diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/mainboard/google/fizz/mainboard.c | 50 |
1 files changed, 30 insertions, 20 deletions
diff --git a/src/mainboard/google/fizz/mainboard.c b/src/mainboard/google/fizz/mainboard.c index 4e7f3165dc..3a8aa5420f 100644 --- a/src/mainboard/google/fizz/mainboard.c +++ b/src/mainboard/google/fizz/mainboard.c @@ -43,7 +43,7 @@ * For type-C chargers, set PL2 to 90% of max power to account for * cable loss and FET Rdson loss in the path from the source. */ -#define GET_TYPEC_PL2(w) (9 * (w) / 10) +#define SET_PSYSPL2(w) (9 * (w) / 10) #define OEM_ID_COUNT 3 #define SKU_ID_COUNT 7 @@ -108,17 +108,26 @@ static uint8_t board_sku_id(void) * * Set Pl2 and SysPl2 values based on detected charger. * If detected barrel jack, use values below based on SKU. - * +-------------+-----+---------+-------------------+ - * | sku_id | PL2 | PsysPL2 | Pmax (Prop = 48W) | - * +-------------+-----+---------+-------------------+ - * | i7 U42 | 44 | 90 | 119 | - * | i5 U42 | 44 | 90 | 119 | - * | i3 U42 | 44 | 90 | 119 | - * | i7 U22 | 29 | 65 | 91 | - * | i5 U22 | 29 | 65 | 91 | - * | i3 U22 | 29 | 65 | 91 | - * | celeron U22 | 29 | 65 | 91 | - * +-------------+-----+---------+-------------------+ + * +-------------+-----+---------+-----+------+------+ + * | sku_id | PL2 | PsysPL2 | PL4 | Pmax | Prop | + * +-------------+-----+---------+-----+------+------+ + * | i7 U42 | 44 | 81 | 71 | 120 | 48 | + * | i5 U42 | 44 | 81 | 71 | 120 | 48 | + * | i3 U42 | 44 | 81 | 71 | 120 | 48 | + * | i7 U22 | 29 | 58 | 43 | 91 | 48 | + * | i5 U22 | 29 | 58 | 43 | 91 | 48 | + * | i3 U22 | 29 | 58 | 43 | 91 | 48 | + * | celeron U22 | 29 | 58 | 43 | 91 | 48 | + * +-------------+-----+---------+-----+------+------+ + * For USB C charger: + * +-------------+-----+---------+-----+------+------+ + * | Max Power(W)| PL2 | PsysPL2 | PL4 | Pmax | Prop | + * +-------------+-----+---------+-----+------+------+ + * | 60 (U42) | 44 | 54 | 54 | 120 | 48 | + * | 60 (U22) | 29 | 54 | 43 | 91 | 48 | + * | X (U42) | 44 | .9X | .9X | 120 | 48 | + * | X (U22) | 29 | .9X | .9X | 91 | 48 | + * +-------------+-----+---------+-----+------+------+ */ static void mainboard_set_power_limits(u32 *pl2_val, u32 *psyspl2_val) { @@ -131,25 +140,26 @@ static void mainboard_set_power_limits(u32 *pl2_val, u32 *psyspl2_val) (1 << FIZZ_SKU_ID_I5_U42) | (1 << FIZZ_SKU_ID_I3_U42); + /* PL2 value is sku-based, no matter what charger we are using */ + pl2 = FIZZ_PL2_U22; + if ((1 << sku) & u42_mask) + pl2 = FIZZ_PL2_U42; + /* If we can't get charger info or not PD charger, assume barrel jack */ if (rv != 0 || type != USB_CHG_TYPE_PD) { - /* using the barrel jack, get PL2 based on sku id */ - pl2 = FIZZ_PL2_U22; + /* using the barrel jack, get PsysPL2 based on sku id */ psyspl2 = FIZZ_PSYSPL2_U22; /* Running a U42 SKU */ - if ((1 << sku) & u42_mask) { - pl2 = FIZZ_PL2_U42; + if ((1 << sku) & u42_mask) psyspl2 = FIZZ_PSYSPL2_U42; - } - } else { /* Base on max value of adapter */ - pl2 = GET_TYPEC_PL2(watts); psyspl2 = watts; } *pl2_val = pl2; - *psyspl2_val = psyspl2; + /* set psyspl2 to 90% of max adapter power */ + *psyspl2_val = SET_PSYSPL2(psyspl2); } static uint8_t board_oem_id(void) |