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authorLinus Torvalds <torvalds@linux-foundation.org>2011-05-20 13:43:21 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-05-20 13:43:21 -0700
commit06f4e926d256d902dd9a53dcb400fd74974ce087 (patch)
tree0b438b67f5f0eff6fd617bc497a9dace6164a488 /drivers/ssb/driver_chipcommon.c
parent8e7bfcbab3825d1b404d615cb1b54f44ff81f981 (diff)
parentd93515611bbc70c2fe4db232e5feb448ed8e4cc9 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1446 commits) macvlan: fix panic if lowerdev in a bond tg3: Add braces around 5906 workaround. tg3: Fix NETIF_F_LOOPBACK error macvlan: remove one synchronize_rcu() call networking: NET_CLS_ROUTE4 depends on INET irda: Fix error propagation in ircomm_lmp_connect_response() irda: Kill set but unused variable 'bytes' in irlan_check_command_param() irda: Kill set but unused variable 'clen' in ircomm_connect_indication() rxrpc: Fix set but unused variable 'usage' in rxrpc_get_transport() be2net: Kill set but unused variable 'req' in lancer_fw_download() irda: Kill set but unused vars 'saddr' and 'daddr' in irlan_provider_connect_indication() atl1c: atl1c_resume() is only used when CONFIG_PM_SLEEP is defined. rxrpc: Fix set but unused variable 'usage' in rxrpc_get_peer(). rxrpc: Kill set but unused variable 'local' in rxrpc_UDP_error_handler() rxrpc: Kill set but unused variable 'sp' in rxrpc_process_connection() rxrpc: Kill set but unused variable 'sp' in rxrpc_rotate_tx_window() pkt_sched: Kill set but unused variable 'protocol' in tc_classify() isdn: capi: Use pr_debug() instead of ifdefs. tg3: Update version to 3.119 tg3: Apply rx_discards fix to 5719/5720 ... Fix up trivial conflicts in arch/x86/Kconfig and net/mac80211/agg-tx.c as per Davem.
Diffstat (limited to 'drivers/ssb/driver_chipcommon.c')
-rw-r--r--drivers/ssb/driver_chipcommon.c68
1 files changed, 50 insertions, 18 deletions
diff --git a/drivers/ssb/driver_chipcommon.c b/drivers/ssb/driver_chipcommon.c
index 7c031fdc8205..06d15b6f2215 100644
--- a/drivers/ssb/driver_chipcommon.c
+++ b/drivers/ssb/driver_chipcommon.c
@@ -46,40 +46,66 @@ void ssb_chipco_set_clockmode(struct ssb_chipcommon *cc,
if (!ccdev)
return;
bus = ccdev->bus;
+
+ /* We support SLOW only on 6..9 */
+ if (ccdev->id.revision >= 10 && mode == SSB_CLKMODE_SLOW)
+ mode = SSB_CLKMODE_DYNAMIC;
+
+ if (cc->capabilities & SSB_CHIPCO_CAP_PMU)
+ return; /* PMU controls clockmode, separated function needed */
+ SSB_WARN_ON(ccdev->id.revision >= 20);
+
/* chipcommon cores prior to rev6 don't support dynamic clock control */
if (ccdev->id.revision < 6)
return;
- /* chipcommon cores rev10 are a whole new ball game */
+
+ /* ChipCommon cores rev10+ need testing */
if (ccdev->id.revision >= 10)
return;
+
if (!(cc->capabilities & SSB_CHIPCO_CAP_PCTL))
return;
switch (mode) {
- case SSB_CLKMODE_SLOW:
+ case SSB_CLKMODE_SLOW: /* For revs 6..9 only */
tmp = chipco_read32(cc, SSB_CHIPCO_SLOWCLKCTL);
tmp |= SSB_CHIPCO_SLOWCLKCTL_FSLOW;
chipco_write32(cc, SSB_CHIPCO_SLOWCLKCTL, tmp);
break;
case SSB_CLKMODE_FAST:
- ssb_pci_xtal(bus, SSB_GPIO_XTAL, 1); /* Force crystal on */
- tmp = chipco_read32(cc, SSB_CHIPCO_SLOWCLKCTL);
- tmp &= ~SSB_CHIPCO_SLOWCLKCTL_FSLOW;
- tmp |= SSB_CHIPCO_SLOWCLKCTL_IPLL;
- chipco_write32(cc, SSB_CHIPCO_SLOWCLKCTL, tmp);
+ if (ccdev->id.revision < 10) {
+ ssb_pci_xtal(bus, SSB_GPIO_XTAL, 1); /* Force crystal on */
+ tmp = chipco_read32(cc, SSB_CHIPCO_SLOWCLKCTL);
+ tmp &= ~SSB_CHIPCO_SLOWCLKCTL_FSLOW;
+ tmp |= SSB_CHIPCO_SLOWCLKCTL_IPLL;
+ chipco_write32(cc, SSB_CHIPCO_SLOWCLKCTL, tmp);
+ } else {
+ chipco_write32(cc, SSB_CHIPCO_SYSCLKCTL,
+ (chipco_read32(cc, SSB_CHIPCO_SYSCLKCTL) |
+ SSB_CHIPCO_SYSCLKCTL_FORCEHT));
+ /* udelay(150); TODO: not available in early init */
+ }
break;
case SSB_CLKMODE_DYNAMIC:
- tmp = chipco_read32(cc, SSB_CHIPCO_SLOWCLKCTL);
- tmp &= ~SSB_CHIPCO_SLOWCLKCTL_FSLOW;
- tmp &= ~SSB_CHIPCO_SLOWCLKCTL_IPLL;
- tmp &= ~SSB_CHIPCO_SLOWCLKCTL_ENXTAL;
- if ((tmp & SSB_CHIPCO_SLOWCLKCTL_SRC) != SSB_CHIPCO_SLOWCLKCTL_SRC_XTAL)
- tmp |= SSB_CHIPCO_SLOWCLKCTL_ENXTAL;
- chipco_write32(cc, SSB_CHIPCO_SLOWCLKCTL, tmp);
-
- /* for dynamic control, we have to release our xtal_pu "force on" */
- if (tmp & SSB_CHIPCO_SLOWCLKCTL_ENXTAL)
- ssb_pci_xtal(bus, SSB_GPIO_XTAL, 0);
+ if (ccdev->id.revision < 10) {
+ tmp = chipco_read32(cc, SSB_CHIPCO_SLOWCLKCTL);
+ tmp &= ~SSB_CHIPCO_SLOWCLKCTL_FSLOW;
+ tmp &= ~SSB_CHIPCO_SLOWCLKCTL_IPLL;
+ tmp &= ~SSB_CHIPCO_SLOWCLKCTL_ENXTAL;
+ if ((tmp & SSB_CHIPCO_SLOWCLKCTL_SRC) !=
+ SSB_CHIPCO_SLOWCLKCTL_SRC_XTAL)
+ tmp |= SSB_CHIPCO_SLOWCLKCTL_ENXTAL;
+ chipco_write32(cc, SSB_CHIPCO_SLOWCLKCTL, tmp);
+
+ /* For dynamic control, we have to release our xtal_pu
+ * "force on" */
+ if (tmp & SSB_CHIPCO_SLOWCLKCTL_ENXTAL)
+ ssb_pci_xtal(bus, SSB_GPIO_XTAL, 0);
+ } else {
+ chipco_write32(cc, SSB_CHIPCO_SYSCLKCTL,
+ (chipco_read32(cc, SSB_CHIPCO_SYSCLKCTL) &
+ ~SSB_CHIPCO_SYSCLKCTL_FORCEHT));
+ }
break;
default:
SSB_WARN_ON(1);
@@ -260,6 +286,12 @@ void ssb_chipcommon_init(struct ssb_chipcommon *cc)
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);
+
+ if (cc->dev->id.revision >= 20) {
+ chipco_write32(cc, SSB_CHIPCO_GPIOPULLUP, 0);
+ chipco_write32(cc, SSB_CHIPCO_GPIOPULLDOWN, 0);
+ }
+
ssb_pmu_init(cc);
chipco_powercontrol_init(cc);
ssb_chipco_set_clockmode(cc, SSB_CLKMODE_FAST);