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

45 files changed, 1393 insertions, 222 deletions

diff --git a/arch/arm/cpu/armv7/Kconfig b/arch/arm/cpu/armv7/Kconfig
index 61e7c82..6c5d5dd 100644
--- a/arch/arm/cpu/armv7/Kconfig
+++ b/arch/arm/cpu/armv7/Kconfig
@@ -16,7 +16,7 @@ config ARMV7_NONSEC
 config ARMV7_BOOT_SEC_DEFAULT
 	boolean "Boot in secure mode by default" if EXPERT
 	depends on ARMV7_NONSEC
-	default n
+	default y if TEGRA
 	---help---
 	Say Y here to boot in secure mode by default even if non-secure mode
 	is supported. This option is useful to boot kernels which do not
diff --git a/arch/arm/cpu/armv7/Makefile b/arch/arm/cpu/armv7/Makefile
index e66c61e..5a76100 100644
--- a/arch/arm/cpu/armv7/Makefile
+++ b/arch/arm/cpu/armv7/Makefile
@@ -18,7 +18,7 @@ obj-y	+= lowlevel_init.o
 endif
 endif
 
-ifneq ($(CONFIG_ARMV7_NONSEC)$(CONFIG_ARMV7_VIRT),)
+ifneq ($(CONFIG_ARMV7_NONSEC),)
 obj-y	+= nonsec_virt.o
 obj-y	+= virt-v7.o
 obj-y	+= virt-dt.o
diff --git a/arch/arm/cpu/armv7/ls102xa/cpu.c b/arch/arm/cpu/armv7/ls102xa/cpu.c
index 1a640bb..75f0d8c 100644
--- a/arch/arm/cpu/armv7/ls102xa/cpu.c
+++ b/arch/arm/cpu/armv7/ls102xa/cpu.c
@@ -329,7 +329,7 @@ int arch_cpu_init(void)
 	return 0;
 }
 
-#if defined(CONFIG_ARMV7_NONSEC) || defined(CONFIG_ARMV7_VIRT)
+#ifdef CONFIG_ARMV7_NONSEC
 /* Set the address at which the secondary core starts from.*/
 void smp_set_core_boot_addr(unsigned long addr, int corenr)
 {
diff --git a/arch/arm/cpu/armv7/psci.S b/arch/arm/cpu/armv7/psci.S
index bf11a34..87c0c0b 100644
--- a/arch/arm/cpu/armv7/psci.S
+++ b/arch/arm/cpu/armv7/psci.S
@@ -17,6 +17,7 @@
 
 #include <config.h>
 #include <linux/linkage.h>
+#include <asm/macro.h>
 #include <asm/psci.h>
 
 	.pushsection ._secure.text, "ax"
@@ -99,4 +100,124 @@ _smc_psci:
 	pop	{r4-r7, lr}
 	movs	pc, lr			@ Return to the kernel
 
+@ Requires dense and single-cluster CPU ID space
+ENTRY(psci_get_cpu_id)
+	mrc	p15, 0, r0, c0, c0, 5	/* read MPIDR */
+	and	r0, r0, #0xff		/* return CPU ID in cluster */
+	bx	lr
+ENDPROC(psci_get_cpu_id)
+.weak psci_get_cpu_id
+
+/* Imported from Linux kernel */
+LENTRY(v7_flush_dcache_all)
+	dmb					@ ensure ordering with previous memory accesses
+	mrc	p15, 1, r0, c0, c0, 1		@ read clidr
+	ands	r3, r0, #0x7000000		@ extract loc from clidr
+	mov	r3, r3, lsr #23			@ left align loc bit field
+	beq	finished			@ if loc is 0, then no need to clean
+	mov	r10, #0				@ start clean at cache level 0
+flush_levels:
+	add	r2, r10, r10, lsr #1		@ work out 3x current cache level
+	mov	r1, r0, lsr r2			@ extract cache type bits from clidr
+	and	r1, r1, #7			@ mask of the bits for current cache only
+	cmp	r1, #2				@ see what cache we have at this level
+	blt	skip				@ skip if no cache, or just i-cache
+	mrs     r9, cpsr			@ make cssr&csidr read atomic
+	mcr	p15, 2, r10, c0, c0, 0		@ select current cache level in cssr
+	isb					@ isb to sych the new cssr&csidr
+	mrc	p15, 1, r1, c0, c0, 0		@ read the new csidr
+	msr     cpsr_c, r9
+	and	r2, r1, #7			@ extract the length of the cache lines
+	add	r2, r2, #4			@ add 4 (line length offset)
+	ldr	r4, =0x3ff
+	ands	r4, r4, r1, lsr #3		@ find maximum number on the way size
+	clz	r5, r4				@ find bit position of way size increment
+	ldr	r7, =0x7fff
+	ands	r7, r7, r1, lsr #13		@ extract max number of the index size
+loop1:
+	mov	r9, r7				@ create working copy of max index
+loop2:
+	orr	r11, r10, r4, lsl r5		@ factor way and cache number into r11
+	orr	r11, r11, r9, lsl r2		@ factor index number into r11
+	mcr	p15, 0, r11, c7, c14, 2		@ clean & invalidate by set/way
+	subs	r9, r9, #1			@ decrement the index
+	bge	loop2
+	subs	r4, r4, #1			@ decrement the way
+	bge	loop1
+skip:
+	add	r10, r10, #2			@ increment cache number
+	cmp	r3, r10
+	bgt	flush_levels
+finished:
+	mov	r10, #0				@ swith back to cache level 0
+	mcr	p15, 2, r10, c0, c0, 0		@ select current cache level in cssr
+	dsb	st
+	isb
+	bx	lr
+ENDPROC(v7_flush_dcache_all)
+
+ENTRY(psci_disable_smp)
+	mrc	p15, 0, r0, c1, c0, 1		@ ACTLR
+	bic	r0, r0, #(1 << 6)		@ Clear SMP bit
+	mcr	p15, 0, r0, c1, c0, 1		@ ACTLR
+	isb
+	dsb
+	bx	lr
+ENDPROC(psci_disable_smp)
+.weak psci_disable_smp
+
+ENTRY(psci_enable_smp)
+	mrc	p15, 0, r0, c1, c0, 1		@ ACTLR
+	orr	r0, r0, #(1 << 6)		@ Set SMP bit
+	mcr	p15, 0, r0, c1, c0, 1		@ ACTLR
+	isb
+	bx	lr
+ENDPROC(psci_enable_smp)
+.weak psci_enable_smp
+
+ENTRY(psci_cpu_off_common)
+	push	{lr}
+
+	mrc	p15, 0, r0, c1, c0, 0		@ SCTLR
+	bic	r0, r0, #(1 << 2)		@ Clear C bit
+	mcr	p15, 0, r0, c1, c0, 0		@ SCTLR
+	isb
+	dsb
+
+	bl	v7_flush_dcache_all
+
+	clrex					@ Why???
+
+	bl	psci_disable_smp
+
+	pop	{lr}
+	bx	lr
+ENDPROC(psci_cpu_off_common)
+
+@ expects CPU ID in r0 and returns stack top in r0
+ENTRY(psci_get_cpu_stack_top)
+	mov	r5, #0x400			@ 1kB of stack per CPU
+	mul	r0, r0, r5
+
+	ldr	r5, =psci_text_end		@ end of monitor text
+	add	r5, r5, #0x2000			@ Skip two pages
+	lsr	r5, r5, #12			@ Align to start of page
+	lsl	r5, r5, #12
+	sub	r5, r5, #4			@ reserve 1 word for target PC
+	sub	r0, r5, r0			@ here's our stack!
+
+	bx	lr
+ENDPROC(psci_get_cpu_stack_top)
+
+ENTRY(psci_cpu_entry)
+	bl	psci_enable_smp
+
+	bl	_nonsec_init
+
+	bl	psci_get_cpu_id			@ CPU ID => r0
+	bl	psci_get_cpu_stack_top		@ stack top => r0
+	ldr	r0, [r0]			@ target PC at stack top
+	b	_do_nonsec_entry
+ENDPROC(psci_cpu_entry)
+
 	.popsection
diff --git a/arch/arm/cpu/armv7/sunxi/psci.S b/arch/arm/cpu/armv7/sunxi/psci.S
index 07b2d76..7ec0500 100644
--- a/arch/arm/cpu/armv7/sunxi/psci.S
+++ b/arch/arm/cpu/armv7/sunxi/psci.S
@@ -19,6 +19,7 @@
 
 #include <config.h>
 #include <asm/gic.h>
+#include <asm/macro.h>
 #include <asm/psci.h>
 #include <asm/arch/cpu.h>
 
@@ -138,8 +139,11 @@ out:	mcr	p15, 0, r7, c1, c1, 0
 	@ r2 = target PC
 .globl	psci_cpu_on
 psci_cpu_on:
-	adr	r0, _target_pc
-	str	r2, [r0]
+	push	{lr}
+
+	mov	r0, r1
+	bl	psci_get_cpu_stack_top	@ get stack top of target CPU
+	str	r2, [r0]		@ store target PC at stack top
 	dsb
 
 	movw	r0, #(SUN7I_CPUCFG_BASE & 0xffff)
@@ -150,7 +154,7 @@ psci_cpu_on:
 	mov	r4, #1
 	lsl	r4, r4, r1
 
-	adr	r6, _sunxi_cpu_entry
+	ldr	r6, =psci_cpu_entry
 	str	r6, [r0, #0x1a4] @ PRIVATE_REG (boot vector)
 
 	@ Assert reset on target CPU
@@ -194,88 +198,11 @@ psci_cpu_on:
 	str	r6, [r0, #0x1e4]
 
 	mov	r0, #ARM_PSCI_RET_SUCCESS	@ Return PSCI_RET_SUCCESS
-	mov	pc, lr
-
-_target_pc:
-	.word	0
-
-/* Imported from Linux kernel */
-v7_flush_dcache_all:
-	dmb					@ ensure ordering with previous memory accesses
-	mrc	p15, 1, r0, c0, c0, 1		@ read clidr
-	ands	r3, r0, #0x7000000		@ extract loc from clidr
-	mov	r3, r3, lsr #23			@ left align loc bit field
-	beq	finished			@ if loc is 0, then no need to clean
-	mov	r10, #0				@ start clean at cache level 0
-flush_levels:
-	add	r2, r10, r10, lsr #1		@ work out 3x current cache level
-	mov	r1, r0, lsr r2			@ extract cache type bits from clidr
-	and	r1, r1, #7			@ mask of the bits for current cache only
-	cmp	r1, #2				@ see what cache we have at this level
-	blt	skip				@ skip if no cache, or just i-cache
-	mrs     r9, cpsr			@ make cssr&csidr read atomic
-	mcr	p15, 2, r10, c0, c0, 0		@ select current cache level in cssr
-	isb					@ isb to sych the new cssr&csidr
-	mrc	p15, 1, r1, c0, c0, 0		@ read the new csidr
-	msr     cpsr_c, r9
-	and	r2, r1, #7			@ extract the length of the cache lines
-	add	r2, r2, #4			@ add 4 (line length offset)
-	ldr	r4, =0x3ff
-	ands	r4, r4, r1, lsr #3		@ find maximum number on the way size
-	clz	r5, r4				@ find bit position of way size increment
-	ldr	r7, =0x7fff
-	ands	r7, r7, r1, lsr #13		@ extract max number of the index size
-loop1:
-	mov	r9, r7				@ create working copy of max index
-loop2:
-	orr	r11, r10, r4, lsl r5		@ factor way and cache number into r11
-	orr	r11, r11, r9, lsl r2		@ factor index number into r11
-	mcr	p15, 0, r11, c7, c14, 2		@ clean & invalidate by set/way
-	subs	r9, r9, #1			@ decrement the index
-	bge	loop2
-	subs	r4, r4, #1			@ decrement the way
-	bge	loop1
-skip:
-	add	r10, r10, #2			@ increment cache number
-	cmp	r3, r10
-	bgt	flush_levels
-finished:
-	mov	r10, #0				@ swith back to cache level 0
-	mcr	p15, 2, r10, c0, c0, 0		@ select current cache level in cssr
-	dsb	st
-	isb
-	bx	lr
-
-_sunxi_cpu_entry:
-	@ Set SMP bit
-	mrc	p15, 0, r0, c1, c0, 1
-	orr	r0, r0, #0x40
-	mcr	p15, 0, r0, c1, c0, 1
-	isb
-
-	bl	_nonsec_init
-
-	adr	r0, _target_pc
-	ldr	r0, [r0]
-	b	_do_nonsec_entry
+	pop	{pc}
 
 .globl	psci_cpu_off
 psci_cpu_off:
-	mrc	p15, 0, r0, c1, c0, 0		@ SCTLR
-	bic	r0, r0, #(1 << 2)		@ Clear C bit
-	mcr	p15, 0, r0, c1, c0, 0		@ SCTLR
-	isb
-	dsb
-
-	bl	v7_flush_dcache_all
-
-	clrex					@ Why???
-
-	mrc	p15, 0, r0, c1, c0, 1		@ ACTLR
-	bic	r0, r0, #(1 << 6)		@ Clear SMP bit
-	mcr	p15, 0, r0, c1, c0, 1		@ ACTLR
-	isb
-	dsb
+	bl	psci_cpu_off_common
 
 	@ Ask CPU0 to pull the rug...
 	movw	r0, #(GICD_BASE & 0xffff)
@@ -290,6 +217,8 @@ psci_cpu_off:
 
 .globl	psci_arch_init
 psci_arch_init:
+	mov	r6, lr
+
 	movw	r4, #(GICD_BASE & 0xffff)
 	movt	r4, #(GICD_BASE >> 16)
 
@@ -315,18 +244,12 @@ psci_arch_init:
 	mcr	p15, 0, r5, c1, c1, 0	@ Write SCR
 	isb
 
-	mrc	p15, 0, r4, c0, c0, 5	@ MPIDR
-	and	r4, r4, #3		@ cpu number in cluster
-	mov	r5, #0x400		@ 1kB of stack per CPU
-	mul	r4, r4, r5
-
-	adr	r5, text_end		@ end of text
-	add	r5, r5, #0x2000		@ Skip two pages
-	lsr	r5, r5, #12		@ Align to start of page
-	lsl	r5, r5, #12
-	sub	sp, r5, r4		@ here's our stack!
+	bl	psci_get_cpu_id		@ CPU ID => r0
+	bl	psci_get_cpu_stack_top	@ stack top => r0
+	mov	sp, r0
 
-	bx	lr
+	bx	r6
 
-text_end:
+	.globl psci_text_end
+psci_text_end:
 	.popsection
diff --git a/arch/arm/cpu/armv7/virt-dt.c b/arch/arm/cpu/armv7/virt-dt.c
index 9408e33..32c368f 100644
--- a/arch/arm/cpu/armv7/virt-dt.c
+++ b/arch/arm/cpu/armv7/virt-dt.c
@@ -16,6 +16,7 @@
  */
 
 #include <common.h>
+#include <errno.h>
 #include <stdio_dev.h>
 #include <linux/ctype.h>
 #include <linux/types.h>
@@ -88,9 +89,37 @@ static int fdt_psci(void *fdt)
 	return 0;
 }
 
+int armv7_apply_memory_carveout(u64 *start, u64 *size)
+{
+#ifdef CONFIG_ARMV7_SECURE_RESERVE_SIZE
+	if (*start + *size < CONFIG_ARMV7_SECURE_BASE ||
+	    *start >= (u64)CONFIG_ARMV7_SECURE_BASE +
+		      CONFIG_ARMV7_SECURE_RESERVE_SIZE)
+		return 0;
+
+	/* carveout must be at the beginning or the end of the bank */
+	if (*start == CONFIG_ARMV7_SECURE_BASE ||
+	    *start + *size == (u64)CONFIG_ARMV7_SECURE_BASE +
+			      CONFIG_ARMV7_SECURE_RESERVE_SIZE) {
+		if (*size < CONFIG_ARMV7_SECURE_RESERVE_SIZE) {
+			debug("Secure monitor larger than RAM bank!?\n");
+			return -EINVAL;
+		}
+		*size -= CONFIG_ARMV7_SECURE_RESERVE_SIZE;
+		if (*start == CONFIG_ARMV7_SECURE_BASE)
+			*start += CONFIG_ARMV7_SECURE_RESERVE_SIZE;
+		return 0;
+	}
+	debug("Secure monitor not located at beginning or end of RAM bank\n");
+	return -EINVAL;
+#else /* !CONFIG_ARMV7_SECURE_RESERVE_SIZE */
+	return 0;
+#endif
+}
+
 int psci_update_dt(void *fdt)
 {
-#if defined(CONFIG_ARMV7_NONSEC) || defined(CONFIG_ARMV7_VIRT)
+#ifdef CONFIG_ARMV7_NONSEC
 	if (!armv7_boot_nonsec())
 		return 0;
 #endif
diff --git a/arch/arm/cpu/armv7/virt-v7.c b/arch/arm/cpu/armv7/virt-v7.c
index 4cb8806..9c53306 100644
--- a/arch/arm/cpu/armv7/virt-v7.c
+++ b/arch/arm/cpu/armv7/virt-v7.c
@@ -46,6 +46,10 @@ static unsigned long get_gicd_base_address(void)
 #endif
 }
 
+/* Define a specific version of this function to enable any available
+ * hardware protections for the reserved region */
+void __weak protect_secure_section(void) {}
+
 static void relocate_secure_section(void)
 {
 #ifdef CONFIG_ARMV7_SECURE_BASE
@@ -54,6 +58,7 @@ static void relocate_secure_section(void)
 	memcpy((void *)CONFIG_ARMV7_SECURE_BASE, __secure_start, sz);
 	flush_dcache_range(CONFIG_ARMV7_SECURE_BASE,
 			   CONFIG_ARMV7_SECURE_BASE + sz + 1);
+	protect_secure_section();
 	invalidate_icache_all();
 #endif
 }
@@ -75,6 +80,10 @@ void __weak smp_kick_all_cpus(void)
 	kick_secondary_cpus_gic(gic_dist_addr);
 }
 
+__weak void psci_board_init(void)
+{
+}
+
 int armv7_init_nonsec(void)
 {
 	unsigned int reg;
@@ -112,6 +121,8 @@ int armv7_init_nonsec(void)
 	for (i = 1; i <= itlinesnr; i++)
 		writel((unsigned)-1, gic_dist_addr + GICD_IGROUPRn + 4 * i);
 
+	psci_board_init();
+
 	/*
 	 * Relocate secure section before any cpu runs in secure ram.
 	 * smp_kick_all_cpus may enable other cores and runs into secure
diff --git a/arch/arm/cpu/u-boot.lds b/arch/arm/cpu/u-boot.lds
index 7336162..03cd9f6 100644
--- a/arch/arm/cpu/u-boot.lds
+++ b/arch/arm/cpu/u-boot.lds
@@ -25,7 +25,7 @@ SECTIONS
 		*(.text*)
 	}
 
-#if defined(CONFIG_ARMV7_NONSEC) || defined(CONFIG_ARMV7_VIRT) || defined(CONFIG_ARMV7_PSCI)
+#ifdef CONFIG_ARMV7_NONSEC
 
 #ifndef CONFIG_ARMV7_SECURE_BASE
 #define CONFIG_ARMV7_SECURE_BASE
diff --git a/arch/arm/dts/tegra124-nyan-big.dts b/arch/arm/dts/tegra124-nyan-big.dts
index 9367193..5a39e93 100644
--- a/arch/arm/dts/tegra124-nyan-big.dts
+++ b/arch/arm/dts/tegra124-nyan-big.dts
@@ -29,6 +29,35 @@
 		reg = <0x80000000 0x80000000>;
 	};
 
+	host1x@50000000 {
+		dc@54200000 {
+			display-timings {
+				timing@0 {
+					clock-frequency = <69500000>;
+					hactive = <1366>;
+					vactive = <768>;
+					hsync-len = <32>;
+					hfront-porch = <48>;
+					hback-porch = <20>;
+					vfront-porch = <3>;
+					vback-porch = <13>;
+					vsync-len = <6>;
+				};
+			};
+		};
+
+		sor@54540000 {
+			status = "okay";
+
+			nvidia,dpaux = <&dpaux>;
+			nvidia,panel = <&panel>;
+		};
+
+		dpaux@545c0000 {
+			status = "okay";
+		};
+	};
+
 	serial@70006000 {
 		/* Debug connector on the bottom of the board near SD card. */
 		status = "okay";
@@ -258,6 +287,7 @@
 		compatible = "pwm-backlight";
 
 		enable-gpios = <&gpio TEGRA_GPIO(H, 2) GPIO_ACTIVE_HIGH>;
+		power-supply = <&vdd_led>;
 		pwms = <&pwm 1 1000000>;
 
 		default-brightness-level = <224>;
@@ -310,6 +340,10 @@
 		};
 	};
 
+	gpio@6000d000 {
+		u-boot,dm-pre-reloc;
+	};
+
 	gpio-keys {
 		compatible = "gpio-keys";
 
@@ -337,6 +371,19 @@
 		backlight = <&backlight>;
 	};
 
+	regulators {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		vdd_led: regulator@5 {
+			compatible = "regulator-fixed";
+			reg = <5>;
+			regulator-name = "+VDD_LED";
+			gpio = <&gpio TEGRA_GPIO(P, 2) GPIO_ACTIVE_HIGH>;
+			enable-active-high;
+		};
+	};
+
 	sound {
 		compatible = "nvidia,tegra-audio-max98090-nyan-big",
 			     "nvidia,tegra-audio-max98090";
diff --git a/arch/arm/dts/tegra124.dtsi b/arch/arm/dts/tegra124.dtsi
index 9fa141d..43b7f22 100644
--- a/arch/arm/dts/tegra124.dtsi
+++ b/arch/arm/dts/tegra124.dtsi
@@ -76,6 +76,85 @@
 		};
 	};
 
+	host1x@50000000 {
+		compatible = "nvidia,tegra124-host1x", "simple-bus";
+		reg = <0x50000000 0x00034000>;
+		interrupts = <GIC_SPI 65 IRQ_TYPE_LEVEL_HIGH>, /* syncpt */
+			     <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>; /* general */
+		clocks = <&tegra_car TEGRA124_CLK_HOST1X>;
+		resets = <&tegra_car 28>;
+		reset-names = "host1x";
+
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		ranges = <0x54000000 0x54000000 0x01000000>;
+
+		dc@54200000 {
+			compatible = "nvidia,tegra124-dc";
+			reg = <0x54200000 0x00040000>;
+			interrupts = <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&tegra_car TEGRA124_CLK_DISP1>,
+				 <&tegra_car TEGRA124_CLK_PLL_P>;
+			clock-names = "dc", "parent";
+			resets = <&tegra_car 27>;
+			reset-names = "dc";
+
+			nvidia,head = <0>;
+		};
+
+		dc@54240000 {
+			compatible = "nvidia,tegra124-dc";
+			reg = <0x54240000 0x00040000>;
+			interrupts = <GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&tegra_car TEGRA124_CLK_DISP2>,
+				 <&tegra_car TEGRA124_CLK_PLL_P>;
+			clock-names = "dc", "parent";
+			resets = <&tegra_car 26>;
+			reset-names = "dc";
+
+			nvidia,head = <1>;
+		};
+
+		hdmi@54280000 {
+			compatible = "nvidia,tegra124-hdmi";
+			reg = <0x54280000 0x00040000>;
+			interrupts = <GIC_SPI 75 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&tegra_car TEGRA124_CLK_HDMI>,
+				 <&tegra_car TEGRA124_CLK_PLL_D2_OUT0>;
+			clock-names = "hdmi", "parent";
+			resets = <&tegra_car 51>;
+			reset-names = "hdmi";
+			status = "disabled";
+		};
+
+		sor@54540000 {
+			compatible = "nvidia,tegra124-sor";
+			reg = <0x54540000 0x00040000>;
+			interrupts = <GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&tegra_car TEGRA124_CLK_SOR0>,
+				 <&tegra_car TEGRA124_CLK_PLL_D_OUT0>,
+				 <&tegra_car TEGRA124_CLK_PLL_DP>,
+				 <&tegra_car TEGRA124_CLK_CLK_M>;
+			clock-names = "sor", "parent", "dp", "safe";
+			resets = <&tegra_car 182>;
+			reset-names = "sor";
+			status = "disabled";
+		};
+
+		dpaux: dpaux@545c0000 {
+			compatible = "nvidia,tegra124-dpaux";
+			reg = <0x545c0000 0x00040000>;
+			interrupts = <GIC_SPI 159 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&tegra_car TEGRA124_CLK_DPAUX>,
+				 <&tegra_car TEGRA124_CLK_PLL_DP>;
+			clock-names = "dpaux", "parent";
+			resets = <&tegra_car 181>;
+			reset-names = "dpaux";
+			status = "disabled";
+		};
+	};
+
 	gic: interrupt-controller@50041000 {
 		compatible = "arm,cortex-a15-gic";
 		#interrupt-cells = <3>;
@@ -349,6 +428,11 @@
 		clocks = <&tegra_car 105>;
 	};
 
+	pmc@7000e400 {
+		compatible = "nvidia,tegra124-pmc";
+		reg = <0x7000e400 0x400>;
+	};
+
 	padctl: padctl@7009f000 {
 		compatible = "nvidia,tegra124-xusb-padctl";
 		reg = <0x7009f000 0x1000>;
diff --git a/arch/arm/include/asm/arch-tegra/clk_rst.h b/arch/arm/include/asm/arch-tegra/clk_rst.h
index 7d28e16..de50e08 100644
--- a/arch/arm/include/asm/arch-tegra/clk_rst.h
+++ b/arch/arm/include/asm/arch-tegra/clk_rst.h
@@ -202,9 +202,13 @@ struct clk_rst_ctlr {
 	uint crc_reserved52[1];		/* _reserved_52, 0x554 */
 	uint crc_super_gr3d_clk_div;	/* _SUPER_GR3D_CLK_DIVIDER_0, 0x558 */
 	uint crc_spare_reg0;		/* _SPARE_REG0_0, 0x55C */
-
-	/* Tegra124 - skip to 0x600 here for new CLK_SOURCE_ regs */
-	uint crc_reserved60[40];	/* _reserved_60, 0x560 - 0x5FC */
+	u32 _rsv32[4];                  /*                    0x560-0x56c */
+	u32 crc_plld2_ss_cfg;		/* _PLLD2_SS_CFG            0x570 */
+	u32 _rsv32_1[7];		/*                      0x574-58c */
+	struct clk_pll_simple plldp;	/* _PLLDP_BASE, 0x590 _PLLDP_MISC */
+	u32 crc_plldp_ss_cfg;		/* _PLLDP_SS_CFG, 0x598 */
+	u32 _rsrv32_2[25];
+	/* Tegra124 */
 	uint crc_clk_src_x[TEGRA_CLK_SOURCES_X]; /* XUSB, etc, 0x600-0x678 */
 };
 
@@ -440,4 +444,9 @@ enum {
 #define PLLX_IDDQ_SHIFT			3
 #define PLLX_IDDQ_MASK			(1U << PLLX_IDDQ_SHIFT)
 
+/* CLK_RST_PLLDP_SS_CFG */
+#define PLLDP_SS_CFG_CLAMP		(1 << 22)
+#define PLLDP_SS_CFG_UNDOCUMENTED	(1 << 24)
+#define PLLDP_SS_CFG_DITHER		(1 << 28)
+
 #endif	/* _TEGRA_CLK_RST_H_ */
diff --git a/arch/arm/include/asm/arch-tegra/clock.h b/arch/arm/include/asm/arch-tegra/clock.h
index 9d8114c..04011ae 100644
--- a/arch/arm/include/asm/arch-tegra/clock.h
+++ b/arch/arm/include/asm/arch-tegra/clock.h
@@ -156,6 +156,17 @@ void reset_cmplx_set_enable(int cpu, int which, int reset);
 void clock_ll_set_source(enum periph_id periph_id, unsigned source);
 
 /**
+ * This function is similar to clock_ll_set_source() except that it can be
+ * used for clocks with more than 2 mux bits.
+ *
+ * @param periph_id	peripheral to adjust
+ * @param mux_bits	number of mux bits for the clock
+ * @param source	source clock (0-15 depending on mux_bits)
+ */
+int clock_ll_set_source_bits(enum periph_id periph_id, int mux_bits,
+			     unsigned source);
+
+/**
  * Set the source and divisor for a peripheral clock. This sets the
  * clock rate. You need to look up the datasheet to see the meaning of the
  * source parameter as it changes for each peripheral.
@@ -265,6 +276,9 @@ void clock_early_init(void);
 /* Returns a pointer to the clock source register for a peripheral */
 u32 *get_periph_source_reg(enum periph_id periph_id);
 
+/* Returns a pointer to the given 'simple' PLL */
+struct clk_pll_simple *clock_get_simple_pll(enum clock_id clkid);
+
 /**
  * Given a peripheral ID and the required source clock, this returns which
  * value should be programmed into the source mux for that peripheral.
diff --git a/arch/arm/include/asm/arch-tegra20/dc.h b/arch/arm/include/asm/arch-tegra/dc.h
index 20790b6..6ffb468 100644
--- a/arch/arm/include/asm/arch-tegra20/dc.h
+++ b/arch/arm/include/asm/arch-tegra/dc.h
@@ -234,7 +234,7 @@ struct dc_disp_reg {
 	uint cursor_pos_ns;		/* _DISP_CURSOR_POSITION_NS_0 */
 	uint seq_ctrl;			/* _DISP_INIT_SEQ_CONTROL_0 */
 
-	/* Address 0x442 ~ 0x446 */
+	/* Address 0x443 ~ 0x446 */
 	uint spi_init_seq_data_a;	/* _DISP_SPI_INIT_SEQ_DATA_A_0 */
 	uint spi_init_seq_data_b;	/* _DISP_SPI_INIT_SEQ_DATA_B_0 */
 	uint spi_init_seq_data_c;	/* _DISP_SPI_INIT_SEQ_DATA_C_0 */
@@ -254,6 +254,11 @@ struct dc_disp_reg {
 	/* Address 0x4c0 ~ 0x4c1 */
 	uint dac_crt_ctrl;		/* _DISP_DAC_CRT_CTRL_0 */
 	uint disp_misc_ctrl;		/* _DISP_DISP_MISC_CONTROL_0 */
+
+	u32 rsvd_4c2[34];		/* 4c2 - 4e3 */
+
+	/* Address 0x4e4 */
+	u32 blend_background_color;	/* _DISP_BLEND_BACKGROUND_COLOR_0 */
 };
 
 enum dc_winc_filter_p {
@@ -289,9 +294,9 @@ struct dc_winc_reg {
 	uint v_filter_p[WINC_FILTER_COUNT];
 };
 
-/* WIN A/B/C Register 0x700 ~ 0x714*/
+/* WIN A/B/C Register 0x700 ~ 0x719*/
 struct dc_win_reg {
-	/* Address 0x700 ~ 0x714 */
+	/* Address 0x700 ~ 0x719 */
 	uint win_opt;			/* _WIN_WIN_OPTIONS_0 */
 	uint byte_swap;			/* _WIN_BYTE_SWAP_0 */
 	uint buffer_ctrl;		/* _WIN_BUFFER_CONTROL_0 */
@@ -313,11 +318,16 @@ struct dc_win_reg {
 	uint blend_2win_y;		/* _WIN_BLEND_2WIN_Y_0 */
 	uint blend_3win_xy;		/* _WIN_BLEND_3WIN_XY_0 */
 	uint hp_fetch_ctrl;		/* _WIN_HP_FETCH_CONTROL_0 */
+	uint global_alpha;		/* _WIN_GLOBAL_ALPHA */
+	uint blend_layer_ctrl;		/* _WINBUF_BLEND_LAYER_CONTROL_0 */
+	uint blend_match_select;	/* _WINBUF_BLEND_MATCH_SELECT_0 */
+	uint blend_nomatch_select;	/* _WINBUF_BLEND_NOMATCH_SELECT_0 */
+	uint blend_alpha_1bit;		/* _WINBUF_BLEND_ALPHA_1BIT_0 */
 };
 
-/* WINBUF A/B/C Register 0x800 ~ 0x80a */
+/* WINBUF A/B/C Register 0x800 ~ 0x80d */
 struct dc_winbuf_reg {
-	/* Address 0x800 ~ 0x80a */
+	/* Address 0x800 ~ 0x80d */
 	uint start_addr;		/* _WINBUF_START_ADDR_0 */
 	uint start_addr_ns;		/* _WINBUF_START_ADDR_NS_0 */
 	uint start_addr_u;		/* _WINBUF_START_ADDR_U_0 */
@@ -329,6 +339,9 @@ struct dc_winbuf_reg {
 	uint addr_v_offset;		/* _WINBUF_ADDR_V_OFFSET_0 */
 	uint addr_v_offset_ns;		/* _WINBUF_ADDR_V_OFFSET_NS_0 */
 	uint uflow_status;		/* _WINBUF_UFLOW_STATUS_0 */
+	uint buffer_surface_kind;	/* DC_WIN_BUFFER_SURFACE_KIND */
+	uint rsvd_80c;
+	uint start_addr_hi;		/* DC_WINBUF_START_ADDR_HI_0 */
 };
 
 /* Display Controller (DC_) regs */
@@ -339,16 +352,16 @@ struct dc_ctlr {
 	struct dc_com_reg com;		/* COM register 0x300 ~ 0x329 */
 	uint reserved1[0xd6];
 
-	struct dc_disp_reg disp;	/* DISP register 0x400 ~ 0x4c1 */
-	uint reserved2[0x3e];
+	struct dc_disp_reg disp;	/* DISP register 0x400 ~ 0x4e4 */
+	uint reserved2[0x1b];
 
 	struct dc_winc_reg winc;	/* Window A/B/C 0x500 ~ 0x628 */
 	uint reserved3[0xd7];
 
-	struct dc_win_reg win;		/* WIN A/B/C 0x700 ~ 0x714*/
-	uint reserved4[0xeb];
+	struct dc_win_reg win;		/* WIN A/B/C 0x700 ~ 0x719*/
+	uint reserved4[0xe6];
 
-	struct dc_winbuf_reg winbuf;	/* WINBUF A/B/C 0x800 ~ 0x80a */
+	struct dc_winbuf_reg winbuf;	/* WINBUF A/B/C 0x800 ~ 0x80d */
 };
 
 #define BIT(pos)	(1U << pos)
@@ -399,20 +412,45 @@ enum win_color_depth_id {
 #define SPI_ENABLE		BIT(24)
 #define HSPI_ENABLE		BIT(25)
 
+/* DC_CMD_STATE_ACCESS 0x040 */
+#define  READ_MUX_ASSEMBLY	(0 << 0)
+#define  READ_MUX_ACTIVE	(1 << 0)
+#define  WRITE_MUX_ASSEMBLY	(0 << 2)
+#define  WRITE_MUX_ACTIVE	(1 << 2)
+
 /* DC_CMD_STATE_CONTROL 0x041 */
 #define GENERAL_ACT_REQ		BIT(0)
 #define WIN_A_ACT_REQ		BIT(1)
 #define WIN_B_ACT_REQ		BIT(2)
 #define WIN_C_ACT_REQ		BIT(3)
+#define WIN_D_ACT_REQ		BIT(4)
+#define WIN_H_ACT_REQ		BIT(5)
+#define CURSOR_ACT_REQ		BIT(7)
 #define GENERAL_UPDATE		BIT(8)
 #define WIN_A_UPDATE		BIT(9)
 #define WIN_B_UPDATE		BIT(10)
 #define WIN_C_UPDATE		BIT(11)
+#define WIN_D_UPDATE		BIT(12)
+#define WIN_H_UPDATE		BIT(13)
+#define CURSOR_UPDATE		BIT(15)
+#define NC_HOST_TRIG		BIT(24)
 
 /* DC_CMD_DISPLAY_WINDOW_HEADER 0x042 */
 #define WINDOW_A_SELECT		BIT(4)
 #define WINDOW_B_SELECT		BIT(5)
 #define WINDOW_C_SELECT		BIT(6)
+#define	WINDOW_D_SELECT		BIT(7)
+#define	WINDOW_H_SELECT		BIT(8)
+
+/* DC_DISP_DISP_WIN_OPTIONS 0x402 */
+#define	CURSOR_ENABLE		BIT(16)
+#define	SOR_ENABLE		BIT(25)
+#define	TVO_ENABLE		BIT(28)
+#define	DSI_ENABLE		BIT(29)
+#define	HDMI_ENABLE		BIT(30)
+
+/* DC_DISP_DISP_TIMING_OPTIONS 0x405 */
+#define	VSYNC_H_POSITION(x)	((x) & 0xfff)
 
 /* DC_DISP_DISP_CLOCK_CONTROL 0x42e */
 #define SHIFT_CLK_DIVIDER_SHIFT	0
@@ -526,4 +564,13 @@ enum {
 #define V_DDA_INC_SHIFT		16
 #define V_DDA_INC_MASK		(0xFFFF << V_DDA_INC_SHIFT)
 
+#define DC_POLL_TIMEOUT_MS		50
+#define DC_N_WINDOWS			5
+#define DC_REG_SAVE_SPACE		(DC_N_WINDOWS + 5)
+
+struct display_timing;
+
+int display_init(void *lcdbase, int fb_bits_per_pixel,
+		 struct display_timing *timing);
+
 #endif /* __ASM_ARCH_TEGRA_DC_H */
diff --git a/arch/arm/include/asm/arch-tegra/powergate.h b/arch/arm/include/asm/arch-tegra/powergate.h
index 130b58b..2e491f1 100644
--- a/arch/arm/include/asm/arch-tegra/powergate.h
+++ b/arch/arm/include/asm/arch-tegra/powergate.h
@@ -33,6 +33,7 @@ enum tegra_powergate {
 
 int tegra_powergate_sequence_power_up(enum tegra_powergate id,
 				      enum periph_id periph);
+int tegra_powergate_power_on(enum tegra_powergate id);
 int tegra_powergate_power_off(enum tegra_powergate id);
 
 #endif
diff --git a/arch/arm/include/asm/arch-tegra/pwm.h b/arch/arm/include/asm/arch-tegra/pwm.h
new file mode 100644
index 0000000..92dced4
--- /dev/null
+++ b/arch/arm/include/asm/arch-tegra/pwm.h
@@ -0,0 +1,60 @@
+/*
+ * Tegra pulse width frequency modulator definitions
+ *
+ * Copyright (c) 2011 The Chromium OS Authors.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __ASM_ARCH_TEGRA_PWM_H
+#define __ASM_ARCH_TEGRA_PWM_H
+
+/* This is a single PWM channel */
+struct pwm_ctlr {
+	uint control;		/* Control register */
+	uint reserved[3];	/* Space space */
+};
+
+#define PWM_NUM_CHANNELS	4
+
+/* PWM_CONTROLLER_PWM_CSR_0/1/2/3_0 */
+#define PWM_ENABLE_SHIFT	31
+#define PWM_ENABLE_MASK	(0x1 << PWM_ENABLE_SHIFT)
+
+#define PWM_WIDTH_SHIFT	16
+#define PWM_WIDTH_MASK		(0x7FFF << PWM_WIDTH_SHIFT)
+
+#define PWM_DIVIDER_SHIFT	0
+#define PWM_DIVIDER_MASK	(0x1FFF << PWM_DIVIDER_SHIFT)
+
+/**
+ * Program the PWM with the given parameters.
+ *
+ * @param channel	PWM channel to update
+ * @param rate		Clock rate to use for PWM, or 0 to leave alone
+ * @param pulse_width	high pulse width: 0=always low, 1=1/256 pulse high,
+ *			n = n/256 pulse high
+ * @param freq_divider	frequency divider value (1 to use rate as is)
+ */
+void pwm_enable(unsigned channel, int rate, int pulse_width, int freq_divider);
+
+/**
+ * Request a pwm channel as referenced by a device tree node.
+ *
+ * This channel can then be passed to pwm_enable().
+ *
+ * @param blob		Device tree blob
+ * @param node		Node containing reference to pwm
+ * @param prop_name	Property name of pwm reference
+ * @return channel number, if ok, else -1
+ */
+int pwm_request(const void *blob, int node, const char *prop_name);
+
+/**
+ * Set up the pwm controller, by looking it up in the fdt.
+ *
+ * @return 0 if ok, -1 if the device tree node was not found or invalid.
+ */
+int pwm_init(const void *blob);
+
+#endif	/* __ASM_ARCH_TEGRA_PWM_H */
diff --git a/arch/arm/include/asm/arch-tegra/sys_proto.h b/arch/arm/include/asm/arch-tegra/sys_proto.h
index 8b3fbe1..83f9f47 100644
--- a/arch/arm/include/asm/arch-tegra/sys_proto.h
+++ b/arch/arm/include/asm/arch-tegra/sys_proto.h
@@ -8,12 +8,21 @@
 #ifndef _SYS_PROTO_H_
 #define _SYS_PROTO_H_
 
-struct tegra_sysinfo {
-	char *board_string;
-};
-
 void invalidate_dcache(void);
 
-extern const struct tegra_sysinfo sysinfo;
+/**
+ * tegra_board_id() - Get the board iD
+ *
+ * @return a board ID, or -ve on error
+ */
+int tegra_board_id(void);
+
+/**
+ * tegra_lcd_pmic_init() - Set up the PMIC for a board
+ *
+ * @board_id: Board ID which may be used to select LCD type
+ * @return 0 if OK, -ve on error
+ */
+int tegra_lcd_pmic_init(int board_id);
 
 #endif
diff --git a/arch/arm/include/asm/arch-tegra124/clock-tables.h b/arch/arm/include/asm/arch-tegra124/clock-tables.h
index daf9a2b..7005855 100644
--- a/arch/arm/include/asm/arch-tegra124/clock-tables.h
+++ b/arch/arm/include/asm/arch-tegra124/clock-tables.h
@@ -25,6 +25,7 @@ enum clock_id {
 	CLOCK_ID_XCPU = CLOCK_ID_FIRST_SIMPLE,
 	CLOCK_ID_EPCI,
 	CLOCK_ID_SFROM32KHZ,
+	CLOCK_ID_DP,	/* Special for Tegra124 */
 
 	/* These are the base clocks (inputs to the Tegra SoC) */
 	CLOCK_ID_32KHZ,
@@ -424,7 +425,7 @@ enum periphc_internal_id {
 
 	/* 0x58 */
 	PERIPHC_58h,
-	PERIPHC_59h,
+	PERIPHC_SOR,
 	PERIPHC_5ah,
 	PERIPHC_5bh,
 	PERIPHC_SATAOOB,
diff --git a/arch/arm/include/asm/arch-tegra124/clock.h b/arch/arm/include/asm/arch-tegra124/clock.h
index 8e65086..e202cc5 100644
--- a/arch/arm/include/asm/arch-tegra124/clock.h
+++ b/arch/arm/include/asm/arch-tegra124/clock.h
@@ -16,6 +16,27 @@
 #define OSC_FREQ_SHIFT          28
 #define OSC_FREQ_MASK           (0xF << OSC_FREQ_SHIFT)
 
+/* CLK_RST_CONTROLLER_CLK_SOURCE_SOR0_0 */
+#define SOR0_CLK_SEL0			(1 << 14)
+#define SOR0_CLK_SEL1			(1 << 15)
+
 int tegra_plle_enable(void);
 
+void clock_sor_enable_edp_clock(void);
+
+/**
+ * clock_set_display_rate() - Set the display clock rate
+ *
+ * @frequency: the requested PLLD frequency
+ *
+ * Return the PLLD frequenc (which may not quite what was requested), or 0
+ * on failure
+ */
+u32 clock_set_display_rate(u32 frequency);
+
+/**
+ * clock_set_up_plldp() - Set up the EDP clock ready for use
+ */
+void clock_set_up_plldp(void);
+
 #endif	/* _TEGRA124_CLOCK_H_ */
diff --git a/arch/arm/include/asm/arch-tegra124/display.h b/arch/arm/include/asm/arch-tegra124/display.h
new file mode 100644
index 0000000..ca6644a
--- /dev/null
+++ b/arch/arm/include/asm/arch-tegra124/display.h
@@ -0,0 +1,58 @@
+/*
+ *  (C) Copyright 2010
+ *  NVIDIA Corporation <www.nvidia.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __ASM_ARCH_TEGRA_DISPLAY_H
+#define __ASM_ARCH_TEGRA_DISPLAY_H
+
+/**
+ * Register a new display based on device tree configuration.
+ *
+ * The frame buffer can be positioned by U-Boot or overriden by the fdt.
+ * You should pass in the U-Boot address here, and check the contents of
+ * struct fdt_disp_config to see what was actually chosen.
+ *
+ * @param blob			Device tree blob
+ * @param default_lcd_base	Default address of LCD frame buffer
+ * @return 0 if ok, -1 on error (unsupported bits per pixel)
+ */
+int tegra_display_probe(const void *blob, void *default_lcd_base);
+
+/**
+ * Return the current display configuration
+ *
+ * @return pointer to display configuration, or NULL if there is no valid
+ * config
+ */
+struct fdt_disp_config *tegra_display_get_config(void);
+
+/**
+ * Perform the next stage of the LCD init if it is time to do so.
+ *
+ * LCD init can be time-consuming because of the number of delays we need
+ * while waiting for the backlight power supply, etc. This function can
+ * be called at various times during U-Boot operation to advance the
+ * initialization of the LCD to the next stage if sufficient time has
+ * passed since the last stage. It keeps track of what stage it is up to
+ * and the time that it is permitted to move to the next stage.
+ *
+ * The final call should have wait=1 to complete the init.
+ *
+ * @param blob	fdt blob containing LCD information
+ * @param wait	1 to wait until all init is complete, and then return
+ *		0 to return immediately, potentially doing nothing if it is
+ *		not yet time for the next init.
+ */
+int tegra_lcd_check_next_stage(const void *blob, int wait);
+
+/**
+ * Set up the maximum LCD size so we can size the frame buffer.
+ *
+ * @param blob	fdt blob containing LCD information
+ */
+void tegra_lcd_early_init(const void *blob);
+
+#endif /*__ASM_ARCH_TEGRA_DISPLAY_H*/
diff --git a/arch/arm/include/asm/arch-tegra124/flow.h b/arch/arm/include/asm/arch-tegra124/flow.h
index 0db1881..d6f515f 100644
--- a/arch/arm/include/asm/arch-tegra124/flow.h
+++ b/arch/arm/include/asm/arch-tegra124/flow.h
@@ -37,4 +37,10 @@ struct flow_ctlr {
 /* FLOW_CTLR_CLUSTER_CONTROL_0 0x2c */
 #define ACTIVE_LP		(1 << 0)
 
+/* CPUn_CSR_0 */
+#define CSR_ENABLE		(1 << 0)
+#define CSR_IMMEDIATE_WAKE	(1 << 3)
+#define CSR_WAIT_WFI_SHIFT	8
+#define CSR_PWR_OFF_STS		(1 << 16)
+
 #endif	/*  _TEGRA124_FLOW_H_ */
diff --git a/arch/arm/include/asm/arch-tegra124/mc.h b/arch/arm/include/asm/arch-tegra124/mc.h
index d526dfe..37998a4 100644
--- a/arch/arm/include/asm/arch-tegra124/mc.h
+++ b/arch/arm/include/asm/arch-tegra124/mc.h
@@ -35,14 +35,47 @@ struct mc_ctlr {
 	u32 mc_emem_adr_cfg;			/* offset 0x54 */
 	u32 mc_emem_adr_cfg_dev0;		/* offset 0x58 */
 	u32 mc_emem_adr_cfg_dev1;		/* offset 0x5C */
-	u32 reserved3[12];			/* offset 0x60 - 0x8C */
+	u32 reserved3[4];			/* offset 0x60 - 0x6C */
+	u32 mc_security_cfg0;			/* offset 0x70 */
+	u32 mc_security_cfg1;			/* offset 0x74 */
+	u32 reserved4[6];			/* offset 0x7C - 0x8C */
 	u32 mc_emem_arb_reserved[28];		/* offset 0x90 - 0xFC */
-	u32 reserved4[338];			/* offset 0x100 - 0x644 */
+	u32 reserved5[74];			/* offset 0x100 - 0x224 */
+	u32 mc_smmu_translation_enable_0;	/* offset 0x228 */
+	u32 mc_smmu_translation_enable_1;	/* offset 0x22C */
+	u32 mc_smmu_translation_enable_2;	/* offset 0x230 */
+	u32 mc_smmu_translation_enable_3;	/* offset 0x234 */
+	u32 mc_smmu_afi_asid;			/* offset 0x238 */
+	u32 mc_smmu_avpc_asid;			/* offset 0x23C */
+	u32 mc_smmu_dc_asid;			/* offset 0x240 */
+	u32 mc_smmu_dcb_asid;			/* offset 0x244 */
+	u32 reserved6[2];                       /* offset 0x248 - 0x24C */
+	u32 mc_smmu_hc_asid;			/* offset 0x250 */
+	u32 mc_smmu_hda_asid;			/* offset 0x254 */
+	u32 mc_smmu_isp2_asid;			/* offset 0x258 */
+	u32 reserved7[2];                       /* offset 0x25C - 0x260 */
+	u32 mc_smmu_msenc_asid;			/* offset 0x264 */
+	u32 mc_smmu_nv_asid;			/* offset 0x268 */
+	u32 mc_smmu_nv2_asid;			/* offset 0x26C */
+	u32 mc_smmu_ppcs_asid;			/* offset 0x270 */
+	u32 mc_smmu_sata_asid;			/* offset 0x274 */
+	u32 reserved8[1];                       /* offset 0x278 */
+	u32 mc_smmu_vde_asid;			/* offset 0x27C */
+	u32 mc_smmu_vi_asid;			/* offset 0x280 */
+	u32 mc_smmu_vic_asid;			/* offset 0x284 */
+	u32 mc_smmu_xusb_host_asid;		/* offset 0x288 */
+	u32 mc_smmu_xusb_dev_asid;		/* offset 0x28C */
+	u32 reserved9[1];                       /* offset 0x290 */
+	u32 mc_smmu_tsec_asid;			/* offset 0x294 */
+	u32 mc_smmu_ppcs1_asid;			/* offset 0x298 */
+	u32 reserved10[235];			/* offset 0x29C - 0x644 */
 	u32 mc_video_protect_bom;		/* offset 0x648 */
 	u32 mc_video_protect_size_mb;		/* offset 0x64c */
 	u32 mc_video_protect_reg_ctrl;		/* offset 0x650 */
 };
 
+#define TEGRA_MC_SMMU_CONFIG_ENABLE (1 << 0)
+
 #define TEGRA_MC_VIDEO_PROTECT_REG_WRITE_ACCESS_ENABLED		(0 << 0)
 #define TEGRA_MC_VIDEO_PROTECT_REG_WRITE_ACCESS_DISABLED	(1 << 0)
 
diff --git a/arch/arm/include/asm/arch-tegra124/pwm.h b/arch/arm/include/asm/arch-tegra124/pwm.h
new file mode 100644
index 0000000..3d2c432
--- /dev/null
+++ b/arch/arm/include/asm/arch-tegra124/pwm.h
@@ -0,0 +1,14 @@
+/*
+ * Tegra pulse width frequency modulator definitions
+ *
+ * Copyright (c) 2011 The Chromium OS Authors.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __ASM_ARCH_TEGRA124_PWM_H
+#define __ASM_ARCH_TEGRA124_PWM_H
+
+#include <asm/arch-tegra/pwm.h>
+
+#endif	/* __ASM_ARCH_TEGRA124_PWM_H */
diff --git a/arch/arm/include/asm/arch-tegra20/display.h b/arch/arm/include/asm/arch-tegra20/display.h
index 6feeda3..018c9f9 100644
--- a/arch/arm/include/asm/arch-tegra20/display.h
+++ b/arch/arm/include/asm/arch-tegra20/display.h
@@ -8,7 +8,7 @@
 #ifndef __ASM_ARCH_TEGRA_DISPLAY_H
 #define __ASM_ARCH_TEGRA_DISPLAY_H
 
-#include <asm/arch/dc.h>
+#include <asm/arch-tegra/dc.h>
 #include <fdtdec.h>
 #include <asm/gpio.h>
 
diff --git a/arch/arm/include/asm/arch-tegra20/pwm.h b/arch/arm/include/asm/arch-tegra20/pwm.h
index 8e7397d..2207d9c 100644
--- a/arch/arm/include/asm/arch-tegra20/pwm.h
+++ b/arch/arm/include/asm/arch-tegra20/pwm.h
@@ -6,55 +6,9 @@
  * SPDX-License-Identifier:	GPL-2.0+
  */
 
-#ifndef __ASM_ARCH_TEGRA_PWM_H
-#define __ASM_ARCH_TEGRA_PWM_H
+#ifndef __ASM_ARCH_TEGRA20_PWM_H
+#define __ASM_ARCH_TEGRA20_PWM_H
 
-/* This is a single PWM channel */
-struct pwm_ctlr {
-	uint control;		/* Control register */
-	uint reserved[3];	/* Space space */
-};
+#include <asm/arch-tegra/pwm.h>
 
-#define PWM_NUM_CHANNELS	4
-
-/* PWM_CONTROLLER_PWM_CSR_0/1/2/3_0 */
-#define PWM_ENABLE_SHIFT	31
-#define PWM_ENABLE_MASK	(0x1 << PWM_ENABLE_SHIFT)
-
-#define PWM_WIDTH_SHIFT	16
-#define PWM_WIDTH_MASK		(0x7FFF << PWM_WIDTH_SHIFT)
-
-#define PWM_DIVIDER_SHIFT	0
-#define PWM_DIVIDER_MASK	(0x1FFF << PWM_DIVIDER_SHIFT)
-
-/**
- * Program the PWM with the given parameters.
- *
- * @param channel	PWM channel to update
- * @param rate		Clock rate to use for PWM
- * @param pulse_width	high pulse width: 0=always low, 1=1/256 pulse high,
- *			n = n/256 pulse high
- * @param freq_divider	frequency divider value (1 to use rate as is)
- */
-void pwm_enable(unsigned channel, int rate, int pulse_width, int freq_divider);
-
-/**
- * Request a pwm channel as referenced by a device tree node.
- *
- * This channel can then be passed to pwm_enable().
- *
- * @param blob		Device tree blob
- * @param node		Node containing reference to pwm
- * @param prop_name	Property name of pwm reference
- * @return channel number, if ok, else -1
- */
-int pwm_request(const void *blob, int node, const char *prop_name);
-
-/**
- * Set up the pwm controller, by looking it up in the fdt.
- *
- * @return 0 if ok, -1 if the device tree node was not found or invalid.
- */
-int pwm_init(const void *blob);
-
-#endif	/* __ASM_ARCH_TEGRA_PWM_H */
+#endif	/* __ASM_ARCH_TEGRA20_PWM_H */
diff --git a/arch/arm/include/asm/armv7.h b/arch/arm/include/asm/armv7.h
index cbe7dc1..30e7939 100644
--- a/arch/arm/include/asm/armv7.h
+++ b/arch/arm/include/asm/armv7.h
@@ -131,9 +131,10 @@ void v7_outer_cache_inval_all(void);
 void v7_outer_cache_flush_range(u32 start, u32 end);
 void v7_outer_cache_inval_range(u32 start, u32 end);
 
-#if defined(CONFIG_ARMV7_NONSEC) || defined(CONFIG_ARMV7_VIRT)
+#ifdef CONFIG_ARMV7_NONSEC
 
 int armv7_init_nonsec(void);
+int armv7_apply_memory_carveout(u64 *start, u64 *size);
 bool armv7_boot_nonsec(void);
 
 /* defined in assembly file */
@@ -145,7 +146,7 @@ void _smp_pen(void);
 extern char __secure_start[];
 extern char __secure_end[];
 
-#endif /* CONFIG_ARMV7_NONSEC || CONFIG_ARMV7_VIRT */
+#endif /* CONFIG_ARMV7_NONSEC */
 
 void v7_arch_cp15_set_l2aux_ctrl(u32 l2auxctrl, u32 cpu_midr,
 				 u32 cpu_rev_comb, u32 cpu_variant,
diff --git a/arch/arm/include/asm/psci.h b/arch/arm/include/asm/psci.h
index 50a3ca4..128a606 100644
--- a/arch/arm/include/asm/psci.h
+++ b/arch/arm/include/asm/psci.h
@@ -34,6 +34,7 @@
 
 #ifndef __ASSEMBLY__
 int psci_update_dt(void *fdt);
+void psci_board_init(void);
 #endif /* ! __ASSEMBLY__ */
 
 #endif /* __ARM_PSCI_H__ */
diff --git a/arch/arm/include/asm/system.h b/arch/arm/include/asm/system.h
index 9cd2f1e..fe10335 100644
--- a/arch/arm/include/asm/system.h
+++ b/arch/arm/include/asm/system.h
@@ -77,6 +77,7 @@ void armv8_switch_to_el1(void);
 void gic_init(void);
 void gic_send_sgi(unsigned long sgino);
 void wait_for_wakeup(void);
+void protect_secure_region(void);
 void smp_kick_all_cpus(void);
 
 void flush_l3_cache(void);
diff --git a/arch/arm/lib/bootm-fdt.c b/arch/arm/lib/bootm-fdt.c
index 665a3bc..0eb10a8 100644
--- a/arch/arm/lib/bootm-fdt.c
+++ b/arch/arm/lib/bootm-fdt.c
@@ -17,6 +17,7 @@
 
 #include <common.h>
 #include <fdt_support.h>
+#include <asm/armv7.h>
 #include <asm/psci.h>
 
 DECLARE_GLOBAL_DATA_PTR;
@@ -31,10 +32,15 @@ int arch_fixup_fdt(void *blob)
 	for (bank = 0; bank < CONFIG_NR_DRAM_BANKS; bank++) {
 		start[bank] = bd->bi_dram[bank].start;
 		size[bank] = bd->bi_dram[bank].size;
+#ifdef CONFIG_ARMV7_NONSEC
+		ret = armv7_apply_memory_carveout(&start[bank], &size[bank]);
+		if (ret)
+			return ret;
+#endif
 	}
 
 	ret = fdt_fixup_memory_banks(blob, start, size, CONFIG_NR_DRAM_BANKS);
-#if defined(CONFIG_ARMV7_NONSEC) || defined(CONFIG_ARMV7_VIRT)
+#ifdef CONFIG_ARMV7_NONSEC
 	if (ret)
 		return ret;
 
diff --git a/arch/arm/lib/bootm.c b/arch/arm/lib/bootm.c
index b1bff8c..ee56d74 100644
--- a/arch/arm/lib/bootm.c
+++ b/arch/arm/lib/bootm.c
@@ -26,7 +26,7 @@
 #include <bootm.h>
 #include <vxworks.h>
 
-#if defined(CONFIG_ARMV7_NONSEC) || defined(CONFIG_ARMV7_VIRT)
+#ifdef CONFIG_ARMV7_NONSEC
 #include <asm/armv7.h>
 #endif
 
@@ -238,7 +238,7 @@ static void boot_prep_linux(bootm_headers_t *images)
 	}
 }
 
-#if defined(CONFIG_ARMV7_NONSEC) || defined(CONFIG_ARMV7_VIRT)
+#ifdef CONFIG_ARMV7_NONSEC
 bool armv7_boot_nonsec(void)
 {
 	char *s = getenv("bootm_boot_mode");
@@ -305,7 +305,7 @@ static void boot_jump_linux(bootm_headers_t *images, int flag)
 		r2 = gd->bd->bi_boot_params;
 
 	if (!fake) {
-#if defined(CONFIG_ARMV7_NONSEC) || defined(CONFIG_ARMV7_VIRT)
+#ifdef CONFIG_ARMV7_NONSEC
 		if (armv7_boot_nonsec()) {
 			armv7_init_nonsec();
 			secure_ram_addr(_do_nonsec_entry)(kernel_entry,
diff --git a/arch/arm/mach-tegra/Makefile b/arch/arm/mach-tegra/Makefile
index 04cef0a..fefc180 100644
--- a/arch/arm/mach-tegra/Makefile
+++ b/arch/arm/mach-tegra/Makefile
@@ -12,10 +12,11 @@ obj-y += spl.o
 obj-y += cpu.o
 else
 obj-$(CONFIG_CMD_ENTERRCM) += cmd_enterrcm.o
+obj-$(CONFIG_PWM_TEGRA) += pwm.o
 endif
 
 obj-y += ap.o
-obj-y += board.o
+obj-y += board.o board2.o
 obj-y += cache.o
 obj-y += clock.o
 obj-y += lowlevel_init.o
@@ -24,6 +25,11 @@ obj-y += powergate.o
 obj-y += xusb-padctl.o
 obj-$(CONFIG_DISPLAY_CPUINFO) += sys_info.o
 obj-$(CONFIG_TEGRA124) += vpr.o
+obj-$(CONFIG_TEGRA_CLOCK_SCALING) += emc.o
+
+ifndef CONFIG_SPL_BUILD
+obj-$(CONFIG_ARMV7_PSCI) += psci.o
+endif
 
 obj-$(CONFIG_TEGRA20) += tegra20/
 obj-$(CONFIG_TEGRA30) += tegra30/
diff --git a/arch/arm/mach-tegra/ap.c b/arch/arm/mach-tegra/ap.c
index a17dfd1..0b94e8a 100644
--- a/arch/arm/mach-tegra/ap.c
+++ b/arch/arm/mach-tegra/ap.c
@@ -10,6 +10,7 @@
 #include <common.h>
 #include <asm/io.h>
 #include <asm/arch/gp_padctrl.h>
+#include <asm/arch/mc.h>
 #include <asm/arch-tegra/ap.h>
 #include <asm/arch-tegra/clock.h>
 #include <asm/arch-tegra/fuse.h>
@@ -154,6 +155,57 @@ static void init_pmc_scratch(void)
 	writel(odmdata, &pmc->pmc_scratch20);
 }
 
+#ifdef CONFIG_ARMV7_SECURE_RESERVE_SIZE
+void protect_secure_section(void)
+{
+	struct mc_ctlr *mc = (struct mc_ctlr *)NV_PA_MC_BASE;
+
+	/* Must be MB aligned */
+	BUILD_BUG_ON(CONFIG_ARMV7_SECURE_BASE & 0xFFFFF);
+	BUILD_BUG_ON(CONFIG_ARMV7_SECURE_RESERVE_SIZE & 0xFFFFF);
+
+	writel(CONFIG_ARMV7_SECURE_BASE, &mc->mc_security_cfg0);
+	writel(CONFIG_ARMV7_SECURE_RESERVE_SIZE >> 20, &mc->mc_security_cfg1);
+}
+#endif
+
+#if defined(CONFIG_ARMV7_NONSEC)
+static void smmu_flush(struct mc_ctlr *mc)
+{
+	(void)readl(&mc->mc_smmu_config);
+}
+
+static void smmu_enable(void)
+{
+	struct mc_ctlr *mc = (struct mc_ctlr *)NV_PA_MC_BASE;
+	u32 value;
+
+	/*
+	 * Enable translation for all clients since access to this register
+	 * is restricted to TrustZone-secured requestors. The kernel will use
+	 * the per-SWGROUP enable bits to enable or disable translations.
+	 */
+	writel(0xffffffff, &mc->mc_smmu_translation_enable_0);
+	writel(0xffffffff, &mc->mc_smmu_translation_enable_1);
+	writel(0xffffffff, &mc->mc_smmu_translation_enable_2);
+	writel(0xffffffff, &mc->mc_smmu_translation_enable_3);
+
+	/*
+	 * Enable SMMU globally since access to this register is restricted
+	 * to TrustZone-secured requestors.
+	 */
+	value = readl(&mc->mc_smmu_config);
+	value |= TEGRA_MC_SMMU_CONFIG_ENABLE;
+	writel(value, &mc->mc_smmu_config);
+
+	smmu_flush(mc);
+}
+#else
+static void smmu_enable(void)
+{
+}
+#endif
+
 void s_init(void)
 {
 	/* Init PMC scratch memory */
@@ -164,6 +216,9 @@ void s_init(void)
 	/* init the cache */
 	config_cache();
 
+	/* enable SMMU */
+	smmu_enable();
+
 	/* init vpr */
 	config_vpr();
 }
diff --git a/arch/arm/mach-tegra/board.c b/arch/arm/mach-tegra/board.c
index 0ebaf19..222de6a 100644
--- a/arch/arm/mach-tegra/board.c
+++ b/arch/arm/mach-tegra/board.c
@@ -98,14 +98,6 @@ int dram_init(void)
 	return 0;
 }
 
-#ifdef CONFIG_DISPLAY_BOARDINFO
-int checkboard(void)
-{
-	printf("Board: %s\n", sysinfo.board_string);
-	return 0;
-}
-#endif	/* CONFIG_DISPLAY_BOARDINFO */
-
 static int uart_configs[] = {
 #if defined(CONFIG_TEGRA20)
  #if defined(CONFIG_TEGRA_UARTA_UAA_UAB)
diff --git a/arch/arm/mach-tegra/board2.c b/arch/arm/mach-tegra/board2.c
new file mode 100644
index 0000000..131802a
--- /dev/null
+++ b/arch/arm/mach-tegra/board2.c
@@ -0,0 +1,273 @@
+/*
+ *  (C) Copyright 2010,2011
+ *  NVIDIA Corporation <www.nvidia.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <errno.h>
+#include <ns16550.h>
+#include <linux/compiler.h>
+#include <asm/io.h>
+#include <asm/arch/clock.h>
+#ifdef CONFIG_LCD
+#include <asm/arch/display.h>
+#endif
+#include <asm/arch/funcmux.h>
+#include <asm/arch/pinmux.h>
+#include <asm/arch/pmu.h>
+#ifdef CONFIG_PWM_TEGRA
+#include <asm/arch/pwm.h>
+#endif
+#include <asm/arch/tegra.h>
+#include <asm/arch-tegra/ap.h>
+#include <asm/arch-tegra/board.h>
+#include <asm/arch-tegra/clk_rst.h>
+#include <asm/arch-tegra/pmc.h>
+#include <asm/arch-tegra/sys_proto.h>
+#include <asm/arch-tegra/uart.h>
+#include <asm/arch-tegra/warmboot.h>
+#ifdef CONFIG_TEGRA_CLOCK_SCALING
+#include <asm/arch/emc.h>
+#endif
+#ifdef CONFIG_USB_EHCI_TEGRA
+#include <asm/arch-tegra/usb.h>
+#include <usb.h>
+#endif
+#ifdef CONFIG_TEGRA_MMC
+#include <asm/arch-tegra/tegra_mmc.h>
+#include <asm/arch-tegra/mmc.h>
+#endif
+#include <asm/arch-tegra/xusb-padctl.h>
+#include <power/as3722.h>
+#include <i2c.h>
+#include <spi.h>
+#include "emc.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#ifdef CONFIG_SPL_BUILD
+/* TODO(sjg@chromium.org): Remove once SPL supports device tree */
+U_BOOT_DEVICE(tegra_gpios) = {
+	"gpio_tegra"
+};
+#endif
+
+__weak void pinmux_init(void) {}
+__weak void pin_mux_usb(void) {}
+__weak void pin_mux_spi(void) {}
+__weak void gpio_early_init_uart(void) {}
+__weak void pin_mux_display(void) {}
+
+#if defined(CONFIG_TEGRA_NAND)
+__weak void pin_mux_nand(void)
+{
+	funcmux_select(PERIPH_ID_NDFLASH, FUNCMUX_DEFAULT);
+}
+#endif
+
+/*
+ * Routine: power_det_init
+ * Description: turn off power detects
+ */
+static void power_det_init(void)
+{
+#if defined(CONFIG_TEGRA20)
+	struct pmc_ctlr *const pmc = (struct pmc_ctlr *)NV_PA_PMC_BASE;
+
+	/* turn off power detects */
+	writel(0, &pmc->pmc_pwr_det_latch);
+	writel(0, &pmc->pmc_pwr_det);
+#endif
+}
+
+__weak int tegra_board_id(void)
+{
+	return -1;
+}
+
+#ifdef CONFIG_DISPLAY_BOARDINFO
+int checkboard(void)
+{
+	int board_id = tegra_board_id();
+
+	printf("Board: %s", CONFIG_TEGRA_BOARD_STRING);
+	if (board_id != -1)
+		printf(", ID: %d\n", board_id);
+	printf("\n");
+
+	return 0;
+}
+#endif	/* CONFIG_DISPLAY_BOARDINFO */
+
+__weak int tegra_lcd_pmic_init(int board_it)
+{
+	return 0;
+}
+
+/*
+ * Routine: board_init
+ * Description: Early hardware init.
+ */
+int board_init(void)
+{
+	__maybe_unused int err;
+	__maybe_unused int board_id;
+
+	/* Do clocks and UART first so that printf() works */
+	clock_init();
+	clock_verify();
+
+#ifdef CONFIG_TEGRA_SPI
+	pin_mux_spi();
+#endif
+
+#ifdef CONFIG_PWM_TEGRA
+	if (pwm_init(gd->fdt_blob))
+		debug("%s: Failed to init pwm\n", __func__);
+#endif
+#ifdef CONFIG_LCD
+	pin_mux_display();
+	tegra_lcd_check_next_stage(gd->fdt_blob, 0);
+#endif
+	/* boot param addr */
+	gd->bd->bi_boot_params = (NV_PA_SDRAM_BASE + 0x100);
+
+	power_det_init();
+
+#ifdef CONFIG_SYS_I2C_TEGRA
+# ifdef CONFIG_TEGRA_PMU
+	if (pmu_set_nominal())
+		debug("Failed to select nominal voltages\n");
+#  ifdef CONFIG_TEGRA_CLOCK_SCALING
+	err = board_emc_init();
+	if (err)
+		debug("Memory controller init failed: %d\n", err);
+#  endif
+# endif /* CONFIG_TEGRA_PMU */
+#ifdef CONFIG_AS3722_POWER
+	err = as3722_init(NULL);
+	if (err && err != -ENODEV)
+		return err;
+#endif
+#endif /* CONFIG_SYS_I2C_TEGRA */
+
+#ifdef CONFIG_USB_EHCI_TEGRA
+	pin_mux_usb();
+	usb_process_devicetree(gd->fdt_blob);
+#endif
+
+#ifdef CONFIG_LCD
+	board_id = tegra_board_id();
+	err = tegra_lcd_pmic_init(board_id);
+	if (err)
+		return err;
+	tegra_lcd_check_next_stage(gd->fdt_blob, 0);
+#endif
+
+#ifdef CONFIG_TEGRA_NAND
+	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();
+
+	/* prepare the WB code to LP0 location */
+	warmboot_prepare_code(TEGRA_LP0_ADDR, TEGRA_LP0_SIZE);
+#endif
+
+	return 0;
+}
+
+#ifdef CONFIG_BOARD_EARLY_INIT_F
+static void __gpio_early_init(void)
+{
+}
+
+void gpio_early_init(void) __attribute__((weak, alias("__gpio_early_init")));
+
+int board_early_init_f(void)
+{
+	pinmux_init();
+	board_init_uart_f();
+
+	/* Initialize periph GPIOs */
+	gpio_early_init();
+	gpio_early_init_uart();
+#ifdef CONFIG_LCD
+	tegra_lcd_early_init(gd->fdt_blob);
+#endif
+
+	return 0;
+}
+#endif	/* EARLY_INIT */
+
+int board_late_init(void)
+{
+#ifdef CONFIG_LCD
+	/* Make sure we finish initing the LCD */
+	tegra_lcd_check_next_stage(gd->fdt_blob, 1);
+#endif
+#if defined(CONFIG_TEGRA_SUPPORT_NON_SECURE)
+	if (tegra_cpu_is_non_secure()) {
+		printf("CPU is in NS mode\n");
+		setenv("cpu_ns_mode", "1");
+	} else {
+		setenv("cpu_ns_mode", "");
+	}
+#endif
+	return 0;
+}
+
+#if defined(CONFIG_TEGRA_MMC)
+__weak void pin_mux_mmc(void)
+{
+}
+
+/* this is a weak define that we are overriding */
+int board_mmc_init(bd_t *bd)
+{
+	debug("%s called\n", __func__);
+
+	/* Enable muxes, etc. for SDMMC controllers */
+	pin_mux_mmc();
+
+	debug("%s: init MMC\n", __func__);
+	tegra_mmc_init();
+
+	return 0;
+}
+
+void pad_init_mmc(struct mmc_host *host)
+{
+#if defined(CONFIG_TEGRA30)
+	enum periph_id id = host->mmc_id;
+	u32 val;
+
+	debug("%s: sdmmc address = %08x, id = %d\n", __func__,
+		(unsigned int)host->reg, id);
+
+	/* Set the pad drive strength for SDMMC1 or 3 only */
+	if (id != PERIPH_ID_SDMMC1 && id != PERIPH_ID_SDMMC3) {
+		debug("%s: settings are only valid for SDMMC1/SDMMC3!\n",
+			__func__);
+		return;
+	}
+
+	val = readl(&host->reg->sdmemcmppadctl);
+	val &= 0xFFFFFFF0;
+	val |= MEMCOMP_PADCTRL_VREF;
+	writel(val, &host->reg->sdmemcmppadctl);
+
+	val = readl(&host->reg->autocalcfg);
+	val &= 0xFFFF0000;
+	val |= AUTO_CAL_PU_OFFSET | AUTO_CAL_PD_OFFSET | AUTO_CAL_ENABLED;
+	writel(val, &host->reg->autocalcfg);
+#endif	/* T30 */
+}
+#endif	/* MMC */
diff --git a/arch/arm/mach-tegra/clock.c b/arch/arm/mach-tegra/clock.c
index 7c274b5..cdd5438 100644
--- a/arch/arm/mach-tegra/clock.c
+++ b/arch/arm/mach-tegra/clock.c
@@ -81,9 +81,18 @@ static struct clk_pll *get_pll(enum clock_id clkid)
 			(struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE;
 
 	assert(clock_id_is_pll(clkid));
+	if (clkid >= (enum clock_id)TEGRA_CLK_PLLS) {
+		debug("%s: Invalid PLL\n", __func__);
+		return NULL;
+	}
 	return &clkrst->crc_pll[clkid];
 }
 
+__weak struct clk_pll_simple *clock_get_simple_pll(enum clock_id clkid)
+{
+	return NULL;
+}
+
 int clock_ll_read_pll(enum clock_id clkid, u32 *divm, u32 *divn,
 		u32 *divp, u32 *cpcon, u32 *lfcon)
 {
@@ -110,7 +119,7 @@ unsigned long clock_start_pll(enum clock_id clkid, u32 divm, u32 divn,
 		u32 divp, u32 cpcon, u32 lfcon)
 {
 	struct clk_pll *pll = get_pll(clkid);
-	u32 data;
+	u32 misc_data, data;
 
 	/*
 	 * We cheat by treating all PLL (except PLLU) in the same fashion.
@@ -119,8 +128,7 @@ unsigned long clock_start_pll(enum clock_id clkid, u32 divm, u32 divn,
 	 * - DCCON is always 0, doesn't conflict
 	 * - M,N, P of PLLP values are ignored for PLLP
 	 */
-	data = (cpcon << PLL_CPCON_SHIFT) | (lfcon << PLL_LFCON_SHIFT);
-	writel(data, &pll->pll_misc);
+	misc_data = (cpcon << PLL_CPCON_SHIFT) | (lfcon << PLL_LFCON_SHIFT);
 
 	data = (divm << PLL_DIVM_SHIFT) | (divn << PLL_DIVN_SHIFT) |
 			(0 << PLL_BYPASS_SHIFT) | (1 << PLL_ENABLE_SHIFT);
@@ -129,7 +137,19 @@ unsigned long clock_start_pll(enum clock_id clkid, u32 divm, u32 divn,
 		data |= divp << PLLU_VCO_FREQ_SHIFT;
 	else
 		data |= divp << PLL_DIVP_SHIFT;
-	writel(data, &pll->pll_base);
+	if (pll) {
+		writel(misc_data, &pll->pll_misc);
+		writel(data, &pll->pll_base);
+	} else {
+		struct clk_pll_simple *pll = clock_get_simple_pll(clkid);
+
+		if (!pll) {
+			debug("%s: Uknown simple PLL %d\n", __func__, clkid);
+			return 0;
+		}
+		writel(misc_data, &pll->pll_misc);
+		writel(data, &pll->pll_base);
+	}
 
 	/* calculate the stable time */
 	return timer_get_us() + CLOCK_PLL_STABLE_DELAY_US;
@@ -152,12 +172,37 @@ void clock_ll_set_source_divisor(enum periph_id periph_id, unsigned source,
 	writel(value, reg);
 }
 
-void clock_ll_set_source(enum periph_id periph_id, unsigned source)
+int clock_ll_set_source_bits(enum periph_id periph_id, int mux_bits,
+			     unsigned source)
 {
 	u32 *reg = get_periph_source_reg(periph_id);
 
-	clrsetbits_le32(reg, OUT_CLK_SOURCE_31_30_MASK,
-			source << OUT_CLK_SOURCE_31_30_SHIFT);
+	switch (mux_bits) {
+	case MASK_BITS_31_30:
+		clrsetbits_le32(reg, OUT_CLK_SOURCE_31_30_MASK,
+				source << OUT_CLK_SOURCE_31_30_SHIFT);
+		break;
+
+	case MASK_BITS_31_29:
+		clrsetbits_le32(reg, OUT_CLK_SOURCE_31_29_MASK,
+				source << OUT_CLK_SOURCE_31_29_SHIFT);
+		break;
+
+	case MASK_BITS_31_28:
+		clrsetbits_le32(reg, OUT_CLK_SOURCE_31_28_MASK,
+				source << OUT_CLK_SOURCE_31_28_SHIFT);
+		break;
+
+	default:
+		return -1;
+	}
+
+	return 0;
+}
+
+void clock_ll_set_source(enum periph_id periph_id, unsigned source)
+{
+	clock_ll_set_source_bits(periph_id, MASK_BITS_31_30, source);
 }
 
 /**
@@ -306,25 +351,7 @@ static int adjust_periph_pll(enum periph_id periph_id, int source,
 	if (source < 0)
 		return -1;
 
-	switch (mux_bits) {
-	case MASK_BITS_31_30:
-		clrsetbits_le32(reg, OUT_CLK_SOURCE_31_30_MASK,
-				source << OUT_CLK_SOURCE_31_30_SHIFT);
-		break;
-
-	case MASK_BITS_31_29:
-		clrsetbits_le32(reg, OUT_CLK_SOURCE_31_29_MASK,
-				source << OUT_CLK_SOURCE_31_29_SHIFT);
-		break;
-
-	case MASK_BITS_31_28:
-		clrsetbits_le32(reg, OUT_CLK_SOURCE_31_28_MASK,
-				source << OUT_CLK_SOURCE_31_28_SHIFT);
-		break;
-
-	default:
-		return -1;
-	}
+	clock_ll_set_source_bits(periph_id, mux_bits, source);
 
 	udelay(2);
 	return 0;
@@ -431,6 +458,8 @@ unsigned clock_get_rate(enum clock_id clkid)
 		return parent_rate;
 
 	pll = get_pll(clkid);
+	if (!pll)
+		return 0;
 	base = readl(&pll->pll_base);
 
 	/* Oh for bf_unpack()... */
@@ -564,6 +593,7 @@ void clock_init(void)
 	pll_rate[CLOCK_ID_MEMORY] = clock_get_rate(CLOCK_ID_MEMORY);
 	pll_rate[CLOCK_ID_PERIPH] = clock_get_rate(CLOCK_ID_PERIPH);
 	pll_rate[CLOCK_ID_CGENERAL] = clock_get_rate(CLOCK_ID_CGENERAL);
+	pll_rate[CLOCK_ID_DISPLAY] = clock_get_rate(CLOCK_ID_DISPLAY);
 	pll_rate[CLOCK_ID_OSC] = clock_get_rate(CLOCK_ID_OSC);
 	pll_rate[CLOCK_ID_SFROM32KHZ] = 32768;
 	pll_rate[CLOCK_ID_XCPU] = clock_get_rate(CLOCK_ID_XCPU);
@@ -571,6 +601,7 @@ void clock_init(void)
 	debug("PLLM = %d\n", pll_rate[CLOCK_ID_MEMORY]);
 	debug("PLLP = %d\n", pll_rate[CLOCK_ID_PERIPH]);
 	debug("PLLC = %d\n", pll_rate[CLOCK_ID_CGENERAL]);
+	debug("PLLD = %d\n", pll_rate[CLOCK_ID_DISPLAY]);
 	debug("PLLX = %d\n", pll_rate[CLOCK_ID_XCPU]);
 
 	/* Do any special system timer/TSC setup */
diff --git a/arch/arm/mach-tegra/emc.c b/arch/arm/mach-tegra/emc.c
new file mode 100644
index 0000000..8c62f36
--- /dev/null
+++ b/arch/arm/mach-tegra/emc.c
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2011 The Chromium OS Authors.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include "emc.h"
+#include <asm/io.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/emc.h>
+#include <asm/arch/pmu.h>
+#include <asm/arch/tegra.h>
+#include <asm/arch-tegra/ap.h>
+#include <asm/arch-tegra/clk_rst.h>
+#include <asm/arch-tegra/sys_proto.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/* These rates are hard-coded for now, until fdt provides them */
+#define EMC_SDRAM_RATE_T20	(333000 * 2 * 1000)
+#define EMC_SDRAM_RATE_T25	(380000 * 2 * 1000)
+
+int board_emc_init(void)
+{
+	unsigned rate;
+
+	switch (tegra_get_chip_sku()) {
+	default:
+	case TEGRA_SOC_T20:
+		rate  = EMC_SDRAM_RATE_T20;
+		break;
+	case TEGRA_SOC_T25:
+		rate  = EMC_SDRAM_RATE_T25;
+		break;
+	}
+	return tegra_set_emc(gd->fdt_blob, rate);
+}
diff --git a/arch/arm/mach-tegra/emc.h b/arch/arm/mach-tegra/emc.h
new file mode 100644
index 0000000..4095235
--- /dev/null
+++ b/arch/arm/mach-tegra/emc.h
@@ -0,0 +1,13 @@
+/*
+ * Copyright (c) 2011 The Chromium OS Authors.
+ * (C) Copyright 2010,2011 NVIDIA Corporation <www.nvidia.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef _NVIDIA_EMC_H_
+#define _NVIDIA_EMC_H_
+
+int board_emc_init(void);
+
+#endif
diff --git a/arch/arm/mach-tegra/powergate.c b/arch/arm/mach-tegra/powergate.c
index 439cff3..6331cd4 100644
--- a/arch/arm/mach-tegra/powergate.c
+++ b/arch/arm/mach-tegra/powergate.c
@@ -44,7 +44,7 @@ static int tegra_powergate_set(enum tegra_powergate id, bool state)
 	return -ETIMEDOUT;
 }
 
-static int tegra_powergate_power_on(enum tegra_powergate id)
+int tegra_powergate_power_on(enum tegra_powergate id)
 {
 	return tegra_powergate_set(id, true);
 }
diff --git a/arch/arm/mach-tegra/psci.S b/arch/arm/mach-tegra/psci.S
new file mode 100644
index 0000000..b836da1
--- /dev/null
+++ b/arch/arm/mach-tegra/psci.S
@@ -0,0 +1,114 @@
+/*
+ * Copyright (C) 2014, NVIDIA
+ * Copyright (C) 2015, Siemens AG
+ *
+ * Authors:
+ *  Thierry Reding <treding@nvidia.com>
+ *  Jan Kiszka <jan.kiszka@siemens.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <linux/linkage.h>
+#include <asm/macro.h>
+#include <asm/psci.h>
+
+	.pushsection ._secure.text, "ax"
+	.arch_extension sec
+
+#define TEGRA_SB_CSR_0			0x6000c200
+#define NS_RST_VEC_WR_DIS		(1 << 1)
+
+#define TEGRA_RESET_EXCEPTION_VECTOR	0x6000f100
+
+#define TEGRA_FLOW_CTRL_BASE		0x60007000
+#define FLOW_CTRL_CPU_CSR		0x08
+#define CSR_ENABLE			(1 << 0)
+#define CSR_IMMEDIATE_WAKE		(1 << 3)
+#define CSR_WAIT_WFI_SHIFT		8
+#define FLOW_CTRL_CPU1_CSR		0x18
+
+@ converts CPU ID into FLOW_CTRL_CPUn_CSR offset
+.macro get_csr_reg cpu, ofs, tmp
+	cmp	\cpu, #0		@ CPU0?
+	lsl	\tmp, \cpu, #3	@ multiple by 8 (register offset CPU1-3)
+	moveq	\ofs, #FLOW_CTRL_CPU_CSR
+	addne	\ofs, \tmp, #FLOW_CTRL_CPU1_CSR - 8
+.endm
+
+ENTRY(psci_arch_init)
+	mov	r6, lr
+
+	mrc	p15, 0, r5, c1, c1, 0	@ Read SCR
+	bic	r5, r5, #1		@ Secure mode
+	mcr	p15, 0, r5, c1, c1, 0	@ Write SCR
+	isb
+
+	@ lock reset vector for non-secure
+	ldr	r4, =TEGRA_SB_CSR_0
+	ldr	r5, [r4]
+	orr	r5, r5, #NS_RST_VEC_WR_DIS
+	str	r5, [r4]
+
+	bl	psci_get_cpu_id		@ CPU ID => r0
+
+	adr	r5, _sys_clock_freq
+	cmp	r0, #0
+
+	mrceq	p15, 0, r7, c14, c0, 0	@ read CNTFRQ from CPU0
+	streq	r7, [r5]
+
+	ldrne	r7, [r5]
+	mcrne	p15, 0, r7, c14, c0, 0	@ write CNTFRQ to CPU1..3
+
+	bl	psci_get_cpu_stack_top	@ stack top => r0
+	mov	sp, r0
+
+	bx	r6
+ENDPROC(psci_arch_init)
+
+_sys_clock_freq:
+	.word	0
+
+ENTRY(psci_cpu_off)
+	bl	psci_cpu_off_common
+
+	bl	psci_get_cpu_id		@ CPU ID => r0
+
+	get_csr_reg r0, r2, r3
+
+	ldr	r6, =TEGRA_FLOW_CTRL_BASE
+	mov	r5, #(CSR_ENABLE)
+	mov	r4, #(1 << CSR_WAIT_WFI_SHIFT)
+	add	r5, r4, lsl r0
+	str	r5, [r6, r2]
+
+_loop:	wfi
+	b	_loop
+ENDPROC(psci_cpu_off)
+
+ENTRY(psci_cpu_on)
+	push	{lr}
+
+	mov	r0, r1
+	bl	psci_get_cpu_stack_top	@ get stack top of target CPU
+	str	r2, [r0]		@ store target PC at stack top
+	dsb
+
+	ldr	r6, =TEGRA_RESET_EXCEPTION_VECTOR
+	ldr	r5, =psci_cpu_entry
+	str	r5, [r6]
+
+	get_csr_reg r1, r2, r3
+
+	ldr	r6, =TEGRA_FLOW_CTRL_BASE
+	mov	r5, #(CSR_IMMEDIATE_WAKE | CSR_ENABLE)
+	str	r5, [r6, r2]
+
+	mov	r0, #ARM_PSCI_RET_SUCCESS	@ Return PSCI_RET_SUCCESS
+	pop	{pc}
+ENDPROC(psci_cpu_on)
+
+	.globl psci_text_end
+psci_text_end:
+	.popsection
diff --git a/arch/arm/mach-tegra/tegra20/pwm.c b/arch/arm/mach-tegra/pwm.c
index 5b88636..1c38fc1 100644
--- a/arch/arm/mach-tegra/tegra20/pwm.c
+++ b/arch/arm/mach-tegra/pwm.c
@@ -1,5 +1,5 @@
 /*
- * Tegra2 pulse width frequency modulator definitions
+ * Tegra pulse width frequency modulator definitions
  *
  * Copyright (c) 2011 The Chromium OS Authors.
  *
@@ -24,7 +24,10 @@ void pwm_enable(unsigned channel, int rate, int pulse_width, int freq_divider)
 	assert(channel < PWM_NUM_CHANNELS);
 
 	/* TODO: Can we use clock_adjust_periph_pll_div() here? */
-	clock_start_periph_pll(PERIPH_ID_PWM, CLOCK_ID_SFROM32KHZ, rate);
+	if (rate) {
+		clock_start_periph_pll(PERIPH_ID_PWM, CLOCK_ID_SFROM32KHZ,
+				       rate);
+	}
 
 	reg = PWM_ENABLE_MASK;
 	reg |= pulse_width << PWM_WIDTH_SHIFT;
diff --git a/arch/arm/mach-tegra/tegra124/Kconfig b/arch/arm/mach-tegra/tegra124/Kconfig
index 36bb636..6579e3f 100644
--- a/arch/arm/mach-tegra/tegra124/Kconfig
+++ b/arch/arm/mach-tegra/tegra124/Kconfig
@@ -6,6 +6,8 @@ choice
 
 config TARGET_JETSON_TK1
 	bool "NVIDIA Tegra124 Jetson TK1 board"
+	select CPU_V7_HAS_NONSEC if !SPL_BUILD
+	select CPU_V7_HAS_VIRT if !SPL_BUILD
 
 config TARGET_NYAN_BIG
 	bool "Google/NVIDIA Nyan-big Chrombook"
diff --git a/arch/arm/mach-tegra/tegra124/Makefile b/arch/arm/mach-tegra/tegra124/Makefile
index ef2da29..f577f45 100644
--- a/arch/arm/mach-tegra/tegra124/Makefile
+++ b/arch/arm/mach-tegra/tegra124/Makefile
@@ -11,3 +11,7 @@ obj-y	+= clock.o
 obj-y	+= funcmux.o
 obj-y	+= pinmux.o
 obj-y	+= xusb-padctl.o
+
+ifndef CONFIG_SPL_BUILD
+obj-$(CONFIG_ARMV7_NONSEC) += psci.o
+endif
diff --git a/arch/arm/mach-tegra/tegra124/clock.c b/arch/arm/mach-tegra/tegra124/clock.c
index fc8bd19..2d17550 100644
--- a/arch/arm/mach-tegra/tegra124/clock.c
+++ b/arch/arm/mach-tegra/tegra124/clock.c
@@ -42,6 +42,7 @@ enum clock_type_id {
 	CLOCK_TYPE_ASPTE,
 	CLOCK_TYPE_PMDACD2T,
 	CLOCK_TYPE_PCST,
+	CLOCK_TYPE_DP,
 
 	CLOCK_TYPE_PC2CC3M,
 	CLOCK_TYPE_PC2CC3S_T,
@@ -101,6 +102,10 @@ static enum clock_id clock_source[CLOCK_TYPE_COUNT][CLOCK_MAX_MUX+1] = {
 	{ CLK(PERIPH),	CLK(CGENERAL),	CLK(SFROM32KHZ),	CLK(OSC),
 		CLK(NONE),	CLK(NONE),	CLK(NONE),	CLK(NONE),
 		MASK_BITS_31_28},
+	/* CLOCK_TYPE_DP */
+	{ CLK(NONE),	CLK(NONE),	CLK(NONE),	CLK(NONE),
+		CLK(NONE),	CLK(NONE),	CLK(NONE),	CLK(NONE),
+		MASK_BITS_31_28},
 
 	/* Additional clock types on Tegra114+ */
 	/* CLOCK_TYPE_PC2CC3M */
@@ -259,7 +264,7 @@ static enum clock_type_id clock_periph_type[PERIPHC_COUNT] = {
 
 	/* 0x58 */
 	TYPE(PERIPHC_58h,	CLOCK_TYPE_NONE),
-	TYPE(PERIPHC_59h,	CLOCK_TYPE_NONE),
+	TYPE(PERIPHC_SOR,	CLOCK_TYPE_NONE),
 	TYPE(PERIPHC_5ah,	CLOCK_TYPE_NONE),
 	TYPE(PERIPHC_5bh,	CLOCK_TYPE_NONE),
 	TYPE(PERIPHC_SATAOOB,	CLOCK_TYPE_PCMT),
@@ -546,7 +551,7 @@ static s8 periph_id_to_internal_id[PERIPH_ID_COUNT] = {
 	NONE(X_RESERVED19),
 	NONE(ADX1),
 	NONE(DPAUX),
-	NONE(SOR0),
+	PERIPHC_SOR,
 	NONE(X_RESERVED23),
 
 	/* 184 */
@@ -594,7 +599,10 @@ u32 *get_periph_source_reg(enum periph_id periph_id)
 	assert(periph_id >= PERIPH_ID_FIRST && periph_id < PERIPH_ID_COUNT);
 	internal_id = periph_id_to_internal_id[periph_id];
 	assert(internal_id != -1);
-	if (internal_id >= PERIPHC_VW_FIRST) {
+	if (internal_id >= PERIPHC_X_FIRST) {
+		internal_id -= PERIPHC_X_FIRST;
+		return &clkrst->crc_clk_src_x[internal_id];
+	} else if (internal_id >= PERIPHC_VW_FIRST) {
 		internal_id -= PERIPHC_VW_FIRST;
 		return &clkrst->crc_clk_src_vw[internal_id];
 	} else {
@@ -657,8 +665,10 @@ void clock_set_enable(enum periph_id periph_id, int enable)
 	assert(clock_periph_id_isvalid(periph_id));
 	if ((int)periph_id < (int)PERIPH_ID_VW_FIRST)
 		clk = &clkrst->crc_clk_out_enb[PERIPH_REG(periph_id)];
-	else
+	else if ((int)periph_id < PERIPH_ID_X_FIRST)
 		clk = &clkrst->crc_clk_out_enb_vw[PERIPH_REG(periph_id)];
+	else
+		clk = &clkrst->crc_clk_out_enb_x;
 	reg = readl(clk);
 	if (enable)
 		reg |= PERIPH_MASK(periph_id);
@@ -678,8 +688,10 @@ void reset_set_enable(enum periph_id periph_id, int enable)
 	assert(clock_periph_id_isvalid(periph_id));
 	if (periph_id < PERIPH_ID_VW_FIRST)
 		reset = &clkrst->crc_rst_dev[PERIPH_REG(periph_id)];
-	else
+	else if ((int)periph_id < PERIPH_ID_X_FIRST)
 		reset = &clkrst->crc_rst_dev_vw[PERIPH_REG(periph_id)];
+	else
+		reset = &clkrst->crc_rst_devices_x;
 	reg = readl(reset);
 	if (enable)
 		reg |= PERIPH_MASK(periph_id);
@@ -933,3 +945,122 @@ int tegra_plle_enable(void)
 
 	return 0;
 }
+
+void clock_sor_enable_edp_clock(void)
+{
+	u32 *reg;
+
+	/* uses PLLP, has a non-standard bit layout. */
+	reg = get_periph_source_reg(PERIPH_ID_SOR0);
+	setbits_le32(reg, SOR0_CLK_SEL0);
+}
+
+u32 clock_set_display_rate(u32 frequency)
+{
+	/**
+	 * plld (fo) = vco >> p, where 500MHz < vco < 1000MHz
+	 *           = (cf * n) >> p, where 1MHz < cf < 6MHz
+	 *           = ((ref / m) * n) >> p
+	 *
+	 * Iterate the possible values of p (3 bits, 2^7) to find out a minimum
+	 * safe vco, then find best (m, n). since m has only 5 bits, we can
+	 * iterate all possible values.  Note Tegra 124 supports 11 bits for n,
+	 * but our pll_fields has only 10 bits for n.
+	 *
+	 * Note values undershoot or overshoot target output frequency may not
+	 * work if the values are not in "safe" range by panel specification.
+	 */
+	u32 ref = clock_get_rate(CLOCK_ID_OSC);
+	u32 divm, divn, divp, cpcon;
+	u32 cf, vco, rounded_rate = frequency;
+	u32 diff, best_diff, best_m = 0, best_n = 0, best_p;
+	const u32 max_m = 1 << 5, max_n = 1 << 10, max_p = 1 << 3,
+		  mhz = 1000 * 1000, min_vco = 500 * mhz, max_vco = 1000 * mhz,
+		  min_cf = 1 * mhz, max_cf = 6 * mhz;
+	int mux_bits, divider_bits, source;
+
+	for (divp = 0, vco = frequency; vco < min_vco && divp < max_p; divp++)
+		vco <<= 1;
+
+	if (vco < min_vco || vco > max_vco) {
+		printf("%s: Cannot find out a supported VCO for Frequency (%u)\n",
+		       __func__, frequency);
+		return 0;
+	}
+
+	best_p = divp;
+	best_diff = vco;
+
+	for (divm = 1; divm < max_m && best_diff; divm++) {
+		cf = ref / divm;
+		if (cf < min_cf)
+			break;
+		if (cf > max_cf)
+			continue;
+
+		divn = vco / cf;
+		if (divn >= max_n)
+			continue;
+
+		diff = vco - divn * cf;
+		if (divn + 1 < max_n && diff > cf / 2) {
+			divn++;
+			diff = cf - diff;
+		}
+
+		if (diff >= best_diff)
+			continue;
+
+		best_diff = diff;
+		best_m = divm;
+		best_n = divn;
+	}
+
+	if (best_n < 50)
+		cpcon = 2;
+	else if (best_n < 300)
+		cpcon = 3;
+	else if (best_n < 600)
+		cpcon = 8;
+	else
+		cpcon = 12;
+
+	if (best_diff) {
+		printf("%s: Failed to match output frequency %u, best difference is %u\n",
+		       __func__, frequency, best_diff);
+		rounded_rate = (ref / best_m * best_n) >> best_p;
+	}
+
+	debug("%s: PLLD=%u ref=%u, m/n/p/cpcon=%u/%u/%u/%u\n",
+	      __func__, rounded_rate, ref, best_m, best_n, best_p, cpcon);
+
+	source = get_periph_clock_source(PERIPH_ID_DISP1, CLOCK_ID_DISPLAY,
+					 &mux_bits, &divider_bits);
+	clock_ll_set_source_bits(PERIPH_ID_DISP1, mux_bits, source);
+	clock_set_rate(CLOCK_ID_DISPLAY, best_n, best_m, best_p, cpcon);
+
+	return rounded_rate;
+}
+
+void clock_set_up_plldp(void)
+{
+	struct clk_rst_ctlr *clkrst =
+			(struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE;
+	u32 value;
+
+	value = PLLDP_SS_CFG_UNDOCUMENTED | PLLDP_SS_CFG_DITHER;
+	writel(value | PLLDP_SS_CFG_CLAMP, &clkrst->crc_plldp_ss_cfg);
+	clock_start_pll(CLOCK_ID_DP, 1, 90, 3, 0, 0);
+	writel(value, &clkrst->crc_plldp_ss_cfg);
+}
+
+struct clk_pll_simple *clock_get_simple_pll(enum clock_id clkid)
+{
+	struct clk_rst_ctlr *clkrst =
+			(struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE;
+
+	if (clkid == CLOCK_ID_DP)
+		return &clkrst->plldp;
+
+	return NULL;
+}
diff --git a/arch/arm/mach-tegra/tegra124/psci.c b/arch/arm/mach-tegra/tegra124/psci.c
new file mode 100644
index 0000000..16d1965
--- /dev/null
+++ b/arch/arm/mach-tegra/tegra124/psci.c
@@ -0,0 +1,59 @@
+/*
+ * (C) Copyright 2015, Siemens AG
+ * Author: Jan Kiszka <jan.kiszka@siemens.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/psci.h>
+#include <asm/arch/flow.h>
+#include <asm/arch/powergate.h>
+#include <asm/arch-tegra/ap.h>
+#include <asm/arch-tegra/pmc.h>
+
+static void park_cpu(void)
+{
+	while (1)
+		asm volatile("wfi");
+}
+
+/**
+ * Initialize power management for application processors
+ */
+void psci_board_init(void)
+{
+	struct flow_ctlr *flow = (struct flow_ctlr *)NV_PA_FLOW_BASE;
+
+	writel((u32)park_cpu, EXCEP_VECTOR_CPU_RESET_VECTOR);
+
+	/*
+	 * The naturally expected order of putting these CPUs under Flow
+	 * Controller regime would be
+	 *  - configure the Flow Controller
+	 *  - power up the CPUs
+	 *  - wait for the CPUs to hit wfi and be powered down again
+	 *
+	 * However, this doesn't work in practice. We rather need to power them
+	 * up first and park them in wfi. While they are waiting there, we can
+	 * indeed program the Flow Controller to powergate them on wfi, which
+	 * will then happen immediately as they are already in that state.
+	 */
+	tegra_powergate_power_on(TEGRA_POWERGATE_CPU1);
+	tegra_powergate_power_on(TEGRA_POWERGATE_CPU2);
+	tegra_powergate_power_on(TEGRA_POWERGATE_CPU3);
+
+	writel((2 << CSR_WAIT_WFI_SHIFT) | CSR_ENABLE, &flow->cpu1_csr);
+	writel((4 << CSR_WAIT_WFI_SHIFT) | CSR_ENABLE, &flow->cpu2_csr);
+	writel((8 << CSR_WAIT_WFI_SHIFT) | CSR_ENABLE, &flow->cpu3_csr);
+
+	writel(EVENT_MODE_STOP, &flow->halt_cpu1_events);
+	writel(EVENT_MODE_STOP, &flow->halt_cpu2_events);
+	writel(EVENT_MODE_STOP, &flow->halt_cpu3_events);
+
+	while (!(readl(&flow->cpu1_csr) & CSR_PWR_OFF_STS) ||
+		!(readl(&flow->cpu2_csr) & CSR_PWR_OFF_STS) ||
+		!(readl(&flow->cpu3_csr) & CSR_PWR_OFF_STS))
+		/* wait */;
+}
diff --git a/arch/arm/mach-tegra/tegra20/Makefile b/arch/arm/mach-tegra/tegra20/Makefile
index d48f9bb..fc3fb4a 100644
--- a/arch/arm/mach-tegra/tegra20/Makefile
+++ b/arch/arm/mach-tegra/tegra20/Makefile
@@ -7,7 +7,6 @@
 ifdef CONFIG_SPL_BUILD
 obj-y	+= cpu.o
 else
-obj-$(CONFIG_PWM_TEGRA) += pwm.o
 obj-$(CONFIG_VIDEO_TEGRA) += display.o
 endif
 
diff --git a/arch/arm/mach-tegra/tegra20/display.c b/arch/arm/mach-tegra/tegra20/display.c
index 61efed6..b7605ff 100644
--- a/arch/arm/mach-tegra/tegra20/display.c
+++ b/arch/arm/mach-tegra/tegra20/display.c
@@ -10,7 +10,7 @@
 #include <asm/arch/clock.h>
 #include <asm/arch/tegra.h>
 #include <asm/arch/display.h>
-#include <asm/arch/dc.h>
+#include <asm/arch-tegra/dc.h>
 #include <asm/arch-tegra/clk_rst.h>
 #include <asm/arch-tegra/timer.h>