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soc: arm: nxp_imx: add support for SMARTDMA for RT5xx

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Add support for SMARTDMA to RT5xx SOCs. SMARTDMA ram banks will be
powered up, so code can be programmed into this region for the SMARTDMA
engine.

Signed-off-by: Daniel DeGrasse <daniel.degrasse@nxp.com>
This commit is contained in:
Daniel DeGrasse 2023-04-05 17:11:44 +00:00 committed by Carles Cufí
parent 8d2f4633f2
commit 9e5188353e
2 changed files with 19 additions and 0 deletions
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9
dts/arm/nxp/nxp_rt5xx_common.dtsi
View file

@ -476,6 +476,15 @@
#io-channel-cells = <1>;
};
smartdma: dma@27020 {
compatible = "nxp,smartdma";
reg = <0x27020 0x1000>;
program-mem = <0x24100000>;
interrupts = <73 0>;
status = "disabled";
#dma-cells = <0>;
};
ctimer0: ctimer@28000 {
compatible = "nxp,lpc-ctimer";
reg = <0x28000 0x1000>;

10
soc/arm/nxp_imx/rt5xx/soc.c
View file

@ -364,6 +364,16 @@ static void clock_init(void)
RESET_PeripheralReset(kSDIO0_RST_SHIFT_RSTn);
#endif
#if DT_NODE_HAS_STATUS(DT_NODELABEL(smartdma), okay) && CONFIG_DMA_MCUX_SMARTDMA
/* Power up SMARTDMA ram */
POWER_DisablePD(kPDRUNCFG_APD_SMARTDMA_SRAM);
POWER_DisablePD(kPDRUNCFG_PPD_SMARTDMA_SRAM);
POWER_ApplyPD();
RESET_ClearPeripheralReset(kSMART_DMA_RST_SHIFT_RSTn);
CLOCK_EnableClock(kCLOCK_Smartdma);
#endif
DT_FOREACH_STATUS_OKAY(nxp_lpc_ctimer, CTIMER_CLOCK_SETUP)
/* Set up dividers. */