Function decode_win_idma_setup

freebsd/arm/mv/mv_common.c:1888–1964

}

void
decode_win_idma_setup(u_long base)
{
	uint32_t br, sz;
	int i, j;

	if (pm_is_disabled(CPU_PM_CTRL_IDMA))
		return;
	/*
	 * Disable and clear all IDMA windows, revoke protection for all channels
	 */
	for (i = 0; i < MV_WIN_IDMA_MAX; i++) {
		idma_bare_write(base, i, 1);
		win_idma_br_write(base, i, 0);
		win_idma_sz_write(base, i, 0);
		if (win_idma_can_remap(i) == 1)
			win_idma_har_write(base, i, 0);
	}
	for (i = 0; i < MV_IDMA_CHAN_MAX; i++)
		win_idma_cap_write(base, i, 0);

	/*
	 * Set up access to all active DRAM banks
	 */
	for (i = 0; i < MV_WIN_DDR_MAX; i++)
		if (ddr_is_active(i)) {
			br = ddr_base(i) | (ddr_attr(i) << 8) | ddr_target(i);
			sz = ((ddr_size(i) - 1) & 0xffff0000);

			/* Place DDR entries in non-remapped windows */
			for (j = 0; j < MV_WIN_IDMA_MAX; j++)
				if (win_idma_can_remap(j) != 1 &&
				    idma_bare_read(base, j) == 1) {
					/* Configure window */
					win_idma_br_write(base, j, br);
					win_idma_sz_write(base, j, sz);

					/* Set protection RW on all channels */
					idma_set_prot(base, j, 0x3);

					/* Enable window */
					idma_bare_write(base, j, 0);
					break;
				}
		}

	/*
	 * Remaining targets -- from statically defined table
	 */
	for (i = 0; i < idma_wins_no; i++)
		if (idma_wins[i].target > 0) {
			br = (idma_wins[i].base & 0xffff0000) |
			    (idma_wins[i].attr << 8) | idma_wins[i].target;
			sz = ((idma_wins[i].size - 1) & 0xffff0000);

			/* Set the first free IDMA window */
			for (j = 0; j < MV_WIN_IDMA_MAX; j++) {
				if (idma_bare_read(base, j) == 0)