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Diffstat (limited to 'include/hw/ssi/sifive_spi.h')
| -rw-r--r-- | include/hw/ssi/sifive_spi.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/include/hw/ssi/sifive_spi.h b/include/hw/ssi/sifive_spi.h new file mode 100644 index 0000000000..47d0d6a47c --- /dev/null +++ b/include/hw/ssi/sifive_spi.h @@ -0,0 +1,47 @@ +/* + * QEMU model of the SiFive SPI Controller + * + * Copyright (c) 2021 Wind River Systems, Inc. + * + * Author: + * Bin Meng <bin.meng@windriver.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2 or later, as published by the Free Software Foundation. + * + * This program is distributed in the hope 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_SIFIVE_SPI_H +#define HW_SIFIVE_SPI_H + +#define SIFIVE_SPI_REG_NUM (0x78 / 4) + +#define TYPE_SIFIVE_SPI "sifive.spi" +#define SIFIVE_SPI(obj) OBJECT_CHECK(SiFiveSPIState, (obj), TYPE_SIFIVE_SPI) + +typedef struct SiFiveSPIState { + SysBusDevice parent_obj; + + MemoryRegion mmio; + qemu_irq irq; + + uint32_t num_cs; + qemu_irq *cs_lines; + + SSIBus *spi; + + Fifo8 tx_fifo; + Fifo8 rx_fifo; + + uint32_t regs[SIFIVE_SPI_REG_NUM]; +} SiFiveSPIState; + +#endif /* HW_SIFIVE_SPI_H */ |