1 files changed, 94 insertions, 0 deletions

diff --git a/drivers/ide/ide-pio-blacklist.c b/drivers/ide/ide-pio-blacklist.c
new file mode 100644
index 000000000000..a8c2c8f8660a
--- /dev/null
+++ b/drivers/ide/ide-pio-blacklist.c
@@ -0,0 +1,94 @@
+/*
+ * PIO blacklist.  Some drives incorrectly report their maximal PIO mode,
+ * at least in respect to CMD640.  Here we keep info on some known drives.
+ *
+ * Changes to the ide_pio_blacklist[] should be made with EXTREME CAUTION
+ * to avoid breaking the fragile cmd640.c support.
+ */
+
+#include <linux/string.h>
+
+static struct ide_pio_info {
+        const char      *name;
+        int             pio;
+} ide_pio_blacklist [] = {
+        { "Conner Peripherals 540MB - CFS540A", 3 },
+
+        { "WDC AC2700",  3 },
+        { "WDC AC2540",  3 },
+        { "WDC AC2420",  3 },
+        { "WDC AC2340",  3 },
+        { "WDC AC2250",  0 },
+        { "WDC AC2200",  0 },
+        { "WDC AC21200", 4 },
+        { "WDC AC2120",  0 },
+        { "WDC AC2850",  3 },
+        { "WDC AC1270",  3 },
+        { "WDC AC1170",  1 },
+        { "WDC AC1210",  1 },
+        { "WDC AC280",   0 },
+        { "WDC AC31000", 3 },
+        { "WDC AC31200", 3 },
+
+        { "Maxtor 7131 AT", 1 },
+        { "Maxtor 7171 AT", 1 },
+        { "Maxtor 7213 AT", 1 },
+        { "Maxtor 7245 AT", 1 },
+        { "Maxtor 7345 AT", 1 },
+        { "Maxtor 7546 AT", 3 },
+        { "Maxtor 7540 AV", 3 },
+
+        { "SAMSUNG SHD-3121A", 1 },
+        { "SAMSUNG SHD-3122A", 1 },
+        { "SAMSUNG SHD-3172A", 1 },
+
+        { "ST5660A",  3 },
+        { "ST3660A",  3 },
+        { "ST3630A",  3 },
+        { "ST3655A",  3 },
+        { "ST3391A",  3 },
+        { "ST3390A",  1 },
+        { "ST3600A",  1 },
+        { "ST3290A",  0 },
+        { "ST3144A",  0 },
+        { "ST3491A",  1 }, /* reports 3, should be 1 or 2 (depending on drive)
+                              according to Seagate's FIND-ATA program */
+
+        { "QUANTUM ELS127A", 0 },
+        { "QUANTUM ELS170A", 0 },
+        { "QUANTUM LPS240A", 0 },
+        { "QUANTUM LPS210A", 3 },
+        { "QUANTUM LPS270A", 3 },
+        { "QUANTUM LPS365A", 3 },
+        { "QUANTUM LPS540A", 3 },
+        { "QUANTUM LIGHTNING 540A", 3 },
+        { "QUANTUM LIGHTNING 730A", 3 },
+
+        { "QUANTUM FIREBALL_540", 3 }, /* Older Quantum Fireballs don't work */
+        { "QUANTUM FIREBALL_640", 3 },
+        { "QUANTUM FIREBALL_1080", 3 },
+        { "QUANTUM FIREBALL_1280", 3 },
+        { NULL, 0 }
+};
+
+/**
+ *      ide_scan_pio_blacklist  -       check for a blacklisted drive
+ *      @model: Drive model string
+ *
+ *      This routine searches the ide_pio_blacklist for an entry
+ *      matching the start/whole of the supplied model name.
+ *
+ *      Returns -1 if no match found.
+ *      Otherwise returns the recommended PIO mode from ide_pio_blacklist[].
+ */
+
+int ide_scan_pio_blacklist(char *model)
+{
+        struct ide_pio_info *p;
+
+        for (p = ide_pio_blacklist; p->name != NULL; p++) {
+                if (strncmp(p->name, model, strlen(p->name)) == 0)
+                        return p->pio;
+        }
+        return -1;
+}