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authorGreg Kroah-Hartman <gregkh@suse.de>2010-08-06 10:22:56 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2010-08-10 10:20:49 -0700
commit7fc0405db42af7c170c6eb5d0244b38b54ea7d2c (patch)
tree2ccee7a0ffebc29884fab079d443664611c1067f /drivers
parent36eae1b4e41df69d0f4d34e168e1cb3a2af9422c (diff)
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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/ssb/driver_chipcommon.c3
-rw-r--r--drivers/ssb/driver_chipcommon_pmu.c17
-rw-r--r--drivers/ssb/pci.c46
-rw-r--r--drivers/ssb/sprom.c15
4 files changed, 16 insertions, 65 deletions
diff --git a/drivers/ssb/driver_chipcommon.c b/drivers/ssb/driver_chipcommon.c
index bbf1cb21a7d3..9681536163ca 100644
--- a/drivers/ssb/driver_chipcommon.c
+++ b/drivers/ssb/driver_chipcommon.c
@@ -233,9 +233,6 @@ void ssb_chipcommon_init(struct ssb_chipcommon *cc)
{
if (!cc->dev)
return; /* We don't have a ChipCommon */
- if (cc->dev->id.revision >= 11)
- cc->status = chipco_read32(cc, SSB_CHIPCO_CHIPSTAT);
- ssb_dprintk(KERN_INFO PFX "chipcommon status is 0x%x\n", cc->status);
ssb_pmu_init(cc);
chipco_powercontrol_init(cc);
ssb_chipco_set_clockmode(cc, SSB_CLKMODE_FAST);
diff --git a/drivers/ssb/driver_chipcommon_pmu.c b/drivers/ssb/driver_chipcommon_pmu.c
index 8e194d557cac..64abd11f6fbb 100644
--- a/drivers/ssb/driver_chipcommon_pmu.c
+++ b/drivers/ssb/driver_chipcommon_pmu.c
@@ -495,9 +495,9 @@ static void ssb_pmu_resources_init(struct ssb_chipcommon *cc)
chipco_write32(cc, SSB_CHIPCO_PMU_MAXRES_MSK, max_msk);
}
-/* http://bcm-v4.sipsolutions.net/802.11/SSB/PmuInit */
void ssb_pmu_init(struct ssb_chipcommon *cc)
{
+ struct ssb_bus *bus = cc->dev->bus;
u32 pmucap;
if (!(cc->capabilities & SSB_CHIPCO_CAP_PMU))
@@ -509,12 +509,15 @@ void ssb_pmu_init(struct ssb_chipcommon *cc)
ssb_dprintk(KERN_DEBUG PFX "Found rev %u PMU (capabilities 0x%08X)\n",
cc->pmu.rev, pmucap);
- if (cc->pmu.rev == 1)
- chipco_mask32(cc, SSB_CHIPCO_PMU_CTL,
- ~SSB_CHIPCO_PMU_CTL_NOILPONW);
- else
- chipco_set32(cc, SSB_CHIPCO_PMU_CTL,
- SSB_CHIPCO_PMU_CTL_NOILPONW);
+ if (cc->pmu.rev >= 1) {
+ if ((bus->chip_id == 0x4325) && (bus->chip_rev < 2)) {
+ chipco_mask32(cc, SSB_CHIPCO_PMU_CTL,
+ ~SSB_CHIPCO_PMU_CTL_NOILPONW);
+ } else {
+ chipco_set32(cc, SSB_CHIPCO_PMU_CTL,
+ SSB_CHIPCO_PMU_CTL_NOILPONW);
+ }
+ }
ssb_pmu_pll_init(cc);
ssb_pmu_resources_init(cc);
}
diff --git a/drivers/ssb/pci.c b/drivers/ssb/pci.c
index 17a178139548..9e50896233aa 100644
--- a/drivers/ssb/pci.c
+++ b/drivers/ssb/pci.c
@@ -22,7 +22,6 @@
#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
@@ -168,7 +167,7 @@ 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))
@@ -253,13 +252,8 @@ 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;
}
@@ -290,7 +284,7 @@ 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);
}
@@ -626,49 +620,21 @@ 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.
diff --git a/drivers/ssb/sprom.c b/drivers/ssb/sprom.c
index 5f7154d9d04e..eb708431cb96 100644
--- a/drivers/ssb/sprom.c
+++ b/drivers/ssb/sprom.c
@@ -179,18 +179,3 @@ const struct ssb_sprom *ssb_get_fallback_sprom(void)
{
return fallback_sprom;
}
-
-/* http://bcm-v4.sipsolutions.net/802.11/IsSpromAvailable */
-bool ssb_is_sprom_available(struct ssb_bus *bus)
-{
- /* status register only exists on chipcomon rev >= 11 and we need check
- for >= 31 only */
- /* this routine differs from specs as we do not access SPROM directly
- on PCMCIA */
- if (bus->bustype == SSB_BUSTYPE_PCI &&
- bus->chipco.dev && /* can be unavailible! */
- bus->chipco.dev->id.revision >= 31)
- return bus->chipco.capabilities & SSB_CHIPCO_CAP_SPROM;
-
- return true;
-}