diff options
| author | Sebastian Siewior <bigeasy@tglx.de> | 2008-03-15 00:01:30 +0100 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2008-04-17 01:01:36 -0500 |
| commit | 1028d4f162796a99b87565b6b40b5fec79c242d0 (patch) | |
| tree | d8207c813ef7abb8f7f953351b2c874343a242ed | |
| parent | 370131c3f2cdd82edeb71add4b098b51803e214e (diff) | |
| download | blackbird-op-linux-1028d4f162796a99b87565b6b40b5fec79c242d0.tar.gz blackbird-op-linux-1028d4f162796a99b87565b6b40b5fec79c242d0.zip | |
[POWERPC] 85xx: Enable DMA engine on the MPC8544 DS
Add the device tree node for the DMA engine on 8544, publish
the device and enable the driver in the defconfig.
Signed-off-by: Sebastian Siewior <bigeasy@linutronix.de>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| -rw-r--r-- | arch/powerpc/boot/dts/mpc8544ds.dts | 41 | ||||
| -rw-r--r-- | arch/powerpc/configs/85xx/mpc8544_ds_defconfig | 17 | ||||
| -rw-r--r-- | arch/powerpc/platforms/85xx/mpc85xx_ds.c | 13 |
3 files changed, 70 insertions, 1 deletions
diff --git a/arch/powerpc/boot/dts/mpc8544ds.dts b/arch/powerpc/boot/dts/mpc8544ds.dts index 688af9d06382..131ffaae2b5d 100644 --- a/arch/powerpc/boot/dts/mpc8544ds.dts +++ b/arch/powerpc/boot/dts/mpc8544ds.dts @@ -116,6 +116,47 @@ }; }; + dma@21300 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "fsl,mpc8544-dma", "fsl,eloplus-dma"; + reg = <21300 4>; + ranges = <0 21100 200>; + cell-index = <0>; + dma-channel@0 { + compatible = "fsl,mpc8544-dma-channel", + "fsl,eloplus-dma-channel"; + reg = <0 80>; + cell-index = <0>; + interrupt-parent = <&mpic>; + interrupts = <14 2>; + }; + dma-channel@80 { + compatible = "fsl,mpc8544-dma-channel", + "fsl,eloplus-dma-channel"; + reg = <80 80>; + cell-index = <1>; + interrupt-parent = <&mpic>; + interrupts = <15 2>; + }; + dma-channel@100 { + compatible = "fsl,mpc8544-dma-channel", + "fsl,eloplus-dma-channel"; + reg = <100 80>; + cell-index = <2>; + interrupt-parent = <&mpic>; + interrupts = <16 2>; + }; + dma-channel@180 { + compatible = "fsl,mpc8544-dma-channel", + "fsl,eloplus-dma-channel"; + reg = <180 80>; + cell-index = <3>; + interrupt-parent = <&mpic>; + interrupts = <17 2>; + }; + }; + enet0: ethernet@24000 { cell-index = <0>; device_type = "network"; diff --git a/arch/powerpc/configs/85xx/mpc8544_ds_defconfig b/arch/powerpc/configs/85xx/mpc8544_ds_defconfig index 418bcdb5f919..a9f113b243ae 100644 --- a/arch/powerpc/configs/85xx/mpc8544_ds_defconfig +++ b/arch/powerpc/configs/85xx/mpc8544_ds_defconfig @@ -162,6 +162,7 @@ CONFIG_MPC85xx=y # CONFIG_MPC85xx_CDS is not set # CONFIG_MPC85xx_MDS is not set CONFIG_MPC85xx_DS=y +# CONFIG_KSI8560 is not set # CONFIG_STX_GP3 is not set # CONFIG_TQM8540 is not set # CONFIG_TQM8541 is not set @@ -202,6 +203,7 @@ CONFIG_PREEMPT_NONE=y # CONFIG_PREEMPT is not set CONFIG_BINFMT_ELF=y CONFIG_BINFMT_MISC=m +CONFIG_FORCE_MAX_ZONEORDER=11 CONFIG_MATH_EMULATION=y # CONFIG_IOMMU_HELPER is not set CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y @@ -1255,7 +1257,19 @@ CONFIG_RTC_DRV_CMOS=y # # on-CPU RTC drivers # -# CONFIG_DMADEVICES is not set +CONFIG_DMADEVICES=y + +# +# DMA Devices +# +CONFIG_FSL_DMA=y +# CONFIG_FSL_DMA_SELFTEST is not set +CONFIG_DMA_ENGINE=y + +# +# DMA Clients +# +# CONFIG_NET_DMA is not set # # Userspace I/O @@ -1447,6 +1461,7 @@ CONFIG_PLIST=y CONFIG_HAS_IOMEM=y CONFIG_HAS_IOPORT=y CONFIG_HAS_DMA=y +CONFIG_HAVE_LMB=y # # Kernel hacking diff --git a/arch/powerpc/platforms/85xx/mpc85xx_ds.c b/arch/powerpc/platforms/85xx/mpc85xx_ds.c index 2865d019afc3..dfd8b4ad9b28 100644 --- a/arch/powerpc/platforms/85xx/mpc85xx_ds.c +++ b/arch/powerpc/platforms/85xx/mpc85xx_ds.c @@ -19,6 +19,7 @@ #include <linux/delay.h> #include <linux/seq_file.h> #include <linux/interrupt.h> +#include <linux/of_platform.h> #include <asm/system.h> #include <asm/time.h> @@ -183,6 +184,18 @@ static int __init mpc8544_ds_probe(void) } } +static struct of_device_id mpc85xxds_ids[] = { + { .type = "soc", }, + { .compatible = "soc", }, + {}, +}; + +static int __init mpc85xxds_publish_devices(void) +{ + return of_platform_bus_probe(NULL, mpc85xxds_ids, NULL); +} +machine_device_initcall(mpc8544_ds, mpc85xxds_publish_devices); + /* * Called very early, device-tree isn't unflattened */ |
