diff options
| author | Alistair Popple <alistair@popple.id.au> | 2014-03-06 14:52:28 +1100 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2014-05-01 08:26:30 +1000 |
| commit | e2c37d908336dc27c8b405f063c2a163124947fa (patch) | |
| tree | 2a5582122d13305abcd4558ed6810329369ea211 /arch/powerpc/platforms/44x | |
| parent | 2a2c74b2efcb1a0ca3fdcb5fbb96ad8de6a29177 (diff) | |
powerpc: Added PCI MSI support using the HSTA module
The PPC476GTR SoC supports message signalled interrupts (MSI) by writing
to special addresses within the High Speed Transfer Assist (HSTA) module.
This patch adds support for PCI MSI with a new system device. The DMA
window is also updated to allow access to the entire 42-bit address range
to allow PCI devices write access to the HSTA module.
Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/platforms/44x')
| -rw-r--r-- | arch/powerpc/platforms/44x/Kconfig | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/44x/Kconfig b/arch/powerpc/platforms/44x/Kconfig index b0202d83063..8beec7d00ca 100644 --- a/arch/powerpc/platforms/44x/Kconfig +++ b/arch/powerpc/platforms/44x/Kconfig @@ -206,6 +206,8 @@ config AKEBONO select SWIOTLB select 476FPE select PPC4xx_PCI_EXPRESS + select PCI_MSI + select PPC4xx_HSTA_MSI select I2C select I2C_IBM_IIC select NETDEVICES |