Merge tag 'soc-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC specific changes from Arnd Bergmann:
 "Lots of changes specific to one of the SoC families.  Some that stick
  out are:

   - mach-qcom gains new features, most importantly SMP support for the
     newer chips (Stephen Boyd, Rohit Vaswani)
   - mvebu gains support for three new SoCs: Armada 375, 380 and 385
     (Thomas Petazzoni and Free-electrons team)
   - SMP support for Rockchips (Heiko Stübner)
   - Lots of i.MX changes (Shawn Guo)
   - Added support for BCM5301x SoC (Hauke Mehrtens)
   - Multiplatform support for Marvell Kirkwood and Dove (Andrew Lunn
     and Sebastian Hesselbarth doing the final part of a long journey)
   - Unify davinci platforms and remove obsolete ones (Sekhar Nori, Arnd
     Bergmann)"

* tag 'soc-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (126 commits)
  ARM: sunxi: Select HAVE_ARM_ARCH_TIMER
  ARM: cache-tauros2: remove ARMv6 code
  ARM: mvebu: don't select CONFIG_NEON
  ARM: davinci: fix DT booting with default defconfig
  ARM: configs: bcm_defconfig: enable bcm590xx regulator support
  ARM: davinci: remove tnetv107x support
  MAINTAINERS: Update ARM STi maintainers
  ARM: restrict BCM_KONA_UART to ARCH_BCM_MOBILE
  ARM: bcm21664: Add board support.
  ARM: sunxi: Add the new watchog compatibles to the reboot code
  ARM: enable ARM_HAS_SG_CHAIN for multiplatform
  ARM: davinci: remove da8xx_omapl_defconfig
  ARM: davinci: da8xx: fix multiple watchdog device registration
  ARM: davinci: add da8xx specific configs to davinci_all_defconfig
  ARM: davinci: enable da8xx build concurrently with older devices
  ARM: BCM5301X: workaround suppress fault
  ARM: BCM5301X: add early debugging support
  ARM: BCM5301X: initial support for the BCM5301X/BCM470X SoCs with ARM CPU
  ARM: mach-bcm: Remove GENERIC_TIME
  ARM: shmobile: APMU: Fix warnings due to improper printk formats
  ...

4 files changed, 35 insertions, 4 deletions

diff --git a/arch/arm/include/asm/firmware.h b/arch/arm/include/asm/firmware.h
index 15631300c238..2c9f10df7568 100644
--- a/arch/arm/include/asm/firmware.h
+++ b/arch/arm/include/asm/firmware.h
@@ -22,6 +22,10 @@
  */
 struct firmware_ops {
         /*
+         * Inform the firmware we intend to enter CPU idle mode
+         */
+        int (*prepare_idle)(void);
+        /*
          * Enters CPU idle mode
          */
         int (*do_idle)(void);
diff --git a/arch/arm/include/asm/hardware/cache-feroceon-l2.h b/arch/arm/include/asm/hardware/cache-feroceon-l2.h
new file mode 100644
index 000000000000..12e1588dc4f1
--- /dev/null
+++ b/arch/arm/include/asm/hardware/cache-feroceon-l2.h
@@ -0,0 +1,13 @@
+/*
+ * arch/arm/include/asm/hardware/cache-feroceon-l2.h
+ *
+ * Copyright (C) 2008 Marvell Semiconductor
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+extern void __init feroceon_l2_init(int l2_wt_override);
+extern int __init feroceon_of_init(void);
+
diff --git a/arch/arm/include/asm/smp.h b/arch/arm/include/asm/smp.h
index 4157aec4e307..2ec765c39ab4 100644
--- a/arch/arm/include/asm/smp.h
+++ b/arch/arm/include/asm/smp.h
@@ -115,6 +115,15 @@ struct smp_operations {
 #endif
 };
 
+struct of_cpu_method {
+        const char *method;
+        struct smp_operations *ops;
+};
+
+#define CPU_METHOD_OF_DECLARE(name, _method, _ops)                      \
+        static const struct of_cpu_method __cpu_method_of_table_##name  \
+                __used __section(__cpu_method_of_table)                 \
+                = { .method = _method, .ops = _ops }
 /*
  * set platform specific SMP operations
  */
diff --git a/arch/arm/include/asm/trusted_foundations.h b/arch/arm/include/asm/trusted_foundations.h
index 3bd36e2c5f2e..b5f7705abcb0 100644
--- a/arch/arm/include/asm/trusted_foundations.h
+++ b/arch/arm/include/asm/trusted_foundations.h
@@ -30,6 +30,8 @@
 #include <linux/printk.h>
 #include <linux/bug.h>
 #include <linux/of.h>
+#include <linux/cpu.h>
+#include <linux/smp.h>
 
 struct trusted_foundations_platform_data {
         unsigned int version_major;
@@ -47,10 +49,13 @@ static inline void register_trusted_foundations(
                                    struct trusted_foundations_platform_data *pd)
 {
         /*
-         * If we try to register TF, this means the system needs it to continue.
-         * Its absence if thus a fatal error.
+         * If the system requires TF and we cannot provide it, continue booting
+         * but disable features that cannot be provided.
          */
-        panic("No support for Trusted Foundations, stopping...\n");
+        pr_err("No support for Trusted Foundations, continuing in degraded mode.\n");
+        pr_err("Secondary processors as well as CPU PM will be disabled.\n");
+        setup_max_cpus = 0;
+        cpu_idle_poll_ctrl(true);
 }
 
 static inline void of_register_trusted_foundations(void)
@@ -59,7 +64,7 @@ static inline void of_register_trusted_foundations(void)
          * If we find the target should enable TF but does not support it,
          * fail as the system won't be able to do much anyway
          */
-        if (of_find_compatible_node(NULL, NULL, "tl,trusted-foundations"))
+        if (of_find_compatible_node(NULL, NULL, "tlm,trusted-foundations"))
                 register_trusted_foundations(NULL);
 }
 #endif /* CONFIG_TRUSTED_FOUNDATIONS */