From 1de45237d18c530cbdf168231f94c2fdebe78282 Mon Sep 17 00:00:00 2001
From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Date: Thu, 17 May 2007 14:53:12 +0200
Subject: [PATCH] --- yaml --- r: 57399 b: refs/heads/master c:
 22df5bc591ea2d0dbe8240fe8af0816b8a6533b9 h: refs/heads/master i:   57397:
 62e83a89c8c4675fbbffdc8ae309f9c4ad2ff8d0   57395:
 3225ed0bdfb7c5ef3655b5f694157892cbb78e29   57391:
 a47894df62c7eb7d7c0a7801f4da222d0f7797de v: v3

---
 [refs]                      |  2 +-
 trunk/arch/mips/sni/setup.c | 33 ++++++++++++++++++++++++++++++++-
 2 files changed, 33 insertions(+), 2 deletions(-)

diff --git a/[refs] b/[refs]
index 33a5a34fff34..fd36cf52e52e 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 0c2bf745f9bdef7243ef5f04e6b05f592abead06
+refs/heads/master: 22df5bc591ea2d0dbe8240fe8af0816b8a6533b9
diff --git a/trunk/arch/mips/sni/setup.c b/trunk/arch/mips/sni/setup.c
index 68d7cf609b4f..4fedfbda0c79 100644
--- a/trunk/arch/mips/sni/setup.c
+++ b/trunk/arch/mips/sni/setup.c
@@ -6,7 +6,7 @@
  * for more details.
  *
  * Copyright (C) 1996, 97, 98, 2000, 03, 04, 06 Ralf Baechle (ralf@linux-mips.org)
- * Copyright (C) 2006 Thomas Bogendoerfer (tsbogend@alpha.franken.de)
+ * Copyright (C) 2006,2007 Thomas Bogendoerfer (tsbogend@alpha.franken.de)
  */
 #include <linux/eisa.h>
 #include <linux/init.h>
@@ -92,3 +92,34 @@ void __init plat_mem_setup(void)
 
 	sni_display_setup();
 }
+
+#if CONFIG_PCI
+
+#include <linux/pci.h>
+#include <video/vga.h>
+#include <video/cirrus.h>
+
+static void __devinit quirk_cirrus_ram_size(struct pci_dev *dev)
+{
+	u16 cmd;
+
+	/*
+	 * firmware doesn't set the ram size correct, so we
+	 * need to do it here, otherwise we get screen corruption
+	 * on older Cirrus chips
+	 */
+	pci_read_config_word (dev, PCI_COMMAND, &cmd);
+	if ((cmd & (PCI_COMMAND_IO|PCI_COMMAND_MEMORY))
+	        == (PCI_COMMAND_IO|PCI_COMMAND_MEMORY)) {
+		vga_wseq (NULL, CL_SEQR6, 0x12);	/* unlock all extension registers */
+		vga_wseq (NULL, CL_SEQRF, 0x18);
+	}
+}
+
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5434_8,
+                        quirk_cirrus_ram_size);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5436,
+                        quirk_cirrus_ram_size);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5446,
+                        quirk_cirrus_ram_size);
+#endif