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

Pull ARM soc device tree updates from Olof Johansson:
 "Device tree conversion and enablement branch.  Mostly a bunch of new
  bindings and setup for various platforms, but the Via/Winchip VT8500
  platform is also converted over from being 100% legacy to now use
  device tree for probing.  More of that will come for 3.8."

Trivial conflicts due to removal of vt8500 files, and one documentation
file that was added with slightly different contents both here and in
the USb tree.

* tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (212 commits)
  arm: vt8500: Fixup for missing gpio.h
  ARM: LPC32xx: LED fix in PHY3250 DTS file
  ARM: dt: mmp-dma: add binding file
  arm: vt8500: Update arch-vt8500 to devicetree support.
  arm: vt8500: gpio: Devicetree support for arch-vt8500
  arm: vt8500: doc: Add device tree bindings for arch-vt8500 devices
  arm: vt8500: clk: Add Common Clock Framework support
  video: vt8500: Add devicetree support for vt8500-fb and wm8505-fb
  serial: vt8500: Add devicetree support for vt8500-serial
  rtc: vt8500: Add devicetree support for vt8500-rtc
  arm: vt8500: Add device tree files for VIA/Wondermedia SoC's
  ARM: tegra: Add Avionic Design Tamonten Evaluation Carrier support
  ARM: tegra: Add Avionic Design Medcom-Wide support
  ARM: tegra: Add Avionic Design Plutux support
  ARM: tegra: Add Avionic Design Tamonten support
  ARM: tegra: dts: Add pwm label
  ARM: ux500: Fix SSP register address format
  ARM: ux500: Apply tc3589x's GPIO/IRQ properties to HREF's DT
  ARM: ux500: Remove redundant #gpio-cell properties from Snowball DT
  ARM: ux500: Add all encompassing sound node to the HREF Device Tree
  ...

5 files changed, 145 insertions, 2 deletions

diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index 346fd26f3aa..edc30b8b77e 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -18,12 +18,16 @@ config ARCH_OMAP2PLUS_TYPICAL
 	select TWL4030_CORE if ARCH_OMAP3 || ARCH_OMAP4
 	select TWL4030_POWER if ARCH_OMAP3 || ARCH_OMAP4
 	select HIGHMEM
+	select PINCTRL
 	help
 	  Compile a kernel suitable for booting most boards
 
 config SOC_HAS_OMAP2_SDRC
 	bool "OMAP2 SDRAM Controller support"
 
+config SOC_HAS_REALTIME_COUNTER
+	bool "Real time free running counter"
+
 config ARCH_OMAP2
 	bool "TI OMAP2"
 	depends on ARCH_OMAP2PLUS
@@ -70,6 +74,8 @@ config SOC_OMAP5
 	select ARM_GIC
 	select HAVE_SMP
 	select ARM_CPU_SUSPEND if PM
+	select SOC_HAS_REALTIME_COUNTER
+	select ARM_ARCH_TIMER
 
 comment "OMAP Core Type"
 	depends on ARCH_OMAP2
diff --git a/arch/arm/mach-omap2/Makefile.boot b/arch/arm/mach-omap2/Makefile.boot
index b03e562acc6..be0fe9226d6 100644
--- a/arch/arm/mach-omap2/Makefile.boot
+++ b/arch/arm/mach-omap2/Makefile.boot
@@ -1,3 +1,9 @@
   zreladdr-y		+= 0x80008000
 params_phys-y		:= 0x80000100
 initrd_phys-y		:= 0x80800000
+
+dtb-$(CONFIG_SOC_OMAP2420)	+= omap2420-h4.dtb
+dtb-$(CONFIG_ARCH_OMAP3)	+= omap3-beagle-xm.dtb omap3-evm.dtb omap3-tobi.dtb
+dtb-$(CONFIG_ARCH_OMAP4)	+= omap4-panda.dtb omap4-pandaES.dtb
+dtb-$(CONFIG_ARCH_OMAP4)	+= omap4-var_som.dtb omap4-sdp.dtb
+dtb-$(CONFIG_SOC_OMAP5)		+= omap5-evm.dtb
diff --git a/arch/arm/mach-omap2/omap4-common.c b/arch/arm/mach-omap2/omap4-common.c
index 9fc865502f0..e1f289748c5 100644
--- a/arch/arm/mach-omap2/omap4-common.c
+++ b/arch/arm/mach-omap2/omap4-common.c
@@ -170,7 +170,10 @@ static int __init omap_l2_cache_init(void)
 	/* Enable PL310 L2 Cache controller */
 	omap_smc1(0x102, 0x1);
 
-	l2x0_init(l2cache_base, aux_ctrl, L2X0_AUX_CTRL_MASK);
+	if (of_have_populated_dt())
+		l2x0_of_init(aux_ctrl, L2X0_AUX_CTRL_MASK);
+	else
+		l2x0_init(l2cache_base, aux_ctrl, L2X0_AUX_CTRL_MASK);
 
 	/*
 	 * Override default outer_cache.disable with a OMAP4
diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index 7d843cd3b33..00c006686b0 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -3329,6 +3329,33 @@ int omap_hwmod_fill_resources(struct omap_hwmod *oh, struct resource *res)
 }
 
 /**
+ * omap_hwmod_fill_dma_resources - fill struct resource array with dma data
+ * @oh: struct omap_hwmod *
+ * @res: pointer to the array of struct resource to fill
+ *
+ * Fill the struct resource array @res with dma resource data from the
+ * omap_hwmod @oh.  Intended to be called by code that registers
+ * omap_devices.  See also omap_hwmod_count_resources().  Returns the
+ * number of array elements filled.
+ */
+int omap_hwmod_fill_dma_resources(struct omap_hwmod *oh, struct resource *res)
+{
+	int i, sdma_reqs_cnt;
+	int r = 0;
+
+	sdma_reqs_cnt = _count_sdma_reqs(oh);
+	for (i = 0; i < sdma_reqs_cnt; i++) {
+		(res + r)->name = (oh->sdma_reqs + i)->name;
+		(res + r)->start = (oh->sdma_reqs + i)->dma_req;
+		(res + r)->end = (oh->sdma_reqs + i)->dma_req;
+		(res + r)->flags = IORESOURCE_DMA;
+		r++;
+	}
+
+	return r;
+}
+
+/**
  * omap_hwmod_get_resource_byname - fetch IP block integration data by name
  * @oh: struct omap_hwmod * to operate on
  * @type: one of the IORESOURCE_* constants from include/linux/ioport.h
diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c
index 5214d5bfba2..8847d6eb231 100644
--- a/arch/arm/mach-omap2/timer.c
+++ b/arch/arm/mach-omap2/timer.c
@@ -36,11 +36,13 @@
 #include <linux/clocksource.h>
 #include <linux/clockchips.h>
 #include <linux/slab.h>
+#include <linux/of.h>
 
 #include <asm/mach/time.h>
 #include <asm/smp_twd.h>
 #include <asm/sched_clock.h>
 
+#include <asm/arch_timer.h>
 #include <plat/omap_hwmod.h>
 #include <plat/omap_device.h>
 #include <plat/dmtimer.h>
@@ -71,6 +73,11 @@
 #define OMAP3_SECURE_TIMER	1
 #endif
 
+#define REALTIME_COUNTER_BASE				0x48243200
+#define INCREMENTER_NUMERATOR_OFFSET			0x10
+#define INCREMENTER_DENUMERATOR_RELOAD_OFFSET		0x14
+#define NUMERATOR_DENUMERATOR_MASK			0xfffff000
+
 /* Clockevent code */
 
 static struct omap_dm_timer clkev;
@@ -348,6 +355,84 @@ static void __init omap2_clocksource_init(int gptimer_id,
 		omap2_gptimer_clocksource_init(gptimer_id, fck_source);
 }
 
+#ifdef CONFIG_SOC_HAS_REALTIME_COUNTER
+/*
+ * The realtime counter also called master counter, is a free-running
+ * counter, which is related to real time. It produces the count used
+ * by the CPU local timer peripherals in the MPU cluster. The timer counts
+ * at a rate of 6.144 MHz. Because the device operates on different clocks
+ * in different power modes, the master counter shifts operation between
+ * clocks, adjusting the increment per clock in hardware accordingly to
+ * maintain a constant count rate.
+ */
+static void __init realtime_counter_init(void)
+{
+	void __iomem *base;
+	static struct clk *sys_clk;
+	unsigned long rate;
+	unsigned int reg, num, den;
+
+	base = ioremap(REALTIME_COUNTER_BASE, SZ_32);
+	if (!base) {
+		pr_err("%s: ioremap failed\n", __func__);
+		return;
+	}
+	sys_clk = clk_get(NULL, "sys_clkin_ck");
+	if (!sys_clk) {
+		pr_err("%s: failed to get system clock handle\n", __func__);
+		iounmap(base);
+		return;
+	}
+
+	rate = clk_get_rate(sys_clk);
+	/* Numerator/denumerator values refer TRM Realtime Counter section */
+	switch (rate) {
+	case 1200000:
+		num = 64;
+		den = 125;
+		break;
+	case 1300000:
+		num = 768;
+		den = 1625;
+		break;
+	case 19200000:
+		num = 8;
+		den = 25;
+		break;
+	case 2600000:
+		num = 384;
+		den = 1625;
+		break;
+	case 2700000:
+		num = 256;
+		den = 1125;
+		break;
+	case 38400000:
+	default:
+		/* Program it for 38.4 MHz */
+		num = 4;
+		den = 25;
+		break;
+	}
+
+	/* Program numerator and denumerator registers */
+	reg = __raw_readl(base + INCREMENTER_NUMERATOR_OFFSET) &
+			NUMERATOR_DENUMERATOR_MASK;
+	reg |= num;
+	__raw_writel(reg, base + INCREMENTER_NUMERATOR_OFFSET);
+
+	reg = __raw_readl(base + INCREMENTER_NUMERATOR_OFFSET) &
+			NUMERATOR_DENUMERATOR_MASK;
+	reg |= den;
+	__raw_writel(reg, base + INCREMENTER_DENUMERATOR_RELOAD_OFFSET);
+
+	iounmap(base);
+}
+#else
+static inline void __init realtime_counter_init(void)
+{}
+#endif
+
 #define OMAP_SYS_TIMER_INIT(name, clkev_nr, clkev_src,			\
 				clksrc_nr, clksrc_src)			\
 static void __init omap##name##_timer_init(void)			\
@@ -394,6 +479,11 @@ static void __init omap4_timer_init(void)
 	if (omap_rev() != OMAP4430_REV_ES1_0) {
 		int err;
 
+		if (of_have_populated_dt()) {
+			twd_local_timer_of_register();
+			return;
+		}
+
 		err = twd_local_timer_register(&twd_local_timer);
 		if (err)
 			pr_err("twd_local_timer_register failed %d\n", err);
@@ -404,7 +494,18 @@ OMAP_SYS_TIMER(4)
 #endif
 
 #ifdef CONFIG_SOC_OMAP5
-OMAP_SYS_TIMER_INIT(5, 1, OMAP4_CLKEV_SOURCE, 2, OMAP4_MPU_SOURCE)
+static void __init omap5_timer_init(void)
+{
+	int err;
+
+	omap2_gp_clockevent_init(1, OMAP4_CLKEV_SOURCE);
+	omap2_clocksource_init(2, OMAP4_MPU_SOURCE);
+	realtime_counter_init();
+
+	err = arch_timer_of_register();
+	if (err)
+		pr_err("%s: arch_timer_register failed %d\n", __func__, err);
+}
 OMAP_SYS_TIMER(5)
 #endif