#include <asm/io.h>
#include <asm/arch/imx-regs.h>
-#include "mx28_init.h"
+#include "mxs_init.h"
-void mx28_power_clock2xtal(void)
+static void mxs_power_clock2xtal(void)
{
- struct mx28_clkctrl_regs *clkctrl_regs =
- (struct mx28_clkctrl_regs *)MXS_CLKCTRL_BASE;
+ struct mxs_clkctrl_regs *clkctrl_regs =
+ (struct mxs_clkctrl_regs *)MXS_CLKCTRL_BASE;
/* Set XTAL as CPU reference clock */
writel(CLKCTRL_CLKSEQ_BYPASS_CPU,
&clkctrl_regs->hw_clkctrl_clkseq_set);
}
-void mx28_power_clock2pll(void)
+static void mxs_power_clock2pll(void)
{
- struct mx28_clkctrl_regs *clkctrl_regs =
- (struct mx28_clkctrl_regs *)MXS_CLKCTRL_BASE;
+ struct mxs_clkctrl_regs *clkctrl_regs =
+ (struct mxs_clkctrl_regs *)MXS_CLKCTRL_BASE;
setbits_le32(&clkctrl_regs->hw_clkctrl_pll0ctrl0,
CLKCTRL_PLL0CTRL0_POWER);
CLKCTRL_CLKSEQ_BYPASS_CPU);
}
-void mx28_power_clear_auto_restart(void)
+static void mxs_power_clear_auto_restart(void)
{
- struct mx28_rtc_regs *rtc_regs =
- (struct mx28_rtc_regs *)MXS_RTC_BASE;
+ struct mxs_rtc_regs *rtc_regs =
+ (struct mxs_rtc_regs *)MXS_RTC_BASE;
writel(RTC_CTRL_SFTRST, &rtc_regs->hw_rtc_ctrl_clr);
while (readl(&rtc_regs->hw_rtc_ctrl) & RTC_CTRL_SFTRST)
;
}
-void mx28_power_set_linreg(void)
+static void mxs_power_set_linreg(void)
{
- struct mx28_power_regs *power_regs =
- (struct mx28_power_regs *)MXS_POWER_BASE;
+ struct mxs_power_regs *power_regs =
+ (struct mxs_power_regs *)MXS_POWER_BASE;
/* Set linear regulator 25mV below switching converter */
clrsetbits_le32(&power_regs->hw_power_vdddctrl,
POWER_VDDIOCTRL_LINREG_OFFSET_1STEPS_BELOW);
}
-int mx28_get_batt_volt(void)
+static int mxs_get_batt_volt(void)
{
- struct mx28_power_regs *power_regs =
- (struct mx28_power_regs *)MXS_POWER_BASE;
+ struct mxs_power_regs *power_regs =
+ (struct mxs_power_regs *)MXS_POWER_BASE;
uint32_t volt = readl(&power_regs->hw_power_battmonitor);
volt &= POWER_BATTMONITOR_BATT_VAL_MASK;
volt >>= POWER_BATTMONITOR_BATT_VAL_OFFSET;
return volt;
}
-int mx28_is_batt_ready(void)
+static int mxs_is_batt_ready(void)
{
- return (mx28_get_batt_volt() >= 3600);
+ return (mxs_get_batt_volt() >= 3600);
}
-int mx28_is_batt_good(void)
+static int mxs_is_batt_good(void)
{
- struct mx28_power_regs *power_regs =
- (struct mx28_power_regs *)MXS_POWER_BASE;
- uint32_t volt = mx28_get_batt_volt();
+ struct mxs_power_regs *power_regs =
+ (struct mxs_power_regs *)MXS_POWER_BASE;
+ uint32_t volt = mxs_get_batt_volt();
if ((volt >= 2400) && (volt <= 4300))
return 1;
early_delay(500000);
- volt = mx28_get_batt_volt();
+ volt = mxs_get_batt_volt();
if (volt >= 3500)
return 0;
return 0;
}
-void mx28_power_setup_5v_detect(void)
+static void mxs_power_setup_5v_detect(void)
{
- struct mx28_power_regs *power_regs =
- (struct mx28_power_regs *)MXS_POWER_BASE;
+ struct mxs_power_regs *power_regs =
+ (struct mxs_power_regs *)MXS_POWER_BASE;
/* Start 5V detection */
clrsetbits_le32(&power_regs->hw_power_5vctrl,
POWER_5VCTRL_PWRUP_VBUS_CMPS);
}
-void mx28_src_power_init(void)
+static void mxs_src_power_init(void)
{
- struct mx28_power_regs *power_regs =
- (struct mx28_power_regs *)MXS_POWER_BASE;
+ struct mxs_power_regs *power_regs =
+ (struct mxs_power_regs *)MXS_POWER_BASE;
/* Improve efficieny and reduce transient ripple */
writel(POWER_LOOPCTRL_TOGGLE_DIF | POWER_LOOPCTRL_EN_CM_HYST |
clrbits_le32(&power_regs->hw_power_5vctrl, POWER_5VCTRL_DCDC_XFER);
}
-void mx28_power_init_4p2_params(void)
+static void mxs_power_init_4p2_params(void)
{
- struct mx28_power_regs *power_regs =
- (struct mx28_power_regs *)MXS_POWER_BASE;
+ struct mxs_power_regs *power_regs =
+ (struct mxs_power_regs *)MXS_POWER_BASE;
/* Setup 4P2 parameters */
clrsetbits_le32(&power_regs->hw_power_dcdc4p2,
0x3f << POWER_5VCTRL_CHARGE_4P2_ILIMIT_OFFSET);
}
-void mx28_enable_4p2_dcdc_input(int xfer)
+static void mxs_enable_4p2_dcdc_input(int xfer)
{
- struct mx28_power_regs *power_regs =
- (struct mx28_power_regs *)MXS_POWER_BASE;
+ struct mxs_power_regs *power_regs =
+ (struct mxs_power_regs *)MXS_POWER_BASE;
uint32_t tmp, vbus_thresh, vbus_5vdetect, pwd_bo;
uint32_t prev_5v_brnout, prev_5v_droop;
POWER_CTRL_ENIRQ_VDD5V_DROOP);
}
-void mx28_power_init_4p2_regulator(void)
+static void mxs_power_init_4p2_regulator(void)
{
- struct mx28_power_regs *power_regs =
- (struct mx28_power_regs *)MXS_POWER_BASE;
+ struct mxs_power_regs *power_regs =
+ (struct mxs_power_regs *)MXS_POWER_BASE;
uint32_t tmp, tmp2;
setbits_le32(&power_regs->hw_power_dcdc4p2, POWER_DCDC4P2_ENABLE_4P2);
* gradually to avoid large inrush current from the 5V cable which can
* cause transients/problems
*/
- mx28_enable_4p2_dcdc_input(0);
+ mxs_enable_4p2_dcdc_input(0);
if (readl(&power_regs->hw_power_ctrl) & POWER_CTRL_VBUS_VALID_IRQ) {
/*
writel(POWER_CTRL_DCDC4P2_BO_IRQ, &power_regs->hw_power_ctrl_clr);
}
-void mx28_power_init_dcdc_4p2_source(void)
+static void mxs_power_init_dcdc_4p2_source(void)
{
- struct mx28_power_regs *power_regs =
- (struct mx28_power_regs *)MXS_POWER_BASE;
+ struct mxs_power_regs *power_regs =
+ (struct mxs_power_regs *)MXS_POWER_BASE;
if (!(readl(&power_regs->hw_power_dcdc4p2) &
POWER_DCDC4P2_ENABLE_DCDC)) {
hang();
}
- mx28_enable_4p2_dcdc_input(1);
+ mxs_enable_4p2_dcdc_input(1);
if (readl(&power_regs->hw_power_ctrl) & POWER_CTRL_VBUS_VALID_IRQ) {
clrbits_le32(&power_regs->hw_power_dcdc4p2,
}
}
-void mx28_power_enable_4p2(void)
+static void mxs_power_enable_4p2(void)
{
- struct mx28_power_regs *power_regs =
- (struct mx28_power_regs *)MXS_POWER_BASE;
+ struct mxs_power_regs *power_regs =
+ (struct mxs_power_regs *)MXS_POWER_BASE;
uint32_t vdddctrl, vddactrl, vddioctrl;
uint32_t tmp;
setbits_le32(&power_regs->hw_power_vddioctrl,
POWER_VDDIOCTRL_DISABLE_FET | POWER_VDDIOCTRL_PWDN_BRNOUT);
- mx28_power_init_4p2_params();
- mx28_power_init_4p2_regulator();
+ mxs_power_init_4p2_params();
+ mxs_power_init_4p2_regulator();
/* Shutdown battery (none present) */
- if (!mx28_is_batt_ready()) {
+ if (!mxs_is_batt_ready()) {
clrbits_le32(&power_regs->hw_power_dcdc4p2,
POWER_DCDC4P2_BO_MASK);
writel(POWER_CTRL_DCDC4P2_BO_IRQ,
&power_regs->hw_power_ctrl_clr);
}
- mx28_power_init_dcdc_4p2_source();
+ mxs_power_init_dcdc_4p2_source();
writel(vdddctrl, &power_regs->hw_power_vdddctrl);
early_delay(20);
&power_regs->hw_power_charge_clr);
}
-void mx28_boot_valid_5v(void)
+static void mxs_boot_valid_5v(void)
{
- struct mx28_power_regs *power_regs =
- (struct mx28_power_regs *)MXS_POWER_BASE;
+ struct mxs_power_regs *power_regs =
+ (struct mxs_power_regs *)MXS_POWER_BASE;
/*
* Use VBUSVALID level instead of VDD5V_GT_VDDIO level to trigger a 5V
writel(POWER_CTRL_VBUS_VALID_IRQ | POWER_CTRL_VDD5V_GT_VDDIO_IRQ,
&power_regs->hw_power_ctrl_clr);
- mx28_power_enable_4p2();
+ mxs_power_enable_4p2();
}
-void mx28_powerdown(void)
+static void mxs_powerdown(void)
{
- struct mx28_power_regs *power_regs =
- (struct mx28_power_regs *)MXS_POWER_BASE;
+ struct mxs_power_regs *power_regs =
+ (struct mxs_power_regs *)MXS_POWER_BASE;
writel(POWER_RESET_UNLOCK_KEY, &power_regs->hw_power_reset);
writel(POWER_RESET_UNLOCK_KEY | POWER_RESET_PWD_OFF,
&power_regs->hw_power_reset);
}
-void mx28_batt_boot(void)
+static void mxs_batt_boot(void)
{
- struct mx28_power_regs *power_regs =
- (struct mx28_power_regs *)MXS_POWER_BASE;
+ struct mxs_power_regs *power_regs =
+ (struct mxs_power_regs *)MXS_POWER_BASE;
clrbits_le32(&power_regs->hw_power_5vctrl, POWER_5VCTRL_PWDN_5VBRNOUT);
clrbits_le32(&power_regs->hw_power_5vctrl, POWER_5VCTRL_ENABLE_DCDC);
clrsetbits_le32(&power_regs->hw_power_minpwr,
POWER_MINPWR_HALFFETS, POWER_MINPWR_DOUBLE_FETS);
- mx28_power_set_linreg();
+ mxs_power_set_linreg();
clrbits_le32(&power_regs->hw_power_vdddctrl,
POWER_VDDDCTRL_DISABLE_FET | POWER_VDDDCTRL_ENABLE_LINREG);
0x8 << POWER_5VCTRL_CHARGE_4P2_ILIMIT_OFFSET);
}
-void mx28_handle_5v_conflict(void)
+static void mxs_handle_5v_conflict(void)
{
- struct mx28_power_regs *power_regs =
- (struct mx28_power_regs *)MXS_POWER_BASE;
+ struct mxs_power_regs *power_regs =
+ (struct mxs_power_regs *)MXS_POWER_BASE;
uint32_t tmp;
setbits_le32(&power_regs->hw_power_vddioctrl,
tmp = readl(&power_regs->hw_power_sts);
if (tmp & POWER_STS_VDDIO_BO) {
- mx28_powerdown();
+ /*
+ * VDDIO has a brownout, then the VDD5V_GT_VDDIO becomes
+ * unreliable
+ */
+ mxs_powerdown();
break;
}
if (tmp & POWER_STS_VDD5V_GT_VDDIO) {
- mx28_boot_valid_5v();
+ mxs_boot_valid_5v();
break;
} else {
- mx28_powerdown();
+ mxs_powerdown();
break;
}
if (tmp & POWER_STS_PSWITCH_MASK) {
- mx28_batt_boot();
+ mxs_batt_boot();
break;
}
}
}
-void mx28_5v_boot(void)
+static void mxs_5v_boot(void)
{
- struct mx28_power_regs *power_regs =
- (struct mx28_power_regs *)MXS_POWER_BASE;
+ struct mxs_power_regs *power_regs =
+ (struct mxs_power_regs *)MXS_POWER_BASE;
/*
* NOTE: In original IMX-Bootlets, this also checks for VBUSVALID,
* but their implementation always returns 1 so we omit it here.
*/
if (readl(&power_regs->hw_power_sts) & POWER_STS_VDD5V_GT_VDDIO) {
- mx28_boot_valid_5v();
+ mxs_boot_valid_5v();
return;
}
early_delay(1000);
if (readl(&power_regs->hw_power_sts) & POWER_STS_VDD5V_GT_VDDIO) {
- mx28_boot_valid_5v();
+ mxs_boot_valid_5v();
return;
}
- mx28_handle_5v_conflict();
+ mxs_handle_5v_conflict();
}
-void mx28_init_batt_bo(void)
+static void mxs_init_batt_bo(void)
{
- struct mx28_power_regs *power_regs =
- (struct mx28_power_regs *)MXS_POWER_BASE;
+ struct mxs_power_regs *power_regs =
+ (struct mxs_power_regs *)MXS_POWER_BASE;
/* Brownout at 3V */
clrsetbits_le32(&power_regs->hw_power_battmonitor,
writel(POWER_CTRL_ENIRQ_BATT_BO, &power_regs->hw_power_ctrl_clr);
}
-void mx28_switch_vddd_to_dcdc_source(void)
+static void mxs_switch_vddd_to_dcdc_source(void)
{
- struct mx28_power_regs *power_regs =
- (struct mx28_power_regs *)MXS_POWER_BASE;
+ struct mxs_power_regs *power_regs =
+ (struct mxs_power_regs *)MXS_POWER_BASE;
clrsetbits_le32(&power_regs->hw_power_vdddctrl,
POWER_VDDDCTRL_LINREG_OFFSET_MASK,
POWER_VDDDCTRL_DISABLE_STEPPING);
}
-void mx28_power_configure_power_source(void)
+static void mxs_power_configure_power_source(void)
{
int batt_ready, batt_good;
- struct mx28_power_regs *power_regs =
- (struct mx28_power_regs *)MXS_POWER_BASE;
- struct mx28_lradc_regs *lradc_regs =
- (struct mx28_lradc_regs *)MXS_LRADC_BASE;
+ struct mxs_power_regs *power_regs =
+ (struct mxs_power_regs *)MXS_POWER_BASE;
+ struct mxs_lradc_regs *lradc_regs =
+ (struct mxs_lradc_regs *)MXS_LRADC_BASE;
- mx28_src_power_init();
-
- batt_ready = mx28_is_batt_ready();
+ mxs_src_power_init();
if (readl(&power_regs->hw_power_sts) & POWER_STS_VDD5V_GT_VDDIO) {
- batt_good = mx28_is_batt_good();
+ batt_ready = mxs_is_batt_ready();
if (batt_ready) {
/* 5V source detected, good battery detected. */
- mx28_batt_boot();
+ mxs_batt_boot();
} else {
- if (batt_good) {
- /* 5V source detected, low battery detceted. */
- } else {
+ batt_good = mxs_is_batt_good();
+ if (!batt_good) {
/* 5V source detected, bad battery detected. */
writel(LRADC_CONVERSION_AUTOMATIC,
&lradc_regs->hw_lradc_conversion_clr);
clrbits_le32(&power_regs->hw_power_battmonitor,
POWER_BATTMONITOR_BATT_VAL_MASK);
}
- mx28_5v_boot();
+ mxs_5v_boot();
}
} else {
/* 5V not detected, booting from battery. */
- mx28_batt_boot();
+ mxs_batt_boot();
}
- mx28_power_clock2pll();
+ mxs_power_clock2pll();
- mx28_init_batt_bo();
+ mxs_init_batt_bo();
- mx28_switch_vddd_to_dcdc_source();
+ mxs_switch_vddd_to_dcdc_source();
}
-void mx28_enable_output_rail_protection(void)
+static void mxs_enable_output_rail_protection(void)
{
- struct mx28_power_regs *power_regs =
- (struct mx28_power_regs *)MXS_POWER_BASE;
+ struct mxs_power_regs *power_regs =
+ (struct mxs_power_regs *)MXS_POWER_BASE;
writel(POWER_CTRL_VDDD_BO_IRQ | POWER_CTRL_VDDA_BO_IRQ |
POWER_CTRL_VDDIO_BO_IRQ, &power_regs->hw_power_ctrl_clr);
POWER_VDDIOCTRL_PWDN_BRNOUT);
}
-int mx28_get_vddio_power_source_off(void)
+static int mxs_get_vddio_power_source_off(void)
{
- struct mx28_power_regs *power_regs =
- (struct mx28_power_regs *)MXS_POWER_BASE;
+ struct mxs_power_regs *power_regs =
+ (struct mxs_power_regs *)MXS_POWER_BASE;
uint32_t tmp;
if (readl(&power_regs->hw_power_sts) & POWER_STS_VDD5V_GT_VDDIO) {
tmp = readl(&power_regs->hw_power_vddioctrl);
if (tmp & POWER_VDDIOCTRL_DISABLE_FET) {
if ((tmp & POWER_VDDIOCTRL_LINREG_OFFSET_MASK) ==
- POWER_VDDDCTRL_LINREG_OFFSET_0STEPS) {
+ POWER_VDDIOCTRL_LINREG_OFFSET_0STEPS) {
return 1;
}
}
if (!(readl(&power_regs->hw_power_5vctrl) &
POWER_5VCTRL_ENABLE_DCDC)) {
if ((tmp & POWER_VDDIOCTRL_LINREG_OFFSET_MASK) ==
- POWER_VDDDCTRL_LINREG_OFFSET_0STEPS) {
+ POWER_VDDIOCTRL_LINREG_OFFSET_0STEPS) {
return 1;
}
}
}
-int mx28_get_vddd_power_source_off(void)
+static int mxs_get_vddd_power_source_off(void)
{
- struct mx28_power_regs *power_regs =
- (struct mx28_power_regs *)MXS_POWER_BASE;
+ struct mxs_power_regs *power_regs =
+ (struct mxs_power_regs *)MXS_POWER_BASE;
uint32_t tmp;
tmp = readl(&power_regs->hw_power_vdddctrl);
return 0;
}
-void mx28_power_set_vddio(uint32_t new_target, uint32_t new_brownout)
+struct mxs_vddx_cfg {
+ uint32_t *reg;
+ uint8_t step_mV;
+ uint16_t lowest_mV;
+ int (*powered_by_linreg)(void);
+ uint32_t trg_mask;
+ uint32_t bo_irq;
+ uint32_t bo_enirq;
+ uint32_t bo_offset_mask;
+ uint32_t bo_offset_offset;
+};
+
+static const struct mxs_vddx_cfg mxs_vddio_cfg = {
+ .reg = &(((struct mxs_power_regs *)MXS_POWER_BASE)->
+ hw_power_vddioctrl),
+ .step_mV = 50,
+ .lowest_mV = 2800,
+ .powered_by_linreg = mxs_get_vddio_power_source_off,
+ .trg_mask = POWER_VDDIOCTRL_TRG_MASK,
+ .bo_irq = POWER_CTRL_VDDIO_BO_IRQ,
+ .bo_enirq = POWER_CTRL_ENIRQ_VDDIO_BO,
+ .bo_offset_mask = POWER_VDDIOCTRL_BO_OFFSET_MASK,
+ .bo_offset_offset = POWER_VDDIOCTRL_BO_OFFSET_OFFSET,
+};
+
+static const struct mxs_vddx_cfg mxs_vddd_cfg = {
+ .reg = &(((struct mxs_power_regs *)MXS_POWER_BASE)->
+ hw_power_vdddctrl),
+ .step_mV = 25,
+ .lowest_mV = 800,
+ .powered_by_linreg = mxs_get_vddd_power_source_off,
+ .trg_mask = POWER_VDDDCTRL_TRG_MASK,
+ .bo_irq = POWER_CTRL_VDDD_BO_IRQ,
+ .bo_enirq = POWER_CTRL_ENIRQ_VDDD_BO,
+ .bo_offset_mask = POWER_VDDDCTRL_BO_OFFSET_MASK,
+ .bo_offset_offset = POWER_VDDDCTRL_BO_OFFSET_OFFSET,
+};
+
+static void mxs_power_set_vddx(const struct mxs_vddx_cfg *cfg,
+ uint32_t new_target, uint32_t new_brownout)
{
- struct mx28_power_regs *power_regs =
- (struct mx28_power_regs *)MXS_POWER_BASE;
+ struct mxs_power_regs *power_regs =
+ (struct mxs_power_regs *)MXS_POWER_BASE;
uint32_t cur_target, diff, bo_int = 0;
uint32_t powered_by_linreg = 0;
+ int adjust_up, tmp;
- new_brownout = new_target - new_brownout;
+ new_brownout = DIV_ROUND(new_target - new_brownout, cfg->step_mV);
- cur_target = readl(&power_regs->hw_power_vddioctrl);
- cur_target &= POWER_VDDIOCTRL_TRG_MASK;
- cur_target *= 50; /* 50 mV step*/
- cur_target += 2800; /* 2800 mV lowest */
+ cur_target = readl(cfg->reg);
+ cur_target &= cfg->trg_mask;
+ cur_target *= cfg->step_mV;
+ cur_target += cfg->lowest_mV;
- powered_by_linreg = mx28_get_vddio_power_source_off();
- if (new_target > cur_target) {
+ adjust_up = new_target > cur_target;
+ powered_by_linreg = cfg->powered_by_linreg();
+ if (adjust_up) {
if (powered_by_linreg) {
- bo_int = readl(&power_regs->hw_power_vddioctrl);
- clrbits_le32(&power_regs->hw_power_vddioctrl,
- POWER_CTRL_ENIRQ_VDDIO_BO);
+ bo_int = readl(cfg->reg);
+ clrbits_le32(cfg->reg, cfg->bo_enirq);
}
+ setbits_le32(cfg->reg, cfg->bo_offset_mask);
+ }
- setbits_le32(&power_regs->hw_power_vddioctrl,
- POWER_VDDIOCTRL_BO_OFFSET_MASK);
- do {
- if (new_target - cur_target > 100)
+ do {
+ if (abs(new_target - cur_target) > 100) {
+ if (adjust_up)
diff = cur_target + 100;
else
- diff = new_target;
-
- diff -= 2800;
- diff /= 50;
-
- clrsetbits_le32(&power_regs->hw_power_vddioctrl,
- POWER_VDDIOCTRL_TRG_MASK, diff);
-
- if (powered_by_linreg ||
- (readl(&power_regs->hw_power_sts) &
- POWER_STS_VDD5V_GT_VDDIO))
- early_delay(500);
- else {
- while (!(readl(&power_regs->hw_power_sts) &
- POWER_STS_DC_OK))
- ;
-
- }
-
- cur_target = readl(&power_regs->hw_power_vddioctrl);
- cur_target &= POWER_VDDIOCTRL_TRG_MASK;
- cur_target *= 50; /* 50 mV step*/
- cur_target += 2800; /* 2800 mV lowest */
- } while (new_target > cur_target);
-
- if (powered_by_linreg) {
- writel(POWER_CTRL_VDDIO_BO_IRQ,
- &power_regs->hw_power_ctrl_clr);
- if (bo_int & POWER_CTRL_ENIRQ_VDDIO_BO)
- setbits_le32(&power_regs->hw_power_vddioctrl,
- POWER_CTRL_ENIRQ_VDDIO_BO);
- }
- } else {
- do {
- if (cur_target - new_target > 100)
diff = cur_target - 100;
- else
- diff = new_target;
-
- diff -= 2800;
- diff /= 50;
-
- clrsetbits_le32(&power_regs->hw_power_vddioctrl,
- POWER_VDDIOCTRL_TRG_MASK, diff);
-
- if (powered_by_linreg ||
- (readl(&power_regs->hw_power_sts) &
- POWER_STS_VDD5V_GT_VDDIO))
- early_delay(500);
- else {
- while (!(readl(&power_regs->hw_power_sts) &
- POWER_STS_DC_OK))
- ;
-
- }
-
- cur_target = readl(&power_regs->hw_power_vddioctrl);
- cur_target &= POWER_VDDIOCTRL_TRG_MASK;
- cur_target *= 50; /* 50 mV step*/
- cur_target += 2800; /* 2800 mV lowest */
- } while (new_target < cur_target);
- }
-
- clrsetbits_le32(&power_regs->hw_power_vddioctrl,
- POWER_VDDDCTRL_BO_OFFSET_MASK,
- new_brownout << POWER_VDDDCTRL_BO_OFFSET_OFFSET);
-}
-
-void mx28_power_set_vddd(uint32_t new_target, uint32_t new_brownout)
-{
- struct mx28_power_regs *power_regs =
- (struct mx28_power_regs *)MXS_POWER_BASE;
- uint32_t cur_target, diff, bo_int = 0;
- uint32_t powered_by_linreg = 0;
-
- new_brownout = new_target - new_brownout;
-
- cur_target = readl(&power_regs->hw_power_vdddctrl);
- cur_target &= POWER_VDDDCTRL_TRG_MASK;
- cur_target *= 25; /* 25 mV step*/
- cur_target += 800; /* 800 mV lowest */
-
- powered_by_linreg = mx28_get_vddd_power_source_off();
- if (new_target > cur_target) {
- if (powered_by_linreg) {
- bo_int = readl(&power_regs->hw_power_vdddctrl);
- clrbits_le32(&power_regs->hw_power_vdddctrl,
- POWER_CTRL_ENIRQ_VDDD_BO);
+ } else {
+ diff = new_target;
}
- setbits_le32(&power_regs->hw_power_vdddctrl,
- POWER_VDDDCTRL_BO_OFFSET_MASK);
-
- do {
- if (new_target - cur_target > 100)
- diff = cur_target + 100;
- else
- diff = new_target;
-
- diff -= 800;
- diff /= 25;
-
- clrsetbits_le32(&power_regs->hw_power_vdddctrl,
- POWER_VDDDCTRL_TRG_MASK, diff);
+ diff -= cfg->lowest_mV;
+ diff /= cfg->step_mV;
- if (powered_by_linreg ||
- (readl(&power_regs->hw_power_sts) &
- POWER_STS_VDD5V_GT_VDDIO))
- early_delay(500);
- else {
- while (!(readl(&power_regs->hw_power_sts) &
- POWER_STS_DC_OK))
- ;
+ clrsetbits_le32(cfg->reg, cfg->trg_mask, diff);
+ if (powered_by_linreg ||
+ (readl(&power_regs->hw_power_sts) &
+ POWER_STS_VDD5V_GT_VDDIO))
+ early_delay(500);
+ else {
+ for (;;) {
+ tmp = readl(&power_regs->hw_power_sts);
+ if (tmp & POWER_STS_DC_OK)
+ break;
}
-
- cur_target = readl(&power_regs->hw_power_vdddctrl);
- cur_target &= POWER_VDDDCTRL_TRG_MASK;
- cur_target *= 25; /* 25 mV step*/
- cur_target += 800; /* 800 mV lowest */
- } while (new_target > cur_target);
-
- if (powered_by_linreg) {
- writel(POWER_CTRL_VDDD_BO_IRQ,
- &power_regs->hw_power_ctrl_clr);
- if (bo_int & POWER_CTRL_ENIRQ_VDDD_BO)
- setbits_le32(&power_regs->hw_power_vdddctrl,
- POWER_CTRL_ENIRQ_VDDD_BO);
}
- } else {
- do {
- if (cur_target - new_target > 100)
- diff = cur_target - 100;
- else
- diff = new_target;
-
- diff -= 800;
- diff /= 25;
-
- clrsetbits_le32(&power_regs->hw_power_vdddctrl,
- POWER_VDDDCTRL_TRG_MASK, diff);
-
- if (powered_by_linreg ||
- (readl(&power_regs->hw_power_sts) &
- POWER_STS_VDD5V_GT_VDDIO))
- early_delay(500);
- else {
- while (!(readl(&power_regs->hw_power_sts) &
- POWER_STS_DC_OK))
- ;
- }
+ cur_target = readl(cfg->reg);
+ cur_target &= cfg->trg_mask;
+ cur_target *= cfg->step_mV;
+ cur_target += cfg->lowest_mV;
+ } while (new_target > cur_target);
- cur_target = readl(&power_regs->hw_power_vdddctrl);
- cur_target &= POWER_VDDDCTRL_TRG_MASK;
- cur_target *= 25; /* 25 mV step*/
- cur_target += 800; /* 800 mV lowest */
- } while (new_target < cur_target);
+ if (adjust_up && powered_by_linreg) {
+ writel(cfg->bo_irq, &power_regs->hw_power_ctrl_clr);
+ if (bo_int & cfg->bo_enirq)
+ setbits_le32(cfg->reg, cfg->bo_enirq);
}
- clrsetbits_le32(&power_regs->hw_power_vdddctrl,
- POWER_VDDDCTRL_BO_OFFSET_MASK,
- new_brownout << POWER_VDDDCTRL_BO_OFFSET_OFFSET);
+ clrsetbits_le32(cfg->reg, cfg->bo_offset_mask,
+ new_brownout << cfg->bo_offset_offset);
}
-void mx28_setup_batt_detect(void)
+static void mxs_setup_batt_detect(void)
{
- mx28_lradc_init();
- mx28_lradc_enable_batt_measurement();
+ mxs_lradc_init();
+ mxs_lradc_enable_batt_measurement();
early_delay(10);
}
-void mx28_power_init(void)
+static void mxs_ungate_power(void)
+{
+#ifdef CONFIG_MX23
+ struct mxs_power_regs *power_regs =
+ (struct mxs_power_regs *)MXS_POWER_BASE;
+
+ writel(POWER_CTRL_CLKGATE, &power_regs->hw_power_ctrl_clr);
+#endif
+}
+
+void mxs_power_init(void)
{
- struct mx28_power_regs *power_regs =
- (struct mx28_power_regs *)MXS_POWER_BASE;
+ struct mxs_power_regs *power_regs =
+ (struct mxs_power_regs *)MXS_POWER_BASE;
- mx28_power_clock2xtal();
- mx28_power_clear_auto_restart();
- mx28_power_set_linreg();
- mx28_power_setup_5v_detect();
+ mxs_ungate_power();
- mx28_setup_batt_detect();
+ mxs_power_clock2xtal();
+ mxs_power_clear_auto_restart();
+ mxs_power_set_linreg();
+ mxs_power_setup_5v_detect();
- mx28_power_configure_power_source();
- mx28_enable_output_rail_protection();
+ mxs_setup_batt_detect();
- mx28_power_set_vddio(3300, 3150);
+ mxs_power_configure_power_source();
+ mxs_enable_output_rail_protection();
- mx28_power_set_vddd(1350, 1200);
+ mxs_power_set_vddx(&mxs_vddio_cfg, 3300, 3150);
+ mxs_power_set_vddx(&mxs_vddd_cfg, 1500, 1000);
writel(POWER_CTRL_VDDD_BO_IRQ | POWER_CTRL_VDDA_BO_IRQ |
POWER_CTRL_VDDIO_BO_IRQ | POWER_CTRL_VDD5V_DROOP_IRQ |
early_delay(1000);
}
-#ifdef CONFIG_SPL_MX28_PSWITCH_WAIT
-void mx28_power_wait_pswitch(void)
+#ifdef CONFIG_SPL_MXS_PSWITCH_WAIT
+void mxs_power_wait_pswitch(void)
{
- struct mx28_power_regs *power_regs =
- (struct mx28_power_regs *)MXS_POWER_BASE;
+ struct mxs_power_regs *power_regs =
+ (struct mxs_power_regs *)MXS_POWER_BASE;
while (!(readl(&power_regs->hw_power_sts) & POWER_STS_PSWITCH_MASK))
;