From: Alex Deucher <alexdeucher@gmail.com>
Date: Thu, 30 Jun 2011 12:59:55 +0000 (-0400)
Subject: drm/radeon/kms: Fix chremap setup on RV770 CE
X-Git-Tag: v2.6.39.3~85
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=6f6d3321d249bbf8bd3a04d3f04281441c8012fa;p=karo-tx-linux.git

drm/radeon/kms: Fix chremap setup on RV770 CE

commit daf54f1f363a61c618662ef66d4bf09d2b090941 upstream.

CE variant requires a different chremap setup.

Fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=35472

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c
index ef8a5babe9f7..05aa6749802c 100644
--- a/drivers/gpu/drm/radeon/rv770.c
+++ b/drivers/gpu/drm/radeon/rv770.c
@@ -572,6 +572,12 @@ static void rv770_program_channel_remap(struct radeon_device *rdev)
 	else
 		tcp_chan_steer = 0x00fac688;
 
+	/* RV770 CE has special chremap setup */
+	if (rdev->pdev->device == 0x944e) {
+		tcp_chan_steer = 0x00b08b08;
+		mc_shared_chremap = 0x00b08b08;
+	}
+
 	WREG32(TCP_CHAN_STEER, tcp_chan_steer);
 	WREG32(MC_SHARED_CHREMAP, mc_shared_chremap);
 }