ARM: keystone: Add minimal TI Keystone platform support

Texas Instruments Keystone family of multi-core devices are
based on ARM Cortex A15. Patch adds basic definitions for a
new Keystone sub-architecture in ARM.

The TCI66xxK2H Communications Infrastructure Keystone SoCs
are member of the C66x family based on TI's new KeyStone 2
multi-core SoC Architecture designed specifically for high
performance wireless and networking infrastructure applications.
The SOCs contains many subsystems like Cortex A15 ARM CorePacs,
C66XX DSP CorePacs, MSMC memory controller, Tera Net bus,
IP Network, Navigator, Hyperlink, 1G/10G Ethernet, Radio layers
and queue based communication systems.

Cc: Arnd Bergmann <arnd@arndb.de>
Cc: arm@kernel.org

Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>

1 files changed, 16 insertions, 0 deletions

diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 1d41908d5cda..62e7f95c6643 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -251,6 +251,20 @@ choice
                   Say Y here if you want kernel low-level debugging support
                   on i.MX6Q/DL.
 
+        config DEBUG_KEYSTONE_UART0
+                bool "Kernel low-level debugging on KEYSTONE2 using UART0"
+                depends on ARCH_KEYSTONE
+                help
+                  Say Y here if you want the debug print routines to direct
+                  their output to UART0 serial port on KEYSTONE2 devices.
+
+        config DEBUG_KEYSTONE_UART1
+                bool "Kernel low-level debugging on KEYSTONE2 using UART1"
+                depends on ARCH_KEYSTONE
+                help
+                  Say Y here if you want the debug print routines to direct
+                  their output to UART1 serial port on KEYSTONE2 devices.
+
         config DEBUG_MMP_UART2
                 bool "Kernel low-level debugging message via MMP UART2"
                 depends on ARCH_MMP
@@ -632,6 +646,8 @@ config DEBUG_LL_INCLUDE
                                  DEBUG_IMX51_UART || \
                                  DEBUG_IMX53_UART ||\
                                  DEBUG_IMX6Q_UART
+        default "debug/keystone.S" if DEBUG_KEYSTONE_UART0 || \
+                                      DEBUG_KEYSTONE_UART1
         default "debug/mvebu.S" if DEBUG_MVEBU_UART
         default "debug/mxs.S" if DEBUG_IMX23_UART || DEBUG_IMX28_UART
         default "debug/nomadik.S" if DEBUG_NOMADIK_UART