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samples: arch: mpu: mpu_test: use DEVICE_DT_GET

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Use DEVICE_DT_GET to obtain the flash device at compile time. Add
readiness check at main.

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
This commit is contained in:
Gerard Marull-Paretas 2022-03-23 15:05:49 +01:00 • committed by Carles Cufí
commit abe3c1d3c5
1 changed files with 14 additions and 10 deletions
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24
samples/arch/mpu/mpu_test/src/main.c
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@ -7,6 +7,8 @@
#include <stdlib.h>
#include <zephyr.h>
#include <device.h>
#include <devicetree.h>
#include <drivers/flash.h>
#include <shell/shell.h>
@ -27,6 +29,11 @@
#define MTEST_CMD_HELP "Memory Test writes or reads a memory location.\n" \
"Command accepts 1 (Read) or 2 (Write) parameters."
#if defined(CONFIG_SOC_FLASH_MCUX) || defined(CONFIG_SOC_FLASH_LPC) || \
defined(CONFIG_SOC_FLASH_STM32)
static const struct device *flash_dev = DEVICE_DT_GET(DT_CHOSEN(zephyr_flash_controller));
#endif
static int cmd_read(const struct shell *shell, size_t argc, char *argv[])
{
ARG_UNUSED(argc);
@ -46,13 +53,9 @@ static int cmd_write_mcux(const struct shell *shell, size_t argc, char *argv[])
ARG_UNUSED(argc);
ARG_UNUSED(argv);
const struct device *flash_dev;
uint32_t value[2];
uint32_t offset;
flash_dev =
device_get_binding(DT_CHOSEN_ZEPHYR_FLASH_CONTROLLER_LABEL);
/* 128K reserved to the application */
offset = FLASH_MEM + 0x20000;
value[0] = 0xBADC0DE;
@ -75,11 +78,6 @@ static int cmd_write_stm32(const struct shell *shell, size_t argc, char *argv[])
ARG_UNUSED(argc);
ARG_UNUSED(argv);
const struct device *flash_dev;
flash_dev =
device_get_binding(DT_CHOSEN_ZEPHYR_FLASH_CONTROLLER_LABEL);
/* 16K reserved to the application */
uint32_t offset = FLASH_MEM + 0x4000;
uint32_t value = 0xBADC0DE;
@ -143,7 +141,13 @@ static int cmd_mtest(const struct shell *shell, size_t argc, char *argv[])
void main(void)
{
#if defined(CONFIG_SOC_FLASH_MCUX) || defined(CONFIG_SOC_FLASH_LPC) || \
defined(CONFIG_SOC_FLASH_STM32)
if (!device_is_ready(flash_dev)) {
printk("Flash device not ready\n");
return;
}
#endif
}
SHELL_STATIC_SUBCMD_SET_CREATE(sub_mpu,