From 7bd1dee5b3d8c4ae687bb3a24c7a10867210fb5d Mon Sep 17 00:00:00 2001
From: "Ronald G. Minnich" <rminnich@gmail.com>
Date: Thu, 8 May 2003 19:33:19 +0000
Subject: Fix for sis 5595

Corresponding to coreboot v1 svn r805.
---
 flash_rom.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

(limited to 'flash_rom.c')

diff --git a/flash_rom.c b/flash_rom.c
index d80db6c..59d8197 100644
--- a/flash_rom.c
+++ b/flash_rom.c
@@ -188,6 +188,29 @@ enable_flash_cs5530(struct pci_dev *dev, char *name) {
   return 0;
 }
 
+int
+enable_flash_sis5595(struct pci_dev *dev, char *name) {
+  unsigned char new, newer;
+  
+  new = pci_read_byte(dev, 0x45);
+
+  /* clear bit 5 */
+  new &= (~ 0x20);
+  /* set bit 2 */
+  new |= 0x4;
+
+  pci_write_byte(dev, 0x45, new);
+
+  newer = pci_read_byte(dev, 0x45);
+  if (newer != new) {
+    printf("tried to set register 0x%x to 0x%x on %s failed (WARNING ONLY)\n", 
+	   0x45, new, name);
+    printf("Stuck at 0x%x\n", newer);
+    return -1;
+  }
+  return 0;
+}
+
 struct flashchip * probe_flash(struct flashchip * flash)
 {
     int fd_mem;
@@ -303,6 +326,7 @@ FLASH_ENABLE enables[] = {
   {0x8086, 0x2480, "E7500", enable_flash_e7500},
   {0x1106, 0x8231, "VT8231", enable_flash_vt8231},
   {0x1078, 0x0100, "CS5530", enable_flash_cs5530},
+  {0x1039, 0x8, "SIS5595", enable_flash_sis5595},
 };
   
 int
-- 
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