diff options
Diffstat (limited to 'src/mainboard/google/gru/pwm_regulator.c')
| -rw-r--r-- | src/mainboard/google/gru/pwm_regulator.c | 27 |
1 files changed, 21 insertions, 6 deletions
diff --git a/src/mainboard/google/gru/pwm_regulator.c b/src/mainboard/google/gru/pwm_regulator.c index b85f41ff45..696f09a206 100644 --- a/src/mainboard/google/gru/pwm_regulator.c +++ b/src/mainboard/google/gru/pwm_regulator.c @@ -47,10 +47,23 @@ int pwm_design_voltage[][2] = { [PWM_REGULATOR_CENTERLOG] = {7994, 10499} }; +int pwm_enum_to_pwm_number[] = { + [PWM_REGULATOR_GPU] = 0, + [PWM_REGULATOR_LIT] = 2, +#if IS_ENABLED(CONFIG_BOARD_GOOGLE_SCARLET) + [PWM_REGULATOR_BIG] = 3, + [PWM_REGULATOR_CENTERLOG] = -1, /* fixed regulator on Scarlet */ +#else + [PWM_REGULATOR_BIG] = 1, + [PWM_REGULATOR_CENTERLOG] = 3, +#endif +}; + void pwm_regulator_configure(enum pwm_regulator pwm, int millivolt) { int duty_ns, voltage_max, voltage_min; int voltage = millivolt * 10; /* for higer calculation accuracy */ + int pwm_number = pwm_enum_to_pwm_number[pwm]; voltage_min = pwm_design_voltage[pwm][0]; voltage_max = pwm_design_voltage[pwm][1]; @@ -75,24 +88,26 @@ void pwm_regulator_configure(enum pwm_regulator pwm, int millivolt) duty_ns = PWM_PERIOD * (voltage_max - voltage) / (voltage_max - voltage_min); - pwm_init(pwm, PWM_PERIOD, duty_ns); + pwm_init(pwm_number, PWM_PERIOD, duty_ns); - switch (pwm) { - case PWM_REGULATOR_GPU: + switch (pwm_number) { + case 0: gpio_input(GPIO(4, C, 2)); /* PWM0 remove pull-down */ write32(&rk3399_grf->iomux_pwm_0, IOMUX_PWM_0); break; - case PWM_REGULATOR_BIG: + case 1: gpio_input(GPIO(4, C, 6)); /* PWM1 remove pull-down */ write32(&rk3399_grf->iomux_pwm_1, IOMUX_PWM_1); break; - case PWM_REGULATOR_LIT: + case 2: gpio_input(GPIO(1, C, 3)); /* PWM2 remove pull-down */ write32(&rk3399_pmugrf->iomux_pwm_2, IOMUX_PWM_2); break; - case PWM_REGULATOR_CENTERLOG: + case 3: gpio_input(GPIO(0, A, 6)); /* PWM3 remove pull-down */ write32(&rk3399_pmugrf->iomux_pwm_3a, IOMUX_PWM_3_A); break; + default: + die("incorrect board configuration"); } } |