Changeset 3659 for trunk/util

Timestamp:

10/15/08 19:50:29 (3 months ago)

Author:

mjones

Message:

SB600 has four write once LPC ROM protect areas. It is not possible to write
enable that area once the register is set so print a warning.

Signed-off-by: Marc Jones <marcj.jones@…>
Acked-by: Ronald G. Minnich <rminnich@…>
Acked-by: Peter Stuge <peter@…>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@…>

Files:

• trunk/util/flashrom/chipset_enable.c (modified) (2 diffs)

trunk/util/flashrom/chipset_enable.c

@@ -567 +567 @@
                 printf("tried to set 0x%x to 0x%x on %s failed (WARNING ONLY)\n", 0x40, new, name);
                 return -1;
+        }
+
+        return 0;
+}
+
+static int enable_flash_sb600(struct pci_dev *dev, const char *name)
+{
+        uint32_t old, new;
+        uint8_t reg;
+
+        /* Clear ROM Protect 0-3 */
+        for (reg = 0x50; reg < 0x60; reg+=4) {
+                old = pci_read_long(dev, reg);
+                new = old & 0xFFFFFFFC;
+                if (new != old) {
+                        pci_write_byte(dev, reg, new);
+                        if (pci_read_long(dev, reg) != new) {
+                                printf("tried to set 0x%x to 0x%x on %s failed (WARNING ONLY)\n", 0x50, new, name);
+                        }
+                }
         }
 
@@ -745 +765 @@
         {0x1022, 0x2080, "AMD CS5536",          enable_flash_cs5536},
         {0x1022, 0x7468, "AMD8111",             enable_flash_amd8111},
+        {0x1002, 0x438D, "ATI(AMD) SB600",      enable_flash_sb600},
         {0x10B9, 0x1533, "ALi M1533",           enable_flash_ali_m1533},
         {0x10de, 0x0050, "NVIDIA CK804",        enable_flash_ck804}, /* LPC */