1 /* Driver for Calypso DMA controller */
3 /* (C) 2010 by Harald Welte <laforge@gnumonks.org>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License along
18 * with this program; if not, write to the Free Software Foundation, Inc.,
19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
25 #define BASE_ADDR_DMA 0xfffffc00
28 CONTROLLER_CONF = 0x00,
31 #define DMA_REG(m) (BASE_ADDR_DMA + (m))
33 #define DMA_RAD(x) DMA_REG((x)*0x10 + 0x0)
34 #define DMA_RDPATH(x) DMA_REG((x)*0x10 + 0x2)
35 #define DMA_AAD(x) DMA_REG((x)*0x10 + 0x4)
36 #define DMA_ALGTH(x) DMA_REG((x)*0x10 + 0x6)
37 #define DMA_CTRL(x) DMA_REG((x)*0x10 + 0x8)
38 #define DMA_CUR_OFF_API(x) DMA_REG((x)*0x10 + 0xa)
42 /* DMA 1 (RIF Tx), 2 (RIF Rx) allocated to DSP, all others to ARM */
43 writew(0x000c, DMA_REG(ALLOC_CONFIG));