Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm into next

Pull ARM updates from Russell King:

 - Major clean-up of the L2 cache support code.  The existing mess was
   becoming rather unmaintainable through all the additions that others
   have done over time.  This turns it into a much nicer structure, and
   implements a few performance improvements as well.

 - Clean up some of the CP15 control register tweaks for alignment
   support, moving some code and data into alignment.c

 - DMA properties for ARM, from Santosh and reviewed by DT people.  This
   adds DT properties to specify bus translations we can't discover
   automatically, and to indicate whether devices are coherent.

 - Hibernation support for ARM

 - Make ftrace work with read-only text in modules

 - add suspend support for PJ4B CPUs

 - rework interrupt masking for undefined instruction handling, which
   allows us to enable interrupts earlier in the handling of these
   exceptions.

 - support for big endian page tables

 - fix stacktrace support to exclude stacktrace functions from the
   trace, and add save_stack_trace_regs() implementation so that kprobes
   can record stack traces.

 - Add support for the Cortex-A17 CPU.

 - Remove last vestiges of ARM710 support.

 - Removal of ARM "meminfo" structure, finally converting us solely to
   memblock to handle the early memory initialisation.

* 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: (142 commits)
  ARM: ensure C page table setup code follows assembly code (part II)
  ARM: ensure C page table setup code follows assembly code
  ARM: consolidate last remaining open-coded alignment trap enable
  ARM: remove global cr_no_alignment
  ARM: remove CPU_CP15 conditional from alignment.c
  ARM: remove unused adjust_cr() function
  ARM: move "noalign" command line option to alignment.c
  ARM: provide common method to clear bits in CPU control register
  ARM: 8025/1: Get rid of meminfo
  ARM: 8060/1: mm: allow sub-architectures to override PCI I/O memory type
  ARM: 8066/1: correction for ARM patch 8031/2
  ARM: 8049/1: ftrace/add save_stack_trace_regs() implementation
  ARM: 8065/1: remove last use of CONFIG_CPU_ARM710
  ARM: 8062/1: Modify ldrt fixup handler to re-execute the userspace instruction
  ARM: 8047/1: rwsem: use asm-generic rwsem implementation
  ARM: l2c: trial at enabling some Cortex-A9 optimisations
  ARM: l2c: add warnings for stuff modifying aux_ctrl register values
  ARM: l2c: print a warning with L2C-310 caches if the cache size is modified
  ARM: l2c: remove old .set_debug method
  ARM: l2c: kill L2X0_AUX_CTRL_MASK before anyone else makes use of this
  ...

4 files changed, 6 insertions, 70 deletions

diff --git a/arch/arm/mach-tegra/pm.h b/arch/arm/mach-tegra/pm.h
index 6e92a7c2ecbd..f4a89698e5b0 100644
--- a/arch/arm/mach-tegra/pm.h
+++ b/arch/arm/mach-tegra/pm.h
@@ -35,8 +35,6 @@ void tegra20_sleep_core_init(void);
 void tegra30_lp1_iram_hook(void);
 void tegra30_sleep_core_init(void);
 
-extern unsigned long l2x0_saved_regs_addr;
-
 void tegra_clear_cpu_in_lp2(void);
 bool tegra_set_cpu_in_lp2(void);
 
diff --git a/arch/arm/mach-tegra/reset-handler.S b/arch/arm/mach-tegra/reset-handler.S
index 8c1ba4fea384..578d4d1ad648 100644
--- a/arch/arm/mach-tegra/reset-handler.S
+++ b/arch/arm/mach-tegra/reset-handler.S
@@ -19,7 +19,6 @@
 
 #include <asm/cache.h>
 #include <asm/asm-offsets.h>
-#include <asm/hardware/cache-l2x0.h>
 
 #include "flowctrl.h"
 #include "fuse.h"
@@ -78,8 +77,10 @@ ENTRY(tegra_resume)
         str     r1, [r0]
 #endif
 
+#ifdef CONFIG_CACHE_L2X0
         /* L2 cache resume & re-enable */
-        l2_cache_resume r0, r1, r2, l2x0_saved_regs_addr
+        bl      l2c310_early_resume
+#endif
 end_ca9_scu_l2_resume:
         mov32   r9, 0xc0f
         cmp     r8, r9
@@ -89,12 +90,6 @@ end_ca9_scu_l2_resume:
 ENDPROC(tegra_resume)
 #endif
 
-#ifdef CONFIG_CACHE_L2X0
-        .globl  l2x0_saved_regs_addr
-l2x0_saved_regs_addr:
-        .long   0
-#endif
-
         .align L1_CACHE_SHIFT
 ENTRY(__tegra_cpu_reset_handler_start)
 
diff --git a/arch/arm/mach-tegra/sleep.h b/arch/arm/mach-tegra/sleep.h
index a4edbb3abd3d..339fe42cd6fb 100644
--- a/arch/arm/mach-tegra/sleep.h
+++ b/arch/arm/mach-tegra/sleep.h
@@ -120,37 +120,6 @@
         mov     \tmp1, \tmp1, lsr #8
 .endm
 
-/* Macro to resume & re-enable L2 cache */
-#ifndef L2X0_CTRL_EN
-#define L2X0_CTRL_EN    1
-#endif
-
-#ifdef CONFIG_CACHE_L2X0
-.macro l2_cache_resume, tmp1, tmp2, tmp3, phys_l2x0_saved_regs
-        W(adr)  \tmp1, \phys_l2x0_saved_regs
-        ldr     \tmp1, [\tmp1]
-        ldr     \tmp2, [\tmp1, #L2X0_R_PHY_BASE]
-        ldr     \tmp3, [\tmp2, #L2X0_CTRL]
-        tst     \tmp3, #L2X0_CTRL_EN
-        bne     exit_l2_resume
-        ldr     \tmp3, [\tmp1, #L2X0_R_TAG_LATENCY]
-        str     \tmp3, [\tmp2, #L2X0_TAG_LATENCY_CTRL]
-        ldr     \tmp3, [\tmp1, #L2X0_R_DATA_LATENCY]
-        str     \tmp3, [\tmp2, #L2X0_DATA_LATENCY_CTRL]
-        ldr     \tmp3, [\tmp1, #L2X0_R_PREFETCH_CTRL]
-        str     \tmp3, [\tmp2, #L2X0_PREFETCH_CTRL]
-        ldr     \tmp3, [\tmp1, #L2X0_R_PWR_CTRL]
-        str     \tmp3, [\tmp2, #L2X0_POWER_CTRL]
-        ldr     \tmp3, [\tmp1, #L2X0_R_AUX_CTRL]
-        str     \tmp3, [\tmp2, #L2X0_AUX_CTRL]
-        mov     \tmp3, #L2X0_CTRL_EN
-        str     \tmp3, [\tmp2, #L2X0_CTRL]
-exit_l2_resume:
-.endm
-#else /* CONFIG_CACHE_L2X0 */
-.macro l2_cache_resume, tmp1, tmp2, tmp3, phys_l2x0_saved_regs
-.endm
-#endif /* CONFIG_CACHE_L2X0 */
 #else
 void tegra_pen_lock(void);
 void tegra_pen_unlock(void);
diff --git a/arch/arm/mach-tegra/tegra.c b/arch/arm/mach-tegra/tegra.c
index 6191603379e1..15ac9fcc96b1 100644
--- a/arch/arm/mach-tegra/tegra.c
+++ b/arch/arm/mach-tegra/tegra.c
@@ -70,40 +70,12 @@ u32 tegra_uart_config[3] = {
         0,
 };
 
-static void __init tegra_init_cache(void)
-{
-#ifdef CONFIG_CACHE_L2X0
-        static const struct of_device_id pl310_ids[] __initconst = {
-                { .compatible = "arm,pl310-cache",  },
-                {}
-        };
-
-        struct device_node *np;
-        int ret;
-        void __iomem *p = IO_ADDRESS(TEGRA_ARM_PERIF_BASE) + 0x3000;
-        u32 aux_ctrl, cache_type;
-
-        np = of_find_matching_node(NULL, pl310_ids);
-        if (!np)
-                return;
-
-        cache_type = readl(p + L2X0_CACHE_TYPE);
-        aux_ctrl = (cache_type & 0x700) << (17-8);
-        aux_ctrl |= 0x7C400001;
-
-        ret = l2x0_of_init(aux_ctrl, 0x8200c3fe);
-        if (!ret)
-                l2x0_saved_regs_addr = virt_to_phys(&l2x0_saved_regs);
-#endif
-}
-
 static void __init tegra_init_early(void)
 {
         of_register_trusted_foundations();
         tegra_apb_io_init();
         tegra_init_fuse();
         tegra_cpu_reset_handler_init();
-        tegra_init_cache();
         tegra_powergate_init();
         tegra_hotplug_init();
 }
@@ -191,8 +163,10 @@ static const char * const tegra_dt_board_compat[] = {
 };
 
 DT_MACHINE_START(TEGRA_DT, "NVIDIA Tegra SoC (Flattened Device Tree)")
-        .map_io         = tegra_map_common_io,
+        .l2c_aux_val    = 0x3c400001,
+        .l2c_aux_mask   = 0xc20fc3fe,
         .smp            = smp_ops(tegra_smp_ops),
+        .map_io         = tegra_map_common_io,
         .init_early     = tegra_init_early,
         .init_irq       = tegra_dt_init_irq,
         .init_machine   = tegra_dt_init,