diff options
Diffstat (limited to 'src/mainboard/google/hatch/variants/noibat/mainboard.c')
| -rw-r--r-- | src/mainboard/google/hatch/variants/noibat/mainboard.c | 143 |
1 files changed, 0 insertions, 143 deletions
diff --git a/src/mainboard/google/hatch/variants/noibat/mainboard.c b/src/mainboard/google/hatch/variants/noibat/mainboard.c deleted file mode 100644 index b5bc699ca0..0000000000 --- a/src/mainboard/google/hatch/variants/noibat/mainboard.c +++ /dev/null @@ -1,143 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ - -#include <baseboard/variants.h> -#include <chip.h> -#include <delay.h> -#include <device/device.h> -#include <ec/google/chromeec/ec.h> -#include <gpio.h> -#include <intelblocks/power_limit.h> -#include <timer.h> - -#define GPIO_HDMI_HPD GPP_E13 -#define GPIO_DP_HPD GPP_E14 - -/* TODO: This can be moved to common directory */ -static void wait_for_hpd(gpio_t gpio, long timeout) -{ - struct stopwatch sw; - - printk(BIOS_INFO, "Waiting for HPD\n"); - stopwatch_init_msecs_expire(&sw, timeout); - while (!gpio_get(gpio)) { - if (stopwatch_expired(&sw)) { - printk(BIOS_WARNING, - "HPD not ready after %ldms. Abort.\n", timeout); - return; - } - mdelay(200); - } - printk(BIOS_INFO, "HPD ready after %lu ms\n", - stopwatch_duration_msecs(&sw)); -} - -/* - * 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 SET_PSYSPL2(w) (9 * (w) / 10) - -#define PUFF_PL2 (35) - -#define PUFF_PSYSPL2 (58) - -#define PUFF_MAX_TIME_WINDOW 6 -#define PUFF_MIN_DUTYCYCLE 4 - -/* - * mainboard_set_power_limits - * - * Set Pl2 and SysPl2 values based on detected charger. - * Values are defined below but we use U22 value for all SKUs for now. - * definitions: - * x = no value entered. Use default value in parenthesis. - * will set 0 to anything that shouldn't be set. - * n = max value of power adapter. - * +-------------+-----+---------+-----------+-------+ - * | sku_id | PL2 | PsysPL2 | PsysPL3 | PL4 | - * +-------------+-----+---------+-----------+-------+ - * | i7 U42 | 51 | 81 | x(.85PL4) | x(82) | - * | celeron U22 | 35 | 58 | x(.85PL4) | x(51) | - * +-------------+-----+---------+-----------+-------+ - * For USB C charger: - * +-------------+-----+---------+---------+-------+ - * | Max Power(W)| PL2 | PsysPL2 | PsysPL3 | PL4 | - * +-------------+-----+---------+---------+-------+ - * | 60 (U42) | 44 | 54 | 54 | 54 | - * | 60 (U22) | 29 | 54 | 54 | x(43) | - * | n (U42) | 44 | .9n | .9n | .9n | - * | n (U22) | 29 | .9n | .9n | x(43) | - * +-------------+-----+---------+---------+-------+ - */ - -/* - * Psys_pmax considerations - * - * Given the hardware design in puff, the serial shunt resistor is 0.01ohm. - * The full scale of hardware PSYS signal 0.8v maps to system current 9.6A - * instead of real system power. The equation is shown below: - * PSYS = 0.8v = (0.01ohm x Iinput) x 50 (INA213, gain 50V/V) x 15k/(15k + 75k) - * Hence, Iinput (Amps) = 9.6A - * Since there is no voltage information from PSYS, different voltage input - * would map to different Psys_pmax settings: - * For Type-C 15V, the Psys_pmax sholud be 15v x 9.6A = 144W - * For Type-C 20V, the Psys_pmax should be 20v x 9.6A = 192W - * For a barral jack, the Psys_pmax should be 19v x 9.6A = 182.4W - */ -#define PSYS_IMAX 9600 -#define BJ_VOLTS_MV 19000 - -static void mainboard_set_power_limits(struct soc_power_limits_config *conf) -{ - enum usb_chg_type type; - u32 watts; - u16 volts_mv, current_ma; - u32 psyspl2 = PUFF_PSYSPL2; // default barrel jack value for U22 - int rv = google_chromeec_get_usb_pd_power_info(&type, ¤t_ma, &volts_mv); - - /* use SoC default value for PsysPL3 and PL4 unless we're on USB-PD*/ - conf->tdp_psyspl3 = 0; - conf->tdp_pl4 = 0; - - if (rv == 0 && type == USB_CHG_TYPE_PD) { - /* Detected USB-PD. Base on max value of adapter */ - watts = ((u32)current_ma * volts_mv) / 1000000; - psyspl2 = watts; - conf->tdp_psyspl3 = SET_PSYSPL2(psyspl2); - /* set max possible time window */ - conf->tdp_psyspl3_time = PUFF_MAX_TIME_WINDOW; - /* set minimum duty cycle */ - conf->tdp_psyspl3_dutycycle = PUFF_MIN_DUTYCYCLE; - conf->tdp_pl4 = SET_PSYSPL2(psyspl2); - } else { - /* Input type is barrel jack */ - volts_mv = BJ_VOLTS_MV; - } - /* voltage unit is milliVolts and current is in milliAmps */ - conf->psys_pmax = (u16)(((u32)PSYS_IMAX * volts_mv) / 1000000); - - conf->tdp_pl2_override = PUFF_PL2; - /* set psyspl2 to 90% of max adapter power */ - conf->tdp_psyspl2 = SET_PSYSPL2(psyspl2); -} - -void variant_ramstage_init(void) -{ - static const long display_timeout_ms = 3000; - struct soc_power_limits_config *soc_config; - config_t *conf = config_of_soc(); - - /* This is reconfigured back to whatever FSP-S expects by gpio_configure_pads. */ - gpio_input(GPIO_HDMI_HPD); - gpio_input(GPIO_DP_HPD); - if (display_init_required() - && !gpio_get(GPIO_HDMI_HPD) - && !gpio_get(GPIO_DP_HPD)) { - /* This has to be done before FSP-S runs. */ - if (google_chromeec_wait_for_displayport(display_timeout_ms)) - wait_for_hpd(GPIO_DP_HPD, display_timeout_ms); - } - /* Psys_pmax needs to be setup before FSP-S */ - soc_config = &conf->power_limits_config; - mainboard_set_power_limits(soc_config); -} |