#include <asm/io.h>
#include <asm/arch/imx-regs.h>
-#include "mx28_init.h"
+#include "mxs_init.h"
-void mx28_power_clock2xtal(void)
+void mxs_power_clock2xtal(void)
{
struct mxs_clkctrl_regs *clkctrl_regs =
(struct mxs_clkctrl_regs *)MXS_CLKCTRL_BASE;
&clkctrl_regs->hw_clkctrl_clkseq_set);
}
-void mx28_power_clock2pll(void)
+void mxs_power_clock2pll(void)
{
struct mxs_clkctrl_regs *clkctrl_regs =
(struct mxs_clkctrl_regs *)MXS_CLKCTRL_BASE;
CLKCTRL_CLKSEQ_BYPASS_CPU);
}
-void mx28_power_clear_auto_restart(void)
+void mxs_power_clear_auto_restart(void)
{
struct mxs_rtc_regs *rtc_regs =
(struct mxs_rtc_regs *)MXS_RTC_BASE;
;
}
-void mx28_power_set_linreg(void)
+void mxs_power_set_linreg(void)
{
struct mxs_power_regs *power_regs =
(struct mxs_power_regs *)MXS_POWER_BASE;
POWER_VDDIOCTRL_LINREG_OFFSET_1STEPS_BELOW);
}
-int mx28_get_batt_volt(void)
+int mxs_get_batt_volt(void)
{
struct mxs_power_regs *power_regs =
(struct mxs_power_regs *)MXS_POWER_BASE;
return volt;
}
-int mx28_is_batt_ready(void)
+int mxs_is_batt_ready(void)
{
- return (mx28_get_batt_volt() >= 3600);
+ return (mxs_get_batt_volt() >= 3600);
}
-int mx28_is_batt_good(void)
+int mxs_is_batt_good(void)
{
struct mxs_power_regs *power_regs =
(struct mxs_power_regs *)MXS_POWER_BASE;
- uint32_t volt = mx28_get_batt_volt();
+ 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)
+void mxs_power_setup_5v_detect(void)
{
struct mxs_power_regs *power_regs =
(struct mxs_power_regs *)MXS_POWER_BASE;
POWER_5VCTRL_PWRUP_VBUS_CMPS);
}
-void mx28_src_power_init(void)
+void mxs_src_power_init(void)
{
struct mxs_power_regs *power_regs =
(struct mxs_power_regs *)MXS_POWER_BASE;
clrbits_le32(&power_regs->hw_power_5vctrl, POWER_5VCTRL_DCDC_XFER);
}
-void mx28_power_init_4p2_params(void)
+void mxs_power_init_4p2_params(void)
{
struct mxs_power_regs *power_regs =
(struct mxs_power_regs *)MXS_POWER_BASE;
0x3f << POWER_5VCTRL_CHARGE_4P2_ILIMIT_OFFSET);
}
-void mx28_enable_4p2_dcdc_input(int xfer)
+void mxs_enable_4p2_dcdc_input(int xfer)
{
struct mxs_power_regs *power_regs =
(struct mxs_power_regs *)MXS_POWER_BASE;
POWER_CTRL_ENIRQ_VDD5V_DROOP);
}
-void mx28_power_init_4p2_regulator(void)
+void mxs_power_init_4p2_regulator(void)
{
struct mxs_power_regs *power_regs =
(struct mxs_power_regs *)MXS_POWER_BASE;
* 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)
+void mxs_power_init_dcdc_4p2_source(void)
{
struct mxs_power_regs *power_regs =
(struct mxs_power_regs *)MXS_POWER_BASE;
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)
+void mxs_power_enable_4p2(void)
{
struct mxs_power_regs *power_regs =
(struct mxs_power_regs *)MXS_POWER_BASE;
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)
+void mxs_boot_valid_5v(void)
{
struct mxs_power_regs *power_regs =
(struct mxs_power_regs *)MXS_POWER_BASE;
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)
+void mxs_powerdown(void)
{
struct mxs_power_regs *power_regs =
(struct mxs_power_regs *)MXS_POWER_BASE;
&power_regs->hw_power_reset);
}
-void mx28_batt_boot(void)
+void mxs_batt_boot(void)
{
struct mxs_power_regs *power_regs =
(struct mxs_power_regs *)MXS_POWER_BASE;
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)
+void mxs_handle_5v_conflict(void)
{
struct mxs_power_regs *power_regs =
(struct mxs_power_regs *)MXS_POWER_BASE;
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)
+void mxs_5v_boot(void)
{
struct mxs_power_regs *power_regs =
(struct mxs_power_regs *)MXS_POWER_BASE;
* 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)
+void mxs_init_batt_bo(void)
{
struct mxs_power_regs *power_regs =
(struct mxs_power_regs *)MXS_POWER_BASE;
writel(POWER_CTRL_ENIRQ_BATT_BO, &power_regs->hw_power_ctrl_clr);
}
-void mx28_switch_vddd_to_dcdc_source(void)
+void mxs_switch_vddd_to_dcdc_source(void)
{
struct mxs_power_regs *power_regs =
(struct mxs_power_regs *)MXS_POWER_BASE;
POWER_VDDDCTRL_DISABLE_STEPPING);
}
-void mx28_power_configure_power_source(void)
+void mxs_power_configure_power_source(void)
{
int batt_ready, batt_good;
struct mxs_power_regs *power_regs =
struct mxs_lradc_regs *lradc_regs =
(struct mxs_lradc_regs *)MXS_LRADC_BASE;
- mx28_src_power_init();
+ mxs_src_power_init();
- batt_ready = mx28_is_batt_ready();
+ batt_ready = mxs_is_batt_ready();
if (readl(&power_regs->hw_power_sts) & POWER_STS_VDD5V_GT_VDDIO) {
- batt_good = mx28_is_batt_good();
+ batt_good = mxs_is_batt_good();
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. */
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)
+void mxs_enable_output_rail_protection(void)
{
struct mxs_power_regs *power_regs =
(struct mxs_power_regs *)MXS_POWER_BASE;
POWER_VDDIOCTRL_PWDN_BRNOUT);
}
-int mx28_get_vddio_power_source_off(void)
+int mxs_get_vddio_power_source_off(void)
{
struct mxs_power_regs *power_regs =
(struct mxs_power_regs *)MXS_POWER_BASE;
}
-int mx28_get_vddd_power_source_off(void)
+int mxs_get_vddd_power_source_off(void)
{
struct mxs_power_regs *power_regs =
(struct mxs_power_regs *)MXS_POWER_BASE;
return 0;
}
-void mx28_power_set_vddio(uint32_t new_target, uint32_t new_brownout)
+void mxs_power_set_vddio(uint32_t new_target, uint32_t new_brownout)
{
struct mxs_power_regs *power_regs =
(struct mxs_power_regs *)MXS_POWER_BASE;
cur_target *= 50; /* 50 mV step*/
cur_target += 2800; /* 2800 mV lowest */
- powered_by_linreg = mx28_get_vddio_power_source_off();
+ powered_by_linreg = mxs_get_vddio_power_source_off();
if (new_target > cur_target) {
if (powered_by_linreg) {
new_brownout << POWER_VDDDCTRL_BO_OFFSET_OFFSET);
}
-void mx28_power_set_vddd(uint32_t new_target, uint32_t new_brownout)
+void mxs_power_set_vddd(uint32_t new_target, uint32_t new_brownout)
{
struct mxs_power_regs *power_regs =
(struct mxs_power_regs *)MXS_POWER_BASE;
cur_target *= 25; /* 25 mV step*/
cur_target += 800; /* 800 mV lowest */
- powered_by_linreg = mx28_get_vddd_power_source_off();
+ powered_by_linreg = mxs_get_vddd_power_source_off();
if (new_target > cur_target) {
if (powered_by_linreg) {
bo_int = readl(&power_regs->hw_power_vdddctrl);
new_brownout << POWER_VDDDCTRL_BO_OFFSET_OFFSET);
}
-void mx28_setup_batt_detect(void)
+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)
+void mxs_power_init(void)
{
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_power_clock2xtal();
+ mxs_power_clear_auto_restart();
+ mxs_power_set_linreg();
+ mxs_power_setup_5v_detect();
- mx28_setup_batt_detect();
+ mxs_setup_batt_detect();
- mx28_power_configure_power_source();
- mx28_enable_output_rail_protection();
+ mxs_power_configure_power_source();
+ mxs_enable_output_rail_protection();
- mx28_power_set_vddio(3300, 3150);
+ mxs_power_set_vddio(3300, 3150);
- mx28_power_set_vddd(1350, 1200);
+ mxs_power_set_vddd(1350, 1200);
writel(POWER_CTRL_VDDD_BO_IRQ | POWER_CTRL_VDDA_BO_IRQ |
POWER_CTRL_VDDIO_BO_IRQ | POWER_CTRL_VDD5V_DROOP_IRQ |
}
#ifdef CONFIG_SPL_MX28_PSWITCH_WAIT
-void mx28_power_wait_pswitch(void)
+void mxs_power_wait_pswitch(void)
{
struct mxs_power_regs *power_regs =
(struct mxs_power_regs *)MXS_POWER_BASE;