diff options
Diffstat (limited to 'board/freescale/mx6q_sabresd/mx6q_sabresd.c')
| -rw-r--r-- | board/freescale/mx6q_sabresd/mx6q_sabresd.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/board/freescale/mx6q_sabresd/mx6q_sabresd.c b/board/freescale/mx6q_sabresd/mx6q_sabresd.c index 274f0c8..c611dcb 100644 --- a/board/freescale/mx6q_sabresd/mx6q_sabresd.c +++ b/board/freescale/mx6q_sabresd/mx6q_sabresd.c @@ -694,6 +694,33 @@ void setup_pmic_voltages(void) if (i2c_read(0x8, 0, 1, &value, 1)) printf("%s:i2c_read:error\n", __func__); printf("Found PFUZE100! device id=%x\n", value); + if (value == 0x10) { + /*workaround ER1 of pfuze1.0: set all buck regulators + in PWM mode except SW1C*/ + value = 0x6; + i2c_write(0x8, 0x23, 1, &value, 1);/*SW1AB*/ + + value = 0x6; + i2c_write(0x8, 0x38, 1, &value, 1);/*SW2*/ + + value = 0x6; + i2c_write(0x8, 0x3f, 1, &value, 1);/*SW3A*/ + + value = 0x6; + i2c_write(0x8, 0x46, 1, &value, 1);/*SW3B*/ + + value = 0x6; + i2c_write(0x8, 0x4d, 1, &value, 1);/*SW4*/ + } + /*VDDCORE/VDDSOC default 1.375V is not enough, considering + pfuze tolerance and IR drop and ripple, need increase + to 1.425V for SabreSD*/ + value = 0x2d; + i2c_write(0x8, 0x20, 1, &value, 1); + + value = 0x2d; + i2c_write(0x8, 0x2e, 1, &value, 1); + #if CONFIG_MX6_INTER_LDO_BYPASS /*VDDCORE 1.1V@800Mhz: SW1AB*/ value = 0x20; |