6aabc119b6
Summary: The RouterBoard uses a predefined partition map which doesn't exist in the fdt. This change allows overriding the fdt slicer with a custom slicer, and uses this custom slicer to define the flash map on the RouterBoard RB800. D3305 converts the mpc85xx platform into a base class, so that systems based on the mpc85xx platform can add their own overrides. This change builds on D3305, and creates a RouterBoard (RB800) platform to initialize the slicer override. Reviewed By: nwhitehorn, imp Differential Revision: https://reviews.freebsd.org/D3345
124 lines
3.2 KiB
C
124 lines
3.2 KiB
C
/*-
|
|
* Copyright (c) 2015 Justin Hibbits
|
|
* 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 ``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 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/kernel.h>
|
|
#include <sys/bus.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/slicer.h>
|
|
#include <sys/smp.h>
|
|
|
|
#include <machine/platform.h>
|
|
#include <machine/platformvar.h>
|
|
|
|
#include <dev/nand/nand.h>
|
|
#include <dev/ofw/openfirm.h>
|
|
#include <geom/geom_disk.h>
|
|
|
|
#include <powerpc/mpc85xx/mpc85xx.h>
|
|
|
|
#include "platform_if.h"
|
|
|
|
static int rb_probe(platform_t);
|
|
static int rb_attach(platform_t);
|
|
|
|
static platform_method_t rb_methods[] = {
|
|
PLATFORMMETHOD(platform_probe, rb_probe),
|
|
PLATFORMMETHOD(platform_attach, rb_attach),
|
|
PLATFORMMETHOD_END
|
|
};
|
|
|
|
DEFINE_CLASS_1(rb, rb_platform, rb_methods, 0, mpc85xx_platform);
|
|
|
|
PLATFORM_DEF(rb_platform);
|
|
|
|
/* Slicer operates on the NAND controller, so we have to find the chip. */
|
|
static int
|
|
rb_nand_slicer(device_t dev, struct flash_slice *slices, int *nslices)
|
|
{
|
|
struct nand_chip *chip;
|
|
device_t *children;
|
|
int n;
|
|
|
|
if (device_get_children(dev, &children, &n) != 0) {
|
|
panic("Slicer called on controller with no child!");
|
|
}
|
|
dev = children[0];
|
|
free(children, M_TEMP);
|
|
|
|
if (device_get_children(dev, &children, &n) != 0) {
|
|
panic("Slicer called on controller with nandbus but no child!");
|
|
}
|
|
dev = children[0];
|
|
free(children, M_TEMP);
|
|
|
|
chip = device_get_softc(dev);
|
|
*nslices = 2;
|
|
slices[0].base = 0;
|
|
slices[0].size = 4 * 1024 * 1024;
|
|
slices[0].label = "boot";
|
|
|
|
slices[1].base = 4 * 1024 * 1024;
|
|
slices[1].size = chip->ndisk->d_mediasize - slices[0].size;
|
|
slices[1].label = "rootfs";
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
rb_probe(platform_t plat)
|
|
{
|
|
phandle_t rootnode;
|
|
char model[32];
|
|
|
|
rootnode = OF_finddevice("/");
|
|
|
|
if (OF_getprop(rootnode, "model", model, sizeof(model)) > 0) {
|
|
if (strcmp(model, "RB800") == 0)
|
|
return (BUS_PROBE_SPECIFIC);
|
|
}
|
|
|
|
return (ENXIO);
|
|
}
|
|
|
|
static int
|
|
rb_attach(platform_t plat)
|
|
{
|
|
int error;
|
|
|
|
error = mpc85xx_attach(plat);
|
|
if (error)
|
|
return (error);
|
|
|
|
flash_register_slicer(rb_nand_slicer);
|
|
|
|
return (0);
|
|
}
|