drivers: hwinfo: Adds Ambiq hwinfo support

This commit adds support for the hwinfo for Apollo4P SoCs

Signed-off-by: Richard Wheatley <richard.wheatley@ambiq.com>
This commit is contained in:
Richard Wheatley 2024-05-09 13:38:10 -05:00 committed by Carles Cufí
commit e1e78a5f08
6 changed files with 154 additions and 1 deletions

View file

@ -14,6 +14,7 @@ supported:
- gpio - gpio
- spi - spi
- i2c - i2c
- hwinfo
testing: testing:
ignore_tags: ignore_tags:
- net - net

View file

@ -29,3 +29,4 @@ zephyr_library_sources_ifdef(CONFIG_HWINFO_SMARTBOND hwinfo_smartbond.c)
zephyr_library_sources_ifdef(CONFIG_HWINFO_STM32 hwinfo_stm32.c) zephyr_library_sources_ifdef(CONFIG_HWINFO_STM32 hwinfo_stm32.c)
zephyr_library_sources_ifdef(CONFIG_HWINFO_ANDES hwinfo_andes.c) zephyr_library_sources_ifdef(CONFIG_HWINFO_ANDES hwinfo_andes.c)
zephyr_library_sources_ifdef(CONFIG_HWINFO_RW61X hwinfo_rw61x.c) zephyr_library_sources_ifdef(CONFIG_HWINFO_RW61X hwinfo_rw61x.c)
zephyr_library_sources_ifdef(CONFIG_HWINFO_AMBIQ hwinfo_ambiq.c)

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@ -200,4 +200,13 @@ config HWINFO_RW61X
help help
Enable RW61X hwinfo driver Enable RW61X hwinfo driver
config HWINFO_AMBIQ
bool "AMBIQ hwinfo"
default y
depends on SOC_SERIES_APOLLO4X
select AMBIQ_HAL
select AMBIQ_HAL_USE_HWINFO
help
Enable AMBIQ hwinfo driver
endif endif

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@ -0,0 +1,137 @@
/*
* Copyright (c) 2024 Ambiq
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <am_mcu_apollo.h>
#include <zephyr/drivers/hwinfo.h>
#include <string.h>
#include <zephyr/sys/byteorder.h>
ssize_t z_impl_hwinfo_get_device_id(uint8_t *buffer, size_t length)
{
struct ambiq_hwinfo {
/* Ambiq Chip ID0 */
uint32_t chip_id_0;
/* Ambiq Chip ID1 */
uint32_t chip_id_1;
/* Ambiq Factory Trim Revision */
/* Can be used in Ambiq HAL for additional code support */
uint32_t factory_trim_version;
};
struct ambiq_hwinfo dev_hw_info = {0};
/* Contains the HAL hardware information about the device. */
am_hal_mcuctrl_device_t mcu_ctrl_device;
am_hal_mram_info_read(1, AM_REG_INFO1_TRIM_REV_O / 4, 1, &dev_hw_info.factory_trim_version);
am_hal_mcuctrl_info_get(AM_HAL_MCUCTRL_INFO_DEVICEID, &mcu_ctrl_device);
dev_hw_info.chip_id_0 = mcu_ctrl_device.ui32ChipID0;
dev_hw_info.chip_id_1 = mcu_ctrl_device.ui32ChipID1;
if (length > sizeof(dev_hw_info)) {
length = sizeof(dev_hw_info);
}
dev_hw_info.chip_id_0 = BSWAP_32(dev_hw_info.chip_id_0);
dev_hw_info.chip_id_1 = BSWAP_32(dev_hw_info.chip_id_1);
dev_hw_info.factory_trim_version = BSWAP_32(dev_hw_info.factory_trim_version);
memcpy(buffer, &dev_hw_info, length);
return length;
}
int z_impl_hwinfo_get_reset_cause(uint32_t *cause)
{
uint32_t flags = 0;
uint32_t reset_status = 0;
am_hal_reset_status_t status = {0};
/* Print out reset status register upon entry */
am_hal_reset_status_get(&status);
reset_status = status.eStatus;
/* EXTERNAL PIN */
if (reset_status & AM_HAL_RESET_STATUS_EXTERNAL) {
flags |= RESET_PIN;
}
/* POWER CYCLE */
if (reset_status & AM_HAL_RESET_STATUS_POR) {
flags |= RESET_POR;
}
/* BROWNOUT DETECTOR */
if (reset_status & AM_HAL_RESET_STATUS_BOD) {
flags |= RESET_BROWNOUT;
}
/* SOFTWARE POR */
if (reset_status & AM_HAL_RESET_STATUS_SWPOR) {
flags |= RESET_SOFTWARE;
}
/* SOFTWARE POI */
if (reset_status & AM_HAL_RESET_STATUS_SWPOI) {
flags |= RESET_SOFTWARE;
}
/* DEBUGGER */
if (reset_status & AM_HAL_RESET_STATUS_DEBUGGER) {
flags |= RESET_DEBUG;
}
/* WATCHDOG */
if (reset_status & AM_HAL_RESET_STATUS_WDT) {
flags |= RESET_WATCHDOG;
}
/* BOUNREG */
if (reset_status & AM_HAL_RESET_STATUS_BOUNREG) {
flags |= RESET_HARDWARE;
}
/* BOCORE */
if (reset_status & AM_HAL_RESET_STATUS_BOCORE) {
flags |= RESET_HARDWARE;
}
/* BOMEM */
if (reset_status & AM_HAL_RESET_STATUS_BOMEM) {
flags |= RESET_HARDWARE;
}
/* BOHPMEM */
if (reset_status & AM_HAL_RESET_STATUS_BOHPMEM) {
flags |= RESET_HARDWARE;
}
*cause = flags;
return 0;
}
int z_impl_hwinfo_clear_reset_cause(void)
{
/* SBL maintains the RSTGEN->STAT register in
* INFO1 space even upon clearing RSTGEN->STAT
* register.
* - INFO1_RESETSTATUS
*/
return -ENOSYS;
}
int z_impl_hwinfo_get_supported_reset_cause(uint32_t *supported)
{
*supported = RESET_PIN
| RESET_SOFTWARE
| RESET_POR
| RESET_WATCHDOG
| RESET_HARDWARE
| RESET_BROWNOUT;
return 0;
}

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@ -45,4 +45,9 @@ config AMBIQ_HAL_USE_MSPI
help help
Use the MSPI driver from Ambiq HAL Use the MSPI driver from Ambiq HAL
config AMBIQ_HAL_USE_HWINFO
bool
help
Use the HWINFO driver from Ambiq HAL
endif # AMBIQ_HAL endif # AMBIQ_HAL

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@ -142,7 +142,7 @@ manifest:
groups: groups:
- hal - hal
- name: hal_ambiq - name: hal_ambiq
revision: 705f1cbb1ccbdaac7613eb7b27c208c8f592e0c4 revision: f6858cb3fe3d44945a23d114b7feeeac22ce71cf
path: modules/hal/ambiq path: modules/hal/ambiq
groups: groups:
- hal - hal