4e46a66e4a
the Raspberry Pi B we support most of the devices are already supported, however the base address has changed. A few items are not working, or missing. The main ones are: * DMA doesn't work in the sdhci driver. * Enabling vchiq halts the boot, may be interrupt related. * There is no U-Boot port yet so the DTB is embedded in the kernel. The last point will make it difficult to boot FreeBSD, however there is support for the Raspberry Pi 2 in the U-Boot git repo. As I have not tested this it is left as an open task to create a port to build. X-MFC: When the above issues are fixed Sponsored by: ABT Systems Ltd
158 lines
4.1 KiB
C
158 lines
4.1 KiB
C
/*-
|
|
* Copyright (c) 2012 Oleksandr Tymoshenko.
|
|
* Copyright (c) 1994-1998 Mark Brinicombe.
|
|
* Copyright (c) 1994 Brini.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software written for Brini by Mark Brinicombe
|
|
*
|
|
* 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. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by Brini.
|
|
* 4. The name of the company nor the name of the author may be used to
|
|
* endorse or promote products derived from this software without specific
|
|
* prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY BRINI ``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 BRINI 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.
|
|
*
|
|
* from: FreeBSD: //depot/projects/arm/src/sys/arm/at91/kb920x_machdep.c, rev 45
|
|
*/
|
|
|
|
#include "opt_ddb.h"
|
|
#include "opt_platform.h"
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#define _ARM32_BUS_DMA_PRIVATE
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/bus.h>
|
|
|
|
#include <vm/vm.h>
|
|
#include <vm/pmap.h>
|
|
|
|
#include <machine/bus.h>
|
|
#include <machine/devmap.h>
|
|
#include <machine/machdep.h>
|
|
#include <machine/platform.h>
|
|
#include <machine/platformvar.h>
|
|
|
|
#include <dev/fdt/fdt_common.h>
|
|
|
|
#include <arm/broadcom/bcm2835/bcm2835_wdog.h>
|
|
|
|
#include "platform_if.h"
|
|
|
|
static vm_offset_t
|
|
bcm2835_lastaddr(platform_t plat)
|
|
{
|
|
|
|
return (arm_devmap_lastaddr());
|
|
}
|
|
|
|
static void
|
|
bcm2835_late_init(platform_t plat)
|
|
{
|
|
phandle_t system;
|
|
pcell_t cells[2];
|
|
int len;
|
|
|
|
system = OF_finddevice("/system");
|
|
if (system != 0) {
|
|
len = OF_getprop(system, "linux,serial", &cells, sizeof(cells));
|
|
if (len > 0)
|
|
board_set_serial(fdt64_to_cpu(*((uint64_t *)cells)));
|
|
|
|
len = OF_getprop(system, "linux,revision", &cells, sizeof(cells));
|
|
if (len > 0)
|
|
board_set_revision(fdt32_to_cpu(*((uint32_t *)cells)));
|
|
}
|
|
}
|
|
|
|
#ifdef SOC_BCM2835
|
|
/*
|
|
* Set up static device mappings.
|
|
* All on-chip peripherals exist in a 16MB range starting at 0x20000000.
|
|
* Map the entire range using 1MB section mappings.
|
|
*/
|
|
static int
|
|
bcm2835_devmap_init(platform_t plat)
|
|
{
|
|
|
|
arm_devmap_add_entry(0x20000000, 0x01000000);
|
|
return (0);
|
|
}
|
|
#endif
|
|
|
|
#ifdef SOC_BCM2836
|
|
static int
|
|
bcm2836_devmap_init(platform_t plat)
|
|
{
|
|
|
|
arm_devmap_add_entry(0x3f000000, 0x01000000);
|
|
return (0);
|
|
}
|
|
#endif
|
|
|
|
struct arm32_dma_range *
|
|
bus_dma_get_range(void)
|
|
{
|
|
|
|
return (NULL);
|
|
}
|
|
|
|
int
|
|
bus_dma_get_range_nb(void)
|
|
{
|
|
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
cpu_reset()
|
|
{
|
|
bcmwd_watchdog_reset();
|
|
while (1);
|
|
}
|
|
|
|
#ifdef SOC_BCM2835
|
|
static platform_method_t bcm2835_methods[] = {
|
|
PLATFORMMETHOD(platform_devmap_init, bcm2835_devmap_init),
|
|
PLATFORMMETHOD(platform_lastaddr, bcm2835_lastaddr),
|
|
PLATFORMMETHOD(platform_late_init, bcm2835_late_init),
|
|
|
|
PLATFORMMETHOD_END,
|
|
};
|
|
FDT_PLATFORM_DEF(bcm2835, "bcm2835", 0, "raspberrypi,model-b");
|
|
#endif
|
|
|
|
#ifdef SOC_BCM2836
|
|
static platform_method_t bcm2836_methods[] = {
|
|
PLATFORMMETHOD(platform_devmap_init, bcm2836_devmap_init),
|
|
PLATFORMMETHOD(platform_lastaddr, bcm2835_lastaddr),
|
|
PLATFORMMETHOD(platform_late_init, bcm2835_late_init),
|
|
|
|
PLATFORMMETHOD_END,
|
|
};
|
|
FDT_PLATFORM_DEF(bcm2836, "bcm2836", 0, "brcm,bcm2709");
|
|
#endif
|