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pinmux: RV32M1: introduce pinmux driver / DT bindings

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Add a pinmux driver.

Signed-off-by: Michael Scott <mike@foundries.io>
Signed-off-by: Marti Bolivar <marti@foundries.io>
This commit is contained in:
Michael Scott 2018-11-07 10:13:52 -08:00 • committed by Anas Nashif
commit cdb1714c6c
7 changed files with 268 additions and 0 deletions
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1
drivers/pinmux/CMakeLists.txt
View file

@ -8,6 +8,7 @@ zephyr_sources_ifdef(CONFIG_PINMUX_QMSI pinmux_qmsi.c)
zephyr_sources_ifdef(CONFIG_PINMUX_STM32 stm32/pinmux_stm32.c)
zephyr_sources_ifdef(CONFIG_PINMUX_SAM0 pinmux_sam0.c)
zephyr_sources_ifdef(CONFIG_PINMUX_INTEL_S1000 pinmux_intel_s1000.c)
zephyr_sources_ifdef(CONFIG_PINMUX_RV32M1 pinmux_rv32m1.c)
# "runtime" pinmux
add_subdirectory_ifdef(CONFIG_PINMUX_DEV dev)

2
drivers/pinmux/Kconfig
View file

@ -61,4 +61,6 @@ source "drivers/pinmux/Kconfig.sam0"
source "drivers/pinmux/Kconfig.intel_s1000"
source "drivers/pinmux/Kconfig.rv32m1"
endif # PINMUX

67
drivers/pinmux/Kconfig.rv32m1 Normal file
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@ -0,0 +1,67 @@
# Kconfig - RV31M1 SDK pinmux
#
# Copyright (c) 2018 Foundries.io
#
# SPDX-License-Identifier: Apache-2.0
#
menuconfig PINMUX_RV32M1
bool "RV32M1 pinmux driver"
depends on PINMUX && SOC_OPENISA_RV32M1_RISCV32
help
Enable the RV32M1 pinmux driver.
if PINMUX_RV32M1
config PINMUX_RV32M1_PORTA
bool "Port A"
help
Enable Port A.
config PINMUX_RV32M1_PORTA_NAME
string "Pinmux Port A driver name"
depends on PINMUX_RV32M1_PORTA
default "porta"
config PINMUX_RV32M1_PORTB
bool "Port B"
help
Enable Port B.
config PINMUX_RV32M1_PORTB_NAME
string "Pinmux Port B driver name"
depends on PINMUX_RV32M1_PORTB
default "portb"
config PINMUX_RV32M1_PORTC
bool "Port C"
help
Enable Port C.
config PINMUX_RV32M1_PORTC_NAME
string "Pinmux Port C driver name"
depends on PINMUX_RV32M1_PORTC
default "portc"
config PINMUX_RV32M1_PORTD
bool "Port D"
help
Enable Port D.
config PINMUX_RV32M1_PORTD_NAME
string "Pinmux Port D driver name"
depends on PINMUX_RV32M1_PORTD
default "portd"
config PINMUX_RV32M1_PORTE
bool "Port E"
depends on RV32M1_INTMUX
help
Enable Port E.
config PINMUX_RV32M1_PORTE_NAME
string "Pinmux Port E driver name"
depends on PINMUX_RV32M1_PORTE
default "porte"
endif # PINMUX_RV32M1

129
drivers/pinmux/pinmux_rv32m1.c Normal file
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@ -0,0 +1,129 @@
/*
* Copyright (c) 2016 Freescale Semiconductor, Inc.
* Copyright (c) 2018 Foundries.io
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <errno.h>
#include <device.h>
#include <pinmux.h>
#include <fsl_common.h>
#include <fsl_clock.h>
struct pinmux_rv32m1_config {
clock_ip_name_t clock_ip_name;
PORT_Type *base;
};
static int pinmux_rv32m1_set(struct device *dev, u32_t pin, u32_t func)
{
const struct pinmux_rv32m1_config *config = dev->config->config_info;
PORT_Type *base = config->base;
base->PCR[pin] = (base->PCR[pin] & ~PORT_PCR_MUX_MASK) | func;
return 0;
}
static int pinmux_rv32m1_get(struct device *dev, u32_t pin, u32_t *func)
{
const struct pinmux_rv32m1_config *config = dev->config->config_info;
PORT_Type *base = config->base;
*func = base->PCR[pin] & ~PORT_PCR_MUX_MASK;
return 0;
}
static int pinmux_rv32m1_pullup(struct device *dev, u32_t pin, u8_t func)
{
return -ENOTSUP;
}
static int pinmux_rv32m1_input(struct device *dev, u32_t pin, u8_t func)
{
return -ENOTSUP;
}
static int pinmux_rv32m1_init(struct device *dev)
{
const struct pinmux_rv32m1_config *config = dev->config->config_info;
CLOCK_EnableClock(config->clock_ip_name);
return 0;
}
static const struct pinmux_driver_api pinmux_rv32m1_driver_api = {
.set = pinmux_rv32m1_set,
.get = pinmux_rv32m1_get,
.pullup = pinmux_rv32m1_pullup,
.input = pinmux_rv32m1_input,
};
#ifdef CONFIG_PINMUX_RV32M1_PORTA
static const struct pinmux_rv32m1_config pinmux_rv32m1_porta_config = {
.base = (PORT_Type *)PINMUX_A_BASE_ADDRESS,
.clock_ip_name = kCLOCK_PortA,
};
DEVICE_AND_API_INIT(pinmux_porta, CONFIG_PINMUX_RV32M1_PORTA_NAME,
&pinmux_rv32m1_init,
NULL, &pinmux_rv32m1_porta_config,
PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEFAULT,
&pinmux_rv32m1_driver_api);
#endif
#ifdef CONFIG_PINMUX_RV32M1_PORTB
static const struct pinmux_rv32m1_config pinmux_rv32m1_portb_config = {
.base = (PORT_Type *)PINMUX_B_BASE_ADDRESS,
.clock_ip_name = kCLOCK_PortB,
};
DEVICE_AND_API_INIT(pinmux_portb, CONFIG_PINMUX_RV32M1_PORTB_NAME,
&pinmux_rv32m1_init,
NULL, &pinmux_rv32m1_portb_config,
PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEFAULT,
&pinmux_rv32m1_driver_api);
#endif
#ifdef CONFIG_PINMUX_RV32M1_PORTC
static const struct pinmux_rv32m1_config pinmux_rv32m1_portc_config = {
.base = (PORT_Type *)PINMUX_C_BASE_ADDRESS,
.clock_ip_name = kCLOCK_PortC,
};
DEVICE_AND_API_INIT(pinmux_portc, CONFIG_PINMUX_RV32M1_PORTC_NAME,
&pinmux_rv32m1_init,
NULL, &pinmux_rv32m1_portc_config,
PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEFAULT,
&pinmux_rv32m1_driver_api);
#endif
#ifdef CONFIG_PINMUX_RV32M1_PORTD
static const struct pinmux_rv32m1_config pinmux_rv32m1_portd_config = {
.base = (PORT_Type *)PINMUX_D_BASE_ADDRESS,
.clock_ip_name = kCLOCK_PortD,
};
DEVICE_AND_API_INIT(pinmux_portd, CONFIG_PINMUX_RV32M1_PORTD_NAME,
&pinmux_rv32m1_init,
NULL, &pinmux_rv32m1_portd_config,
PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEFAULT,
&pinmux_rv32m1_driver_api);
#endif
#ifdef CONFIG_PINMUX_RV32M1_PORTE
static const struct pinmux_rv32m1_config pinmux_rv32m1_porte_config = {
.base = (PORT_Type *)PINMUX_E_BASE_ADDRESS,
.clock_ip_name = kCLOCK_PortE,
};
DEVICE_AND_API_INIT(pinmux_porte, CONFIG_PINMUX_RV32M1_PORTE_NAME,
&pinmux_rv32m1_init,
NULL, &pinmux_rv32m1_porte_config,
PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEFAULT,
&pinmux_rv32m1_driver_api);
#endif

31
dts/bindings/pinctrl/openisa,rv32m1-pinmux.yaml Normal file
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@ -0,0 +1,31 @@
---
title: RV32M1 Pinmux
version: 0.1
description: >
This is a representation of the RV32M1 Pinmux node
properties:
compatible:
type: string
category: required
description: compatible strings
constraint: "openisa,rv32m1-pinmux"
generation: define
reg:
type: int
description: mmio register space
generation: define
category: required
clocks:
type: array
description: clock gate information
generation: define
category: required
"#cells":
- pin
- function
...

35
dts/riscv32/rv32m1_ri5cy.dtsi
View file

@ -14,6 +14,11 @@
pcc-1 = &pcc1;
intmux = &intmux;
system-lptmr = &lptmr0;
pinmux-a = &pinmux_a;
pinmux-b = &pinmux_b;
pinmux-c = &pinmux_c;
pinmux-d = &pinmux_d;
pinmux-e = &pinmux_e;
};
cpus {
@ -108,5 +113,35 @@
interrupts = <INTMUX_LEVEL2_IRQ(INTMUX_CH1, 22)>;
label = "LPTMR_2";
};
pinmux_a: pinmux@40046000 {
compatible = "openisa,rv32m1-pinmux";
reg = <0x40046000 0xd0>;
clocks = <&pcc0 0x118>;
};
pinmux_b: pinmux@40047000 {
compatible = "openisa,rv32m1-pinmux";
reg = <0x40047000 0xd0>;
clocks = <&pcc0 0x11c>;
};
pinmux_c: pinmux@40048000 {
compatible = "openisa,rv32m1-pinmux";
reg = <0x40048000 0xd0>;
clocks = <&pcc0 0x120>;
};
pinmux_d: pinmux@40049000 {
compatible = "openisa,rv32m1-pinmux";
reg = <0x40049000 0xd0>;
clocks = <&pcc0 0x124>;
};
pinmux_e: pinmux@41037000 {
compatible = "openisa,rv32m1-pinmux";
reg = <0x41037000 0xd0>;
clocks = <&pcc1 0xdc>;
};
};
};

3
soc/riscv32/openisa_rv32m1/Kconfig.defconfig
View file

@ -167,4 +167,7 @@ config RV32M1_INTMUX_CHANNEL_7
endif # MULTI_LEVEL_INTERRUPTS
config PINMUX_RV32M1
def_bool y
endif # SOC_OPENISA_RV32M1_RISCV32