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drivers: net: fsl-mc: add support for MC reserved memory

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Add support for declaring in device tree the reserved memory ranges
required for MC. Since the MC firmware acts as any DMA master present
in the SoC, the reserved memory ranges need also be identity mapped
in the SMMU, so create the required 'iommu-addresses' property in
the reserved memory nodes.
For now this support is used only on LX2160A SoCs.

Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
This commit is contained in:
Laurentiu Tudor
2023-09-27 18:30:47 +03:00
committed by Peng Fan
parent b9112cdfb5
commit 1dd7b56634
3 changed files with 112 additions and 0 deletions
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include/fsl-mc/fsl_mc.h
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@@ -66,6 +66,7 @@ int get_mc_boot_status(void);
int get_dpl_apply_status(void);
int is_lazy_dpl_addr_valid(void);
void fdt_fixup_mc_ddr(u64 *base, u64 *size);
void fdt_reserve_mc_mem(void *blob, u32 mc_icid);
#ifdef CFG_SYS_LS_MC_DRAM_AIOP_IMG_OFFSET
int get_aiop_apply_status(void);
#endif