From a5371dfe3909f14d45803efcfa5a85446f7954ac Mon Sep 17 00:00:00 2001
From: Florian Fainelli <florian@openwrt.org>
Date: Tue, 10 Aug 2010 20:23:40 +0000
Subject: rename 014-samsung_flash patch to a better name, thanks maddes

SVN-Revision: 22587
---
 .../014-cfi_fix_amd_extended_table_check.patch     | 50 ++++++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 target/linux/generic/patches-2.6.32/014-cfi_fix_amd_extended_table_check.patch

(limited to 'target/linux/generic/patches-2.6.32/014-cfi_fix_amd_extended_table_check.patch')

diff --git a/target/linux/generic/patches-2.6.32/014-cfi_fix_amd_extended_table_check.patch b/target/linux/generic/patches-2.6.32/014-cfi_fix_amd_extended_table_check.patch
new file mode 100644
index 0000000000..2618fafeb9
--- /dev/null
+++ b/target/linux/generic/patches-2.6.32/014-cfi_fix_amd_extended_table_check.patch
@@ -0,0 +1,50 @@
+--- a/drivers/mtd/chips/cfi_cmdset_0002.c
++++ b/drivers/mtd/chips/cfi_cmdset_0002.c
+@@ -325,6 +325,8 @@ static struct cfi_fixup fixup_table[] =
+ static void cfi_fixup_major_minor(struct cfi_private *cfi,
+ 				  struct cfi_pri_amdstd *extp)
+ {
++	// manufacturers defined in include/linux/mtd/cfi.h
++
+ 	if (cfi->mfr == CFI_MFR_SAMSUNG && cfi->id == 0x257e &&
+ 	    extp->MajorVersion == '0')
+ 		extp->MajorVersion = '1';
+@@ -355,6 +357,9 @@ struct mtd_info *cfi_cmdset_0002(struct
+ 	mtd->name    = map->name;
+ 	mtd->writesize = 1;
+ 
++	printk(" CFI mfr 0x%08x\n", cfi->mfr);	// TODO: Is there a more general place to print this info?
++	printk(" CFI id  0x%08x\n", cfi->id);
++
+ 	if (cfi->cfi_mode==CFI_MODE_CFI){
+ 		unsigned char bootloc;
+ 		/*
+@@ -373,16 +378,24 @@ struct mtd_info *cfi_cmdset_0002(struct
+ 
+ 		cfi_fixup_major_minor(cfi, extp);
+ 
+-		if (extp->MajorVersion != '1' ||
+-		    (extp->MinorVersion < '0' || extp->MinorVersion > '4')) {
++		// valid primary extension versions are: 1.0, 1.1, 1.2, 1.3
++		// see: http://www.amd.com/us-en/assets/content_type/DownloadableAssets/cfi_r20.pdf, page 19 and on
++		//      http://www.amd.com/us-en/assets/content_type/DownloadableAssets/cfi_100_20011201.pdf
++		if (extp->MajorVersion < '1' ||
++		    extp->MajorVersion > '1' ||
++		    (extp->MajorVersion == '1' && ( extp->MinorVersion < '0' || extp->MinorVersion > '3'))) {
+ 			printk(KERN_ERR "  Unknown Amd/Fujitsu Extended Query "
+-			       "version %c.%c.\n",  extp->MajorVersion,
+-			       extp->MinorVersion);
++			       "version %c.%c (0x%02x/0x%02x).\n",
++			       extp->MajorVersion, extp->MinorVersion,
++			       extp->MajorVersion, extp->MinorVersion);
+ 			kfree(extp);
+ 			kfree(mtd);
+ 			return NULL;
+ 		}
+ 
++		printk("  Amd/Fujitsu Extended Query version %c.%c.\n",
++		       extp->MajorVersion, extp->MinorVersion);
++
+ 		/* Install our own private info structure */
+ 		cfi->cmdset_priv = extp;
+ 
-- 
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