Update MPC8610 HPCD to support audio drivers
Subsystems (3)
PATCH v4 1/1 Update MPC8610 HPCD to support audio drivers
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 <[email protected]>
---
Rebased for Kumar's repo.
Documentation/powerpc/booting-without-of.txt | 41 ++++++ arch/powerpc/boot/dts/mpc8610_hpcd.dts | 113 +++++++++++++++++- arch/powerpc/configs/mpc8610_hpcd_defconfig | 171 +++++++++++++++++++++++++- arch/powerpc/platforms/86xx/mpc8610_hpcd.c | 15 +++ 4 files changed, 336 insertions(+), 4 deletions(-)
Documentation/powerpc/booting-without-of.txt +41 -0
@@ -56,6 +56,7 @@ Table of Contents m) Chipselect/Local Bus n) 4xx/Axon EMAC ethernet nodes o) Xilinx IP cores + p) Freescale Synchronous Serial Interface VII - Specifying interrupt information for devices 1) interrupts property
@@ -2575,6 +2576,46 @@ 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-handle : phandle to a 'codec' node that defines an audio + codec connected to this SSI. This node is typically + a child of an I2C or other control node. + + Child 'codec' node required properties: + - compatible : compatible list, contains the name of the codec + + Child 'codec' node optional properties: + - clock-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
arch/powerpc/boot/dts/mpc8610_hpcd.dts +112 -1
137 lines not on this page · raw message
arch/powerpc/configs/mpc8610_hpcd_defconfig +168 -3
189 lines not on this page · raw message
arch/powerpc/platforms/86xx/mpc8610_hpcd.c +15 -0
@@ -34,9 +34,24 @@#include <asm/mpic.h> +#include <linux/of_platform.h> #include <sysdev/fsl_pci.h> #include <sysdev/fsl_soc.h> +static struct of_device_id __initdata mpc8610_ids[] = { + { .compatible ="fsl,mpc8610-immr" , }, + {} +}; + +static int __init mpc8610_declare_of_platform_devices (void ) +{ +/* Without this call, the SSI device driver won't get probed. */ +of_platform_bus_probe (NULL , mpc8610_ids,NULL ); + +return 0 ; +} +machine_device_initcall (mpc86xx_hpcd, mpc8610_declare_of_platform_devices); +void __init mpc86xx_hpcd_init_irq (void ) {
Signature · 1 line
1.5.2.4
Kumar Gala
AppliedQuoted 6 lines · Timur Tabi
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 <[email protected]>---
Quoted 7 lines
Rebased for Kumar's repo.
Documentation/powerpc/booting-without-of.txt | 41 ++++++ arch/powerpc/boot/dts/mpc8610_hpcd.dts | 113 +++++++++++++++++- arch/powerpc/configs/mpc8610_hpcd_defconfig | 171 +++++++++++++++++++++++++- arch/powerpc/platforms/86xx/mpc8610_hpcd.c | 15 +++ 4 files changed, 336 insertions(+), 4 deletions(-)
applied.
- k