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Message-ID: <1433213604.3415.8.camel@freescale.com>
Date: Mon, 1 Jun 2015 21:53:24 -0500
From: Scott Wood <scottwood@...escale.com>
To: Zhao Qiang <B45475@...escale.com>
CC: <linuxppc-dev@...ts.ozlabs.org>, <linux-kernel@...r.kernel.org>,
<netdev@...r.kernel.org>
Subject: Re: [PATCH v5] QE: Move QE from arch/powerpc to drivers/soc
On Tue, 2015-06-02 at 10:37 +0800, Zhao Qiang wrote:
> 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 <B45475@...escale.com>
> ---
> Changes for v2:
> - move code to driver/soc
> Changes for v3:
> - change drivers/soc/qe to drivers/soc/fsl-qe
> Changes for v4:
> - move drivers/soc/fsl-qe to drivers/soc/fsl/qe
> - move head files for qe from include/linux/fsl to include/soc/fsl
> - move qe_ic.c to drivers/irqchip/
> Changes for v5:
> - update MAINTAINERS
>
> MAINTAINERS | 5 +++--
> arch/powerpc/platforms/83xx/km83xx.c | 4 ++--
> arch/powerpc/platforms/83xx/misc.c | 2 +-
> arch/powerpc/platforms/83xx/mpc832x_mds.c | 4 ++--
> arch/powerpc/platforms/83xx/mpc832x_rdb.c | 4 ++--
> arch/powerpc/platforms/83xx/mpc836x_mds.c | 4 ++--
> arch/powerpc/platforms/83xx/mpc836x_rdk.c | 4 ++--
> arch/powerpc/platforms/85xx/common.c | 2 +-
> arch/powerpc/platforms/85xx/corenet_generic.c | 2 +-
> arch/powerpc/platforms/85xx/mpc85xx_mds.c | 4 ++--
> arch/powerpc/platforms/85xx/mpc85xx_rdb.c | 4 ++--
> arch/powerpc/platforms/85xx/twr_p102x.c | 4 ++--
> arch/powerpc/platforms/Kconfig | 19 ------------
> ------
> arch/powerpc/sysdev/qe_lib/Kconfig | 23 ++++++------
> ----------
> arch/powerpc/sysdev/qe_lib/Makefile | 10 +++-------
> arch/powerpc/sysdev/qe_lib/gpio.c | 2 +-
> arch/powerpc/sysdev/qe_lib/qe_io.c | 2 +-
> arch/powerpc/sysdev/qe_lib/usb.c | 4 ++--
> drivers/irqchip/Makefile | 1 +
> .../sysdev/qe_lib => drivers/irqchip}/qe_ic.c | 2 +-
> .../sysdev/qe_lib => drivers/irqchip}/qe_ic.h | 2 +-
> drivers/net/ethernet/freescale/fsl_pq_mdio.c | 2 +-
> drivers/net/ethernet/freescale/ucc_geth.c | 8 ++++----
> drivers/net/ethernet/freescale/ucc_geth.h | 8 ++++----
> drivers/soc/Kconfig | 2 ++
> drivers/soc/Makefile | 1 +
> drivers/soc/fsl/Makefile | 5 +++++
> .../sysdev/qe_lib => drivers/soc/fsl/qe}/Kconfig | 16 +++++++++---
> ---
> drivers/soc/fsl/qe/Makefile | 8 ++++++++
> .../sysdev/qe_lib => drivers/soc/fsl/qe}/qe.c | 4 ++--
> .../sysdev/qe_lib => drivers/soc/fsl/qe}/ucc.c | 6 +++---
> .../qe_lib => drivers/soc/fsl/qe}/ucc_fast.c | 8 ++++----
> .../qe_lib => drivers/soc/fsl/qe}/ucc_slow.c | 8 ++++----
> drivers/spi/spi-fsl-cpm.c | 2 +-
> drivers/tty/serial/ucc_uart.c | 2 +-
> drivers/usb/gadget/fsl_qe_udc.c | 2 +-
> drivers/usb/host/fhci-hcd.c | 2 +-
> drivers/usb/host/fhci-hub.c | 2 +-
> drivers/usb/host/fhci-sched.c | 2 +-
> drivers/usb/host/fhci.h | 4 ++--
> .../include/asm => include/linux/fsl}/qe_ic.h | 0
> .../include/asm => include/soc/fsl}/immap_qe.h | 0
> {arch/powerpc/include/asm => include/soc/fsl}/qe.h | 2 +-
> .../powerpc/include/asm => include/soc/fsl}/ucc.h | 4 ++--
> .../include/asm => include/soc/fsl}/ucc_fast.h | 6 +++---
> .../include/asm => include/soc/fsl}/ucc_slow.h | 6 +++---
> 46 files changed, 103 insertions(+), 115 deletions(-)
> rename {arch/powerpc/sysdev/qe_lib => drivers/irqchip}/qe_ic.c (99%)
> rename {arch/powerpc/sysdev/qe_lib => drivers/irqchip}/qe_ic.h (98%)
> create mode 100644 drivers/soc/fsl/Makefile
> copy {arch/powerpc/sysdev/qe_lib => drivers/soc/fsl/qe}/Kconfig
> (50%)
> create mode 100644 drivers/soc/fsl/qe/Makefile
> rename {arch/powerpc/sysdev/qe_lib => drivers/soc/fsl/qe}/qe.c (99%)
> rename {arch/powerpc/sysdev/qe_lib => drivers/soc/fsl/qe}/ucc.c
> (98%)
> rename {arch/powerpc/sysdev/qe_lib =>
> drivers/soc/fsl/qe}/ucc_fast.c (99%)
> rename {arch/powerpc/sysdev/qe_lib =>
> drivers/soc/fsl/qe}/ucc_slow.c (98%)
> rename {arch/powerpc/include/asm => include/linux/fsl}/qe_ic.h
> (100%)
> rename {arch/powerpc/include/asm => include/soc/fsl}/immap_qe.h
> (100%)
> rename {arch/powerpc/include/asm => include/soc/fsl}/qe.h (99%)
> rename {arch/powerpc/include/asm => include/soc/fsl}/ucc.h (96%)
> rename {arch/powerpc/include/asm => include/soc/fsl}/ucc_fast.h
> (98%)
> rename {arch/powerpc/include/asm => include/soc/fsl}/ucc_slow.h
> (99%)
>
> diff --git a/MAINTAINERS b/MAINTAINERS
> index c43ea88..84b234b 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -3743,8 +3743,9 @@ F: include/linux/fs_enet_pd.h
> FREESCALE QUICC ENGINE LIBRARY
> L: linuxppc-dev@...ts.ozlabs.org
> S: Orphan
> -F: arch/powerpc/sysdev/qe_lib/
> -F: arch/powerpc/include/asm/*qe.h
> +F: drivers/soc/fsl/qe/
> +F: include/soc/fsl/*qe*.h
> +F: include/soc/fsl/*ucc*.h
You forgot to change "Orphan" to "Maintained" and designate a
maintainer.
Who is going to do the additional work to make this usable on ARM?
Who is going to merge those patches?
> diff --git a/arch/powerpc/sysdev/qe_lib/Kconfig
> b/drivers/soc/fsl/qe/Kconfig
> similarity index 50%
> copy from arch/powerpc/sysdev/qe_lib/Kconfig
> copy to drivers/soc/fsl/qe/Kconfig
> index 3c25199..e6b8862 100644
> --- a/arch/powerpc/sysdev/qe_lib/Kconfig
> +++ b/drivers/soc/fsl/qe/Kconfig
> @@ -1,6 +1,16 @@
> #
> # QE Communication options
> #
> +config QUICC_ENGINE
> + bool "Freescale QUICC Engine (QE) Support"
> + depends on FSL_SOC && PPC32
> + select PPC_LIB_RHEAP
> + select CRC32
> + help
> + The QUICC Engine (QE) is a new generation of communications
> + coprocessors on Freescale embedded CPUs (akin to CPM in older
> chips).
> + Selecting this option means that you wish to build a kernel
> + for a machine with a QE coprocessor.
The whole point of this move is to let the code be used on more than
just powerpc, so fix the rheap and other obvious PPC dependencies
first.
-Scott
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