summary refs log tree commit diff stats
path: root/hw/riscv/sifive_prci.c
diff options
context:
space:
mode:
Diffstat (limited to 'hw/riscv/sifive_prci.c')
-rw-r--r--hw/riscv/sifive_prci.c125
1 files changed, 0 insertions, 125 deletions
diff --git a/hw/riscv/sifive_prci.c b/hw/riscv/sifive_prci.c
deleted file mode 100644
index 9837b6166f..0000000000
--- a/hw/riscv/sifive_prci.c
+++ /dev/null
@@ -1,125 +0,0 @@
-/*
- * QEMU SiFive PRCI (Power, Reset, Clock, Interrupt)
- *
- * Copyright (c) 2017 SiFive, Inc.
- *
- * Simple model of the PRCI to emulate register reads made by the SDK BSP
- *
- * 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/>.
- */
-
-#include "qemu/osdep.h"
-#include "hw/hw.h"
-#include "hw/sysbus.h"
-#include "qemu/module.h"
-#include "target/riscv/cpu.h"
-#include "hw/hw.h"
-#include "hw/riscv/sifive_prci.h"
-
-static uint64_t sifive_prci_read(void *opaque, hwaddr addr, unsigned int size)
-{
-    SiFivePRCIState *s = opaque;
-    switch (addr) {
-    case SIFIVE_PRCI_HFROSCCFG:
-        return s->hfrosccfg;
-    case SIFIVE_PRCI_HFXOSCCFG:
-        return s->hfxosccfg;
-    case SIFIVE_PRCI_PLLCFG:
-        return s->pllcfg;
-    case SIFIVE_PRCI_PLLOUTDIV:
-        return s->plloutdiv;
-    }
-    hw_error("%s: read: addr=0x%x\n", __func__, (int)addr);
-    return 0;
-}
-
-static void sifive_prci_write(void *opaque, hwaddr addr,
-           uint64_t val64, unsigned int size)
-{
-    SiFivePRCIState *s = opaque;
-    switch (addr) {
-    case SIFIVE_PRCI_HFROSCCFG:
-        s->hfrosccfg = (uint32_t) val64;
-        /* OSC stays ready */
-        s->hfrosccfg |= SIFIVE_PRCI_HFROSCCFG_RDY;
-        break;
-    case SIFIVE_PRCI_HFXOSCCFG:
-        s->hfxosccfg = (uint32_t) val64;
-        /* OSC stays ready */
-        s->hfxosccfg |= SIFIVE_PRCI_HFXOSCCFG_RDY;
-        break;
-    case SIFIVE_PRCI_PLLCFG:
-        s->pllcfg = (uint32_t) val64;
-        /* PLL stays locked */
-        s->pllcfg |= SIFIVE_PRCI_PLLCFG_LOCK;
-        break;
-    case SIFIVE_PRCI_PLLOUTDIV:
-        s->plloutdiv = (uint32_t) val64;
-        break;
-    default:
-        hw_error("%s: bad write: addr=0x%x v=0x%x\n",
-                 __func__, (int)addr, (int)val64);
-    }
-}
-
-static const MemoryRegionOps sifive_prci_ops = {
-    .read = sifive_prci_read,
-    .write = sifive_prci_write,
-    .endianness = DEVICE_NATIVE_ENDIAN,
-    .valid = {
-        .min_access_size = 4,
-        .max_access_size = 4
-    }
-};
-
-static void sifive_prci_init(Object *obj)
-{
-    SiFivePRCIState *s = SIFIVE_PRCI(obj);
-
-    memory_region_init_io(&s->mmio, obj, &sifive_prci_ops, s,
-                          TYPE_SIFIVE_PRCI, 0x8000);
-    sysbus_init_mmio(SYS_BUS_DEVICE(obj), &s->mmio);
-
-    s->hfrosccfg = (SIFIVE_PRCI_HFROSCCFG_RDY | SIFIVE_PRCI_HFROSCCFG_EN);
-    s->hfxosccfg = (SIFIVE_PRCI_HFROSCCFG_RDY | SIFIVE_PRCI_HFROSCCFG_EN);
-    s->pllcfg = (SIFIVE_PRCI_PLLCFG_REFSEL | SIFIVE_PRCI_PLLCFG_BYPASS |
-                SIFIVE_PRCI_PLLCFG_LOCK);
-    s->plloutdiv = SIFIVE_PRCI_PLLOUTDIV_DIV1;
-
-}
-
-static const TypeInfo sifive_prci_info = {
-    .name          = TYPE_SIFIVE_PRCI,
-    .parent        = TYPE_SYS_BUS_DEVICE,
-    .instance_size = sizeof(SiFivePRCIState),
-    .instance_init = sifive_prci_init,
-};
-
-static void sifive_prci_register_types(void)
-{
-    type_register_static(&sifive_prci_info);
-}
-
-type_init(sifive_prci_register_types)
-
-
-/*
- * Create PRCI device.
- */
-DeviceState *sifive_prci_create(hwaddr addr)
-{
-    DeviceState *dev = qdev_create(NULL, TYPE_SIFIVE_PRCI);
-    qdev_init_nofail(dev);
-    sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, addr);
-    return dev;
-}