linux-stable.git/arch/xtensa/boot, branch linux-5.4.y

xtensa: boot/lib: fix function prototypes

2023-10-10T19:46:39+00:00

[ Upstream commit f54d02c8f2cc4b46ba2a3bd8252a6750453b6f2b ]

Add function prototype for gunzip() to the boot library code and make
exit() and zalloc() static.

arch/xtensa/boot/lib/zmem.c:8:6: warning: no previous prototype for 'exit' [-Wmissing-prototypes]
    8 | void exit (void)
arch/xtensa/boot/lib/zmem.c:13:7: warning: no previous prototype for 'zalloc' [-Wmissing-prototypes]
   13 | void *zalloc(unsigned size)
arch/xtensa/boot/lib/zmem.c:35:6: warning: no previous prototype for 'gunzip' [-Wmissing-prototypes]
   35 | void gunzip (void *dst, int dstlen, unsigned char *src, int *lenp)

Fixes: 4bedea945451 ("xtensa: Architecture support for Tensilica Xtensa Part 2")
Fixes: e7d163f76665 ("xtensa: Removed local copy of zlib and fixed O= support")
Suggested-by: Randy Dunlap 
Signed-off-by: Max Filippov 
Signed-off-by: Sasha Levin

xtensa: boot: don't add include-dirs

2023-10-10T19:46:39+00:00

[ Upstream commit 54d3d7d363823782c3444ddc41bb8cf1edc80514 ]

Drop the -I options to prevent build warnings since there
is not boot/include directory:

cc1: warning: arch/xtensa/boot/include: No such file or directory [-Wmissing-include-dirs]

Fixes: 437374e9a950 ("restore arch/{ppc/xtensa}/boot cflags")
Fixes: 4bedea945451 ("xtensa: Architecture support for Tensilica Xtensa Part 2")
Signed-off-by: Randy Dunlap 
Cc: Chris Zankel 
Cc: Max Filippov 
Message-Id: <20230920052139.10570-15-rdunlap@infradead.org>
Signed-off-by: Max Filippov 
Signed-off-by: Sasha Levin

xtensa: fix DTC warning unit_address_format

2022-04-15T12:18:34+00:00

[ Upstream commit e85d29ba4b24f68e7a78cb85c55e754362eeb2de ]

DTC issues the following warnings when building xtfpga device trees:

 /soc/flash@00000000/partition@0x0: unit name should not have leading "0x"
 /soc/flash@00000000/partition@0x6000000: unit name should not have leading "0x"
 /soc/flash@00000000/partition@0x6800000: unit name should not have leading "0x"
 /soc/flash@00000000/partition@0x7fe0000: unit name should not have leading "0x"

Drop leading 0x from flash partition unit names.

Signed-off-by: Max Filippov 
Signed-off-by: Sasha Levin

xtensa: virt: fix PCI IO ports mapping

2019-10-15T21:29:53+00:00

virt device tree incorrectly uses 0xf0000000 on both sides of PCI IO
ports address space mapping. This results in incorrect port address
assignment in PCI IO BARs and subsequent crash on attempt to access
them. Use 0 as base address in PCI IO ports address space.

Signed-off-by: Max Filippov

xtensa: virt: move PCI root complex to KIO range

2019-09-02T07:09:30+00:00

Move PCI configuration space, MMIO and memory to the KIO range to free
vmalloc area and use static TLB to access them. Move MMIO to the
beginning of KIO and define PCI_IOBASE as XCHAL_KIO_BYPASS_VADDR to
match it. Reduce number of supported PCI buses to 0x3f so that ECAM
window fits into first 64MB of the KIO. Reduce size of the PCI memory
window to 128MB so that it fits into KIO.

Signed-off-by: Max Filippov

Merge tag 'xtensa-20190715' of git://github.com/jcmvbkbc/linux-xtensa

2019-07-16T19:17:07+00:00

Pull Xtensa updates from Max Filippov:

 - clean up PCI support code

 - add defconfig and DTS for the 'virt' board

 - abstract 'entry' and 'retw' uses in xtensa assembly in preparation
   for XEA3/NX pipeline support

 - random small cleanups

* tag 'xtensa-20190715' of git://github.com/jcmvbkbc/linux-xtensa:
  xtensa: virt: add defconfig and DTS
  xtensa: abstract 'entry' and 'retw' in assembly code
  xtensa: One function call less in bootmem_init()
  xtensa: remove arch/xtensa/include/asm/types.h
  xtensa: use generic pcibios_set_master and pcibios_enable_device
  xtensa: drop dead PCI support code
  xtensa/PCI: Remove unused variable

xtensa: virt: add defconfig and DTS

2019-07-08T21:32:06+00:00

Add defconfig and DTS for a virt board. Defconfig enables PCIe host and
a number of virtio devices. DTS routes legacy PCI IRQs to the first four
level-triggered external IRQ lines. CPU core with edge-triggered IRQs
among the first four may need a custom DTS to work correctly.

Signed-off-by: Max Filippov

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500

2019-06-19T15:09:55+00:00

Based on 2 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation #

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 4122 file(s).

Signed-off-by: Thomas Gleixner 
Reviewed-by: Enrico Weigelt 
Reviewed-by: Kate Stewart 
Reviewed-by: Allison Randal 
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman

treewide: prefix header search paths with $(srctree)/

2019-05-18T02:49:57+00:00

Currently, the Kbuild core manipulates header search paths in a crazy
way [1].

To fix this mess, I want all Makefiles to add explicit $(srctree)/ to
the search paths in the srctree. Some Makefiles are already written in
that way, but not all. The goal of this work is to make the notation
consistent, and finally get rid of the gross hacks.

Having whitespaces after -I does not matter since commit 48f6e3cf5bc6
("kbuild: do not drop -I without parameter").

[1]: https://patchwork.kernel.org/patch/9632347/

Signed-off-by: Masahiro Yamada

xtensa: replace variant/core.h with asm/core.h

2019-05-07T00:48:55+00:00

Introduce the header arch/xtensa/include/asm/core.h that provides
definitions for XCHAL macros missing in older xtensa releases. Use this
header instead of variant/core.h

Signed-off-by: Max Filippov