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aspeed/sdmc: Introduce an object class per SoC 

Use class handlers and class constants to differentiate the
characteristics of the memory controller and remove the 'silicon_rev'
property.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Message-id: 20190925143248.10000-9-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Cédric Le Goater 2019-09-25 16:32:33 +02:00 committed by Peter Maydell
parent fadefada4d
commit 8e00d1a97d
3 changed files with 122 additions and 70 deletions
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5
hw/arm/aspeed_soc.c
View File

@ -205,10 +205,9 @@ static void aspeed_soc_init(Object *obj)
sizeof(s->spi[i]), typename);
}
snprintf(typename, sizeof(typename), "aspeed.sdmc-%s", socname);
sysbus_init_child_obj(obj, "sdmc", OBJECT(&s->sdmc), sizeof(s->sdmc),
TYPE_ASPEED_SDMC);
qdev_prop_set_uint32(DEVICE(&s->sdmc), "silicon-rev",
sc->info->silicon_rev);
typename);
object_property_add_alias(obj, "ram-size", OBJECT(&s->sdmc),
"ram-size", &error_abort);
object_property_add_alias(obj, "max-ram-size", OBJECT(&s->sdmc),

168
hw/misc/aspeed_sdmc.c
View File

@ -110,6 +110,7 @@ static void aspeed_sdmc_write(void *opaque, hwaddr addr, uint64_t data,
unsigned int size)
{
AspeedSDMCState *s = ASPEED_SDMC(opaque);
AspeedSDMCClass *asc = ASPEED_SDMC_GET_CLASS(s);
addr >>= 2;
@ -130,41 +131,7 @@ static void aspeed_sdmc_write(void *opaque, hwaddr addr, uint64_t data,
return;
}
if (addr == R_CONF) {
/* Make sure readonly bits are kept */
switch (s->silicon_rev) {
case AST2400_A0_SILICON_REV:
case AST2400_A1_SILICON_REV:
data &= ~ASPEED_SDMC_READONLY_MASK;
data |= s->fixed_conf;
break;
case AST2500_A0_SILICON_REV:
case AST2500_A1_SILICON_REV:
data &= ~ASPEED_SDMC_AST2500_READONLY_MASK;
data |= s->fixed_conf;
break;
default:
g_assert_not_reached();
}
}
if (s->silicon_rev == AST2500_A0_SILICON_REV ||
s->silicon_rev == AST2500_A1_SILICON_REV) {
switch (addr) {
case R_STATUS1:
/* Will never return 'busy' */
data &= ~PHY_BUSY_STATE;
break;
case R_ECC_TEST_CTRL:
/* Always done, always happy */
data |= ECC_TEST_FINISHED;
data &= ~ECC_TEST_FAIL;
break;
default:
break;
}
}
s->regs[addr] = data;
asc->write(s, addr, data);
}
static const MemoryRegionOps aspeed_sdmc_ops = {
@ -222,44 +189,21 @@ static int ast2500_rambits(AspeedSDMCState *s)
static void aspeed_sdmc_reset(DeviceState *dev)
{
AspeedSDMCState *s = ASPEED_SDMC(dev);
AspeedSDMCClass *asc = ASPEED_SDMC_GET_CLASS(s);
memset(s->regs, 0, sizeof(s->regs));
/* Set ram size bit and defaults values */
s->regs[R_CONF] = s->fixed_conf;
s->regs[R_CONF] = asc->compute_conf(s, 0);
}
static void aspeed_sdmc_realize(DeviceState *dev, Error **errp)
{
SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
AspeedSDMCState *s = ASPEED_SDMC(dev);
AspeedSDMCClass *asc = ASPEED_SDMC_GET_CLASS(s);
if (!is_supported_silicon_rev(s->silicon_rev)) {
error_setg(errp, "Unknown silicon revision: 0x%" PRIx32,
s->silicon_rev);
return;
}
switch (s->silicon_rev) {
case AST2400_A0_SILICON_REV:
case AST2400_A1_SILICON_REV:
s->ram_bits = ast2400_rambits(s);
s->max_ram_size = 512 << 20;
s->fixed_conf = ASPEED_SDMC_VGA_COMPAT |
ASPEED_SDMC_DRAM_SIZE(s->ram_bits);
break;
case AST2500_A0_SILICON_REV:
case AST2500_A1_SILICON_REV:
s->ram_bits = ast2500_rambits(s);
s->max_ram_size = 1024 << 20;
s->fixed_conf = ASPEED_SDMC_HW_VERSION(1) |
ASPEED_SDMC_VGA_APERTURE(ASPEED_SDMC_VGA_64MB) |
ASPEED_SDMC_CACHE_INITIAL_DONE |
ASPEED_SDMC_DRAM_SIZE(s->ram_bits);
break;
default:
g_assert_not_reached();
}
s->max_ram_size = asc->max_ram_size;
memory_region_init_io(&s->iomem, OBJECT(s), &aspeed_sdmc_ops, s,
TYPE_ASPEED_SDMC, 0x1000);
@ -277,7 +221,6 @@ static const VMStateDescription vmstate_aspeed_sdmc = {
};
static Property aspeed_sdmc_properties[] = {
DEFINE_PROP_UINT32("silicon-rev", AspeedSDMCState, silicon_rev, 0),
DEFINE_PROP_UINT64("ram-size", AspeedSDMCState, ram_size, 0),
DEFINE_PROP_UINT64("max-ram-size", AspeedSDMCState, max_ram_size, 0),
DEFINE_PROP_END_OF_LIST(),
@ -298,11 +241,110 @@ static const TypeInfo aspeed_sdmc_info = {
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(AspeedSDMCState),
.class_init = aspeed_sdmc_class_init,
.class_size = sizeof(AspeedSDMCClass),
.abstract = true,
};
static uint32_t aspeed_2400_sdmc_compute_conf(AspeedSDMCState *s, uint32_t data)
{
uint32_t fixed_conf = ASPEED_SDMC_VGA_COMPAT |
ASPEED_SDMC_DRAM_SIZE(ast2400_rambits(s));
/* Make sure readonly bits are kept */
data &= ~ASPEED_SDMC_READONLY_MASK;
return data | fixed_conf;
}
static void aspeed_2400_sdmc_write(AspeedSDMCState *s, uint32_t reg,
uint32_t data)
{
switch (reg) {
case R_CONF:
data = aspeed_2400_sdmc_compute_conf(s, data);
break;
default:
break;
}
s->regs[reg] = data;
}
static void aspeed_2400_sdmc_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
AspeedSDMCClass *asc = ASPEED_SDMC_CLASS(klass);
dc->desc = "ASPEED 2400 SDRAM Memory Controller";
asc->max_ram_size = 512 << 20;
asc->compute_conf = aspeed_2400_sdmc_compute_conf;
asc->write = aspeed_2400_sdmc_write;
}
static const TypeInfo aspeed_2400_sdmc_info = {
.name = TYPE_ASPEED_2400_SDMC,
.parent = TYPE_ASPEED_SDMC,
.class_init = aspeed_2400_sdmc_class_init,
};
static uint32_t aspeed_2500_sdmc_compute_conf(AspeedSDMCState *s, uint32_t data)
{
uint32_t fixed_conf = ASPEED_SDMC_HW_VERSION(1) |
ASPEED_SDMC_VGA_APERTURE(ASPEED_SDMC_VGA_64MB) |
ASPEED_SDMC_CACHE_INITIAL_DONE |
ASPEED_SDMC_DRAM_SIZE(ast2500_rambits(s));
/* Make sure readonly bits are kept */
data &= ~ASPEED_SDMC_AST2500_READONLY_MASK;
return data | fixed_conf;
}
static void aspeed_2500_sdmc_write(AspeedSDMCState *s, uint32_t reg,
uint32_t data)
{
switch (reg) {
case R_CONF:
data = aspeed_2500_sdmc_compute_conf(s, data);
break;
case R_STATUS1:
/* Will never return 'busy' */
data &= ~PHY_BUSY_STATE;
break;
case R_ECC_TEST_CTRL:
/* Always done, always happy */
data |= ECC_TEST_FINISHED;
data &= ~ECC_TEST_FAIL;
break;
default:
break;
}
s->regs[reg] = data;
}
static void aspeed_2500_sdmc_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
AspeedSDMCClass *asc = ASPEED_SDMC_CLASS(klass);
dc->desc = "ASPEED 2500 SDRAM Memory Controller";
asc->max_ram_size = 1024 << 20;
asc->compute_conf = aspeed_2500_sdmc_compute_conf;
asc->write = aspeed_2500_sdmc_write;
}
static const TypeInfo aspeed_2500_sdmc_info = {
.name = TYPE_ASPEED_2500_SDMC,
.parent = TYPE_ASPEED_SDMC,
.class_init = aspeed_2500_sdmc_class_init,
};
static void aspeed_sdmc_register_types(void)
{
type_register_static(&aspeed_sdmc_info);
type_register_static(&aspeed_2400_sdmc_info);
type_register_static(&aspeed_2500_sdmc_info);
}
type_init(aspeed_sdmc_register_types);

19
include/hw/misc/aspeed_sdmc.h
View File

@ -13,6 +13,8 @@
#define TYPE_ASPEED_SDMC "aspeed.sdmc"
#define ASPEED_SDMC(obj) OBJECT_CHECK(AspeedSDMCState, (obj), TYPE_ASPEED_SDMC)
#define TYPE_ASPEED_2400_SDMC TYPE_ASPEED_SDMC "-ast2400"
#define TYPE_ASPEED_2500_SDMC TYPE_ASPEED_SDMC "-ast2500"
#define ASPEED_SDMC_NR_REGS (0x174 >> 2)
@ -24,12 +26,21 @@ typedef struct AspeedSDMCState {
MemoryRegion iomem;
uint32_t regs[ASPEED_SDMC_NR_REGS];
uint32_t silicon_rev;
uint32_t ram_bits;
uint64_t ram_size;
uint64_t max_ram_size;
uint32_t fixed_conf;
} AspeedSDMCState;
#define ASPEED_SDMC_CLASS(klass) \
OBJECT_CLASS_CHECK(AspeedSDMCClass, (klass), TYPE_ASPEED_SDMC)
#define ASPEED_SDMC_GET_CLASS(obj) \
OBJECT_GET_CLASS(AspeedSDMCClass, (obj), TYPE_ASPEED_SDMC)
typedef struct AspeedSDMCClass {
SysBusDeviceClass parent_class;
uint64_t max_ram_size;
uint32_t (*compute_conf)(AspeedSDMCState *s, uint32_t data);
void (*write)(AspeedSDMCState *s, uint32_t reg, uint32_t data);
} AspeedSDMCClass;
#endif /* ASPEED_SDMC_H */