diff options
Diffstat (limited to 'zephyr/projects/rex/power_signals.dts')
| -rw-r--r-- | zephyr/projects/rex/power_signals.dts | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/zephyr/projects/rex/power_signals.dts b/zephyr/projects/rex/power_signals.dts new file mode 100644 index 0000000000..860c316795 --- /dev/null +++ b/zephyr/projects/rex/power_signals.dts @@ -0,0 +1,152 @@ +/* Copyright 2022 The ChromiumOS Authors + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +/ { + chosen { + intel-ap-pwrseq,espi = &espi0; + }; + + common-pwrseq { + compatible = "intel,ap-pwrseq"; + + sys-pwrok-delay = <3>; + all-sys-pwrgd-timeout = <20>; + }; + + pwr-en-pp3300-s5 { + compatible = "intel,ap-pwrseq-gpio"; + dbg-label = "PP1800_S5/PP3300_S5 enable output to LS"; + enum-name = "PWR_EN_PP3300_A"; + gpios = <&gpiob 6 GPIO_ACTIVE_HIGH>; + output; + }; + pwr-pg-ec-rsmrst-od { + compatible = "intel,ap-pwrseq-gpio"; + dbg-label = "RSMRST power good from regulator"; + enum-name = "PWR_RSMRST"; + gpios = <&gpioe 2 GPIO_ACTIVE_HIGH>; + interrupt-flags = <GPIO_INT_EDGE_BOTH>; + }; + pwr-ec-pch-rsmrst-odl { + compatible = "intel,ap-pwrseq-gpio"; + dbg-label = "RSMRST output to PCH"; + enum-name = "PWR_EC_PCH_RSMRST"; + gpios = <&gpioa 6 GPIO_ACTIVE_HIGH>; + output; + }; + pwr-pch-pwrok { + compatible = "intel,ap-pwrseq-gpio"; + dbg-label = "PCH_PWROK output to PCH"; + enum-name = "PWR_PCH_PWROK"; + gpios = <&gpioa 5 GPIO_ACTIVE_HIGH>; + output; + }; + pwr-ec-pch-sys-pwrok { + compatible = "intel,ap-pwrseq-gpio"; + dbg-label = "SYS_PWROK output to PCH"; + enum-name = "PWR_EC_PCH_SYS_PWROK"; + gpios = <&gpiob 0 GPIO_ACTIVE_HIGH>; + output; + }; + pwr-sys-rst-l { + compatible = "intel,ap-pwrseq-gpio"; + dbg-label = "SYS_RESET# output to PCH"; + enum-name = "PWR_SYS_RST"; + gpios = <&gpioc 5 (GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN)>; + output; + }; + pwr-slp-s0-l { + compatible = "intel,ap-pwrseq-gpio"; + dbg-label = "SLP_S0_L input from PCH"; + enum-name = "PWR_SLP_S0"; + gpios = <&gpiod 5 GPIO_ACTIVE_LOW>; + interrupt-flags = <GPIO_INT_EDGE_BOTH>; + }; + pwr-slp-s3-l { + compatible = "intel,ap-pwrseq-vw"; + dbg-label = "SLP_S3_L input from PCH"; + enum-name = "PWR_SLP_S3"; + virtual-wire = "ESPI_VWIRE_SIGNAL_SLP_S4"; + vw-invert; +/* + * TODO: Initially, use virtual wire for sleep S3 signal instead of + * of the GPIO signal which also exists. + * compatible = "intel,ap-pwrseq-gpio"; + * gpios = <&gpio4 1 GPIO_ACTIVE_LOW>; + * interrupt-flags = <GPIO_INT_EDGE_BOTH>; + */ + }; + pwr-slp-s4 { + compatible = "intel,ap-pwrseq-vw"; + dbg-label = "SLP_S4 virtual wire input from PCH"; + enum-name = "PWR_SLP_S4"; + virtual-wire = "ESPI_VWIRE_SIGNAL_SLP_S4"; + vw-invert; + }; + pwr-slp-s5 { + compatible = "intel,ap-pwrseq-vw"; + dbg-label = "SLP_S5 virtual wire input from PCH"; + enum-name = "PWR_SLP_S5"; + virtual-wire = "ESPI_VWIRE_SIGNAL_SLP_S5"; + vw-invert; + }; + pwr-all-sys-pwrgd { + compatible = "intel,ap-pwrseq-gpio"; + dbg-label = "all power good"; + enum-name = "PWR_ALL_SYS_PWRGD"; + gpios = <&gpiof 4 (GPIO_ACTIVE_HIGH | GPIO_PULL_UP)>; + interrupt-flags = <GPIO_INT_EDGE_BOTH>; + }; +}; + +/* + * Because the power signals directly reference the GPIOs, + * the corresponding named-gpios need to have no-auto-init set. + */ + /* pwr-en-pp3300-s5 */ +&gpio_en_s5_rails { + no-auto-init; +}; + +/* pwr-pg-ec-rsmrst-od */ +&gpio_seq_ec_rsmrst_odl{ + no-auto-init; +}; + +/* pwr-ec-pch-rsmrst-odl */ +&gpio_ec_soc_rsmrst_l{ + no-auto-init; +}; + +/* pwr-pch-pwrok */ +&gpio_soc_pwrok{ + no-auto-init; +}; + +/* pwr-ec-pch-sys-pwrok */ +&gpio_sys_pwrok{ + no-auto-init; +}; + +/* pwr-sys-rst-l */ +&gpio_sys_rst_odl{ + no-auto-init; +}; + +/* pwr-slp-s0-l */ +&gpio_sys_slp_s0ix_3v3_l{ + no-auto-init; +}; + +/* pwr-slp-s3-l */ +&gpio_slp_s3_ls_l{ + no-auto-init; +}; + +/* pwr-all-sys-pwrgd */ +&gpio_seq_ec_all_sys_pg{ + no-auto-init; +}; + |