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| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2016-01-15 22:11:07 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-01-19 08:39:56 +0100 |
| commit | 3fda5bb420e79b357328b358409e4c547d8f0a18 (patch) | |
| tree | 2d58cbaee531e399247d3121e412437c0499dfd0 | |
| parent | 98229aa36caa9c769b13565523de9b813013c703 (diff) | |
| download | linux-3fda5bb420e79b357328b358409e4c547d8f0a18.tar.gz linux-3fda5bb420e79b357328b358409e4c547d8f0a18.tar.bz2 linux-3fda5bb420e79b357328b358409e4c547d8f0a18.zip | |
x86/platform/intel-mid: Enable 64-bit build
Intel Tangier SoC is known to have 64-bit dual core CPU. Enable
64-bit build for it.
The kernel has been tested on Intel Edison board:
Linux buildroot 4.4.0-next-20160115+ #25 SMP Fri Jan 15 22:03:19 EET 2016 x86_64 GNU/Linux
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 74
model name : Genuine Intel(R) CPU 4000 @ 500MHz
stepping : 8
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mika Westerberg <mika.westerberg@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1452888668-147116-1-git-send-email-andriy.shevchenko@linux.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
| -rw-r--r-- | arch/x86/Kconfig | 3 | ||||
| -rw-r--r-- | arch/x86/kernel/head64.c | 8 |
2 files changed, 9 insertions, 2 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 258965d56beb..07459a6b417d 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -495,11 +495,10 @@ config X86_INTEL_CE config X86_INTEL_MID bool "Intel MID platform support" - depends on X86_32 depends on X86_EXTENDED_PLATFORM depends on X86_PLATFORM_DEVICES depends on PCI - depends on PCI_GOANY + depends on X86_64 || (PCI_GOANY && X86_32) depends on X86_IO_APIC select SFI select I2C diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c index f129a9af6357..2c0f3407bd1f 100644 --- a/arch/x86/kernel/head64.c +++ b/arch/x86/kernel/head64.c @@ -192,5 +192,13 @@ void __init x86_64_start_reservations(char *real_mode_data) reserve_ebda_region(); + switch (boot_params.hdr.hardware_subarch) { + case X86_SUBARCH_INTEL_MID: + x86_intel_mid_early_setup(); + break; + default: + break; + } + start_kernel(); } |