[Qemu-devel] [4387] CFI-0002 linux MTD compatibility.

[Edgar E. Iglesias]

Revision: 4387
          http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=4387
Author:   edgar_igl
Date:     2008-05-08 21:02:43 +0000 (Thu, 08 May 2008)

Log Message:
-----------
CFI-0002 linux MTD compatibility.
* Add an extended table area.
* Clear buffer write timeouts to indicate that we dont support it.
* Correct device size.

Modified Paths:
--------------
    trunk/hw/pflash_cfi02.c

Modified: trunk/hw/pflash_cfi02.c
===================================================================
--- trunk/hw/pflash_cfi02.c     2008-05-08 12:21:27 UTC (rev 4386)
+++ trunk/hw/pflash_cfi02.c     2008-05-08 21:02:43 UTC (rev 4387)
@@ -608,8 +608,8 @@
     /* Command set (AMD/Fujitsu) */
     pfl->cfi_table[0x13] = 0x02;
     pfl->cfi_table[0x14] = 0x00;
-    /* Primary extended table address (none) */
-    pfl->cfi_table[0x15] = 0x00;
+    /* Primary extended table address */
+    pfl->cfi_table[0x15] = 0x31;
     pfl->cfi_table[0x16] = 0x00;
     /* Alternate command set (none) */
     pfl->cfi_table[0x17] = 0x00;
@@ -627,22 +627,22 @@
     pfl->cfi_table[0x1E] = 0x00;
     /* Reserved */
     pfl->cfi_table[0x1F] = 0x07;
-    /* Timeout for min size buffer write (16 \xB5s) */
-    pfl->cfi_table[0x20] = 0x04;
+    /* Timeout for min size buffer write (NA) */
+    pfl->cfi_table[0x20] = 0x00;
     /* Typical timeout for block erase (512 ms) */
     pfl->cfi_table[0x21] = 0x09;
     /* Typical timeout for full chip erase (4096 ms) */
     pfl->cfi_table[0x22] = 0x0C;
     /* Reserved */
     pfl->cfi_table[0x23] = 0x01;
-    /* Max timeout for buffer write */
-    pfl->cfi_table[0x24] = 0x04;
+    /* Max timeout for buffer write (NA) */
+    pfl->cfi_table[0x24] = 0x00;
     /* Max timeout for block erase */
     pfl->cfi_table[0x25] = 0x0A;
     /* Max timeout for chip erase */
     pfl->cfi_table[0x26] = 0x0D;
     /* Device size */
-    pfl->cfi_table[0x27] = ctz32(chip_len) + 1;
+    pfl->cfi_table[0x27] = ctz32(chip_len);
     /* Flash device interface (8 & 16 bits) */
     pfl->cfi_table[0x28] = 0x02;
     pfl->cfi_table[0x29] = 0x00;
@@ -659,5 +659,23 @@
     pfl->cfi_table[0x2F] = sector_len >> 8;
     pfl->cfi_table[0x30] = sector_len >> 16;
 
+    /* Extended */
+    pfl->cfi_table[0x31] = 'P';
+    pfl->cfi_table[0x32] = 'R';
+    pfl->cfi_table[0x33] = 'I';
+
+    pfl->cfi_table[0x34] = '1';
+    pfl->cfi_table[0x35] = '0';
+
+    pfl->cfi_table[0x36] = 0x00;
+    pfl->cfi_table[0x37] = 0x00;
+    pfl->cfi_table[0x38] = 0x00;
+    pfl->cfi_table[0x39] = 0x00;
+
+    pfl->cfi_table[0x3a] = 0x00;
+
+    pfl->cfi_table[0x3b] = 0x00;
+    pfl->cfi_table[0x3c] = 0x00;
+
     return pfl;
 }