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{bp-18600} arch: cxd56xx: Fix DMA transfer for large memory size #18639

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Merged
xiaoxiang781216 merged 2 commits into from
Mar 27, 2026
+24 −13
Merged

{bp-18600} arch: cxd56xx: Fix DMA transfer for large memory size #18639

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4f90779
arch: cxd56xx: Fix DMA transfer for large memory size
SPRESENSE Mar 25, 2026
3754b7b
arch: cxd56xx: Fix nxstyle
SPRESENSE Mar 25, 2026
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37 changes: 24 additions & 13 deletions arch/arm/src/cxd56xx/cxd56_dmac.c
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Original file line number Diff line number Diff line change
Expand Up @@ -313,13 +313,13 @@ static int ch2dmac(int ch)
{
switch (ch)
{
case 0: case 1:
case 0 ... 1:
return 1;
case 2: case 3: case 4: case 5: case 6: /* APP IDMAC */
case 2 ... 6: /* APP IDMAC */
return 3;
case 7: case 8: /* APP SKDMAC */
case 7 ... 8: /* APP SKDMAC */
return 2;
default:
default:
return 0;
}
}
Expand All @@ -330,9 +330,12 @@ static struct dmac_register_map *get_device(int ch)

switch (id)
{
case 1: return (struct dmac_register_map *)DMAC1_REG_BASE;
case 2: return (struct dmac_register_map *)DMAC2_REG_BASE;
case 3: return (struct dmac_register_map *)DMAC3_REG_BASE;
case 1:
return (struct dmac_register_map *)DMAC1_REG_BASE;
case 2:
return (struct dmac_register_map *)DMAC2_REG_BASE;
case 3:
return (struct dmac_register_map *)DMAC3_REG_BASE;
}

return NULL;
Expand Down Expand Up @@ -366,13 +369,13 @@ static int get_pmid(int ch)
{
switch (ch)
{
case 0: case 1:
case 0 ... 1:
return PM_APP_ADMAC;
case 2: case 3: case 4: case 5: case 6:
case 2 ... 6:
return PM_APP_IDMAC;
case 7: case 8:
case 7 ... 8:
return PM_APP_SKDMAC;
default:
default:
break; /* may not comes here */
}

Expand Down Expand Up @@ -941,7 +944,11 @@ void cxd56_rxdmasetup(DMA_HANDLE handle, uintptr_t paddr, uintptr_t maddr,
CXD56_DMAC_BSIZE4, CXD56_DMAC_BSIZE4, /* Dest / Src burst size (fixed) */
CXD56_DMAC_MAX_SIZE);

dst += CXD56_DMAC_MAX_SIZE;
if (di)
{
dst += CXD56_DMAC_MAX_SIZE;
}

rest -= CXD56_DMAC_MAX_SIZE;
}

Expand Down Expand Up @@ -1012,7 +1019,11 @@ void cxd56_txdmasetup(DMA_HANDLE handle, uintptr_t paddr, uintptr_t maddr,
CXD56_DMAC_BSIZE1, CXD56_DMAC_BSIZE1, /* Dest / Src burst size (fixed) */
CXD56_DMAC_MAX_SIZE);

src += CXD56_DMAC_MAX_SIZE;
if (si)
{
src += CXD56_DMAC_MAX_SIZE;
}

rest -= CXD56_DMAC_MAX_SIZE;
}

Expand Down