[PATCH] 86xx: Enable the AC97 interface on 8641D board.
From: Jon Loeliger <hidden>
Date: 2007-05-02 21:53:46
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
From: Jason Jin <redacted> 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[off-list ref] Acked-by: Jon Loeliger <redacted> --- arch/powerpc/platforms/86xx/mpc86xx_hpcn.c | 7 ++++++- 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 3d3d98f..13a14dd 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)
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1.5.0.3