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drm/nouveau/device: post write to NV_PMC_BOOT_1 when flipping endian switch 

fdo#88868

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2015-02-02 09:08:14 +10:00
parent 404ba3f790
commit 9fcaa149e7
1 changed files with 4 additions and 2 deletions
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6
drivers/gpu/drm/nouveau/nvkm/engine/device/base.c
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@ -340,11 +340,13 @@ nvkm_devobj_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
/* switch mmio to cpu's native endianness */
#ifndef __BIG_ENDIAN
if (ioread32_native(map + 0x000004) != 0x00000000)
if (ioread32_native(map + 0x000004) != 0x00000000) {
#else
if (ioread32_native(map + 0x000004) == 0x00000000)
if (ioread32_native(map + 0x000004) == 0x00000000) {
#endif
iowrite32_native(0x01000001, map + 0x000004);
ioread32_native(map);
}
/* read boot0 and strapping information */
boot0 = ioread32_native(map + 0x000000);