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/linux/Documentation/devicetree/bindings/firmware/
H A Dfsl,scu.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/firmware/fsl,scu.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Dong Aisheng <aisheng.dong@nxp.com>
13 The System Controller Firmware (SCFW) is a low-level system function
14 which runs on a dedicated Cortex-M core to provide power, clock, and
17 The AP communicates with the SC using a multi-ported MU module found
26 const: fsl,imx-scu
28 clock-controller:
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/linux/drivers/clk/imx/
H A DMakefile1 # SPDX-License-Identifier: GPL-2.0
3 mxc-clk-objs += clk.o
4 mxc-clk-objs += clk-busy.o
5 mxc-clk-objs += clk-composite-7ulp.o
6 mxc-clk-objs += clk-composite-8m.o
7 mxc-clk-objs += clk-composite-93.o
8 mxc-clk-objs += clk-fracn-gppll.o
9 mxc-clk-objs += clk-cpu.o
10 mxc-clk-objs += clk-divider-gate.o
11 mxc-clk-objs += clk-fixup-div.o
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H A Dclk-scu.c1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright 2018-2021 NXP
7 #include <dt-bindings/firmware/imx/rsrc.h>
8 #include <linux/arm-smccc.h>
10 #include <linux/clk-provider.h>
13 #include <linux/firmware/imx/svc/rm.h>
20 #include "clk-scu.h"
44 * struct clk_scu - Description of one SCU clock
46 * @rsrc_id: resource ID of this SCU clock
62 * struct clk_gpr_scu - Description of one SCU GPR clock
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H A DKconfig1 # SPDX-License-Identifier: GPL-2.0
4 tristate "IMX clock"
96 tristate "IMX8QXP SCU Clock"
102 Build the driver for IMX8QXP SCU based clocks.
/linux/Documentation/devicetree/bindings/input/
H A Dfsl,scu-key.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/input/fsl,scu-key.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: i.MX SCU Client Device Node - SCU Key Based on SCU Message Protocol
10 - Dong Aisheng <aisheng.dong@nxp.com>
12 description: i.MX SCU Client Device Node
13 Client nodes are maintained as children of the relevant IMX-SCU device node.
16 - $ref: input.yaml#
21 - const: fsl,imx8qxp-sc-key
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/linux/Documentation/devicetree/bindings/watchdog/
H A Dfsl,scu-wdt.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/watchdog/fsl,scu-wdt.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: i.MX SCU Client Device Node - Watchdog Based on SCU Message Protocol
10 - Dong Aisheng <aisheng.dong@nxp.com>
12 description: i.MX SCU Client Device Node
13 Client nodes are maintained as children of the relevant IMX-SCU device node.
16 - $ref: watchdog.yaml#
21 - enum:
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/linux/drivers/gpio/
H A Dgpio-imx-scu.c1 // SPDX-License-Identifier: GPL-2.0-only
6 * to control the PIN resources on SCU domain.
13 #include <linux/firmware/imx/svc/rm.h>
14 #include <dt-bindings/firmware/imx/rsrc.h>
40 if (offset >= chip->ngpio) in imx_scu_gpio_get()
41 return -EINVAL; in imx_scu_gpio_get()
43 mutex_lock(&priv->lock); in imx_scu_gpio_get()
45 /* to read PIN state via scu api */ in imx_scu_gpio_get()
46 err = imx_sc_misc_get_control(priv->handle, in imx_scu_gpio_get()
48 mutex_unlock(&priv->lock); in imx_scu_gpio_get()
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/linux/drivers/firmware/imx/
H A DMakefile1 # SPDX-License-Identifier: GPL-2.0
2 obj-$(CONFIG_IMX_DSP) += imx-dsp.o
3 obj-$(CONFIG_IMX_SCU) += imx-scu.o misc.o imx-scu-irq.o rm.o imx-scu-soc.o
4 obj-${CONFIG_IMX_SCMI_MISC_DRV} += sm-misc.o
H A Dimx-scu.c1 // SPDX-License-Identifier: GPL-2.0+
6 * Implementation of the SCU IPC functions using MUs (client side).
11 #include <linux/firmware/imx/ipc.h>
12 #include <linux/firmware/imx/sci.h>
36 /* SCU uses 4 Tx and 4 Rx channels */
43 /* temporarily store the SCU msg */
70 -EINVAL, /* IMX_SC_ERR_VERSION */
71 -EINVAL, /* IMX_SC_ERR_CONFIG */
72 -EINVAL, /* IMX_SC_ERR_PARM */
73 -EACCES, /* IMX_SC_ERR_NOACCESS */
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H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
3 tristate "IMX DSP Protocol driver"
14 bool "IMX SCU Protocol driver"
18 The System Controller Firmware (SCFW) is a low-level system function
19 which runs on a dedicated Cortex-M core to provide power, clock, and
24 SCU firmware running on M4.
27 tristate "IMX SCMI MISC Protocol driver"
31 a low-level system function which runs on a dedicated Cortex-M
H A Dimx-scu-irq.c1 // SPDX-License-Identifier: GPL-2.0+
5 * Implementation of the SCU IRQ functions using MU.
9 #include <dt-bindings/firmware/imx/rsrc.h>
10 #include <linux/firmware/imx/ipc.h>
11 #include <linux/firmware/imx/sci.h>
123 hdr->ver = IMX_SC_RPC_VERSION; in imx_scu_irq_get_status()
124 hdr->svc = IMX_SC_RPC_SVC_IRQ; in imx_scu_irq_get_status()
125 hdr->func = IMX_SC_IRQ_FUNC_STATUS; in imx_scu_irq_get_status()
126 hdr->size = 2; in imx_scu_irq_get_status()
149 return -EPROBE_DEFER; in imx_scu_irq_group_enable()
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H A Dimx-scu-soc.c1 // SPDX-License-Identifier: GPL-2.0
6 #include <dt-bindings/firmware/imx/rsrc.h>
7 #include <linux/firmware/imx/sci.h>
40 hdr->ver = IMX_SC_RPC_VERSION; in imx_scu_soc_uid()
41 hdr->svc = IMX_SC_RPC_SVC_MISC; in imx_scu_soc_uid()
42 hdr->func = IMX_SC_MISC_FUNC_UNIQUE_ID; in imx_scu_soc_uid()
43 hdr->size = 1; in imx_scu_soc_uid()
64 hdr->ver = IMX_SC_RPC_VERSION; in imx_scu_soc_id()
65 hdr->svc = IMX_SC_RPC_SVC_MISC; in imx_scu_soc_id()
66 hdr->func = IMX_SC_MISC_FUNC_GET_CONTROL; in imx_scu_soc_id()
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/linux/Documentation/devicetree/bindings/thermal/
H A Dfsl,scu-thermal.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/thermal/fsl,scu-thermal.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: i.MX SCU Client Device Node - Thermal Based on SCU Message Protocol
10 - Dong Aisheng <aisheng.dong@nxp.com>
12 description: i.MX SCU Client Device Node
13 Client nodes are maintained as children of the relevant IMX-SCU device node.
16 - $ref: thermal-sensor.yaml#
21 - enum:
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/linux/Documentation/devicetree/bindings/pinctrl/
H A Dfsl,scu-pinctrl.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/pinctrl/fsl,scu-pinctrl.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: i.MX SCU Client Device Node - Pinctrl Based on SCU Message Protocol
10 - Dong Aisheng <aisheng.dong@nxp.com>
12 description: i.MX SCU Client Device Node
13 Client nodes are maintained as children of the relevant IMX-SCU device node.
15 (Documentation/devicetree/bindings/pinctrl/fsl,imx-pinctrl.txt)
18 - $ref: pinctrl.yaml#
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/linux/drivers/input/keyboard/
H A Dimx_sc_key.c1 // SPDX-License-Identifier: GPL-2.0
8 #include <linux/firmware/imx/sci.h>
50 schedule_delayed_work(&priv->check_work, in imx_sc_key_notify()
52 pm_wakeup_event(priv->input->dev.parent, 0); in imx_sc_key_notify()
64 struct input_dev *input = priv->input; in imx_sc_check_for_events()
70 hdr->ver = IMX_SC_RPC_VERSION; in imx_sc_check_for_events()
71 hdr->svc = IMX_SC_RPC_SVC_MISC; in imx_sc_check_for_events()
72 hdr->func = IMX_SC_MISC_FUNC_GET_BUTTON_STATUS; in imx_sc_check_for_events()
73 hdr->size = 1; in imx_sc_check_for_events()
75 error = imx_scu_call_rpc(priv->key_ipc_handle, &msg, true); in imx_sc_check_for_events()
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/linux/Documentation/devicetree/bindings/power/
H A Dfsl,scu-pd.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/power/fsl,scu-pd.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: i.MX SCU Client Device Node - Power Domain Based on SCU Message Protocol
10 - Dong Aisheng <aisheng.dong@nxp.com>
12 description: i.MX SCU Client Device Node
13 Client nodes are maintained as children of the relevant IMX-SCU device node.
14 Power domain bindings based on SCU Message Protocol
17 - $ref: power-domain.yaml#
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/linux/Documentation/devicetree/bindings/nvmem/
H A Dfsl,scu-ocotp.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/nvmem/fsl,scu-ocotp.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: i.MX SCU Client Device Node - OCOTP Based on SCU Message Protocol
10 - Dong Aisheng <aisheng.dong@nxp.com>
12 description: i.MX SCU Client Device Node
13 Client nodes are maintained as children of the relevant IMX-SCU device node.
16 - $ref: nvmem.yaml#
21 - fsl,imx8qm-scu-ocotp
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/linux/Documentation/devicetree/bindings/clock/
H A Dfsl,scu-clk.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/clock/fsl,scu-clk.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: i.MX SCU Client Device Node - Clock Controller Based on SCU Message Protocol
10 - Abel Vesa <abel.vesa@nxp.com>
12 description: i.MX SCU Client Device Node
13 Client nodes are maintained as children of the relevant IMX-SCU device node.
15 (Documentation/devicetree/bindings/clock/clock-bindings.txt)
18 include/dt-bindings/clock/imx8qxp-clock.h
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/linux/Documentation/devicetree/bindings/rtc/
H A Dfsl,scu-rtc.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/rtc/fsl,scu-rtc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: i.MX SCU Client Device Node - RTC Based on SCU Message Protocol
10 - Dong Aisheng <aisheng.dong@nxp.com>
12 description: i.MX SCU Client Device Node
13 Client nodes are maintained as children of the relevant IMX-SCU device node.
16 - $ref: rtc.yaml#
20 const: fsl,imx8qxp-sc-rtc
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/linux/drivers/nvmem/
H A Dimx-ocotp-scu.c1 // SPDX-License-Identifier: GPL-2.0+
10 #include <linux/arm-smccc.h>
11 #include <linux/firmware/imx/sci.h>
13 #include <linux/nvmem-provider.h>
78 const struct ocotp_devtype_data *data = priv->data; in in_hole()
81 for (i = 0; i < data->num_region; i++) { in in_hole()
82 if (data->region[i].flag & HOLE_REGION) { in in_hole()
83 if ((index >= data->region[i].start) && in in_hole()
84 (index <= data->region[i].end)) in in_hole()
95 const struct ocotp_devtype_data *data = priv->data; in in_ecc()
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/linux/drivers/pmdomain/imx/
H A Dscu-pd.c1 // SPDX-License-Identifier: GPL-2.0+
4 * Copyright 2017-2018 NXP
7 * Implementation of the SCU based Power Domains
10 * single global power domain and implement the ->attach|detach_dev()
12 * From within the ->attach_dev(), we could get the OF node for
13 * the device that is being attached and then parse the power-domain
18 * Additionally, we need to implement the ->stop() and ->start()
20 * rather than using the above ->power_on|off() callbacks.
23 * 1. The ->attach_dev() of power domain infrastructure still does
32 * Update: Genpd assigns the ->of_node for the virtual device before it
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/linux/Documentation/devicetree/bindings/gpio/
H A Dfsl,imx8qxp-sc-gpio.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/gpio/fsl,imx8qxp-sc-gpio.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: GPIO driver over IMX SCU firmware API
10 - Shenwei Wang <shenwei.wang@nxp.com>
14 resource pins in SCU domain on i.MX8 platforms.
19 - fsl,imx8qxp-sc-gpio
21 "#gpio-cells":
24 gpio-controller: true
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/linux/drivers/pinctrl/freescale/
H A Dpinctrl-scu.c1 // SPDX-License-Identifier: GPL-2.0+
4 * Copyright 2017-2018 NXP
9 #include <linux/firmware/imx/sci.h>
16 #include "pinctrl-imx.h"
68 hdr->ver = IMX_SC_RPC_VERSION; in imx_pinconf_get_scu()
69 hdr->svc = IMX_SC_RPC_SVC_PAD; in imx_pinconf_get_scu()
70 hdr->func = IMX_SC_PAD_FUNC_GET; in imx_pinconf_get_scu()
71 hdr->size = 2; in imx_pinconf_get_scu()
80 *config = resp->val; in imx_pinconf_get_scu()
101 hdr->ver = IMX_SC_RPC_VERSION; in imx_pinconf_set_scu()
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H A Dpinctrl-imx.h1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * IMX pinmux core definitions
22 * struct imx_pin_mmio - MMIO pin configurations
37 * struct imx_pin_scu - SCU pin configurations
47 * struct imx_pin - describes a single i.MX pin
49 * @conf: config type of this pin, either mmio or scu
55 struct imx_pin_scu scu; member
60 * struct imx_pin_reg - describe a pin reg map
116 #define PAD_CTL_MASK(len) ((1 << len) - 1)
/linux/drivers/watchdog/
H A Dimx_sc_wdt.c1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright 2018-2019 NXP.
6 #include <linux/arm-smccc.h>
7 #include <linux/firmware/imx/sci.h>
87 return -EACCES; in imx_sc_wdt_start()
92 return res.a0 ? -EACCES : 0; in imx_sc_wdt_start()
102 return res.a0 ? -EACCES : 0; in imx_sc_wdt_stop()
110 wdog->timeout = timeout; in imx_sc_wdt_set_timeout()
114 return res.a0 ? -EACCES : 0; in imx_sc_wdt_set_timeout()
123 * SCU firmware calculates pretimeout based on current time in imx_sc_wdt_set_pretimeout()
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