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memc: stm32_xspi_psram: allow usage on controllers without prefetch options

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On some STM32 lines, like the h7rs, there aren't XSPI prefetch options.
To support them in the PSRAM driver, conditionally exclude them from
compilation when the options are not available

Signed-off-by: Titouan Christophe <titouan.christophe@mind.be>
This commit is contained in:
Titouan Christophe 2025-04-29 11:11:50 +02:00 • committed by Fabio Baltieri
commit d23b1bd4e0
1 changed files with 8 additions and 2 deletions
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10
drivers/memc/memc_stm32_xspi_psram.c
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@ -206,7 +206,6 @@ static int memc_stm32_xspi_psram_init(const struct device *dev)
const struct memc_stm32_xspi_psram_config *dev_cfg = dev->config;
struct memc_stm32_xspi_psram_data *dev_data = dev->data;
XSPI_HandleTypeDef hxspi = dev_data->hxspi;
XSPI_TypeDef *xspi = hxspi.Instance;
uint32_t ahb_clock_freq;
XSPIM_CfgTypeDef cfg = {0};
XSPI_RegularCmdTypeDef cmd = {0};
@ -332,14 +331,21 @@ static int memc_stm32_xspi_psram_init(const struct device *dev)
}
mem_mapped_cfg.TimeOutActivation = HAL_XSPI_TIMEOUT_COUNTER_DISABLE;
#if defined(XSPI_CR_NOPREF)
mem_mapped_cfg.NoPrefetchData = HAL_XSPI_AUTOMATIC_PREFETCH_ENABLE;
#endif
#if defined(XSPI_CR_NOPREF_AXI)
mem_mapped_cfg.NoPrefetchAXI = HAL_XSPI_AXI_PREFETCH_DISABLE;
#endif
if (HAL_XSPI_MemoryMapped(&hxspi, &mem_mapped_cfg) != HAL_OK) {
return -EIO;
}
MODIFY_REG(xspi->CR, XSPI_CR_NOPREF, HAL_XSPI_AUTOMATIC_PREFETCH_DISABLE);
#if defined(XSPI_CR_NOPREF)
MODIFY_REG(hxspi.Instance->CR, XSPI_CR_NOPREF, HAL_XSPI_AUTOMATIC_PREFETCH_DISABLE);
#endif
return 0;
}