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
  ...

1 files changed, 11 insertions, 21 deletions

diff --git a/arch/arm/mach-ux500/cache-l2x0.c b/arch/arm/mach-ux500/cache-l2x0.c
index 264f894c0e3d..842ebedbdd1c 100644
--- a/arch/arm/mach-ux500/cache-l2x0.c
+++ b/arch/arm/mach-ux500/cache-l2x0.c
@@ -35,10 +35,16 @@ static int __init ux500_l2x0_unlock(void)
 	return 0;
 }
 
-static int __init ux500_l2x0_init(void)
+static void ux500_l2c310_write_sec(unsigned long val, unsigned reg)
 {
-	u32 aux_val = 0x3e000000;
+	/*
+	 * We can't write to secure registers as we are in non-secure
+	 * mode, until we have some SMI service available.
+	 */
+}
 
+static int __init ux500_l2x0_init(void)
+{
 	if (cpu_is_u8500_family() || cpu_is_ux540_family())
 		l2x0_base = __io_address(U8500_L2CC_BASE);
 	else
@@ -48,28 +54,12 @@ static int __init ux500_l2x0_init(void)
 	/* Unlock before init */
 	ux500_l2x0_unlock();
 
-	/* DBx540's L2 has 128KB way size */
-	if (cpu_is_ux540_family())
-		/* 128KB way size */
-		aux_val |= (0x4 << L2X0_AUX_CTRL_WAY_SIZE_SHIFT);
-	else
-		/* 64KB way size */
-		aux_val |= (0x3 << L2X0_AUX_CTRL_WAY_SIZE_SHIFT);
+	outer_cache.write_sec = ux500_l2c310_write_sec;
 
-	/* 64KB way size, 8 way associativity, force WA */
 	if (of_have_populated_dt())
-		l2x0_of_init(aux_val, 0xc0000fff);
+		l2x0_of_init(0, ~0);
 	else
-		l2x0_init(l2x0_base, aux_val, 0xc0000fff);
-
-	/*
-	 * We can't disable l2 as we are in non secure mode, currently
-	 * this seems be called only during kexec path. So let's
-	 * override outer.disable with nasty assignment until we have
-	 * some SMI service available.
-	 */
-	outer_cache.disable = NULL;
-	outer_cache.set_debug = NULL;
+		l2x0_init(l2x0_base, 0, ~0);
 
 	return 0;
 }