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drivers: hwinfo: sam: Add sam4l hwinfo support

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Add initial version.

Signed-off-by: Gerson Fernando Budke <nandojve@gmail.com>
This commit is contained in:
Gerson Fernando Budke 2020-06-19 00:30:59 -03:00 • committed by Maureen Helm
commit bca8e83cab
3 changed files with 40 additions and 1 deletions
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1
drivers/hwinfo/CMakeLists.txt
View file

@ -9,6 +9,7 @@ zephyr_sources_ifdef(CONFIG_HWINFO_MCUX_SIM hwinfo_mcux_sim.c)
zephyr_sources_ifdef(CONFIG_HWINFO_ESP32 hwinfo_esp32.c)
zephyr_sources_ifdef(CONFIG_HWINFO_IMXRT hwinfo_imxrt.c)
zephyr_sources_ifdef(CONFIG_HWINFO_SAM hwinfo_sam.c)
zephyr_sources_ifdef(CONFIG_HWINFO_SAM4L hwinfo_sam4l.c)
zephyr_sources_ifdef(CONFIG_HWINFO_SAM0 hwinfo_sam0.c)
zephyr_sources_ifdef(CONFIG_HWINFO_LITEX hwinfo_litex.c)
zephyr_sources_ifdef(CONFIG_HWINFO_SHELL hwinfo_shell.c)

10
drivers/hwinfo/Kconfig
View file

@ -55,11 +55,19 @@ config HWINFO_IMXRT
config HWINFO_SAM
bool "Atmel SAM device ID"
default y
depends on SOC_FAMILY_SAM
depends on SOC_FAMILY_SAM && !SOC_SERIES_SAM4L
select HWINFO_HAS_DRIVER
help
Enable Atmel SAM hwinfo driver.
config HWINFO_SAM4L
bool "Atmel SAM4L device ID"
default y
depends on SOC_SERIES_SAM4L
select HWINFO_HAS_DRIVER
help
Enable Atmel SAM4L hwinfo driver.
config HWINFO_SAM0
bool "Atmel SAM0 device ID"
default y

30
drivers/hwinfo/hwinfo_sam4l.c Normal file
View file

@ -0,0 +1,30 @@
/*
* Copyright (c) 2020 Gerson Fernando Budke <nandojve@gmail.com>
*
* SPDX-License-Identifier: Apache-2.0
*/
#define DT_DRV_COMPAT atmel_sam4l_uid
#include <device.h>
#include <drivers/hwinfo.h>
#include <init.h>
#include <soc.h>
#include <string.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 < 0) {
length = DT_INST_REG_SIZE(0);
}
memcpy(buffer, uid_addr, length);
return length;
}