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pflash_cfi0x: QOMified 

QOMified the pflash_cfi0x so machine models can connect them up in custom ways.

Kept the pflash_cfi0x_register functions as is. They can still be used to
create a flash straight onto system memory.

Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Crosthwaite 2012-10-30 07:45:11 +00:00 committed by Peter Maydell
parent be65f89992
commit 368a354f02
2 changed files with 214 additions and 87 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

141
hw/pflash_cfi01.c
View File

@ -42,6 +42,7 @@
#include "qemu-timer.h"
#include "exec-memory.h"
#include "host-utils.h"
#include "sysbus.h"
#define PFLASH_BUG(fmt, ...) \
do { \
@ -60,21 +61,28 @@ do { \
#endif
struct pflash_t {
SysBusDevice busdev;
BlockDriverState *bs;
hwaddr sector_len;
int width;
uint32_t nb_blocs;
uint64_t sector_len;
uint8_t width;
uint8_t be;
int wcycle; /* if 0, the flash is read normally */
int bypass;
int ro;
uint8_t cmd;
uint8_t status;
uint16_t ident[4];
uint16_t ident0;
uint16_t ident1;
uint16_t ident2;
uint16_t ident3;
uint8_t cfi_len;
uint8_t cfi_table[0x52];
hwaddr counter;
unsigned int writeblock_size;
QEMUTimer *timer;
MemoryRegion mem;
char *name;
void *storage;
};
@ -166,11 +174,11 @@ static uint32_t pflash_read (pflash_t *pfl, hwaddr offset,
case 0x90:
switch (boff) {
case 0:
ret = pfl->ident[0] << 8 | pfl->ident[1];
ret = pfl->ident0 << 8 | pfl->ident1;
DPRINTF("%s: Manufacturer Code %04x\n", __func__, ret);
break;
case 1:
ret = pfl->ident[2] << 8 | pfl->ident[3];
ret = pfl->ident2 << 8 | pfl->ident3;
DPRINTF("%s: Device ID Code %04x\n", __func__, ret);
break;
default:
@ -277,9 +285,8 @@ static void pflash_write(pflash_t *pfl, hwaddr offset,
p = pfl->storage;
offset &= ~(pfl->sector_len - 1);
DPRINTF("%s: block erase at " TARGET_FMT_plx " bytes "
TARGET_FMT_plx "\n",
__func__, offset, pfl->sector_len);
DPRINTF("%s: block erase at " TARGET_FMT_plx " bytes %x\n",
__func__, offset, (unsigned)pfl->sector_len);
if (!pfl->ro) {
memset(p + offset, 0xff, pfl->sector_len);
@ -541,19 +548,13 @@ static const MemoryRegionOps pflash_cfi01_ops_le = {
.endianness = DEVICE_NATIVE_ENDIAN,
};
pflash_t *pflash_cfi01_register(hwaddr base,
DeviceState *qdev, const char *name,
hwaddr size,
BlockDriverState *bs, uint32_t sector_len,
int nb_blocs, int width,
uint16_t id0, uint16_t id1,
uint16_t id2, uint16_t id3, int be)
static int pflash_cfi01_init(SysBusDevice *dev)
{
pflash_t *pfl;
hwaddr total_len;
pflash_t *pfl = FROM_SYSBUS(typeof(*pfl), dev);
uint64_t total_len;
int ret;
total_len = sector_len * nb_blocs;
total_len = pfl->sector_len * pfl->nb_blocs;
/* XXX: to be fixed */
#if 0
@ -562,27 +563,22 @@ pflash_t *pflash_cfi01_register(hwaddr base,
return NULL;
#endif
pfl = g_malloc0(sizeof(pflash_t));
memory_region_init_rom_device(
&pfl->mem, be ? &pflash_cfi01_ops_be : &pflash_cfi01_ops_le, pfl,
name, size);
vmstate_register_ram(&pfl->mem, qdev);
&pfl->mem, pfl->be ? &pflash_cfi01_ops_be : &pflash_cfi01_ops_le, pfl,
pfl->name, total_len);
vmstate_register_ram(&pfl->mem, DEVICE(pfl));
pfl->storage = memory_region_get_ram_ptr(&pfl->mem);
memory_region_add_subregion(get_system_memory(), base, &pfl->mem);
sysbus_init_mmio(dev, &pfl->mem);
pfl->bs = bs;
if (pfl->bs) {
/* read the initial flash content */
ret = bdrv_read(pfl->bs, 0, pfl->storage, total_len >> 9);
if (ret < 0) {
memory_region_del_subregion(get_system_memory(), &pfl->mem);
vmstate_unregister_ram(&pfl->mem, qdev);
vmstate_unregister_ram(&pfl->mem, DEVICE(pfl));
memory_region_destroy(&pfl->mem);
g_free(pfl);
return NULL;
return 1;
}
bdrv_attach_dev_nofail(pfl->bs, pfl);
}
if (pfl->bs) {
@ -592,15 +588,9 @@ pflash_t *pflash_cfi01_register(hwaddr base,
}
pfl->timer = qemu_new_timer_ns(vm_clock, pflash_timer, pfl);
pfl->sector_len = sector_len;
pfl->width = width;
pfl->wcycle = 0;
pfl->cmd = 0;
pfl->status = 0;
pfl->ident[0] = id0;
pfl->ident[1] = id1;
pfl->ident[2] = id2;
pfl->ident[3] = id3;
/* Hardcoded CFI table */
pfl->cfi_len = 0x52;
/* Standard "QRY" string */
@ -649,7 +639,7 @@ pflash_t *pflash_cfi01_register(hwaddr base,
pfl->cfi_table[0x28] = 0x02;
pfl->cfi_table[0x29] = 0x00;
/* Max number of bytes in multi-bytes write */
if (width == 1) {
if (pfl->width == 1) {
pfl->cfi_table[0x2A] = 0x08;
} else {
pfl->cfi_table[0x2A] = 0x0B;
@ -660,10 +650,10 @@ pflash_t *pflash_cfi01_register(hwaddr base,
/* Number of erase block regions (uniform) */
pfl->cfi_table[0x2C] = 0x01;
/* Erase block region 1 */
pfl->cfi_table[0x2D] = nb_blocs - 1;
pfl->cfi_table[0x2E] = (nb_blocs - 1) >> 8;
pfl->cfi_table[0x2F] = sector_len >> 8;
pfl->cfi_table[0x30] = sector_len >> 16;
pfl->cfi_table[0x2D] = pfl->nb_blocs - 1;
pfl->cfi_table[0x2E] = (pfl->nb_blocs - 1) >> 8;
pfl->cfi_table[0x2F] = pfl->sector_len >> 8;
pfl->cfi_table[0x30] = pfl->sector_len >> 16;
/* Extended */
pfl->cfi_table[0x31] = 'P';
@ -685,6 +675,75 @@ pflash_t *pflash_cfi01_register(hwaddr base,
pfl->cfi_table[0x3f] = 0x01; /* Number of protection fields */
return 0;
}
static Property pflash_cfi01_properties[] = {
DEFINE_PROP_DRIVE("drive", struct pflash_t, bs),
DEFINE_PROP_UINT32("num-blocks", struct pflash_t, nb_blocs, 0),
DEFINE_PROP_UINT64("sector-length", struct pflash_t, sector_len, 0),
DEFINE_PROP_UINT8("width", struct pflash_t, width, 0),
DEFINE_PROP_UINT8("big-endian", struct pflash_t, be, 0),
DEFINE_PROP_UINT16("id0", struct pflash_t, ident0, 0),
DEFINE_PROP_UINT16("id1", struct pflash_t, ident1, 0),
DEFINE_PROP_UINT16("id2", struct pflash_t, ident2, 0),
DEFINE_PROP_UINT16("id3", struct pflash_t, ident3, 0),
DEFINE_PROP_STRING("name", struct pflash_t, name),
DEFINE_PROP_END_OF_LIST(),
};
static void pflash_cfi01_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
k->init = pflash_cfi01_init;
dc->props = pflash_cfi01_properties;
}
static const TypeInfo pflash_cfi01_info = {
.name = "cfi.pflash01",
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(struct pflash_t),
.class_init = pflash_cfi01_class_init,
};
static void pflash_cfi01_register_types(void)
{
type_register_static(&pflash_cfi01_info);
}
type_init(pflash_cfi01_register_types)
pflash_t *pflash_cfi01_register(hwaddr base,
DeviceState *qdev, const char *name,
hwaddr size,
BlockDriverState *bs,
uint32_t sector_len, int nb_blocs, int width,
uint16_t id0, uint16_t id1,
uint16_t id2, uint16_t id3, int be)
{
DeviceState *dev = qdev_create(NULL, "cfi.pflash01");
SysBusDevice *busdev = sysbus_from_qdev(dev);
pflash_t *pfl = (pflash_t *)object_dynamic_cast(OBJECT(dev),
"cfi.pflash01");
if (bs && qdev_prop_set_drive(dev, "drive", bs)) {
abort();
}
qdev_prop_set_uint32(dev, "num-blocks", nb_blocs);
qdev_prop_set_uint64(dev, "sector-length", sector_len);
qdev_prop_set_uint8(dev, "width", width);
qdev_prop_set_uint8(dev, "big-endian", !!be);
qdev_prop_set_uint16(dev, "id0", id0);
qdev_prop_set_uint16(dev, "id1", id1);
qdev_prop_set_uint16(dev, "id2", id2);
qdev_prop_set_uint16(dev, "id3", id3);
qdev_prop_set_string(dev, "name", name);
qdev_init_nofail(dev);
sysbus_mmio_map(busdev, 0, base);
return pfl;
}

160
hw/pflash_cfi02.c
View File

@ -41,6 +41,7 @@
#include "block.h"
#include "exec-memory.h"
#include "host-utils.h"
#include "sysbus.h"
//#define PFLASH_DEBUG
#ifdef PFLASH_DEBUG
@ -55,18 +56,26 @@ do { \
#define PFLASH_LAZY_ROMD_THRESHOLD 42
struct pflash_t {
SysBusDevice busdev;
BlockDriverState *bs;
uint32_t sector_len;
uint32_t nb_blocs;
uint32_t chip_len;
int mappings;
int width;
uint8_t mappings;
uint8_t width;
uint8_t be;
int wcycle; /* if 0, the flash is read normally */
int bypass;
int ro;
uint8_t cmd;
uint8_t status;
uint16_t ident[4];
uint16_t unlock_addr[2];
/* FIXME: implement array device properties */
uint16_t ident0;
uint16_t ident1;
uint16_t ident2;
uint16_t ident3;
uint16_t unlock_addr0;
uint16_t unlock_addr1;
uint8_t cfi_len;
uint8_t cfi_table[0x52];
QEMUTimer *timer;
@ -79,6 +88,7 @@ struct pflash_t {
MemoryRegion orig_mem;
int rom_mode;
int read_counter; /* used for lazy switch-back to rom mode */
char *name;
void *storage;
};
@ -189,16 +199,17 @@ static uint32_t pflash_read (pflash_t *pfl, hwaddr offset,
switch (boff) {
case 0x00:
case 0x01:
ret = pfl->ident[boff & 0x01];
ret = boff & 0x01 ? pfl->ident1 : pfl->ident0;
break;
case 0x02:
ret = 0x00; /* Pretend all sectors are unprotected */
break;
case 0x0E:
case 0x0F:
if (pfl->ident[2 + (boff & 0x01)] == (uint8_t)-1)
ret = boff & 0x01 ? pfl->ident3 : pfl->ident2;
if (ret == (uint8_t)-1) {
goto flash_read;
ret = pfl->ident[2 + (boff & 0x01)];
}
break;
default:
goto flash_read;
@ -282,9 +293,9 @@ static void pflash_write (pflash_t *pfl, hwaddr offset,
pfl->cmd = 0x98;
return;
}
if (boff != pfl->unlock_addr[0] || cmd != 0xAA) {
if (boff != pfl->unlock_addr0 || cmd != 0xAA) {
DPRINTF("%s: unlock0 failed " TARGET_FMT_plx " %02x %04x\n",
__func__, boff, cmd, pfl->unlock_addr[0]);
__func__, boff, cmd, pfl->unlock_addr0);
goto reset_flash;
}
DPRINTF("%s: unlock sequence started\n", __func__);
@ -292,7 +303,7 @@ static void pflash_write (pflash_t *pfl, hwaddr offset,
case 1:
/* We started an unlock sequence */
check_unlock1:
if (boff != pfl->unlock_addr[1] || cmd != 0x55) {
if (boff != pfl->unlock_addr1 || cmd != 0x55) {
DPRINTF("%s: unlock1 failed " TARGET_FMT_plx " %02x\n", __func__,
boff, cmd);
goto reset_flash;
@ -301,7 +312,7 @@ static void pflash_write (pflash_t *pfl, hwaddr offset,
break;
case 2:
/* We finished an unlock sequence */
if (!pfl->bypass && boff != pfl->unlock_addr[0]) {
if (!pfl->bypass && boff != pfl->unlock_addr0) {
DPRINTF("%s: command failed " TARGET_FMT_plx " %02x\n", __func__,
boff, cmd);
goto reset_flash;
@ -399,7 +410,7 @@ static void pflash_write (pflash_t *pfl, hwaddr offset,
case 5:
switch (cmd) {
case 0x10:
if (boff != pfl->unlock_addr[0]) {
if (boff != pfl->unlock_addr0) {
DPRINTF("%s: chip erase: invalid address " TARGET_FMT_plx "\n",
__func__, offset);
goto reset_flash;
@ -574,49 +585,38 @@ static const MemoryRegionOps pflash_cfi02_ops_le = {
.endianness = DEVICE_NATIVE_ENDIAN,
};
pflash_t *pflash_cfi02_register(hwaddr base,
DeviceState *qdev, const char *name,
hwaddr size,
BlockDriverState *bs, uint32_t sector_len,
int nb_blocs, int nb_mappings, int width,
uint16_t id0, uint16_t id1,
uint16_t id2, uint16_t id3,
uint16_t unlock_addr0, uint16_t unlock_addr1,
int be)
static int pflash_cfi02_init(SysBusDevice *dev)
{
pflash_t *pfl;
int32_t chip_len;
pflash_t *pfl = FROM_SYSBUS(typeof(*pfl), dev);
uint32_t chip_len;
int ret;
chip_len = sector_len * nb_blocs;
chip_len = pfl->sector_len * pfl->nb_blocs;
/* XXX: to be fixed */
#if 0
if (total_len != (8 * 1024 * 1024) && total_len != (16 * 1024 * 1024) &&
total_len != (32 * 1024 * 1024) && total_len != (64 * 1024 * 1024))
return NULL;
#endif
pfl = g_malloc0(sizeof(pflash_t));
memory_region_init_rom_device(
&pfl->orig_mem, be ? &pflash_cfi02_ops_be : &pflash_cfi02_ops_le, pfl,
name, size);
vmstate_register_ram(&pfl->orig_mem, qdev);
memory_region_init_rom_device(&pfl->orig_mem, pfl->be ?
&pflash_cfi02_ops_be : &pflash_cfi02_ops_le,
pfl, pfl->name, chip_len);
vmstate_register_ram(&pfl->orig_mem, DEVICE(pfl));
pfl->storage = memory_region_get_ram_ptr(&pfl->orig_mem);
pfl->chip_len = chip_len;
pfl->mappings = nb_mappings;
pfl->bs = bs;
if (pfl->bs) {
/* read the initial flash content */
ret = bdrv_read(pfl->bs, 0, pfl->storage, chip_len >> 9);
if (ret < 0) {
g_free(pfl);
return NULL;
return 1;
}
bdrv_attach_dev_nofail(pfl->bs, pfl);
}
pflash_setup_mappings(pfl);
pfl->rom_mode = 1;
memory_region_add_subregion(get_system_memory(), base, &pfl->mem);
sysbus_init_mmio(dev, &pfl->mem);
if (pfl->bs) {
pfl->ro = bdrv_is_read_only(pfl->bs);
@ -625,17 +625,9 @@ pflash_t *pflash_cfi02_register(hwaddr base,
}
pfl->timer = qemu_new_timer_ns(vm_clock, pflash_timer, pfl);
pfl->sector_len = sector_len;
pfl->width = width;
pfl->wcycle = 0;
pfl->cmd = 0;
pfl->status = 0;
pfl->ident[0] = id0;
pfl->ident[1] = id1;
pfl->ident[2] = id2;
pfl->ident[3] = id3;
pfl->unlock_addr[0] = unlock_addr0;
pfl->unlock_addr[1] = unlock_addr1;
/* Hardcoded CFI table (mostly from SG29 Spansion flash) */
pfl->cfi_len = 0x52;
/* Standard "QRY" string */
@ -691,10 +683,10 @@ pflash_t *pflash_cfi02_register(hwaddr base,
/* Number of erase block regions (uniform) */
pfl->cfi_table[0x2C] = 0x01;
/* Erase block region 1 */
pfl->cfi_table[0x2D] = nb_blocs - 1;
pfl->cfi_table[0x2E] = (nb_blocs - 1) >> 8;
pfl->cfi_table[0x2F] = sector_len >> 8;
pfl->cfi_table[0x30] = sector_len >> 16;
pfl->cfi_table[0x2D] = pfl->nb_blocs - 1;
pfl->cfi_table[0x2E] = (pfl->nb_blocs - 1) >> 8;
pfl->cfi_table[0x2F] = pfl->sector_len >> 8;
pfl->cfi_table[0x30] = pfl->sector_len >> 16;
/* Extended */
pfl->cfi_table[0x31] = 'P';
@ -714,5 +706,81 @@ pflash_t *pflash_cfi02_register(hwaddr base,
pfl->cfi_table[0x3b] = 0x00;
pfl->cfi_table[0x3c] = 0x00;
return 0;
}
static Property pflash_cfi02_properties[] = {
DEFINE_PROP_DRIVE("drive", struct pflash_t, bs),
DEFINE_PROP_UINT32("num-blocks", struct pflash_t, nb_blocs, 0),
DEFINE_PROP_UINT32("sector-length", struct pflash_t, sector_len, 0),
DEFINE_PROP_UINT8("width", struct pflash_t, width, 0),
DEFINE_PROP_UINT8("mappings", struct pflash_t, mappings, 0),
DEFINE_PROP_UINT8("big-endian", struct pflash_t, be, 0),
DEFINE_PROP_UINT16("id0", struct pflash_t, ident0, 0),
DEFINE_PROP_UINT16("id1", struct pflash_t, ident1, 0),
DEFINE_PROP_UINT16("id2", struct pflash_t, ident2, 0),
DEFINE_PROP_UINT16("id3", struct pflash_t, ident3, 0),
DEFINE_PROP_UINT16("unlock-addr0", struct pflash_t, unlock_addr0, 0),
DEFINE_PROP_UINT16("unlock-addr1", struct pflash_t, unlock_addr1, 0),
DEFINE_PROP_STRING("name", struct pflash_t, name),
DEFINE_PROP_END_OF_LIST(),
};
static void pflash_cfi02_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
k->init = pflash_cfi02_init;
dc->props = pflash_cfi02_properties;
}
static const TypeInfo pflash_cfi02_info = {
.name = "cfi.pflash02",
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(struct pflash_t),
.class_init = pflash_cfi02_class_init,
};
static void pflash_cfi02_register_types(void)
{
type_register_static(&pflash_cfi02_info);
}
type_init(pflash_cfi02_register_types)
pflash_t *pflash_cfi02_register(hwaddr base,
DeviceState *qdev, const char *name,
hwaddr size,
BlockDriverState *bs, uint32_t sector_len,
int nb_blocs, int nb_mappings, int width,
uint16_t id0, uint16_t id1,
uint16_t id2, uint16_t id3,
uint16_t unlock_addr0, uint16_t unlock_addr1,
int be)
{
DeviceState *dev = qdev_create(NULL, "cfi.pflash02");
SysBusDevice *busdev = sysbus_from_qdev(dev);
pflash_t *pfl = (pflash_t *)object_dynamic_cast(OBJECT(dev),
"cfi.pflash02");
if (bs && qdev_prop_set_drive(dev, "drive", bs)) {
abort();
}
qdev_prop_set_uint32(dev, "num-blocks", nb_blocs);
qdev_prop_set_uint32(dev, "sector-length", sector_len);
qdev_prop_set_uint8(dev, "width", width);
qdev_prop_set_uint8(dev, "mappings", nb_mappings);
qdev_prop_set_uint8(dev, "big-endian", !!be);
qdev_prop_set_uint16(dev, "id0", id0);
qdev_prop_set_uint16(dev, "id1", id1);
qdev_prop_set_uint16(dev, "id2", id2);
qdev_prop_set_uint16(dev, "id3", id3);
qdev_prop_set_uint16(dev, "unlock-addr0", unlock_addr0);
qdev_prop_set_uint16(dev, "unlock-addr1", unlock_addr1);
qdev_prop_set_string(dev, "name", name);
qdev_init_nofail(dev);
sysbus_mmio_map(busdev, 0, base);
return pfl;
}