3 files changed, 63 insertions, 5 deletions

diff --git a/firmware/target/mips/ingenic_x1000/erosqnative/power-erosqnative.c b/firmware/target/mips/ingenic_x1000/erosqnative/power-erosqnative.c
index 17cdb4d645..7ad9479a96 100644
--- a/firmware/target/mips/ingenic_x1000/erosqnative/power-erosqnative.c
+++ b/firmware/target/mips/ingenic_x1000/erosqnative/power-erosqnative.c
@@ -62,7 +62,8 @@ void power_init(void)
     /* FIXME: Copy paste from M3K. Probably not necessary */
     axp_modify(AXP_REG_DCDCMODE, 0, 0xc0);
 
-    /* Power on required supplies */
+    /* Power on required supplies
+     * TODO: This should be checked, though likely all but EXTEN are needed */
     axp_set_enabled_supplies(
         (1 << AXP_SUPPLY_EXTEN) |
         (1 << AXP_SUPPLY_DCDC1) |
@@ -81,6 +82,10 @@ void power_init(void)
         (1 << AXP_ADC_INTERNAL_TEMP) |
         (1 << AXP_ADC_APS_VOLTAGE));
 
+    /* Configure USB charging */
+    axp_set_vhold_level(4400);
+    usb_charging_maxcurrent_change(100);
+
     /* Delay to give power outputs time to stabilize.
      * With the power thread delay, this can apparently go as low as 50,
      * Keeping a higher value here just to ensure the bootloader works
@@ -91,7 +96,22 @@ void power_init(void)
 #ifdef HAVE_USB_CHARGING_ENABLE
 void usb_charging_maxcurrent_change(int maxcurrent)
 {
-    axp_set_charge_current(maxcurrent);
+    int vbus_limit;
+    int charge_current;
+
+    /* Note that the charge current setting is a maximum: it will be
+     * reduced dynamically by the AXP192 so the combined load is less
+     * than the set VBUS current limit. */
+    if(maxcurrent <= 100) {
+        vbus_limit = AXP_VBUS_LIMIT_100mA;
+        charge_current = 550;
+    } else {
+        vbus_limit = AXP_VBUS_LIMIT_500mA;
+        charge_current = 550;
+    }
+
+    axp_set_vbus_limit(vbus_limit);
+    axp_set_charge_current(charge_current);
 }
 #endif
 
diff --git a/firmware/target/mips/ingenic_x1000/fiiom3k/power-fiiom3k.c b/firmware/target/mips/ingenic_x1000/fiiom3k/power-fiiom3k.c
index 53451ffa6c..c8498c4dbc 100644
--- a/firmware/target/mips/ingenic_x1000/fiiom3k/power-fiiom3k.c
+++ b/firmware/target/mips/ingenic_x1000/fiiom3k/power-fiiom3k.c
@@ -78,6 +78,10 @@ void power_init(void)
         (1 << AXP_ADC_INTERNAL_TEMP) |
         (1 << AXP_ADC_APS_VOLTAGE));
 
+    /* Configure USB charging */
+    axp_set_vhold_level(4400);
+    usb_charging_maxcurrent_change(100);
+
     /* Short delay to give power outputs time to stabilize */
     mdelay(200);
 }
@@ -85,7 +89,22 @@ void power_init(void)
 #ifdef HAVE_USB_CHARGING_ENABLE
 void usb_charging_maxcurrent_change(int maxcurrent)
 {
-    axp_set_charge_current(maxcurrent);
+    int vbus_limit;
+    int charge_current;
+
+    /* Note that the charge current setting is a maximum: it will be
+     * reduced dynamically by the AXP192 so the combined load is less
+     * than the set VBUS current limit. */
+    if(maxcurrent <= 100) {
+        vbus_limit = AXP_VBUS_LIMIT_100mA;
+        charge_current = 550;
+    } else {
+        vbus_limit = AXP_VBUS_LIMIT_500mA;
+        charge_current = 550;
+    }
+
+    axp_set_vbus_limit(vbus_limit);
+    axp_set_charge_current(charge_current);
 }
 #endif
 
diff --git a/firmware/target/mips/ingenic_x1000/shanlingq1/power-shanlingq1.c b/firmware/target/mips/ingenic_x1000/shanlingq1/power-shanlingq1.c
index 65d1bc163f..9637ceef2f 100644
--- a/firmware/target/mips/ingenic_x1000/shanlingq1/power-shanlingq1.c
+++ b/firmware/target/mips/ingenic_x1000/shanlingq1/power-shanlingq1.c
@@ -86,7 +86,7 @@ void power_init(void)
         (1 << AXP_SUPPLY_DCDC2) | /* LCD (1.2 V) */
         (1 << AXP_SUPPLY_DCDC3) | /* CPU (1.8 V) */
         (1 << AXP_SUPPLY_LDO2) |  /* Touchscreen (3.3 V) */
-        (1 << AXP_SUPPLY_LDO3));  /* not sure (2.5 V) */
+        (1 << AXP_SUPPLY_LDO3));  /* USB analog (2.5 V) */
 
     /* Enable required ADCs */
     axp_set_enabled_adcs(
@@ -98,6 +98,10 @@ void power_init(void)
         (1 << AXP_ADC_INTERNAL_TEMP) |
         (1 << AXP_ADC_APS_VOLTAGE));
 
+    /* Configure USB charging */
+    axp_set_vhold_level(4400);
+    usb_charging_maxcurrent_change(100);
+
     /* Delay to give power output time to stabilize */
     mdelay(20);
 }
@@ -105,7 +109,22 @@ void power_init(void)
 #ifdef HAVE_USB_CHARGING_ENABLE
 void usb_charging_maxcurrent_change(int maxcurrent)
 {
-    axp_set_charge_current(maxcurrent);
+    int vbus_limit;
+    int charge_current;
+
+    /* Note that the charge current setting is a maximum: it will be
+     * reduced dynamically by the AXP192 so the combined load is less
+     * than the set VBUS current limit. */
+    if(maxcurrent <= 100) {
+        vbus_limit = AXP_VBUS_LIMIT_100mA;
+        charge_current = 550;
+    } else {
+        vbus_limit = AXP_VBUS_LIMIT_500mA;
+        charge_current = 550;
+    }
+
+    axp_set_vbus_limit(vbus_limit);
+    axp_set_charge_current(charge_current);
 }
 #endif