| 1 | /* |
| 2 | * Allwinner SPI Bus Serial Interface registers definition |
| 3 | * |
| 4 | * Copyright (C) 2024 Strahinja Jankovic. <strahinja.p.jankovic@gmail.com> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify it |
| 7 | * under the terms of the GNU General Public License as published by the |
| 8 | * Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, but WITHOUT |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 14 | * for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License along |
| 17 | * with this program; if not, see <http://www.gnu.org/licenses/>. |
| 18 | * |
| 19 | * SPDX-License-Identifier: GPL-2.0-or-later |
| 20 | */ |
| 21 | |
| 22 | #ifndef ALLWINNER_A10_SPI_H |
| 23 | #define ALLWINNER_A10_SPI_H |
| 24 | |
| 25 | #include "hw/ssi/ssi.h" |
| 26 | #include "hw/core/sysbus.h" |
| 27 | #include "qemu/fifo8.h" |
| 28 | #include "qom/object.h" |
| 29 | |
| 30 | /** Size of register I/O address space used by SPI device */ |
| 31 | #define AW_A10_SPI_IOSIZE (0x1000) |
| 32 | |
| 33 | /** Total number of known registers */ |
| 34 | #define AW_A10_SPI_REGS_NUM (AW_A10_SPI_IOSIZE / sizeof(uint32_t)) |
| 35 | #define AW_A10_SPI_FIFO_SIZE (64) |
| 36 | #define AW_A10_SPI_CS_LINES_NR (4) |
| 37 | |
| 38 | #define TYPE_AW_A10_SPI "allwinner.spi" |
| 39 | OBJECT_DECLARE_SIMPLE_TYPE(AWA10SPIState, AW_A10_SPI) |
| 40 | |
| 41 | struct AWA10SPIState { |
| 42 | /*< private >*/ |
| 43 | SysBusDevice parent_obj; |
| 44 | |
| 45 | /*< public >*/ |
| 46 | MemoryRegion iomem; |
| 47 | SSIBus *bus; |
| 48 | qemu_irq irq; |
| 49 | qemu_irq cs_lines[AW_A10_SPI_CS_LINES_NR]; |
| 50 | |
| 51 | uint32_t regs[AW_A10_SPI_REGS_NUM]; |
| 52 | |
| 53 | Fifo8 rx_fifo; |
| 54 | Fifo8 tx_fifo; |
| 55 | }; |
| 56 | |
| 57 | #endif /* ALLWINNER_A10_SPI_H */ |