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author | raj <raj@FreeBSD.org> | 2008-10-13 20:07:13 +0000 |
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committer | raj <raj@FreeBSD.org> | 2008-10-13 20:07:13 +0000 |
commit | 3226c137788c6c0c6b82bd1b88fd42a2a8ea4cb8 (patch) | |
tree | d96b4a1062d4a3a8f75bdb30e300bd1a50f23e4f /sys/arm/mv/bus_space.c | |
parent | 000539b88803ce11f549bc8d24154dc9a6b1c386 (diff) | |
download | FreeBSD-src-3226c137788c6c0c6b82bd1b88fd42a2a8ea4cb8.zip FreeBSD-src-3226c137788c6c0c6b82bd1b88fd42a2a8ea4cb8.tar.gz |
Introduce basic support for Marvell families of system-on-chip ARM devices:
* Orion
- 88F5181
- 88F5182
- 88F5281
* Kirkwood
- 88F6281
* Discovery
- MV78100
The above families of SOCs are built around CPU cores compliant with ARMv5TE
instruction set architecture definition. They share a number of integrated
peripherals. This commit brings support for the following basic elements:
* GPIO
* Interrupt controller
* L1, L2 cache
* Timers, watchdog, RTC
* TWSI (I2C)
* UART
Other peripherals drivers will be introduced separately.
Reviewed by: imp, marcel, stass (Thanks guys!)
Obtained from: Marvell, Semihalf
Diffstat (limited to 'sys/arm/mv/bus_space.c')
-rw-r--r-- | sys/arm/mv/bus_space.c | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/sys/arm/mv/bus_space.c b/sys/arm/mv/bus_space.c new file mode 100644 index 0000000..2cdc454 --- /dev/null +++ b/sys/arm/mv/bus_space.c @@ -0,0 +1,162 @@ +/*- + * Copyright (C) 2008 MARVELL INTERNATIONAL LTD. + * All rights reserved. + * + * Developed by Semihalf. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of MARVELL nor the names of contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/bus.h> +#include <sys/kernel.h> +#include <sys/malloc.h> + +#include <machine/bus.h> + +/* + * Bus space functions for Marvell SoC family + */ + +/* Prototypes for all the bus_space structure functions */ +bs_protos(generic); +bs_protos(generic_armv4); + +/* + * The obio bus space tag. This is constant for all instances, so + * we never have to explicitly "create" it. + */ +static struct bus_space _base_tag = { + /* cookie */ + (void *) 0, + + /* mapping/unmapping */ + generic_bs_map, + generic_bs_unmap, + generic_bs_subregion, + + /* allocation/deallocation */ + generic_bs_alloc, + generic_bs_free, + + /* barrier */ + generic_bs_barrier, + + /* read (single) */ + generic_bs_r_1, + generic_armv4_bs_r_2, + generic_bs_r_4, + NULL, + + /* read multiple */ + generic_bs_rm_1, + generic_armv4_bs_rm_2, + generic_bs_rm_4, + NULL, + + /* read region */ + generic_bs_rr_1, + generic_armv4_bs_rr_2, + generic_bs_rr_4, + NULL, + + /* write (single) */ + generic_bs_w_1, + generic_armv4_bs_w_2, + generic_bs_w_4, + NULL, + + /* write multiple */ + generic_bs_wm_1, + generic_armv4_bs_wm_2, + generic_bs_wm_4, + NULL, + + /* write region */ + NULL, + NULL, + NULL, + NULL, + + /* set multiple */ + NULL, + NULL, + NULL, + NULL, + + /* set region */ + NULL, + NULL, + NULL, + NULL, + + /* copy */ + NULL, + NULL, + NULL, + NULL, + + /* read stream (single) */ + NULL, + NULL, + NULL, + NULL, + + /* read multiple stream */ + NULL, + generic_armv4_bs_rm_2, /* bus_space_read_multi_stream_2 */ + NULL, + NULL, + + /* read region stream */ + NULL, + NULL, + NULL, + NULL, + + /* write stream (single) */ + NULL, + NULL, + NULL, + NULL, + + /* write multiple stream */ + NULL, + generic_armv4_bs_wm_2, /* bus_space_write_multi_stream_2 */ + NULL, + NULL, + + /* write region stream */ + NULL, + NULL, + NULL, + NULL +}; + +bus_space_tag_t obio_tag = &_base_tag; |