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

Pull "ARM: device tree work" from Arnd Bergmann:
 "Most of these patches convert code from using static platform data to
  describing the hardware in the device tree.  This is only the first
  half of the changes for v3.4 because a lot of patches for this topic
  came in the last week before the merge window.

  Signed-off-by: Arnd Bergmann <arnd@arndb.de>"

Fix up trivial conflicts in arch/arm/mach-vexpress/{Kconfig,core.h}

* tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (86 commits)
  Document: devicetree: add OF documents for arch-mmp
  ARM: dts: append DTS file of pxa168
  ARM: mmp: append OF support on pxa168
  ARM: mmp: enable rtc clk in pxa168
  i2c: pxa: add OF support
  serial: pxa: add OF support
  arm/dts: mt_ventoux: very basic support for TeeJet Mt.Ventoux board
  ARM: OMAP2+: Remove extra ifdefs for board-generic
  ARM: OMAP2+: Fix build error when only ARCH_OMAP2/3 or 4 is selected
  ASoC: DT: Add digital microphone binding to PAZ00 board.
  ARM: dt: Add ARM PMU to tegra*.dtsi
  ARM: at91: at91sam9x5cm/dt: add leds support
  ARM: at91: usb_a9g20/dt: add gpio-keys support
  ARM: at91: at91sam9m10g45ek/dt: add gpio-keys support
  ARM: at91: at91sam9m10g45ek/dt: add leds support
  ARM: at91: usb_a9g20/dt: add leds support
  ARM: at91/pio: add new PIO3 features
  ARM: at91: add sam9_smc.o to at91sam9x5 build
  ARM: at91/tc/clocksource: Add 32 bit variant to Timer Counter
  ARM: at91/tc: add device tree support to atmel_tclib
  ...

1 files changed, 28 insertions, 7 deletions

diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c
index d554e6771b4e..6c9d5e69ac28 100644
--- a/arch/arm/mach-at91/pm.c
+++ b/arch/arm/mach-at91/pm.c
@@ -136,7 +136,7 @@ static int at91_pm_verify_clocks(void)
 	unsigned long scsr;
 	int i;
 
-	scsr = at91_sys_read(AT91_PMC_SCSR);
+	scsr = at91_pmc_read(AT91_PMC_SCSR);
 
 	/* USB must not be using PLLB */
 	if (cpu_is_at91rm9200()) {
@@ -160,7 +160,7 @@ static int at91_pm_verify_clocks(void)
 		if ((scsr & (AT91_PMC_PCK0 << i)) == 0)
 			continue;
 
-		css = at91_sys_read(AT91_PMC_PCKR(i)) & AT91_PMC_CSS;
+		css = at91_pmc_read(AT91_PMC_PCKR(i)) & AT91_PMC_CSS;
 		if (css != AT91_PMC_CSS_SLOW) {
 			pr_err("AT91: PM - Suspend-to-RAM with PCK%d src %d\n", i, css);
 			return 0;
@@ -188,13 +188,27 @@ int at91_suspend_entering_slow_clock(void)
 EXPORT_SYMBOL(at91_suspend_entering_slow_clock);
 
 
-static void (*slow_clock)(void);
+static void (*slow_clock)(void __iomem *pmc, void __iomem *ramc0,
+			  void __iomem *ramc1, int memctrl);
 
 #ifdef CONFIG_AT91_SLOW_CLOCK
-extern void at91_slow_clock(void);
+extern void at91_slow_clock(void __iomem *pmc, void __iomem *ramc0,
+			    void __iomem *ramc1, int memctrl);
 extern u32 at91_slow_clock_sz;
 #endif
 
+void __iomem *at91_ramc_base[2];
+
+void __init at91_ioremap_ramc(int id, u32 addr, u32 size)
+{
+	if (id < 0 || id > 1) {
+		pr_emerg("Wrong RAM controller id (%d), cannot continue\n", id);
+		BUG();
+	}
+	at91_ramc_base[id] = ioremap(addr, size);
+	if (!at91_ramc_base[id])
+		panic("Impossible to ioremap ramc.%d 0x%x\n", id, addr);
+}
 
 static int at91_pm_enter(suspend_state_t state)
 {
@@ -203,7 +217,7 @@ static int at91_pm_enter(suspend_state_t state)
 
 	pr_debug("AT91: PM - wake mask %08x, pm state %d\n",
 			/* remember all the always-wake irqs */
-			(at91_sys_read(AT91_PMC_PCSR)
+			(at91_pmc_read(AT91_PMC_PCSR)
 					| (1 << AT91_ID_FIQ)
 					| (1 << AT91_ID_SYS)
 					| (at91_extern_irq))
@@ -228,11 +242,18 @@ static int at91_pm_enter(suspend_state_t state)
 			 * turning off the main oscillator; reverse on wakeup.
 			 */
 			if (slow_clock) {
+				int memctrl = AT91_MEMCTRL_SDRAMC;
+
+				if (cpu_is_at91rm9200())
+					memctrl = AT91_MEMCTRL_MC;
+				else if (cpu_is_at91sam9g45())
+					memctrl = AT91_MEMCTRL_DDRSDR;
 #ifdef CONFIG_AT91_SLOW_CLOCK
 				/* copy slow_clock handler to SRAM, and call it */
 				memcpy(slow_clock, at91_slow_clock, at91_slow_clock_sz);
 #endif
-				slow_clock();
+				slow_clock(at91_pmc_base, at91_ramc_base[0],
+					   at91_ramc_base[1], memctrl);
 				break;
 			} else {
 				pr_info("AT91: PM - no slow clock mode enabled ...\n");
@@ -301,7 +322,7 @@ static int __init at91_pm_init(void)
 
 #ifdef CONFIG_ARCH_AT91RM9200
 	/* AT91RM9200 SDRAM low-power mode cannot be used with self-refresh. */
-	at91_sys_write(AT91_SDRAMC_LPR, 0);
+	at91_ramc_write(0, AT91RM9200_SDRAMC_LPR, 0);
 #endif
 
 	suspend_set_ops(&at91_pm_ops);