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authorPeng Fan <Peng.Fan@freescale.com>2015-04-29 10:52:52 +0800
committerPeng Fan <Peng.Fan@freescale.com>2015-04-29 15:10:57 +0800
commitdd842f32b6d8d770e844790643ece352f92b8c5e (patch)
tree976176297a3cf2b160bf73632e0a88e86c227852 /board/freescale/mx6sx_17x17_arm2
parentb7f3f9a6100519c784085ea9f6e575162555fb42 (diff)
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MLK-10774-53 imx: update setting pmic volatage
We should not rely on pfuze_common_init to set the voltage, may be we should remove the voltage settings in pfuze_common_init. This patch is to setting the voltages in power_init_board. Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Diffstat (limited to 'board/freescale/mx6sx_17x17_arm2')
-rw-r--r--board/freescale/mx6sx_17x17_arm2/mx6sx_17x17_arm2.c31
1 files changed, 30 insertions, 1 deletions
diff --git a/board/freescale/mx6sx_17x17_arm2/mx6sx_17x17_arm2.c b/board/freescale/mx6sx_17x17_arm2/mx6sx_17x17_arm2.c
index db0de6e..3d23408 100644
--- a/board/freescale/mx6sx_17x17_arm2/mx6sx_17x17_arm2.c
+++ b/board/freescale/mx6sx_17x17_arm2/mx6sx_17x17_arm2.c
@@ -107,11 +107,40 @@ struct i2c_pads_info i2c_pad_info2 = {
static struct pmic *pfuze;
int power_init_board(void)
{
+ unsigned int reg, ret;
pfuze = pfuze_common_init(I2C_PMIC);
if (!pfuze)
return -ENODEV;
- return pfuze_mode_init(pfuze, APS_PFM);
+ ret = pfuze_mode_init(pfuze, APS_PFM);
+ if (ret < 0)
+ return ret;
+
+ /* set SW1AB staby volatage 0.975V */
+ pmic_reg_read(pfuze, PFUZE100_SW1ABSTBY, &reg);
+ reg &= ~0x3f;
+ reg |= PFUZE100_SW1ABC_SETP(9750);
+ pmic_reg_write(pfuze, PFUZE100_SW1ABSTBY, reg);
+
+ /* set SW1AB/VDDARM step ramp up time from 16us to 4us/25mV */
+ pmic_reg_read(pfuze, PFUZE100_SW1ABCONF, &reg);
+ reg &= ~0xc0;
+ reg |= 0x40;
+ pmic_reg_write(pfuze, PFUZE100_SW1ABCONF, reg);
+
+ /* set SW1C staby volatage 0.975V */
+ pmic_reg_read(pfuze, PFUZE100_SW1CSTBY, &reg);
+ reg &= ~0x3f;
+ reg |= PFUZE100_SW1ABC_SETP(9750);
+ pmic_reg_write(pfuze, PFUZE100_SW1CSTBY, reg);
+
+ /* set SW1C/VDDSOC step ramp up time to from 16us to 4us/25mV */
+ pmic_reg_read(pfuze, PFUZE100_SW1CCONF, &reg);
+ reg &= ~0xc0;
+ reg |= 0x40;
+ pmic_reg_write(pfuze, PFUZE100_SW1CCONF, reg);
+
+ return 0;
}
#ifdef CONFIG_LDO_BYPASS_CHECK