[GIT PULL] Renesas ARM Based SoC Updates for v4.15
Simon Horman
horms+renesas at verge.net.au
Mon Sep 25 00:54:43 PDT 2017
Hi Olof, Hi Kevin, Hi Arnd,
Please consider these Renesas ARM based SoC updates for v4.15.
The following changes since commit 2bd6bf03f4c1c59381d62c61d03f6cc3fe71f66e:
Linux 4.14-rc1 (2017-09-16 15:47:51 -0700)
are available in the git repository at:
https://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas.git tags/renesas-soc-for-v4.15
for you to fetch changes up to 3fd45a136ff61bb54deab70fb2d534a85e40481f:
ARM: shmobile: rcar-gen2: Make sure CNTVOFF is initialized on CA7/15 (2017-09-18 08:10:44 +0200)
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Renesas ARM Based SoC Updates for v4.15
* Prepare to enable SMP on R-Car E2 (r8a7794).
Geert Uytterhoeven says:
"The main hurdle here is that R-Car Gen2 boot loaders do not initialize
the arch_timer CNTVOFF register, which thus needs workarounds on Linux.
- The first patch adds a definition for MON_MODE, as suggested by Marc
Zyngier,
- The second patch makes sure CNTVOFF is initialized for boot and
secondary Cortex-A15 and Cortex-A7 CPU cores, like is already done for
the boot Cortex-A7 CPU core. Without this, the ARM arch timer does
not work on secondary CPU cores."
A follow-up patch to enable SMP in DT on R-Car E2 (r8a7794) is currently
deferred unto v4.16 as it depends on the above.
* Enable low-level debugging support for RZ/G1E (r8a7745).
Fabrizio Castro says, "RZ/G1E uses SCIF4 for the debug console."
----------------------------------------------------------------
Fabrizio Castro (1):
ARM: debug-ll: Add support for r8a7745
Geert Uytterhoeven (2):
ARM: Add definition for monitor mode
ARM: shmobile: rcar-gen2: Make sure CNTVOFF is initialized on CA7/15
arch/arm/Kconfig.debug | 10 +++++++++
arch/arm/include/uapi/asm/ptrace.h | 1 +
arch/arm/mach-shmobile/Makefile | 1 +
arch/arm/mach-shmobile/common.h | 2 ++
arch/arm/mach-shmobile/headsmp-apmu.S | 37 ++++++++++++++++++++++++++++++++
arch/arm/mach-shmobile/platsmp-apmu.c | 2 +-
arch/arm/mach-shmobile/setup-rcar-gen2.c | 20 ++---------------
7 files changed, 54 insertions(+), 19 deletions(-)
create mode 100644 arch/arm/mach-shmobile/headsmp-apmu.S
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