diff options
Diffstat (limited to 'include/hw/misc/sifive_e_prci.h')
-rw-r--r-- | include/hw/misc/sifive_e_prci.h | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/include/hw/misc/sifive_e_prci.h b/include/hw/misc/sifive_e_prci.h new file mode 100644 index 000000000..262ca1618 --- /dev/null +++ b/include/hw/misc/sifive_e_prci.h @@ -0,0 +1,73 @@ +/* + * QEMU SiFive E PRCI (Power, Reset, Clock, Interrupt) interface + * + * Copyright (c) 2017 SiFive, Inc. + * + * 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_E_PRCI_H +#define HW_SIFIVE_E_PRCI_H +#include "qom/object.h" + +enum { + SIFIVE_E_PRCI_HFROSCCFG = 0x0, + SIFIVE_E_PRCI_HFXOSCCFG = 0x4, + SIFIVE_E_PRCI_PLLCFG = 0x8, + SIFIVE_E_PRCI_PLLOUTDIV = 0xC +}; + +enum { + SIFIVE_E_PRCI_HFROSCCFG_RDY = (1 << 31), + SIFIVE_E_PRCI_HFROSCCFG_EN = (1 << 30) +}; + +enum { + SIFIVE_E_PRCI_HFXOSCCFG_RDY = (1 << 31), + SIFIVE_E_PRCI_HFXOSCCFG_EN = (1 << 30) +}; + +enum { + SIFIVE_E_PRCI_PLLCFG_PLLSEL = (1 << 16), + SIFIVE_E_PRCI_PLLCFG_REFSEL = (1 << 17), + SIFIVE_E_PRCI_PLLCFG_BYPASS = (1 << 18), + SIFIVE_E_PRCI_PLLCFG_LOCK = (1 << 31) +}; + +enum { + SIFIVE_E_PRCI_PLLOUTDIV_DIV1 = (1 << 8) +}; + +#define SIFIVE_E_PRCI_REG_SIZE 0x1000 + +#define TYPE_SIFIVE_E_PRCI "riscv.sifive.e.prci" + +typedef struct SiFiveEPRCIState SiFiveEPRCIState; +DECLARE_INSTANCE_CHECKER(SiFiveEPRCIState, SIFIVE_E_PRCI, + TYPE_SIFIVE_E_PRCI) + +struct SiFiveEPRCIState { + /*< private >*/ + SysBusDevice parent_obj; + + /*< public >*/ + MemoryRegion mmio; + uint32_t hfrosccfg; + uint32_t hfxosccfg; + uint32_t pllcfg; + uint32_t plloutdiv; +}; + +DeviceState *sifive_e_prci_create(hwaddr addr); + +#endif |