Merge branches 'devel-stable', 'entry', 'fixes', 'mach-types', 'misc' and 'smp-hotplu...

[karo-tx-linux.git] / arch / arm / kernel / setup.c

diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 3f6cbb2e3edae392f2b73520b89b6ee3b19e8437..728007c4a2b7eaf18e038d93a8075699d7a479dc 100644 (file)
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -56,7 +56,6 @@
 #include <asm/virt.h>
 
 #include "atags.h"
-#include "tcm.h"
 
 
 #if defined(CONFIG_FPE_NWFPE) || defined(CONFIG_FPE_FASTFPE)
@@ -291,10 +290,10 @@ static int cpu_has_aliasing_icache(unsigned int arch)
 
 static void __init cacheid_init(void)
 {
-       unsigned int cachetype = read_cpuid_cachetype();
        unsigned int arch = cpu_architecture();
 
        if (arch >= CPU_ARCH_ARMv6) {
+               unsigned int cachetype = read_cpuid_cachetype();
                if ((cachetype & (7 << 29)) == 4 << 29) {
                        /* ARMv7 register format */
                        arch = CPU_ARCH_ARMv7;
@@ -353,6 +352,23 @@ void __init early_print(const char *str, ...)
        printk("%s", buf);
 }
 
+static void __init cpuid_init_hwcaps(void)
+{
+       unsigned int divide_instrs;
+
+       if (cpu_architecture() < CPU_ARCH_ARMv7)
+               return;
+
+       divide_instrs = (read_cpuid_ext(CPUID_EXT_ISAR0) & 0x0f000000) >> 24;
+
+       switch (divide_instrs) {
+       case 2:
+               elf_hwcap |= HWCAP_IDIVA;
+       case 1:
+               elf_hwcap |= HWCAP_IDIVT;
+       }
+}
+
 static void __init feat_v6_fixup(void)
 {
        int id = read_cpuid_id();
@@ -373,7 +389,7 @@ static void __init feat_v6_fixup(void)
  *
  * cpu_init sets up the per-CPU stacks.
  */
-void cpu_init(void)
+void notrace cpu_init(void)
 {
        unsigned int cpu = smp_processor_id();
        struct stack *stk = &stacks[cpu];
@@ -483,8 +499,11 @@ static void __init setup_processor(void)
        snprintf(elf_platform, ELF_PLATFORM_SIZE, "%s%c",
                 list->elf_name, ENDIANNESS);
        elf_hwcap = list->elf_hwcap;
+
+       cpuid_init_hwcaps();
+
 #ifndef CONFIG_ARM_THUMB
-       elf_hwcap &= ~HWCAP_THUMB;
+       elf_hwcap &= ~(HWCAP_THUMB | HWCAP_IDIVT);
 #endif
 
        feat_v6_fixup();
@@ -524,7 +543,7 @@ int __init arm_add_memory(phys_addr_t start, phys_addr_t size)
        size -= start & ~PAGE_MASK;
        bank->start = PAGE_ALIGN(start);
 
-#ifndef CONFIG_LPAE
+#ifndef CONFIG_ARM_LPAE
        if (bank->start + size < bank->start) {
                printk(KERN_CRIT "Truncating memory at 0x%08llx to fit in "
                        "32-bit physical address space\n", (long long)start);
@@ -778,8 +797,6 @@ void __init setup_arch(char **cmdline_p)
 
        reserve_crashkernel();
 
-       tcm_init();
-
 #ifdef CONFIG_MULTI_IRQ_HANDLER
        handle_arch_irq = mdesc->handle_irq;
 #endif