Better macronix bottom boot handling, thanks Gabor !

SVN-Revision: 7618

4 files changed, 94 insertions, 34 deletions

diff --git a/target/linux/adm5120-2.6/config/default b/target/linux/adm5120-2.6/config/default
index aa6640cedd..2ba65db742 100644
--- a/target/linux/adm5120-2.6/config/default
+++ b/target/linux/adm5120-2.6/config/default
@@ -144,7 +144,7 @@ CONFIG_MTD_BLOCK2MTD=y
 CONFIG_MTD_CFI=y
 # CONFIG_MTD_CFI_ADV_OPTIONS is not set
 CONFIG_MTD_CFI_AMDSTD=y
-CONFIG_MTD_CFI_AMDSTD_FORCE_BOTTOM_BOOT=y
+CONFIG_MTD_CFI_FIXUP_MACRONIX_BOOTLOC=y
 CONFIG_MTD_CFI_I1=y
 CONFIG_MTD_CFI_I2=y
 # CONFIG_MTD_CFI_I4 is not set
diff --git a/target/linux/adm5120-2.6/files/drivers/usb/host/adm5120-hcd.c b/target/linux/adm5120-2.6/files/drivers/usb/host/adm5120-hcd.c
index a0ccaefd55..a9d0071dfa 100644
--- a/target/linux/adm5120-2.6/files/drivers/usb/host/adm5120-hcd.c
+++ b/target/linux/adm5120-2.6/files/drivers/usb/host/adm5120-hcd.c
@@ -30,6 +30,8 @@ MODULE_DESCRIPTION("ADM5120 USB Host Controller Driver");
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Jeroen Vreeken (pe1rxq@amsat.org)");
 
+#define PFX	"adm5120-hcd: "
+
 #define ADMHCD_REG_CONTROL		0x00
 #define ADMHCD_REG_INTSTATUS		0x04
 #define ADMHCD_REG_INTENABLE		0x08
@@ -826,11 +828,13 @@ static struct platform_driver adm5120hcd_driver = {
 
 static int __init adm5120hcd_init(void)
 {
-	if (usb_disabled())
+	if (usb_disabled()) 
 		return -ENODEV;
-	if (!adm5120_board.has_usb)
+	if (!adm5120_board.has_usb) {
+		printk(KERN_DEBUG PFX "this board does not have USB\n");
 		return -ENODEV;
 
+	printk(KERN_INFO PFX "registered\n");
 	return platform_driver_register(&adm5120hcd_driver);
 }
 
diff --git a/target/linux/adm5120-2.6/patches/101-cfi-fixup-macronix-bootloc.patch b/target/linux/adm5120-2.6/patches/101-cfi-fixup-macronix-bootloc.patch
new file mode 100644
index 0000000000..58b6dff1f2
--- /dev/null
+++ b/target/linux/adm5120-2.6/patches/101-cfi-fixup-macronix-bootloc.patch
@@ -0,0 +1,87 @@
+Index: linux-2.6.21.1/drivers/mtd/chips/cfi_cmdset_0002.c
+===================================================================
+--- linux-2.6.21.1.orig/drivers/mtd/chips/cfi_cmdset_0002.c
++++ linux-2.6.21.1/drivers/mtd/chips/cfi_cmdset_0002.c
+@@ -47,12 +47,17 @@
+ #define MANUFACTURER_AMD	0x0001
+ #define MANUFACTURER_ATMEL	0x001F
+ #define MANUFACTURER_SST	0x00BF
++#define MANUFACTURER_MACRONIX	0x00C2
+ #define SST49LF004B	        0x0060
+ #define SST49LF040B	        0x0050
+ #define SST49LF008A		0x005a
+ #define AT49BV6416		0x00d6
+ #define MANUFACTURER_SAMSUNG	0x00ec
+ 
++/* Macronix */
++#define MX29LV160B	0x2249	/* MX29LV160 Bottom-boot chip */
++#define MX29LV320B	0x22A8	/* MX29LV320 Bottom-boot chip */
++
+ static int cfi_amdstd_read (struct mtd_info *, loff_t, size_t, size_t *, u_char *);
+ static int cfi_amdstd_write_words(struct mtd_info *, loff_t, size_t, size_t *, const u_char *);
+ static int cfi_amdstd_write_buffers(struct mtd_info *, loff_t, size_t, size_t *, const u_char *);
+@@ -217,6 +222,35 @@ static void fixup_use_atmel_lock(struct 
+ 	mtd->flags |= MTD_STUPID_LOCK;
+ }
+ 
++#ifdef CONFIG_MTD_CFI_FIXUP_MACRONIX_BOOTLOC
++/*
++ * Some Macronix chips has bad bootblock information in the CFI table
++ */
++static void fixup_macronix_bootloc(struct mtd_info *mtd, void* param)
++{
++	struct map_info *map = mtd->priv;
++	struct cfi_private *cfi = map->fldrv_priv;
++	struct cfi_pri_amdstd *extp = cfi->cmdset_priv;
++	__u8 major = extp->MajorVersion;
++	__u8 minor = extp->MinorVersion;
++
++	switch (cfi->id) {
++	/* TODO: put affected chip ids here */
++	case MX29LV160B:
++	case MX29LV320B:
++		if (((major << 8) | minor) != 0x3131)
++			break;
++
++		if (extp->TopBottom == 2)
++			break;
++
++		extp->TopBottom = 2;	/* Bottom boot */
++		printk("%s: weird Macronix chip detected, id:0x%04X, boot location "
++			"forced to bottom\n", map->name, cfi->id);
++	}
++}
++#endif /* CONFIG_MTD_CFI_FIXUP_MACRONIX_BOOTLOC */
++
+ static struct cfi_fixup cfi_fixup_table[] = {
+ #ifdef AMD_BOOTLOC_BUG
+ 	{ CFI_MFR_AMD, CFI_ID_ANY, fixup_amd_bootblock, NULL },
+@@ -231,6 +265,9 @@ static struct cfi_fixup cfi_fixup_table[
+ 	{ CFI_MFR_ANY, CFI_ID_ANY, fixup_use_write_buffers, NULL, },
+ #endif
+ 	{ CFI_MFR_ATMEL, CFI_ID_ANY, fixup_convert_atmel_pri, NULL },
++#ifdef CONFIG_MTD_CFI_FIXUP_MACRONIX_BOOTLOC
++	{ MANUFACTURER_MACRONIX, CFI_ID_ANY, fixup_macronix_bootloc, NULL, },
++#endif
+ 	{ 0, 0, NULL, NULL }
+ };
+ static struct cfi_fixup jedec_fixup_table[] = {
+Index: linux-2.6.21.1/drivers/mtd/chips/Kconfig
+===================================================================
+--- linux-2.6.21.1.orig/drivers/mtd/chips/Kconfig
++++ linux-2.6.21.1/drivers/mtd/chips/Kconfig
+@@ -199,6 +199,14 @@ config MTD_CFI_AMDSTD
+ 	  provides support for one of those command sets, used on chips
+ 	  including the AMD Am29LV320.
+ 
++config MTD_CFI_FIXUP_MACRONIX_BOOTLOC
++	bool "Force bottom boot for Macronix flash chips"
++	depends on MTD_CFI_AMDSTD
++	help
++	  Some Macronix flash chips have wrong boot-block location in the
++	  CFI table, and the driver may detect the type incorrectly. Select 
++	  this if your board has such chip.
++
+ config MTD_CFI_STAA
+ 	tristate "Support for ST (Advanced Architecture) flash chips"
+ 	depends on MTD_GEN_PROBE
diff --git a/target/linux/adm5120-2.6/patches/101-mtd-mxflash.patch b/target/linux/adm5120-2.6/patches/101-mtd-mxflash.patch
index 754a91e09f..e69de29bb2 100755
--- a/target/linux/adm5120-2.6/patches/101-mtd-mxflash.patch
+++ b/target/linux/adm5120-2.6/patches/101-mtd-mxflash.patch
@@ -1,31 +0,0 @@
---- linux-2.6.19.2/drivers/mtd/chips/Kconfig.old	2007-01-11 03:10:36.000000000 +0800
-+++ linux-2.6.19.2/drivers/mtd/chips/Kconfig	2007-03-29 14:43:32.000000000 +0800
-@@ -199,6 +199,14 @@
- 	  provides support for one of those command sets, used on chips
- 	  including the AMD Am29LV320.
- 
-+config MTD_CFI_AMDSTD_FORCE_BOTTOM_BOOT
-+	bool "Force bottom boot for Macronix flash chips"
-+	depends on MTD_CFI_AMDSTD
-+	help
-+	  Some Macronix flash chips have wrong CFI info, and the driver may
-+	  detect the type incorrectly. Select this if the chip part number
-+	  ends with BTC.
-+
- config MTD_CFI_STAA
- 	tristate "Support for ST (Advanced Architecture) flash chips"
- 	depends on MTD_GEN_PROBE
---- linux-2.6.19.2/drivers/mtd/chips/cfi_cmdset_0002.c.old	2007-03-22 16:14:56.000000000 +0800
-+++ linux-2.6.19.2/drivers/mtd/chips/cfi_cmdset_0002.c	2007-03-29 14:07:28.000000000 +0800
-@@ -320,6 +320,11 @@
- 		cfi_tell_features(extp);
- #endif
- 
-+#ifdef CONFIG_MTD_CFI_AMDSTD_FORCE_BOTTOM_BOOT
-+		extp->TopBottom = 2;
-+		bootloc = extp->TopBottom;
-+#endif
-+
- 		bootloc = extp->TopBottom;
- 		if ((bootloc != 2) && (bootloc != 3)) {
- 			printk(KERN_WARNING "%s: CFI does not contain boot "