This patch enabled MSI on 8544ds and 8572ds board.
So far only one MSI interrupt can generate on 8544 board.
Signed-off-by: Jason Jin <[EMAIL PROTECTED]>
---
In this version:
Add a flag MPIC_BROKEN_FRR_NIRQS in mpic_alloc making the mpic use
irq_count instead of FRR[NIRQ] to initialize the interrupt controller.
So the hwirq num need to be changed.
arch/powerpc/boot/dts/mpc8544ds.dts | 16 ++++++++++++++++
arch/powerpc/boot/dts/mpc8572ds.dts | 16 ++++++++++++++++
arch/powerpc/platforms/85xx/mpc85xx_ds.c | 4 +++-
3 files changed, 35 insertions(+), 1 deletions(-)
diff --git a/arch/powerpc/boot/dts/mpc8544ds.dts
b/arch/powerpc/boot/dts/mpc8544ds.dts
index 6a0d8db..1cfd970 100644
--- a/arch/powerpc/boot/dts/mpc8544ds.dts
+++ b/arch/powerpc/boot/dts/mpc8544ds.dts
@@ -219,6 +219,22 @@
device_type = "open-pic";
big-endian;
};
+
+ [EMAIL PROTECTED] {
+ compatible = "fsl,mpc8544-msi", "fsl,mpic-msi";
+ reg = <0x41600 0x80>;
+ msi-available-ranges = <0 0x100>;
+ interrupts = <
+ 0xe0 0
+ 0xe1 0
+ 0xe2 0
+ 0xe3 0
+ 0xe4 0
+ 0xe5 0
+ 0xe6 0
+ 0xe7 0>;
+ interrupt-parent = <&mpic>;
+ };
};
pci0: [EMAIL PROTECTED] {
diff --git a/arch/powerpc/boot/dts/mpc8572ds.dts
b/arch/powerpc/boot/dts/mpc8572ds.dts
index 66f27ab..174d51a 100644
--- a/arch/powerpc/boot/dts/mpc8572ds.dts
+++ b/arch/powerpc/boot/dts/mpc8572ds.dts
@@ -221,6 +221,22 @@
fsl,has-rstcr;
};
+ [EMAIL PROTECTED] {
+ compatible = "fsl,mpc8572-msi", "fsl,mpic-msi";
+ reg = <0x41600 0x80>;
+ msi-available-ranges = <0 0x100>;
+ interrupts = <
+ 0xe0 0
+ 0xe1 0
+ 0xe2 0
+ 0xe3 0
+ 0xe4 0
+ 0xe5 0
+ 0xe6 0
+ 0xe7 0>;
+ interrupt-parent = <&mpic>;
+ };
+
mpic: [EMAIL PROTECTED] {
clock-frequency = <0>;
interrupt-controller;
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_ds.c
b/arch/powerpc/platforms/85xx/mpc85xx_ds.c
index dfd8b4a..b010dc9 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_ds.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_ds.c
@@ -78,7 +78,8 @@ void __init mpc85xx_ds_pic_init(void)
}
mpic = mpic_alloc(np, r.start,
- MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN,
+ MPIC_PRIMARY | MPIC_WANTS_RESET |
+ MPIC_BIG_ENDIAN | MPIC_BROKEN_FRR_NIRQS,
0, 256, " OpenPIC ");
BUG_ON(mpic == NULL);
@@ -195,6 +196,7 @@ static int __init mpc85xxds_publish_devices(void)
return of_platform_bus_probe(NULL, mpc85xxds_ids, NULL);
}
machine_device_initcall(mpc8544_ds, mpc85xxds_publish_devices);
+machine_device_initcall(mpc8572_ds, mpc85xxds_publish_devices);
/*
* Called very early, device-tree isn't unflattened
--
1.5.4
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