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The Keystone 2 66AK2E SoC has one TMS320C66x DSP Core Subsystem
(C66x CorePac), with a 1.4 GHz C66x Fixed or Floating-Point DSP
Core, and 32 KB of L1P & L1D SRAMs and a 1 MB L2 SRAM. Add the
DT node for this DSP processor sub-system. The processor does
not have a MMU, and uses various IPC Generation registers and
shared memory for inter-processor communication. The alias with
a stem 'rproc' has also been added for the DSP, it provides a
fixed remoteproc id for the DSP processor.
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Sam Nelson <sam.nelson@ti.com>
Signed-off-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org>
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The Power Sleep Controller (PSC) module contains specific
memory-mapped registers that can be used to perform reset
management using specific bits for the DSPs available on the
SoC. The PSC is defined using a syscon node, and the reset
functionality is defined using a child syscon reset controller
node.
Add this syscon reset controller node as well as the reset
control data for the resets it supports for the 66AK2E SoCs.
Signed-off-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org>
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The Keystone 2 boot monitor uses 32 KB of the MSM RAM @ 0x0c1f0000
on 66AK2E SoCs, so add a reserved child node for the same.
This address is aligned to the values used within the latest boot
monitor firmware [1] as of commit cf8b431e8b3b ("soc: Move load
address to end of MSMC").
[1] git://git.ti.com/processor-firmware/ks2-boot-monitor.git
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org>
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Add the RAM managed by the Multicire Shared Memory Controller (MSMC)
as a mmio-sram node. The 66AK2E SoCs have 2 MB of such memory. Any
specific MSM memory range needed by a software module ought to be
reserved using an appropriate child node.
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org>
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The USB OTG mode is not supported by Kestone 2 devices, as result, the
USB devices enumeration and detection will not work properly when
kernel is built with CONFIG_USB_DWC3_DUAL_ROLE=y (default for multi
platform build):
- it's required to load gadget drivers manually to make host mode
work and this confuses current Keystone 2 users
- device mode is not working, because port can't detect and switch to
peripheral/host mode dynamically.
Hence, specify usb mode explicitly in DT: usb0 = "host" for all KS2
devices and usb1 = "peripheral" for K2E.
Cc: Sekhar Nori <nsekhar@ti.com>
Cc: Roger Quadros <rogerq@ti.com>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org>
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Now that Keystone PCIe controller supports error interrupt handling
add interrupt property to PCI controller DT bindings to enable
error interrupt handling.
Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org>
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The PCI DT bindings contain a bogus entry for IO space which is not
supported on Keystone. The current bogus entry has an invalid size
and throws following error during boot.
[0.420713] keystone-pcie 21021000.pcie: error -22: failed to map
resource [io 0x0000-0x400000003fff]
So remove it from the dts. While at it also add a bus-range
value that eliminates following log at boot up.
[0.420659] No bus range found for /soc/pcie@21020000, using [bus 00-ff]
Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org>
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As reported in [1], rename the k2* dts files to keystone-* files
this will force consistency throughout.
Script for the same (and hand modified for Makefile and MAINTAINERS
files):
for i in arch/arm/boot/dts/k2*
do
b=`basename $i`;
git mv $i arch/arm/boot/dts/keystone-$b;
sed -i -e "s/$b/keystone-$b/g" arch/arm/boot/dts/*[si]
done
NOTE: bootloaders that depend on older dtb names will need to be
updated as well.
[1] http://marc.info/?l=linux-arm-kernel&m=145637407804754&w=2
Reported-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org>
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Suman Anna
Grygorii Strashko
Murali Karicheri
Nishanth Menon