diff options
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/dts/fsl-imx8mq.dtsi | 38 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-imx8m/power-domain.h | 15 |
2 files changed, 47 insertions, 6 deletions
diff --git a/arch/arm/dts/fsl-imx8mq.dtsi b/arch/arm/dts/fsl-imx8mq.dtsi index 814a1b7df4..fbf5009886 100644 --- a/arch/arm/dts/fsl-imx8mq.dtsi +++ b/arch/arm/dts/fsl-imx8mq.dtsi @@ -19,6 +19,7 @@ #include <dt-bindings/input/input.h> #include <dt-bindings/interrupt-controller/arm-gic.h> #include <dt-bindings/pinctrl/pins-imx8mq.h> +#include <dt-bindings/power/imx8mq-power.h> #include <dt-bindings/thermal/thermal.h> / { @@ -71,12 +72,6 @@ interrupt-parent = <&gic>; }; - power: power-controller { - compatible = "fsl,imx8mq-pm-domain"; - num-domains = <11>; - #power-domain-cells = <1>; - }; - pwm2: pwm@30670000 { compatible = "fsl,imx8mq-pwm", "fsl,imx27-pwm"; reg = <0x0 0x30670000 0x0 0x10000>; @@ -276,6 +271,37 @@ interrupts = <GIC_SPI 87 IRQ_TYPE_LEVEL_HIGH>; #interrupt-cells = <3>; interrupt-parent = <&gic>; + + pgc { + #address-cells = <1>; + #size-cells = <0>; + + /* + * As per comment in ATF source code: + * + * PCIE1 and PCIE2 share the + * same reset signal, if we + * power down PCIE2, PCIE1 + * will be held in reset too. + * + * So instead of creating two + * separate power domains for + * PCIE1 and PCIE2 we create a + * link between both and use + * it as a shared PCIE power + * domain. + */ + pgc_pcie: power-domain@1 { + #power-domain-cells = <0>; + reg = <IMX8M_POWER_DOMAIN_PCIE1>; + power-domains = <&pgc_pcie2>; + }; + + pgc_pcie2: power-domain@a { + #power-domain-cells = <0>; + reg = <IMX8M_POWER_DOMAIN_PCIE2>; + }; + }; }; usdhc1: usdhc@30b40000 { diff --git a/arch/arm/include/asm/arch-imx8m/power-domain.h b/arch/arm/include/asm/arch-imx8m/power-domain.h new file mode 100644 index 0000000000..0f94945894 --- /dev/null +++ b/arch/arm/include/asm/arch-imx8m/power-domain.h @@ -0,0 +1,15 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright 2017 NXP + */ + +#ifndef _ASM_ARCH_IMX8M_POWER_DOMAIN_H +#define _ASM_ARCH_IMX8M_POWER_DOMAIN_H + +struct imx8m_power_domain_platdata { + int resource_id; + int has_pd; + struct power_domain pd; +}; + +#endif |