aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--hw/arm/allwinner-h3.c19
-rw-r--r--hw/arm/orangepi.c6
-rw-r--r--hw/misc/Makefile.objs1
-rw-r--r--hw/misc/allwinner-h3-dramc.c358
-rw-r--r--hw/misc/trace-events10
-rw-r--r--include/hw/arm/allwinner-h3.h5
-rw-r--r--include/hw/misc/allwinner-h3-dramc.h106
7 files changed, 502 insertions, 3 deletions
diff --git a/hw/arm/allwinner-h3.c b/hw/arm/allwinner-h3.c
index a9767c70c0..c0a2ecfee8 100644
--- a/hw/arm/allwinner-h3.c
+++ b/hw/arm/allwinner-h3.c
@@ -56,6 +56,9 @@ const hwaddr allwinner_h3_memmap[] = {
[AW_H3_UART2] = 0x01c28800,
[AW_H3_UART3] = 0x01c28c00,
[AW_H3_EMAC] = 0x01c30000,
+ [AW_H3_DRAMCOM] = 0x01c62000,
+ [AW_H3_DRAMCTL] = 0x01c63000,
+ [AW_H3_DRAMPHY] = 0x01c65000,
[AW_H3_GIC_DIST] = 0x01c81000,
[AW_H3_GIC_CPU] = 0x01c82000,
[AW_H3_GIC_HYP] = 0x01c84000,
@@ -110,9 +113,6 @@ struct AwH3Unimplemented {
{ "scr", 0x01c2c400, 1 * KiB },
{ "gpu", 0x01c40000, 64 * KiB },
{ "hstmr", 0x01c60000, 4 * KiB },
- { "dramcom", 0x01c62000, 4 * KiB },
- { "dramctl0", 0x01c63000, 4 * KiB },
- { "dramphy0", 0x01c65000, 4 * KiB },
{ "spi0", 0x01c68000, 4 * KiB },
{ "spi1", 0x01c69000, 4 * KiB },
{ "csi", 0x01cb0000, 320 * KiB },
@@ -228,6 +228,13 @@ static void allwinner_h3_init(Object *obj)
sysbus_init_child_obj(obj, "emac", &s->emac, sizeof(s->emac),
TYPE_AW_SUN8I_EMAC);
+
+ sysbus_init_child_obj(obj, "dramc", &s->dramc, sizeof(s->dramc),
+ TYPE_AW_H3_DRAMC);
+ object_property_add_alias(obj, "ram-addr", OBJECT(&s->dramc),
+ "ram-addr", &error_abort);
+ object_property_add_alias(obj, "ram-size", OBJECT(&s->dramc),
+ "ram-size", &error_abort);
}
static void allwinner_h3_realize(DeviceState *dev, Error **errp)
@@ -412,6 +419,12 @@ static void allwinner_h3_realize(DeviceState *dev, Error **errp)
qdev_get_gpio_in(DEVICE(&s->gic), AW_H3_GIC_SPI_UART3),
115200, serial_hd(3), DEVICE_NATIVE_ENDIAN);
+ /* DRAMC */
+ qdev_init_nofail(DEVICE(&s->dramc));
+ sysbus_mmio_map(SYS_BUS_DEVICE(&s->dramc), 0, s->memmap[AW_H3_DRAMCOM]);
+ sysbus_mmio_map(SYS_BUS_DEVICE(&s->dramc), 1, s->memmap[AW_H3_DRAMCTL]);
+ sysbus_mmio_map(SYS_BUS_DEVICE(&s->dramc), 2, s->memmap[AW_H3_DRAMPHY]);
+
/* Unimplemented devices */
for (i = 0; i < ARRAY_SIZE(unimplemented); i++) {
create_unimplemented_device(unimplemented[i].device_name,
diff --git a/hw/arm/orangepi.c b/hw/arm/orangepi.c
index b8ebcb08b7..181f5badab 100644
--- a/hw/arm/orangepi.c
+++ b/hw/arm/orangepi.c
@@ -80,6 +80,12 @@ static void orangepi_init(MachineState *machine)
/* Setup EMAC properties */
object_property_set_int(OBJECT(&h3->emac), 1, "phy-addr", &error_abort);
+ /* DRAMC */
+ object_property_set_uint(OBJECT(h3), h3->memmap[AW_H3_SDRAM],
+ "ram-addr", &error_abort);
+ object_property_set_int(OBJECT(h3), machine->ram_size / MiB, "ram-size",
+ &error_abort);
+
/* Mark H3 object realized */
object_property_set_bool(OBJECT(h3), true, "realized", &error_abort);
diff --git a/hw/misc/Makefile.objs b/hw/misc/Makefile.objs
index daa734036e..68aae2eabb 100644
--- a/hw/misc/Makefile.objs
+++ b/hw/misc/Makefile.objs
@@ -30,6 +30,7 @@ common-obj-$(CONFIG_IVSHMEM_DEVICE) += ivshmem.o
common-obj-$(CONFIG_ALLWINNER_H3) += allwinner-h3-ccu.o
obj-$(CONFIG_ALLWINNER_H3) += allwinner-cpucfg.o
+common-obj-$(CONFIG_ALLWINNER_H3) += allwinner-h3-dramc.o
common-obj-$(CONFIG_ALLWINNER_H3) += allwinner-h3-sysctrl.o
common-obj-$(CONFIG_ALLWINNER_H3) += allwinner-sid.o
common-obj-$(CONFIG_REALVIEW) += arm_sysctl.o
diff --git a/hw/misc/allwinner-h3-dramc.c b/hw/misc/allwinner-h3-dramc.c
new file mode 100644
index 0000000000..2b5260260e
--- /dev/null
+++ b/hw/misc/allwinner-h3-dramc.c
@@ -0,0 +1,358 @@
+/*
+ * Allwinner H3 SDRAM Controller emulation
+ *
+ * Copyright (C) 2019 Niek Linnenbank <nieklinnenbank@gmail.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "qemu/osdep.h"
+#include "qemu/units.h"
+#include "qemu/error-report.h"
+#include "hw/sysbus.h"
+#include "migration/vmstate.h"
+#include "qemu/log.h"
+#include "qemu/module.h"
+#include "exec/address-spaces.h"
+#include "hw/qdev-properties.h"
+#include "qapi/error.h"
+#include "hw/misc/allwinner-h3-dramc.h"
+#include "trace.h"
+
+#define REG_INDEX(offset) (offset / sizeof(uint32_t))
+
+/* DRAMCOM register offsets */
+enum {
+ REG_DRAMCOM_CR = 0x0000, /* Control Register */
+};
+
+/* DRAMCTL register offsets */
+enum {
+ REG_DRAMCTL_PIR = 0x0000, /* PHY Initialization Register */
+ REG_DRAMCTL_PGSR = 0x0010, /* PHY General Status Register */
+ REG_DRAMCTL_STATR = 0x0018, /* Status Register */
+};
+
+/* DRAMCTL register flags */
+enum {
+ REG_DRAMCTL_PGSR_INITDONE = (1 << 0),
+};
+
+enum {
+ REG_DRAMCTL_STATR_ACTIVE = (1 << 0),
+};
+
+static void allwinner_h3_dramc_map_rows(AwH3DramCtlState *s, uint8_t row_bits,
+ uint8_t bank_bits, uint16_t page_size)
+{
+ /*
+ * This function simulates row addressing behavior when bootloader
+ * software attempts to detect the amount of available SDRAM. In U-Boot
+ * the controller is configured with the widest row addressing available.
+ * Then a pattern is written to RAM at an offset on the row boundary size.
+ * If the value read back equals the value read back from the
+ * start of RAM, the bootloader knows the amount of row bits.
+ *
+ * This function inserts a mirrored memory region when the configured row
+ * bits are not matching the actual emulated memory, to simulate the
+ * same behavior on hardware as expected by the bootloader.
+ */
+ uint8_t row_bits_actual = 0;
+
+ /* Calculate the actual row bits using the ram_size property */
+ for (uint8_t i = 8; i < 12; i++) {
+ if (1 << i == s->ram_size) {
+ row_bits_actual = i + 3;
+ break;
+ }
+ }
+
+ if (s->ram_size == (1 << (row_bits - 3))) {
+ /* When row bits is the expected value, remove the mirror */
+ memory_region_set_enabled(&s->row_mirror_alias, false);
+ trace_allwinner_h3_dramc_rowmirror_disable();
+
+ } else if (row_bits_actual) {
+ /* Row bits not matching ram_size, install the rows mirror */
+ hwaddr row_mirror = s->ram_addr + ((1 << (row_bits_actual +
+ bank_bits)) * page_size);
+
+ memory_region_set_enabled(&s->row_mirror_alias, true);
+ memory_region_set_address(&s->row_mirror_alias, row_mirror);
+
+ trace_allwinner_h3_dramc_rowmirror_enable(row_mirror);
+ }
+}
+
+static uint64_t allwinner_h3_dramcom_read(void *opaque, hwaddr offset,
+ unsigned size)
+{
+ const AwH3DramCtlState *s = AW_H3_DRAMC(opaque);
+ const uint32_t idx = REG_INDEX(offset);
+
+ if (idx >= AW_H3_DRAMCOM_REGS_NUM) {
+ qemu_log_mask(LOG_GUEST_ERROR, "%s: out-of-bounds offset 0x%04x\n",
+ __func__, (uint32_t)offset);
+ return 0;
+ }
+
+ trace_allwinner_h3_dramcom_read(offset, s->dramcom[idx], size);
+
+ return s->dramcom[idx];
+}
+
+static void allwinner_h3_dramcom_write(void *opaque, hwaddr offset,
+ uint64_t val, unsigned size)
+{
+ AwH3DramCtlState *s = AW_H3_DRAMC(opaque);
+ const uint32_t idx = REG_INDEX(offset);
+
+ trace_allwinner_h3_dramcom_write(offset, val, size);
+
+ if (idx >= AW_H3_DRAMCOM_REGS_NUM) {
+ qemu_log_mask(LOG_GUEST_ERROR, "%s: out-of-bounds offset 0x%04x\n",
+ __func__, (uint32_t)offset);
+ return;
+ }
+
+ switch (offset) {
+ case REG_DRAMCOM_CR: /* Control Register */
+ allwinner_h3_dramc_map_rows(s, ((val >> 4) & 0xf) + 1,
+ ((val >> 2) & 0x1) + 2,
+ 1 << (((val >> 8) & 0xf) + 3));
+ break;
+ default:
+ break;
+ };
+
+ s->dramcom[idx] = (uint32_t) val;
+}
+
+static uint64_t allwinner_h3_dramctl_read(void *opaque, hwaddr offset,
+ unsigned size)
+{
+ const AwH3DramCtlState *s = AW_H3_DRAMC(opaque);
+ const uint32_t idx = REG_INDEX(offset);
+
+ if (idx >= AW_H3_DRAMCTL_REGS_NUM) {
+ qemu_log_mask(LOG_GUEST_ERROR, "%s: out-of-bounds offset 0x%04x\n",
+ __func__, (uint32_t)offset);
+ return 0;
+ }
+
+ trace_allwinner_h3_dramctl_read(offset, s->dramctl[idx], size);
+
+ return s->dramctl[idx];
+}
+
+static void allwinner_h3_dramctl_write(void *opaque, hwaddr offset,
+ uint64_t val, unsigned size)
+{
+ AwH3DramCtlState *s = AW_H3_DRAMC(opaque);
+ const uint32_t idx = REG_INDEX(offset);
+
+ trace_allwinner_h3_dramctl_write(offset, val, size);
+
+ if (idx >= AW_H3_DRAMCTL_REGS_NUM) {
+ qemu_log_mask(LOG_GUEST_ERROR, "%s: out-of-bounds offset 0x%04x\n",
+ __func__, (uint32_t)offset);
+ return;
+ }
+
+ switch (offset) {
+ case REG_DRAMCTL_PIR: /* PHY Initialization Register */
+ s->dramctl[REG_INDEX(REG_DRAMCTL_PGSR)] |= REG_DRAMCTL_PGSR_INITDONE;
+ s->dramctl[REG_INDEX(REG_DRAMCTL_STATR)] |= REG_DRAMCTL_STATR_ACTIVE;
+ break;
+ default:
+ break;
+ }
+
+ s->dramctl[idx] = (uint32_t) val;
+}
+
+static uint64_t allwinner_h3_dramphy_read(void *opaque, hwaddr offset,
+ unsigned size)
+{
+ const AwH3DramCtlState *s = AW_H3_DRAMC(opaque);
+ const uint32_t idx = REG_INDEX(offset);
+
+ if (idx >= AW_H3_DRAMPHY_REGS_NUM) {
+ qemu_log_mask(LOG_GUEST_ERROR, "%s: out-of-bounds offset 0x%04x\n",
+ __func__, (uint32_t)offset);
+ return 0;
+ }
+
+ trace_allwinner_h3_dramphy_read(offset, s->dramphy[idx], size);
+
+ return s->dramphy[idx];
+}
+
+static void allwinner_h3_dramphy_write(void *opaque, hwaddr offset,
+ uint64_t val, unsigned size)
+{
+ AwH3DramCtlState *s = AW_H3_DRAMC(opaque);
+ const uint32_t idx = REG_INDEX(offset);
+
+ trace_allwinner_h3_dramphy_write(offset, val, size);
+
+ if (idx >= AW_H3_DRAMPHY_REGS_NUM) {
+ qemu_log_mask(LOG_GUEST_ERROR, "%s: out-of-bounds offset 0x%04x\n",
+ __func__, (uint32_t)offset);
+ return;
+ }
+
+ s->dramphy[idx] = (uint32_t) val;
+}
+
+static const MemoryRegionOps allwinner_h3_dramcom_ops = {
+ .read = allwinner_h3_dramcom_read,
+ .write = allwinner_h3_dramcom_write,
+ .endianness = DEVICE_NATIVE_ENDIAN,
+ .valid = {
+ .min_access_size = 4,
+ .max_access_size = 4,
+ },
+ .impl.min_access_size = 4,
+};
+
+static const MemoryRegionOps allwinner_h3_dramctl_ops = {
+ .read = allwinner_h3_dramctl_read,
+ .write = allwinner_h3_dramctl_write,
+ .endianness = DEVICE_NATIVE_ENDIAN,
+ .valid = {
+ .min_access_size = 4,
+ .max_access_size = 4,
+ },
+ .impl.min_access_size = 4,
+};
+
+static const MemoryRegionOps allwinner_h3_dramphy_ops = {
+ .read = allwinner_h3_dramphy_read,
+ .write = allwinner_h3_dramphy_write,
+ .endianness = DEVICE_NATIVE_ENDIAN,
+ .valid = {
+ .min_access_size = 4,
+ .max_access_size = 4,
+ },
+ .impl.min_access_size = 4,
+};
+
+static void allwinner_h3_dramc_reset(DeviceState *dev)
+{
+ AwH3DramCtlState *s = AW_H3_DRAMC(dev);
+
+ /* Set default values for registers */
+ memset(&s->dramcom, 0, sizeof(s->dramcom));
+ memset(&s->dramctl, 0, sizeof(s->dramctl));
+ memset(&s->dramphy, 0, sizeof(s->dramphy));
+}
+
+static void allwinner_h3_dramc_realize(DeviceState *dev, Error **errp)
+{
+ AwH3DramCtlState *s = AW_H3_DRAMC(dev);
+
+ /* Only power of 2 RAM sizes from 256MiB up to 2048MiB are supported */
+ for (uint8_t i = 8; i < 13; i++) {
+ if (1 << i == s->ram_size) {
+ break;
+ } else if (i == 12) {
+ error_report("%s: ram-size %u MiB is not supported",
+ __func__, s->ram_size);
+ exit(1);
+ }
+ }
+
+ /* Setup row mirror mappings */
+ memory_region_init_ram(&s->row_mirror, OBJECT(s),
+ "allwinner-h3-dramc.row-mirror",
+ 4 * KiB, &error_abort);
+ memory_region_add_subregion_overlap(get_system_memory(), s->ram_addr,
+ &s->row_mirror, 10);
+
+ memory_region_init_alias(&s->row_mirror_alias, OBJECT(s),
+ "allwinner-h3-dramc.row-mirror-alias",
+ &s->row_mirror, 0, 4 * KiB);
+ memory_region_add_subregion_overlap(get_system_memory(),
+ s->ram_addr + 1 * MiB,
+ &s->row_mirror_alias, 10);
+ memory_region_set_enabled(&s->row_mirror_alias, false);
+}
+
+static void allwinner_h3_dramc_init(Object *obj)
+{
+ SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
+ AwH3DramCtlState *s = AW_H3_DRAMC(obj);
+
+ /* DRAMCOM registers */
+ memory_region_init_io(&s->dramcom_iomem, OBJECT(s),
+ &allwinner_h3_dramcom_ops, s,
+ TYPE_AW_H3_DRAMC, 4 * KiB);
+ sysbus_init_mmio(sbd, &s->dramcom_iomem);
+
+ /* DRAMCTL registers */
+ memory_region_init_io(&s->dramctl_iomem, OBJECT(s),
+ &allwinner_h3_dramctl_ops, s,
+ TYPE_AW_H3_DRAMC, 4 * KiB);
+ sysbus_init_mmio(sbd, &s->dramctl_iomem);
+
+ /* DRAMPHY registers */
+ memory_region_init_io(&s->dramphy_iomem, OBJECT(s),
+ &allwinner_h3_dramphy_ops, s,
+ TYPE_AW_H3_DRAMC, 4 * KiB);
+ sysbus_init_mmio(sbd, &s->dramphy_iomem);
+}
+
+static Property allwinner_h3_dramc_properties[] = {
+ DEFINE_PROP_UINT64("ram-addr", AwH3DramCtlState, ram_addr, 0x0),
+ DEFINE_PROP_UINT32("ram-size", AwH3DramCtlState, ram_size, 256 * MiB),
+ DEFINE_PROP_END_OF_LIST()
+};
+
+static const VMStateDescription allwinner_h3_dramc_vmstate = {
+ .name = "allwinner-h3-dramc",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT32_ARRAY(dramcom, AwH3DramCtlState, AW_H3_DRAMCOM_REGS_NUM),
+ VMSTATE_UINT32_ARRAY(dramctl, AwH3DramCtlState, AW_H3_DRAMCTL_REGS_NUM),
+ VMSTATE_UINT32_ARRAY(dramphy, AwH3DramCtlState, AW_H3_DRAMPHY_REGS_NUM),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static void allwinner_h3_dramc_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ dc->reset = allwinner_h3_dramc_reset;
+ dc->vmsd = &allwinner_h3_dramc_vmstate;
+ dc->realize = allwinner_h3_dramc_realize;
+ device_class_set_props(dc, allwinner_h3_dramc_properties);
+}
+
+static const TypeInfo allwinner_h3_dramc_info = {
+ .name = TYPE_AW_H3_DRAMC,
+ .parent = TYPE_SYS_BUS_DEVICE,
+ .instance_init = allwinner_h3_dramc_init,
+ .instance_size = sizeof(AwH3DramCtlState),
+ .class_init = allwinner_h3_dramc_class_init,
+};
+
+static void allwinner_h3_dramc_register(void)
+{
+ type_register_static(&allwinner_h3_dramc_info);
+}
+
+type_init(allwinner_h3_dramc_register)
diff --git a/hw/misc/trace-events b/hw/misc/trace-events
index 4f38328d9c..a5862b2bed 100644
--- a/hw/misc/trace-events
+++ b/hw/misc/trace-events
@@ -5,6 +5,16 @@ allwinner_cpucfg_cpu_reset(uint8_t cpu_id, uint32_t reset_addr) "id %u, reset_ad
allwinner_cpucfg_read(uint64_t offset, uint64_t data, unsigned size) "offset 0x%" PRIx64 " data 0x%" PRIx64 " size %" PRIu32
allwinner_cpucfg_write(uint64_t offset, uint64_t data, unsigned size) "offset 0x%" PRIx64 " data 0x%" PRIx64 " size %" PRIu32
+# allwinner-h3-dramc.c
+allwinner_h3_dramc_rowmirror_disable(void) "Disable row mirror"
+allwinner_h3_dramc_rowmirror_enable(uint64_t addr) "Enable row mirror: addr 0x%" PRIx64
+allwinner_h3_dramcom_read(uint64_t offset, uint64_t data, unsigned size) "Read: offset 0x%" PRIx64 " data 0x%" PRIx64 " size %" PRIu32
+allwinner_h3_dramcom_write(uint64_t offset, uint64_t data, unsigned size) "Write: offset 0x%" PRIx64 " data 0x%" PRIx64 " size %" PRIu32
+allwinner_h3_dramctl_read(uint64_t offset, uint64_t data, unsigned size) "Read: offset 0x%" PRIx64 " data 0x%" PRIx64 " size %" PRIu32
+allwinner_h3_dramctl_write(uint64_t offset, uint64_t data, unsigned size) "Write: offset 0x%" PRIx64 " data 0x%" PRIx64 " size %" PRIu32
+allwinner_h3_dramphy_read(uint64_t offset, uint64_t data, unsigned size) "Read: offset 0x%" PRIx64 " data 0x%" PRIx64 " size %" PRIu32
+allwinner_h3_dramphy_write(uint64_t offset, uint64_t data, unsigned size) "write: offset 0x%" PRIx64 " data 0x%" PRIx64 " size %" PRIu32
+
# allwinner-sid.c
allwinner_sid_read(uint64_t offset, uint64_t data, unsigned size) "offset 0x%" PRIx64 " data 0x%" PRIx64 " size %" PRIu32
allwinner_sid_write(uint64_t offset, uint64_t data, unsigned size) "offset 0x%" PRIx64 " data 0x%" PRIx64 " size %" PRIu32
diff --git a/include/hw/arm/allwinner-h3.h b/include/hw/arm/allwinner-h3.h
index d338003724..065d020c73 100644
--- a/include/hw/arm/allwinner-h3.h
+++ b/include/hw/arm/allwinner-h3.h
@@ -41,6 +41,7 @@
#include "hw/intc/arm_gic.h"
#include "hw/misc/allwinner-h3-ccu.h"
#include "hw/misc/allwinner-cpucfg.h"
+#include "hw/misc/allwinner-h3-dramc.h"
#include "hw/misc/allwinner-h3-sysctrl.h"
#include "hw/misc/allwinner-sid.h"
#include "hw/sd/allwinner-sdhost.h"
@@ -80,6 +81,9 @@ enum {
AW_H3_UART2,
AW_H3_UART3,
AW_H3_EMAC,
+ AW_H3_DRAMCOM,
+ AW_H3_DRAMCTL,
+ AW_H3_DRAMPHY,
AW_H3_GIC_DIST,
AW_H3_GIC_CPU,
AW_H3_GIC_HYP,
@@ -120,6 +124,7 @@ typedef struct AwH3State {
AwA10PITState timer;
AwH3ClockCtlState ccu;
AwCpuCfgState cpucfg;
+ AwH3DramCtlState dramc;
AwH3SysCtrlState sysctrl;
AwSidState sid;
AwSdHostState mmc0;
diff --git a/include/hw/misc/allwinner-h3-dramc.h b/include/hw/misc/allwinner-h3-dramc.h
new file mode 100644
index 0000000000..bacdf236b7
--- /dev/null
+++ b/include/hw/misc/allwinner-h3-dramc.h
@@ -0,0 +1,106 @@
+/*
+ * Allwinner H3 SDRAM Controller emulation
+ *
+ * Copyright (C) 2019 Niek Linnenbank <nieklinnenbank@gmail.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef HW_MISC_ALLWINNER_H3_DRAMC_H
+#define HW_MISC_ALLWINNER_H3_DRAMC_H
+
+#include "qom/object.h"
+#include "hw/sysbus.h"
+#include "exec/hwaddr.h"
+
+/**
+ * Constants
+ * @{
+ */
+
+/** Highest register address used by DRAMCOM module */
+#define AW_H3_DRAMCOM_REGS_MAXADDR (0x804)
+
+/** Total number of known DRAMCOM registers */
+#define AW_H3_DRAMCOM_REGS_NUM (AW_H3_DRAMCOM_REGS_MAXADDR / \
+ sizeof(uint32_t))
+
+/** Highest register address used by DRAMCTL module */
+#define AW_H3_DRAMCTL_REGS_MAXADDR (0x88c)
+
+/** Total number of known DRAMCTL registers */
+#define AW_H3_DRAMCTL_REGS_NUM (AW_H3_DRAMCTL_REGS_MAXADDR / \
+ sizeof(uint32_t))
+
+/** Highest register address used by DRAMPHY module */
+#define AW_H3_DRAMPHY_REGS_MAXADDR (0x4)
+
+/** Total number of known DRAMPHY registers */
+#define AW_H3_DRAMPHY_REGS_NUM (AW_H3_DRAMPHY_REGS_MAXADDR / \
+ sizeof(uint32_t))
+
+/** @} */
+
+/**
+ * Object model
+ * @{
+ */
+
+#define TYPE_AW_H3_DRAMC "allwinner-h3-dramc"
+#define AW_H3_DRAMC(obj) \
+ OBJECT_CHECK(AwH3DramCtlState, (obj), TYPE_AW_H3_DRAMC)
+
+/** @} */
+
+/**
+ * Allwinner H3 SDRAM Controller object instance state.
+ */
+typedef struct AwH3DramCtlState {
+ /*< private >*/
+ SysBusDevice parent_obj;
+ /*< public >*/
+
+ /** Physical base address for start of RAM */
+ hwaddr ram_addr;
+
+ /** Total RAM size in megabytes */
+ uint32_t ram_size;
+
+ /**
+ * @name Memory Regions
+ * @{
+ */
+
+ MemoryRegion row_mirror; /**< Simulates rows for RAM size detection */
+ MemoryRegion row_mirror_alias; /**< Alias of the row which is mirrored */
+ MemoryRegion dramcom_iomem; /**< DRAMCOM module I/O registers */
+ MemoryRegion dramctl_iomem; /**< DRAMCTL module I/O registers */
+ MemoryRegion dramphy_iomem; /**< DRAMPHY module I/O registers */
+
+ /** @} */
+
+ /**
+ * @name Hardware Registers
+ * @{
+ */
+
+ uint32_t dramcom[AW_H3_DRAMCOM_REGS_NUM]; /**< Array of DRAMCOM registers */
+ uint32_t dramctl[AW_H3_DRAMCTL_REGS_NUM]; /**< Array of DRAMCTL registers */
+ uint32_t dramphy[AW_H3_DRAMPHY_REGS_NUM] ;/**< Array of DRAMPHY registers */
+
+ /** @} */
+
+} AwH3DramCtlState;
+
+#endif /* HW_MISC_ALLWINNER_H3_DRAMC_H */
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-30 11:11:52 +0000