| /* |
| * QEMU Allwinner AHCI Emulation |
| * |
| * 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 "hw/hw.h" |
| #include "qemu/error-report.h" |
| #include "sysemu/dma.h" |
| #include "hw/ide/internal.h" |
| #include "hw/ide/ahci_internal.h" |
| |
| #include "trace.h" |
| |
| #define ALLWINNER_AHCI_BISTAFR ((0xa0 - ALLWINNER_AHCI_MMIO_OFF) / 4) |
| #define ALLWINNER_AHCI_BISTCR ((0xa4 - ALLWINNER_AHCI_MMIO_OFF) / 4) |
| #define ALLWINNER_AHCI_BISTFCTR ((0xa8 - ALLWINNER_AHCI_MMIO_OFF) / 4) |
| #define ALLWINNER_AHCI_BISTSR ((0xac - ALLWINNER_AHCI_MMIO_OFF) / 4) |
| #define ALLWINNER_AHCI_BISTDECR ((0xb0 - ALLWINNER_AHCI_MMIO_OFF) / 4) |
| #define ALLWINNER_AHCI_DIAGNR0 ((0xb4 - ALLWINNER_AHCI_MMIO_OFF) / 4) |
| #define ALLWINNER_AHCI_DIAGNR1 ((0xb8 - ALLWINNER_AHCI_MMIO_OFF) / 4) |
| #define ALLWINNER_AHCI_OOBR ((0xbc - ALLWINNER_AHCI_MMIO_OFF) / 4) |
| #define ALLWINNER_AHCI_PHYCS0R ((0xc0 - ALLWINNER_AHCI_MMIO_OFF) / 4) |
| #define ALLWINNER_AHCI_PHYCS1R ((0xc4 - ALLWINNER_AHCI_MMIO_OFF) / 4) |
| #define ALLWINNER_AHCI_PHYCS2R ((0xc8 - ALLWINNER_AHCI_MMIO_OFF) / 4) |
| #define ALLWINNER_AHCI_TIMER1MS ((0xe0 - ALLWINNER_AHCI_MMIO_OFF) / 4) |
| #define ALLWINNER_AHCI_GPARAM1R ((0xe8 - ALLWINNER_AHCI_MMIO_OFF) / 4) |
| #define ALLWINNER_AHCI_GPARAM2R ((0xec - ALLWINNER_AHCI_MMIO_OFF) / 4) |
| #define ALLWINNER_AHCI_PPARAMR ((0xf0 - ALLWINNER_AHCI_MMIO_OFF) / 4) |
| #define ALLWINNER_AHCI_TESTR ((0xf4 - ALLWINNER_AHCI_MMIO_OFF) / 4) |
| #define ALLWINNER_AHCI_VERSIONR ((0xf8 - ALLWINNER_AHCI_MMIO_OFF) / 4) |
| #define ALLWINNER_AHCI_IDR ((0xfc - ALLWINNER_AHCI_MMIO_OFF) / 4) |
| #define ALLWINNER_AHCI_RWCR ((0xfc - ALLWINNER_AHCI_MMIO_OFF) / 4) |
| |
| static uint64_t allwinner_ahci_mem_read(void *opaque, hwaddr addr, |
| unsigned size) |
| { |
| AllwinnerAHCIState *a = opaque; |
| AHCIState *s = &(SYSBUS_AHCI(a)->ahci); |
| uint64_t val = a->regs[addr / 4]; |
| |
| switch (addr / 4) { |
| case ALLWINNER_AHCI_PHYCS0R: |
| val |= 0x2 << 28; |
| break; |
| case ALLWINNER_AHCI_PHYCS2R: |
| val &= ~(0x1 << 24); |
| break; |
| } |
| trace_allwinner_ahci_mem_read(s, a, addr, val, size); |
| return val; |
| } |
| |
| static void allwinner_ahci_mem_write(void *opaque, hwaddr addr, |
| uint64_t val, unsigned size) |
| { |
| AllwinnerAHCIState *a = opaque; |
| AHCIState *s = &(SYSBUS_AHCI(a)->ahci); |
| |
| trace_allwinner_ahci_mem_write(s, a, addr, val, size); |
| a->regs[addr / 4] = val; |
| } |
| |
| static const MemoryRegionOps allwinner_ahci_mem_ops = { |
| .read = allwinner_ahci_mem_read, |
| .write = allwinner_ahci_mem_write, |
| .valid.min_access_size = 4, |
| .valid.max_access_size = 4, |
| .endianness = DEVICE_LITTLE_ENDIAN, |
| }; |
| |
| static void allwinner_ahci_init(Object *obj) |
| { |
| SysbusAHCIState *s = SYSBUS_AHCI(obj); |
| AllwinnerAHCIState *a = ALLWINNER_AHCI(obj); |
| |
| memory_region_init_io(&a->mmio, OBJECT(obj), &allwinner_ahci_mem_ops, a, |
| "allwinner-ahci", ALLWINNER_AHCI_MMIO_SIZE); |
| memory_region_add_subregion(&s->ahci.mem, ALLWINNER_AHCI_MMIO_OFF, |
| &a->mmio); |
| } |
| |
| static const VMStateDescription vmstate_allwinner_ahci = { |
| .name = "allwinner-ahci", |
| .version_id = 1, |
| .minimum_version_id = 1, |
| .fields = (VMStateField[]) { |
| VMSTATE_UINT32_ARRAY(regs, AllwinnerAHCIState, |
| ALLWINNER_AHCI_MMIO_SIZE / 4), |
| VMSTATE_END_OF_LIST() |
| } |
| }; |
| |
| static void allwinner_ahci_class_init(ObjectClass *klass, void *data) |
| { |
| DeviceClass *dc = DEVICE_CLASS(klass); |
| |
| dc->vmsd = &vmstate_allwinner_ahci; |
| } |
| |
| static const TypeInfo allwinner_ahci_info = { |
| .name = TYPE_ALLWINNER_AHCI, |
| .parent = TYPE_SYSBUS_AHCI, |
| .instance_size = sizeof(AllwinnerAHCIState), |
| .instance_init = allwinner_ahci_init, |
| .class_init = allwinner_ahci_class_init, |
| }; |
| |
| static void sysbus_ahci_register_types(void) |
| { |
| type_register_static(&allwinner_ahci_info); |
| } |
| |
| type_init(sysbus_ahci_register_types) |