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// HiFI4 DSP-viewed address offset translate to host cpu viewwed
static ptrdiff_t xlate_dsp2mpu(ptrdiff_t a)
{
	const ptrdiff_t BANKSIZE = 0x08000u;
	const ptrdiff_t CELLBASE = 0x10000u;
	const ptrdiff_t CELLSIZE = 16;
	const ptrdiff_t cellbank = (a - CELLBASE) / BANKSIZE;
	const ptrdiff_t cellrow = (a - CELLBASE) % BANKSIZE / CELLSIZE;	// 16 bytes granularity
	const unsigned cellpos = (a % CELLSIZE);	// 16 bytes granularity

	if (a < CELLBASE)
		return a;	/* translation not needed. */

	return CELLBASE +
			cellbank * BANKSIZE +
			CELLSIZE * ((cellrow % 2) ? (cellrow / 2) + (BANKSIZE / CELLSIZE / 2) : cellrow / 2) +
			cellpos;
}

static void copy2dsp(uint8_t * pdspmap, const uint8_t * pcpu, unsigned offs, unsigned size)
{
	for (; size --; ++ offs)
	{
		pdspmap [xlate_dsp2mpu(offs)] = pcpu [offs];
	}
}

static void zero2dsp(uint8_t * pdspmap, unsigned offs, unsigned size)
{
	for (; size --; ++ offs)
	{
		pdspmap [xlate_dsp2mpu(offs)] = 0x00;
	}
}

=> echo $(boot_dsp0)
sunxi_flash read 45000000 ${dsp0_partition};bootr 45000000 0 0
=> sunxi_flash read 45000000 ${dsp0_partition};bootr 45000000 0 0
dsp0:uart config fail
dsp0:gpio init config fail
dsp0:find section err