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bcma: add support for BCM43142 

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Rafał Miłecki 2013-06-26 10:02:11 +02:00 committed by John W. Linville
parent 8960400eee
commit 88f9b65d44
8 changed files with 211 additions and 2 deletions
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2
drivers/bcma/bcma_private.h
View File

@ -22,6 +22,8 @@
struct bcma_bus;
/* main.c */
bool bcma_wait_value(struct bcma_device *core, u16 reg, u32 mask, u32 value,
int timeout);
int bcma_bus_register(struct bcma_bus *bus);
void bcma_bus_unregister(struct bcma_bus *bus);
int __init bcma_bus_early_register(struct bcma_bus *bus,

11
drivers/bcma/driver_chipcommon.c
View File

@ -140,8 +140,15 @@ void bcma_core_chipcommon_init(struct bcma_drv_cc *cc)
bcma_core_chipcommon_early_init(cc);
if (cc->core->id.rev >= 20) {
bcma_cc_write32(cc, BCMA_CC_GPIOPULLUP, 0);
bcma_cc_write32(cc, BCMA_CC_GPIOPULLDOWN, 0);
u32 pullup = 0, pulldown = 0;
if (cc->core->bus->chipinfo.id == BCMA_CHIP_ID_BCM43142) {
pullup = 0x402e0;
pulldown = 0x20500;
}
bcma_cc_write32(cc, BCMA_CC_GPIOPULLUP, pullup);
bcma_cc_write32(cc, BCMA_CC_GPIOPULLDOWN, pulldown);
}
if (cc->capabilities & BCMA_CC_CAP_PMU)

123
drivers/bcma/driver_chipcommon_pmu.c
View File

@ -56,6 +56,109 @@ void bcma_chipco_regctl_maskset(struct bcma_drv_cc *cc, u32 offset, u32 mask,
}
EXPORT_SYMBOL_GPL(bcma_chipco_regctl_maskset);
static u32 bcma_pmu_xtalfreq(struct bcma_drv_cc *cc)
{
u32 ilp_ctl, alp_hz;
if (!(bcma_cc_read32(cc, BCMA_CC_PMU_STAT) &
BCMA_CC_PMU_STAT_EXT_LPO_AVAIL))
return 0;
bcma_cc_write32(cc, BCMA_CC_PMU_XTAL_FREQ,
BIT(BCMA_CC_PMU_XTAL_FREQ_MEASURE_SHIFT));
usleep_range(1000, 2000);
ilp_ctl = bcma_cc_read32(cc, BCMA_CC_PMU_XTAL_FREQ);
ilp_ctl &= BCMA_CC_PMU_XTAL_FREQ_ILPCTL_MASK;
bcma_cc_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_cc_mask32(cc, BCMA_CC_PMU_MINRES_MSK, mask);
bcma_cc_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_cc_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;
@ -66,6 +169,25 @@ static void bcma_pmu_resources_init(struct bcma_drv_cc *cc)
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);
@ -165,6 +287,7 @@ void bcma_pmu_init(struct bcma_drv_cc *cc)
bcma_cc_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);
}

1
drivers/bcma/host_pci.c
View File

@ -275,6 +275,7 @@ static DEFINE_PCI_DEVICE_TABLE(bcma_pci_bridge_tbl) = {
{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4357) },
{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4358) },
{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4359) },
{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4365) },
{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4727) },
{ 0, },
};

19
drivers/bcma/main.c
View File

@ -93,6 +93,25 @@ struct bcma_device *bcma_find_core_unit(struct bcma_bus *bus, u16 coreid,
return NULL;
}
bool bcma_wait_value(struct bcma_device *core, u16 reg, u32 mask, u32 value,
int timeout)
{
unsigned long deadline = jiffies + timeout;
u32 val;
do {
val = bcma_read32(core, reg);
if ((val & mask) == value)
return true;
cpu_relax();
udelay(10);
} while (!time_after_eq(jiffies, deadline));
bcma_warn(core->bus, "Timeout waiting for register 0x%04X!\n", reg);
return false;
}
static void bcma_release_core_dev(struct device *dev)
{
struct bcma_device *core = container_of(dev, struct bcma_device, dev);

1
drivers/bcma/sprom.c
View File

@ -503,6 +503,7 @@ static bool bcma_sprom_onchip_available(struct bcma_bus *bus)
case BCMA_CHIP_ID_BCM4331:
present = chip_status & BCMA_CC_CHIPST_4331_OTP_PRESENT;
break;
case BCMA_CHIP_ID_BCM43142:
case BCMA_CHIP_ID_BCM43224:
case BCMA_CHIP_ID_BCM43225:
/* for these chips OTP is always available */

1
include/linux/bcma/bcma.h
View File

@ -144,6 +144,7 @@ struct bcma_host_ops {
/* Chip IDs of PCIe devices */
#define BCMA_CHIP_ID_BCM4313 0x4313
#define BCMA_CHIP_ID_BCM43142 43142
#define BCMA_CHIP_ID_BCM43224 43224
#define BCMA_PKG_ID_BCM43224_FAB_CSM 0x8
#define BCMA_PKG_ID_BCM43224_FAB_SMIC 0xa

55
include/linux/bcma/bcma_driver_chipcommon.h
View File

@ -330,6 +330,8 @@
#define BCMA_CC_PMU_CAP 0x0604 /* PMU capabilities */
#define BCMA_CC_PMU_CAP_REVISION 0x000000FF /* Revision mask */
#define BCMA_CC_PMU_STAT 0x0608 /* PMU status */
#define BCMA_CC_PMU_STAT_EXT_LPO_AVAIL 0x00000100
#define BCMA_CC_PMU_STAT_WDRESET 0x00000080
#define BCMA_CC_PMU_STAT_INTPEND 0x00000040 /* Interrupt pending */
#define BCMA_CC_PMU_STAT_SBCLKST 0x00000030 /* Backplane clock status? */
#define BCMA_CC_PMU_STAT_HAVEALP 0x00000008 /* ALP available */
@ -355,6 +357,11 @@
#define BCMA_CC_REGCTL_DATA 0x065C
#define BCMA_CC_PLLCTL_ADDR 0x0660
#define BCMA_CC_PLLCTL_DATA 0x0664
#define BCMA_CC_PMU_STRAPOPT 0x0668 /* (corerev >= 28) */
#define BCMA_CC_PMU_XTAL_FREQ 0x066C /* (pmurev >= 10) */
#define BCMA_CC_PMU_XTAL_FREQ_ILPCTL_MASK 0x00001FFF
#define BCMA_CC_PMU_XTAL_FREQ_MEASURE_MASK 0x80000000
#define BCMA_CC_PMU_XTAL_FREQ_MEASURE_SHIFT 31
#define BCMA_CC_SPROM 0x0800 /* SPROM beginning */
/* NAND flash MLC controller registers (corerev >= 38) */
#define BCMA_CC_NAND_REVISION 0x0C00
@ -435,6 +442,23 @@
#define BCMA_CC_PMU6_4706_PROC_NDIV_MODE_MASK 0x00000007
#define BCMA_CC_PMU6_4706_PROC_NDIV_MODE_SHIFT 0
/* PMU rev 15 */
#define BCMA_CC_PMU15_PLL_PLLCTL0 0
#define BCMA_CC_PMU15_PLL_PC0_CLKSEL_MASK 0x00000003
#define BCMA_CC_PMU15_PLL_PC0_CLKSEL_SHIFT 0
#define BCMA_CC_PMU15_PLL_PC0_FREQTGT_MASK 0x003FFFFC
#define BCMA_CC_PMU15_PLL_PC0_FREQTGT_SHIFT 2
#define BCMA_CC_PMU15_PLL_PC0_PRESCALE_MASK 0x00C00000
#define BCMA_CC_PMU15_PLL_PC0_PRESCALE_SHIFT 22
#define BCMA_CC_PMU15_PLL_PC0_KPCTRL_MASK 0x07000000
#define BCMA_CC_PMU15_PLL_PC0_KPCTRL_SHIFT 24
#define BCMA_CC_PMU15_PLL_PC0_FCNTCTRL_MASK 0x38000000
#define BCMA_CC_PMU15_PLL_PC0_FCNTCTRL_SHIFT 27
#define BCMA_CC_PMU15_PLL_PC0_FDCMODE_MASK 0x40000000
#define BCMA_CC_PMU15_PLL_PC0_FDCMODE_SHIFT 30
#define BCMA_CC_PMU15_PLL_PC0_CTRLBIAS_MASK 0x80000000
#define BCMA_CC_PMU15_PLL_PC0_CTRLBIAS_SHIFT 31
/* ALP clock on pre-PMU chips */
#define BCMA_CC_PMU_ALP_CLOCK 20000000
/* HT clock for systems with PMU-enabled chipcommon */
@ -507,6 +531,37 @@
#define BCMA_CHIPCTL_5357_I2S_PINS_ENABLE BIT(18)
#define BCMA_CHIPCTL_5357_I2CSPI_PINS_ENABLE BIT(19)
#define BCMA_RES_4314_LPLDO_PU BIT(0)
#define BCMA_RES_4314_PMU_SLEEP_DIS BIT(1)
#define BCMA_RES_4314_PMU_BG_PU BIT(2)
#define BCMA_RES_4314_CBUCK_LPOM_PU BIT(3)
#define BCMA_RES_4314_CBUCK_PFM_PU BIT(4)
#define BCMA_RES_4314_CLDO_PU BIT(5)
#define BCMA_RES_4314_LPLDO2_LVM BIT(6)
#define BCMA_RES_4314_WL_PMU_PU BIT(7)
#define BCMA_RES_4314_LNLDO_PU BIT(8)
#define BCMA_RES_4314_LDO3P3_PU BIT(9)
#define BCMA_RES_4314_OTP_PU BIT(10)
#define BCMA_RES_4314_XTAL_PU BIT(11)
#define BCMA_RES_4314_WL_PWRSW_PU BIT(12)
#define BCMA_RES_4314_LQ_AVAIL BIT(13)
#define BCMA_RES_4314_LOGIC_RET BIT(14)
#define BCMA_RES_4314_MEM_SLEEP BIT(15)
#define BCMA_RES_4314_MACPHY_RET BIT(16)
#define BCMA_RES_4314_WL_CORE_READY BIT(17)
#define BCMA_RES_4314_ILP_REQ BIT(18)
#define BCMA_RES_4314_ALP_AVAIL BIT(19)
#define BCMA_RES_4314_MISC_PWRSW_PU BIT(20)
#define BCMA_RES_4314_SYNTH_PWRSW_PU BIT(21)
#define BCMA_RES_4314_RX_PWRSW_PU BIT(22)
#define BCMA_RES_4314_RADIO_PU BIT(23)
#define BCMA_RES_4314_VCO_LDO_PU BIT(24)
#define BCMA_RES_4314_AFE_LDO_PU BIT(25)
#define BCMA_RES_4314_RX_LDO_PU BIT(26)
#define BCMA_RES_4314_TX_LDO_PU BIT(27)
#define BCMA_RES_4314_HT_AVAIL BIT(28)
#define BCMA_RES_4314_MACPHY_CLK_AVAIL BIT(29)
/* Data for the PMU, if available.
* Check availability with ((struct bcma_chipcommon)->capabilities & BCMA_CC_CAP_PMU)
*/