Better macronix bottom boot handling, thanks Gabor !
SVN-Revision: 7618
This commit is contained in:
Florian Fainelli
parent
d4c8b230b5
commit
ff76ce5d3e
5 changed files with 95 additions and 35 deletions
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@ -144,7 +144,7 @@ CONFIG_MTD_BLOCK2MTD=y
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CONFIG_MTD_CFI=y
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# CONFIG_MTD_CFI_ADV_OPTIONS is not set
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CONFIG_MTD_CFI_AMDSTD=y
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CONFIG_MTD_CFI_AMDSTD_FORCE_BOTTOM_BOOT=y
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CONFIG_MTD_CFI_FIXUP_MACRONIX_BOOTLOC=y
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CONFIG_MTD_CFI_I1=y
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CONFIG_MTD_CFI_I2=y
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# CONFIG_MTD_CFI_I4 is not set
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@ -30,6 +30,8 @@ MODULE_DESCRIPTION("ADM5120 USB Host Controller Driver");
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MODULE_LICENSE("GPL");
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MODULE_AUTHOR("Jeroen Vreeken (pe1rxq@amsat.org)");
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#define PFX "adm5120-hcd: "
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#define ADMHCD_REG_CONTROL 0x00
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#define ADMHCD_REG_INTSTATUS 0x04
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#define ADMHCD_REG_INTENABLE 0x08
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@ -826,11 +828,13 @@ static struct platform_driver adm5120hcd_driver = {
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static int __init adm5120hcd_init(void)
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{
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if (usb_disabled())
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if (usb_disabled())
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return -ENODEV;
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if (!adm5120_board.has_usb)
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if (!adm5120_board.has_usb) {
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printk(KERN_DEBUG PFX "this board does not have USB\n");
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return -ENODEV;
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printk(KERN_INFO PFX "registered\n");
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return platform_driver_register(&adm5120hcd_driver);
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}
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@ -0,0 +1,87 @@
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Index: linux-2.6.21.1/drivers/mtd/chips/cfi_cmdset_0002.c
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===================================================================
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--- linux-2.6.21.1.orig/drivers/mtd/chips/cfi_cmdset_0002.c
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+++ linux-2.6.21.1/drivers/mtd/chips/cfi_cmdset_0002.c
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@@ -47,12 +47,17 @@
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#define MANUFACTURER_AMD 0x0001
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#define MANUFACTURER_ATMEL 0x001F
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#define MANUFACTURER_SST 0x00BF
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+#define MANUFACTURER_MACRONIX 0x00C2
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#define SST49LF004B 0x0060
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#define SST49LF040B 0x0050
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#define SST49LF008A 0x005a
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#define AT49BV6416 0x00d6
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#define MANUFACTURER_SAMSUNG 0x00ec
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+/* Macronix */
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+#define MX29LV160B 0x2249 /* MX29LV160 Bottom-boot chip */
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+#define MX29LV320B 0x22A8 /* MX29LV320 Bottom-boot chip */
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+
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static int cfi_amdstd_read (struct mtd_info *, loff_t, size_t, size_t *, u_char *);
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static int cfi_amdstd_write_words(struct mtd_info *, loff_t, size_t, size_t *, const u_char *);
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static int cfi_amdstd_write_buffers(struct mtd_info *, loff_t, size_t, size_t *, const u_char *);
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@@ -217,6 +222,35 @@ static void fixup_use_atmel_lock(struct
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mtd->flags |= MTD_STUPID_LOCK;
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}
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+#ifdef CONFIG_MTD_CFI_FIXUP_MACRONIX_BOOTLOC
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+/*
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+ * Some Macronix chips has bad bootblock information in the CFI table
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+ */
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+static void fixup_macronix_bootloc(struct mtd_info *mtd, void* param)
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+{
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+ struct map_info *map = mtd->priv;
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+ struct cfi_private *cfi = map->fldrv_priv;
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+ struct cfi_pri_amdstd *extp = cfi->cmdset_priv;
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+ __u8 major = extp->MajorVersion;
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+ __u8 minor = extp->MinorVersion;
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+
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+ switch (cfi->id) {
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+ /* TODO: put affected chip ids here */
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+ case MX29LV160B:
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+ case MX29LV320B:
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+ if (((major << 8) | minor) != 0x3131)
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+ break;
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+
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+ if (extp->TopBottom == 2)
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+ break;
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+
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+ extp->TopBottom = 2; /* Bottom boot */
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+ printk("%s: weird Macronix chip detected, id:0x%04X, boot location "
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+ "forced to bottom\n", map->name, cfi->id);
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+ }
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+}
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+#endif /* CONFIG_MTD_CFI_FIXUP_MACRONIX_BOOTLOC */
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+
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static struct cfi_fixup cfi_fixup_table[] = {
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#ifdef AMD_BOOTLOC_BUG
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{ CFI_MFR_AMD, CFI_ID_ANY, fixup_amd_bootblock, NULL },
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@@ -231,6 +265,9 @@ static struct cfi_fixup cfi_fixup_table[
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{ CFI_MFR_ANY, CFI_ID_ANY, fixup_use_write_buffers, NULL, },
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#endif
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{ CFI_MFR_ATMEL, CFI_ID_ANY, fixup_convert_atmel_pri, NULL },
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+#ifdef CONFIG_MTD_CFI_FIXUP_MACRONIX_BOOTLOC
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+ { MANUFACTURER_MACRONIX, CFI_ID_ANY, fixup_macronix_bootloc, NULL, },
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+#endif
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{ 0, 0, NULL, NULL }
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};
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static struct cfi_fixup jedec_fixup_table[] = {
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Index: linux-2.6.21.1/drivers/mtd/chips/Kconfig
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===================================================================
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--- linux-2.6.21.1.orig/drivers/mtd/chips/Kconfig
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+++ linux-2.6.21.1/drivers/mtd/chips/Kconfig
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@@ -199,6 +199,14 @@ config MTD_CFI_AMDSTD
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provides support for one of those command sets, used on chips
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including the AMD Am29LV320.
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+config MTD_CFI_FIXUP_MACRONIX_BOOTLOC
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+ bool "Force bottom boot for Macronix flash chips"
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+ depends on MTD_CFI_AMDSTD
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+ help
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+ Some Macronix flash chips have wrong boot-block location in the
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+ CFI table, and the driver may detect the type incorrectly. Select
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+ this if your board has such chip.
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+
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config MTD_CFI_STAA
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tristate "Support for ST (Advanced Architecture) flash chips"
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depends on MTD_GEN_PROBE
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@ -1,31 +0,0 @@
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--- linux-2.6.19.2/drivers/mtd/chips/Kconfig.old 2007-01-11 03:10:36.000000000 +0800
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+++ linux-2.6.19.2/drivers/mtd/chips/Kconfig 2007-03-29 14:43:32.000000000 +0800
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@@ -199,6 +199,14 @@
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provides support for one of those command sets, used on chips
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including the AMD Am29LV320.
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+config MTD_CFI_AMDSTD_FORCE_BOTTOM_BOOT
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+ bool "Force bottom boot for Macronix flash chips"
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+ depends on MTD_CFI_AMDSTD
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+ help
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+ Some Macronix flash chips have wrong CFI info, and the driver may
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+ detect the type incorrectly. Select this if the chip part number
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+ ends with BTC.
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+
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config MTD_CFI_STAA
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tristate "Support for ST (Advanced Architecture) flash chips"
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depends on MTD_GEN_PROBE
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--- linux-2.6.19.2/drivers/mtd/chips/cfi_cmdset_0002.c.old 2007-03-22 16:14:56.000000000 +0800
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+++ linux-2.6.19.2/drivers/mtd/chips/cfi_cmdset_0002.c 2007-03-29 14:07:28.000000000 +0800
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@@ -320,6 +320,11 @@
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cfi_tell_features(extp);
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#endif
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+#ifdef CONFIG_MTD_CFI_AMDSTD_FORCE_BOTTOM_BOOT
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+ extp->TopBottom = 2;
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+ bootloc = extp->TopBottom;
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+#endif
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+
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bootloc = extp->TopBottom;
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if ((bootloc != 2) && (bootloc != 3)) {
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printk(KERN_WARNING "%s: CFI does not contain boot "
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@ -144,7 +144,7 @@ CONFIG_MTD_BLOCK2MTD=y
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CONFIG_MTD_CFI=y
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# CONFIG_MTD_CFI_ADV_OPTIONS is not set
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CONFIG_MTD_CFI_AMDSTD=y
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CONFIG_MTD_CFI_AMDSTD_FORCE_BOTTOM_BOOT=y
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CONFIG_MTD_CFI_FIXUP_MACRONIX_BOOTLOC=y
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CONFIG_MTD_CFI_I1=y
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CONFIG_MTD_CFI_I2=y
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# CONFIG_MTD_CFI_I4 is not set
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