Signed-off-by: Sergey Kambalin <sergey.kambalin@auriga.com>
---
hw/misc/bcm2838_thermal.c | 2 +-
hw/net/bcm2838_genet.c | 99 ++++++++++++++++++++++++++++++++++
hw/net/meson.build | 2 +
hw/net/trace-events | 16 ++++++
include/hw/net/bcm2838_genet.h | 40 ++++++++++++++
5 files changed, 158 insertions(+), 1 deletion(-)
create mode 100644 hw/net/bcm2838_genet.c
create mode 100644 include/hw/net/bcm2838_genet.h
diff --git a/hw/misc/bcm2838_thermal.c b/hw/misc/bcm2838_thermal.c
index 2301f657d0..372962b9ba 100644
--- a/hw/misc/bcm2838_thermal.c
+++ b/hw/misc/bcm2838_thermal.c
@@ -80,7 +80,7 @@ static void bcm2838_thermal_class_init(ObjectClass *klass, void *data)
dc->realize = bcm2838_thermal_realize;
- /* This device has no state: no need for vmstate or reset */
+ /* This device has nothing to save: no need for vmstate or reset */
}
static const TypeInfo bcm2838_thermal_info = {
diff --git a/hw/net/bcm2838_genet.c b/hw/net/bcm2838_genet.c
new file mode 100644
index 0000000000..4420486e00
--- /dev/null
+++ b/hw/net/bcm2838_genet.c
@@ -0,0 +1,99 @@
+/*
+ * BCM2838 Gigabit Ethernet emulation
+ *
+ * Copyright (C) 2022 Ovchinnikov Vitalii <vitalii.ovchinnikov@auriga.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#include "qemu/osdep.h"
+#include "qemu/module.h"
+#include "qemu/log.h"
+#include "qemu/error-report.h"
+#include "net/eth.h"
+#include "qapi/error.h"
+#include "hw/irq.h"
+#include "net/checksum.h"
+#include "sysemu/dma.h"
+#include "hw/net/bcm2838_genet.h"
+#include "trace.h"
+
+
+static uint64_t bcm2838_genet_read(void *opaque, hwaddr offset, unsigned size)
+{
+ uint64_t value = ~0;
+
+ qemu_log_mask(
+ LOG_GUEST_ERROR,
+ "%s: out-of-range access, %u bytes @ offset 0x%04" PRIx64 "\n",
+ __func__, size, offset);
+
+ trace_bcm2838_genet_read(size, offset, value);
+ return value;
+}
+
+static void bcm2838_genet_write(void *opaque, hwaddr offset, uint64_t value,
+ unsigned size) {
+ qemu_log_mask(
+ LOG_GUEST_ERROR,
+ "%s: out-of-range access, %u bytes @ offset 0x%04" PRIx64 "\n",
+ __func__, size, offset);
+}
+
+static const MemoryRegionOps bcm2838_genet_ops = {
+ .read = bcm2838_genet_read,
+ .write = bcm2838_genet_write,
+ .endianness = DEVICE_NATIVE_ENDIAN,
+ .impl = {.max_access_size = 4},
+ .valid = {.min_access_size = 4},
+};
+
+
+static void bcm2838_genet_realize(DeviceState *dev, Error **errp)
+{
+ BCM2838GenetState *s = BCM2838_GENET(dev);
+ SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
+
+ /* Controller registers */
+ memory_region_init_io(&s->regs_mr, OBJECT(s), &bcm2838_genet_ops, s,
+ "bcm2838_genet_regs", sizeof(s->regs));
+ sysbus_init_mmio(sbd, &s->regs_mr);
+}
+
+static void bcm2838_genet_phy_reset(BCM2838GenetState *s)
+{
+ trace_bcm2838_genet_phy_reset("done");
+}
+
+static void bcm2838_genet_reset(DeviceState *d)
+{
+ BCM2838GenetState *s = BCM2838_GENET(d);
+
+ memset(&s->regs, 0x00, sizeof(s->regs));
+
+ trace_bcm2838_genet_reset("done");
+
+ bcm2838_genet_phy_reset(s);
+}
+
+static void bcm2838_genet_class_init(ObjectClass *class, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(class);
+
+ dc->realize = bcm2838_genet_realize;
+ dc->reset = bcm2838_genet_reset;
+}
+
+static const TypeInfo bcm2838_genet_info = {
+ .name = TYPE_BCM2838_GENET,
+ .parent = TYPE_SYS_BUS_DEVICE,
+ .instance_size = sizeof(BCM2838GenetState),
+ .class_init = bcm2838_genet_class_init,
+};
+
+static void bcm2838_genet_register(void)
+{
+ type_register_static(&bcm2838_genet_info);
+}
+
+type_init(bcm2838_genet_register)
diff --git a/hw/net/meson.build b/hw/net/meson.build
index f64651c467..d513a8d029 100644
--- a/hw/net/meson.build
+++ b/hw/net/meson.build
@@ -72,4 +72,6 @@ system_ss.add(when: 'CONFIG_ROCKER', if_true: files(
system_ss.add(when: 'CONFIG_ALL', if_true: files('rocker/qmp-norocker.c'))
system_ss.add(files('rocker/rocker-hmp-cmds.c'))
+system_ss.add(when: 'CONFIG_RASPI', if_true: files('bcm2838_genet.c'))
+
subdir('can')
diff --git a/hw/net/trace-events b/hw/net/trace-events
index 387e32e153..4081bd09d6 100644
--- a/hw/net/trace-events
+++ b/hw/net/trace-events
@@ -494,3 +494,19 @@ xen_netdev_connect(int dev, unsigned int tx, unsigned int rx, int port) "vif%u t
xen_netdev_frontend_changed(const char *dev, int state) "vif%s state %d"
xen_netdev_tx(int dev, int ref, int off, int len, unsigned int flags, const char *c, const char *d, const char *m, const char *e) "vif%u ref %u off %u len %u flags 0x%x%s%s%s%s"
xen_netdev_rx(int dev, int idx, int status, int flags) "vif%u idx %d status %d flags 0x%x"
+# bcm2838_genet.c
+bcm2838_genet_read(unsigned int size, uint64_t offset, uint64_t value) "%u bytes @ 0x%04" PRIx64 ": 0x%016" PRIx64
+bcm2838_genet_write(unsigned int size, uint64_t offset, uint64_t value) "%u bytes @ 0x%04" PRIx64 ": 0x%016" PRIx64
+bcm2838_genet_can_receive(const char *state) "receive is %s"
+bcm2838_genet_receive(ssize_t bytes_received) "%zd bytes received"
+bcm2838_genet_phy_update_link(const char *link_state) "link is %s"
+bcm2838_genet_phy_reset(const char *status) "PHY reset %s"
+bcm2838_genet_reset(const char *status) "MAC reset %s"
+bcm2838_genet_mac_address(const char *info) "%s"
+bcm2838_genet_tx_dma(const char *dma_state) "TX DMA %s"
+bcm2838_genet_tx_dma_ring(uint32_t ring_en) "TX DMA enabled rings: 0x%05x"
+bcm2838_genet_tx_dma_ring_buf(uint32_t ring_buf_en) "TX DMA enabled ring buffers: 0x%05x"
+bcm2838_genet_tx_dma_ring_active(unsigned int ring, const char *ring_state) "ring %u is %s"
+bcm2838_genet_tx_request(unsigned int ring_idx, uint32_t prod_idx, uint32_t cons_idx) "ring %u, PROD_INDEX %u, CONS_INDEX %u"
+bcm2838_genet_tx(unsigned int ring_idx, uint64_t desc_idx, uint32_t desc_status, uint64_t data_addr) "ring %u, descriptor %" PRIu64 ": 0x%08x, data @ 0x%08" PRIx64
+bcm2838_genet_rx_dma_ring_active(unsigned int ring, const char *ring_state) "ring %u is %s"
diff --git a/include/hw/net/bcm2838_genet.h b/include/hw/net/bcm2838_genet.h
new file mode 100644
index 0000000000..d166a5c24c
--- /dev/null
+++ b/include/hw/net/bcm2838_genet.h
@@ -0,0 +1,40 @@
+/*
+ * BCM2838 Gigabit Ethernet emulation
+ *
+ * Copyright (C) 2022 Ovchinnikov Vitalii <vitalii.ovchinnikov@auriga.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#ifndef BCM2838_GENET_H
+#define BCM2838_GENET_H
+
+#include "net/net.h"
+#include "hw/sysbus.h"
+
+#define TYPE_BCM2838_GENET "bcm2838-genet"
+OBJECT_DECLARE_SIMPLE_TYPE(BCM2838GenetState, BCM2838_GENET)
+
+#define BCM2838_GENET_REV_MAJOR 6
+#define BCM2838_GENET_REV_MINOR 0
+
+typedef struct {
+ uint8_t stub_area[0x10000]; /* temporary stub */
+} BCM2838GenetRegs;
+
+struct BCM2838GenetState {
+ /*< private >*/
+ SysBusDevice parent_obj;
+
+ /*< public >*/
+
+ MemoryRegion regs_mr;
+ AddressSpace dma_as;
+
+ BCM2838GenetRegs regs;
+
+ qemu_irq irq_default;
+ qemu_irq irq_prio;
+};
+
+#endif /* BCM2838_GENET_H */
--
2.34.1