int mc13xxx_irq_status(struct mc13xxx *mc13xxx, int irq,
int *enabled, int *pending)
{
int ret;
unsigned int offmask = irq < 24 ? MC13XXX_IRQMASK0 : MC13XXX_IRQMASK1;
unsigned int offstat = irq < 24 ? MC13XXX_IRQSTAT0 : MC13XXX_IRQSTAT1;
u32 irqbit = 1 << (irq < 24 ? irq : irq - 24);
if (irq < 0 || irq >= MC13XXX_NUM_IRQ)
return -EINVAL;
if (enabled) {
u32 mask;
ret = mc13xxx_reg_read(mc13xxx, offmask, &mask);
if (ret)
return ret;
*enabled = mask & irqbit;
}
if (pending) {
u32 stat;
ret = mc13xxx_reg_read(mc13xxx, offstat, &stat);
if (ret)
return ret;
*pending = stat & irqbit;
}
return 0;
}
static int mc13xxx_rtc_read_time(struct device *dev, struct rtc_time *tm)
{
struct mc13xxx_rtc *priv = dev_get_drvdata(dev);
unsigned int seconds, days1, days2;
if (!priv->valid)
return -ENODATA;
do {
int ret;
ret = mc13xxx_reg_read(priv->mc13xxx, MC13XXX_RTCDAY, &days1);
if (ret)
return ret;
ret = mc13xxx_reg_read(priv->mc13xxx, MC13XXX_RTCTOD, &seconds);
if (ret)
return ret;
ret = mc13xxx_reg_read(priv->mc13xxx, MC13XXX_RTCDAY, &days2);
if (ret)
return ret;
} while (days1 != days2);
rtc_time64_to_tm((time64_t)days1 * SEC_PER_DAY + seconds, tm);
return 0;
}
/**
* If the PLL settings are in place switch the CPU core frequency to the max. value
*/
static int pcm038_power_init(void)
{
uint32_t spctl0 = get_pll_spctl10();
struct mc13xxx *mc13xxx = mc13xxx_get();
/* PLL registers already set to their final values? */
if (spctl0 == SPCTL0_VAL &&
readl(MX27_CCM_BASE_ADDR + MX27_MPCTL0) == MPCTL0_VAL) {
console_flush();
if (mc13xxx) {
mc13xxx_reg_write(mc13xxx, MC13783_REG_SWITCHERS(0),
MC13783_SWX_VOLTAGE(MC13783_SWX_VOLTAGE_1_450) |
MC13783_SWX_VOLTAGE_DVS(MC13783_SWX_VOLTAGE_1_450) |
MC13783_SWX_VOLTAGE_STANDBY(MC13783_SWX_VOLTAGE_1_450));
mc13xxx_reg_write(mc13xxx, MC13783_REG_SWITCHERS(4),
MC13783_SW1A_MODE(MC13783_SWX_MODE_NO_PULSE_SKIP) |
MC13783_SW1A_MODE_STANDBY(MC13783_SWX_MODE_NO_PULSE_SKIP) |
MC13783_SW1A_SOFTSTART |
MC13783_SW1B_MODE(MC13783_SWX_MODE_NO_PULSE_SKIP) |
MC13783_SW1B_MODE_STANDBY(MC13783_SWX_MODE_NO_PULSE_SKIP) |
MC13783_SW1B_SOFTSTART |
MC13783_SW_PLL_FACTOR(32));
/* Setup VMMC voltage */
if (IS_ENABLED(CONFIG_MCI_IMX)) {
u32 val;
mc13xxx_reg_read(mc13xxx, MC13783_REG_REG_SETTING(1), &val);
/* VMMC1 = 3.00 V */
val &= ~(7 << 6);
val |= 6 << 6;
mc13xxx_reg_write(mc13xxx, MC13783_REG_REG_SETTING(1), val);
mc13xxx_reg_read(mc13xxx, MC13783_REG_REG_MODE(1), &val);
/* Enable VMMC1 */
val |= 1 << 18;
mc13xxx_reg_write(mc13xxx, MC13783_REG_REG_MODE(1), val);
}
/* wait for required power level to run the CPU at 400 MHz */
udelay(100000);
writel(CSCR_VAL_FINAL, MX27_CCM_BASE_ADDR + MX27_CSCR);
writel(0x130410c3, MX27_CCM_BASE_ADDR + MX27_PCDR0);
writel(0x09030911, MX27_CCM_BASE_ADDR + MX27_PCDR1);
/* Clocks have changed. Notify clients */
clock_notifier_call_chain();
} else {
pr_err("Failed to initialize PMIC. Will continue with low CPU speed\n");
}
}
/* clock gating enable */
writel(0x00050f08, MX27_SYSCTRL_BASE_ADDR + MX27_GPCR);
return 0;
}
static int mc13xxx_regulator_get_voltage(struct regulator_dev *rdev)
{
struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
int ret, id = rdev_get_id(rdev);
unsigned int val;
dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id);
mc13xxx_lock(priv->mc13xxx);
ret = mc13xxx_reg_read(priv->mc13xxx,
mc13xxx_regulators[id].vsel_reg, &val);
mc13xxx_unlock(priv->mc13xxx);
if (ret)
return ret;
val = (val & mc13xxx_regulators[id].vsel_mask)
>> mc13xxx_regulators[id].vsel_shift;
dev_dbg(rdev_get_dev(rdev), "%s id: %d val: %d\n", __func__, id, val);
BUG_ON(val >= mc13xxx_regulators[id].desc.n_voltages);
return rdev->desc->volt_table[val];
}
static irqreturn_t button_irq(int irq, void *_priv)
{
struct mc13783_pwrb *priv = _priv;
int val;
mc13xxx_irq_ack(priv->mc13783, irq);
mc13xxx_reg_read(priv->mc13783, MC13783_REG_INTERRUPT_SENSE_1, &val);
switch (irq) {
case MC13783_IRQ_ONOFD1:
val = val & MC13783_IRQSENSE1_ONOFD1S ? 1 : 0;
if (priv->flags & MC13783_PWRB_B1_POL_INVERT)
val ^= 1;
input_report_key(priv->pwr, priv->keymap[0], val);
break;
case MC13783_IRQ_ONOFD2:
val = val & MC13783_IRQSENSE1_ONOFD2S ? 1 : 0;
if (priv->flags & MC13783_PWRB_B2_POL_INVERT)
val ^= 1;
input_report_key(priv->pwr, priv->keymap[1], val);
break;
case MC13783_IRQ_ONOFD3:
val = val & MC13783_IRQSENSE1_ONOFD3S ? 1 : 0;
if (priv->flags & MC13783_PWRB_B3_POL_INVERT)
val ^= 1;
input_report_key(priv->pwr, priv->keymap[2], val);
break;
}
input_sync(priv->pwr);
return IRQ_HANDLED;
}
static int mc13783_powermisc_rmw(struct mc13xxx_regulator_priv *priv, u32 mask,
u32 val)
{
struct mc13xxx *mc13783 = priv->mc13xxx;
int ret;
u32 valread;
BUG_ON(val & ~mask);
ret = mc13xxx_reg_read(mc13783, MC13783_REG_POWERMISC, &valread);
if (ret)
return ret;
/* Update the stored state for Power Gates. */
priv->powermisc_pwgt_state =
(priv->powermisc_pwgt_state & ~mask) | val;
priv->powermisc_pwgt_state &= MC13783_REG_POWERMISC_PWGTSPI_M;
/* Construct the new register value */
valread = (valread & ~mask) | val;
/* Overwrite the PWGTxEN with the stored version */
valread = (valread & ~MC13783_REG_POWERMISC_PWGTSPI_M) |
priv->powermisc_pwgt_state;
return mc13xxx_reg_write(mc13783, MC13783_REG_POWERMISC, valread);
}
static int mc13892_sw_regulator_get_voltage(struct regulator_dev *rdev)
{
struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
int ret, id = rdev_get_id(rdev);
unsigned int val, hi;
dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id);
mc13xxx_lock(priv->mc13xxx);
ret = mc13xxx_reg_read(priv->mc13xxx,
mc13892_regulators[id].vsel_reg, &val);
mc13xxx_unlock(priv->mc13xxx);
if (ret)
return ret;
hi = val & MC13892_SWITCHERS0_SWxHI;
val = (val & mc13892_regulators[id].vsel_mask)
>> mc13892_regulators[id].vsel_shift;
dev_dbg(rdev_get_dev(rdev), "%s id: %d val: %d\n", __func__, id, val);
if (hi)
val = (25000 * val) + 1100000;
else
val = (25000 * val) + 600000;
return val;
}
static int mc13xxx_rtc_read_time(struct device *dev, struct rtc_time *tm)
{
struct mc13xxx_rtc *priv = dev_get_drvdata(dev);
unsigned int seconds, days1, days2;
unsigned long s1970;
int ret;
mc13xxx_lock(priv->mc13xxx);
if (!priv->valid) {
ret = -ENODATA;
goto out;
}
ret = mc13xxx_reg_read(priv->mc13xxx, MC13XXX_RTCDAY, &days1);
if (unlikely(ret))
goto out;
ret = mc13xxx_reg_read(priv->mc13xxx, MC13XXX_RTCTOD, &seconds);
if (unlikely(ret))
goto out;
ret = mc13xxx_reg_read(priv->mc13xxx, MC13XXX_RTCDAY, &days2);
out:
mc13xxx_unlock(priv->mc13xxx);
if (ret)
return ret;
if (days2 == days1 + 1) {
if (seconds >= 86400 / 2)
days2 = days1;
else
days1 = days2;
}
if (days1 != days2)
return -EIO;
s1970 = days1 * 86400 + seconds;
rtc_time_to_tm(s1970, tm);
return rtc_valid_tm(tm);
}
static int mc13xxx_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alarm)
{
struct mc13xxx_rtc *priv = dev_get_drvdata(dev);
unsigned seconds, days;
unsigned long s1970;
int enabled, pending;
int ret;
mc13xxx_lock(priv->mc13xxx);
ret = mc13xxx_reg_read(priv->mc13xxx, MC13XXX_RTCTODA, &seconds);
if (unlikely(ret))
goto out;
if (seconds >= 86400) {
ret = -ENODATA;
goto out;
}
ret = mc13xxx_reg_read(priv->mc13xxx, MC13XXX_RTCDAY, &days);
if (unlikely(ret))
goto out;
ret = mc13xxx_irq_status(priv->mc13xxx, MC13XXX_IRQ_TODA,
&enabled, &pending);
out:
mc13xxx_unlock(priv->mc13xxx);
if (ret)
return ret;
alarm->enabled = enabled;
alarm->pending = pending;
s1970 = days * 86400 + seconds;
rtc_time_to_tm(s1970, &alarm->time);
dev_dbg(dev, "%s: %lu\n", __func__, s1970);
return 0;
}
static int mc13xxx_regulator_is_enabled(struct regulator_dev *rdev)
{
struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
int ret, id = rdev_get_id(rdev);
unsigned int val;
ret = mc13xxx_reg_read(priv->mc13xxx, mc13xxx_regulators[id].reg, &val);
if (ret)
return ret;
return (val & mc13xxx_regulators[id].enable_bit) != 0;
}
/*
* returns: number of handled irqs or negative error
* locking: holds mc13xxx->lock
*/
static int mc13xxx_irq_handle(struct mc13xxx *mc13xxx,
unsigned int offstat, unsigned int offmask, int baseirq)
{
u32 stat, mask;
int ret = mc13xxx_reg_read(mc13xxx, offstat, &stat);
int num_handled = 0;
if (ret)
return ret;
ret = mc13xxx_reg_read(mc13xxx, offmask, &mask);
if (ret)
return ret;
while (stat & ~mask) {
int irq = __ffs(stat & ~mask);
stat &= ~(1 << irq);
if (likely(mc13xxx->irqhandler[baseirq + irq])) {
irqreturn_t handled;
handled = mc13xxx_irqhandler(mc13xxx, baseirq + irq);
if (handled == IRQ_HANDLED)
num_handled++;
} else {
dev_err(mc13xxx->dev,
"BUG: irq %u but no handler\n",
baseirq + irq);
mask |= 1 << irq;
ret = mc13xxx_reg_write(mc13xxx, offmask, mask);
}
}
return num_handled;
}
static int f3s_get_rev(struct mc13xxx *mc13xxx)
{
u32 rev;
int err;
err = mc13xxx_reg_read(mc13xxx, MC13XXX_REG_IDENTIFICATION, &rev);
if (err)
return err;
if (rev == 0x00ffffff)
return -ENODEV;
return ((rev >> 6) & 0x7) ? MX35PDK_BOARD_REV_2 : MX35PDK_BOARD_REV_1;
}
static unsigned int mc13783_read(struct snd_soc_codec *codec,
unsigned int reg)
{
struct mc13783_priv *priv = snd_soc_codec_get_drvdata(codec);
unsigned int value = 0;
mc13xxx_lock(priv->mc13xxx);
mc13xxx_reg_read(priv->mc13xxx, reg, &value);
mc13xxx_unlock(priv->mc13xxx);
return value;
}
static int mc13892_sw_regulator_set_voltage(struct regulator_dev *rdev,
int min_uV, int max_uV, unsigned *selector)
{
struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
int hi, value, mask, id = rdev_get_id(rdev);
u32 valread;
int ret;
dev_dbg(rdev_get_dev(rdev), "%s id: %d min_uV: %d max_uV: %d\n",
__func__, id, min_uV, max_uV);
/* Find the best index */
value = mc13xxx_get_best_voltage_index(rdev, min_uV, max_uV);
dev_dbg(rdev_get_dev(rdev), "%s best value: %d\n", __func__, value);
if (value < 0)
return value;
value = mc13892_regulators[id].voltages[value];
mc13xxx_lock(priv->mc13xxx);
ret = mc13xxx_reg_read(priv->mc13xxx,
mc13892_regulators[id].vsel_reg, &valread);
if (ret)
goto err;
if (value > 1375000)
hi = 1;
else if (value < 1100000)
hi = 0;
else
hi = valread & MC13892_SWITCHERS0_SWxHI;
if (hi) {
value = (value - 1100000) / 25000;
value |= MC13892_SWITCHERS0_SWxHI;
} else
value = (value - 600000) / 25000;
mask = mc13892_regulators[id].vsel_mask | MC13892_SWITCHERS0_SWxHI;
valread = (valread & ~mask) |
(value << mc13892_regulators[id].vsel_shift);
ret = mc13xxx_reg_write(priv->mc13xxx, mc13892_regulators[id].vsel_reg,
valread);
err:
mc13xxx_unlock(priv->mc13xxx);
return ret;
}
static unsigned int mc13892_vcam_get_mode(struct regulator_dev *rdev)
{
struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
int ret, id = rdev_get_id(rdev);
unsigned int val;
mc13xxx_lock(priv->mc13xxx);
ret = mc13xxx_reg_read(priv->mc13xxx, mc13892_regulators[id].reg, &val);
mc13xxx_unlock(priv->mc13xxx);
if (ret)
return ret;
if (val & MC13892_REGULATORMODE1_VCAMCONFIGEN)
return REGULATOR_MODE_FAST;
return REGULATOR_MODE_NORMAL;
}
static int mc13892_gpo_regulator_is_enabled(struct regulator_dev *rdev)
{
struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
int ret, id = rdev_get_id(rdev);
unsigned int val;
mc13xxx_lock(priv->mc13xxx);
ret = mc13xxx_reg_read(priv->mc13xxx, mc13892_regulators[id].reg, &val);
mc13xxx_unlock(priv->mc13xxx);
if (ret)
return ret;
/* Power Gates state is stored in powermisc_pwgt_state
* where the meaning of bits is negated */
val = (val & ~MC13892_POWERMISC_PWGTSPI_M) |
(priv->powermisc_pwgt_state ^ MC13892_POWERMISC_PWGTSPI_M);
return (val & mc13892_regulators[id].enable_bit) != 0;
}
int mc13xxx_irq_unmask(struct mc13xxx *mc13xxx, int irq)
{
int ret;
unsigned int offmask = irq < 24 ? MC13XXX_IRQMASK0 : MC13XXX_IRQMASK1;
u32 irqbit = 1 << (irq < 24 ? irq : irq - 24);
u32 mask;
if (irq < 0 || irq >= MC13XXX_NUM_IRQ)
return -EINVAL;
ret = mc13xxx_reg_read(mc13xxx, offmask, &mask);
if (ret)
return ret;
if (!(mask & irqbit))
/* already unmasked */
return 0;
return mc13xxx_reg_write(mc13xxx, offmask, mask & ~irqbit);
}
static int mc13892_sw_regulator_get_voltage_sel(struct regulator_dev *rdev)
{
struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
int ret, id = rdev_get_id(rdev);
unsigned int val;
dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id);
mc13xxx_lock(priv->mc13xxx);
ret = mc13xxx_reg_read(priv->mc13xxx,
mc13892_regulators[id].vsel_reg, &val);
mc13xxx_unlock(priv->mc13xxx);
if (ret)
return ret;
val = (val & mc13892_regulators[id].vsel_mask)
>> mc13892_regulators[id].vsel_shift;
dev_dbg(rdev_get_dev(rdev), "%s id: %d val: %d\n", __func__, id, val);
return val;
}
static int mc13892_sw_regulator_get_voltage_sel(struct regulator_dev *rdev)
{
struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
int ret, id = rdev_get_id(rdev);
unsigned int val, selector;
dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id);
mc13xxx_lock(priv->mc13xxx);
ret = mc13xxx_reg_read(priv->mc13xxx,
mc13892_regulators[id].vsel_reg, &val);
mc13xxx_unlock(priv->mc13xxx);
if (ret)
return ret;
/*
* Figure out if the HI bit is set inside the switcher mode register
* since this means the selector value we return is at a different
* offset into the selector table.
*
* According to the MC13892 documentation note 59 (Table 47) the SW1
* buck switcher does not support output range programming therefore
* the HI bit must always remain 0. So do not do anything strange if
* our register is MC13892_SWITCHERS0.
*/
selector = val & mc13892_regulators[id].vsel_mask;
if ((mc13892_regulators[id].vsel_reg != MC13892_SWITCHERS0) &&
(val & MC13892_SWITCHERS0_SWxHI)) {
selector += MC13892_SWxHI_SEL_OFFSET;
}
dev_dbg(rdev_get_dev(rdev), "%s id: %d val: 0x%08x selector: %d\n",
__func__, id, val, selector);
return selector;
}
int mc13xxx_common_init(struct mc13xxx *mc13xxx,
struct mc13xxx_platform_data *pdata, int irq)
{
int ret;
u32 revision;
mc13xxx_lock(mc13xxx);
ret = mc13xxx_reg_read(mc13xxx, MC13XXX_REVISION, &revision);
if (ret)
goto err_revision;
mc13xxx->variant->print_revision(mc13xxx, revision);
/* mask all irqs */
ret = mc13xxx_reg_write(mc13xxx, MC13XXX_IRQMASK0, 0x00ffffff);
if (ret)
goto err_mask;
ret = mc13xxx_reg_write(mc13xxx, MC13XXX_IRQMASK1, 0x00ffffff);
if (ret)
goto err_mask;
ret = request_threaded_irq(irq, NULL, mc13xxx_irq_thread,
IRQF_ONESHOT | IRQF_TRIGGER_HIGH, "mc13xxx", mc13xxx);
if (ret) {
err_mask:
err_revision:
mc13xxx_unlock(mc13xxx);
return ret;
}
mc13xxx->irq = irq;
mc13xxx_unlock(mc13xxx);
if (mc13xxx_probe_flags_dt(mc13xxx) < 0 && pdata)
mc13xxx->flags = pdata->flags;
if (mc13xxx->flags & MC13XXX_USE_ADC)
mc13xxx_add_subdevice(mc13xxx, "%s-adc");
if (mc13xxx->flags & MC13XXX_USE_CODEC)
mc13xxx_add_subdevice_pdata(mc13xxx, "%s-codec",
pdata->codec, sizeof(*pdata->codec));
if (mc13xxx->flags & MC13XXX_USE_RTC)
mc13xxx_add_subdevice(mc13xxx, "%s-rtc");
if (mc13xxx->flags & MC13XXX_USE_TOUCHSCREEN)
mc13xxx_add_subdevice_pdata(mc13xxx, "%s-ts",
&pdata->touch, sizeof(pdata->touch));
if (pdata) {
mc13xxx_add_subdevice_pdata(mc13xxx, "%s-regulator",
&pdata->regulators, sizeof(pdata->regulators));
mc13xxx_add_subdevice_pdata(mc13xxx, "%s-led",
pdata->leds, sizeof(*pdata->leds));
mc13xxx_add_subdevice_pdata(mc13xxx, "%s-pwrbutton",
pdata->buttons, sizeof(*pdata->buttons));
} else {
mc13xxx_add_subdevice(mc13xxx, "%s-regulator");
mc13xxx_add_subdevice(mc13xxx, "%s-led");
mc13xxx_add_subdevice(mc13xxx, "%s-pwrbutton");
}
return 0;
}
static int mc13xxx_rtc_set_mmss(struct device *dev, unsigned long secs)
{
struct mc13xxx_rtc *priv = dev_get_drvdata(dev);
unsigned int seconds, days;
unsigned int alarmseconds;
int ret;
seconds = secs % 86400;
days = secs / 86400;
mc13xxx_lock(priv->mc13xxx);
/*
*/
ret = mc13xxx_reg_read(priv->mc13xxx, MC13XXX_RTCTODA, &alarmseconds);
if (unlikely(ret))
goto out;
if (alarmseconds < 86400) {
ret = mc13xxx_reg_write(priv->mc13xxx,
MC13XXX_RTCTODA, 0x1ffff);
if (unlikely(ret))
goto out;
}
/*
*/
ret = mc13xxx_reg_write(priv->mc13xxx, MC13XXX_RTCTOD, 0);
if (unlikely(ret))
goto out;
ret = mc13xxx_reg_write(priv->mc13xxx, MC13XXX_RTCDAY, days);
if (unlikely(ret))
goto out;
ret = mc13xxx_reg_write(priv->mc13xxx, MC13XXX_RTCTOD, seconds);
if (unlikely(ret))
goto out;
/* */
if (alarmseconds < 86400) {
ret = mc13xxx_reg_write(priv->mc13xxx,
MC13XXX_RTCTODA, alarmseconds);
if (unlikely(ret))
goto out;
}
ret = mc13xxx_irq_ack(priv->mc13xxx, MC13XXX_IRQ_RTCRST);
if (unlikely(ret))
goto out;
ret = mc13xxx_irq_unmask(priv->mc13xxx, MC13XXX_IRQ_RTCRST);
out:
priv->valid = !ret;
mc13xxx_unlock(priv->mc13xxx);
return ret;
}
static int __devinit mc13892_regulator_probe(struct platform_device *pdev)
{
struct mc13xxx_regulator_priv *priv;
struct mc13xxx *mc13892 = dev_get_drvdata(pdev->dev.parent);
struct mc13xxx_regulator_platform_data *pdata =
dev_get_platdata(&pdev->dev);
struct mc13xxx_regulator_init_data *init_data;
int i, ret;
u32 val;
priv = kzalloc(sizeof(*priv) +
pdata->num_regulators * sizeof(priv->regulators[0]),
GFP_KERNEL);
if (!priv)
return -ENOMEM;
priv->mc13xxx_regulators = mc13892_regulators;
priv->mc13xxx = mc13892;
mc13xxx_lock(mc13892);
ret = mc13xxx_reg_read(mc13892, MC13892_REVISION, &val);
if (ret)
goto err_free;
/* enable switch auto mode */
if ((val & 0x0000FFFF) == 0x45d0) {
ret = mc13xxx_reg_rmw(mc13892, MC13892_SWITCHERS4,
MC13892_SWITCHERS4_SW1MODE_M |
MC13892_SWITCHERS4_SW2MODE_M,
MC13892_SWITCHERS4_SW1MODE_AUTO |
MC13892_SWITCHERS4_SW2MODE_AUTO);
if (ret)
goto err_free;
ret = mc13xxx_reg_rmw(mc13892, MC13892_SWITCHERS5,
MC13892_SWITCHERS5_SW3MODE_M |
MC13892_SWITCHERS5_SW4MODE_M,
MC13892_SWITCHERS5_SW3MODE_AUTO |
MC13892_SWITCHERS5_SW4MODE_AUTO);
if (ret)
goto err_free;
}
mc13xxx_unlock(mc13892);
pax_open_kernel();
*(void **)&mc13892_regulators[MC13892_VCAM].desc.ops->set_mode
= mc13892_vcam_set_mode;
*(void **)&mc13892_regulators[MC13892_VCAM].desc.ops->get_mode
= mc13892_vcam_get_mode;
pax_close_kernel();
for (i = 0; i < pdata->num_regulators; i++) {
init_data = &pdata->regulators[i];
priv->regulators[i] = regulator_register(
&mc13892_regulators[init_data->id].desc,
&pdev->dev, init_data->init_data, priv);
if (IS_ERR(priv->regulators[i])) {
dev_err(&pdev->dev, "failed to register regulator %s\n",
mc13892_regulators[i].desc.name);
ret = PTR_ERR(priv->regulators[i]);
goto err;
}
}
platform_set_drvdata(pdev, priv);
return 0;
err:
while (--i >= 0)
regulator_unregister(priv->regulators[i]);
err_free:
mc13xxx_unlock(mc13892);
kfree(priv);
return ret;
}
static void efikamx_power_init(struct mc13xxx *mc)
{
unsigned int val;
/* Write needed to Power Gate 2 register */
mc13xxx_reg_read(mc, MC13892_REG_POWER_MISC, &val);
val &= ~MC13892_POWER_MISC_PWGT2SPIEN;
mc13xxx_reg_write(mc, MC13892_REG_POWER_MISC, val);
/* Externally powered */
mc13xxx_reg_read(mc, MC13892_REG_CHARGE, &val);
val |= MC13782_CHARGE_ICHRG0 | MC13782_CHARGE_ICHRG1 |
MC13782_CHARGE_ICHRG2 | MC13782_CHARGE_ICHRG3 |
MC13782_CHARGE_CHGAUTOB;
mc13xxx_reg_write(mc, MC13892_REG_CHARGE, val);
/* power up the system first */
mc13xxx_reg_write(mc, MC13892_REG_POWER_MISC,
MC13892_POWER_MISC_PWUP);
/* Set core voltage to 1.1V */
mc13xxx_reg_read(mc, MC13892_REG_SW_0, &val);
val &= ~MC13892_SWx_SWx_VOLT_MASK;
val |= MC13892_SWx_SWx_1_100V;
mc13xxx_reg_write(mc, MC13892_REG_SW_0, val);
/* Setup VCC (SW2) to 1.25 */
mc13xxx_reg_read(mc, MC13892_REG_SW_1, &val);
val &= ~MC13892_SWx_SWx_VOLT_MASK;
val |= MC13892_SWx_SWx_1_250V;
mc13xxx_reg_write(mc, MC13892_REG_SW_1, val);
/* Setup 1V2_DIG1 (SW3) to 1.25 */
mc13xxx_reg_read(mc, MC13892_REG_SW_2, &val);
val &= ~MC13892_SWx_SWx_VOLT_MASK;
val |= MC13892_SWx_SWx_1_250V;
mc13xxx_reg_write(mc, MC13892_REG_SW_2, val);
udelay(50);
/* Set switchers in Auto in NORMAL mode & STANDBY mode */
/* Setup the switcher mode for SW1 & SW2*/
mc13xxx_reg_read(mc, MC13892_REG_SW_4, &val);
val = (val & ~((MC13892_SWMODE_MASK << MC13892_SWMODE1_SHIFT) |
(MC13892_SWMODE_MASK << MC13892_SWMODE2_SHIFT)));
val |= (MC13892_SWMODE_AUTO_AUTO << MC13892_SWMODE1_SHIFT) |
(MC13892_SWMODE_AUTO_AUTO << MC13892_SWMODE2_SHIFT);
mc13xxx_reg_write(mc, MC13892_REG_SW_4, val);
/* Setup the switcher mode for SW3 & SW4 */
mc13xxx_reg_read(mc, MC13892_REG_SW_5, &val);
val = (val & ~((MC13892_SWMODE_MASK << MC13892_SWMODE3_SHIFT) |
(MC13892_SWMODE_MASK << MC13892_SWMODE4_SHIFT)));
val |= (MC13892_SWMODE_AUTO_AUTO << MC13892_SWMODE3_SHIFT) |
(MC13892_SWMODE_AUTO_AUTO << MC13892_SWMODE4_SHIFT);
mc13xxx_reg_write(mc, MC13892_REG_SW_5, val);
/* Set VDIG to 1.8V, VGEN3 to 1.8V, VCAM to 2.6V */
mc13xxx_reg_read(mc, MC13892_REG_SETTING_0, &val);
val &= ~(MC13892_SETTING_0_VCAM_MASK |
MC13892_SETTING_0_VGEN3_MASK |
MC13892_SETTING_0_VDIG_MASK);
val |= MC13892_SETTING_0_VDIG_1_8 |
MC13892_SETTING_0_VGEN3_1_8 |
MC13892_SETTING_0_VCAM_2_6;
mc13xxx_reg_write(mc, MC13892_REG_SETTING_0, val);
/* Set VVIDEO to 2.775V, VAUDIO to 3V, VSD to 3.15V */
mc13xxx_reg_read(mc, MC13892_REG_SETTING_1, &val);
val &= ~(MC13892_SETTING_1_VVIDEO_MASK |
MC13892_SETTING_1_VSD_MASK |
MC13892_SETTING_1_VAUDIO_MASK);
val |= MC13892_SETTING_1_VSD_3_15 |
MC13892_SETTING_1_VAUDIO_3_0 |
MC13892_SETTING_1_VVIDEO_2_775 |
MC13892_SETTING_1_VGEN1_1_2 |
MC13892_SETTING_1_VGEN2_3_15;
mc13xxx_reg_write(mc, MC13892_REG_SETTING_1, val);
/* Enable VGEN1, VGEN2, VDIG, VPLL */
mc13xxx_reg_read(mc, MC13892_REG_MODE_0, &val);
val |= MC13892_MODE_0_VGEN1EN |
MC13892_MODE_0_VDIGEN |
MC13892_MODE_0_VGEN2EN |
MC13892_MODE_0_VPLLEN;
mc13xxx_reg_write(mc, MC13892_REG_MODE_0, val);
/* Configure VGEN3 and VCAM regulators to use external PNP */
val = MC13892_MODE_1_VGEN3CONFIG |
MC13892_MODE_1_VCAMCONFIG;
mc13xxx_reg_write(mc, MC13892_REG_MODE_1, val);
udelay(200);
/* Enable VGEN3, VCAM, VAUDIO, VVIDEO, VSD regulators */
val = MC13892_MODE_1_VGEN3EN |
MC13892_MODE_1_VGEN3CONFIG |
MC13892_MODE_1_VCAMEN |
MC13892_MODE_1_VCAMCONFIG |
MC13892_MODE_1_VVIDEOEN |
MC13892_MODE_1_VAUDIOEN |
MC13892_MODE_1_VSDEN;
mc13xxx_reg_write(mc, MC13892_REG_MODE_1, val);
mc13xxx_reg_read(mc, MC13892_REG_POWER_CTL2, &val);
val |= MC13892_POWER_CONTROL_2_WDIRESET;
mc13xxx_reg_write(mc, MC13892_REG_POWER_CTL2, val);
udelay(2500);
}
static int mc13892_regulator_probe(struct platform_device *pdev)
{
struct mc13xxx_regulator_priv *priv;
struct mc13xxx *mc13892 = dev_get_drvdata(pdev->dev.parent);
struct mc13xxx_regulator_platform_data *pdata =
dev_get_platdata(&pdev->dev);
struct mc13xxx_regulator_init_data *mc13xxx_data;
struct regulator_config config = { };
int i, ret;
int num_regulators = 0;
u32 val;
num_regulators = mc13xxx_get_num_regulators_dt(pdev);
if (num_regulators <= 0 && pdata)
num_regulators = pdata->num_regulators;
if (num_regulators <= 0)
return -EINVAL;
priv = devm_kzalloc(&pdev->dev, sizeof(*priv) +
num_regulators * sizeof(priv->regulators[0]),
GFP_KERNEL);
if (!priv)
return -ENOMEM;
priv->num_regulators = num_regulators;
priv->mc13xxx_regulators = mc13892_regulators;
priv->mc13xxx = mc13892;
platform_set_drvdata(pdev, priv);
mc13xxx_lock(mc13892);
ret = mc13xxx_reg_read(mc13892, MC13892_REVISION, &val);
if (ret)
goto err_unlock;
/* enable switch auto mode (on 2.0A silicon only) */
if ((val & 0x0000FFFF) == 0x45d0) {
ret = mc13xxx_reg_rmw(mc13892, MC13892_SWITCHERS4,
MC13892_SWITCHERS4_SW1MODE_M |
MC13892_SWITCHERS4_SW2MODE_M,
MC13892_SWITCHERS4_SW1MODE_AUTO |
MC13892_SWITCHERS4_SW2MODE_AUTO);
if (ret)
goto err_unlock;
ret = mc13xxx_reg_rmw(mc13892, MC13892_SWITCHERS5,
MC13892_SWITCHERS5_SW3MODE_M |
MC13892_SWITCHERS5_SW4MODE_M,
MC13892_SWITCHERS5_SW3MODE_AUTO |
MC13892_SWITCHERS5_SW4MODE_AUTO);
if (ret)
goto err_unlock;
}
mc13xxx_unlock(mc13892);
mc13892_regulators[MC13892_VCAM].desc.ops->set_mode
= mc13892_vcam_set_mode;
mc13892_regulators[MC13892_VCAM].desc.ops->get_mode
= mc13892_vcam_get_mode;
mc13xxx_data = mc13xxx_parse_regulators_dt(pdev, mc13892_regulators,
ARRAY_SIZE(mc13892_regulators));
for (i = 0; i < priv->num_regulators; i++) {
struct regulator_init_data *init_data;
struct regulator_desc *desc;
struct device_node *node = NULL;
int id;
if (mc13xxx_data) {
id = mc13xxx_data[i].id;
init_data = mc13xxx_data[i].init_data;
node = mc13xxx_data[i].node;
} else {
id = pdata->regulators[i].id;
init_data = pdata->regulators[i].init_data;
}
desc = &mc13892_regulators[id].desc;
config.dev = &pdev->dev;
config.init_data = init_data;
config.driver_data = priv;
config.of_node = node;
priv->regulators[i] = regulator_register(desc, &config);
if (IS_ERR(priv->regulators[i])) {
dev_err(&pdev->dev, "failed to register regulator %s\n",
mc13892_regulators[i].desc.name);
ret = PTR_ERR(priv->regulators[i]);
goto err;
}
}
return 0;
err:
while (--i >= 0)
regulator_unregister(priv->regulators[i]);
return ret;
err_unlock:
mc13xxx_unlock(mc13892);
return ret;
}
int mc13xxx_common_init(struct device *dev)
{
struct mc13xxx_platform_data *pdata = dev_get_platdata(dev);
struct mc13xxx *mc13xxx = dev_get_drvdata(dev);
u32 revision;
int i, ret;
mc13xxx->dev = dev;
ret = mc13xxx_reg_read(mc13xxx, MC13XXX_REVISION, &revision);
if (ret)
return ret;
mc13xxx->variant->print_revision(mc13xxx, revision);
ret = mc13xxx_reg_rmw(mc13xxx, MC13XXX_PWRCTRL,
MC13XXX_PWRCTRL_WDIRESET, MC13XXX_PWRCTRL_WDIRESET);
if (ret)
return ret;
for (i = 0; i < ARRAY_SIZE(mc13xxx->irqs); i++) {
mc13xxx->irqs[i].reg_offset = i / MC13XXX_IRQ_PER_REG;
mc13xxx->irqs[i].mask = BIT(i % MC13XXX_IRQ_PER_REG);
}
mc13xxx->irq_chip.name = dev_name(dev);
mc13xxx->irq_chip.status_base = MC13XXX_IRQSTAT0;
mc13xxx->irq_chip.mask_base = MC13XXX_IRQMASK0;
mc13xxx->irq_chip.ack_base = MC13XXX_IRQSTAT0;
mc13xxx->irq_chip.irq_reg_stride = MC13XXX_IRQSTAT1 - MC13XXX_IRQSTAT0;
mc13xxx->irq_chip.init_ack_masked = true;
mc13xxx->irq_chip.use_ack = true;
mc13xxx->irq_chip.num_regs = MC13XXX_IRQ_REG_CNT;
mc13xxx->irq_chip.irqs = mc13xxx->irqs;
mc13xxx->irq_chip.num_irqs = ARRAY_SIZE(mc13xxx->irqs);
ret = regmap_add_irq_chip(mc13xxx->regmap, mc13xxx->irq, IRQF_ONESHOT,
0, &mc13xxx->irq_chip, &mc13xxx->irq_data);
if (ret)
return ret;
mutex_init(&mc13xxx->lock);
if (mc13xxx_probe_flags_dt(mc13xxx) < 0 && pdata)
mc13xxx->flags = pdata->flags;
if (pdata) {
mc13xxx_add_subdevice_pdata(mc13xxx, "%s-regulator",
&pdata->regulators, sizeof(pdata->regulators));
mc13xxx_add_subdevice_pdata(mc13xxx, "%s-led",
pdata->leds, sizeof(*pdata->leds));
mc13xxx_add_subdevice_pdata(mc13xxx, "%s-pwrbutton",
pdata->buttons, sizeof(*pdata->buttons));
if (mc13xxx->flags & MC13XXX_USE_CODEC)
mc13xxx_add_subdevice_pdata(mc13xxx, "%s-codec",
pdata->codec, sizeof(*pdata->codec));
if (mc13xxx->flags & MC13XXX_USE_TOUCHSCREEN)
mc13xxx_add_subdevice_pdata(mc13xxx, "%s-ts",
&pdata->touch, sizeof(pdata->touch));
} else {
mc13xxx_add_subdevice(mc13xxx, "%s-regulator");
mc13xxx_add_subdevice(mc13xxx, "%s-led");
mc13xxx_add_subdevice(mc13xxx, "%s-pwrbutton");
if (mc13xxx->flags & MC13XXX_USE_CODEC)
mc13xxx_add_subdevice(mc13xxx, "%s-codec");
if (mc13xxx->flags & MC13XXX_USE_TOUCHSCREEN)
mc13xxx_add_subdevice(mc13xxx, "%s-ts");
}
if (mc13xxx->flags & MC13XXX_USE_ADC)
mc13xxx_add_subdevice(mc13xxx, "%s-adc");
if (mc13xxx->flags & MC13XXX_USE_RTC)
mc13xxx_add_subdevice(mc13xxx, "%s-rtc");
return 0;
}
static void babbage_power_init(struct mc13xxx *mc13xxx)
{
u32 val;
/* Write needed to Power Gate 2 register */
mc13xxx_reg_read(mc13xxx, MC13892_REG_POWER_MISC, &val);
val &= ~0x10000;
mc13xxx_reg_write(mc13xxx, MC13892_REG_POWER_MISC, val);
/* Write needed to update Charger 0 */
mc13xxx_reg_write(mc13xxx, MC13892_REG_CHARGE, 0x0023807F);
/* power up the system first */
mc13xxx_reg_write(mc13xxx, MC13892_REG_POWER_MISC, 0x00200000);
if (imx_silicon_revision() < IMX_CHIP_REV_3_0) {
/* Set core voltage to 1.1V */
mc13xxx_reg_read(mc13xxx, MC13892_REG_SW_0, &val);
val &= ~0x1f;
val |= 0x14;
mc13xxx_reg_write(mc13xxx, MC13892_REG_SW_0, val);
/* Setup VCC (SW2) to 1.25 */
mc13xxx_reg_read(mc13xxx, MC13892_REG_SW_1, &val);
val &= ~0x1f;
val |= 0x1a;
mc13xxx_reg_write(mc13xxx, MC13892_REG_SW_1, val);
/* Setup 1V2_DIG1 (SW3) to 1.25 */
mc13xxx_reg_read(mc13xxx, MC13892_REG_SW_2, &val);
val &= ~0x1f;
val |= 0x1a;
mc13xxx_reg_write(mc13xxx, MC13892_REG_SW_2, val);
} else {
/* Setup VCC (SW2) to 1.225 */
mc13xxx_reg_read(mc13xxx, MC13892_REG_SW_1, &val);
val &= ~0x1f;
val |= 0x19;
mc13xxx_reg_write(mc13xxx, MC13892_REG_SW_1, val);
/* Setup 1V2_DIG1 (SW3) to 1.2 */
mc13xxx_reg_read(mc13xxx, MC13892_REG_SW_2, &val);
val &= ~0x1f;
val |= 0x18;
mc13xxx_reg_write(mc13xxx, MC13892_REG_SW_2, val);
}
if (mc13xxx_revision(mc13xxx) < MC13892_REVISION_2_0) {
/* Set switchers in PWM mode for Atlas 2.0 and lower */
/* Setup the switcher mode for SW1 & SW2*/
mc13xxx_reg_read(mc13xxx, MC13892_REG_SW_4, &val);
val &= ~0x3c0f;
val |= 0x1405;
mc13xxx_reg_write(mc13xxx, MC13892_REG_SW_4, val);
/* Setup the switcher mode for SW3 & SW4 */
mc13xxx_reg_read(mc13xxx, MC13892_REG_SW_5, &val);
val &= ~0xf0f;
val |= 0x505;
mc13xxx_reg_write(mc13xxx, MC13892_REG_SW_5, val);
} else {
/* Set switchers in Auto in NORMAL mode & STANDBY mode for Atlas 2.0a */
/* Setup the switcher mode for SW1 & SW2*/
mc13xxx_reg_read(mc13xxx, MC13892_REG_SW_4, &val);
val &= ~0x3c0f;
val |= 0x2008;
mc13xxx_reg_write(mc13xxx, MC13892_REG_SW_4, val);
/* Setup the switcher mode for SW3 & SW4 */
mc13xxx_reg_read(mc13xxx, MC13892_REG_SW_5, &val);
val &= ~0xf0f;
val |= 0x808;
mc13xxx_reg_write(mc13xxx, MC13892_REG_SW_5, val);
}
/* Set VDIG to 1.65V, VGEN3 to 1.8V, VCAM to 2.5V */
mc13xxx_reg_read(mc13xxx, MC13892_REG_SETTING_0, &val);
val &= ~0x34030;
val |= 0x10020;
mc13xxx_reg_write(mc13xxx, MC13892_REG_SETTING_0, val);
/* Set VVIDEO to 2.775V, VAUDIO to 3V, VSD to 3.15V */
mc13xxx_reg_read(mc13xxx, MC13892_REG_SETTING_1, &val);
val &= ~0x1FC;
val |= 0x1F4;
mc13xxx_reg_write(mc13xxx, MC13892_REG_SETTING_1, val);
/* Configure VGEN3 and VCAM regulators to use external PNP */
val = 0x208;
mc13xxx_reg_write(mc13xxx, MC13892_REG_MODE_1, val);
udelay(200);
/* Enable VGEN3, VCAM, VAUDIO, VVIDEO, VSD regulators */
val = 0x49249;
mc13xxx_reg_write(mc13xxx, MC13892_REG_MODE_1, val);
udelay(200);
pr_info("initialized PMIC\n");
console_flush();
imx51_init_lowlevel(800);
clock_notifier_call_chain();
}
static int mc13xxx_rtc_set_mmss(struct device *dev, time64_t secs)
{
struct mc13xxx_rtc *priv = dev_get_drvdata(dev);
unsigned int seconds, days;
unsigned int alarmseconds;
int ret;
days = div_s64_rem(secs, SEC_PER_DAY, &seconds);
mc13xxx_lock(priv->mc13xxx);
/*
* temporarily invalidate alarm to prevent triggering it when the day is
* already updated while the time isn't yet.
*/
ret = mc13xxx_reg_read(priv->mc13xxx, MC13XXX_RTCTODA, &alarmseconds);
if (unlikely(ret))
goto out;
if (alarmseconds < SEC_PER_DAY) {
ret = mc13xxx_reg_write(priv->mc13xxx,
MC13XXX_RTCTODA, 0x1ffff);
if (unlikely(ret))
goto out;
}
/*
* write seconds=0 to prevent a day switch between writing days
* and seconds below
*/
ret = mc13xxx_reg_write(priv->mc13xxx, MC13XXX_RTCTOD, 0);
if (unlikely(ret))
goto out;
ret = mc13xxx_reg_write(priv->mc13xxx, MC13XXX_RTCDAY, days);
if (unlikely(ret))
goto out;
ret = mc13xxx_reg_write(priv->mc13xxx, MC13XXX_RTCTOD, seconds);
if (unlikely(ret))
goto out;
/* restore alarm */
if (alarmseconds < SEC_PER_DAY) {
ret = mc13xxx_reg_write(priv->mc13xxx,
MC13XXX_RTCTODA, alarmseconds);
if (unlikely(ret))
goto out;
}
if (!priv->valid) {
ret = mc13xxx_irq_ack(priv->mc13xxx, MC13XXX_IRQ_RTCRST);
if (unlikely(ret))
goto out;
ret = mc13xxx_irq_unmask(priv->mc13xxx, MC13XXX_IRQ_RTCRST);
}
out:
priv->valid = !ret;
mc13xxx_unlock(priv->mc13xxx);
return ret;
}
int mc13xxx_adc_do_conversion(struct mc13xxx *mc13xxx, unsigned int mode,
unsigned int channel, u8 ato, bool atox,
unsigned int *sample)
{
u32 adc0, adc1, old_adc0;
int i, ret;
struct mc13xxx_adcdone_data adcdone_data = {
.mc13xxx = mc13xxx,
};
init_completion(&adcdone_data.done);
dev_dbg(mc13xxx->dev, "%s\n", __func__);
mc13xxx_lock(mc13xxx);
if (mc13xxx->adcflags & MC13XXX_ADC_WORKING) {
ret = -EBUSY;
goto out;
}
mc13xxx->adcflags |= MC13XXX_ADC_WORKING;
mc13xxx_reg_read(mc13xxx, MC13XXX_ADC0, &old_adc0);
adc0 = MC13XXX_ADC0_ADINC1 | MC13XXX_ADC0_ADINC2;
adc1 = MC13XXX_ADC1_ADEN | MC13XXX_ADC1_ADTRIGIGN | MC13XXX_ADC1_ASC;
if (channel > 7)
adc1 |= MC13XXX_ADC1_ADSEL;
switch (mode) {
case MC13XXX_ADC_MODE_TS:
adc0 |= MC13XXX_ADC0_ADREFEN | MC13XXX_ADC0_TSMOD0 |
MC13XXX_ADC0_TSMOD1;
adc1 |= 4 << MC13XXX_ADC1_CHAN1_SHIFT;
break;
case MC13XXX_ADC_MODE_SINGLE_CHAN:
adc0 |= old_adc0 & MC13XXX_ADC0_CONFIG_MASK;
adc1 |= (channel & 0x7) << MC13XXX_ADC1_CHAN0_SHIFT;
adc1 |= MC13XXX_ADC1_RAND;
break;
case MC13XXX_ADC_MODE_MULT_CHAN:
adc0 |= old_adc0 & MC13XXX_ADC0_CONFIG_MASK;
adc1 |= 4 << MC13XXX_ADC1_CHAN1_SHIFT;
break;
default:
mc13xxx_unlock(mc13xxx);
return -EINVAL;
}
adc1 |= ato << MC13783_ADC1_ATO_SHIFT;
if (atox)
adc1 |= MC13783_ADC1_ATOX;
dev_dbg(mc13xxx->dev, "%s: request irq\n", __func__);
mc13xxx_irq_request(mc13xxx, MC13XXX_IRQ_ADCDONE,
mc13xxx_handler_adcdone, __func__, &adcdone_data);
mc13xxx_irq_ack(mc13xxx, MC13XXX_IRQ_ADCDONE);
mc13xxx_reg_write(mc13xxx, MC13XXX_ADC0, adc0);
mc13xxx_reg_write(mc13xxx, MC13XXX_ADC1, adc1);
mc13xxx_unlock(mc13xxx);
ret = wait_for_completion_interruptible_timeout(&adcdone_data.done, HZ);
if (!ret)
ret = -ETIMEDOUT;
mc13xxx_lock(mc13xxx);
mc13xxx_irq_free(mc13xxx, MC13XXX_IRQ_ADCDONE, &adcdone_data);
if (ret > 0)
for (i = 0; i < 4; ++i) {
ret = mc13xxx_reg_read(mc13xxx,
MC13XXX_ADC2, &sample[i]);
if (ret)
break;
}
if (mode == MC13XXX_ADC_MODE_TS)
/* restore TSMOD */
mc13xxx_reg_write(mc13xxx, MC13XXX_ADC0, old_adc0);
mc13xxx->adcflags &= ~MC13XXX_ADC_WORKING;
out:
mc13xxx_unlock(mc13xxx);
return ret;
}
static int loco_late_init(void)
{
struct mc13xxx *mc34708;
int rev;
if (!of_machine_is_compatible("fsl,imx53-qsb") &&
!of_machine_is_compatible("fsl,imx53-qsrb"))
return 0;
mc34708 = mc13xxx_get();
if (mc34708) {
unsigned int val;
int ret;
/* get the board revision from fuse */
rev = readl(MX53_IIM_BASE_ADDR + 0x878);
set_board_rev(rev);
printf("MCIMX53-START-R board 1.0 rev %c\n", (rev == 1) ? 'A' : 'B' );
barebox_set_hostname("loco-r");
armlinux_set_revision(loco_system_rev);
/* Set VDDGP to 1.25V for 1GHz on SW1 */
mc13xxx_reg_read(mc34708, MC13892_REG_SW_0, &val);
val = (val & ~SWx_VOLT_MASK_MC34708) | SWx_1_250V_MC34708;
ret = mc13xxx_reg_write(mc34708, MC13892_REG_SW_0, val);
if (ret) {
printf("Writing to REG_SW_0 failed: %d\n", ret);
return ret;
}
/* Set VCC as 1.30V on SW2 */
mc13xxx_reg_read(mc34708, MC13892_REG_SW_1, &val);
val = (val & ~SWx_VOLT_MASK_MC34708) | SWx_1_300V_MC34708;
ret = mc13xxx_reg_write(mc34708, MC13892_REG_SW_1, val);
if (ret) {
printf("Writing to REG_SW_1 failed: %d\n", ret);
return ret;
}
/* Set global reset timer to 4s */
mc13xxx_reg_read(mc34708, MC13892_REG_POWER_CTL2, &val);
val = (val & ~TIMER_MASK_MC34708) | TIMER_4S_MC34708;
ret = mc13xxx_reg_write(mc34708, MC13892_REG_POWER_CTL2, val);
if (ret) {
printf("Writing to REG_POWER_CTL2 failed: %d\n", ret);
return ret;
}
/* Set VUSBSEL and VUSBEN for USB PHY supply*/
mc13xxx_reg_read(mc34708, MC13892_REG_MODE_0, &val);
val |= (VUSBSEL_MC34708 | VUSBEN_MC34708);
ret = mc13xxx_reg_write(mc34708, MC13892_REG_MODE_0, val);
if (ret) {
printf("Writing to REG_MODE_0 failed: %d\n", ret);
return ret;
}
/* Set SWBST to 5V in auto mode */
val = SWBST_AUTO;
ret = mc13xxx_reg_write(mc34708, SWBST_CTRL, val);
if (ret) {
printf("Writing to SWBST_CTRL failed: %d\n", ret);
return ret;
}
} else {
/* so we have a DA9053 based board */
printf("MCIMX53-START board 1.0\n");
barebox_set_hostname("loco");
armlinux_set_revision(loco_system_rev);
}
/* USB PWR enable */
gpio_direction_output(MX53_LOCO_USB_PWREN, 0);
gpio_set_value(MX53_LOCO_USB_PWREN, 1);
loco_fec_reset();
set_silicon_rev(imx_silicon_revision());
armlinux_set_architecture(MACH_TYPE_MX53_LOCO);
imx53_bbu_internal_mmc_register_handler("mmc", "/dev/mmc0",
BBU_HANDLER_FLAG_DEFAULT);
return 0;
}
static void babbage_power_init(void)
{
struct mc13xxx *mc13xxx;
u32 val;
mc13xxx = mc13xxx_get();
if (!mc13xxx) {
printf("could not get PMIC\n");
return;
}
/* Write needed to Power Gate 2 register */
mc13xxx_reg_read(mc13xxx, MC13892_REG_POWER_MISC, &val);
val &= ~0x10000;
mc13xxx_reg_write(mc13xxx, MC13892_REG_POWER_MISC, val);
/* Write needed to update Charger 0 */
mc13xxx_reg_write(mc13xxx, MC13892_REG_CHARGE, 0x0023807F);
/* power up the system first */
mc13xxx_reg_write(mc13xxx, MC13892_REG_POWER_MISC, 0x00200000);
if (imx_silicon_revision() < IMX_CHIP_REV_3_0) {
/* Set core voltage to 1.1V */
mc13xxx_reg_read(mc13xxx, MC13892_REG_SW_0, &val);
val &= ~0x1f;
val |= 0x14;
mc13xxx_reg_write(mc13xxx, MC13892_REG_SW_0, val);
/* Setup VCC (SW2) to 1.25 */
mc13xxx_reg_read(mc13xxx, MC13892_REG_SW_1, &val);
val &= ~0x1f;
val |= 0x1a;
mc13xxx_reg_write(mc13xxx, MC13892_REG_SW_1, val);
/* Setup 1V2_DIG1 (SW3) to 1.25 */
mc13xxx_reg_read(mc13xxx, MC13892_REG_SW_2, &val);
val &= ~0x1f;
val |= 0x1a;
mc13xxx_reg_write(mc13xxx, MC13892_REG_SW_2, val);
} else {
/* Setup VCC (SW2) to 1.225 */
mc13xxx_reg_read(mc13xxx, MC13892_REG_SW_1, &val);
val &= ~0x1f;
val |= 0x19;
mc13xxx_reg_write(mc13xxx, MC13892_REG_SW_1, val);
/* Setup 1V2_DIG1 (SW3) to 1.2 */
mc13xxx_reg_read(mc13xxx, MC13892_REG_SW_2, &val);
val &= ~0x1f;
val |= 0x18;
mc13xxx_reg_write(mc13xxx, MC13892_REG_SW_2, val);
}
if (mc13xxx_revision(mc13xxx) < MC13892_REVISION_2_0) {
/* Set switchers in PWM mode for Atlas 2.0 and lower */
/* Setup the switcher mode for SW1 & SW2*/
mc13xxx_reg_read(mc13xxx, MC13892_REG_SW_4, &val);
val &= ~0x3c0f;
val |= 0x1405;
mc13xxx_reg_write(mc13xxx, MC13892_REG_SW_4, val);
/* Setup the switcher mode for SW3 & SW4 */
mc13xxx_reg_read(mc13xxx, MC13892_REG_SW_5, &val);
val &= ~0xf0f;
val |= 0x505;
mc13xxx_reg_write(mc13xxx, MC13892_REG_SW_5, val);
} else {
/* Set switchers in Auto in NORMAL mode & STANDBY mode for Atlas 2.0a */
/* Setup the switcher mode for SW1 & SW2*/
mc13xxx_reg_read(mc13xxx, MC13892_REG_SW_4, &val);
val &= ~0x3c0f;
val |= 0x2008;
mc13xxx_reg_write(mc13xxx, MC13892_REG_SW_4, val);
/* Setup the switcher mode for SW3 & SW4 */
mc13xxx_reg_read(mc13xxx, MC13892_REG_SW_5, &val);
val &= ~0xf0f;
val |= 0x808;
mc13xxx_reg_write(mc13xxx, MC13892_REG_SW_5, val);
}
/* Set VDIG to 1.65V, VGEN3 to 1.8V, VCAM to 2.5V */
mc13xxx_reg_read(mc13xxx, MC13892_REG_SETTING_0, &val);
val &= ~0x34030;
val |= 0x10020;
mc13xxx_reg_write(mc13xxx, MC13892_REG_SETTING_0, val);
/* Set VVIDEO to 2.775V, VAUDIO to 3V, VSD to 3.15V */
mc13xxx_reg_read(mc13xxx, MC13892_REG_SETTING_1, &val);
val &= ~0x1FC;
val |= 0x1F4;
mc13xxx_reg_write(mc13xxx, MC13892_REG_SETTING_1, val);
/* Configure VGEN3 and VCAM regulators to use external PNP */
val = 0x208;
mc13xxx_reg_write(mc13xxx, MC13892_REG_MODE_1, val);
udelay(200);
#define GPIO_LAN8700_RESET (1 * 32 + 14)
/* Reset the ethernet controller over GPIO */
gpio_direction_output(GPIO_LAN8700_RESET, 0);
/* Enable VGEN3, VCAM, VAUDIO, VVIDEO, VSD regulators */
val = 0x49249;
mc13xxx_reg_write(mc13xxx, MC13892_REG_MODE_1, val);
udelay(200);
gpio_set_value(GPIO_LAN8700_RESET, 1);
mdelay(50);
}
