions;
+	unsigned int num_functions;
+
+	struct tegra_xusb_padctl_config config;
+};
+
+static inline u32 padctl_readl(struct tegra_xusb_padctl *padctl,
+			       unsigned long offset)
+{
+	return readl(padctl->regs.start + offset);
+}
+
+static inline void padctl_writel(struct tegra_xusb_padctl *padctl,
+				 u32 value, unsigned long offset)
+{
+	writel(value, padctl->regs.start + offset);
+}
+
+static int tegra_xusb_padctl_enable(struct tegra_xusb_padctl *padctl)
+{
+	u32 value;
+
+	if (padctl->enable++ > 0)
+		return 0;
+
+	value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
+	value &= ~XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_CLAMP_EN;
+	padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
+
+	udelay(100);
+
+	value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
+	value &= ~XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_CLAMP_EN_EARLY;
+	padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
+
+	udelay(100);
+
+	value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
+	value &= ~XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_VCORE_DOWN;
+	padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
+
+	return 0;
+}
+
+static int tegra_xusb_padctl_disable(struct tegra_xusb_padctl *padctl)
+{
+	u32 value;
+
+	if (padctl->enable == 0) {
+		error("tegra-xusb-padctl: unbalanced enable/disable");
+		return 0;
+	}
+
+	if (--padctl->enable > 0)
+		return 0;
+
+	value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
+	value |= XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_VCORE_DOWN;
+	padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
+
+	udelay(100);
+
+	value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
+	value |= XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_CLAMP_EN_EARLY;
+	padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
+
+	udelay(100);
+
+	value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
+	value |= XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_CLAMP_EN;
+	padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
+
+	return 0;
+}
+
+static int phy_prepare(struct tegra_xusb_phy *phy)
+{
+	return tegra_xusb_padctl_enable(phy->padctl);
+}
+
+static int phy_unprepare(struct tegra_xusb_phy *phy)
+{
+	return tegra_xusb_padctl_disable(phy->padctl);
+}
+
+static int pcie_phy_enable(struct tegra_xusb_phy *phy)
+{
+	struct tegra_xusb_padctl *padctl = phy->padctl;
+	int err = -ETIMEDOUT;
+	unsigned long start;
+	u32 value;
+
+	value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_P0_CTL1);
+	value &= ~XUSB_PADCTL_IOPHY_PLL_P0_CTL1_REFCLK_SEL_MASK;
+	padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_P0_CTL1);
+
+	value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_P0_CTL2);
+	value |= XUSB_PADCTL_IOPHY_PLL_P0_CTL2_REFCLKBUF_EN |
+		 XUSB_PADCTL_IOPHY_PLL_P0_CTL2_TXCLKREF_EN |
+		 XUSB_PADCTL_IOPHY_PLL_P0_CTL2_TXCLKREF_SEL;
+	padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_P0_CTL2);
+
+	value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_P0_CTL1);
+	value |= XUSB_PADCTL_IOPHY_PLL_P0_CTL1_PLL_RST;
+	padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_P0_CTL1);
+
+	start = get_timer(0);
+
+	while (get_timer(start) < 50) {
+		value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_P0_CTL1);
+		if (value & XUSB_PADCTL_IOPHY_PLL_P0_CTL1_PLL0_LOCKDET) {
+			err = 0;
+			break;
+		}
+	}
+
+	return err;
+}
+
+static int pcie_phy_disable(struct tegra_xusb_phy *phy)
+{
+	struct tegra_xusb_padctl *padctl = phy->padctl;
+	u32 value;
+
+	value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_P0_CTL1);
+	value &= ~XUSB_PADCTL_IOPHY_PLL_P0_CTL1_PLL_RST;
+	padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_P0_CTL1);
+
+	return 0;
+}
+
+static int sata_phy_enable(struct tegra_xusb_phy *phy)
+{
+	struct tegra_xusb_padctl *padctl = phy->padctl;
+	int err = -ETIMEDOUT;
+	unsigned long start;
+	u32 value;
+
+	value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1);
+	value &= ~XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1_IDDQ_OVRD;
+	value &= ~XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1_IDDQ;
+	padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1);
+
+	value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);
+	value &= ~XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL_PWR_OVRD;
+	value &= ~XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL_IDDQ;
+	padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);
+
+	value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);
+	value |= XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL1_MODE;
+	padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);
+
+	value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);
+	value |= XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL_RST;
+	padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);
+
+	start = get_timer(0);
+
+	while (get_timer(start) < 50) {
+		value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);
+		if (value & XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL1_LOCKDET) {
+			err = 0;
+			break;
+		}
+	}
+
+	return err;
+}
+
+static int sata_phy_disable(struct tegra_xusb_phy *phy)
+{
+	struct tegra_xusb_padctl *padctl = phy->padctl;
+	u32 value;
+
+	value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);
+	value &= ~XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL_RST;
+	padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);
+
+	value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);
+	value &= ~XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL1_MODE;
+	padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);
+
+	value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);
+	value |= XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL_PWR_OVRD;
+	value |= XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL_IDDQ;
+	padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);
+
+	value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1);
+	value |= ~XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1_IDDQ_OVRD;
+	value |= ~XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1_IDDQ;
+	padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1);
+
+	return 0;
+}
+
+static const struct tegra_xusb_phy_ops pcie_phy_ops = {
+	.prepare = phy_prepare,
+	.enable = pcie_phy_enable,
+	.disable = pcie_phy_disable,
+	.unprepare = phy_unprepare,
+};
+
+static const struct tegra_xusb_phy_ops sata_phy_ops = {
+	.prepare = phy_prepare,
+	.enable = sata_phy_enable,
+	.disable = sata_phy_disable,
+	.unprepare = phy_unprepare,
+};
+
+static struct tegra_xusb_padctl *padctl = &(struct tegra_xusb_padctl) {
+	.phys = {
+		[0] = {
+			.ops = &pcie_phy_ops,
+		},
+		[1] = {
+			.ops = &sata_phy_ops,
+		},
+	},
+};
+
+static const struct tegra_xusb_padctl_lane *
+tegra_xusb_padctl_find_lane(struct tegra_xusb_padctl *padctl, const char *name)
+{
+	unsigned int i;
+
+	for (i = 0; i < padctl->num_lanes; i++)
+		if (strcmp(name, padctl->lanes[i].name) == 0)
+			return &padctl->lanes[i];
+
+	return NULL;
+}
+
+static int
+tegra_xusb_padctl_group_parse_dt(struct tegra_xusb_padctl *padctl,
+				 struct tegra_xusb_padctl_group *group,
+				 const void *fdt, int node)
+{
+	unsigned int i;
+	int len, err;
+
+	group->name = fdt_get_name(fdt, node, &len);
+
+	len = fdt_count_strings(fdt, node, "nvidia,lanes");
+	if (len < 0) {
+		error("tegra-xusb-padctl: failed to parse \"nvidia,lanes\" property");
+		return -EINVAL;
+	}
+
+	group->num_pins = len;
+
+	for (i = 0; i < group->num_pins; i++) {
+		err = fdt_get_string_index(fdt, node, "nvidia,lanes", i,
+					   &group->pins[i]);
+		if (err < 0) {
+			error("tegra-xusb-padctl: failed to read string from \"nvidia,lanes\" property");
+			return -EINVAL;
+		}
+	}
+
+	group->num_pins = len;
+
+	err = fdt_get_string(fdt, node, "nvidia,function", &group->func);
+	if (err < 0) {
+		error("tegra-xusb-padctl: failed to parse \"nvidia,func\" property");
+		return -EINVAL;
+	}
+
+	group->iddq = fdtdec_get_int(fdt, node, "nvidia,iddq", -1);
+
+	return 0;
+}
+
+static int tegra_xusb_padctl_find_function(struct tegra_xusb_padctl *padctl,
+					   const char *name)
+{
+	unsigned int i;
+
+	for (i = 0; i < padctl->num_functions; i++)
+		if (strcmp(name, padctl->functions[i]) == 0)
+			return i;
+
+	return -ENOENT;
+}
+
+static int
+tegra_xusb_padctl_lane_find_function(struct tegra_xusb_padctl *padctl,
+				     const struct tegra_xusb_padctl_lane *lane,
+				     const char *name)
+{
+	unsigned int i;
+	int func;
+
+	func = tegra_xusb_padctl_find_function(padctl, name);
+	if (func < 0)
+		return func;
+
+	for (i = 0; i < lane->num_funcs; i++)
+		if (lane->funcs[i] == func)
+			return i;
+
+	return -ENOENT;
+}
+
+static int
+tegra_xusb_padctl_group_apply(struct tegra_xusb_padctl *padctl,
+			      const struct tegra_xusb_padctl_group *group)
+{
+	unsigned int i;
+
+	for (i = 0; i < group->num_pins; i++) {
+		const struct tegra_xusb_padctl_lane *lane;
+		unsigned int func;
+		u32 value;
+
+		lane = tegra_xusb_padctl_find_lane(padctl, group->pins[i]);
+		if (!lane) {
+			error("tegra-xusb-padctl: no lane for pin %s",
+			      group->pins[i]);
+			continue;
+		}
+
+		func = tegra_xusb_padctl_lane_find_function(padctl, lane,
+							    group->func);
+		if (func < 0) {
+			error("tegra-xusb-padctl: function %s invalid for lane %s: %d",
+			      group->func, lane->name, func);
+			continue;
+		}
+
+		value = padctl_readl(padctl, lane->offset);
+
+		/* set pin function */
+		value &= ~(lane->mask << lane->shift);
+		value |= func << lane->shift;
+
+		/*
+		 * Set IDDQ if supported on the lane and specified in the
+		 * configuration.
+		 */
+		if (lane->iddq > 0 && group->iddq >= 0) {
+			if (group->iddq != 0)
+				value &= ~(1 << lane->iddq);
+			else
+				value |= 1 << lane->iddq;
+		}
+
+		padctl_writel(padctl, value, lane->offset);
+	}
+
+	return 0;
+}
+
+static int
+tegra_xusb_padctl_config_apply(struct tegra_xusb_padctl *padctl,
+			       struct tegra_xusb_padctl_config *config)
+{
+	unsigned int i;
+
+	for (i = 0; i < config->num_groups; i++) {
+		const struct tegra_xusb_padctl_group *group;
+		int err;
+
+		group = &config->groups[i];
+
+		err = tegra_xusb_padctl_group_apply(padctl, group);
+		if (err < 0) {
+			error("tegra-xusb-padctl: failed to apply group %s: %d",
+			      group->name, err);
+			continue;
+		}
+	}
+
+	return 0;
+}
+
+static int
+tegra_xusb_padctl_config_parse_dt(struct tegra_xusb_padctl *padctl,
+				  struct tegra_xusb_padctl_config *config,
+				  const void *fdt, int node)
+{
+	int subnode;
+
+	config->name = fdt_get_name(fdt, node, NULL);
+
+	fdt_for_each_subnode(fdt, subnode, node) {
+		struct tegra_xusb_padctl_group *group;
+		int err;
+
+		group = &config->groups[config->num_groups];
+
+		err = tegra_xusb_padctl_group_parse_dt(padctl, group, fdt,
+						       subnode);
+		if (err < 0) {
+			error("tegra-xusb-padctl: failed to parse group %s",
+			      group->name);
+			return err;
+		}
+
+		config->num_groups++;
+	}
+
+	return 0;
+}
+
+static int tegra_xusb_padctl_parse_dt(struct tegra_xusb_padctl *padctl,
+				      const void *fdt, int node)
+{
+	int subnode, err;
+
+	err = fdt_get_resource(fdt, node, "reg", 0, &padctl->regs);
+	if (err < 0) {
+		error("tegra-xusb-padctl: registers not found");
+		return err;
+	}
+
+	fdt_for_each_subnode(fdt, subnode, node) {
+		struct tegra_xusb_padctl_config *config = &padctl->config;
+
+		err = tegra_xusb_padctl_config_parse_dt(padctl, config, fdt,
+							subnode);
+		if (err < 0) {
+			error("tegra-xusb-padctl: failed to parse entry %s: %d",
+			      config->name, err);
+			continue;
+		}
+	}
+
+	return 0;
+}
+
+static int process_nodes(const void *fdt, int nodes[], unsigned int count)
+{
+	unsigned int i;
+
+	for (i = 0; i < count; i++) {
+		enum fdt_compat_id id;
+		int err;
+
+		if (!fdtdec_get_is_enabled(fdt, nodes[i]))
+			continue;
+
+		id = fdtdec_lookup(fdt, nodes[i]);
+		switch (id) {
+		case COMPAT_NVIDIA_TEGRA124_XUSB_PADCTL:
+			break;
+
+		default:
+			error("tegra-xusb-padctl: unsupported compatible: %s",
+			      fdtdec_get_compatible(id));
+			continue;
+		}
+
+		padctl->num_lanes = ARRAY_SIZE(tegra124_lanes);
+		padctl->lanes = tegra124_lanes;
+
+		padctl->num_functions = ARRAY_SIZE(tegra124_functions);
+		padctl->functions = tegra124_functions;
+
+		err = tegra_xusb_padctl_parse_dt(padctl, fdt, nodes[i]);
+		if (err < 0) {
+			error("tegra-xusb-padctl: failed to parse DT: %d",
+			      err);
+			continue;
+		}
+
+		/* deassert XUSB padctl reset */
+		reset_set_enable(PERIPH_ID_XUSB_PADCTL, 0);
+
+		err = tegra_xusb_padctl_config_apply(padctl, &padctl->config);
+		if (err < 0) {
+			error("tegra-xusb-padctl: failed to apply pinmux: %d",
+			      err);
+			continue;
+		}
+
+		/* only a single instance is supported */
+		break;
+	}
+
+	return 0;
+}
+
+struct tegra_xusb_phy *tegra_xusb_phy_get(unsigned int type)
+{
+	struct tegra_xusb_phy *phy = NULL;
+
+	switch (type) {
+	case TEGRA_XUSB_PADCTL_PCIE:
+		phy = &padctl->phys[0];
+		phy->padctl = padctl;
+		break;
+
+	case TEGRA_XUSB_PADCTL_SATA:
+		phy = &padctl->phys[1];
+		phy->padctl = padctl;
+		break;
+	}
+
+	return phy;
+}
+
+int tegra_xusb_phy_prepare(struct tegra_xusb_phy *phy)
+{
+	if (phy && phy->ops && phy->ops->prepare)
+		return phy->ops->prepare(phy);
+
+	return phy ? -ENOSYS : -EINVAL;
+}
+
+int tegra_xusb_phy_enable(struct tegra_xusb_phy *phy)
+{
+	if (phy && phy->ops && phy->ops->enable)
+		return phy->ops->enable(phy);
+
+	return phy ? -ENOSYS : -EINVAL;
+}
+
+int tegra_xusb_phy_disable(struct tegra_xusb_phy *phy)
+{
+	if (phy && phy->ops && phy->ops->disable)
+		return phy->ops->disable(phy);
+
+	return phy ? -ENOSYS : -EINVAL;
+}
+
+int tegra_xusb_phy_unprepare(struct tegra_xusb_phy *phy)
+{
+	if (phy && phy->ops && phy->ops->unprepare)
+		return phy->ops->unprepare(phy);
+
+	return phy ? -ENOSYS : -EINVAL;
+}
+
+void tegra_xusb_padctl_init(const void *fdt)
+{
+	int count, nodes[1];
+
+	count = fdtdec_find_aliases_for_id(fdt, "padctl",
+					   COMPAT_NVIDIA_TEGRA124_XUSB_PADCTL,
+					   nodes, ARRAY_SIZE(nodes));
+	if (process_nodes(fdt, nodes, count))
+		return;
+}
diff --git a/arch/arm/cpu/tegra20-common/clock.c b/arch/arm/cpu/tegra20-common/clock.c
index 0c4f5fb..7b9e10c 100644
--- a/arch/arm/cpu/tegra20-common/clock.c
+++ b/arch/arm/cpu/tegra20-common/clock.c
@@ -7,6 +7,7 @@
 /* Tegra20 Clock control functions */
 
 #include <common.h>
+#include <errno.h>
 #include <asm/io.h>
 #include <asm/arch/clock.h>
 #include <asm/arch/tegra.h>
@@ -332,7 +333,7 @@ static s8 periph_id_to_internal_id[PERIPH_ID_COUNT] = {
 	/* 0x48 */
 	NONE(AFI),
 	NONE(CORESIGHT),
-	NONE(RESERVED74),
+	NONE(PCIEXCLK),
 	NONE(AVPUCQ),
 	NONE(RESERVED76),
 	NONE(RESERVED77),
@@ -494,7 +495,7 @@ enum periph_id clk_id_to_periph_id(int clk_id)
 	case PERIPH_ID_RESERVED30:
 	case PERIPH_ID_RESERVED35:
 	case PERIPH_ID_RESERVED56:
-	case PERIPH_ID_RESERVED74:
+	case PERIPH_ID_PCIEXCLK:
 	case PERIPH_ID_RESERVED76:
 	case PERIPH_ID_RESERVED77:
 	case PERIPH_ID_RESERVED78:
@@ -548,3 +549,139 @@ void clock_early_init(void)
 void arch_timer_init(void)
 {
 }
+
+#define PMC_SATA_PWRGT 0x1ac
+#define  PMC_SATA_PWRGT_PLLE_IDDQ_OVERRIDE (1 << 5)
+#define  PMC_SATA_PWRGT_PLLE_IDDQ_SWCTL (1 << 4)
+
+#define PLLE_SS_CNTL 0x68
+#define  PLLE_SS_CNTL_SSCINCINTRV(x) (((x) & 0x3f) << 24)
+#define  PLLE_SS_CNTL_SSCINC(x) (((x) & 0xff) << 16)
+#define  PLLE_SS_CNTL_SSCBYP (1 << 12)
+#define  PLLE_SS_CNTL_INTERP_RESET (1 << 11)
+#define  PLLE_SS_CNTL_BYPASS_SS (1 << 10)
+#define  PLLE_SS_CNTL_SSCMAX(x) (((x) & 0x1ff) << 0)
+
+#define PLLE_BASE 0x0e8
+#define  PLLE_BASE_ENABLE_CML (1 << 31)
+#define  PLLE_BASE_ENABLE (1 << 30)
+#define  PLLE_BASE_PLDIV_CML(x) (((x) & 0xf) << 24)
+#define  PLLE_BASE_PLDIV(x) (((x) & 0x3f) << 16)
+#define  PLLE_BASE_NDIV(x) (((x) & 0xff) << 8)
+#define  PLLE_BASE_MDIV(x) (((x) & 0xff) << 0)
+
+#define PLLE_MISC 0x0ec
+#define  PLLE_MISC_SETUP_BASE(x) (((x) & 0xffff) << 16)
+#define  PLLE_MISC_PLL_READY (1 << 15)
+#define  PLLE_MISC_LOCK (1 << 11)
+#define  PLLE_MISC_LOCK_ENABLE (1 << 9)
+#define  PLLE_MISC_SETUP_EXT(x) (((x) & 0x3) << 2)
+
+static int tegra_plle_train(void)
+{
+	unsigned int timeout = 2000;
+	unsigned long value;
+
+	value = readl(NV_PA_PMC_BASE + PMC_SATA_PWRGT);
+	value |= PMC_SATA_PWRGT_PLLE_IDDQ_OVERRIDE;
+	writel(value, NV_PA_PMC_BASE + PMC_SATA_PWRGT);
+
+	value = readl(NV_PA_PMC_BASE + PMC_SATA_PWRGT);
+	value |= PMC_SATA_PWRGT_PLLE_IDDQ_SWCTL;
+	writel(value, NV_PA_PMC_BASE + PMC_SATA_PWRGT);
+
+	value = readl(NV_PA_PMC_BASE + PMC_SATA_PWRGT);
+	value &= ~PMC_SATA_PWRGT_PLLE_IDDQ_OVERRIDE;
+	writel(value, NV_PA_PMC_BASE + PMC_SATA_PWRGT);
+
+	do {
+		value = readl(NV_PA_CLK_RST_BASE + PLLE_MISC);
+		if (value & PLLE_MISC_PLL_READY)
+			break;
+
+		udelay(100);
+	} while (--timeout);
+
+	if (timeout == 0) {
+		error("timeout waiting for PLLE to become ready");
+		return -ETIMEDOUT;
+	}
+
+	return 0;
+}
+
+int tegra_plle_enable(void)
+{
+	unsigned int timeout = 1000;
+	u32 value;
+	int err;
+
+	/* disable PLLE clock */
+	value = readl(NV_PA_CLK_RST_BASE + PLLE_BASE);
+	value &= ~PLLE_BASE_ENABLE_CML;
+	value &= ~PLLE_BASE_ENABLE;
+	writel(value, NV_PA_CLK_RST_BASE + PLLE_BASE);
+
+	/* clear lock enable and setup field */
+	value = readl(NV_PA_CLK_RST_BASE + PLLE_MISC);
+	value &= ~PLLE_MISC_LOCK_ENABLE;
+	value &= ~PLLE_MISC_SETUP_BASE(0xffff);
+	value &= ~PLLE_MISC_SETUP_EXT(0x3);
+	writel(value, NV_PA_CLK_RST_BASE + PLLE_MISC);
+
+	value = readl(NV_PA_CLK_RST_BASE + PLLE_MISC);
+	if ((value & PLLE_MISC_PLL_READY) == 0) {
+		err = tegra_plle_train();
+		if (err < 0) {
+			error("failed to train PLLE: %d", err);
+			return err;
+		}
+	}
+
+	value = readl(NV_PA_CLK_RST_BASE + PLLE_MISC);
+	value |= PLLE_MISC_SETUP_BASE(0x7);
+	value |= PLLE_MISC_LOCK_ENABLE;
+	value |= PLLE_MISC_SETUP_EXT(0);
+	writel(value, NV_PA_CLK_RST_BASE + PLLE_MISC);
+
+	value = readl(NV_PA_CLK_RST_BASE + PLLE_SS_CNTL);
+	value |= PLLE_SS_CNTL_SSCBYP | PLLE_SS_CNTL_INTERP_RESET |
+		 PLLE_SS_CNTL_BYPASS_SS;
+	writel(value, NV_PA_CLK_RST_BASE + PLLE_SS_CNTL);
+
+	value = readl(NV_PA_CLK_RST_BASE + PLLE_BASE);
+	value |= PLLE_BASE_ENABLE_CML | PLLE_BASE_ENABLE;
+	writel(value, NV_PA_CLK_RST_BASE + PLLE_BASE);
+
+	do {
+		value = readl(NV_PA_CLK_RST_BASE + PLLE_MISC);
+		if (value & PLLE_MISC_LOCK)
+			break;
+
+		udelay(2);
+	} while (--timeout);
+
+	if (timeout == 0) {
+		error("timeout waiting for PLLE to lock");
+		return -ETIMEDOUT;
+	}
+
+	udelay(50);
+
+	value = readl(NV_PA_CLK_RST_BASE + PLLE_SS_CNTL);
+	value &= ~PLLE_SS_CNTL_SSCINCINTRV(0x3f);
+	value |= PLLE_SS_CNTL_SSCINCINTRV(0x18);
+
+	value &= ~PLLE_SS_CNTL_SSCINC(0xff);
+	value |= PLLE_SS_CNTL_SSCINC(0x01);
+
+	value &= ~PLLE_SS_CNTL_SSCBYP;
+	value &= ~PLLE_SS_CNTL_INTERP_RESET;
+	value &= ~PLLE_SS_CNTL_BYPASS_SS;
+
+	value &= ~PLLE_SS_CNTL_SSCMAX(0x1ff);
+	value |= PLLE_SS_CNTL_SSCMAX(0x24);
+	writel(value, NV_PA_CLK_RST_BASE + PLLE_SS_CNTL);
+
+	return 0;
+}
diff --git a/arch/arm/cpu/tegra30-common/clock.c b/arch/arm/cpu/tegra30-common/clock.c
index 80ba2d8..0eb0f0a 100644
--- a/arch/arm/cpu/tegra30-common/clock.c
+++ b/arch/arm/cpu/tegra30-common/clock.c
@@ -17,6 +17,7 @@
 /* Tegra30 Clock control functions */
 
 #include <common.h>
+#include <errno.h>
 #include <asm/io.h>
 #include <asm/arch/clock.h>
 #include <asm/arch/tegra.h>
@@ -563,6 +564,7 @@ enum periph_id clk_id_to_periph_id(int clk_id)
 	case PERIPH_ID_RESERVED43:
 	case PERIPH_ID_RESERVED45:
 	case PERIPH_ID_RESERVED56:
+	case PERIPH_ID_PCIEXCLK:
 	case PERIPH_ID_RESERVED76:
 	case PERIPH_ID_RESERVED77:
 	case PERIPH_ID_RESERVED78:
@@ -587,3 +589,156 @@ void clock_early_init(void)
 void arch_timer_init(void)
 {
 }
+
+#define PMC_SATA_PWRGT 0x1ac
+#define  PMC_SATA_PWRGT_PLLE_IDDQ_OVERRIDE (1 << 5)
+#define  PMC_SATA_PWRGT_PLLE_IDDQ_SWCTL (1 << 4)
+
+#define PLLE_SS_CNTL 0x68
+#define  PLLE_SS_CNTL_SSCINCINTRV(x) (((x) & 0x3f) << 24)
+#define  PLLE_SS_CNTL_SSCINC(x) (((x) & 0xff) << 16)
+#define  PLLE_SS_CNTL_SSCBYP (1 << 12)
+#define  PLLE_SS_CNTL_INTERP_RESET (1 << 11)
+#define  PLLE_SS_CNTL_BYPASS_SS (1 << 10)
+#define  PLLE_SS_CNTL_SSCMAX(x) (((x) & 0x1ff) << 0)
+
+#define PLLE_BASE 0x0e8
+#define  PLLE_BASE_ENABLE_CML (1 << 31)
+#define  PLLE_BASE_ENABLE (1 << 30)
+#define  PLLE_BASE_PLDIV_CML(x) (((x) & 0xf) << 24)
+#define  PLLE_BASE_PLDIV(x) (((x) & 0x3f) << 16)
+#define  PLLE_BASE_NDIV(x) (((x) & 0xff) << 8)
+#define  PLLE_BASE_MDIV(x) (((x) & 0xff) << 0)
+
+#define PLLE_MISC 0x0ec
+#define  PLLE_MISC_SETUP_BASE(x) (((x) & 0xffff) << 16)
+#define  PLLE_MISC_PLL_READY (1 << 15)
+#define  PLLE_MISC_LOCK (1 << 11)
+#define  PLLE_MISC_LOCK_ENABLE (1 << 9)
+#define  PLLE_MISC_SETUP_EXT(x) (((x) & 0x3) << 2)
+
+static int tegra_plle_train(void)
+{
+	unsigned int timeout = 2000;
+	unsigned long value;
+
+	value = readl(NV_PA_PMC_BASE + PMC_SATA_PWRGT);
+	value |= PMC_SATA_PWRGT_PLLE_IDDQ_OVERRIDE;
+	writel(value, NV_PA_PMC_BASE + PMC_SATA_PWRGT);
+
+	value = readl(NV_PA_PMC_BASE + PMC_SATA_PWRGT);
+	value |= PMC_SATA_PWRGT_PLLE_IDDQ_SWCTL;
+	writel(value, NV_PA_PMC_BASE + PMC_SATA_PWRGT);
+
+	value = readl(NV_PA_PMC_BASE + PMC_SATA_PWRGT);
+	value &= ~PMC_SATA_PWRGT_PLLE_IDDQ_OVERRIDE;
+	writel(value, NV_PA_PMC_BASE + PMC_SATA_PWRGT);
+
+	do {
+		value = readl(NV_PA_CLK_RST_BASE + PLLE_MISC);
+		if (value & PLLE_MISC_PLL_READY)
+			break;
+
+		udelay(100);
+	} while (--timeout);
+
+	if (timeout == 0) {
+		error("timeout waiting for PLLE to become ready");
+		return -ETIMEDOUT;
+	}
+
+	return 0;
+}
+
+int tegra_plle_enable(void)
+{
+	unsigned int cpcon = 11, p = 18, n = 150, m = 1, timeout = 1000;
+	u32 value;
+	int err;
+
+	/* disable PLLE clock */
+	value = readl(NV_PA_CLK_RST_BASE + PLLE_BASE);
+	value &= ~PLLE_BASE_ENABLE_CML;
+	value &= ~PLLE_BASE_ENABLE;
+	writel(value, NV_PA_CLK_RST_BASE + PLLE_BASE);
+
+	/* clear lock enable and setup field */
+	value = readl(NV_PA_CLK_RST_BASE + PLLE_MISC);
+	value &= ~PLLE_MISC_LOCK_ENABLE;
+	value &= ~PLLE_MISC_SETUP_BASE(0xffff);
+	value &= ~PLLE_MISC_SETUP_EXT(0x3);
+	writel(value, NV_PA_CLK_RST_BASE + PLLE_MISC);
+
+	value = readl(NV_PA_CLK_RST_BASE + PLLE_MISC);
+	if ((value & PLLE_MISC_PLL_READY) == 0) {
+		err = tegra_plle_train();
+		if (err < 0) {
+			error("failed to train PLLE: %d", err);
+			return err;
+		}
+	}
+
+	/* configure PLLE */
+	value = readl(NV_PA_CLK_RST_BASE + PLLE_BASE);
+
+	value &= ~PLLE_BASE_PLDIV_CML(0x0f);
+	value |= PLLE_BASE_PLDIV_CML(cpcon);
+
+	value &= ~PLLE_BASE_PLDIV(0x3f);
+	value |= PLLE_BASE_PLDIV(p);
+
+	value &= ~PLLE_BASE_NDIV(0xff);
+	value |= PLLE_BASE_NDIV(n);
+
+	value &= ~PLLE_BASE_MDIV(0xff);
+	value |= PLLE_BASE_MDIV(m);
+
+	writel(value, NV_PA_CLK_RST_BASE + PLLE_BASE);
+
+	value = readl(NV_PA_CLK_RST_BASE + PLLE_MISC);
+	value |= PLLE_MISC_SETUP_BASE(0x7);
+	value |= PLLE_MISC_LOCK_ENABLE;
+	value |= PLLE_MISC_SETUP_EXT(0);
+	writel(value, NV_PA_CLK_RST_BASE + PLLE_MISC);
+
+	value = readl(NV_PA_CLK_RST_BASE + PLLE_SS_CNTL);
+	value |= PLLE_SS_CNTL_SSCBYP | PLLE_SS_CNTL_INTERP_RESET |
+		 PLLE_SS_CNTL_BYPASS_SS;
+	writel(value, NV_PA_CLK_RST_BASE + PLLE_SS_CNTL);
+
+	value = readl(NV_PA_CLK_RST_BASE + PLLE_BASE);
+	value |= PLLE_BASE_ENABLE_CML | PLLE_BASE_ENABLE;
+	writel(value, NV_PA_CLK_RST_BASE + PLLE_BASE);
+
+	do {
+		value = readl(NV_PA_CLK_RST_BASE + PLLE_MISC);
+		if (value & PLLE_MISC_LOCK)
+			break;
+
+		udelay(2);
+	} while (--timeout);
+
+	if (timeout == 0) {
+		error("timeout waiting for PLLE to lock");
+		return -ETIMEDOUT;
+	}
+
+	udelay(50);
+
+	value = readl(NV_PA_CLK_RST_BASE + PLLE_SS_CNTL);
+	value &= ~PLLE_SS_CNTL_SSCINCINTRV(0x3f);
+	value |= PLLE_SS_CNTL_SSCINCINTRV(0x18);
+
+	value &= ~PLLE_SS_CNTL_SSCINC(0xff);
+	value |= PLLE_SS_CNTL_SSCINC(0x01);
+
+	value &= ~PLLE_SS_CNTL_SSCBYP;
+	value &= ~PLLE_SS_CNTL_INTERP_RESET;
+	value &= ~PLLE_SS_CNTL_BYPASS_SS;
+
+	value &= ~PLLE_SS_CNTL_SSCMAX(0x1ff);
+	value |= PLLE_SS_CNTL_SSCMAX(0x24);
+	writel(value, NV_PA_CLK_RST_BASE + PLLE_SS_CNTL);
+
+	return 0;
+}
diff --git a/arch/arm/dts/tegra124-jetson-tk1.dts b/arch/arm/dts/tegra124-jetson-tk1.dts
index f6fe9a0..51fef54 100644
--- a/arch/arm/dts/tegra124-jetson-tk1.dts
+++ b/arch/arm/dts/tegra124-jetson-tk1.dts
@@ -29,6 +29,26 @@
 		reg = <0x80000000 0x80000000>;
 	};
 
+	pcie-controller@01003000 {
+		status = "okay";
+
+		avddio-pex-supply = <&vdd_1v05_run>;
+		dvddio-pex-supply = <&vdd_1v05_run>;
+		avdd-pex-pll-supply = <&vdd_1v05_run>;
+		hvdd-pex-supply = <&vdd_3v3_lp0>;
+		hvdd-pex-pll-e-supply = <&vdd_3v3_lp0>;
+		vddio-pex-ctl-supply = <&vdd_3v3_lp0>;
+		avdd-pll-erefe-supply = <&avdd_1v05_run>;
+
+		pci@1,0 {
+			status = "okay";
+		};
+
+		pci@2,0 {
+			status = "okay";
+		};
+	};
+
 	i2c@7000c000 {
 		status = "okay";
 		clock-frequency = <100000>;
@@ -49,9 +69,195 @@
 		clock-frequency = <100000>;
 	};
 
+	/* Expansion PWR_I2C_*, on-board components */
 	i2c@7000d000 {
 		status = "okay";
 		clock-frequency = <400000>;
+
+		pmic: pmic@40 {
+			compatible = "ams,as3722";
+			reg = <0x40>;
+			interrupts = <0 86 IRQ_TYPE_LEVEL_HIGH>;
+
+			ams,system-power-controller;
+
+			#interrupt-cells = <2>;
+			interrupt-controller;
+
+			gpio-controller;
+			#gpio-cells = <2>;
+
+			pinctrl-names = "default";
+			pinctrl-0 = <&as3722_default>;
+
+			as3722_default: pinmux {
+				gpio0 {
+					pins = "gpio0";
+					function = "gpio";
+					bias-pull-down;
+				};
+
+				gpio1_2_4_7 {
+					pins = "gpio1", "gpio2", "gpio4", "gpio7";
+					function = "gpio";
+					bias-pull-up;
+				};
+
+				gpio3_5_6 {
+					pins = "gpio3", "gpio5", "gpio6";
+					bias-high-impedance;
+				};
+			};
+
+			regulators {
+				vsup-sd2-supply = <&vdd_5v0_sys>;
+				vsup-sd3-supply = <&vdd_5v0_sys>;
+				vsup-sd4-supply = <&vdd_5v0_sys>;
+				vsup-sd5-supply = <&vdd_5v0_sys>;
+				vin-ldo0-supply = <&vdd_1v35_lp0>;
+				vin-ldo1-6-supply = <&vdd_3v3_run>;
+				vin-ldo2-5-7-supply = <&vddio_1v8>;
+				vin-ldo3-4-supply = <&vdd_3v3_sys>;
+				vin-ldo9-10-supply = <&vdd_5v0_sys>;
+				vin-ldo11-supply = <&vdd_3v3_run>;
+
+				sd0 {
+					regulator-name = "+VDD_CPU_AP";
+					regulator-min-microvolt = <700000>;
+					regulator-max-microvolt = <1400000>;
+					regulator-min-microamp = <3500000>;
+					regulator-max-microamp = <3500000>;
+					regulator-always-on;
+					regulator-boot-on;
+					ams,ext-control = <2>;
+				};
+
+				sd1 {
+					regulator-name = "+VDD_CORE";
+					regulator-min-microvolt = <700000>;
+					regulator-max-microvolt = <1350000>;
+					regulator-min-microamp = <2500000>;
+					regulator-max-microamp = <2500000>;
+					regulator-always-on;
+					regulator-boot-on;
+					ams,ext-control = <1>;
+				};
+
+				vdd_1v35_lp0: sd2 {
+					regulator-name = "+1.35V_LP0(sd2)";
+					regulator-min-microvolt = <1350000>;
+					regulator-max-microvolt = <1350000>;
+					regulator-always-on;
+					regulator-boot-on;
+				};
+
+				sd3 {
+					regulator-name = "+1.35V_LP0(sd3)";
+					regulator-min-microvolt = <1350000>;
+					regulator-max-microvolt = <1350000>;
+					regulator-always-on;
+					regulator-boot-on;
+				};
+
+				vdd_1v05_run: sd4 {
+					regulator-name = "+1.05V_RUN";
+					regulator-min-microvolt = <1050000>;
+					regulator-max-microvolt = <1050000>;
+				};
+
+				vddio_1v8: sd5 {
+					regulator-name = "+1.8V_VDDIO";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					regulator-boot-on;
+					regulator-always-on;
+				};
+
+				vdd_gpu: sd6 {
+					regulator-name = "+VDD_GPU_AP";
+					regulator-min-microvolt = <650000>;
+					regulator-max-microvolt = <1200000>;
+					regulator-min-microamp = <3500000>;
+					regulator-max-microamp = <3500000>;
+					regulator-boot-on;
+					regulator-always-on;
+				};
+
+				avdd_1v05_run: ldo0 {
+					regulator-name = "+1.05V_RUN_AVDD";
+					regulator-min-microvolt = <1050000>;
+					regulator-max-microvolt = <1050000>;
+					regulator-boot-on;
+					regulator-always-on;
+					ams,ext-control = <1>;
+				};
+
+				ldo1 {
+					regulator-name = "+1.8V_RUN_CAM";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+				};
+
+				ldo2 {
+					regulator-name = "+1.2V_GEN_AVDD";
+					regulator-min-microvolt = <1200000>;
+					regulator-max-microvolt = <1200000>;
+					regulator-boot-on;
+					regulator-always-on;
+				};
+
+				ldo3 {
+					regulator-name = "+1.05V_LP0_VDD_RTC";
+					regulator-min-microvolt = <1000000>;
+					regulator-max-microvolt = <1000000>;
+					regulator-boot-on;
+					regulator-always-on;
+					ams,enable-tracking;
+				};
+
+				ldo4 {
+					regulator-name = "+2.8V_RUN_CAM";
+					regulator-min-microvolt = <2800000>;
+					regulator-max-microvolt = <2800000>;
+				};
+
+				ldo5 {
+					regulator-name = "+1.2V_RUN_CAM_FRONT";
+					regulator-min-microvolt = <1200000>;
+					regulator-max-microvolt = <1200000>;
+				};
+
+				vddio_sdmmc3: ldo6 {
+					regulator-name = "+VDDIO_SDMMC3";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <3300000>;
+				};
+
+				ldo7 {
+					regulator-name = "+1.05V_RUN_CAM_REAR";
+					regulator-min-microvolt = <1050000>;
+					regulator-max-microvolt = <1050000>;
+				};
+
+				ldo9 {
+					regulator-name = "+3.3V_RUN_TOUCH";
+					regulator-min-microvolt = <2800000>;
+					regulator-max-microvolt = <2800000>;
+				};
+
+				ldo10 {
+					regulator-name = "+2.8V_RUN_CAM_AF";
+					regulator-min-microvolt = <2800000>;
+					regulator-max-microvolt = <2800000>;
+				};
+
+				ldo11 {
+					regulator-name = "+1.8V_RUN_VPP_FUSE";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+				};
+			};
+		};
 	};
 
 	i2c@7000d100 {
@@ -69,6 +275,32 @@
 		spi-max-frequency = <25000000>;
 	};
 
+	padctl@7009f000 {
+		pinctrl-0 = <&padctl_default>;
+		pinctrl-names = "default";
+
+		padctl_default: pinmux {
+			usb3 {
+				nvidia,lanes = "pcie-0", "pcie-1";
+				nvidia,function = "usb3";
+				nvidia,iddq = <0>;
+			};
+
+			pcie {
+				nvidia,lanes = "pcie-2", "pcie-3",
+					       "pcie-4";
+				nvidia,function = "pcie";
+				nvidia,iddq = <0>;
+			};
+
+			sata {
+				nvidia,lanes = "sata-0";
+				nvidia,function = "sata";
+				nvidia,iddq = <0>;
+			};
+		};
+	};
+
 	sdhci@700b0400 {
 		status = "okay";
 		cd-gpios = <&gpio 170 1>; /* gpio PV2 */
@@ -91,4 +323,145 @@
 		status = "okay";
 		nvidia,vbus-gpio = <&gpio 109 0>; /* gpio PN5, USB_VBUS_EN1 */
 	};
+
+	regulators {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		vdd_mux: regulator@0 {
+			compatible = "regulator-fixed";
+			reg = <0>;
+			regulator-name = "+VDD_MUX";
+			regulator-min-microvolt = <12000000>;
+			regulator-max-microvolt = <12000000>;
+			regulator-always-on;
+			regulator-boot-on;
+		};
+
+		vdd_5v0_sys: regulator@1 {
+			compatible = "regulator-fixed";
+			reg = <1>;
+			regulator-name = "+5V_SYS";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			regulator-always-on;
+			regulator-boot-on;
+			vin-supply = <&vdd_mux>;
+		};
+
+		vdd_3v3_sys: regulator@2 {
+			compatible = "regulator-fixed";
+			reg = <2>;
+			regulator-name = "+3.3V_SYS";
+			regulator-min-microvolt = <3300000>;
+			regulator-max-microvolt = <3300000>;
+			regulator-always-on;
+			regulator-boot-on;
+			vin-supply = <&vdd_mux>;
+		};
+
+		vdd_3v3_run: regulator@3 {
+			compatible = "regulator-fixed";
+			reg = <3>;
+			regulator-name = "+3.3V_RUN";
+			regulator-min-microvolt = <3300000>;
+			regulator-max-microvolt = <3300000>;
+			regulator-always-on;
+			regulator-boot-on;
+			gpio = <&pmic 1 GPIO_ACTIVE_HIGH>;
+			enable-active-high;
+			vin-supply = <&vdd_3v3_sys>;
+		};
+
+		vdd_3v3_hdmi: regulator@4 {
+			compatible = "regulator-fixed";
+			reg = <4>;
+			regulator-name = "+3.3V_AVDD_HDMI_AP_GATED";
+			regulator-min-microvolt = <3300000>;
+			regulator-max-microvolt = <3300000>;
+			vin-supply = <&vdd_3v3_run>;
+		};
+
+		vdd_usb1_vbus: regulator@7 {
+			compatible = "regulator-fixed";
+			reg = <7>;
+			regulator-name = "+USB0_VBUS_SW";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			gpio = <&gpio TEGRA_GPIO(N, 4) GPIO_ACTIVE_HIGH>;
+			enable-active-high;
+			gpio-open-drain;
+			vin-supply = <&vdd_5v0_sys>;
+		};
+
+		vdd_usb3_vbus: regulator@8 {
+			compatible = "regulator-fixed";
+			reg = <8>;
+			regulator-name = "+5V_USB_HS";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			gpio = <&gpio TEGRA_GPIO(N, 5) GPIO_ACTIVE_HIGH>;
+			enable-active-high;
+			gpio-open-drain;
+			vin-supply = <&vdd_5v0_sys>;
+		};
+
+		vdd_3v3_lp0: regulator@10 {
+			compatible = "regulator-fixed";
+			reg = <10>;
+			regulator-name = "+3.3V_LP0";
+			regulator-min-microvolt = <3300000>;
+			regulator-max-microvolt = <3300000>;
+			regulator-always-on;
+			regulator-boot-on;
+			gpio = <&pmic 2 GPIO_ACTIVE_HIGH>;
+			enable-active-high;
+			vin-supply = <&vdd_3v3_sys>;
+		};
+
+		vdd_hdmi_pll: regulator@11 {
+			compatible = "regulator-fixed";
+			reg = <11>;
+			regulator-name = "+1.05V_RUN_AVDD_HDMI_PLL";
+			regulator-min-microvolt = <1050000>;
+			regulator-max-microvolt = <1050000>;
+			gpio = <&gpio TEGRA_GPIO(H, 7) GPIO_ACTIVE_LOW>;
+			vin-supply = <&vdd_1v05_run>;
+		};
+
+		vdd_5v0_hdmi: regulator@12 {
+			compatible = "regulator-fixed";
+			reg = <12>;
+			regulator-name = "+5V_HDMI_CON";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			gpio = <&gpio TEGRA_GPIO(K, 6) GPIO_ACTIVE_HIGH>;
+			enable-active-high;
+			vin-supply = <&vdd_5v0_sys>;
+		};
+
+		/* Molex power connector */
+		vdd_5v0_sata: regulator@13 {
+			compatible = "regulator-fixed";
+			reg = <13>;
+			regulator-name = "+5V_SATA";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			gpio = <&gpio TEGRA_GPIO(EE, 2) GPIO_ACTIVE_HIGH>;
+			enable-active-high;
+			vin-supply = <&vdd_5v0_sys>;
+		};
+
+		vdd_12v0_sata: regulator@14 {
+			compatible = "regulator-fixed";
+			reg = <14>;
+			regulator-name = "+12V_SATA";
+			regulator-min-microvolt = <12000000>;
+			regulator-max-microvolt = <12000000>;
+			gpio = <&gpio TEGRA_GPIO(EE, 2) GPIO_ACTIVE_HIGH>;
+			enable-active-high;
+			vin-supply = <&vdd_mux>;
+		};
+	};
 };
diff --git a/arch/arm/dts/tegra124.dtsi b/arch/arm/dts/tegra124.dtsi
index 6b5c2be..9fa141d 100644
--- a/arch/arm/dts/tegra124.dtsi
+++ b/arch/arm/dts/tegra124.dtsi
@@ -2,11 +2,91 @@
 #include <dt-bindings/gpio/tegra-gpio.h>
 #include <dt-bindings/pinctrl/pinctrl-tegra.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/pinctrl/pinctrl-tegra-xusb.h>
 
 #include "skeleton.dtsi"
 
 / {
 	compatible = "nvidia,tegra124";
+	interrupt-parent = <&gic>;
+
+	pcie-controller@01003000 {
+		compatible = "nvidia,tegra124-pcie";
+		device_type = "pci";
+		reg = <0x01003000 0x00000800   /* PADS registers */
+		       0x01003800 0x00000800   /* AFI registers */
+		       0x02000000 0x10000000>; /* configuration space */
+		reg-names = "pads", "afi", "cs";
+		interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>, /* controller interrupt */
+			     <GIC_SPI 99 IRQ_TYPE_LEVEL_HIGH>; /* MSI interrupt */
+		interrupt-names = "intr", "msi";
+
+		#interrupt-cells = <1>;
+		interrupt-map-mask = <0 0 0 0>;
+		interrupt-map = <0 0 0 0 &gic GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>;
+
+		bus-range = <0x00 0xff>;
+		#address-cells = <3>;
+		#size-cells = <2>;
+
+		ranges = <0x82000000 0 0x01000000 0x01000000 0 0x00001000   /* port 0 configuration space */
+			  0x82000000 0 0x01001000 0x01001000 0 0x00001000   /* port 1 configuration space */
+			  0x81000000 0 0x0        0x12000000 0 0x00010000   /* downstream I/O (64 KiB) */
+			  0x82000000 0 0x13000000 0x13000000 0 0x0d000000   /* non-prefetchable memory (208 MiB) */
+			  0xc2000000 0 0x20000000 0x20000000 0 0x20000000>; /* prefetchable memory (512 MiB) */
+
+		clocks = <&tegra_car TEGRA124_CLK_PCIE>,
+			 <&tegra_car TEGRA124_CLK_AFI>,
+			 <&tegra_car TEGRA124_CLK_PLL_E>,
+			 <&tegra_car TEGRA124_CLK_CML0>;
+		clock-names = "pex", "afi", "pll_e", "cml";
+		resets = <&tegra_car 70>,
+			 <&tegra_car 72>,
+			 <&tegra_car 74>;
+		reset-names = "pex", "afi", "pcie_x";
+		status = "disabled";
+
+		phys = <&padctl TEGRA_XUSB_PADCTL_PCIE>;
+		phy-names = "pcie";
+
+		pci@1,0 {
+			device_type = "pci";
+			assigned-addresses = <0x82000800 0 0x01000000 0 0x1000>;
+			reg = <0x000800 0 0 0 0>;
+			status = "disabled";
+
+			#address-cells = <3>;
+			#size-cells = <2>;
+			ranges;
+
+			nvidia,num-lanes = <2>;
+		};
+
+		pci@2,0 {
+			device_type = "pci";
+			assigned-addresses = <0x82001000 0 0x01001000 0 0x1000>;
+			reg = <0x001000 0 0 0 0>;
+			status = "disabled";
+
+			#address-cells = <3>;
+			#size-cells = <2>;
+			ranges;
+
+			nvidia,num-lanes = <1>;
+		};
+	};
+
+	gic: interrupt-controller@50041000 {
+		compatible = "arm,cortex-a15-gic";
+		#interrupt-cells = <3>;
+		interrupt-controller;
+		reg = <0x50041000 0x1000>,
+		      <0x50042000 0x2000>,
+		      <0x50044000 0x2000>,
+		      <0x50046000 0x2000>;
+		interrupts = <GIC_PPI 9
+			(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
+	};
 
 	tegra_car: clock@60006000 {
 		compatible = "nvidia,tegra124-car";
@@ -269,6 +349,15 @@
 		clocks = <&tegra_car 105>;
 	};
 
+	padctl: padctl@7009f000 {
+		compatible = "nvidia,tegra124-xusb-padctl";
+		reg = <0x7009f000 0x1000>;
+		resets = <&tegra_car 142>;
+		reset-names = "padctl";
+
+		#phy-cells = <1>;
+	};
+
 	sdhci@700b0000 {
 		compatible = "nvidia,tegra124-sdhci";
 		reg = <0x700b0000 0x200>;
diff --git a/arch/arm/dts/tegra20-trimslice.dts b/arch/arm/dts/tegra20-trimslice.dts
index 74e8a16..1637cbd 100644
--- a/arch/arm/dts/tegra20-trimslice.dts
+++ b/arch/arm/dts/tegra20-trimslice.dts
@@ -47,6 +47,20 @@
 		status = "disabled";
 	};
 
+	pcie-controller@80003000 {
+		status = "okay";
+
+		avdd-pex-supply = <&pci_vdd_reg>;
+		vdd-pex-supply = <&pci_vdd_reg>;
+		avdd-pex-pll-supply = <&pci_vdd_reg>;
+		avdd-plle-supply = <&pci_vdd_reg>;
+		vddio-pex-clk-supply = <&pci_clk_reg>;
+
+		pci@1,0 {
+			status = "okay";
+		};
+	};
+
 	usb@c5000000 {
 		nvidia,vbus-gpio = <&gpio 170 0>; /* PV2 */
 	};
@@ -66,4 +80,59 @@
 		wp-gpios = <&gpio 122 0>; /* gpio PP2 */
 		bus-width = <4>;
 	};
+
+	regulators {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		hdmi_vdd_reg: regulator@0 {
+			compatible = "regulator-fixed";
+			reg = <0>;
+			regulator-name = "avdd_hdmi";
+			regulator-min-microvolt = <3300000>;
+			regulator-max-microvolt = <3300000>;
+			regulator-always-on;
+		};
+
+		hdmi_pll_reg: regulator@1 {
+			compatible = "regulator-fixed";
+			reg = <1>;
+			regulator-name = "avdd_hdmi_pll";
+			regulator-min-microvolt = <1800000>;
+			regulator-max-microvolt = <1800000>;
+			regulator-always-on;
+		};
+
+		vbus_reg: regulator@2 {
+			compatible = "regulator-fixed";
+			reg = <2>;
+			regulator-name = "usb1_vbus";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			enable-active-high;
+			gpio = <&gpio TEGRA_GPIO(V, 2) 0>;
+			regulator-always-on;
+			regulator-boot-on;
+		};
+
+		pci_clk_reg: regulator@3 {
+			compatible = "regulator-fixed";
+			reg = <3>;
+			regulator-name = "pci_clk";
+			regulator-min-microvolt = <3300000>;
+			regulator-max-microvolt = <3300000>;
+			regulator-always-on;
+		};
+
+		pci_vdd_reg: regulator@4 {
+			compatible = "regulator-fixed";
+			reg = <4>;
+			regulator-name = "pci_vdd";
+			regulator-min-microvolt = <1050000>;
+			regulator-max-microvolt = <1050000>;
+			regulator-always-on;
+		};
+	};
+
 };
diff --git a/arch/arm/dts/tegra20.dtsi b/arch/arm/dts/tegra20.dtsi
index 5f927f7..b8c8a92 100644
--- a/arch/arm/dts/tegra20.dtsi
+++ b/arch/arm/dts/tegra20.dtsi
@@ -332,6 +332,65 @@
 		reg = <0x7000f400 0x200>;
 	};
 
+	pcie-controller@80003000 {
+		compatible = "nvidia,tegra20-pcie";
+		device_type = "pci";
+		reg = <0x80003000 0x00000800   /* PADS registers */
+		       0x80003800 0x00000200   /* AFI registers */
+		       0x90000000 0x10000000>; /* configuration space */
+		reg-names = "pads", "afi", "cs";
+		interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH   /* controller interrupt */
+			      GIC_SPI 99 IRQ_TYPE_LEVEL_HIGH>; /* MSI interrupt */
+		interrupt-names = "intr", "msi";
+
+		#interrupt-cells = <1>;
+		interrupt-map-mask = <0 0 0 0>;
+		interrupt-map = <0 0 0 0 &intc GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>;
+
+		bus-range = <0x00 0xff>;
+		#address-cells = <3>;
+		#size-cells = <2>;
+
+		ranges = <0x82000000 0 0x80000000 0x80000000 0 0x00001000   /* port 0 registers */
+			  0x82000000 0 0x80001000 0x80001000 0 0x00001000   /* port 1 registers */
+			  0x81000000 0 0          0x82000000 0 0x00010000   /* downstream I/O */
+			  0x82000000 0 0xa0000000 0xa0000000 0 0x08000000   /* non-prefetchable memory */
+			  0xc2000000 0 0xa8000000 0xa8000000 0 0x18000000>; /* prefetchable memory */
+
+		clocks = <&tegra_car TEGRA20_CLK_PEX>,
+			 <&tegra_car TEGRA20_CLK_AFI>,
+			 <&tegra_car TEGRA20_CLK_PCIE_XCLK>,
+			 <&tegra_car TEGRA20_CLK_PLL_E>;
+		clock-names = "pex", "afi", "pcie_xclk", "pll_e";
+		status = "disabled";
+
+		pci@1,0 {
+			device_type = "pci";
+			assigned-addresses = <0x82000800 0 0x80000000 0 0x1000>;
+			reg = <0x000800 0 0 0 0>;
+			status = "disabled";
+
+			#address-cells = <3>;
+			#size-cells = <2>;
+			ranges;
+
+			nvidia,num-lanes = <2>;
+		};
+
+		pci@2,0 {
+			device_type = "pci";
+			assigned-addresses = <0x82001000 0 0x80001000 0 0x1000>;
+			reg = <0x001000 0 0 0 0>;
+			status = "disabled";
+
+			#address-cells = <3>;
+			#size-cells = <2>;
+			ranges;
+
+			nvidia,num-lanes = <2>;
+		};
+	};
+
 	usb@c5000000 {
 		compatible = "nvidia,tegra20-ehci", "usb-ehci";
 		reg = <0xc5000000 0x4000>;
diff --git a/arch/arm/dts/tegra30-beaver.dts b/arch/arm/dts/tegra30-beaver.dts
index 9acd84d..5903af6 100644
--- a/arch/arm/dts/tegra30-beaver.dts
+++ b/arch/arm/dts/tegra30-beaver.dts
@@ -28,6 +28,33 @@
 		reg = <0x80000000 0x7ff00000>;
 	};
 
+	pcie-controller@00003000 {
+		status = "okay";
+
+		avdd-pexa-supply = <&ldo1_reg>;
+		vdd-pexa-supply = <&ldo1_reg>;
+		avdd-pexb-supply = <&ldo1_reg>;
+		vdd-pexb-supply = <&ldo1_reg>;
+		avdd-pex-pll-supply = <&ldo1_reg>;
+		avdd-plle-supply = <&ldo1_reg>;
+		vddio-pex-ctl-supply = <&sys_3v3_reg>;
+		hvdd-pex-supply = <&sys_3v3_pexs_reg>;
+
+		pci@1,0 {
+			status = "okay";
+			nvidia,num-lanes = <2>;
+		};
+
+		pci@2,0 {
+			nvidia,num-lanes = <2>;
+		};
+
+		pci@3,0 {
+			status = "okay";
+			nvidia,num-lanes = <2>;
+		};
+	};
+
 	i2c@7000c000 {
 		status = "okay";
 		clock-frequency = <100000>;
@@ -51,6 +78,110 @@
 	i2c@7000d000 {
 		status = "okay";
 		clock-frequency = <100000>;
+
+		pmic: tps65911@2d {
+			compatible = "ti,tps65911";
+			reg = <0x2d>;
+
+			interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>;
+			#interrupt-cells = <2>;
+			interrupt-controller;
+
+			ti,system-power-controller;
+
+			#gpio-cells = <2>;
+			gpio-controller;
+
+			vcc1-supply = <&vdd_5v_in_reg>;
+			vcc2-supply = <&vdd_5v_in_reg>;
+			vcc3-supply = <&vio_reg>;
+			vcc4-supply = <&vdd_5v_in_reg>;
+			vcc5-supply = <&vdd_5v_in_reg>;
+			vcc6-supply = <&vdd2_reg>;
+			vcc7-supply = <&vdd_5v_in_reg>;
+			vccio-supply = <&vdd_5v_in_reg>;
+
+			regulators {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				vdd1_reg: vdd1 {
+					regulator-name = "vddio_ddr_1v2";
+					regulator-min-microvolt = <1200000>;
+					regulator-max-microvolt = <1200000>;
+					regulator-always-on;
+				};
+
+				vdd2_reg: vdd2 {
+					regulator-name = "vdd_1v5_gen";
+					regulator-min-microvolt = <1500000>;
+					regulator-max-microvolt = <1500000>;
+					regulator-always-on;
+				};
+
+				vddctrl_reg: vddctrl {
+					regulator-name = "vdd_cpu,vdd_sys";
+					regulator-min-microvolt = <1000000>;
+					regulator-max-microvolt = <1000000>;
+					regulator-always-on;
+				};
+
+				vio_reg: vio {
+					regulator-name = "vdd_1v8_gen";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					regulator-always-on;
+				};
+
+				ldo1_reg: ldo1 {
+					regulator-name = "vdd_pexa,vdd_pexb";
+					regulator-min-microvolt = <1050000>;
+					regulator-max-microvolt = <1050000>;
+				};
+
+				ldo2_reg: ldo2 {
+					regulator-name = "vdd_sata,avdd_plle";
+					regulator-min-microvolt = <1050000>;
+					regulator-max-microvolt = <1050000>;
+				};
+
+				/* LDO3 is not connected to anything */
+
+				ldo4_reg: ldo4 {
+					regulator-name = "vdd_rtc";
+					regulator-min-microvolt = <1200000>;
+					regulator-max-microvolt = <1200000>;
+					regulator-always-on;
+				};
+
+				ldo5_reg: ldo5 {
+					regulator-name = "vddio_sdmmc,avdd_vdac";
+					regulator-min-microvolt = <3300000>;
+					regulator-max-microvolt = <3300000>;
+					regulator-always-on;
+				};
+
+				ldo6_reg: ldo6 {
+					regulator-name = "avdd_dsi_csi,pwrdet_mipi";
+					regulator-min-microvolt = <1200000>;
+					regulator-max-microvolt = <1200000>;
+				};
+
+				ldo7_reg: ldo7 {
+					regulator-name = "vdd_pllm,x,u,a_p_c_s";
+					regulator-min-microvolt = <1200000>;
+					regulator-max-microvolt = <1200000>;
+					regulator-always-on;
+				};
+
+				ldo8_reg: ldo8 {
+					regulator-name = "vdd_ddr_hs";
+					regulator-min-microvolt = <1000000>;
+					regulator-max-microvolt = <1000000>;
+					regulator-always-on;
+				};
+			};
+		};
 	};
 
 	spi@7000da00 {
@@ -86,4 +217,118 @@
 		nvidia,vbus-gpio = <&gpio 236 0>; /* PDD4 */
 		status = "okay";
 	};
+
+	regulators {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		vdd_5v_in_reg: regulator@0 {
+			compatible = "regulator-fixed";
+			reg = <0>;
+			regulator-name = "vdd_5v_in";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			regulator-always-on;
+		};
+
+		chargepump_5v_reg: regulator@1 {
+			compatible = "regulator-fixed";
+			reg = <1>;
+			regulator-name = "chargepump_5v";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			regulator-boot-on;
+			regulator-always-on;
+			enable-active-high;
+			gpio = <&pmic 0 GPIO_ACTIVE_HIGH>;
+		};
+
+		ddr_reg: regulator@2 {
+			compatible = "regulator-fixed";
+			reg = <2>;
+			regulator-name = "vdd_ddr";
+			regulator-min-microvolt = <1500000>;
+			regulator-max-microvolt = <1500000>;
+			regulator-always-on;
+			regulator-boot-on;
+			enable-active-high;
+			gpio = <&pmic 7 GPIO_ACTIVE_HIGH>;
+			vin-supply = <&vdd_5v_in_reg>;
+		};
+
+		vdd_5v_sata_reg: regulator@3 {
+			compatible = "regulator-fixed";
+			reg = <3>;
+			regulator-name = "vdd_5v_sata";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			regulator-always-on;
+			regulator-boot-on;
+			enable-active-high;
+			gpio = <&gpio TEGRA_GPIO(D, 6) GPIO_ACTIVE_HIGH>;
+			vin-supply = <&vdd_5v_in_reg>;
+		};
+
+		usb1_vbus_reg: regulator@4 {
+			compatible = "regulator-fixed";
+			reg = <4>;
+			regulator-name = "usb1_vbus";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			enable-active-high;
+			gpio = <&gpio TEGRA_GPIO(DD, 6) GPIO_ACTIVE_HIGH>;
+			gpio-open-drain;
+			vin-supply = <&vdd_5v_in_reg>;
+		};
+
+		usb3_vbus_reg: regulator@5 {
+			compatible = "regulator-fixed";
+			reg = <5>;
+			regulator-name = "usb3_vbus";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			enable-active-high;
+			gpio = <&gpio TEGRA_GPIO(DD, 4) GPIO_ACTIVE_HIGH>;
+			gpio-open-drain;
+			vin-supply = <&vdd_5v_in_reg>;
+		};
+
+		sys_3v3_reg: regulator@6 {
+			compatible = "regulator-fixed";
+			reg = <6>;
+			regulator-name = "sys_3v3,vdd_3v3_alw";
+			regulator-min-microvolt = <3300000>;
+			regulator-max-microvolt = <3300000>;
+			regulator-always-on;
+			regulator-boot-on;
+			enable-active-high;
+			gpio = <&pmic 6 GPIO_ACTIVE_HIGH>;
+			vin-supply = <&vdd_5v_in_reg>;
+		};
+
+		sys_3v3_pexs_reg: regulator@7 {
+			compatible = "regulator-fixed";
+			reg = <7>;
+			regulator-name = "sys_3v3_pexs";
+			regulator-min-microvolt = <3300000>;
+			regulator-max-microvolt = <3300000>;
+			regulator-always-on;
+			regulator-boot-on;
+			enable-active-high;
+			gpio = <&gpio TEGRA_GPIO(L, 7) GPIO_ACTIVE_HIGH>;
+			vin-supply = <&sys_3v3_reg>;
+		};
+
+		vdd_5v0_hdmi: regulator@8 {
+			compatible = "regulator-fixed";
+			reg = <8>;
+			regulator-name = "+VDD_5V_HDMI";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			regulator-always-on;
+			regulator-boot-on;
+			vin-supply = <&sys_3v3_reg>;
+		};
+	};
 };
diff --git a/arch/arm/dts/tegra30-cardhu.dts b/arch/arm/dts/tegra30-cardhu.dts
index 1b8ed73..e13d0fb 100644
--- a/arch/arm/dts/tegra30-cardhu.dts
+++ b/arch/arm/dts/tegra30-cardhu.dts
@@ -27,6 +27,31 @@
 		reg = <0x80000000 0x40000000>;
 	};
 
+	pcie-controller@00003000 {
+		status = "okay";
+
+		/* AVDD_PEXA and VDD_PEXA inputs are grounded on Cardhu. */
+		avdd-pexb-supply = <&ldo1_reg>;
+		vdd-pexb-supply = <&ldo1_reg>;
+		avdd-pex-pll-supply = <&ldo1_reg>;
+		hvdd-pex-supply = <&pex_hvdd_3v3_reg>;
+		vddio-pex-ctl-supply = <&sys_3v3_reg>;
+		avdd-plle-supply = <&ldo2_reg>;
+
+		pci@1,0 {
+			nvidia,num-lanes = <4>;
+		};
+
+		pci@2,0 {
+			nvidia,num-lanes = <1>;
+		};
+
+		pci@3,0 {
+			status = "okay";
+			nvidia,num-lanes = <1>;
+		};
+	};
+
 	i2c@7000c000 {
 		status = "okay";
 		clock-frequency = <100000>;
@@ -50,6 +75,107 @@
 	i2c@7000d000 {
 		status = "okay";
 		clock-frequency = <100000>;
+
+		pmic: tps65911@2d {
+			compatible = "ti,tps65911";
+			reg = <0x2d>;
+
+			interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>;
+			#interrupt-cells = <2>;
+			interrupt-controller;
+
+			ti,system-power-controller;
+
+			#gpio-cells = <2>;
+			gpio-controller;
+
+			vcc1-supply = <&vdd_ac_bat_reg>;
+			vcc2-supply = <&vdd_ac_bat_reg>;
+			vcc3-supply = <&vio_reg>;
+			vcc4-supply = <&vdd_5v0_reg>;
+			vcc5-supply = <&vdd_ac_bat_reg>;
+			vcc6-supply = <&vdd2_reg>;
+			vcc7-supply = <&vdd_ac_bat_reg>;
+			vccio-supply = <&vdd_ac_bat_reg>;
+
+			regulators {
+				vdd1_reg: vdd1 {
+					regulator-name = "vddio_ddr_1v2";
+					regulator-min-microvolt = <1200000>;
+					regulator-max-microvolt = <1200000>;
+					regulator-always-on;
+				};
+
+				vdd2_reg: vdd2 {
+					regulator-name = "vdd_1v5_gen";
+					regulator-min-microvolt = <1500000>;
+					regulator-max-microvolt = <1500000>;
+					regulator-always-on;
+				};
+
+				vddctrl_reg: vddctrl {
+					regulator-name = "vdd_cpu,vdd_sys";
+					regulator-min-microvolt = <1000000>;
+					regulator-max-microvolt = <1000000>;
+					regulator-always-on;
+				};
+
+				vio_reg: vio {
+					regulator-name = "vdd_1v8_gen";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					regulator-always-on;
+				};
+
+				ldo1_reg: ldo1 {
+					regulator-name = "vdd_pexa,vdd_pexb";
+					regulator-min-microvolt = <1050000>;
+					regulator-max-microvolt = <1050000>;
+				};
+
+				ldo2_reg: ldo2 {
+					regulator-name = "vdd_sata,avdd_plle";
+					regulator-min-microvolt = <1050000>;
+					regulator-max-microvolt = <1050000>;
+				};
+
+				/* LDO3 is not connected to anything */
+
+				ldo4_reg: ldo4 {
+					regulator-name = "vdd_rtc";
+					regulator-min-microvolt = <1200000>;
+					regulator-max-microvolt = <1200000>;
+					regulator-always-on;
+				};
+
+				ldo5_reg: ldo5 {
+					regulator-name = "vddio_sdmmc,avdd_vdac";
+					regulator-min-microvolt = <3300000>;
+					regulator-max-microvolt = <3300000>;
+					regulator-always-on;
+				};
+
+				ldo6_reg: ldo6 {
+					regulator-name = "avdd_dsi_csi,pwrdet_mipi";
+					regulator-min-microvolt = <1200000>;
+					regulator-max-microvolt = <1200000>;
+				};
+
+				ldo7_reg: ldo7 {
+					regulator-name = "vdd_pllm,x,u,a_p_c_s";
+					regulator-min-microvolt = <1200000>;
+					regulator-max-microvolt = <1200000>;
+					regulator-always-on;
+				};
+
+				ldo8_reg: ldo8 {
+					regulator-name = "vdd_ddr_hs";
+					regulator-min-microvolt = <1000000>;
+					regulator-max-microvolt = <1000000>;
+					regulator-always-on;
+				};
+			};
+		};
 	};
 
 	spi@7000da00 {
@@ -74,4 +200,240 @@
 		nvidia,vbus-gpio = <&gpio 236 0>;	/* PDD4 */
 		status = "okay";
 	};
+
+	regulators {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		vdd_ac_bat_reg: regulator@0 {
+			compatible = "regulator-fixed";
+			reg = <0>;
+			regulator-name = "vdd_ac_bat";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			regulator-always-on;
+		};
+
+		cam_1v8_reg: regulator@1 {
+			compatible = "regulator-fixed";
+			reg = <1>;
+			regulator-name = "cam_1v8";
+			regulator-min-microvolt = <1800000>;
+			regulator-max-microvolt = <1800000>;
+			enable-active-high;
+			gpio = <&gpio TEGRA_GPIO(BB, 4) GPIO_ACTIVE_HIGH>;
+			vin-supply = <&vio_reg>;
+		};
+
+		cp_5v_reg: regulator@2 {
+			compatible = "regulator-fixed";
+			reg = <2>;
+			regulator-name = "cp_5v";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			regulator-boot-on;
+			regulator-always-on;
+			enable-active-high;
+			gpio = <&pmic 0 GPIO_ACTIVE_HIGH>;
+		};
+
+		emmc_3v3_reg: regulator@3 {
+			compatible = "regulator-fixed";
+			reg = <3>;
+			regulator-name = "emmc_3v3";
+			regulator-min-microvolt = <3300000>;
+			regulator-max-microvolt = <3300000>;
+			regulator-always-on;
+			regulator-boot-on;
+			enable-active-high;
+			gpio = <&gpio TEGRA_GPIO(D, 1) GPIO_ACTIVE_HIGH>;
+			vin-supply = <&sys_3v3_reg>;
+		};
+
+		modem_3v3_reg: regulator@4 {
+			compatible = "regulator-fixed";
+			reg = <4>;
+			regulator-name = "modem_3v3";
+			regulator-min-microvolt = <3300000>;
+			regulator-max-microvolt = <3300000>;
+			enable-active-high;
+			gpio = <&gpio TEGRA_GPIO(D, 6) GPIO_ACTIVE_HIGH>;
+		};
+
+		pex_hvdd_3v3_reg: regulator@5 {
+			compatible = "regulator-fixed";
+			reg = <5>;
+			regulator-name = "pex_hvdd_3v3";
+			regulator-min-microvolt = <3300000>;
+			regulator-max-microvolt = <3300000>;
+			enable-active-high;
+			gpio = <&gpio TEGRA_GPIO(L, 7) GPIO_ACTIVE_HIGH>;
+			vin-supply = <&sys_3v3_reg>;
+		};
+
+		vdd_cam1_ldo_reg: regulator@6 {
+			compatible = "regulator-fixed";
+			reg = <6>;
+			regulator-name = "vdd_cam1_ldo";
+			regulator-min-microvolt = <2800000>;
+			regulator-max-microvolt = <2800000>;
+			enable-active-high;
+			gpio = <&gpio TEGRA_GPIO(R, 6) GPIO_ACTIVE_HIGH>;
+			vin-supply = <&sys_3v3_reg>;
+		};
+
+		vdd_cam2_ldo_reg: regulator@7 {
+			compatible = "regulator-fixed";
+			reg = <7>;
+			regulator-name = "vdd_cam2_ldo";
+			regulator-min-microvolt = <2800000>;
+			regulator-max-microvolt = <2800000>;
+			enable-active-high;
+			gpio = <&gpio TEGRA_GPIO(R, 7) GPIO_ACTIVE_HIGH>;
+			vin-supply = <&sys_3v3_reg>;
+		};
+
+		vdd_cam3_ldo_reg: regulator@8 {
+			compatible = "regulator-fixed";
+			reg = <8>;
+			regulator-name = "vdd_cam3_ldo";
+			regulator-min-microvolt = <3300000>;
+			regulator-max-microvolt = <3300000>;
+			enable-active-high;
+			gpio = <&gpio TEGRA_GPIO(S, 0) GPIO_ACTIVE_HIGH>;
+			vin-supply = <&sys_3v3_reg>;
+		};
+
+		vdd_com_reg: regulator@9 {
+			compatible = "regulator-fixed";
+			reg = <9>;
+			regulator-name = "vdd_com";
+			regulator-min-microvolt = <3300000>;
+			regulator-max-microvolt = <3300000>;
+			regulator-always-on;
+			regulator-boot-on;
+			enable-active-high;
+			gpio = <&gpio TEGRA_GPIO(D, 0) GPIO_ACTIVE_HIGH>;
+			vin-supply = <&sys_3v3_reg>;
+		};
+
+		vdd_fuse_3v3_reg: regulator@10 {
+			compatible = "regulator-fixed";
+			reg = <10>;
+			regulator-name = "vdd_fuse_3v3";
+			regulator-min-microvolt = <3300000>;
+			regulator-max-microvolt = <3300000>;
+			enable-active-high;
+			gpio = <&gpio TEGRA_GPIO(L, 6) GPIO_ACTIVE_HIGH>;
+			vin-supply = <&sys_3v3_reg>;
+		};
+
+		vdd_pnl1_reg: regulator@11 {
+			compatible = "regulator-fixed";
+			reg = <11>;
+			regulator-name = "vdd_pnl1";
+			regulator-min-microvolt = <3300000>;
+			regulator-max-microvolt = <3300000>;
+			regulator-always-on;
+			regulator-boot-on;
+			enable-active-high;
+			gpio = <&gpio TEGRA_GPIO(L, 4) GPIO_ACTIVE_HIGH>;
+			vin-supply = <&sys_3v3_reg>;
+		};
+
+		vdd_vid_reg: regulator@12 {
+			compatible = "regulator-fixed";
+			reg = <12>;
+			regulator-name = "vddio_vid";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			enable-active-high;
+			gpio = <&gpio TEGRA_GPIO(T, 0) GPIO_ACTIVE_HIGH>;
+			gpio-open-drain;
+			vin-supply = <&vdd_5v0_reg>;
+		};
+
+		ddr_reg: regulator@100 {
+			compatible = "regulator-fixed";
+			regulator-name = "ddr";
+			reg = <100>;
+			regulator-min-microvolt = <1500000>;
+			regulator-max-microvolt = <1500000>;
+			regulator-always-on;
+			regulator-boot-on;
+			enable-active-high;
+			gpio = <&pmic 7 GPIO_ACTIVE_HIGH>;
+		};
+
+		sys_3v3_reg: regulator@101 {
+			compatible = "regulator-fixed";
+			reg = <101>;
+			regulator-name = "sys_3v3";
+			regulator-min-microvolt = <3300000>;
+			regulator-max-microvolt = <3300000>;
+			regulator-always-on;
+			regulator-boot-on;
+			enable-active-high;
+			gpio = <&pmic 6 GPIO_ACTIVE_HIGH>;
+		};
+
+		usb1_vbus_reg: regulator@102 {
+			compatible = "regulator-fixed";
+			reg = <102>;
+			regulator-name = "usb1_vbus";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			enable-active-high;
+			gpio = <&gpio TEGRA_GPIO(DD, 6) GPIO_ACTIVE_HIGH>;
+			gpio-open-drain;
+			vin-supply = <&vdd_5v0_reg>;
+		};
+
+		usb3_vbus_reg: regulator@103 {
+			compatible = "regulator-fixed";
+			reg = <103>;
+			regulator-name = "usb3_vbus";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			enable-active-high;
+			gpio = <&gpio TEGRA_GPIO(DD, 4) GPIO_ACTIVE_HIGH>;
+			gpio-open-drain;
+			vin-supply = <&vdd_5v0_reg>;
+		};
+
+		vdd_5v0_reg: regulator@104 {
+			compatible = "regulator-fixed";
+			reg = <104>;
+			regulator-name = "5v0";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			enable-active-high;
+			gpio = <&pmic 8 GPIO_ACTIVE_HIGH>;
+		};
+
+		vdd_bl_reg: regulator@105 {
+			compatible = "regulator-fixed";
+			reg = <105>;
+			regulator-name = "vdd_bl";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			regulator-always-on;
+			regulator-boot-on;
+			enable-active-high;
+			gpio = <&gpio TEGRA_GPIO(DD, 2) GPIO_ACTIVE_HIGH>;
+		};
+
+		vdd_bl2_reg: regulator@106 {
+			compatible = "regulator-fixed";
+			reg = <106>;
+			regulator-name = "vdd_bl2";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			regulator-always-on;
+			regulator-boot-on;
+			enable-active-high;
+			gpio = <&gpio TEGRA_GPIO(DD, 0) GPIO_ACTIVE_HIGH>;
+		};
+	};
 };
diff --git a/arch/arm/dts/tegra30-colibri.dts b/arch/arm/dts/tegra30-colibri.dts
index 572520a..37b6abd 100644
--- a/arch/arm/dts/tegra30-colibri.dts
+++ b/arch/arm/dts/tegra30-colibri.dts
@@ -27,8 +27,10 @@
 		reg = <0x80000000 0x40000000>;
 	};
 
-	/* GEN1_I2C: I2C_SDA/SCL on SODIMM pin 194/196 (e.g. RTC on carrier
-	   board) */
+	/*
+	 * GEN1_I2C: I2C_SDA/SCL on SODIMM pin 194/196 (e.g. RTC on carrier
+	 * board)
+	 */
 	i2c@7000c000 {
 		status = "okay";
 		clock-frequency = <100000>;
@@ -44,8 +46,10 @@
 		clock-frequency = <100000>;
 	};
 
-	/* PWR_I2C: power I2C to audio codec, PMIC, temperature sensor and
-	   touch screen controller */
+	/*
+	 * PWR_I2C: power I2C to audio codec, PMIC, temperature sensor and
+	 * touch screen controller
+	 */
 	i2c@7000d000 {
 		status = "okay";
 		clock-frequency = <100000>;
diff --git a/arch/arm/dts/tegra30.dtsi b/arch/arm/dts/tegra30.dtsi
index fb92a0f..5ea7e34 100644
--- a/arch/arm/dts/tegra30.dtsi
+++ b/arch/arm/dts/tegra30.dtsi
@@ -6,6 +6,89 @@
 
 / {
 	compatible = "nvidia,tegra30";
+	interrupt-parent = <&intc>;
+
+	intc: interrupt-controller@50041000 {
+		compatible = "arm,cortex-a9-gic";
+		reg = <0x50041000 0x1000
+		       0x50040100 0x0100>;
+		interrupt-controller;
+		#interrupt-cells = <3>;
+	};
+
+	pcie-controller@00003000 {
+		compatible = "nvidia,tegra30-pcie";
+		device_type = "pci";
+		reg = <0x00003000 0x00000800   /* PADS registers */
+		       0x00003800 0x00000200   /* AFI registers */
+		       0x10000000 0x10000000>; /* configuration space */
+		reg-names = "pads", "afi", "cs";
+		interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH   /* controller interrupt */
+		              GIC_SPI 99 IRQ_TYPE_LEVEL_HIGH>; /* MSI interrupt */
+		interrupt-names = "intr", "msi";
+
+		#interrupt-cells = <1>;
+		interrupt-map-mask = <0 0 0 0>;
+		interrupt-map = <0 0 0 0 &intc GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>;
+
+		bus-range = <0x00 0xff>;
+		#address-cells = <3>;
+		#size-cells = <2>;
+
+		ranges = <0x82000000 0 0x00000000 0x00000000 0 0x00001000   /* port 0 configuration space */
+			  0x82000000 0 0x00001000 0x00001000 0 0x00001000   /* port 1 configuration space */
+			  0x82000000 0 0x00004000 0x00004000 0 0x00001000   /* port 2 configuration space */
+			  0x81000000 0 0          0x02000000 0 0x00010000   /* downstream I/O */
+			  0x82000000 0 0x20000000 0x20000000 0 0x10000000   /* non-prefetchable memory */
+			  0xc2000000 0 0x30000000 0x30000000 0 0x10000000>; /* prefetchable memory */
+
+		clocks = <&tegra_car TEGRA30_CLK_PCIE>,
+			 <&tegra_car TEGRA30_CLK_AFI>,
+			 <&tegra_car TEGRA30_CLK_PCIEX>,
+			 <&tegra_car TEGRA30_CLK_PLL_E>,
+			 <&tegra_car TEGRA30_CLK_CML0>;
+		clock-names = "pex", "afi", "pcie_xclk", "pll_e", "cml";
+		status = "disabled";
+
+		pci@1,0 {
+			device_type = "pci";
+			assigned-addresses = <0x82000800 0 0x00000000 0 0x1000>;
+			reg = <0x000800 0 0 0 0>;
+			status = "disabled";
+
+			#address-cells = <3>;
+			#size-cells = <2>;
+			ranges;
+
+			nvidia,num-lanes = <2>;
+		};
+
+		pci@2,0 {
+			device_type = "pci";
+			assigned-addresses = <0x82001000 0 0x00001000 0 0x1000>;
+			reg = <0x001000 0 0 0 0>;
+			status = "disabled";
+
+			#address-cells = <3>;
+			#size-cells = <2>;
+			ranges;
+
+			nvidia,num-lanes = <2>;
+		};
+
+		pci@3,0 {
+			device_type = "pci";
+			assigned-addresses = <0x82001800 0 0x00004000 0 0x1000>;
+			reg = <0x001800 0 0 0 0>;
+			status = "disabled";
+
+			#address-cells = <3>;
+			#size-cells = <2>;
+			ranges;
+
+			nvidia,num-lanes = <2>;
+		};
+	};
 
 	tegra_car: clock {
 		compatible = "nvidia,tegra30-car";
diff --git a/arch/arm/include/asm/arch-tegra/powergate.h b/arch/arm/include/asm/arch-tegra/powergate.h
new file mode 100644
index 0000000..130b58b
--- /dev/null
+++ b/arch/arm/include/asm/arch-tegra/powergate.h
@@ -0,0 +1,38 @@
+#ifndef _TEGRA_POWERGATE_H_
+#define _TEGRA_POWERGATE_H_
+
+#include <asm/arch/clock.h>
+
+enum tegra_powergate {
+	TEGRA_POWERGATE_CPU,
+	TEGRA_POWERGATE_3D,
+	TEGRA_POWERGATE_VENC,
+	TEGRA_POWERGATE_PCIE,
+	TEGRA_POWERGATE_VDEC,
+	TEGRA_POWERGATE_L2,
+	TEGRA_POWERGATE_MPE,
+	TEGRA_POWERGATE_HEG,
+	TEGRA_POWERGATE_SATA,
+	TEGRA_POWERGATE_CPU1,
+	TEGRA_POWERGATE_CPU2,
+	TEGRA_POWERGATE_CPU3,
+	TEGRA_POWERGATE_CELP,
+	TEGRA_POWERGATE_3D1,
+	TEGRA_POWERGATE_CPU0,
+	TEGRA_POWERGATE_C0NC,
+	TEGRA_POWERGATE_C1NC,
+	TEGRA_POWERGATE_SOR,
+	TEGRA_POWERGATE_DIS,
+	TEGRA_POWERGATE_DISB,
+	TEGRA_POWERGATE_XUSBA,
+	TEGRA_POWERGATE_XUSBB,
+	TEGRA_POWERGATE_XUSBC,
+	TEGRA_POWERGATE_VIC,
+	TEGRA_POWERGATE_IRAM,
+};
+
+int tegra_powergate_sequence_power_up(enum tegra_powergate id,
+				      enum periph_id periph);
+int tegra_powergate_power_off(enum tegra_powergate id);
+
+#endif
diff --git a/arch/arm/include/asm/arch-tegra/xusb-padctl.h b/arch/arm/include/asm/arch-tegra/xusb-padctl.h
new file mode 100644
index 0000000..b4b4c8b
--- /dev/null
+++ b/arch/arm/include/asm/arch-tegra/xusb-padctl.h
@@ -0,0 +1,24 @@
+#ifndef _TEGRA_XUSB_PADCTL_H_
+#define _TEGRA_XUSB_PADCTL_H_
+
+struct tegra_xusb_phy;
+
+/**
+ * tegra_xusb_phy_get() - obtain a reference to a specified padctl PHY
+ * @type: the type of PHY to obtain
+ *
+ * The type of PHY varies between SoC generations. Typically there are XUSB,
+ * PCIe and SATA PHYs, though not all generations support all of them. The
+ * value of type can usually be directly parsed from a device tree.
+ *
+ * Return: a pointer to the PHY or NULL if no such PHY exists
+ */
+struct tegra_xusb_phy *tegra_xusb_phy_get(unsigned int type);
+
+void tegra_xusb_padctl_init(const void *fdt);
+int tegra_xusb_phy_prepare(struct tegra_xusb_phy *phy);
+int tegra_xusb_phy_enable(struct tegra_xusb_phy *phy);
+int tegra_xusb_phy_disable(struct tegra_xusb_phy *phy);
+int tegra_xusb_phy_unprepare(struct tegra_xusb_phy *phy);
+
+#endif
diff --git a/arch/arm/include/asm/arch-tegra114/powergate.h b/arch/arm/include/asm/arch-tegra114/powergate.h
new file mode 100644
index 0000000..260ea80
--- /dev/null
+++ b/arch/arm/include/asm/arch-tegra114/powergate.h
@@ -0,0 +1,6 @@
+#ifndef _TEGRA114_POWERGATE_H_
+#define _TEGRA114_POWERGATE_H_
+
+#include <asm/arch-tegra/powergate.h>
+
+#endif /* _TEGRA114_POWERGATE_H_ */
diff --git a/arch/arm/include/asm/arch-tegra124/clock.h b/arch/arm/include/asm/arch-tegra124/clock.h
index 8e39d21..8e65086 100644
--- a/arch/arm/include/asm/arch-tegra124/clock.h
+++ b/arch/arm/include/asm/arch-tegra124/clock.h
@@ -16,4 +16,6 @@
 #define OSC_FREQ_SHIFT          28
 #define OSC_FREQ_MASK           (0xF << OSC_FREQ_SHIFT)
 
+int tegra_plle_enable(void);
+
 #endif	/* _TEGRA124_CLOCK_H_ */
diff --git a/arch/arm/include/asm/arch-tegra124/powergate.h b/arch/arm/include/asm/arch-tegra124/powergate.h
new file mode 100644
index 0000000..8a0cfba
--- /dev/null
+++ b/arch/arm/include/asm/arch-tegra124/powergate.h
@@ -0,0 +1,6 @@
+#ifndef _TEGRA124_POWERGATE_H_
+#define _TEGRA124_POWERGATE_H_
+
+#include <asm/arch-tegra/powergate.h>
+
+#endif /* _TEGRA124_POWERGATE_H_ */
diff --git a/arch/arm/include/asm/arch-tegra20/clock-tables.h b/arch/arm/include/asm/arch-tegra20/clock-tables.h
index a09cb01..894be08 100644
--- a/arch/arm/include/asm/arch-tegra20/clock-tables.h
+++ b/arch/arm/include/asm/arch-tegra20/clock-tables.h
@@ -131,7 +131,7 @@ enum periph_id {
 	/* 72 */
 	PERIPH_ID_AFI,
 	PERIPH_ID_CORESIGHT,
-	PERIPH_ID_RESERVED74,
+	PERIPH_ID_PCIEXCLK,
 	PERIPH_ID_AVPUCQ,
 	PERIPH_ID_RESERVED76,
 	PERIPH_ID_RESERVED77,
diff --git a/arch/arm/include/asm/arch-tegra20/clock.h b/arch/arm/include/asm/arch-tegra20/clock.h
index 889c65a..4df8da9 100644
--- a/arch/arm/include/asm/arch-tegra20/clock.h
+++ b/arch/arm/include/asm/arch-tegra20/clock.h
@@ -15,4 +15,6 @@
 #define OSC_FREQ_SHIFT          30
 #define OSC_FREQ_MASK           (3U << OSC_FREQ_SHIFT)
 
+int tegra_plle_enable(void);
+
 #endif	/* _TEGRA20_CLOCK_H */
diff --git a/arch/arm/include/asm/arch-tegra20/powergate.h b/arch/arm/include/asm/arch-tegra20/powergate.h
new file mode 100644
index 0000000..439d88b
--- /dev/null
+++ b/arch/arm/include/asm/arch-tegra20/powergate.h
@@ -0,0 +1,6 @@
+#ifndef _TEGRA20_POWERGATE_H_
+#define _TEGRA20_POWERGATE_H_
+
+#include <asm/arch-tegra/powergate.h>
+
+#endif /* _TEGRA20_POWERGATE_H_ */
diff --git a/arch/arm/include/asm/arch-tegra30/clock.h b/arch/arm/include/asm/arch-tegra30/clock.h
index 2f24a75..410c352 100644
--- a/arch/arm/include/asm/arch-tegra30/clock.h
+++ b/arch/arm/include/asm/arch-tegra30/clock.h
@@ -25,4 +25,6 @@
 #define OSC_FREQ_SHIFT          28
 #define OSC_FREQ_MASK           (0xF << OSC_FREQ_SHIFT)
 
+int tegra_plle_enable(void);
+
 #endif	/* _TEGRA30_CLOCK_H_ */
diff --git a/arch/arm/include/asm/arch-tegra30/powergate.h b/arch/arm/include/asm/arch-tegra30/powergate.h
new file mode 100644
index 0000000..c70e44b
--- /dev/null
+++ b/arch/arm/include/asm/arch-tegra30/powergate.h
@@ -0,0 +1,6 @@
+#ifndef _TEGRA30_POWERGATE_H_
+#define _TEGRA30_POWERGATE_H_
+
+#include <asm/arch-tegra/powergate.h>
+
+#endif /* _TEGRA30_POWERGATE_H_ */
diff --git a/arch/arm/include/asm/system.h b/arch/arm/include/asm/system.h
index 61e2914..89f2294 100644
--- a/arch/arm/include/asm/system.h
+++ b/arch/arm/include/asm/system.h
@@ -212,6 +212,11 @@ void mmu_set_region_dcache_behaviour(phys_addr_t start, size_t size,
  */
 void mmu_page_table_flush(unsigned long start, unsigned long stop);
 
+#ifdef CONFIG_SYS_NONCACHED_MEMORY
+void noncached_init(void);
+phys_addr_t noncached_alloc(size_t size, size_t align);
+#endif /* CONFIG_SYS_NONCACHED_MEMORY */
+
 #endif /* __ASSEMBLY__ */
 
 #define arch_align_stack(x) (x)
diff --git a/arch/arm/lib/cache.c b/arch/arm/lib/cache.c
index f1c0792..9cedeac 100644
--- a/arch/arm/lib/cache.c
+++ b/arch/arm/lib/cache.c
@@ -8,6 +8,7 @@
 /* for now: just dummy functions to satisfy the linker */
 
 #include <common.h>
+#include <malloc.h>
 
 __weak void flush_cache(unsigned long start, unsigned long size)
 {
@@ -49,3 +50,46 @@ __weak void enable_caches(void)
 {
 	puts("WARNING: Caches not enabled\n");
 }
+
+#ifdef CONFIG_SYS_NONCACHED_MEMORY
+/*
+ * Reserve one MMU section worth of address space below the malloc() area that
+ * will be mapped uncached.
+ */
+static unsigned long noncached_start;
+static unsigned long noncached_end;
+static unsigned long noncached_next;
+
+void noncached_init(void)
+{
+	phys_addr_t start, end;
+	size_t size;
+
+	end = ALIGN(mem_malloc_start, MMU_SECTION_SIZE) - MMU_SECTION_SIZE;
+	size = ALIGN(CONFIG_SYS_NONCACHED_MEMORY, MMU_SECTION_SIZE);
+	start = end - size;
+
+	debug("mapping memory %pa-%pa non-cached\n", &start, &end);
+
+	noncached_start = start;
+	noncached_end = end;
+	noncached_next = start;
+
+#ifndef CONFIG_SYS_DCACHE_OFF
+	mmu_set_region_dcache_behaviour(noncached_start, size, DCACHE_OFF);
+#endif
+}
+
+phys_addr_t noncached_alloc(size_t size, size_t align)
+{
+	phys_addr_t next = ALIGN(noncached_next, align);
+
+	if (next >= noncached_end || (noncached_end - next) < size)
+		return 0;
+
+	debug("allocated %zu bytes of uncached memory @%pa\n", size, &next);
+	noncached_next = next + size;
+
+	return next;
+}
+#endif /* CONFIG_SYS_NONCACHED_MEMORY */
diff --git a/board/compulab/trimslice/trimslice.c b/board/compulab/trimslice/trimslice.c
index 723293f..c9da80d 100644
--- a/board/compulab/trimslice/trimslice.c
+++ b/board/compulab/trimslice/trimslice.c
@@ -13,6 +13,7 @@
 #include <asm/arch/pinmux.h>
 #include <asm/gpio.h>
 #include <i2c.h>
+#include <netdev.h>
 
 void pin_mux_usb(void)
 {
@@ -40,3 +41,10 @@ void pin_mux_mmc(void)
 	/* For CD GPIO PP1 */
 	pinmux_tristate_disable(PMUX_PINGRP_DAP3);
 }
+
+#ifdef CONFIG_PCI
+int board_eth_init(bd_t *bis)
+{
+	return pci_eth_init(bis);
+}
+#endif
diff --git a/board/nvidia/cardhu/cardhu.c b/board/nvidia/cardhu/cardhu.c
index 026f45c..95c4ff2 100644
--- a/board/nvidia/cardhu/cardhu.c
+++ b/board/nvidia/cardhu/cardhu.c
@@ -9,8 +9,11 @@
 #include <dm.h>
 #include <asm/arch/pinmux.h>
 #include <asm/arch/gp_padctrl.h>
+#include <asm/arch/gpio.h>
+#include <asm/gpio.h>
 #include "pinmux-config-cardhu.h"
 #include <i2c.h>
+#include <netdev.h>
 
 #define PMU_I2C_ADDRESS		0x2D
 #define MAX_I2C_RETRY		3
@@ -83,3 +86,52 @@ void pin_mux_mmc(void)
 	board_sdmmc_voltage_init();
 }
 #endif	/* MMC */
+
+#ifdef CONFIG_PCI_TEGRA
+int tegra_pcie_board_init(void)
+{
+	struct udevice *dev;
+	u8 addr, data[1];
+	int err;
+
+	err = i2c_get_chip_for_busnum(0, PMU_I2C_ADDRESS, &dev);
+	if (err) {
+		debug("failed to find PMU bus\n");
+		return err;
+	}
+
+	/* TPS659110: LDO1_REG = 1.05V, ACTIVE */
+	data[0] = 0x15;
+	addr = 0x30;
+
+	err = i2c_write(dev, addr, data, 1);
+	if (err) {
+		debug("failed to set VDD supply\n");
+		return err;
+	}
+
+	/* GPIO: PEX = 3.3V */
+	err = gpio_request(GPIO_PL7, "PEX");
+	if (err < 0)
+		return err;
+
+	gpio_direction_output(GPIO_PL7, 1);
+
+	/* TPS659110: LDO2_REG = 1.05V, ACTIVE */
+	data[0] = 0x15;
+	addr = 0x31;
+
+	err = i2c_write(dev, addr, data, 1);
+	if (err) {
+		debug("failed to set AVDD supply\n");
+		return err;
+	}
+
+	return 0;
+}
+
+int board_eth_init(bd_t *bis)
+{
+	return pci_eth_init(bis);
+}
+#endif /* PCI */
diff --git a/board/nvidia/common/board.c b/board/nvidia/common/board.c
index 4bdbf01..80ef8fd 100644
--- a/board/nvidia/common/board.c
+++ b/board/nvidia/common/board.c
@@ -38,6 +38,7 @@
 #include <asm/arch-tegra/tegra_mmc.h>
 #include <asm/arch-tegra/mmc.h>
 #endif
+#include <asm/arch-tegra/xusb-padctl.h>
 #include <i2c.h>
 #include <spi.h>
 #include "emc.h"
@@ -137,6 +138,8 @@ int board_init(void)
 	pin_mux_nand();
 #endif
 
+	tegra_xusb_padctl_init(gd->fdt_blob);
+
 #ifdef CONFIG_TEGRA_LP0
 	/* save Sdram params to PMC 2, 4, and 24 for WB0 */
 	warmboot_save_sdram_params();
diff --git a/board/nvidia/jetson-tk1/jetson-tk1.c b/board/nvidia/jetson-tk1/jetson-tk1.c
index 5d37718..daa74a4 100644
--- a/board/nvidia/jetson-tk1/jetson-tk1.c
+++ b/board/nvidia/jetson-tk1/jetson-tk1.c
@@ -6,10 +6,16 @@
  */
 
 #include <common.h>
+#include <netdev.h>
+#include <power/as3722.h>
+
 #include <asm/arch/gpio.h>
 #include <asm/arch/pinmux.h>
+
 #include "pinmux-config-jetson-tk1.h"
 
+DECLARE_GLOBAL_DATA_PTR;
+
 /*
  * Routine: pinmux_init
  * Description: Do individual peripheral pinmux configs
@@ -27,3 +33,49 @@ void pinmux_init(void)
 	pinmux_config_drvgrp_table(jetson_tk1_drvgrps,
 				   ARRAY_SIZE(jetson_tk1_drvgrps));
 }
+
+#ifdef CONFIG_PCI_TEGRA
+int tegra_pcie_board_init(void)
+{
+	struct udevice *pmic;
+	int err;
+
+	err = as3722_init(&pmic);
+	if (err) {
+		error("failed to initialize AS3722 PMIC: %d\n", err);
+		return err;
+	}
+
+	err = as3722_sd_enable(pmic, 4);
+	if (err < 0) {
+		error("failed to enable SD4: %d\n", err);
+		return err;
+	}
+
+	err = as3722_sd_set_voltage(pmic, 4, 0x24);
+	if (err < 0) {
+		error("failed to set SD4 voltage: %d\n", err);
+		return err;
+	}
+
+	err = as3722_gpio_configure(pmic, 1, AS3722_GPIO_OUTPUT_VDDH |
+					     AS3722_GPIO_INVERT);
+	if (err < 0) {
+		error("failed to configure GPIO#1 as output: %d\n", err);
+		return err;
+	}
+
+	err = as3722_gpio_direction_output(pmic, 2, 1);
+	if (err < 0) {
+		error("failed to set GPIO#2 high: %d\n", err);
+		return err;
+	}
+
+	return 0;
+}
+
+int board_eth_init(bd_t *bis)
+{
+	return pci_eth_init(bis);
+}
+#endif /* PCI */
diff --git a/common/board_r.c b/common/board_r.c
index 4eb7a02..a301cc2 100644
--- a/common/board_r.c
+++ b/common/board_r.c
@@ -265,6 +265,14 @@ static int initr_malloc(void)
 	return 0;
 }
 
+#ifdef CONFIG_SYS_NONCACHED_MEMORY
+static int initr_noncached(void)
+{
+	noncached_init();
+	return 0;
+}
+#endif
+
 #ifdef CONFIG_DM
 static int initr_dm(void)
 {
@@ -687,6 +695,9 @@ init_fnc_t init_sequence_r[] = {
 #endif
 	initr_barrier,
 	initr_malloc,
+#ifdef CONFIG_SYS_NONCACHED_MEMORY
+	initr_noncached,
+#endif
 	bootstage_relocate,
 #ifdef CONFIG_DM
 	initr_dm,
diff --git a/drivers/net/rtl8169.c b/drivers/net/rtl8169.c
index c3ce175..cea6701 100644
--- a/drivers/net/rtl8169.c
+++ b/drivers/net/rtl8169.c
@@ -41,6 +41,7 @@
  * Modified to use le32_to_cpu and cpu_to_le32 properly
  */
 #include <common.h>
+#include <errno.h>
 #include <malloc.h>
 #include <net.h>
 #include <netdev.h>
@@ -79,7 +80,11 @@ static int media[MAX_UNITS] = { -1, -1, -1, -1, -1, -1, -1, -1 };
 #define InterFrameGap	0x03	/* 3 means InterFrameGap = the shortest one */
 
 #define NUM_TX_DESC	1	/* Number of Tx descriptor registers */
-#define NUM_RX_DESC	4	/* Number of Rx descriptor registers */
+#ifdef CONFIG_SYS_RX_ETH_BUFFER
+  #define NUM_RX_DESC	CONFIG_SYS_RX_ETH_BUFFER
+#else
+  #define NUM_RX_DESC	4	/* Number of Rx descriptor registers */
+#endif
 #define RX_BUF_SIZE	1536	/* Rx Buffer size */
 #define RX_BUF_LEN	8192
 
@@ -248,6 +253,7 @@ static struct {
 	{"RTL-8168b/8111sb",	0x38, 0xff7e1880,},
 	{"RTL-8168d/8111d",	0x28, 0xff7e1880,},
 	{"RTL-8168evl/8111evl",	0x2e, 0xff7e1880,},
+	{"RTL-8168/8111g",	0x4c, 0xff7e1880,},
 	{"RTL-8101e",		0x34, 0xff7e1880,},
 	{"RTL-8100e",		0x32, 0xff7e1880,},
 };
@@ -273,23 +279,40 @@ struct RxDesc {
 	u32 buf_Haddr;
 };
 
-/* Define the TX Descriptor */
-static u8 tx_ring[NUM_TX_DESC * sizeof(struct TxDesc) + 256];
-/*	__attribute__ ((aligned(256))); */
+#define RTL8169_DESC_SIZE 16
 
-/* Create a static buffer of size RX_BUF_SZ for each
-TX Descriptor.	All descriptors point to a
-part of this buffer */
-static unsigned char txb[NUM_TX_DESC * RX_BUF_SIZE];
+#if ARCH_DMA_MINALIGN > 256
+#  define RTL8169_ALIGN ARCH_DMA_MINALIGN
+#else
+#  define RTL8169_ALIGN 256
+#endif
 
-/* Define the RX Descriptor */
-static u8 rx_ring[NUM_RX_DESC * sizeof(struct TxDesc) + 256];
-  /*  __attribute__ ((aligned(256))); */
+/*
+ * Warn if the cache-line size is larger than the descriptor size. In such
+ * cases the driver will likely fail because the CPU needs to flush the cache
+ * when requeuing RX buffers, therefore descriptors written by the hardware
+ * may be discarded.
+ *
+ * This can be fixed by defining CONFIG_SYS_NONCACHED_MEMORY which will cause
+ * the driver to allocate descriptors from a pool of non-cached memory.
+ */
+#if RTL8169_DESC_SIZE < ARCH_DMA_MINALIGN
+#if !defined(CONFIG_SYS_NONCACHED_MEMORY) && !defined(CONFIG_SYS_DCACHE_OFF)
+#warning cache-line size is larger than descriptor size
+#endif
+#endif
 
-/* Create a static buffer of size RX_BUF_SZ for each
-RX Descriptor	All descriptors point to a
-part of this buffer */
-static unsigned char rxb[NUM_RX_DESC * RX_BUF_SIZE];
+/*
+ * Create a static buffer of size RX_BUF_SZ for each TX Descriptor. All
+ * descriptors point to a part of this buffer.
+ */
+DEFINE_ALIGN_BUFFER(u8, txb, NUM_TX_DESC * RX_BUF_SIZE, RTL8169_ALIGN);
+
+/*
+ * Create a static buffer of size RX_BUF_SZ for each RX Descriptor. All
+ * descriptors point to a part of this buffer.
+ */
+DEFINE_ALIGN_BUFFER(u8, rxb, NUM_RX_DESC * RX_BUF_SIZE, RTL8169_ALIGN);
 
 struct rtl8169_private {
 	void *mmio_addr;	/* memory map physical address */
@@ -297,8 +320,6 @@ struct rtl8169_private {
 	unsigned long cur_rx;	/* Index into the Rx descriptor buffer of next Rx pkt. */
 	unsigned long cur_tx;	/* Index into the Tx descriptor buffer of next Rx pkt. */
 	unsigned long dirty_tx;
-	unsigned char *TxDescArrays;	/* Index of Tx Descriptor buffer */
-	unsigned char *RxDescArrays;	/* Index of Rx Descriptor buffer */
 	struct TxDesc *TxDescArray;	/* Index of 256-alignment Tx Descriptor buffer */
 	struct RxDesc *RxDescArray;	/* Index of 256-alignment Rx Descriptor buffer */
 	unsigned char *RxBufferRings;	/* Index of Rx Buffer  */
@@ -398,34 +419,71 @@ match:
 }
 
 /*
+ * TX and RX descriptors are 16 bytes. This causes problems with the cache
+ * maintenance on CPUs where the cache-line size exceeds the size of these
+ * descriptors. What will happen is that when the driver receives a packet
+ * it will be immediately requeued for the hardware to reuse. The CPU will
+ * therefore need to flush the cache-line containing the descriptor, which
+ * will cause all other descriptors in the same cache-line to be flushed
+ * along with it. If one of those descriptors had been written to by the
+ * device those changes (and the associated packet) will be lost.
+ *
+ * To work around this, we make use of non-cached memory if available. If
+ * descriptors are mapped uncached there's no need to manually flush them
+ * or invalidate them.
+ *
+ * Note that this only applies to descriptors. The packet data buffers do
+ * not have the same constraints since they are 1536 bytes large, so they
+ * are unlikely to share cache-lines.
+ */
+static void *rtl_alloc_descs(unsigned int num)
+{
+	size_t size = num * RTL8169_DESC_SIZE;
+
+#ifdef CONFIG_SYS_NONCACHED_MEMORY
+	return (void *)noncached_alloc(size, RTL8169_ALIGN);
+#else
+	return memalign(RTL8169_ALIGN, size);
+#endif
+}
+
+/*
  * Cache maintenance functions. These are simple wrappers around the more
  * general purpose flush_cache() and invalidate_dcache_range() functions.
  */
 
 static void rtl_inval_rx_desc(struct RxDesc *desc)
 {
+#ifndef CONFIG_SYS_NONCACHED_MEMORY
 	unsigned long start = (unsigned long)desc & ~(ARCH_DMA_MINALIGN - 1);
 	unsigned long end = ALIGN(start + sizeof(*desc), ARCH_DMA_MINALIGN);
 
 	invalidate_dcache_range(start, end);
+#endif
 }
 
 static void rtl_flush_rx_desc(struct RxDesc *desc)
 {
+#ifndef CONFIG_SYS_NONCACHED_MEMORY
 	flush_cache((unsigned long)desc, sizeof(*desc));
+#endif
 }
 
 static void rtl_inval_tx_desc(struct TxDesc *desc)
 {
+#ifndef CONFIG_SYS_NONCACHED_MEMORY
 	unsigned long start = (unsigned long)desc & ~(ARCH_DMA_MINALIGN - 1);
 	unsigned long end = ALIGN(start + sizeof(*desc), ARCH_DMA_MINALIGN);
 
 	invalidate_dcache_range(start, end);
+#endif
 }
 
 static void rtl_flush_tx_desc(struct TxDesc *desc)
 {
+#ifndef CONFIG_SYS_NONCACHED_MEMORY
 	flush_cache((unsigned long)desc, sizeof(*desc));
+#endif
 }
 
 static void rtl_inval_buffer(void *buf, size_t size)
@@ -707,16 +765,6 @@ static int rtl_reset(struct eth_device *dev, bd_t *bis)
 	printf ("%s\n", __FUNCTION__);
 #endif
 
-	tpc->TxDescArrays = tx_ring;
-	/* Tx Desscriptor needs 256 bytes alignment; */
-	tpc->TxDescArray = (struct TxDesc *) ((unsigned long)(tpc->TxDescArrays +
-							      255) & ~255);
-
-	tpc->RxDescArrays = rx_ring;
-	/* Rx Desscriptor needs 256 bytes alignment; */
-	tpc->RxDescArray = (struct RxDesc *) ((unsigned long)(tpc->RxDescArrays +
-							      255) & ~255);
-
 	rtl8169_init_ring(dev);
 	rtl8169_hw_start(dev);
 	/* Construct a perfect filter frame with the mac address as first match
@@ -758,10 +806,6 @@ static void rtl_halt(struct eth_device *dev)
 
 	RTL_W32(RxMissed, 0);
 
-	tpc->TxDescArrays = NULL;
-	tpc->RxDescArrays = NULL;
-	tpc->TxDescArray = NULL;
-	tpc->RxDescArray = NULL;
 	for (i = 0; i < NUM_RX_DESC; i++) {
 		tpc->RxBufferRing[i] = NULL;
 	}
@@ -906,7 +950,16 @@ static int rtl_init(struct eth_device *dev, bd_t *bis)
 #endif
 	}
 
-	return 1;
+
+	tpc->RxDescArray = rtl_alloc_descs(NUM_RX_DESC);
+	if (!tpc->RxDescArray)
+		return -ENOMEM;
+
+	tpc->TxDescArray = rtl_alloc_descs(NUM_TX_DESC);
+	if (!tpc->TxDescArray)
+		return -ENOMEM;
+
+	return 0;
 }
 
 int rtl8169_initialize(bd_t *bis)
@@ -920,6 +973,7 @@ int rtl8169_initialize(bd_t *bis)
 	while(1){
 		unsigned int region;
 		u16 device;
+		int err;
 
 		/* Find RTL8169 */
 		if ((devno = pci_find_devices(supported, idx++)) < 0)
@@ -958,9 +1012,14 @@ int rtl8169_initialize(bd_t *bis)
 		dev->send = rtl_send;
 		dev->recv = rtl_recv;
 
-		eth_register (dev);
+		err = rtl_init(dev, bis);
+		if (err < 0) {
+			printf(pr_fmt("failed to initialize card: %d\n"), err);
+			free(dev);
+			continue;
+		}
 
-		rtl_init(dev, bis);
+		eth_register (dev);
 
 		card_number++;
 	}
diff --git a/drivers/pci/Makefile b/drivers/pci/Makefile
index 85e82bd..50b7be5 100644
--- a/drivers/pci/Makefile
+++ b/drivers/pci/Makefile
@@ -15,6 +15,7 @@ obj-$(CONFIG_FTPCI100) += pci_ftpci100.o
 obj-$(CONFIG_SH4_PCI) += pci_sh4.o
 obj-$(CONFIG_SH7751_PCI) +=pci_sh7751.o
 obj-$(CONFIG_SH7780_PCI) +=pci_sh7780.o
+obj-$(CONFIG_PCI_TEGRA) += pci_tegra.o
 obj-$(CONFIG_TSI108_PCI) += tsi108_pci.o
 obj-$(CONFIG_WINBOND_83C553) += w83c553f.o
 obj-$(CONFIG_PCIE_LAYERSCAPE) += pcie_layerscape.o
diff --git a/drivers/pci/pci_tegra.c b/drivers/pci/pci_tegra.c
new file mode 100644
index 0000000..a03ad5f
--- /dev/null
+++ b/drivers/pci/pci_tegra.c
@@ -0,0 +1,1143 @@
+/*
+ * Copyright (c) 2010, CompuLab, Ltd.
+ * Author: Mike Rapoport <mike@compulab.co.il>
+ *
+ * Based on NVIDIA PCIe driver
+ * Copyright (c) 2008-2009, NVIDIA Corporation.
+ *
+ * Copyright (c) 2013-2014, NVIDIA Corporation.
+ *
+ * SPDX-License-Identifier:	GPL-2.0
+ */
+
+#define DEBUG
+#define pr_fmt(fmt) "tegra-pcie: " fmt
+
+#include <common.h>
+#include <errno.h>
+#include <fdtdec.h>
+#include <malloc.h>
+#include <pci.h>
+
+#include <asm/io.h>
+#include <asm/gpio.h>
+
+#include <asm/arch/clock.h>
+#include <asm/arch/powergate.h>
+#include <asm/arch-tegra/xusb-padctl.h>
+
+#include <linux/list.h>
+
+#include <dt-bindings/pinctrl/pinctrl-tegra-xusb.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define AFI_AXI_BAR0_SZ	0x00
+#define AFI_AXI_BAR1_SZ	0x04
+#define AFI_AXI_BAR2_SZ	0x08
+#define AFI_AXI_BAR3_SZ	0x0c
+#define AFI_AXI_BAR4_SZ	0x10
+#define AFI_AXI_BAR5_SZ	0x14
+
+#define AFI_AXI_BAR0_START	0x18
+#define AFI_AXI_BAR1_START	0x1c
+#define AFI_AXI_BAR2_START	0x20
+#define AFI_AXI_BAR3_START	0x24
+#define AFI_AXI_BAR4_START	0x28
+#define AFI_AXI_BAR5_START	0x2c
+
+#define AFI_FPCI_BAR0	0x30
+#define AFI_FPCI_BAR1	0x34
+#define AFI_FPCI_BAR2	0x38
+#define AFI_FPCI_BAR3	0x3c
+#define AFI_FPCI_BAR4	0x40
+#define AFI_FPCI_BAR5	0x44
+
+#define AFI_CACHE_BAR0_SZ	0x48
+#define AFI_CACHE_BAR0_ST	0x4c
+#define AFI_CACHE_BAR1_SZ	0x50
+#define AFI_CACHE_BAR1_ST	0x54
+
+#define AFI_MSI_BAR_SZ		0x60
+#define AFI_MSI_FPCI_BAR_ST	0x64
+#define AFI_MSI_AXI_BAR_ST	0x68
+
+#define AFI_CONFIGURATION		0xac
+#define  AFI_CONFIGURATION_EN_FPCI	(1 << 0)
+
+#define AFI_FPCI_ERROR_MASKS	0xb0
+
+#define AFI_INTR_MASK		0xb4
+#define  AFI_INTR_MASK_INT_MASK	(1 << 0)
+#define  AFI_INTR_MASK_MSI_MASK	(1 << 8)
+
+#define AFI_SM_INTR_ENABLE	0xc4
+#define  AFI_SM_INTR_INTA_ASSERT	(1 << 0)
+#define  AFI_SM_INTR_INTB_ASSERT	(1 << 1)
+#define  AFI_SM_INTR_INTC_ASSERT	(1 << 2)
+#define  AFI_SM_INTR_INTD_ASSERT	(1 << 3)
+#define  AFI_SM_INTR_INTA_DEASSERT	(1 << 4)
+#define  AFI_SM_INTR_INTB_DEASSERT	(1 << 5)
+#define  AFI_SM_INTR_INTC_DEASSERT	(1 << 6)
+#define  AFI_SM_INTR_INTD_DEASSERT	(1 << 7)
+
+#define AFI_AFI_INTR_ENABLE		0xc8
+#define  AFI_INTR_EN_INI_SLVERR		(1 << 0)
+#define  AFI_INTR_EN_INI_DECERR		(1 << 1)
+#define  AFI_INTR_EN_TGT_SLVERR		(1 << 2)
+#define  AFI_INTR_EN_TGT_DECERR		(1 << 3)
+#define  AFI_INTR_EN_TGT_WRERR		(1 << 4)
+#define  AFI_INTR_EN_DFPCI_DECERR	(1 << 5)
+#define  AFI_INTR_EN_AXI_DECERR		(1 << 6)
+#define  AFI_INTR_EN_FPCI_TIMEOUT	(1 << 7)
+#define  AFI_INTR_EN_PRSNT_SENSE	(1 << 8)
+
+#define AFI_PCIE_CONFIG					0x0f8
+#define  AFI_PCIE_CONFIG_PCIE_DISABLE(x)		(1 << ((x) + 1))
+#define  AFI_PCIE_CONFIG_PCIE_DISABLE_ALL		0xe
+#define  AFI_PCIE_CONFIG_SM2TMS0_XBAR_CONFIG_MASK	(0xf << 20)
+#define  AFI_PCIE_CONFIG_SM2TMS0_XBAR_CONFIG_SINGLE	(0x0 << 20)
+#define  AFI_PCIE_CONFIG_SM2TMS0_XBAR_CONFIG_420	(0x0 << 20)
+#define  AFI_PCIE_CONFIG_SM2TMS0_XBAR_CONFIG_X2_X1	(0x0 << 20)
+#define  AFI_PCIE_CONFIG_SM2TMS0_XBAR_CONFIG_DUAL	(0x1 << 20)
+#define  AFI_PCIE_CONFIG_SM2TMS0_XBAR_CONFIG_222	(0x1 << 20)
+#define  AFI_PCIE_CONFIG_SM2TMS0_XBAR_CONFIG_X4_X1	(0x1 << 20)
+#define  AFI_PCIE_CONFIG_SM2TMS0_XBAR_CONFIG_411	(0x2 << 20)
+
+#define AFI_FUSE			0x104
+#define  AFI_FUSE_PCIE_T0_GEN2_DIS	(1 << 2)
+
+#define AFI_PEX0_CTRL			0x110
+#define AFI_PEX1_CTRL			0x118
+#define AFI_PEX2_CTRL			0x128
+#define  AFI_PEX_CTRL_RST		(1 << 0)
+#define  AFI_PEX_CTRL_CLKREQ_EN		(1 << 1)
+#define  AFI_PEX_CTRL_REFCLK_EN		(1 << 3)
+#define  AFI_PEX_CTRL_OVERRIDE_EN	(1 << 4)
+
+#define AFI_PLLE_CONTROL		0x160
+#define  AFI_PLLE_CONTROL_BYPASS_PADS2PLLE_CONTROL (1 << 9)
+#define  AFI_PLLE_CONTROL_PADS2PLLE_CONTROL_EN (1 << 1)
+
+#define AFI_PEXBIAS_CTRL_0		0x168
+
+#define PADS_CTL_SEL		0x0000009C
+
+#define PADS_CTL		0x000000A0
+#define  PADS_CTL_IDDQ_1L	(1 <<  0)
+#define  PADS_CTL_TX_DATA_EN_1L	(1 <<  6)
+#define  PADS_CTL_RX_DATA_EN_1L	(1 << 10)
+
+#define PADS_PLL_CTL_TEGRA20			0x000000B8
+#define PADS_PLL_CTL_TEGRA30			0x000000B4
+#define  PADS_PLL_CTL_RST_B4SM			(0x1 <<  1)
+#define  PADS_PLL_CTL_LOCKDET			(0x1 <<  8)
+#define  PADS_PLL_CTL_REFCLK_MASK		(0x3 << 16)
+#define  PADS_PLL_CTL_REFCLK_INTERNAL_CML	(0x0 << 16)
+#define  PADS_PLL_CTL_REFCLK_INTERNAL_CMOS	(0x1 << 16)
+#define  PADS_PLL_CTL_REFCLK_EXTERNAL		(0x2 << 16)
+#define  PADS_PLL_CTL_TXCLKREF_MASK		(0x1 << 20)
+#define  PADS_PLL_CTL_TXCLKREF_DIV10		(0x0 << 20)
+#define  PADS_PLL_CTL_TXCLKREF_DIV5		(0x1 << 20)
+#define  PADS_PLL_CTL_TXCLKREF_BUF_EN		(0x1 << 22)
+
+#define PADS_REFCLK_CFG0			0x000000C8
+#define PADS_REFCLK_CFG1			0x000000CC
+
+/*
+ * Fields in PADS_REFCLK_CFG*. Those registers form an array of 16-bit
+ * entries, one entry per PCIe port. These field definitions and desired
+ * values aren't in the TRM, but do come from NVIDIA.
+ */
+#define PADS_REFCLK_CFG_TERM_SHIFT		2  /* 6:2 */
+#define PADS_REFCLK_CFG_E_TERM_SHIFT		7
+#define PADS_REFCLK_CFG_PREDI_SHIFT		8  /* 11:8 */
+#define PADS_REFCLK_CFG_DRVI_SHIFT		12 /* 15:12 */
+
+/* Default value provided by HW engineering is 0xfa5c */
+#define PADS_REFCLK_CFG_VALUE \
+	( \
+		(0x17 << PADS_REFCLK_CFG_TERM_SHIFT)   | \
+		(0    << PADS_REFCLK_CFG_E_TERM_SHIFT) | \
+		(0xa  << PADS_REFCLK_CFG_PREDI_SHIFT)  | \
+		(0xf  << PADS_REFCLK_CFG_DRVI_SHIFT)     \
+	)
+
+#define RP_VEND_XP	0x00000F00
+#define  RP_VEND_XP_DL_UP	(1 << 30)
+
+#define RP_PRIV_MISC	0x00000FE0
+#define  RP_PRIV_MISC_PRSNT_MAP_EP_PRSNT (0xE << 0)
+#define  RP_PRIV_MISC_PRSNT_MAP_EP_ABSNT (0xF << 0)
+
+#define RP_LINK_CONTROL_STATUS			0x00000090
+#define  RP_LINK_CONTROL_STATUS_DL_LINK_ACTIVE	0x20000000
+#define  RP_LINK_CONTROL_STATUS_LINKSTAT_MASK	0x3fff0000
+
+struct tegra_pcie;
+
+struct tegra_pcie_port {
+	struct tegra_pcie *pcie;
+
+	struct fdt_resource regs;
+	unsigned int num_lanes;
+	unsigned int index;
+
+	struct list_head list;
+};
+
+struct tegra_pcie_soc {
+	unsigned int num_ports;
+	unsigned long pads_pll_ctl;
+	unsigned long tx_ref_sel;
+	bool has_pex_clkreq_en;
+	bool has_pex_bias_ctrl;
+	bool has_cml_clk;
+	bool has_gen2;
+};
+
+struct tegra_pcie {
+	struct pci_controller hose;
+
+	struct fdt_resource pads;
+	struct fdt_resource afi;
+	struct fdt_resource cs;
+
+	struct fdt_resource prefetch;
+	struct fdt_resource mem;
+	struct fdt_resource io;
+
+	struct list_head ports;
+	unsigned long xbar;
+
+	const struct tegra_pcie_soc *soc;
+	struct tegra_xusb_phy *phy;
+};
+
+static inline struct tegra_pcie *to_tegra_pcie(struct pci_controller *hose)
+{
+	return container_of(hose, struct tegra_pcie, hose);
+}
+
+static void afi_writel(struct tegra_pcie *pcie, unsigned long value,
+		       unsigned long offset)
+{
+	writel(value, pcie->afi.start + offset);
+}
+
+static unsigned long afi_readl(struct tegra_pcie *pcie, unsigned long offset)
+{
+	return readl(pcie->afi.start + offset);
+}
+
+static void pads_writel(struct tegra_pcie *pcie, unsigned long value,
+			unsigned long offset)
+{
+	writel(value, pcie->pads.start + offset);
+}
+
+static unsigned long pads_readl(struct tegra_pcie *pcie, unsigned long offset)
+{
+	return readl(pcie->pads.start + offset);
+}
+
+static unsigned long rp_readl(struct tegra_pcie_port *port,
+			      unsigned long offset)
+{
+	return readl(port->regs.start + offset);
+}
+
+static void rp_writel(struct tegra_pcie_port *port, unsigned long value,
+		      unsigned long offset)
+{
+	writel(value, port->regs.start + offset);
+}
+
+static unsigned long tegra_pcie_conf_offset(pci_dev_t bdf, int where)
+{
+	return ((where & 0xf00) << 16) | (PCI_BUS(bdf) << 16) |
+	       (PCI_DEV(bdf) << 11) | (PCI_FUNC(bdf) << 8) |
+	       (where & 0xfc);
+}
+
+static int tegra_pcie_conf_address(struct tegra_pcie *pcie, pci_dev_t bdf,
+				   int where, unsigned long *address)
+{
+	unsigned int bus = PCI_BUS(bdf);
+
+	if (bus == 0) {
+		unsigned int dev = PCI_DEV(bdf);
+		struct tegra_pcie_port *port;
+
+		list_for_each_entry(port, &pcie->ports, list) {
+			if (port->index + 1 == dev) {
+				*address = port->regs.start + (where & ~3);
+				return 0;
+			}
+		}
+	} else {
+		*address = pcie->cs.start + tegra_pcie_conf_offset(bdf, where);
+		return 0;
+	}
+
+	return -1;
+}
+
+static int tegra_pcie_read_conf(struct pci_controller *hose, pci_dev_t bdf,
+				int where, u32 *value)
+{
+	struct tegra_pcie *pcie = to_tegra_pcie(hose);
+	unsigned long address;
+	int err;
+
+	err = tegra_pcie_conf_address(pcie, bdf, where, &address);
+	if (err < 0) {
+		*value = 0xffffffff;
+		return 1;
+	}
+
+	*value = readl(address);
+
+	/* fixup root port class */
+	if (PCI_BUS(bdf) == 0) {
+		if (where == PCI_CLASS_REVISION) {
+			*value &= ~0x00ff0000;
+			*value |= PCI_CLASS_BRIDGE_PCI << 16;
+		}
+	}
+
+	return 0;
+}
+
+static int tegra_pcie_write_conf(struct pci_controller *hose, pci_dev_t bdf,
+				 int where, u32 value)
+{
+	struct tegra_pcie *pcie = to_tegra_pcie(hose);
+	unsigned long address;
+	int err;
+
+	err = tegra_pcie_conf_address(pcie, bdf, where, &address);
+	if (err < 0)
+		return 1;
+
+	writel(value, address);
+
+	return 0;
+}
+
+static int tegra_pcie_port_parse_dt(const void *fdt, int node,
+				    struct tegra_pcie_port *port)
+{
+	const u32 *addr;
+	int len;
+
+	addr = fdt_getprop(fdt, node, "assigned-addresses", &len);
+	if (!addr) {
+		error("property \"assigned-addresses\" not found");
+		return -FDT_ERR_NOTFOUND;
+	}
+
+	port->regs.start = fdt32_to_cpu(addr[2]);
+	port->regs.end = port->regs.start + fdt32_to_cpu(addr[4]);
+
+	return 0;
+}
+
+static int tegra_pcie_get_xbar_config(const void *fdt, int node, u32 lanes,
+				      unsigned long *xbar)
+{
+	enum fdt_compat_id id = fdtdec_lookup(fdt, node);
+
+	switch (id) {
+	case COMPAT_NVIDIA_TEGRA20_PCIE:
+		switch (lanes) {
+		case 0x00000004:
+			debug("single-mode configuration\n");
+			*xbar = AFI_PCIE_CONFIG_SM2TMS0_XBAR_CONFIG_SINGLE;
+			return 0;
+
+		case 0x00000202:
+			debug("dual-mode configuration\n");
+			*xbar = AFI_PCIE_CONFIG_SM2TMS0_XBAR_CONFIG_DUAL;
+			return 0;
+		}
+		break;
+
+	case COMPAT_NVIDIA_TEGRA30_PCIE:
+		switch (lanes) {
+		case 0x00000204:
+			debug("4x1, 2x1 configuration\n");
+			*xbar = AFI_PCIE_CONFIG_SM2TMS0_XBAR_CONFIG_420;
+			return 0;
+
+		case 0x00020202:
+			debug("2x3 configuration\n");
+			*xbar = AFI_PCIE_CONFIG_SM2TMS0_XBAR_CONFIG_222;
+			return 0;
+
+		case 0x00010104:
+			debug("4x1, 1x2 configuration\n");
+			*xbar = AFI_PCIE_CONFIG_SM2TMS0_XBAR_CONFIG_411;
+			return 0;
+		}
+		break;
+
+	case COMPAT_NVIDIA_TEGRA124_PCIE:
+		switch (lanes) {
+		case 0x0000104:
+			debug("4x1, 1x1 configuration\n");
+			*xbar = AFI_PCIE_CONFIG_SM2TMS0_XBAR_CONFIG_X4_X1;
+			return 0;
+
+		case 0x0000102:
+			debug("2x1, 1x1 configuration\n");
+			*xbar = AFI_PCIE_CONFIG_SM2TMS0_XBAR_CONFIG_X2_X1;
+			return 0;
+		}
+		break;
+
+	default:
+		break;
+	}
+
+	return -FDT_ERR_NOTFOUND;
+}
+
+static int tegra_pcie_parse_dt_ranges(const void *fdt, int node,
+				      struct tegra_pcie *pcie)
+{
+	const u32 *ptr, *end;
+	int len;
+
+	ptr = fdt_getprop(fdt, node, "ranges", &len);
+	if (!ptr) {
+		error("missing \"ranges\" property");
+		return -FDT_ERR_NOTFOUND;
+	}
+
+	end = ptr + len / 4;
+
+	while (ptr < end) {
+		struct fdt_resource *res = NULL;
+		u32 space = fdt32_to_cpu(*ptr);
+
+		switch ((space >> 24) & 0x3) {
+		case 0x01:
+			res = &pcie->io;
+			break;
+
+		case 0x02: /* 32 bit */
+		case 0x03: /* 64 bit */
+			if (space & (1 << 30))
+				res = &pcie->prefetch;
+			else
+				res = &pcie->mem;
+
+			break;
+		}
+
+		if (res) {
+			res->start = fdt32_to_cpu(ptr[3]);
+			res->end = res->start + fdt32_to_cpu(ptr[5]);
+		}
+
+		ptr += 3 + 1 + 2;
+	}
+
+	debug("PCI regions:\n");
+	debug("  I/O: %#x-%#x\n", pcie->io.start, pcie->io.end);
+	debug("  non-prefetchable memory: %#x-%#x\n", pcie->mem.start,
+	      pcie->mem.end);
+	debug("  prefetchable memory: %#x-%#x\n", pcie->prefetch.start,
+	      pcie->prefetch.end);
+
+	return 0;
+}
+
+static int tegra_pcie_parse_port_info(const void *fdt, int node,
+				      unsigned int *index,
+				      unsigned int *lanes)
+{
+	pci_dev_t bdf;
+	int err;
+
+	err = fdtdec_get_int(fdt, node, "nvidia,num-lanes", 0);
+	if (err < 0) {
+		error("failed to parse \"nvidia,num-lanes\" property");
+		return err;
+	}
+
+	*lanes = err;
+
+	err = fdtdec_pci_get_bdf(fdt, node, &bdf);
+	if (err < 0) {
+		error("failed to parse \"reg\" property");
+		return err;
+	}
+
+	*index = PCI_DEV(bdf) - 1;
+
+	return 0;
+}
+
+static int tegra_pcie_parse_dt(const void *fdt, int node,
+			       struct tegra_pcie *pcie)
+{
+	int err, subnode;
+	u32 lanes = 0;
+
+	err = fdt_get_named_resource(fdt, node, "reg", "reg-names", "pads",
+				     &pcie->pads);
+	if (err < 0) {
+		error("resource \"pads\" not found");
+		return err;
+	}
+
+	err = fdt_get_named_resource(fdt, node, "reg", "reg-names", "afi",
+				     &pcie->afi);
+	if (err < 0) {
+		error("resource \"afi\" not found");
+		return err;
+	}
+
+	err = fdt_get_named_resource(fdt, node, "reg", "reg-names", "cs",
+				     &pcie->cs);
+	if (err < 0) {
+		error("resource \"cs\" not found");
+		return err;
+	}
+
+	pcie->phy = tegra_xusb_phy_get(TEGRA_XUSB_PADCTL_PCIE);
+	if (pcie->phy) {
+		err = tegra_xusb_phy_prepare(pcie->phy);
+		if (err < 0) {
+			error("failed to prepare PHY: %d", err);
+			return err;
+		}
+	}
+
+	err = tegra_pcie_parse_dt_ranges(fdt, node, pcie);
+	if (err < 0) {
+		error("failed to parse \"ranges\" property");
+		return err;
+	}
+
+	fdt_for_each_subnode(fdt, subnode, node) {
+		unsigned int index = 0, num_lanes = 0;
+		struct tegra_pcie_port *port;
+
+		err = tegra_pcie_parse_port_info(fdt, subnode, &index,
+						 &num_lanes);
+		if (err < 0) {
+			error("failed to obtain root port info");
+			continue;
+		}
+
+		lanes |= num_lanes << (index << 3);
+
+		if (!fdtdec_get_is_enabled(fdt, subnode))
+			continue;
+
+		port = malloc(sizeof(*port));
+		if (!port)
+			continue;
+
+		memset(port, 0, sizeof(*port));
+		port->num_lanes = num_lanes;
+		port->index = index;
+
+		err = tegra_pcie_port_parse_dt(fdt, subnode, port);
+		if (err < 0) {
+			free(port);
+			continue;
+		}
+
+		list_add_tail(&port->list, &pcie->ports);
+		port->pcie = pcie;
+	}
+
+	err = tegra_pcie_get_xbar_config(fdt, node, lanes, &pcie->xbar);
+	if (err < 0) {
+		error("invalid lane configuration");
+		return err;
+	}
+
+	return 0;
+}
+
+int __weak tegra_pcie_board_init(void)
+{
+	return 0;
+}
+
+static int tegra_pcie_power_on(struct tegra_pcie *pcie)
+{
+	const struct tegra_pcie_soc *soc = pcie->soc;
+	unsigned long value;
+	int err;
+
+	/* reset PCIEXCLK logic, AFI controller and PCIe controller */
+	reset_set_enable(PERIPH_ID_PCIEXCLK, 1);
+	reset_set_enable(PERIPH_ID_AFI, 1);
+	reset_set_enable(PERIPH_ID_PCIE, 1);
+
+	err = tegra_powergate_power_off(TEGRA_POWERGATE_PCIE);
+	if (err < 0) {
+		error("failed to power off PCIe partition: %d", err);
+		return err;
+	}
+
+	tegra_pcie_board_init();
+
+	err = tegra_powergate_sequence_power_up(TEGRA_POWERGATE_PCIE,
+						PERIPH_ID_PCIE);
+	if (err < 0) {
+		error("failed to power up PCIe partition: %d", err);
+		return err;
+	}
+
+	/* take AFI controller out of reset */
+	reset_set_enable(PERIPH_ID_AFI, 0);
+
+	/* enable AFI clock */
+	clock_enable(PERIPH_ID_AFI);
+
+	if (soc->has_cml_clk) {
+		/* enable CML clock */
+		value = readl(NV_PA_CLK_RST_BASE + 0x48c);
+		value |= (1 << 0);
+		value &= ~(1 << 1);
+		writel(value, NV_PA_CLK_RST_BASE + 0x48c);
+	}
+
+	err = tegra_plle_enable();
+	if (err < 0) {
+		error("failed to enable PLLE: %d\n", err);
+		return err;
+	}
+
+	return 0;
+}
+
+static int tegra_pcie_pll_wait(struct tegra_pcie *pcie, unsigned long timeout)
+{
+	const struct tegra_pcie_soc *soc = pcie->soc;
+	unsigned long start = get_timer(0);
+	u32 value;
+
+	while (get_timer(start) < timeout) {
+		value = pads_readl(pcie, soc->pads_pll_ctl);
+		if (value & PADS_PLL_CTL_LOCKDET)
+			return 0;
+	}
+
+	return -ETIMEDOUT;
+}
+
+static int tegra_pcie_phy_enable(struct tegra_pcie *pcie)
+{
+	const struct tegra_pcie_soc *soc = pcie->soc;
+	u32 value;
+	int err;
+
+	/* initialize internal PHY, enable up to 16 PCIe lanes */
+	pads_writel(pcie, 0, PADS_CTL_SEL);
+
+	/* override IDDQ to 1 on all 4 lanes */
+	value = pads_readl(pcie, PADS_CTL);
+	value |= PADS_CTL_IDDQ_1L;
+	pads_writel(pcie, value, PADS_CTL);
+
+	/*
+	 * Set up PHY PLL inputs select PLLE output as refclock, set TX
+	 * ref sel to div10 (not div5).
+	 */
+	value = pads_readl(pcie, soc->pads_pll_ctl);
+	value &= ~(PADS_PLL_CTL_REFCLK_MASK | PADS_PLL_CTL_TXCLKREF_MASK);
+	value |= PADS_PLL_CTL_REFCLK_INTERNAL_CML | soc->tx_ref_sel;
+	pads_writel(pcie, value, soc->pads_pll_ctl);
+
+	/* reset PLL */
+	value = pads_readl(pcie, soc->pads_pll_ctl);
+	value &= ~PADS_PLL_CTL_RST_B4SM;
+	pads_writel(pcie, value, soc->pads_pll_ctl);
+
+	udelay(20);
+
+	/* take PLL out of reset */
+	value = pads_readl(pcie, soc->pads_pll_ctl);
+	value |= PADS_PLL_CTL_RST_B4SM;
+	pads_writel(pcie, value, soc->pads_pll_ctl);
+
+	/* configure the reference clock driver */
+	value = PADS_REFCLK_CFG_VALUE | (PADS_REFCLK_CFG_VALUE << 16);
+	pads_writel(pcie, value, PADS_REFCLK_CFG0);
+
+	if (soc->num_ports > 2)
+		pads_writel(pcie, PADS_REFCLK_CFG_VALUE, PADS_REFCLK_CFG1);
+
+	/* wait for the PLL to lock */
+	err = tegra_pcie_pll_wait(pcie, 500);
+	if (err < 0) {
+		error("PLL failed to lock: %d", err);
+		return err;
+	}
+
+	/* turn off IDDQ override */
+	value = pads_readl(pcie, PADS_CTL);
+	value &= ~PADS_CTL_IDDQ_1L;
+	pads_writel(pcie, value, PADS_CTL);
+
+	/* enable TX/RX data */
+	value = pads_readl(pcie, PADS_CTL);
+	value |= PADS_CTL_TX_DATA_EN_1L | PADS_CTL_RX_DATA_EN_1L;
+	pads_writel(pcie, value, PADS_CTL);
+
+	return 0;
+}
+
+static int tegra_pcie_enable_controller(struct tegra_pcie *pcie)
+{
+	const struct tegra_pcie_soc *soc = pcie->soc;
+	struct tegra_pcie_port *port;
+	u32 value;
+	int err;
+
+	if (pcie->phy) {
+		value = afi_readl(pcie, AFI_PLLE_CONTROL);
+		value &= ~AFI_PLLE_CONTROL_BYPASS_PADS2PLLE_CONTROL;
+		value |= AFI_PLLE_CONTROL_PADS2PLLE_CONTROL_EN;
+		afi_writel(pcie, value, AFI_PLLE_CONTROL);
+	}
+
+	if (soc->has_pex_bias_ctrl)
+		afi_writel(pcie, 0, AFI_PEXBIAS_CTRL_0);
+
+	value = afi_readl(pcie, AFI_PCIE_CONFIG);
+	value &= ~AFI_PCIE_CONFIG_SM2TMS0_XBAR_CONFIG_MASK;
+	value |= AFI_PCIE_CONFIG_PCIE_DISABLE_ALL | pcie->xbar;
+
+	list_for_each_entry(port, &pcie->ports, list)
+		value &= ~AFI_PCIE_CONFIG_PCIE_DISABLE(port->index);
+
+	afi_writel(pcie, value, AFI_PCIE_CONFIG);
+
+	value = afi_readl(pcie, AFI_FUSE);
+
+	if (soc->has_gen2)
+		value &= ~AFI_FUSE_PCIE_T0_GEN2_DIS;
+	else
+		value |= AFI_FUSE_PCIE_T0_GEN2_DIS;
+
+	afi_writel(pcie, value, AFI_FUSE);
+
+	if (pcie->phy)
+		err = tegra_xusb_phy_enable(pcie->phy);
+	else
+		err = tegra_pcie_phy_enable(pcie);
+
+	if (err < 0) {
+		error("failed to power on PHY: %d\n", err);
+		return err;
+	}
+
+	/* take the PCIEXCLK logic out of reset */
+	reset_set_enable(PERIPH_ID_PCIEXCLK, 0);
+
+	/* finally enable PCIe */
+	value = afi_readl(pcie, AFI_CONFIGURATION);
+	value |= AFI_CONFIGURATION_EN_FPCI;
+	afi_writel(pcie, value, AFI_CONFIGURATION);
+
+	/* disable all interrupts */
+	afi_writel(pcie, 0, AFI_AFI_INTR_ENABLE);
+	afi_writel(pcie, 0, AFI_SM_INTR_ENABLE);
+	afi_writel(pcie, 0, AFI_INTR_MASK);
+	afi_writel(pcie, 0, AFI_FPCI_ERROR_MASKS);
+
+	return 0;
+}
+
+static void tegra_pcie_setup_translations(struct tegra_pcie *pcie)
+{
+	unsigned long fpci, axi, size;
+
+	/* BAR 0: type 1 extended configuration space */
+	fpci = 0xfe100000;
+	size = fdt_resource_size(&pcie->cs);
+	axi = pcie->cs.start;
+
+	afi_writel(pcie, axi, AFI_AXI_BAR0_START);
+	afi_writel(pcie, size >> 12, AFI_AXI_BAR0_SZ);
+	afi_writel(pcie, fpci, AFI_FPCI_BAR0);
+
+	/* BAR 1: downstream I/O */
+	fpci = 0xfdfc0000;
+	size = fdt_resource_size(&pcie->io);
+	axi = pcie->io.start;
+
+	afi_writel(pcie, axi, AFI_AXI_BAR1_START);
+	afi_writel(pcie, size >> 12, AFI_AXI_BAR1_SZ);
+	afi_writel(pcie, fpci, AFI_FPCI_BAR1);
+
+	/* BAR 2: prefetchable memory */
+	fpci = (((pcie->prefetch.start >> 12) & 0x0fffffff) << 4) | 0x1;
+	size = fdt_resource_size(&pcie->prefetch);
+	axi = pcie->prefetch.start;
+
+	afi_writel(pcie, axi, AFI_AXI_BAR2_START);
+	afi_writel(pcie, size >> 12, AFI_AXI_BAR2_SZ);
+	afi_writel(pcie, fpci, AFI_FPCI_BAR2);
+
+	/* BAR 3: non-prefetchable memory */
+	fpci = (((pcie->mem.start >> 12) & 0x0fffffff) << 4) | 0x1;
+	size = fdt_resource_size(&pcie->mem);
+	axi = pcie->mem.start;
+
+	afi_writel(pcie, axi, AFI_AXI_BAR3_START);
+	afi_writel(pcie, size >> 12, AFI_AXI_BAR3_SZ);
+	afi_writel(pcie, fpci, AFI_FPCI_BAR3);
+
+	/* NULL out the remaining BARs as they are not used */
+	afi_writel(pcie, 0, AFI_AXI_BAR4_START);
+	afi_writel(pcie, 0, AFI_AXI_BAR4_SZ);
+	afi_writel(pcie, 0, AFI_FPCI_BAR4);
+
+	afi_writel(pcie, 0, AFI_AXI_BAR5_START);
+	afi_writel(pcie, 0, AFI_AXI_BAR5_SZ);
+	afi_writel(pcie, 0, AFI_FPCI_BAR5);
+
+	/* map all upstream transactions as uncached */
+	afi_writel(pcie, NV_PA_SDRAM_BASE, AFI_CACHE_BAR0_ST);
+	afi_writel(pcie, 0, AFI_CACHE_BAR0_SZ);
+	afi_writel(pcie, 0, AFI_CACHE_BAR1_ST);
+	afi_writel(pcie, 0, AFI_CACHE_BAR1_SZ);
+
+	/* MSI translations are setup only when needed */
+	afi_writel(pcie, 0, AFI_MSI_FPCI_BAR_ST);
+	afi_writel(pcie, 0, AFI_MSI_BAR_SZ);
+	afi_writel(pcie, 0, AFI_MSI_AXI_BAR_ST);
+	afi_writel(pcie, 0, AFI_MSI_BAR_SZ);
+}
+
+static unsigned long tegra_pcie_port_get_pex_ctrl(struct tegra_pcie_port *port)
+{
+	unsigned long ret = 0;
+
+	switch (port->index) {
+	case 0:
+		ret = AFI_PEX0_CTRL;
+		break;
+
+	case 1:
+		ret = AFI_PEX1_CTRL;
+		break;
+
+	case 2:
+		ret = AFI_PEX2_CTRL;
+		break;
+	}
+
+	return ret;
+}
+
+static void tegra_pcie_port_reset(struct tegra_pcie_port *port)
+{
+	unsigned long ctrl = tegra_pcie_port_get_pex_ctrl(port);
+	unsigned long value;
+
+	/* pulse reset signel */
+	value = afi_readl(port->pcie, ctrl);
+	value &= ~AFI_PEX_CTRL_RST;
+	afi_writel(port->pcie, value, ctrl);
+
+	udelay(2000);
+
+	value = afi_readl(port->pcie, ctrl);
+	value |= AFI_PEX_CTRL_RST;
+	afi_writel(port->pcie, value, ctrl);
+}
+
+static void tegra_pcie_port_enable(struct tegra_pcie_port *port)
+{
+	unsigned long ctrl = tegra_pcie_port_get_pex_ctrl(port);
+	unsigned long value;
+
+	/* enable reference clock */
+	value = afi_readl(port->pcie, ctrl);
+	value |= AFI_PEX_CTRL_REFCLK_EN;
+
+	if (port->pcie->soc->has_pex_clkreq_en)
+		value |= AFI_PEX_CTRL_CLKREQ_EN;
+
+	value |= AFI_PEX_CTRL_OVERRIDE_EN;
+
+	afi_writel(port->pcie, value, ctrl);
+
+	tegra_pcie_port_reset(port);
+}
+
+static bool tegra_pcie_port_check_link(struct tegra_pcie_port *port)
+{
+	unsigned int retries = 3;
+	unsigned long value;
+
+	value = rp_readl(port, RP_PRIV_MISC);
+	value &= ~RP_PRIV_MISC_PRSNT_MAP_EP_ABSNT;
+	value |= RP_PRIV_MISC_PRSNT_MAP_EP_PRSNT;
+	rp_writel(port, value, RP_PRIV_MISC);
+
+	do {
+		unsigned int timeout = 200;
+
+		do {
+			value = rp_readl(port, RP_VEND_XP);
+			if (value & RP_VEND_XP_DL_UP)
+				break;
+
+			udelay(2000);
+		} while (--timeout);
+
+		if (!timeout) {
+			debug("link %u down, retrying\n", port->index);
+			goto retry;
+		}
+
+		timeout = 200;
+
+		do {
+			value = rp_readl(port, RP_LINK_CONTROL_STATUS);
+			if (value & RP_LINK_CONTROL_STATUS_DL_LINK_ACTIVE)
+				return true;
+
+			udelay(2000);
+		} while (--timeout);
+
+retry:
+		tegra_pcie_port_reset(port);
+	} while (--retries);
+
+	return false;
+}
+
+static void tegra_pcie_port_disable(struct tegra_pcie_port *port)
+{
+	unsigned long ctrl = tegra_pcie_port_get_pex_ctrl(port);
+	unsigned long value;
+
+	/* assert port reset */
+	value = afi_readl(port->pcie, ctrl);
+	value &= ~AFI_PEX_CTRL_RST;
+	afi_writel(port->pcie, value, ctrl);
+
+	/* disable reference clock */
+	value = afi_readl(port->pcie, ctrl);
+	value &= ~AFI_PEX_CTRL_REFCLK_EN;
+	afi_writel(port->pcie, value, ctrl);
+}
+
+static void tegra_pcie_port_free(struct tegra_pcie_port *port)
+{
+	list_del(&port->list);
+	free(port);
+}
+
+static int tegra_pcie_enable(struct tegra_pcie *pcie)
+{
+	struct tegra_pcie_port *port, *tmp;
+
+	list_for_each_entry_safe(port, tmp, &pcie->ports, list) {
+		debug("probing port %u, using %u lanes\n", port->index,
+		      port->num_lanes);
+
+		tegra_pcie_port_enable(port);
+
+		if (tegra_pcie_port_check_link(port))
+			continue;
+
+		debug("link %u down, ignoring\n", port->index);
+
+		tegra_pcie_port_disable(port);
+		tegra_pcie_port_free(port);
+	}
+
+	return 0;
+}
+
+static const struct tegra_pcie_soc tegra20_pcie_soc = {
+	.num_ports = 2,
+	.pads_pll_ctl = PADS_PLL_CTL_TEGRA20,
+	.tx_ref_sel = PADS_PLL_CTL_TXCLKREF_DIV10,
+	.has_pex_clkreq_en = false,
+	.has_pex_bias_ctrl = false,
+	.has_cml_clk = false,
+	.has_gen2 = false,
+};
+
+static const struct tegra_pcie_soc tegra30_pcie_soc = {
+	.num_ports = 3,
+	.pads_pll_ctl = PADS_PLL_CTL_TEGRA30,
+	.tx_ref_sel = PADS_PLL_CTL_TXCLKREF_BUF_EN,
+	.has_pex_clkreq_en = true,
+	.has_pex_bias_ctrl = true,
+	.has_cml_clk = true,
+	.has_gen2 = false,
+};
+
+static const struct tegra_pcie_soc tegra124_pcie_soc = {
+	.num_ports = 2,
+	.pads_pll_ctl = PADS_PLL_CTL_TEGRA30,
+	.tx_ref_sel = PADS_PLL_CTL_TXCLKREF_BUF_EN,
+	.has_pex_clkreq_en = true,
+	.has_pex_bias_ctrl = true,
+	.has_cml_clk = true,
+	.has_gen2 = true,
+};
+
+static int process_nodes(const void *fdt, int nodes[], unsigned int count)
+{
+	unsigned int i;
+
+	for (i = 0; i < count; i++) {
+		const struct tegra_pcie_soc *soc;
+		struct tegra_pcie *pcie;
+		enum fdt_compat_id id;
+		int err;
+
+		if (!fdtdec_get_is_enabled(fdt, nodes[i]))
+			continue;
+
+		id = fdtdec_lookup(fdt, nodes[i]);
+		switch (id) {
+		case COMPAT_NVIDIA_TEGRA20_PCIE:
+			soc = &tegra20_pcie_soc;
+			break;
+
+		case COMPAT_NVIDIA_TEGRA30_PCIE:
+			soc = &tegra30_pcie_soc;
+			break;
+
+		case COMPAT_NVIDIA_TEGRA124_PCIE:
+			soc = &tegra124_pcie_soc;
+			break;
+
+		default:
+			error("unsupported compatible: %s",
+			      fdtdec_get_compatible(id));
+			continue;
+		}
+
+		pcie = malloc(sizeof(*pcie));
+		if (!pcie) {
+			error("failed to allocate controller");
+			continue;
+		}
+
+		memset(pcie, 0, sizeof(*pcie));
+		pcie->soc = soc;
+
+		INIT_LIST_HEAD(&pcie->ports);
+
+		err = tegra_pcie_parse_dt(fdt, nodes[i], pcie);
+		if (err < 0) {
+			free(pcie);
+			continue;
+		}
+
+		err = tegra_pcie_power_on(pcie);
+		if (err < 0) {
+			error("failed to power on");
+			continue;
+		}
+
+		err = tegra_pcie_enable_controller(pcie);
+		if (err < 0) {
+			error("failed to enable controller");
+			continue;
+		}
+
+		tegra_pcie_setup_translations(pcie);
+
+		err = tegra_pcie_enable(pcie);
+		if (err < 0) {
+			error("failed to enable PCIe");
+			continue;
+		}
+
+		pcie->hose.first_busno = 0;
+		pcie->hose.current_busno = 0;
+		pcie->hose.last_busno = 0;
+
+		pci_set_region(&pcie->hose.regions[0], NV_PA_SDRAM_BASE,
+			       NV_PA_SDRAM_BASE, gd->ram_size,
+			       PCI_REGION_MEM | PCI_REGION_SYS_MEMORY);
+
+		pci_set_region(&pcie->hose.regions[1], pcie->io.start,
+			       pcie->io.start, fdt_resource_size(&pcie->io),
+			       PCI_REGION_IO);
+
+		pci_set_region(&pcie->hose.regions[2], pcie->mem.start,
+			       pcie->mem.start, fdt_resource_size(&pcie->mem),
+			       PCI_REGION_MEM);
+
+		pci_set_region(&pcie->hose.regions[3], pcie->prefetch.start,
+			       pcie->prefetch.start,
+			       fdt_resource_size(&pcie->prefetch),
+			       PCI_REGION_MEM | PCI_REGION_PREFETCH);
+
+		pcie->hose.region_count = 4;
+
+		pci_set_ops(&pcie->hose,
+			    pci_hose_read_config_byte_via_dword,
+			    pci_hose_read_config_word_via_dword,
+			    tegra_pcie_read_conf,
+			    pci_hose_write_config_byte_via_dword,
+			    pci_hose_write_config_word_via_dword,
+			    tegra_pcie_write_conf);
+
+		pci_register_hose(&pcie->hose);
+
+#ifdef CONFIG_PCI_SCAN_SHOW
+		printf("PCI: Enumerating devices...\n");
+		printf("---------------------------------------\n");
+		printf("  Device        ID          Description\n");
+		printf("  ------        --          -----------\n");
+#endif
+
+		pcie->hose.last_busno = pci_hose_scan(&pcie->hose);
+	}
+
+	return 0;
+}
+
+void pci_init_board(void)
+{
+	const void *fdt = gd->fdt_blob;
+	int count, nodes[1];
+
+	count = fdtdec_find_aliases_for_id(fdt, "pcie-controller",
+					   COMPAT_NVIDIA_TEGRA124_PCIE,
+					   nodes, ARRAY_SIZE(nodes));
+	if (process_nodes(fdt, nodes, count))
+		return;
+
+	count = fdtdec_find_aliases_for_id(fdt, "pcie-controller",
+					   COMPAT_NVIDIA_TEGRA30_PCIE,
+					   nodes, ARRAY_SIZE(nodes));
+	if (process_nodes(fdt, nodes, count))
+		return;
+
+	count = fdtdec_find_aliases_for_id(fdt, "pcie-controller",
+					   COMPAT_NVIDIA_TEGRA20_PCIE,
+					   nodes, ARRAY_SIZE(nodes));
+	if (process_nodes(fdt, nodes, count))
+		return;
+}
+
+int pci_skip_dev(struct pci_controller *hose, pci_dev_t dev)
+{
+	if (PCI_BUS(dev) != 0 && PCI_DEV(dev) > 0)
+		return 1;
+
+	return 0;
+}
diff --git a/drivers/power/Makefile b/drivers/power/Makefile
index 04bd996..2145652 100644
--- a/drivers/power/Makefile
+++ b/drivers/power/Makefile
@@ -5,6 +5,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
+obj-$(CONFIG_AS3722_POWER)	+= as3722.o
 obj-$(CONFIG_AXP152_POWER)	+= axp152.o
 obj-$(CONFIG_AXP209_POWER)	+= axp209.o
 obj-$(CONFIG_AXP221_POWER)	+= axp221.o
diff --git a/drivers/power/as3722.c b/drivers/power/as3722.c
new file mode 100644
index 0000000..4c6de79
--- /dev/null
+++ b/drivers/power/as3722.c
@@ -0,0 +1,264 @@
+/*
+ * Copyright (C) 2014 NVIDIA Corporation
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#define pr_fmt(fmt) "as3722: " fmt
+
+#include <common.h>
+#include <dm.h>
+#include <errno.h>
+#include <fdtdec.h>
+#include <i2c.h>
+
+#include <power/as3722.h>
+
+#define AS3722_SD_VOLTAGE(n) (0x00 + (n))
+#define AS3722_GPIO_CONTROL(n) (0x08 + (n))
+#define  AS3722_GPIO_CONTROL_MODE_OUTPUT_VDDH (1 << 0)
+#define  AS3722_GPIO_CONTROL_MODE_OUTPUT_VDDL (7 << 0)
+#define  AS3722_GPIO_CONTROL_INVERT (1 << 7)
+#define AS3722_LDO_VOLTAGE(n) (0x10 + (n))
+#define AS3722_GPIO_SIGNAL_OUT 0x20
+#define AS3722_SD_CONTROL 0x4d
+#define AS3722_LDO_CONTROL 0x4e
+#define AS3722_ASIC_ID1 0x90
+#define  AS3722_DEVICE_ID 0x0c
+#define AS3722_ASIC_ID2 0x91
+
+static int as3722_read(struct udevice *pmic, u8 reg, u8 *value)
+{
+	int err;
+
+	err = i2c_read(pmic, reg, value, 1);
+	if (err < 0)
+		return err;
+
+	return 0;
+}
+
+static int as3722_write(struct udevice *pmic, u8 reg, u8 value)
+{
+	int err;
+
+	err = i2c_write(pmic, reg, &value, 1);
+	if (err < 0)
+		return err;
+
+	return 0;
+}
+
+static int as3722_read_id(struct udevice *pmic, u8 *id, u8 *revision)
+{
+	int err;
+
+	err = as3722_read(pmic, AS3722_ASIC_ID1, id);
+	if (err) {
+		error("failed to read ID1 register: %d", err);
+		return err;
+	}
+
+	err = as3722_read(pmic, AS3722_ASIC_ID2, revision);
+	if (err) {
+		error("failed to read ID2 register: %d", err);
+		return err;
+	}
+
+	return 0;
+}
+
+int as3722_sd_enable(struct udevice *pmic, unsigned int sd)
+{
+	u8 value;
+	int err;
+
+	if (sd > 6)
+		return -EINVAL;
+
+	err = as3722_read(pmic, AS3722_SD_CONTROL, &value);
+	if (err) {
+		error("failed to read SD control register: %d", err);
+		return err;
+	}
+
+	value |= 1 << sd;
+
+	err = as3722_write(pmic, AS3722_SD_CONTROL, value);
+	if (err < 0) {
+		error("failed to write SD control register: %d", err);
+		return err;
+	}
+
+	return 0;
+}
+
+int as3722_sd_set_voltage(struct udevice *pmic, unsigned int sd, u8 value)
+{
+	int err;
+
+	if (sd > 6)
+		return -EINVAL;
+
+	err = as3722_write(pmic, AS3722_SD_VOLTAGE(sd), value);
+	if (err < 0) {
+		error("failed to write SD%u voltage register: %d", sd, err);
+		return err;
+	}
+
+	return 0;
+}
+
+int as3722_ldo_enable(struct udevice *pmic, unsigned int ldo)
+{
+	u8 value;
+	int err;
+
+	if (ldo > 11)
+		return -EINVAL;
+
+	err = as3722_read(pmic, AS3722_LDO_CONTROL, &value);
+	if (err) {
+		error("failed to read LDO control register: %d", err);
+		return err;
+	}
+
+	value |= 1 << ldo;
+
+	err = as3722_write(pmic, AS3722_LDO_CONTROL, value);
+	if (err < 0) {
+		error("failed to write LDO control register: %d", err);
+		return err;
+	}
+
+	return 0;
+}
+
+int as3722_ldo_set_voltage(struct udevice *pmic, unsigned int ldo, u8 value)
+{
+	int err;
+
+	if (ldo > 11)
+		return -EINVAL;
+
+	err = as3722_write(pmic, AS3722_LDO_VOLTAGE(ldo), value);
+	if (err < 0) {
+		error("failed to write LDO%u voltage register: %d", ldo,
+		      err);
+		return err;
+	}
+
+	return 0;
+}
+
+int as3722_gpio_configure(struct udevice *pmic, unsigned int gpio,
+			  unsigned long flags)
+{
+	u8 value = 0;
+	int err;
+
+	if (flags & AS3722_GPIO_OUTPUT_VDDH)
+		value |= AS3722_GPIO_CONTROL_MODE_OUTPUT_VDDH;
+
+	if (flags & AS3722_GPIO_INVERT)
+		value |= AS3722_GPIO_CONTROL_INVERT;
+
+	err = as3722_write(pmic, AS3722_GPIO_CONTROL(gpio), value);
+	if (err) {
+		error("failed to configure GPIO#%u: %d", gpio, err);
+		return err;
+	}
+
+	return 0;
+}
+
+static int as3722_gpio_set(struct udevice *pmic, unsigned int gpio,
+			   unsigned int level)
+{
+	const char *l;
+	u8 value;
+	int err;
+
+	if (gpio > 7)
+		return -EINVAL;
+
+	err = as3722_read(pmic, AS3722_GPIO_SIGNAL_OUT, &value);
+	if (err < 0) {
+		error("failed to read GPIO signal out register: %d", err);
+		return err;
+	}
+
+	if (level == 0) {
+		value &= ~(1 << gpio);
+		l = "low";
+	} else {
+		value |= 1 << gpio;
+		l = "high";
+	}
+
+	err = as3722_write(pmic, AS3722_GPIO_SIGNAL_OUT, value);
+	if (err) {
+		error("failed to set GPIO#%u %s: %d", gpio, l, err);
+		return err;
+	}
+
+	return 0;
+}
+
+int as3722_gpio_direction_output(struct udevice *pmic, unsigned int gpio,
+				 unsigned int level)
+{
+	u8 value;
+	int err;
+
+	if (gpio > 7)
+		return -EINVAL;
+
+	if (level == 0)
+		value = AS3722_GPIO_CONTROL_MODE_OUTPUT_VDDL;
+	else
+		value = AS3722_GPIO_CONTROL_MODE_OUTPUT_VDDH;
+
+	err = as3722_write(pmic, AS3722_GPIO_CONTROL(gpio), value);
+	if (err) {
+		error("failed to configure GPIO#%u as output: %d", gpio, err);
+		return err;
+	}
+
+	err = as3722_gpio_set(pmic, gpio, level);
+	if (err < 0) {
+		error("failed to set GPIO#%u high: %d", gpio, err);
+		return err;
+	}
+
+	return 0;
+}
+
+int as3722_init(struct udevice **devp)
+{
+	struct udevice *pmic;
+	u8 id, revision;
+	const unsigned int bus = 0;
+	const unsigned int address = 0x40;
+	int err;
+
+	err = i2c_get_chip_for_busnum(bus, address, &pmic);
+	if (err)
+		return err;
+	err = as3722_read_id(pmic, &id, &revision);
+	if (err < 0) {
+		error("failed to read ID: %d", err);
+		return err;
+	}
+
+	if (id != AS3722_DEVICE_ID) {
+		error("unknown device");
+		return -ENOENT;
+	}
+
+	debug("AS3722 revision %#x found on I2C bus %u, address %#x\n",
+	      revision, bus, address);
+	*devp = pmic;
+
+	return 0;
+}
diff --git a/include/configs/beaver.h b/include/configs/beaver.h
index 5d765f3..5df460c 100644
--- a/include/configs/beaver.h
+++ b/include/configs/beaver.h
@@ -76,6 +76,16 @@
 #define CONFIG_USB_HOST_ETHER
 #define CONFIG_USB_ETHER_ASIX
 
+/* PCI host support */
+#define CONFIG_PCI
+#define CONFIG_PCI_TEGRA
+#define CONFIG_PCI_PNP
+#define CONFIG_CMD_PCI
+#define CONFIG_CMD_PCI_ENUM
+
+/* PCI networking support */
+#define CONFIG_RTL8169
+
 /* General networking support */
 #define CONFIG_CMD_NET
 #define CONFIG_CMD_DHCP
diff --git a/include/configs/cardhu.h b/include/configs/cardhu.h
index 758b7ad..5e13b65 100644
--- a/include/configs/cardhu.h
+++ b/include/configs/cardhu.h
@@ -78,6 +78,16 @@
 #define CONFIG_USB_HOST_ETHER
 #define CONFIG_USB_ETHER_ASIX
 
+/* PCI host support */
+#define CONFIG_PCI
+#define CONFIG_PCI_TEGRA
+#define CONFIG_PCI_PNP
+#define CONFIG_CMD_PCI
+#define CONFIG_CMD_PCI_ENUM
+
+/* PCI networking support */
+#define CONFIG_RTL8169
+
 /* General networking support */
 #define CONFIG_CMD_NET
 #define CONFIG_CMD_DHCP
diff --git a/include/configs/jetson-tk1.h b/include/configs/jetson-tk1.h
index a7d7665..0a79c7c 100644
--- a/include/configs/jetson-tk1.h
+++ b/include/configs/jetson-tk1.h
@@ -10,6 +10,9 @@
 
 #include <linux/sizes.h>
 
+/* enable PMIC */
+#define CONFIG_AS3722_POWER
+
 #include "tegra124-common.h"
 
 /* High-level configuration options */
@@ -61,6 +64,16 @@
 #define CONFIG_USB_HOST_ETHER
 #define CONFIG_USB_ETHER_ASIX
 
+/* PCI host support */
+#define CONFIG_PCI
+#define CONFIG_PCI_TEGRA
+#define CONFIG_PCI_PNP
+#define CONFIG_CMD_PCI
+#define CONFIG_CMD_PCI_ENUM
+
+/* PCI networking support */
+#define CONFIG_RTL8169
+
 /* General networking support */
 #define CONFIG_CMD_NET
 #define CONFIG_CMD_DHCP
diff --git a/include/configs/tegra-common.h b/include/configs/tegra-common.h
index 0685328..8f1e370 100644
--- a/include/configs/tegra-common.h
+++ b/include/configs/tegra-common.h
@@ -47,7 +47,9 @@
  * Size of malloc() pool
  */
 #define CONFIG_SYS_MALLOC_LEN		(4 << 20)	/* 4MB  */
-#define CONFIG_SYS_MALLOC_F_LEN	(1 << 10)
+#define CONFIG_SYS_MALLOC_F_LEN		(1 << 10)
+
+#define CONFIG_SYS_NONCACHED_MEMORY	(1 << 20)       /* 1 MiB */
 
 /*
  * NS16550 Configuration
diff --git a/include/configs/trimslice.h b/include/configs/trimslice.h
index a254f86..59f4f67 100644
--- a/include/configs/trimslice.h
+++ b/include/configs/trimslice.h
@@ -60,6 +60,16 @@
 #define CONFIG_USB_HOST_ETHER
 #define CONFIG_USB_ETHER_ASIX
 
+/* PCI host support */
+#define CONFIG_PCI
+#define CONFIG_PCI_TEGRA
+#define CONFIG_PCI_PNP
+#define CONFIG_CMD_PCI
+#define CONFIG_CMD_PCI_ENUM
+
+/* PCI networking support */
+#define CONFIG_RTL8169
+
 /* General networking support */
 #define CONFIG_CMD_NET
 #define CONFIG_CMD_DHCP
diff --git a/include/dt-bindings/clock/tegra20-car.h b/include/dt-bindings/clock/tegra20-car.h
index 9406207..a1ae9a8 100644
--- a/include/dt-bindings/clock/tegra20-car.h
+++ b/include/dt-bindings/clock/tegra20-car.h
@@ -92,7 +92,7 @@
 #define TEGRA20_CLK_OWR 71
 #define TEGRA20_CLK_AFI 72
 #define TEGRA20_CLK_CSITE 73
-/* 74 */
+#define TEGRA20_CLK_PCIE_XCLK 74
 #define TEGRA20_CLK_AVPUCQ 75
 #define TEGRA20_CLK_LA 76
 /* 77 */
diff --git a/include/dt-bindings/clock/tegra30-car.h b/include/dt-bindings/clock/tegra30-car.h
index 889e49b..2244582 100644
--- a/include/dt-bindings/clock/tegra30-car.h
+++ b/include/dt-bindings/clock/tegra30-car.h
@@ -92,7 +92,7 @@
 #define TEGRA30_CLK_OWR 71
 #define TEGRA30_CLK_AFI 72
 #define TEGRA30_CLK_CSITE 73
-/* 74 */
+#define TEGRA30_CLK_PCIEX 74
 #define TEGRA30_CLK_AVPUCQ 75
 #define TEGRA30_CLK_LA 76
 /* 77 */
diff --git a/include/dt-bindings/pinctrl/pinctrl-tegra-xusb.h b/include/dt-bindings/pinctrl/pinctrl-tegra-xusb.h
new file mode 100644
index 0000000..914d56d
--- /dev/null
+++ b/include/dt-bindings/pinctrl/pinctrl-tegra-xusb.h
@@ -0,0 +1,7 @@
+#ifndef _DT_BINDINGS_PINCTRL_TEGRA_XUSB_H
+#define _DT_BINDINGS_PINCTRL_TEGRA_XUSB_H 1
+
+#define TEGRA_XUSB_PADCTL_PCIE 0
+#define TEGRA_XUSB_PADCTL_SATA 1
+
+#endif /* _DT_BINDINGS_PINCTRL_TEGRA_XUSB_H */
diff --git a/include/fdtdec.h b/include/fdtdec.h
index d2b665c..5effa24 100644
--- a/include/fdtdec.h
+++ b/include/fdtdec.h
@@ -86,6 +86,11 @@ enum fdt_compat_id {
 	COMPAT_NVIDIA_TEGRA20_SFLASH,	/* Tegra 2 SPI flash controller */
 	COMPAT_NVIDIA_TEGRA20_SLINK,	/* Tegra 2 SPI SLINK controller */
 	COMPAT_NVIDIA_TEGRA114_SPI,	/* Tegra 114 SPI controller */
+	COMPAT_NVIDIA_TEGRA124_PCIE,	/* Tegra 124 PCIe controller */
+	COMPAT_NVIDIA_TEGRA30_PCIE,	/* Tegra 30 PCIe controller */
+	COMPAT_NVIDIA_TEGRA20_PCIE,	/* Tegra 20 PCIe controller */
+	COMPAT_NVIDIA_TEGRA124_XUSB_PADCTL,
+					/* Tegra124 XUSB pad controller */
 	COMPAT_SMSC_LAN9215,		/* SMSC 10/100 Ethernet LAN9215 */
 	COMPAT_SAMSUNG_EXYNOS5_SROMC,	/* Exynos5 SROMC */
 	COMPAT_SAMSUNG_S3C2440_I2C,	/* Exynos I2C Controller */
@@ -123,6 +128,7 @@ enum fdt_compat_id {
 	COMPAT_INTEL_PANTHERPOINT_AHCI,	/* Intel Pantherpoint AHCI */
 	COMPAT_INTEL_MODEL_206AX,	/* Intel Model 206AX CPU */
 	COMPAT_INTEL_GMA,		/* Intel Graphics Media Accelerator */
+	COMPAT_AMS_AS3722,		/* AMS AS3722 PMIC */
 
 	COMPAT_COUNT,
 };
diff --git a/include/power/as3722.h b/include/power/as3722.h
new file mode 100644
index 0000000..aa966d2
--- /dev/null
+++ b/include/power/as3722.h
@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2014 NVIDIA Corporation
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef __POWER_AS3722_H__
+#define __POWER_AS3722_H__
+
+#include <asm/types.h>
+
+#define AS3722_GPIO_OUTPUT_VDDH (1 << 0)
+#define AS3722_GPIO_INVERT (1 << 1)
+
+struct udevice;
+
+int as3722_init(struct udevice **devp);
+int as3722_sd_enable(struct udevice *pmic, unsigned int sd);
+int as3722_sd_set_voltage(struct udevice *pmic, unsigned int sd, u8 value);
+int as3722_ldo_enable(struct udevice *pmic, unsigned int ldo);
+int as3722_ldo_set_voltage(struct udevice *pmic, unsigned int ldo, u8 value);
+int as3722_gpio_configure(struct udevice *pmic, unsigned int gpio,
+			  unsigned long flags);
+int as3722_gpio_direction_output(struct udevice *pmic, unsigned int gpio,
+				 unsigned int level);
+
+#endif /* __POWER_AS3722_H__ */
diff --git a/lib/fdtdec.c b/lib/fdtdec.c
index 9d86dba..745b390 100644
--- a/lib/fdtdec.c
+++ b/lib/fdtdec.c
@@ -41,6 +41,10 @@ static const char * const compat_names[COMPAT_COUNT] = {
 	COMPAT(NVIDIA_TEGRA20_SFLASH, "nvidia,tegra20-sflash"),
 	COMPAT(NVIDIA_TEGRA20_SLINK, "nvidia,tegra20-slink"),
 	COMPAT(NVIDIA_TEGRA114_SPI, "nvidia,tegra114-spi"),
+	COMPAT(NVIDIA_TEGRA124_PCIE, "nvidia,tegra124-pcie"),
+	COMPAT(NVIDIA_TEGRA30_PCIE, "nvidia,tegra30-pcie"),
+	COMPAT(NVIDIA_TEGRA20_PCIE, "nvidia,tegra20-pcie"),
+	COMPAT(NVIDIA_TEGRA124_XUSB_PADCTL, "nvidia,tegra124-xusb-padctl"),
 	COMPAT(SMSC_LAN9215, "smsc,lan9215"),
 	COMPAT(SAMSUNG_EXYNOS5_SROMC, "samsung,exynos-sromc"),
 	COMPAT(SAMSUNG_S3C2440_I2C, "samsung,s3c2440-i2c"),
@@ -78,6 +82,7 @@ static const char * const compat_names[COMPAT_COUNT] = {
 	COMPAT(INTEL_PANTHERPOINT_AHCI, "intel,pantherpoint-ahci"),
 	COMPAT(INTEL_MODEL_206AX, "intel,model-206ax"),
 	COMPAT(INTEL_GMA, "intel,gma"),
+	COMPAT(AMS_AS3722, "ams,as3722"),
 };
 
 const char *fdtdec_get_compatible(enum fdt_compat_id id)