Messages in this thread | | | Date | Thu, 24 Jan 2008 18:48:04 +0300 | From | Anton Vorontsov <> | Subject | Re: [PATCH UCC TDM 1/3 Updated] Platform changes for UCC TDM driver for MPC8323eRDB. Also includes related QE changes and dts entries. |
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Hello Poonam,
On Thu, Jan 24, 2008 at 04:00:06PM +0530, Poonam_Aggrwal-b10812 wrote: > Thanks Stephen for your comments, incorporated them. > From: Poonam Aggrwal <b10812@freescale.com> > > This patch makes necessary changes in the QE and UCC framework to support > TDM. It also adds support to configure the BRG properly through device > tree entries. Includes the device tree changes for UCC TDM driver as well. > It also includes device tree entries for UCC TDM driver. > > Tested on MPC8323ERDB platform. > > Signed-off-by: Poonam Aggrwal <b10812@freescale.com> > Signed-off-by: Ashish Kalra <ashish.kalra@freescale.com> > Signed-off-by: Kim Phillips <Kim.Phillips@freescale.com> > Signed-off-by: Michael Barkowski <michael.barkowski@freescale.com> > --- > arch/powerpc/boot/dts/mpc832x_rdb.dts | 58 +++++++ > arch/powerpc/sysdev/qe_lib/qe.c | 184 +++++++++++++++++++++-- > arch/powerpc/sysdev/qe_lib/ucc.c | 265 +++++++++++++++++++++++++++++++++ > arch/powerpc/sysdev/qe_lib/ucc_fast.c | 37 +++++ > include/asm-powerpc/qe.h | 8 + > include/asm-powerpc/ucc.h | 4 + > include/asm-powerpc/ucc_fast.h | 4 + > 7 files changed, 548 insertions(+), 12 deletions(-) > > diff --git a/arch/powerpc/boot/dts/mpc832x_rdb.dts b/arch/powerpc/boot/dts/mpc832x_rdb.dts > index 388c8a7..c0e6283 100644 > --- a/arch/powerpc/boot/dts/mpc832x_rdb.dts > +++ b/arch/powerpc/boot/dts/mpc832x_rdb.dts > @@ -105,6 +105,17 @@ > device_type = "par_io"; > num-ports = <7>; > > + ucc1pio:ucc_pin@01 { > + pio-map = < > + /* port pin dir open_drain assignment has_irq */ > + 0 e 2 0 1 0 /* CLK11 */ > + 3 16 1 0 2 0 /* BRG9 */ > + 3 1b 1 0 2 0 /* BRG3 */ > + 0 0 3 0 2 0 /* TDMATxD0 */ > + 0 4 3 0 2 0 /* TDMARxD0 */ > + 3 1b 2 0 1 0>; /* CLK1 */ > + }; > +
Can we not introduce new pio-maps in the device trees? There were debates regarding this, and if I understood everything correctly, pio-maps considered as a bad taste. Better do bunch of par_io_config_pin() in the board file. Better yet fixup the firmware (u-boot) to set up dedicated pins correctly.
Thanks,
-- Anton Vorontsov email: cbou@mail.ru backup email: ya-cbou@yandex.ru irc://irc.freenode.net/bd2
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