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authorJason Jin <jason.jin@freescale.com>2007-05-02 16:53:38 -0500
committerKumar Gala <galak@kernel.crashing.org>2007-05-09 23:01:09 -0500
commit742226c579c573c24386aaf41969a01ee058b97e (patch)
tree57e9a0fbd6cd58b0cdaa307ee72376858a91909d /arch
parent828765269efaafbf8973bb6e41d10970ee4effc3 (diff)
[POWERPC] 86xx: Enable the AC97 interface on 8641D board.
HD interface and AC97 interface share some pins and they are enabled at the same time, In order to use AC97 interface, we need to disable the HD interface first. Signed-off-by:Jason Jin<jason.jin@freescale.com> Acked-by: Jon Loeliger <jdl@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/platforms/86xx/mpc86xx_hpcn.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c
index 90877565caa3..1051702c8d4f 100644
--- a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c
+++ b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c
@@ -168,7 +168,7 @@ static void __devinit quirk_uli1575(struct pci_dev *dev)
{
unsigned short temp;
struct pci_controller *hose = pci_bus_to_host(dev->bus);
- unsigned char irq2pin[16];
+ unsigned char irq2pin[16], c;
unsigned long pirq_map_word = 0;
u32 irq;
int i;
@@ -288,6 +288,11 @@ static void __devinit quirk_uli1575(struct pci_dev *dev)
outb(0x1e, 0x4d1);
#undef ULI1575_SET_DEV_IRQ
+
+ /* Disable the HD interface and enable the AC97 interface. */
+ pci_read_config_byte(dev, 0xb8, &c);
+ c &= 0x7f;
+ pci_write_config_byte(dev, 0xb8, c);
}
static void __devinit quirk_uli5288(struct pci_dev *dev)