2007-10-29 00:42:18 +01:00
|
|
|
/*
|
|
|
|
* PowerMac NVRAM emulation
|
|
|
|
*
|
|
|
|
* Copyright (c) 2005-2007 Fabrice Bellard
|
|
|
|
* Copyright (c) 2007 Jocelyn Mayer
|
|
|
|
*
|
|
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
|
|
* in the Software without restriction, including without limitation the rights
|
|
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
|
|
* furnished to do so, subject to the following conditions:
|
|
|
|
*
|
|
|
|
* The above copyright notice and this permission notice shall be included in
|
|
|
|
* all copies or substantial portions of the Software.
|
|
|
|
*
|
|
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
|
|
* THE SOFTWARE.
|
|
|
|
*/
|
2013-02-04 15:40:22 +01:00
|
|
|
#include "hw/hw.h"
|
|
|
|
#include "hw/firmware_abi.h"
|
2012-12-17 18:20:04 +01:00
|
|
|
#include "sysemu/sysemu.h"
|
2013-02-04 15:40:22 +01:00
|
|
|
#include "hw/ppc/mac.h"
|
2007-10-29 00:42:18 +01:00
|
|
|
|
2008-12-24 10:38:16 +01:00
|
|
|
/* debug NVR */
|
|
|
|
//#define DEBUG_NVR
|
|
|
|
|
|
|
|
#ifdef DEBUG_NVR
|
2009-05-13 19:53:17 +02:00
|
|
|
#define NVR_DPRINTF(fmt, ...) \
|
|
|
|
do { printf("NVR: " fmt , ## __VA_ARGS__); } while (0)
|
2008-12-24 10:38:16 +01:00
|
|
|
#else
|
2009-05-13 19:53:17 +02:00
|
|
|
#define NVR_DPRINTF(fmt, ...)
|
2008-12-24 10:38:16 +01:00
|
|
|
#endif
|
|
|
|
|
2008-12-27 00:05:23 +01:00
|
|
|
#define DEF_SYSTEM_SIZE 0xc10
|
|
|
|
|
2007-10-29 00:42:18 +01:00
|
|
|
/* Direct access to NVRAM */
|
2013-01-24 00:03:58 +01:00
|
|
|
uint8_t macio_nvram_read(MacIONVRAMState *s, uint32_t addr)
|
2007-10-29 00:42:18 +01:00
|
|
|
{
|
|
|
|
uint32_t ret;
|
|
|
|
|
2013-01-24 00:03:58 +01:00
|
|
|
if (addr < s->size) {
|
2007-10-29 00:42:18 +01:00
|
|
|
ret = s->data[addr];
|
2013-01-24 00:03:58 +01:00
|
|
|
} else {
|
2007-10-29 00:42:18 +01:00
|
|
|
ret = -1;
|
2013-01-24 00:03:58 +01:00
|
|
|
}
|
|
|
|
NVR_DPRINTF("read addr %04" PRIx32 " val %" PRIx8 "\n", addr, ret);
|
2007-10-29 00:42:18 +01:00
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
2013-01-24 00:03:58 +01:00
|
|
|
void macio_nvram_write(MacIONVRAMState *s, uint32_t addr, uint8_t val)
|
2007-10-29 00:42:18 +01:00
|
|
|
{
|
2013-01-24 00:03:58 +01:00
|
|
|
NVR_DPRINTF("write addr %04" PRIx32 " val %" PRIx8 "\n", addr, val);
|
|
|
|
if (addr < s->size) {
|
2007-10-29 00:42:18 +01:00
|
|
|
s->data[addr] = val;
|
2013-01-24 00:03:58 +01:00
|
|
|
}
|
2007-10-29 00:42:18 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
/* macio style NVRAM device */
|
2012-10-23 12:30:10 +02:00
|
|
|
static void macio_nvram_writeb(void *opaque, hwaddr addr,
|
2011-08-08 15:09:17 +02:00
|
|
|
uint64_t value, unsigned size)
|
2007-10-29 00:42:18 +01:00
|
|
|
{
|
|
|
|
MacIONVRAMState *s = opaque;
|
2007-11-04 02:16:04 +01:00
|
|
|
|
2009-02-07 11:48:26 +01:00
|
|
|
addr = (addr >> s->it_shift) & (s->size - 1);
|
2007-10-29 00:42:18 +01:00
|
|
|
s->data[addr] = value;
|
2013-01-24 00:03:58 +01:00
|
|
|
NVR_DPRINTF("writeb addr %04" PHYS_PRIx " val %" PRIx64 "\n", addr, value);
|
2007-10-29 00:42:18 +01:00
|
|
|
}
|
|
|
|
|
2012-10-23 12:30:10 +02:00
|
|
|
static uint64_t macio_nvram_readb(void *opaque, hwaddr addr,
|
2011-08-08 15:09:17 +02:00
|
|
|
unsigned size)
|
2007-10-29 00:42:18 +01:00
|
|
|
{
|
|
|
|
MacIONVRAMState *s = opaque;
|
|
|
|
uint32_t value;
|
|
|
|
|
2009-02-07 11:48:26 +01:00
|
|
|
addr = (addr >> s->it_shift) & (s->size - 1);
|
2007-10-29 00:42:18 +01:00
|
|
|
value = s->data[addr];
|
2008-12-24 10:38:16 +01:00
|
|
|
NVR_DPRINTF("readb addr %04x val %x\n", (int)addr, value);
|
2007-10-29 00:42:18 +01:00
|
|
|
|
|
|
|
return value;
|
|
|
|
}
|
|
|
|
|
2011-08-08 15:09:17 +02:00
|
|
|
static const MemoryRegionOps macio_nvram_ops = {
|
|
|
|
.read = macio_nvram_readb,
|
|
|
|
.write = macio_nvram_writeb,
|
2013-01-24 00:03:59 +01:00
|
|
|
.endianness = DEVICE_BIG_ENDIAN,
|
2007-10-29 00:42:18 +01:00
|
|
|
};
|
|
|
|
|
2010-12-03 01:59:09 +01:00
|
|
|
static const VMStateDescription vmstate_macio_nvram = {
|
|
|
|
.name = "macio_nvram",
|
|
|
|
.version_id = 1,
|
|
|
|
.minimum_version_id = 1,
|
|
|
|
.minimum_version_id_old = 1,
|
|
|
|
.fields = (VMStateField[]) {
|
|
|
|
VMSTATE_VBUFFER_UINT32(data, MacIONVRAMState, 0, NULL, 0, size),
|
|
|
|
VMSTATE_END_OF_LIST()
|
|
|
|
}
|
|
|
|
};
|
2008-12-30 20:01:19 +01:00
|
|
|
|
|
|
|
|
2013-01-24 00:04:00 +01:00
|
|
|
static void macio_nvram_reset(DeviceState *dev)
|
2008-12-28 19:27:10 +01:00
|
|
|
{
|
|
|
|
}
|
|
|
|
|
2013-01-24 00:04:00 +01:00
|
|
|
static void macio_nvram_realizefn(DeviceState *dev, Error **errp)
|
2007-10-29 00:42:18 +01:00
|
|
|
{
|
2013-01-24 00:04:00 +01:00
|
|
|
SysBusDevice *d = SYS_BUS_DEVICE(dev);
|
|
|
|
MacIONVRAMState *s = MACIO_NVRAM(dev);
|
2007-11-04 02:16:04 +01:00
|
|
|
|
2013-01-24 00:04:00 +01:00
|
|
|
s->data = g_malloc0(s->size);
|
2008-12-27 00:05:15 +01:00
|
|
|
|
2011-08-08 15:09:17 +02:00
|
|
|
memory_region_init_io(&s->mem, &macio_nvram_ops, s, "macio-nvram",
|
2013-01-24 00:04:00 +01:00
|
|
|
s->size << s->it_shift);
|
|
|
|
sysbus_init_mmio(d, &s->mem);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void macio_nvram_unrealizefn(DeviceState *dev, Error **errp)
|
|
|
|
{
|
|
|
|
MacIONVRAMState *s = MACIO_NVRAM(dev);
|
|
|
|
|
|
|
|
g_free(s->data);
|
|
|
|
}
|
2007-10-29 00:42:18 +01:00
|
|
|
|
2013-01-24 00:04:00 +01:00
|
|
|
static Property macio_nvram_properties[] = {
|
|
|
|
DEFINE_PROP_UINT32("size", MacIONVRAMState, size, 0),
|
|
|
|
DEFINE_PROP_UINT32("it_shift", MacIONVRAMState, it_shift, 0),
|
|
|
|
DEFINE_PROP_END_OF_LIST()
|
|
|
|
};
|
|
|
|
|
|
|
|
static void macio_nvram_class_init(ObjectClass *oc, void *data)
|
|
|
|
{
|
|
|
|
DeviceClass *dc = DEVICE_CLASS(oc);
|
|
|
|
|
|
|
|
dc->realize = macio_nvram_realizefn;
|
|
|
|
dc->unrealize = macio_nvram_unrealizefn;
|
|
|
|
dc->reset = macio_nvram_reset;
|
|
|
|
dc->vmsd = &vmstate_macio_nvram;
|
|
|
|
dc->props = macio_nvram_properties;
|
2007-10-29 00:42:18 +01:00
|
|
|
}
|
|
|
|
|
2013-01-24 00:04:00 +01:00
|
|
|
static const TypeInfo macio_nvram_type_info = {
|
|
|
|
.name = TYPE_MACIO_NVRAM,
|
|
|
|
.parent = TYPE_SYS_BUS_DEVICE,
|
|
|
|
.instance_size = sizeof(MacIONVRAMState),
|
|
|
|
.class_init = macio_nvram_class_init,
|
|
|
|
};
|
|
|
|
|
|
|
|
static void macio_nvram_register_types(void)
|
2007-11-04 02:16:04 +01:00
|
|
|
{
|
2013-01-24 00:04:00 +01:00
|
|
|
type_register_static(&macio_nvram_type_info);
|
2007-11-04 02:16:04 +01:00
|
|
|
}
|
|
|
|
|
2008-12-24 21:26:14 +01:00
|
|
|
/* Set up a system OpenBIOS NVRAM partition */
|
2007-10-29 00:42:18 +01:00
|
|
|
void pmac_format_nvram_partition (MacIONVRAMState *nvr, int len)
|
|
|
|
{
|
2008-12-24 21:26:14 +01:00
|
|
|
unsigned int i;
|
|
|
|
uint32_t start = 0, end;
|
|
|
|
struct OpenBIOS_nvpart_v1 *part_header;
|
|
|
|
|
|
|
|
// OpenBIOS nvram variables
|
|
|
|
// Variable partition
|
|
|
|
part_header = (struct OpenBIOS_nvpart_v1 *)nvr->data;
|
|
|
|
part_header->signature = OPENBIOS_PART_SYSTEM;
|
|
|
|
pstrcpy(part_header->name, sizeof(part_header->name), "system");
|
|
|
|
|
|
|
|
end = start + sizeof(struct OpenBIOS_nvpart_v1);
|
|
|
|
for (i = 0; i < nb_prom_envs; i++)
|
|
|
|
end = OpenBIOS_set_var(nvr->data, end, prom_envs[i]);
|
|
|
|
|
|
|
|
// End marker
|
|
|
|
nvr->data[end++] = '\0';
|
|
|
|
|
|
|
|
end = start + ((end - start + 15) & ~15);
|
2008-12-27 00:05:23 +01:00
|
|
|
/* XXX: OpenBIOS is not able to grow up a partition. Leave some space for
|
|
|
|
new variables. */
|
|
|
|
if (end < DEF_SYSTEM_SIZE)
|
|
|
|
end = DEF_SYSTEM_SIZE;
|
2008-12-24 21:26:14 +01:00
|
|
|
OpenBIOS_finish_partition(part_header, end - start);
|
|
|
|
|
|
|
|
// free partition
|
|
|
|
start = end;
|
|
|
|
part_header = (struct OpenBIOS_nvpart_v1 *)&nvr->data[start];
|
|
|
|
part_header->signature = OPENBIOS_PART_FREE;
|
|
|
|
pstrcpy(part_header->name, sizeof(part_header->name), "free");
|
|
|
|
|
|
|
|
end = len;
|
|
|
|
OpenBIOS_finish_partition(part_header, end - start);
|
2007-10-29 00:42:18 +01:00
|
|
|
}
|
2013-01-24 00:04:00 +01:00
|
|
|
|
|
|
|
type_init(macio_nvram_register_types)
|