Revert "ssb: Handle Netbook devices where the SPROM address is changed"

Turns out this isn't the best way to resolve this issue.  The
individual patches will be applied instead.

Cc: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 6 insertions, 40 deletions

diff --git a/drivers/ssb/pci.c b/drivers/ssb/pci.c
index 7e284ae81a82..a8dbb06623c9 100644
--- a/drivers/ssb/pci.c
+++ b/drivers/ssb/pci.c
@@ -23,7 +23,6 @@
 
 #include "ssb_private.h"
 
-bool ssb_is_sprom_available(struct ssb_bus *bus);
 
 /* Define the following to 1 to enable a printk on each coreswitch. */
 #define SSB_VERBOSE_PCICORESWITCH_DEBUG		0
@@ -169,7 +168,7 @@ err_pci:
 }
 
 /* Get the word-offset for a SSB_SPROM_XXX define. */
-#define SPOFF(offset)	((offset) / sizeof(u16))
+#define SPOFF(offset)	(((offset) - SSB_SPROM_BASE) / sizeof(u16))
 /* Helper to extract some _offset, which is one of the SSB_SPROM_XXX defines. */
 #define SPEX16(_outvar, _offset, _mask, _shift)	\
 	out->_outvar = ((in[SPOFF(_offset)] & (_mask)) >> (_shift))
@@ -254,13 +253,8 @@ static int sprom_do_read(struct ssb_bus *bus, u16 *sprom)
 {
 	int i;
 
-	/* Check if SPROM can be read */
-	if (ioread16(bus->mmio + bus->sprom_offset) == 0xFFFF) {
-		ssb_printk(KERN_ERR PFX "Unable to read SPROM\n");
-		return -ENODEV;
-	}
 	for (i = 0; i < bus->sprom_size; i++)
-		sprom[i] = ioread16(bus->mmio + bus->sprom_offset + (i * 2));
+		sprom[i] = ioread16(bus->mmio + SSB_SPROM_BASE + (i * 2));
 
 	return 0;
 }
@@ -291,7 +285,7 @@ static int sprom_do_write(struct ssb_bus *bus, const u16 *sprom)
 			ssb_printk("75%%");
 		else if (i % 2)
 			ssb_printk(".");
-		writew(sprom[i], bus->mmio + bus->sprom_offset + (i * 2));
+		writew(sprom[i], bus->mmio + SSB_SPROM_BASE + (i * 2));
 		mmiowb();
 		msleep(20);
 	}
@@ -627,49 +621,21 @@ static int ssb_pci_sprom_get(struct ssb_bus *bus,
 	int err = -ENOMEM;
 	u16 *buf;
 
-	if (!ssb_is_sprom_available(bus)) {
-		ssb_printk(KERN_ERR PFX "No SPROM available!\n");
-		return -ENODEV;
-	}
-	if (bus->chipco.dev) {	/* can be unavailible! */
-		/*
-		 * get SPROM offset: SSB_SPROM_BASE1 except for
-		 * chipcommon rev >= 31 or chip ID is 0x4312 and
-		 * chipcommon status & 3 == 2
-		 */
-		if (bus->chipco.dev->id.revision >= 31)
-			bus->sprom_offset = SSB_SPROM_BASE31;
-		else if (bus->chip_id == 0x4312 &&
-			 (bus->chipco.status & 0x03) == 2)
-			bus->sprom_offset = SSB_SPROM_BASE31;
-		else
-			bus->sprom_offset = SSB_SPROM_BASE1;
-	} else {
-		bus->sprom_offset = SSB_SPROM_BASE1;
-	}
-	ssb_dprintk(KERN_INFO PFX "SPROM offset is 0x%x\n", bus->sprom_offset);
-
 	buf = kcalloc(SSB_SPROMSIZE_WORDS_R123, sizeof(u16), GFP_KERNEL);
 	if (!buf)
 		goto out;
 	bus->sprom_size = SSB_SPROMSIZE_WORDS_R123;
-	err = sprom_do_read(bus, buf);
-	if (err)
-		goto out_free;
+	sprom_do_read(bus, buf);
 	err = sprom_check_crc(buf, bus->sprom_size);
 	if (err) {
 		/* try for a 440 byte SPROM - revision 4 and higher */
 		kfree(buf);
 		buf = kcalloc(SSB_SPROMSIZE_WORDS_R4, sizeof(u16),
 			      GFP_KERNEL);
-		if (!buf) {
-			err = -ENOMEM;
+		if (!buf)
 			goto out;
-		}
 		bus->sprom_size = SSB_SPROMSIZE_WORDS_R4;
-		err = sprom_do_read(bus, buf);
-		if (err)
-			goto out_free;
+		sprom_do_read(bus, buf);
 		err = sprom_check_crc(buf, bus->sprom_size);
 		if (err) {
 			/* All CRC attempts failed.