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hwinfo: Support NXP LPC family

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add hwinfo driver support for NXP's LPC family.

Signed-off-by: Mahesh Mahadevan <mahesh.mahadevan@nxp.com>
This commit is contained in:
Mahesh Mahadevan 2021-05-18 10:28:19 -05:00 • committed by Kumar Gala
commit 6dbffcb2a8
6 changed files with 55 additions and 0 deletions
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2
boards/arm/mimxrt685_evk/doc/index.rst
View file

@ -83,6 +83,8 @@ features:
+-----------+------------+-------------------------------------+ +-----------+------------+-------------------------------------+
| CLOCK | on-chip | clock_control | | CLOCK | on-chip | clock_control |
+-----------+------------+-------------------------------------+ +-----------+------------+-------------------------------------+
| HWINFO | on-chip | Unique device serial number |
+-----------+------------+-------------------------------------+
The default configuration can be found in the defconfig file: The default configuration can be found in the defconfig file:

1
drivers/hwinfo/CMakeLists.txt
View file

@ -6,6 +6,7 @@ zephyr_sources_ifdef(CONFIG_HWINFO hwinfo_weak_impl.c)
zephyr_sources_ifdef(CONFIG_HWINFO_STM32 hwinfo_stm32.c) zephyr_sources_ifdef(CONFIG_HWINFO_STM32 hwinfo_stm32.c)
zephyr_sources_ifdef(CONFIG_HWINFO_NRF hwinfo_nrf.c) zephyr_sources_ifdef(CONFIG_HWINFO_NRF hwinfo_nrf.c)
zephyr_sources_ifdef(CONFIG_HWINFO_MCUX_SIM hwinfo_mcux_sim.c) zephyr_sources_ifdef(CONFIG_HWINFO_MCUX_SIM hwinfo_mcux_sim.c)
zephyr_sources_ifdef(CONFIG_HWINFO_MCUX_SYSCON hwinfo_mcux_syscon.c)
zephyr_sources_ifdef(CONFIG_HWINFO_ESP32 hwinfo_esp32.c) zephyr_sources_ifdef(CONFIG_HWINFO_ESP32 hwinfo_esp32.c)
zephyr_sources_ifdef(CONFIG_HWINFO_IMXRT hwinfo_imxrt.c) zephyr_sources_ifdef(CONFIG_HWINFO_IMXRT hwinfo_imxrt.c)
zephyr_sources_ifdef(CONFIG_HWINFO_SAM hwinfo_sam.c) zephyr_sources_ifdef(CONFIG_HWINFO_SAM hwinfo_sam.c)

7
drivers/hwinfo/Kconfig
View file

@ -38,6 +38,13 @@ config HWINFO_MCUX_SIM
help help
Enable NXP kinetis mcux hwinfo driver. Enable NXP kinetis mcux hwinfo driver.
config HWINFO_MCUX_SYSCON
bool "NXP LPC device ID"
default y
depends on HAS_MCUX_SYSCON
help
Enable NXP LPC mcux hwinfo driver.
config HWINFO_IMXRT config HWINFO_IMXRT
bool "NXP i.mx RT device ID" bool "NXP i.mx RT device ID"
default y default y

28
drivers/hwinfo/hwinfo_mcux_syscon.c Normal file
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@ -0,0 +1,28 @@
/*
* Copyright (c) 2021 NXP
*
* SPDX-License-Identifier: Apache-2.0
*/
#define DT_DRV_COMPAT nxp_lpc_uid
#include <drivers/hwinfo.h>
#include <string.h>
#include <sys/byteorder.h>
ssize_t z_impl_hwinfo_get_device_id(uint8_t *buffer, size_t length)
{
uint8_t *uid_addr = (uint8_t *) DT_INST_REG_ADDR(0);
if (buffer == NULL) {
return 0;
}
if (length > DT_INST_REG_SIZE(0)) {
length = DT_INST_REG_SIZE(0);
}
memcpy(buffer, uid_addr, length);
return length;
}

5
dts/arm/nxp/nxp_rt6xx_common.dtsi
View file

@ -66,6 +66,11 @@
#clock-cells = <1>; #clock-cells = <1>;
}; };
uuid: uuid@2f50 {
compatible = "nxp,lpc-uid";
reg = <0x2f50 0x10>;
};
gpio0: gpio@0 { gpio0: gpio@0 {
compatible = "nxp,lpc-gpio"; compatible = "nxp,lpc-gpio";
reg = <0x100000 0x4000>; reg = <0x100000 0x4000>;

12
dts/bindings/hwinfo/nxp,lpc-uid.yaml Normal file
View file

@ -0,0 +1,12 @@
# Copyright (c) 2021 NXP
# SPDX-License-Identifier: Apache-2.0
description: NXP LPC 128-bit Unique identifier
compatible: "nxp,lpc-uid"
include: base.yaml
properties:
reg:
required: true