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memc: stm32_xspi_psram: init shared_multi_heap area

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Initialize the whole psram as a shared_multi_heap_area
if SHARED_MULTI_HEAP is enabled.

Signed-off-by: Alain Volmat <alain.volmat@foss.st.com>
This commit is contained in:
Alain Volmat 2025-06-06 17:21:21 +02:00 • committed by Benjamin Cabé
commit b7f73710b2
1 changed files with 17 additions and 0 deletions
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17
drivers/memc/memc_stm32_xspi_psram.c
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@ -14,11 +14,20 @@
#include <zephyr/drivers/gpio.h>
#include <zephyr/drivers/pinctrl.h>
#include <zephyr/logging/log.h>
#include <zephyr/multi_heap/shared_multi_heap.h>
LOG_MODULE_REGISTER(memc_stm32_xspi_psram, CONFIG_MEMC_LOG_LEVEL);
#define STM32_XSPI_NODE DT_INST_PARENT(0)
#ifdef CONFIG_SHARED_MULTI_HEAP
struct shared_multi_heap_region smh_psram = {
.addr = DT_REG_ADDR(DT_NODELABEL(psram)),
.size = DT_REG_SIZE(DT_NODELABEL(psram)),
.attr = SMH_REG_ATTR_EXTERNAL,
};
#endif
/* Memory registers definition */
#define MR0 0x00000000U
#define MR1 0x00000001U
@ -347,6 +356,14 @@ static int memc_stm32_xspi_psram_init(const struct device *dev)
MODIFY_REG(hxspi.Instance->CR, XSPI_CR_NOPREF, HAL_XSPI_AUTOMATIC_PREFETCH_DISABLE);
#endif
#ifdef CONFIG_SHARED_MULTI_HEAP
shared_multi_heap_pool_init();
ret = shared_multi_heap_add(&smh_psram, NULL);
if (ret < 0) {
return ret;
}
#endif
return 0;
}