On 1/7/08, Timur Tabi <timur@xxxxxxxxxxxxx> wrote: > Update the MPC8610 HPCD files to support the audio driver. Update > booting-without-of.txt with information on the SSI device. > > Signed-off-by: Timur Tabi <timur@xxxxxxxxxxxxx> > --- > > Updated based on comments from mailing lists. Split the patch into two parts. > > This patch applies on top of > git://git.kernel.org/pub/scm/linux/kernel/git/perex/alsa.git. > > Documentation/powerpc/booting-without-of.txt | 40 ++++++ > arch/powerpc/boot/dts/mpc8610_hpcd.dts | 110 ++++++++++++++++- > arch/powerpc/configs/mpc8610_hpcd_defconfig | 171 +++++++++++++++++++++++++- > arch/powerpc/platforms/86xx/mpc8610_hpcd.c | 18 +++ > 4 files changed, 335 insertions(+), 4 deletions(-) > > diff --git a/Documentation/powerpc/booting-without-of.txt b/Documentation/powerpc/booting-without-of.txt > index e9a3cb1..826af91 100644 > --- a/Documentation/powerpc/booting-without-of.txt > +++ b/Documentation/powerpc/booting-without-of.txt > @@ -53,6 +53,7 @@ Table of Contents > j) CFI or JEDEC memory-mapped NOR flash > k) Global Utilities Block > l) Xilinx IP cores > + p) Freescale Synchronous Serial Interface > > VII - Specifying interrupt information for devices > 1) interrupts property > @@ -2514,6 +2515,45 @@ platforms are moved over to use the flattened-device-tree model. > Requred properties: > - current-speed : Baud rate of uartlite > > + p) Freescale Synchronous Serial Interface > + > + The SSI is a serial device that communicates with audio codecs. It can > + be programmed in AC97, I2S, left-justified, or right-justified modes. > + > + Required properties: > + - compatible : compatible list, containing "fsl,ssi" > + - cell-index : the SSI, <0> = SSI1, <1> = SSI2, and so on > + - reg : offset and length of the register set for the device > + - interrupts : <a b> where a is the interrupt number and b is a > + field that represents an encoding of the sense and > + level information for the interrupt. This should be > + encoded based on the information in section 2) > + depending on the type of interrupt controller you > + have. > + - interrupt-parent : the phandle for the interrupt controller that > + services interrupts for this device. > + - fsl,mode : the operating mode for the SSI interface > + "i2s-slave" - I2S mode, SSI is clock slave > + "i2s-master" - I2S mode, SSI is clock master > + "lj-slave" - left-justified mode, SSI is clock slave > + "lj-master" - l.j. mode, SSI is clock master > + "rj-slave" - right-justified mode, SSI is clock slave > + "rj-master" - r.j., SSI is clock master > + "ac97-slave" - AC97 mode, SSI is clock slave > + "ac97-master" - AC97 mode, SSI is clock master > + > + Optional properties: > + - codec : child node that defines an audio codec connected > + to this SSI > + > + Child 'codec' node required properties: > + - compatible : compatible list, contains the name of the codec > + > + Child 'codec' node optional properties: > + - bus-frequency : The frequency of the input clock, which typically > + comes from an on-board dedicated oscillator. > + > + > More devices will be defined as this spec matures. > > VII - Specifying interrupt information for devices > diff --git a/arch/powerpc/boot/dts/mpc8610_hpcd.dts b/arch/powerpc/boot/dts/mpc8610_hpcd.dts > index 966edf1..fda0ace 100644 > --- a/arch/powerpc/boot/dts/mpc8610_hpcd.dts > +++ b/arch/powerpc/boot/dts/mpc8610_hpcd.dts > @@ -1,7 +1,7 @@ > /* > * MPC8610 HPCD Device Tree Source > * > - * Copyright 2007 Freescale Semiconductor Inc. > + * Copyright 2007-2008 Freescale Semiconductor Inc. > * > * 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 > @@ -42,6 +42,7 @@ > #size-cells = <1>; > #interrupt-cells = <2>; > device_type = "soc"; > + compatible = "fsl,mpc8610"; Something like "fsl,mpc8610-immr" might be a better choice here. This node doesn't actually describe the entire chip (for example, the PPC cores are in the cpus node); but it does describe the internally memory mapped registers. Cheers, g. -- Grant Likely, B.Sc., P.Eng. Secret Lab Technologies Ltd. _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
