On 12/20/2012 05:43 PM, Hiroshi Doyu wrote:

Hi,

This patchset adds initial support for the NVIDIA's new Tegra 114
SoC (T114) based on the ARM Cortex-A15 MP. It has the minimal support
to allow the kernel to boot up into shell console. This can be used as
a basis for adding other device drivers for this SoC. Currently there
are 2 evaluation boards available, "Dalmore" and "Pluto".

This patchset is against Stephen Warren's linux-next_common branch:

  git://nv-tegra.nvidia.com/user/swarren/linux-2.6 linux-next_common

For those who want to try:

  $ make ARCH=arm tegra_defconfig
  $ scripts/config -e ARCH_TEGRA_114_SOC -d DRM -d SUSPEND \
    	-d PM_RUNTIME -d CPU_FREQ -d CPU_IDLE
  $ make ARCH=arm menuconfig # if needed to configure more

I think we also need to enable:

CONFIG_ARM_APPENDED_DTB
CONFIG_ARM_ATAG_DTB_COMPAT

because currently we append the dtb to the kernel image(will not do this
after u-boot supports dalmore and we can load the dtb in u-boot cmd), so
we need to make kernel being aware of this.

My experience is after I enabled these 2 configs, kernel starts up normally.

Mark

  $ make ARCH=arm all -j9

Verified that this single image booted up with "Dalmore(T114)",
"Pluto(T114)" and "Cardhu(T30)". For "Cardhu(T30)" with this single
image, SPI driver doesn't seem to afford the above configuration , it
hangs at boot-up. With SPI disabled, it's ok.


Hiroshi Doyu (9):
  ARM: tegra: fuse: Add chipid TEGRA114 0x35
  HACK: ARM: tegra: Use CLK_IGNORE_UNUSED for Tegra 114 SoC
  ARM: tegra: # of CPU cores detection w/ & w/o HAVE_ARM_SCU
  clocksource: tegra: Reorganize funcs by clock functionarities
  clocksource: tegra: Enable ARM arch_timer with TSC
  ARM: dt: tegra114: Add new SoC base, Tegra 114 SoC
  ARM: dt: tegra114: Add new board, Dalmore
  ARM: dt: tegra114: Add new board, Pluto
  ARM: tegra: Add initial support for Tegra 114 SoC.

 .../bindings/arm/tegra/nvidia,tegra114-tsc.txt     |   11 +
 arch/arm/boot/dts/Makefile                         |    4 +-
 arch/arm/boot/dts/tegra114-dalmore.dts             |   21 ++
 arch/arm/boot/dts/tegra114-pluto.dts               |   21 ++
 arch/arm/boot/dts/tegra114.dtsi                    |   89 ++++++++
 arch/arm/mach-tegra/Kconfig                        |   10 +
 arch/arm/mach-tegra/Makefile                       |    1 +
 arch/arm/mach-tegra/board-dt-tegra114.c            |   48 +++++
 arch/arm/mach-tegra/common.c                       |    1 +
 arch/arm/mach-tegra/fuse.h                         |    1 +
 arch/arm/mach-tegra/platsmp.c                      |   31 ++-
 arch/arm/mach-tegra/tegra30_clocks_data.c          |    2 +
 drivers/clocksource/tegra20_timer.c                |  222 +++++++++++++-------
 13 files changed, 384 insertions(+), 78 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/arm/tegra/nvidia,tegra114-tsc.txt
 create mode 100644 arch/arm/boot/dts/tegra114-dalmore.dts
 create mode 100644 arch/arm/boot/dts/tegra114-pluto.dts
 create mode 100644 arch/arm/boot/dts/tegra114.dtsi
 create mode 100644 arch/arm/mach-tegra/board-dt-tegra114.c