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linux-next/drivers/bcma/driver_chipcommon_pmu.c
Linus Torvalds d3ec4844d4 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (43 commits)
  fs: Merge split strings
  treewide: fix potentially dangerous trailing ';' in #defined values/expressions
  uwb: Fix misspelling of neighbourhood in comment
  net, netfilter: Remove redundant goto in ebt_ulog_packet
  trivial: don't touch files that are removed in the staging tree
  lib/vsprintf: replace link to Draft by final RFC number
  doc: Kconfig: `to be' -> `be'
  doc: Kconfig: Typo: square -> squared
  doc: Konfig: Documentation/power/{pm => apm-acpi}.txt
  drivers/net: static should be at beginning of declaration
  drivers/media: static should be at beginning of declaration
  drivers/i2c: static should be at beginning of declaration
  XTENSA: static should be at beginning of declaration
  SH: static should be at beginning of declaration
  MIPS: static should be at beginning of declaration
  ARM: static should be at beginning of declaration
  rcu: treewide: Do not use rcu_read_lock_held when calling rcu_dereference_check
  Update my e-mail address
  PCIe ASPM: forcedly -> forcibly
  gma500: push through device driver tree
  ...

Fix up trivial conflicts:
 - arch/arm/mach-ep93xx/dma-m2p.c (deleted)
 - drivers/gpio/gpio-ep93xx.c (renamed and context nearby)
 - drivers/net/r8169.c (just context changes)
2011-07-25 13:56:39 -07:00

139 lines
3.0 KiB
C

/*
* Broadcom specific AMBA
* ChipCommon Power Management Unit driver
*
* Copyright 2009, Michael Buesch <m@bues.ch>
* Copyright 2007, Broadcom Corporation
*
* Licensed under the GNU/GPL. See COPYING for details.
*/
#include "bcma_private.h"
#include <linux/bcma/bcma.h>
static void bcma_chipco_chipctl_maskset(struct bcma_drv_cc *cc,
u32 offset, u32 mask, u32 set)
{
u32 value;
bcma_cc_read32(cc, BCMA_CC_CHIPCTL_ADDR);
bcma_cc_write32(cc, BCMA_CC_CHIPCTL_ADDR, offset);
bcma_cc_read32(cc, BCMA_CC_CHIPCTL_ADDR);
value = bcma_cc_read32(cc, BCMA_CC_CHIPCTL_DATA);
value &= mask;
value |= set;
bcma_cc_write32(cc, BCMA_CC_CHIPCTL_DATA, value);
bcma_cc_read32(cc, BCMA_CC_CHIPCTL_DATA);
}
static void bcma_pmu_pll_init(struct bcma_drv_cc *cc)
{
struct bcma_bus *bus = cc->core->bus;
switch (bus->chipinfo.id) {
case 0x4313:
case 0x4331:
case 43224:
case 43225:
break;
default:
pr_err("PLL init unknown for device 0x%04X\n",
bus->chipinfo.id);
}
}
static void bcma_pmu_resources_init(struct bcma_drv_cc *cc)
{
struct bcma_bus *bus = cc->core->bus;
u32 min_msk = 0, max_msk = 0;
switch (bus->chipinfo.id) {
case 0x4313:
min_msk = 0x200D;
max_msk = 0xFFFF;
break;
case 43224:
case 43225:
break;
default:
pr_err("PMU resource config unknown for device 0x%04X\n",
bus->chipinfo.id);
}
/* Set the resource masks. */
if (min_msk)
bcma_cc_write32(cc, BCMA_CC_PMU_MINRES_MSK, min_msk);
if (max_msk)
bcma_cc_write32(cc, BCMA_CC_PMU_MAXRES_MSK, max_msk);
}
void bcma_pmu_swreg_init(struct bcma_drv_cc *cc)
{
struct bcma_bus *bus = cc->core->bus;
switch (bus->chipinfo.id) {
case 0x4313:
case 0x4331:
case 43224:
case 43225:
break;
default:
pr_err("PMU switch/regulators init unknown for device "
"0x%04X\n", bus->chipinfo.id);
}
}
void bcma_pmu_workarounds(struct bcma_drv_cc *cc)
{
struct bcma_bus *bus = cc->core->bus;
switch (bus->chipinfo.id) {
case 0x4313:
bcma_chipco_chipctl_maskset(cc, 0, ~0, 0x7);
break;
case 0x4331:
pr_err("Enabling Ext PA lines not implemented\n");
break;
case 43224:
if (bus->chipinfo.rev == 0) {
pr_err("Workarounds for 43224 rev 0 not fully "
"implemented\n");
bcma_chipco_chipctl_maskset(cc, 0, ~0, 0x00F000F0);
} else {
bcma_chipco_chipctl_maskset(cc, 0, ~0, 0xF0);
}
break;
case 43225:
break;
default:
pr_err("Workarounds unknown for device 0x%04X\n",
bus->chipinfo.id);
}
}
void bcma_pmu_init(struct bcma_drv_cc *cc)
{
u32 pmucap;
pmucap = bcma_cc_read32(cc, BCMA_CC_PMU_CAP);
cc->pmu.rev = (pmucap & BCMA_CC_PMU_CAP_REVISION);
pr_debug("Found rev %u PMU (capabilities 0x%08X)\n", cc->pmu.rev,
pmucap);
if (cc->pmu.rev == 1)
bcma_cc_mask32(cc, BCMA_CC_PMU_CTL,
~BCMA_CC_PMU_CTL_NOILPONW);
else
bcma_cc_set32(cc, BCMA_CC_PMU_CTL,
BCMA_CC_PMU_CTL_NOILPONW);
if (cc->core->id.id == 0x4329 && cc->core->id.rev == 2)
pr_err("Fix for 4329b0 bad LPOM state not implemented!\n");
bcma_pmu_pll_init(cc);
bcma_pmu_resources_init(cc);
bcma_pmu_swreg_init(cc);
bcma_pmu_workarounds(cc);
}