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6 Commits

Author SHA1 Message Date
Christophe Leroy
3f39f38ea9 soc: fsl: qe: replace qe_io{read,write}* wrappers by generic io{read,write}* 
Commit 6ac9b61786cc ("soc: fsl: qe: introduce qe_io{read,write}*
wrappers") added specific I/O accessors for qe because at that
time ioread/iowrite functions were sub-optimal on powerpc/32
compared to the architecture specific in_/out_ IO accessors.

But as ioread/iowrite accessors are now equivalent since
commit 894fa235eb4c ("powerpc: inline iomap accessors"),
use them in order to allow removal of the qe specific ones.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
 2021-04-06 15:39:39 -05:00
Rasmus Villemoes
c93c159aef soc: fsl: qe: avoid IS_ERR_VALUE in ucc_fast.c 
When building this on a 64-bit platform gcc rightly warns that the
error checking is broken (-ENOMEM stored in an u32 does not compare
greater than (unsigned long)-MAX_ERRNO). Instead, change the
ucc_fast_[tr]x_virtual_fifo_base_offset members to s32 and use an
ordinary check-for-negative. Also, this avoids treating 0 as "this
cannot have been returned from qe_muram_alloc() so don't free it".

Reviewed-by: Timur Tabi <timur@kernel.org>
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
 2019-12-09 13:54:37 -06:00
Rasmus Villemoes
77d7676a92 soc: fsl: qe: avoid ppc-specific io accessors 
In preparation for allowing to build QE support for architectures
other than PPC, replace the ppc-specific io accessors by the qe_io*
macros. Done via

$ spatch --sp-file io.cocci --in-place drivers/soc/fsl/qe/

where io.cocci is

@@
expression addr, val;
@@
- out_be32(addr, val)
+ qe_iowrite32be(val, addr)

@@
expression addr;
@@
- in_be32(addr)
+ qe_ioread32be(addr)

@@
expression addr, val;
@@
- out_be16(addr, val)
+ qe_iowrite16be(val, addr)

@@
expression addr;
@@
- in_be16(addr)
+ qe_ioread16be(addr)

@@
expression addr, val;
@@
- out_8(addr, val)
+ qe_iowrite8(val, addr)

@@
expression addr;
@@
- in_8(addr)
+ qe_ioread8(addr)

@@
expression addr, clr, set;
@@
- clrsetbits_be32(addr, clr, set)
+ qe_clrsetbits_be32(addr, clr, set)

@@
expression addr, clr, set;
@@
- clrsetbits_be16(addr, clr, set)
+ qe_clrsetbits_be16(addr, clr, set)

@@
expression addr, clr, set;
@@
- clrsetbits_8(addr, clr, set)
+ qe_clrsetbits_8(addr, clr, set)

@@
expression addr, set;
@@
- setbits32(addr, set)
+ qe_setbits_be32(addr, set)

@@
expression addr, set;
@@
- setbits16(addr, set)
+ qe_setbits_be16(addr, set)

@@
expression addr, set;
@@
- setbits8(addr, set)
+ qe_setbits_8(addr, set)

@@
expression addr, clr;
@@
- clrbits32(addr, clr)
+ qe_clrbits_be32(addr, clr)

@@
expression addr, clr;
@@
- clrbits16(addr, clr)
+ qe_clrbits_be16(addr, clr)

@@
expression addr, clr;
@@
- clrbits8(addr, clr)
+ qe_clrbits_8(addr, clr)

Reviewed-by: Timur Tabi <timur@kernel.org>
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
 2019-12-09 13:54:29 -06:00
Thomas Gleixner
2874c5fd28 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 
Based on 1 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 as published by
  the free software foundation either version 2 of the license or at
  your option any later version

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 3029 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2019-05-30 11:26:32 -07:00
Zhao Qiang
bb8b2062af fsl/qe: setup clock source for TDM mode 
Add tdm clock configuration in both qe clock system and ucc
fast controller.

Signed-off-by: Zhao Qiang <qiang.zhao@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2016-06-07 15:56:30 -07:00
Zhao Qiang
7aa1aa6ece QE: Move QE from arch/powerpc to drivers/soc 
ls1 has qe and ls1 has arm cpu.
move qe from arch/powerpc to drivers/soc/fsl
to adapt to powerpc and arm

Signed-off-by: Zhao Qiang <qiang.zhao@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
 2015-12-22 17:12:56 -06:00