b3c47afbf5
On recent Broadcom chipsets PMU is present as separated core and it can't be accessed using ChipCommon anymore as it fails with e.g.: [ 0.000577] Unhandled fault: external abort on non-linefetch (0x1008) at 0xf1000604 Solve it by using a new (PMU) core pointer set to ChipCommon or PMU depending on the hardware capabilities. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
662 lines
19 KiB
C
662 lines
19 KiB
C
/*
|
|
* Broadcom specific AMBA
|
|
* ChipCommon Power Management Unit driver
|
|
*
|
|
* Copyright 2009, Michael Buesch <m@bues.ch>
|
|
* Copyright 2007, 2011, Broadcom Corporation
|
|
* Copyright 2011, 2012, Hauke Mehrtens <hauke@hauke-m.de>
|
|
*
|
|
* Licensed under the GNU/GPL. See COPYING for details.
|
|
*/
|
|
|
|
#include "bcma_private.h"
|
|
#include <linux/export.h>
|
|
#include <linux/bcma/bcma.h>
|
|
|
|
u32 bcma_chipco_pll_read(struct bcma_drv_cc *cc, u32 offset)
|
|
{
|
|
bcma_pmu_write32(cc, BCMA_CC_PMU_PLLCTL_ADDR, offset);
|
|
bcma_pmu_read32(cc, BCMA_CC_PMU_PLLCTL_ADDR);
|
|
return bcma_pmu_read32(cc, BCMA_CC_PMU_PLLCTL_DATA);
|
|
}
|
|
EXPORT_SYMBOL_GPL(bcma_chipco_pll_read);
|
|
|
|
void bcma_chipco_pll_write(struct bcma_drv_cc *cc, u32 offset, u32 value)
|
|
{
|
|
bcma_pmu_write32(cc, BCMA_CC_PMU_PLLCTL_ADDR, offset);
|
|
bcma_pmu_read32(cc, BCMA_CC_PMU_PLLCTL_ADDR);
|
|
bcma_pmu_write32(cc, BCMA_CC_PMU_PLLCTL_DATA, value);
|
|
}
|
|
EXPORT_SYMBOL_GPL(bcma_chipco_pll_write);
|
|
|
|
void bcma_chipco_pll_maskset(struct bcma_drv_cc *cc, u32 offset, u32 mask,
|
|
u32 set)
|
|
{
|
|
bcma_pmu_write32(cc, BCMA_CC_PMU_PLLCTL_ADDR, offset);
|
|
bcma_pmu_read32(cc, BCMA_CC_PMU_PLLCTL_ADDR);
|
|
bcma_pmu_maskset32(cc, BCMA_CC_PMU_PLLCTL_DATA, mask, set);
|
|
}
|
|
EXPORT_SYMBOL_GPL(bcma_chipco_pll_maskset);
|
|
|
|
void bcma_chipco_chipctl_maskset(struct bcma_drv_cc *cc,
|
|
u32 offset, u32 mask, u32 set)
|
|
{
|
|
bcma_pmu_write32(cc, BCMA_CC_PMU_CHIPCTL_ADDR, offset);
|
|
bcma_pmu_read32(cc, BCMA_CC_PMU_CHIPCTL_ADDR);
|
|
bcma_pmu_maskset32(cc, BCMA_CC_PMU_CHIPCTL_DATA, mask, set);
|
|
}
|
|
EXPORT_SYMBOL_GPL(bcma_chipco_chipctl_maskset);
|
|
|
|
void bcma_chipco_regctl_maskset(struct bcma_drv_cc *cc, u32 offset, u32 mask,
|
|
u32 set)
|
|
{
|
|
bcma_pmu_write32(cc, BCMA_CC_PMU_REGCTL_ADDR, offset);
|
|
bcma_pmu_read32(cc, BCMA_CC_PMU_REGCTL_ADDR);
|
|
bcma_pmu_maskset32(cc, BCMA_CC_PMU_REGCTL_DATA, mask, set);
|
|
}
|
|
EXPORT_SYMBOL_GPL(bcma_chipco_regctl_maskset);
|
|
|
|
static u32 bcma_pmu_xtalfreq(struct bcma_drv_cc *cc)
|
|
{
|
|
u32 ilp_ctl, alp_hz;
|
|
|
|
if (!(bcma_pmu_read32(cc, BCMA_CC_PMU_STAT) &
|
|
BCMA_CC_PMU_STAT_EXT_LPO_AVAIL))
|
|
return 0;
|
|
|
|
bcma_pmu_write32(cc, BCMA_CC_PMU_XTAL_FREQ,
|
|
BIT(BCMA_CC_PMU_XTAL_FREQ_MEASURE_SHIFT));
|
|
usleep_range(1000, 2000);
|
|
|
|
ilp_ctl = bcma_pmu_read32(cc, BCMA_CC_PMU_XTAL_FREQ);
|
|
ilp_ctl &= BCMA_CC_PMU_XTAL_FREQ_ILPCTL_MASK;
|
|
|
|
bcma_pmu_write32(cc, BCMA_CC_PMU_XTAL_FREQ, 0);
|
|
|
|
alp_hz = ilp_ctl * 32768 / 4;
|
|
return (alp_hz + 50000) / 100000 * 100;
|
|
}
|
|
|
|
static void bcma_pmu2_pll_init0(struct bcma_drv_cc *cc, u32 xtalfreq)
|
|
{
|
|
struct bcma_bus *bus = cc->core->bus;
|
|
u32 freq_tgt_target = 0, freq_tgt_current;
|
|
u32 pll0, mask;
|
|
|
|
switch (bus->chipinfo.id) {
|
|
case BCMA_CHIP_ID_BCM43142:
|
|
/* pmu2_xtaltab0_adfll_485 */
|
|
switch (xtalfreq) {
|
|
case 12000:
|
|
freq_tgt_target = 0x50D52;
|
|
break;
|
|
case 20000:
|
|
freq_tgt_target = 0x307FE;
|
|
break;
|
|
case 26000:
|
|
freq_tgt_target = 0x254EA;
|
|
break;
|
|
case 37400:
|
|
freq_tgt_target = 0x19EF8;
|
|
break;
|
|
case 52000:
|
|
freq_tgt_target = 0x12A75;
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
|
|
if (!freq_tgt_target) {
|
|
bcma_err(bus, "Unknown TGT frequency for xtalfreq %d\n",
|
|
xtalfreq);
|
|
return;
|
|
}
|
|
|
|
pll0 = bcma_chipco_pll_read(cc, BCMA_CC_PMU15_PLL_PLLCTL0);
|
|
freq_tgt_current = (pll0 & BCMA_CC_PMU15_PLL_PC0_FREQTGT_MASK) >>
|
|
BCMA_CC_PMU15_PLL_PC0_FREQTGT_SHIFT;
|
|
|
|
if (freq_tgt_current == freq_tgt_target) {
|
|
bcma_debug(bus, "Target TGT frequency already set\n");
|
|
return;
|
|
}
|
|
|
|
/* Turn off PLL */
|
|
switch (bus->chipinfo.id) {
|
|
case BCMA_CHIP_ID_BCM43142:
|
|
mask = (u32)~(BCMA_RES_4314_HT_AVAIL |
|
|
BCMA_RES_4314_MACPHY_CLK_AVAIL);
|
|
|
|
bcma_pmu_mask32(cc, BCMA_CC_PMU_MINRES_MSK, mask);
|
|
bcma_pmu_mask32(cc, BCMA_CC_PMU_MAXRES_MSK, mask);
|
|
bcma_wait_value(cc->core, BCMA_CLKCTLST,
|
|
BCMA_CLKCTLST_HAVEHT, 0, 20000);
|
|
break;
|
|
}
|
|
|
|
pll0 &= ~BCMA_CC_PMU15_PLL_PC0_FREQTGT_MASK;
|
|
pll0 |= freq_tgt_target << BCMA_CC_PMU15_PLL_PC0_FREQTGT_SHIFT;
|
|
bcma_chipco_pll_write(cc, BCMA_CC_PMU15_PLL_PLLCTL0, pll0);
|
|
|
|
/* Flush */
|
|
if (cc->pmu.rev >= 2)
|
|
bcma_pmu_set32(cc, BCMA_CC_PMU_CTL, BCMA_CC_PMU_CTL_PLL_UPD);
|
|
|
|
/* TODO: Do we need to update OTP? */
|
|
}
|
|
|
|
static void bcma_pmu_pll_init(struct bcma_drv_cc *cc)
|
|
{
|
|
struct bcma_bus *bus = cc->core->bus;
|
|
u32 xtalfreq = bcma_pmu_xtalfreq(cc);
|
|
|
|
switch (bus->chipinfo.id) {
|
|
case BCMA_CHIP_ID_BCM43142:
|
|
if (xtalfreq == 0)
|
|
xtalfreq = 20000;
|
|
bcma_pmu2_pll_init0(cc, xtalfreq);
|
|
break;
|
|
}
|
|
}
|
|
|
|
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 BCMA_CHIP_ID_BCM4313:
|
|
min_msk = 0x200D;
|
|
max_msk = 0xFFFF;
|
|
break;
|
|
case BCMA_CHIP_ID_BCM43142:
|
|
min_msk = BCMA_RES_4314_LPLDO_PU |
|
|
BCMA_RES_4314_PMU_SLEEP_DIS |
|
|
BCMA_RES_4314_PMU_BG_PU |
|
|
BCMA_RES_4314_CBUCK_LPOM_PU |
|
|
BCMA_RES_4314_CBUCK_PFM_PU |
|
|
BCMA_RES_4314_CLDO_PU |
|
|
BCMA_RES_4314_LPLDO2_LVM |
|
|
BCMA_RES_4314_WL_PMU_PU |
|
|
BCMA_RES_4314_LDO3P3_PU |
|
|
BCMA_RES_4314_OTP_PU |
|
|
BCMA_RES_4314_WL_PWRSW_PU |
|
|
BCMA_RES_4314_LQ_AVAIL |
|
|
BCMA_RES_4314_LOGIC_RET |
|
|
BCMA_RES_4314_MEM_SLEEP |
|
|
BCMA_RES_4314_MACPHY_RET |
|
|
BCMA_RES_4314_WL_CORE_READY;
|
|
max_msk = 0x3FFFFFFF;
|
|
break;
|
|
default:
|
|
bcma_debug(bus, "PMU resource config unknown or not needed for device 0x%04X\n",
|
|
bus->chipinfo.id);
|
|
}
|
|
|
|
/* Set the resource masks. */
|
|
if (min_msk)
|
|
bcma_pmu_write32(cc, BCMA_CC_PMU_MINRES_MSK, min_msk);
|
|
if (max_msk)
|
|
bcma_pmu_write32(cc, BCMA_CC_PMU_MAXRES_MSK, max_msk);
|
|
|
|
/*
|
|
* Add some delay; allow resources to come up and settle.
|
|
* Delay is required for SoC (early init).
|
|
*/
|
|
mdelay(2);
|
|
}
|
|
|
|
/* Disable to allow reading SPROM. Don't know the adventages of enabling it. */
|
|
void bcma_chipco_bcm4331_ext_pa_lines_ctl(struct bcma_drv_cc *cc, bool enable)
|
|
{
|
|
struct bcma_bus *bus = cc->core->bus;
|
|
u32 val;
|
|
|
|
val = bcma_cc_read32(cc, BCMA_CC_CHIPCTL);
|
|
if (enable) {
|
|
val |= BCMA_CHIPCTL_4331_EXTPA_EN;
|
|
if (bus->chipinfo.pkg == 9 || bus->chipinfo.pkg == 11)
|
|
val |= BCMA_CHIPCTL_4331_EXTPA_ON_GPIO2_5;
|
|
else if (bus->chipinfo.rev > 0)
|
|
val |= BCMA_CHIPCTL_4331_EXTPA_EN2;
|
|
} else {
|
|
val &= ~BCMA_CHIPCTL_4331_EXTPA_EN;
|
|
val &= ~BCMA_CHIPCTL_4331_EXTPA_EN2;
|
|
val &= ~BCMA_CHIPCTL_4331_EXTPA_ON_GPIO2_5;
|
|
}
|
|
bcma_cc_write32(cc, BCMA_CC_CHIPCTL, val);
|
|
}
|
|
|
|
static void bcma_pmu_workarounds(struct bcma_drv_cc *cc)
|
|
{
|
|
struct bcma_bus *bus = cc->core->bus;
|
|
|
|
switch (bus->chipinfo.id) {
|
|
case BCMA_CHIP_ID_BCM4313:
|
|
/* enable 12 mA drive strenth for 4313 and set chipControl
|
|
register bit 1 */
|
|
bcma_chipco_chipctl_maskset(cc, 0,
|
|
~BCMA_CCTRL_4313_12MA_LED_DRIVE,
|
|
BCMA_CCTRL_4313_12MA_LED_DRIVE);
|
|
break;
|
|
case BCMA_CHIP_ID_BCM4331:
|
|
case BCMA_CHIP_ID_BCM43431:
|
|
/* Ext PA lines must be enabled for tx on BCM4331 */
|
|
bcma_chipco_bcm4331_ext_pa_lines_ctl(cc, true);
|
|
break;
|
|
case BCMA_CHIP_ID_BCM43224:
|
|
case BCMA_CHIP_ID_BCM43421:
|
|
/* enable 12 mA drive strenth for 43224 and set chipControl
|
|
register bit 15 */
|
|
if (bus->chipinfo.rev == 0) {
|
|
bcma_cc_maskset32(cc, BCMA_CC_CHIPCTL,
|
|
~BCMA_CCTRL_43224_GPIO_TOGGLE,
|
|
BCMA_CCTRL_43224_GPIO_TOGGLE);
|
|
bcma_chipco_chipctl_maskset(cc, 0,
|
|
~BCMA_CCTRL_43224A0_12MA_LED_DRIVE,
|
|
BCMA_CCTRL_43224A0_12MA_LED_DRIVE);
|
|
} else {
|
|
bcma_chipco_chipctl_maskset(cc, 0,
|
|
~BCMA_CCTRL_43224B0_12MA_LED_DRIVE,
|
|
BCMA_CCTRL_43224B0_12MA_LED_DRIVE);
|
|
}
|
|
break;
|
|
default:
|
|
bcma_debug(bus, "Workarounds unknown or not needed for device 0x%04X\n",
|
|
bus->chipinfo.id);
|
|
}
|
|
}
|
|
|
|
void bcma_pmu_early_init(struct bcma_drv_cc *cc)
|
|
{
|
|
struct bcma_bus *bus = cc->core->bus;
|
|
u32 pmucap;
|
|
|
|
if (cc->core->id.rev >= 35 &&
|
|
cc->capabilities_ext & BCMA_CC_CAP_EXT_AOB_PRESENT) {
|
|
cc->pmu.core = bcma_find_core(bus, BCMA_CORE_PMU);
|
|
if (!cc->pmu.core)
|
|
bcma_warn(bus, "Couldn't find expected PMU core");
|
|
}
|
|
if (!cc->pmu.core)
|
|
cc->pmu.core = cc->core;
|
|
|
|
pmucap = bcma_pmu_read32(cc, BCMA_CC_PMU_CAP);
|
|
cc->pmu.rev = (pmucap & BCMA_CC_PMU_CAP_REVISION);
|
|
|
|
bcma_debug(bus, "Found rev %u PMU (capabilities 0x%08X)\n", cc->pmu.rev,
|
|
pmucap);
|
|
}
|
|
|
|
void bcma_pmu_init(struct bcma_drv_cc *cc)
|
|
{
|
|
if (cc->pmu.rev == 1)
|
|
bcma_pmu_mask32(cc, BCMA_CC_PMU_CTL,
|
|
~BCMA_CC_PMU_CTL_NOILPONW);
|
|
else
|
|
bcma_pmu_set32(cc, BCMA_CC_PMU_CTL,
|
|
BCMA_CC_PMU_CTL_NOILPONW);
|
|
|
|
bcma_pmu_pll_init(cc);
|
|
bcma_pmu_resources_init(cc);
|
|
bcma_pmu_workarounds(cc);
|
|
}
|
|
|
|
u32 bcma_pmu_get_alp_clock(struct bcma_drv_cc *cc)
|
|
{
|
|
struct bcma_bus *bus = cc->core->bus;
|
|
|
|
switch (bus->chipinfo.id) {
|
|
case BCMA_CHIP_ID_BCM4313:
|
|
case BCMA_CHIP_ID_BCM43224:
|
|
case BCMA_CHIP_ID_BCM43225:
|
|
case BCMA_CHIP_ID_BCM43227:
|
|
case BCMA_CHIP_ID_BCM43228:
|
|
case BCMA_CHIP_ID_BCM4331:
|
|
case BCMA_CHIP_ID_BCM43421:
|
|
case BCMA_CHIP_ID_BCM43428:
|
|
case BCMA_CHIP_ID_BCM43431:
|
|
case BCMA_CHIP_ID_BCM4716:
|
|
case BCMA_CHIP_ID_BCM47162:
|
|
case BCMA_CHIP_ID_BCM4748:
|
|
case BCMA_CHIP_ID_BCM4749:
|
|
case BCMA_CHIP_ID_BCM5357:
|
|
case BCMA_CHIP_ID_BCM53572:
|
|
case BCMA_CHIP_ID_BCM6362:
|
|
/* always 20Mhz */
|
|
return 20000 * 1000;
|
|
case BCMA_CHIP_ID_BCM4706:
|
|
case BCMA_CHIP_ID_BCM5356:
|
|
/* always 25Mhz */
|
|
return 25000 * 1000;
|
|
case BCMA_CHIP_ID_BCM43460:
|
|
case BCMA_CHIP_ID_BCM4352:
|
|
case BCMA_CHIP_ID_BCM4360:
|
|
if (cc->status & BCMA_CC_CHIPST_4360_XTAL_40MZ)
|
|
return 40000 * 1000;
|
|
else
|
|
return 20000 * 1000;
|
|
default:
|
|
bcma_warn(bus, "No ALP clock specified for %04X device, pmu rev. %d, using default %d Hz\n",
|
|
bus->chipinfo.id, cc->pmu.rev, BCMA_CC_PMU_ALP_CLOCK);
|
|
}
|
|
return BCMA_CC_PMU_ALP_CLOCK;
|
|
}
|
|
|
|
/* Find the output of the "m" pll divider given pll controls that start with
|
|
* pllreg "pll0" i.e. 12 for main 6 for phy, 0 for misc.
|
|
*/
|
|
static u32 bcma_pmu_pll_clock(struct bcma_drv_cc *cc, u32 pll0, u32 m)
|
|
{
|
|
u32 tmp, div, ndiv, p1, p2, fc;
|
|
struct bcma_bus *bus = cc->core->bus;
|
|
|
|
BUG_ON((pll0 & 3) || (pll0 > BCMA_CC_PMU4716_MAINPLL_PLL0));
|
|
|
|
BUG_ON(!m || m > 4);
|
|
|
|
if (bus->chipinfo.id == BCMA_CHIP_ID_BCM5357 ||
|
|
bus->chipinfo.id == BCMA_CHIP_ID_BCM4749) {
|
|
/* Detect failure in clock setting */
|
|
tmp = bcma_cc_read32(cc, BCMA_CC_CHIPSTAT);
|
|
if (tmp & 0x40000)
|
|
return 133 * 1000000;
|
|
}
|
|
|
|
tmp = bcma_chipco_pll_read(cc, pll0 + BCMA_CC_PPL_P1P2_OFF);
|
|
p1 = (tmp & BCMA_CC_PPL_P1_MASK) >> BCMA_CC_PPL_P1_SHIFT;
|
|
p2 = (tmp & BCMA_CC_PPL_P2_MASK) >> BCMA_CC_PPL_P2_SHIFT;
|
|
|
|
tmp = bcma_chipco_pll_read(cc, pll0 + BCMA_CC_PPL_M14_OFF);
|
|
div = (tmp >> ((m - 1) * BCMA_CC_PPL_MDIV_WIDTH)) &
|
|
BCMA_CC_PPL_MDIV_MASK;
|
|
|
|
tmp = bcma_chipco_pll_read(cc, pll0 + BCMA_CC_PPL_NM5_OFF);
|
|
ndiv = (tmp & BCMA_CC_PPL_NDIV_MASK) >> BCMA_CC_PPL_NDIV_SHIFT;
|
|
|
|
/* Do calculation in Mhz */
|
|
fc = bcma_pmu_get_alp_clock(cc) / 1000000;
|
|
fc = (p1 * ndiv * fc) / p2;
|
|
|
|
/* Return clock in Hertz */
|
|
return (fc / div) * 1000000;
|
|
}
|
|
|
|
static u32 bcma_pmu_pll_clock_bcm4706(struct bcma_drv_cc *cc, u32 pll0, u32 m)
|
|
{
|
|
u32 tmp, ndiv, p1div, p2div;
|
|
u32 clock;
|
|
|
|
BUG_ON(!m || m > 4);
|
|
|
|
/* Get N, P1 and P2 dividers to determine CPU clock */
|
|
tmp = bcma_chipco_pll_read(cc, pll0 + BCMA_CC_PMU6_4706_PROCPLL_OFF);
|
|
ndiv = (tmp & BCMA_CC_PMU6_4706_PROC_NDIV_INT_MASK)
|
|
>> BCMA_CC_PMU6_4706_PROC_NDIV_INT_SHIFT;
|
|
p1div = (tmp & BCMA_CC_PMU6_4706_PROC_P1DIV_MASK)
|
|
>> BCMA_CC_PMU6_4706_PROC_P1DIV_SHIFT;
|
|
p2div = (tmp & BCMA_CC_PMU6_4706_PROC_P2DIV_MASK)
|
|
>> BCMA_CC_PMU6_4706_PROC_P2DIV_SHIFT;
|
|
|
|
tmp = bcma_cc_read32(cc, BCMA_CC_CHIPSTAT);
|
|
if (tmp & BCMA_CC_CHIPST_4706_PKG_OPTION)
|
|
/* Low cost bonding: Fixed reference clock 25MHz and m = 4 */
|
|
clock = (25000000 / 4) * ndiv * p2div / p1div;
|
|
else
|
|
/* Fixed reference clock 25MHz and m = 2 */
|
|
clock = (25000000 / 2) * ndiv * p2div / p1div;
|
|
|
|
if (m == BCMA_CC_PMU5_MAINPLL_SSB)
|
|
clock = clock / 4;
|
|
|
|
return clock;
|
|
}
|
|
|
|
/* query bus clock frequency for PMU-enabled chipcommon */
|
|
u32 bcma_pmu_get_bus_clock(struct bcma_drv_cc *cc)
|
|
{
|
|
struct bcma_bus *bus = cc->core->bus;
|
|
|
|
switch (bus->chipinfo.id) {
|
|
case BCMA_CHIP_ID_BCM4716:
|
|
case BCMA_CHIP_ID_BCM4748:
|
|
case BCMA_CHIP_ID_BCM47162:
|
|
return bcma_pmu_pll_clock(cc, BCMA_CC_PMU4716_MAINPLL_PLL0,
|
|
BCMA_CC_PMU5_MAINPLL_SSB);
|
|
case BCMA_CHIP_ID_BCM5356:
|
|
return bcma_pmu_pll_clock(cc, BCMA_CC_PMU5356_MAINPLL_PLL0,
|
|
BCMA_CC_PMU5_MAINPLL_SSB);
|
|
case BCMA_CHIP_ID_BCM5357:
|
|
case BCMA_CHIP_ID_BCM4749:
|
|
return bcma_pmu_pll_clock(cc, BCMA_CC_PMU5357_MAINPLL_PLL0,
|
|
BCMA_CC_PMU5_MAINPLL_SSB);
|
|
case BCMA_CHIP_ID_BCM4706:
|
|
return bcma_pmu_pll_clock_bcm4706(cc,
|
|
BCMA_CC_PMU4706_MAINPLL_PLL0,
|
|
BCMA_CC_PMU5_MAINPLL_SSB);
|
|
case BCMA_CHIP_ID_BCM53572:
|
|
return 75000000;
|
|
default:
|
|
bcma_warn(bus, "No bus clock specified for %04X device, pmu rev. %d, using default %d Hz\n",
|
|
bus->chipinfo.id, cc->pmu.rev, BCMA_CC_PMU_HT_CLOCK);
|
|
}
|
|
return BCMA_CC_PMU_HT_CLOCK;
|
|
}
|
|
EXPORT_SYMBOL_GPL(bcma_pmu_get_bus_clock);
|
|
|
|
/* query cpu clock frequency for PMU-enabled chipcommon */
|
|
u32 bcma_pmu_get_cpu_clock(struct bcma_drv_cc *cc)
|
|
{
|
|
struct bcma_bus *bus = cc->core->bus;
|
|
|
|
if (bus->chipinfo.id == BCMA_CHIP_ID_BCM53572)
|
|
return 300000000;
|
|
|
|
/* New PMUs can have different clock for bus and CPU */
|
|
if (cc->pmu.rev >= 5) {
|
|
u32 pll;
|
|
switch (bus->chipinfo.id) {
|
|
case BCMA_CHIP_ID_BCM4706:
|
|
return bcma_pmu_pll_clock_bcm4706(cc,
|
|
BCMA_CC_PMU4706_MAINPLL_PLL0,
|
|
BCMA_CC_PMU5_MAINPLL_CPU);
|
|
case BCMA_CHIP_ID_BCM5356:
|
|
pll = BCMA_CC_PMU5356_MAINPLL_PLL0;
|
|
break;
|
|
case BCMA_CHIP_ID_BCM5357:
|
|
case BCMA_CHIP_ID_BCM4749:
|
|
pll = BCMA_CC_PMU5357_MAINPLL_PLL0;
|
|
break;
|
|
default:
|
|
pll = BCMA_CC_PMU4716_MAINPLL_PLL0;
|
|
break;
|
|
}
|
|
|
|
return bcma_pmu_pll_clock(cc, pll, BCMA_CC_PMU5_MAINPLL_CPU);
|
|
}
|
|
|
|
/* On old PMUs CPU has the same clock as the bus */
|
|
return bcma_pmu_get_bus_clock(cc);
|
|
}
|
|
|
|
static void bcma_pmu_spuravoid_pll_write(struct bcma_drv_cc *cc, u32 offset,
|
|
u32 value)
|
|
{
|
|
bcma_pmu_write32(cc, BCMA_CC_PMU_PLLCTL_ADDR, offset);
|
|
bcma_pmu_write32(cc, BCMA_CC_PMU_PLLCTL_DATA, value);
|
|
}
|
|
|
|
void bcma_pmu_spuravoid_pllupdate(struct bcma_drv_cc *cc, int spuravoid)
|
|
{
|
|
u32 tmp = 0;
|
|
u8 phypll_offset = 0;
|
|
u8 bcm5357_bcm43236_p1div[] = {0x1, 0x5, 0x5};
|
|
u8 bcm5357_bcm43236_ndiv[] = {0x30, 0xf6, 0xfc};
|
|
struct bcma_bus *bus = cc->core->bus;
|
|
|
|
switch (bus->chipinfo.id) {
|
|
case BCMA_CHIP_ID_BCM5357:
|
|
case BCMA_CHIP_ID_BCM4749:
|
|
case BCMA_CHIP_ID_BCM53572:
|
|
/* 5357[ab]0, 43236[ab]0, and 6362b0 */
|
|
|
|
/* BCM5357 needs to touch PLL1_PLLCTL[02],
|
|
so offset PLL0_PLLCTL[02] by 6 */
|
|
phypll_offset = (bus->chipinfo.id == BCMA_CHIP_ID_BCM5357 ||
|
|
bus->chipinfo.id == BCMA_CHIP_ID_BCM4749 ||
|
|
bus->chipinfo.id == BCMA_CHIP_ID_BCM53572) ? 6 : 0;
|
|
|
|
/* RMW only the P1 divider */
|
|
bcma_pmu_write32(cc, BCMA_CC_PMU_PLLCTL_ADDR,
|
|
BCMA_CC_PMU_PLL_CTL0 + phypll_offset);
|
|
tmp = bcma_pmu_read32(cc, BCMA_CC_PMU_PLLCTL_DATA);
|
|
tmp &= (~(BCMA_CC_PMU1_PLL0_PC0_P1DIV_MASK));
|
|
tmp |= (bcm5357_bcm43236_p1div[spuravoid] << BCMA_CC_PMU1_PLL0_PC0_P1DIV_SHIFT);
|
|
bcma_pmu_write32(cc, BCMA_CC_PMU_PLLCTL_DATA, tmp);
|
|
|
|
/* RMW only the int feedback divider */
|
|
bcma_pmu_write32(cc, BCMA_CC_PMU_PLLCTL_ADDR,
|
|
BCMA_CC_PMU_PLL_CTL2 + phypll_offset);
|
|
tmp = bcma_pmu_read32(cc, BCMA_CC_PMU_PLLCTL_DATA);
|
|
tmp &= ~(BCMA_CC_PMU1_PLL0_PC2_NDIV_INT_MASK);
|
|
tmp |= (bcm5357_bcm43236_ndiv[spuravoid]) << BCMA_CC_PMU1_PLL0_PC2_NDIV_INT_SHIFT;
|
|
bcma_pmu_write32(cc, BCMA_CC_PMU_PLLCTL_DATA, tmp);
|
|
|
|
tmp = BCMA_CC_PMU_CTL_PLL_UPD;
|
|
break;
|
|
|
|
case BCMA_CHIP_ID_BCM4331:
|
|
case BCMA_CHIP_ID_BCM43431:
|
|
if (spuravoid == 2) {
|
|
bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0,
|
|
0x11500014);
|
|
bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2,
|
|
0x0FC00a08);
|
|
} else if (spuravoid == 1) {
|
|
bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0,
|
|
0x11500014);
|
|
bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2,
|
|
0x0F600a08);
|
|
} else {
|
|
bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0,
|
|
0x11100014);
|
|
bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2,
|
|
0x03000a08);
|
|
}
|
|
tmp = BCMA_CC_PMU_CTL_PLL_UPD;
|
|
break;
|
|
|
|
case BCMA_CHIP_ID_BCM43224:
|
|
case BCMA_CHIP_ID_BCM43225:
|
|
case BCMA_CHIP_ID_BCM43421:
|
|
if (spuravoid == 1) {
|
|
bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0,
|
|
0x11500010);
|
|
bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL1,
|
|
0x000C0C06);
|
|
bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2,
|
|
0x0F600a08);
|
|
bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL3,
|
|
0x00000000);
|
|
bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL4,
|
|
0x2001E920);
|
|
bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL5,
|
|
0x88888815);
|
|
} else {
|
|
bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0,
|
|
0x11100010);
|
|
bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL1,
|
|
0x000c0c06);
|
|
bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2,
|
|
0x03000a08);
|
|
bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL3,
|
|
0x00000000);
|
|
bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL4,
|
|
0x200005c0);
|
|
bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL5,
|
|
0x88888815);
|
|
}
|
|
tmp = BCMA_CC_PMU_CTL_PLL_UPD;
|
|
break;
|
|
|
|
case BCMA_CHIP_ID_BCM4716:
|
|
case BCMA_CHIP_ID_BCM4748:
|
|
case BCMA_CHIP_ID_BCM47162:
|
|
if (spuravoid == 1) {
|
|
bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0,
|
|
0x11500060);
|
|
bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL1,
|
|
0x080C0C06);
|
|
bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2,
|
|
0x0F600000);
|
|
bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL3,
|
|
0x00000000);
|
|
bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL4,
|
|
0x2001E924);
|
|
bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL5,
|
|
0x88888815);
|
|
} else {
|
|
bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0,
|
|
0x11100060);
|
|
bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL1,
|
|
0x080c0c06);
|
|
bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2,
|
|
0x03000000);
|
|
bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL3,
|
|
0x00000000);
|
|
bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL4,
|
|
0x200005c0);
|
|
bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL5,
|
|
0x88888815);
|
|
}
|
|
|
|
tmp = BCMA_CC_PMU_CTL_PLL_UPD | BCMA_CC_PMU_CTL_NOILPONW;
|
|
break;
|
|
|
|
case BCMA_CHIP_ID_BCM43131:
|
|
case BCMA_CHIP_ID_BCM43217:
|
|
case BCMA_CHIP_ID_BCM43227:
|
|
case BCMA_CHIP_ID_BCM43228:
|
|
case BCMA_CHIP_ID_BCM43428:
|
|
/* LCNXN */
|
|
/* PLL Settings for spur avoidance on/off mode,
|
|
no on2 support for 43228A0 */
|
|
if (spuravoid == 1) {
|
|
bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0,
|
|
0x01100014);
|
|
bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL1,
|
|
0x040C0C06);
|
|
bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2,
|
|
0x03140A08);
|
|
bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL3,
|
|
0x00333333);
|
|
bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL4,
|
|
0x202C2820);
|
|
bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL5,
|
|
0x88888815);
|
|
} else {
|
|
bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0,
|
|
0x11100014);
|
|
bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL1,
|
|
0x040c0c06);
|
|
bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2,
|
|
0x03000a08);
|
|
bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL3,
|
|
0x00000000);
|
|
bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL4,
|
|
0x200005c0);
|
|
bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL5,
|
|
0x88888815);
|
|
}
|
|
tmp = BCMA_CC_PMU_CTL_PLL_UPD;
|
|
break;
|
|
default:
|
|
bcma_err(bus, "Unknown spuravoidance settings for chip 0x%04X, not changing PLL\n",
|
|
bus->chipinfo.id);
|
|
break;
|
|
}
|
|
|
|
tmp |= bcma_pmu_read32(cc, BCMA_CC_PMU_CTL);
|
|
bcma_pmu_write32(cc, BCMA_CC_PMU_CTL, tmp);
|
|
}
|
|
EXPORT_SYMBOL_GPL(bcma_pmu_spuravoid_pllupdate);
|