linux.git/arch/mips/generic, branch v4.19.259

MIPS: fix allmodconfig build with latest mkimage

2022-05-18T07:42:50+00:00

With the latest mkimage from U-Boot 2021.04+ the allmodconfig build
fails. 822564cd3aa1 ("MIPS: generic: Update node names to avoid unit
addresses") was applied for similar build failure, but it was not
applied to 'arch/mips/generic/board-ocelot_pcb123.its.S' as that was
removed from upstream when the patch was applied.

Fixes: 822564cd3aa1 ("MIPS: generic: Update node names to avoid unit addresses")
Cc: Nathan Chancellor 
Signed-off-by: Sudip Mukherjee 
Reviewed-by: Nathan Chancellor 
Signed-off-by: Greg Kroah-Hartman

MIPS: generic/yamon-dt: fix uninitialized variable error

2021-11-26T10:36:22+00:00

[ Upstream commit 255e51da15baed47531beefd02f222e4dc01f1c1 ]

In the case where fw_getenv returns an error when fetching values
for ememsizea and memsize then variable phys_memsize is not assigned
a variable and will be uninitialized on a zero check of phys_memsize.
Fix this by initializing phys_memsize to zero.

Cleans up cppcheck error:
arch/mips/generic/yamon-dt.c:100:7: error: Uninitialized variable: phys_memsize [uninitvar]

Fixes: f41d2430bbd6 ("MIPS: generic/yamon-dt: Support > 256MB of RAM")
Signed-off-by: Colin Ian King 
Signed-off-by: Thomas Bogendoerfer 
Signed-off-by: Sasha Levin

MIPS: generic: Update node names to avoid unit addresses

2021-06-30T12:48:29+00:00

commit e607ff630c6053ecc67502677c0e50053d7892d4 upstream.

With the latest mkimage from U-Boot 2021.04, the generic defconfigs no
longer build, failing with:

/usr/bin/mkimage: verify_header failed for FIT Image support with exit code 1

This is expected after the linked U-Boot commits because '@' is
forbidden in the node names due to the way that libfdt treats nodes with
the same prefix but different unit addresses.

Switch the '@' in the node name to '-'. Drop the unit addresses from the
hash and kernel child nodes because there is only one node so they do
not need to have a number to differentiate them.

Cc: stable@vger.kernel.org
Link: https://source.denx.de/u-boot/u-boot/-/commit/79af75f7776fc20b0d7eb6afe1e27c00fdb4b9b4
Link: https://source.denx.de/u-boot/u-boot/-/commit/3f04db891a353f4b127ed57279279f851c6b4917
Suggested-by: Simon Glass 
Signed-off-by: Nathan Chancellor 
Reviewed-by: Tom Rini 
Signed-off-by: Thomas Bogendoerfer 
[nathan: Backport to 4.19, only apply to .its.S files that exist]
Signed-off-by: Nathan Chancellor 
Signed-off-by: Greg Kroah-Hartman

MIPS: Remove obsolete MIPS checks for DST node "chosen@0"

2018-08-06T16:50:33+00:00

As there is precious little left in any DTS files referring to the
node "/chosen@0" as opposed to "/chosen", remove the two checks for
the former node name.

[paul.burton@mips.com:
  The modified yamon-dt code only operates on
  arch/mips/boot/dts/mti/sead3.dts right now, and that uses chosen
  rather than chosen@0 anyway, so this should have no behavioural
  effect.]

Signed-off-by: Robert P. J. Day 
Signed-off-by: Paul Burton 
Patchwork: https://patchwork.linux-mips.org/patch/20131/
Cc: linux-mips@linux-mips.org

MIPS: generic: fix missing of_node_put()

2018-07-28T02:48:57+00:00

of_find_compatible_node() returns a device_node pointer with refcount
incremented and must be decremented explicitly.
 As this code is using the result only to check presence of the interrupt
controller (!NULL) but not actually using the result otherwise the
refcount can be decremented here immediately again.

Signed-off-by: Nicholas Mc Guire 
Signed-off-by: Paul Burton 
Patchwork: https://patchwork.linux-mips.org/patch/19820/
Cc: Ralf Baechle 
Cc: James Hogan 
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org

mips: mscc: build FIT image for Ocelot

2018-07-25T00:42:19+00:00

Ocelot now has a u-boot port, allow building FIT images instead of relying
on the legacy detection and builtin DTB.

Signed-off-by: Alexandre Belloni 
Reviewed-by: James Hogan 
Signed-off-by: Paul Burton 
Patchwork: https://patchwork.linux-mips.org/patch/19632/
Cc: Ralf Baechle 
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org

MIPS: generic: remove unnecessary of_platform_populate call

2018-06-24T16:27:27+00:00

The DT core will call of_platform_populate, so it is not necessary for
arch specific code to call it unless there are custom match entries,
auxdata or parent device. Neither of those apply here, so remove the call.

Cc: Paul Burton 
Cc: Ralf Baechle 
Cc: James Hogan 
Cc: linux-mips@linux-mips.org
Signed-off-by: Rob Herring 
Patchwork: https://patchwork.linux-mips.org/patch/19591/
Signed-off-by: Paul Burton 
Cc: linux-kernel@vger.kernel.org

MIPS: xilfpga: Actually include FDT in fitImage

2018-05-14T22:54:25+00:00

Commit b35565bb16a5 ("MIPS: generic: Add support for MIPSfpga") added
and its.S file for xilfpga but forgot to add it to
arch/mips/generic/Platform so it is never used.

Fixes: b35565bb16a5 ("MIPS: generic: Add support for MIPSfpga")
Signed-off-by: Alexandre Belloni 
Cc: Ralf Baechle 
Cc: linux-mips@linux-mips.org
Cc:  # 4.15+
Patchwork: https://patchwork.linux-mips.org/patch/19245/
Signed-off-by: James Hogan

MIPS: generic: Add support for Microsemi Ocelot

2018-03-21T23:33:10+00:00

Introduce support for the MIPS based Microsemi Ocelot SoCs.

Signed-off-by: Alexandre Belloni 
Cc: Ralf Baechle 
Cc: Allan Nielsen 
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/18858/
[jhogan@kernel.org: update ocelot_defconfig specification]
Signed-off-by: James Hogan

MIPS: Generic: Support GIC in EIC mode

2018-02-05T14:36:03+00:00

The GIC supports running in External Interrupt Controller (EIC) mode,
and will signal this via cpu_has_veic if enabled in hardware. Currently
the generic kernel will panic if cpu_has_veic is set - but the GIC can
legitimately set this flag if either configured to boot in EIC mode, or
if the GIC driver enables this mode. Make the kernel not panic in this
case, and instead just check if the GIC is present. If so, use it's CPU
local interrupt routing functions. If an EIC is present, but it is not
the GIC, then the kernel does not know how to get the VIRQ for the CPU
local interrupts and should panic. Support for alternative EICs being
present is needed here for the generic kernel to support them.

Suggested-by: Paul Burton 
Signed-off-by: Matt Redfearn 
Cc: Ralf Baechle 
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/18191/
Signed-off-by: James Hogan