freebsd-dev/sys/arm/freescale/vybrid/vf_common.c
Ruslan Bukin 5c263f43ef Add support for Freescale Vybrid Family VF600 heterogeneous
ARM Cortex-A5/M4 SoC (M4 core is not used in this work).

Support includes device drivers for:
- NAND Flash Controller (NFC)
- USB Enhanced Host Controller Interface (EHCI)
- General-Purpose Input/Output (GPIO)
- Universal Asynchronous Receiver/Transmitter (UART)

Also supported:
- Generic Interrupt Controller (GIC)
- MPCore timer
- ffec ethernet driver

Reviewed by:	ray
Approved by:	cognet (mentor)
2013-11-12 18:02:56 +00:00

87 lines
2.4 KiB
C

/*-
* Copyright (c) 2013 Ruslan Bukin <br@bsdpad.com>
* All rights reserved.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE 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 THE 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 <dev/fdt/fdt_common.h>
#include <dev/ofw/openfirm.h>
#include <machine/bus.h>
#include <machine/fdt.h>
#include <arm/freescale/vybrid/vf_src.h>
void
cpu_reset(void)
{
phandle_t src;
uint32_t addr, paddr;
bus_addr_t vaddr;
if (src_swreset() == 0)
goto end;
src = OF_finddevice("src");
if ((src != 0) && (OF_getprop(src, "reg", &paddr, sizeof(paddr))) > 0) {
addr = fdt32_to_cpu(paddr);
if (bus_space_map(fdtbus_bs_tag, addr, 0x10, 0, &vaddr) == 0) {
bus_space_write_4(fdtbus_bs_tag, vaddr, 0x00, SW_RST);
}
}
end:
while (1);
}
struct fdt_fixup_entry fdt_fixup_table[] = {
{ NULL, NULL }
};
static int
fdt_pic_decode_ic(phandle_t node, pcell_t *intr, int *interrupt, int *trig,
int *pol)
{
if (!fdt_is_compatible(node, "arm,gic"))
return (ENXIO);
*interrupt = fdt32_to_cpu(intr[0]);
*trig = INTR_TRIGGER_CONFORM;
*pol = INTR_POLARITY_CONFORM;
return (0);
}
fdt_pic_decode_t fdt_pic_table[] = {
&fdt_pic_decode_ic,
NULL
};