There have been several attempts in the past few years to allow
building the QUICC engine drivers for platforms other than PPC. This
is yet another attempt.
Changes in v3:
- Address the performance impact on ppc from replacing out_be32 by
iowrite32be by instead introducing a qe_iowrite32be wrapper and
using that - patches 3 and 4 in this series.
- Extend the series so that both the QE core as well as ucc_uart
builds for ARM - patches 26-33.
- Reorganize things a bit to avoid touching code that gets killed
anyway in a later patch.
Also the patches are now better grouped:
1-5 are about replacing in_be32 etc. in the core QE code (drivers/soc/fsl/qe).
6-8 handle miscellaneous other ppcisms.
9-21 deal with qe_ic: Simplifying the driver significantly by removing
unused code, and removing the platform-specific initialization from
arch/powerpc/.
22-25 deal with raw access to devicetree properties in native endianness.
26-33 makes drivers/tty/serial/ucc_uart.c (CONFIG_SERIAL_QE) ready to build on
arm.
34-36 remove the PPC32 dependency from QUICC_ENGINE. Two drivers that
depend on QUICC_ENGINE get an explicit PPC32 dependency to prevent
allmodconfig build failures.
The series has been built and booted on both an mpc8309-based platform
(ppc) as well as an ls1021a-based platform (arm). The core QE code is
exercised on both, while I could only test the ucc_uart on arm, since
the uarts are not wired up on our mpc8309 board.
Rasmus Villemoes (36):
soc: fsl: qe: remove space-before-tab
soc: fsl: qe: drop volatile qualifier of struct qe_ic::regs
soc: fsl: qe: rename qe_(clr/set/clrset)bit* helpers
soc: fsl: qe: introduce qe_io{read,write}* wrappers
soc: fsl: qe: avoid ppc-specific io accessors
soc: fsl: qe: replace spin_event_timeout by readx_poll_timeout_atomic
soc: fsl: qe: qe.c: guard use of pvr_version_is() with CONFIG_PPC32
soc: fsl: qe: drop unneeded #includes
soc: fsl: qe: drop assign-only high_active in qe_ic_init
soc: fsl: qe: remove pointless sysfs registration in qe_ic.c
soc: fsl: qe: use qe_ic_cascade_{low,high}_mpic also on 83xx
soc: fsl: qe: move calls of qe_ic_init out of arch/powerpc/
powerpc/83xx: remove mpc83xx_ipic_and_qe_init_IRQ
powerpc/85xx: remove mostly pointless mpc85xx_qe_init()
soc: fsl: qe: move qe_ic_cascade_* functions to qe_ic.c
soc: fsl: qe: rename qe_ic_cascade_low_mpic -> qe_ic_cascade_low
soc: fsl: qe: remove unused qe_ic_set_* functions
soc: fsl: qe: don't use NO_IRQ in qe_ic.c
soc: fsl: qe: make qe_ic_get_{low,high}_irq static
soc: fsl: qe: simplify qe_ic_init()
soc: fsl: qe: merge qe_ic.h headers into qe_ic.c
soc: fsl: qe: qe.c: use of_property_read_* helpers
soc: fsl: qe: qe_io.c: don't open-code of_parse_phandle()
soc: fsl: qe: qe_io.c: access device tree property using be32_to_cpu
soc: fsl: qe: qe_io.c: use of_property_read_u32() in par_io_init()
soc: fsl: move cpm.h from powerpc/include/asm to include/soc/fsl
soc/fsl/qe/qe.h: update include path for cpm.h
serial: ucc_uart: explicitly include soc/fsl/cpm.h
serial: ucc_uart: replace ppc-specific IO accessors
serial: ucc_uart: factor out soft_uart initialization
serial: ucc_uart: stub out soft_uart_init for !CONFIG_PPC32
serial: ucc_uart: use of_property_read_u32() in ucc_uart_probe()
serial: ucc_uart: access __be32 field using be32_to_cpu
net: ethernet: freescale: make UCC_GETH explicitly depend on PPC32
net/wan: make FSL_UCC_HDLC explicitly depend on PPC32
soc: fsl: qe: remove PPC32 dependency from CONFIG_QUICC_ENGINE
arch/powerpc/include/asm/cpm.h | 172 +-------
arch/powerpc/platforms/83xx/km83xx.c | 3 +-
arch/powerpc/platforms/83xx/misc.c | 23 --
arch/powerpc/platforms/83xx/mpc832x_mds.c | 3 +-
arch/powerpc/platforms/83xx/mpc832x_rdb.c | 3 +-
arch/powerpc/platforms/83xx/mpc836x_mds.c | 3 +-
arch/powerpc/platforms/83xx/mpc836x_rdk.c | 3 +-
arch/powerpc/platforms/83xx/mpc83xx.h | 7 -
arch/powerpc/platforms/85xx/common.c | 23 --
arch/powerpc/platforms/85xx/corenet_generic.c | 12 -
arch/powerpc/platforms/85xx/mpc85xx.h | 2 -
arch/powerpc/platforms/85xx/mpc85xx_mds.c | 28 --
arch/powerpc/platforms/85xx/mpc85xx_rdb.c | 18 -
arch/powerpc/platforms/85xx/twr_p102x.c | 16 -
drivers/net/ethernet/freescale/Kconfig | 2 +-
drivers/net/wan/Kconfig | 2 +-
drivers/net/wan/fsl_ucc_hdlc.c | 4 +-
drivers/soc/fsl/qe/Kconfig | 2 +-
drivers/soc/fsl/qe/gpio.c | 34 +-
drivers/soc/fsl/qe/qe.c | 95 ++---
drivers/soc/fsl/qe/qe_ic.c | 285 ++++++-------
drivers/soc/fsl/qe/qe_ic.h | 99 -----
drivers/soc/fsl/qe/qe_io.c | 70 ++--
drivers/soc/fsl/qe/qe_tdm.c | 8 +-
drivers/soc/fsl/qe/ucc.c | 26 +-
drivers/soc/fsl/qe/ucc_fast.c | 71 ++--
drivers/soc/fsl/qe/ucc_slow.c | 38 +-
drivers/soc/fsl/qe/usb.c | 2 +-
drivers/tty/serial/ucc_uart.c | 383 +++++++++---------
include/soc/fsl/cpm.h | 171 ++++++++
include/soc/fsl/qe/qe.h | 42 +-
include/soc/fsl/qe/qe_ic.h | 135 ------
32 files changed, 701 insertions(+), 1084 deletions(-)
delete mode 100644 drivers/soc/fsl/qe/qe_ic.h
create mode 100644 include/soc/fsl/cpm.h
delete mode 100644 include/soc/fsl/qe/qe_ic.h
--
2.23.0
