[U-Boot] [PATCH 00/20] x86: Add CPU uclass and multi-core support for Minnowboard MAX

[Simon Glass]

This series adds a new CPU uclass which is intended to be useful on any
architecture. So far it has a very simple interface and a command to show
CPU details.

This series also introduces multi-core init for x86. It is implemented and
enabled on Minnowboard MAX, a single/dual-core Atom board. A CPU driver is
implemented for generic x86 and Baytrail. The Simple Firmware Interface is
used to provide these details to the kernel, since ACPI is not yet available.

With these changes Minnowboard MAX can boot into Linux with both cores
enabled.

This series is available at u-boot-x86 branch 'cpu-working'.


Simon Glass (20):
  Fix comment nits in board_f.c
  dm: core: Add a function to bind a driver for a device tree node
  x86: Remove unwanted MMC debugging
  x86: Disable -Werror
  Move display_options functions to their own header
  Add print_freq() to display frequencies nicely
  x86: Add support for the Simple Firmware Interface (SFI)
  dm: Implement a CPU uclass
  Add a 'cpu' command to print CPU information
  x86: Add atomic operations
  x86: Add defines for fixed MTRRs
  x86: Add an mfence macro
  x86: Store the GDT pointer in global_data
  x86: Provide access to the IDT
  x86: Add multi-processor init
  x86: Add functions to set and clear bits on MSRs
  x86: Allow CPUs to be set up after relocation
  x86: Add a CPU driver for baytrail
  x86: Tidy up the LAPIC init code
  x86: Enable multi-core init for Minnowboard MAX

 arch/x86/Kconfig                         |  53 ++++
 arch/x86/cpu/Makefile                    |   2 +
 arch/x86/cpu/baytrail/Makefile           |   1 +
 arch/x86/cpu/baytrail/cpu.c              | 206 +++++++++++++
 arch/x86/cpu/baytrail/valleyview.c       |   1 -
 arch/x86/cpu/config.mk                   |   2 +-
 arch/x86/cpu/cpu.c                       |  38 +++
 arch/x86/cpu/interrupts.c                |   5 +
 arch/x86/cpu/ivybridge/model_206ax.c     |   4 +-
 arch/x86/cpu/lapic.c                     |  20 +-
 arch/x86/cpu/mp_init.c                   | 507 +++++++++++++++++++++++++++++++
 arch/x86/cpu/sipi.S                      | 217 +++++++++++++
 arch/x86/dts/minnowmax.dts               |  20 ++
 arch/x86/include/asm/arch-baytrail/msr.h |  30 ++
 arch/x86/include/asm/atomic.h            | 115 +++++++
 arch/x86/include/asm/cpu.h               |  19 ++
 arch/x86/include/asm/global_data.h       |   1 +
 arch/x86/include/asm/interrupt.h         |   2 +
 arch/x86/include/asm/lapic.h             |   7 -
 arch/x86/include/asm/mp.h                |  94 ++++++
 arch/x86/include/asm/msr.h               |  19 ++
 arch/x86/include/asm/mtrr.h              |  14 +
 arch/x86/include/asm/sipi.h              |  79 +++++
 arch/x86/include/asm/smm.h               |  14 +
 arch/x86/include/asm/u-boot-x86.h        |   2 +
 arch/x86/lib/Makefile                    |   1 +
 arch/x86/lib/sfi.c                       | 171 +++++++++++
 arch/x86/lib/zimage.c                    |   7 +
 common/Kconfig                           |   8 +
 common/Makefile                          |   1 +
 common/board_f.c                         |   9 +-
 common/board_r.c                         |   2 +-
 common/cmd_cpu.c                         | 113 +++++++
 configs/minnowmax_defconfig              |   4 +
 drivers/Kconfig                          |   2 +
 drivers/Makefile                         |   1 +
 drivers/core/lists.c                     |   9 +-
 drivers/cpu/Kconfig                      |   8 +
 drivers/cpu/Makefile                     |   7 +
 drivers/cpu/cpu-uclass.c                 |  61 ++++
 include/common.h                         |  16 +-
 include/cpu.h                            |  84 +++++
 include/display_options.h                |  59 ++++
 include/dm/lists.h                       |  16 +
 include/dm/uclass-id.h                   |   1 +
 include/linux/sfi.h                      | 139 +++++++++
 lib/display_options.c                    |  54 +++-
 47 files changed, 2191 insertions(+), 54 deletions(-)
 create mode 100644 arch/x86/cpu/baytrail/cpu.c
 create mode 100644 arch/x86/cpu/mp_init.c
 create mode 100644 arch/x86/cpu/sipi.S
 create mode 100644 arch/x86/include/asm/arch-baytrail/msr.h
 create mode 100644 arch/x86/include/asm/atomic.h
 create mode 100644 arch/x86/include/asm/mp.h
 create mode 100644 arch/x86/include/asm/sipi.h
 create mode 100644 arch/x86/include/asm/smm.h
 create mode 100644 arch/x86/lib/sfi.c
 create mode 100644 common/cmd_cpu.c
 create mode 100644 drivers/cpu/Kconfig
 create mode 100644 drivers/cpu/Makefile
 create mode 100644 drivers/cpu/cpu-uclass.c
 create mode 100644 include/cpu.h
 create mode 100644 include/display_options.h
 create mode 100644 include/linux/sfi.h

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2.2.0.rc0.207.ga3a616c