Drop the deprecated lm32 target

Target lm32 was deprecated in commit d8498005122, v5.2.0.  See there
for rationale.

Some of its code lives on in device models derived from milkymist
ones: hw/char/digic-uart.c and hw/display/bcm2835_fb.c.

Cc: Michael Walle <michael@walle.cc>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20210503084034.3804963-2-armbru@redhat.com>
Acked-by: Michael Walle <michael@walle.cc>
[Trivial conflicts resolved, reST markup fixed]

3 files changed, 0 insertions, 560 deletions

diff --git a/hw/net/meson.build b/hw/net/meson.build
index af0749c42b..bdf71f1f40 100644
--- a/hw/net/meson.build
+++ b/hw/net/meson.build
@@ -39,7 +39,6 @@ softmmu_ss.add(when: 'CONFIG_NPCM7XX', if_true: files('npcm7xx_emc.c'))
 
 softmmu_ss.add(when: 'CONFIG_ETRAXFS', if_true: files('etraxfs_eth.c'))
 softmmu_ss.add(when: 'CONFIG_COLDFIRE', if_true: files('mcf_fec.c'))
-specific_ss.add(when: 'CONFIG_MILKYMIST', if_true: files('milkymist-minimac2.c'))
 specific_ss.add(when: 'CONFIG_PSERIES', if_true: files('spapr_llan.c'))
 specific_ss.add(when: 'CONFIG_XILINX_ETHLITE', if_true: files('xilinx_ethlite.c'))
 
diff --git a/hw/net/milkymist-minimac2.c b/hw/net/milkymist-minimac2.c
deleted file mode 100644
index 5826944fd5..0000000000
--- a/hw/net/milkymist-minimac2.c
+++ /dev/null
@@ -1,547 +0,0 @@
-/*
- *  QEMU model of the Milkymist minimac2 block.
- *
- *  Copyright (c) 2011 Michael Walle <michael@walle.cc>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, see <http://www.gnu.org/licenses/>.
- *
- *
- * Specification available at:
- *   not available yet
- *
- */
-
-#include "qemu/osdep.h"
-#include "qapi/error.h"
-#include "qom/object.h"
-#include "cpu.h" /* FIXME: why does this use TARGET_PAGE_ALIGN? */
-#include "hw/irq.h"
-#include "hw/qdev-properties.h"
-#include "hw/sysbus.h"
-#include "migration/vmstate.h"
-#include "trace.h"
-#include "net/net.h"
-#include "qemu/log.h"
-#include "qemu/module.h"
-#include "qemu/error-report.h"
-
-#include <zlib.h>
-
-enum {
-    R_SETUP = 0,
-    R_MDIO,
-    R_STATE0,
-    R_COUNT0,
-    R_STATE1,
-    R_COUNT1,
-    R_TXCOUNT,
-    R_MAX
-};
-
-enum {
-    SETUP_PHY_RST = (1<<0),
-};
-
-enum {
-    MDIO_DO  = (1<<0),
-    MDIO_DI  = (1<<1),
-    MDIO_OE  = (1<<2),
-    MDIO_CLK = (1<<3),
-};
-
-enum {
-    STATE_EMPTY   = 0,
-    STATE_LOADED  = 1,
-    STATE_PENDING = 2,
-};
-
-enum {
-    MDIO_OP_WRITE = 1,
-    MDIO_OP_READ  = 2,
-};
-
-enum mdio_state {
-    MDIO_STATE_IDLE,
-    MDIO_STATE_READING,
-    MDIO_STATE_WRITING,
-};
-
-enum {
-    R_PHY_ID1  = 2,
-    R_PHY_ID2  = 3,
-    R_PHY_MAX  = 32
-};
-
-#define MINIMAC2_MTU 1530
-#define MINIMAC2_BUFFER_SIZE 2048
-
-struct MilkymistMinimac2MdioState {
-    int last_clk;
-    int count;
-    uint32_t data;
-    uint16_t data_out;
-    int state;
-
-    uint8_t phy_addr;
-    uint8_t reg_addr;
-};
-typedef struct MilkymistMinimac2MdioState MilkymistMinimac2MdioState;
-
-#define TYPE_MILKYMIST_MINIMAC2 "milkymist-minimac2"
-OBJECT_DECLARE_SIMPLE_TYPE(MilkymistMinimac2State, MILKYMIST_MINIMAC2)
-
-struct MilkymistMinimac2State {
-    SysBusDevice parent_obj;
-
-    NICState *nic;
-    NICConf conf;
-    char *phy_model;
-    MemoryRegion buffers;
-    MemoryRegion regs_region;
-
-    qemu_irq rx_irq;
-    qemu_irq tx_irq;
-
-    uint32_t regs[R_MAX];
-
-    MilkymistMinimac2MdioState mdio;
-
-    uint16_t phy_regs[R_PHY_MAX];
-
-    uint8_t *rx0_buf;
-    uint8_t *rx1_buf;
-    uint8_t *tx_buf;
-};
-
-static const uint8_t preamble_sfd[] = {
-        0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0xd5
-};
-
-static void minimac2_mdio_write_reg(MilkymistMinimac2State *s,
-        uint8_t phy_addr, uint8_t reg_addr, uint16_t value)
-{
-    trace_milkymist_minimac2_mdio_write(phy_addr, reg_addr, value);
-
-    /* nop */
-}
-
-static uint16_t minimac2_mdio_read_reg(MilkymistMinimac2State *s,
-        uint8_t phy_addr, uint8_t reg_addr)
-{
-    uint16_t r = s->phy_regs[reg_addr];
-
-    trace_milkymist_minimac2_mdio_read(phy_addr, reg_addr, r);
-
-    return r;
-}
-
-static void minimac2_update_mdio(MilkymistMinimac2State *s)
-{
-    MilkymistMinimac2MdioState *m = &s->mdio;
-
-    /* detect rising clk edge */
-    if (m->last_clk == 0 && (s->regs[R_MDIO] & MDIO_CLK)) {
-        /* shift data in */
-        int bit = ((s->regs[R_MDIO] & MDIO_DO)
-                   && (s->regs[R_MDIO] & MDIO_OE)) ? 1 : 0;
-        m->data = (m->data << 1) | bit;
-
-        /* check for sync */
-        if (m->data == 0xffffffff) {
-            m->count = 32;
-        }
-
-        if (m->count == 16) {
-            uint8_t start = (m->data >> 14) & 0x3;
-            uint8_t op = (m->data >> 12) & 0x3;
-            uint8_t ta = (m->data) & 0x3;
-
-            if (start == 1 && op == MDIO_OP_WRITE && ta == 2) {
-                m->state = MDIO_STATE_WRITING;
-            } else if (start == 1 && op == MDIO_OP_READ && (ta & 1) == 0) {
-                m->state = MDIO_STATE_READING;
-            } else {
-                m->state = MDIO_STATE_IDLE;
-            }
-
-            if (m->state != MDIO_STATE_IDLE) {
-                m->phy_addr = (m->data >> 7) & 0x1f;
-                m->reg_addr = (m->data >> 2) & 0x1f;
-            }
-
-            if (m->state == MDIO_STATE_READING) {
-                m->data_out = minimac2_mdio_read_reg(s, m->phy_addr,
-                        m->reg_addr);
-            }
-        }
-
-        if (m->count < 16 && m->state == MDIO_STATE_READING) {
-            int bit = (m->data_out & 0x8000) ? 1 : 0;
-            m->data_out <<= 1;
-
-            if (bit) {
-                s->regs[R_MDIO] |= MDIO_DI;
-            } else {
-                s->regs[R_MDIO] &= ~MDIO_DI;
-            }
-        }
-
-        if (m->count == 0 && m->state) {
-            if (m->state == MDIO_STATE_WRITING) {
-                uint16_t data = m->data & 0xffff;
-                minimac2_mdio_write_reg(s, m->phy_addr, m->reg_addr, data);
-            }
-            m->state = MDIO_STATE_IDLE;
-        }
-        m->count--;
-    }
-
-    m->last_clk = (s->regs[R_MDIO] & MDIO_CLK) ? 1 : 0;
-}
-
-static size_t assemble_frame(uint8_t *buf, size_t size,
-        const uint8_t *payload, size_t payload_size)
-{
-    uint32_t crc;
-
-    if (size < payload_size + 12) {
-        qemu_log_mask(LOG_GUEST_ERROR, "milkymist_minimac2: frame too big "
-                      "(%zd bytes)\n", payload_size);
-        return 0;
-    }
-
-    /* prepend preamble and sfd */
-    memcpy(buf, preamble_sfd, 8);
-
-    /* now copy the payload */
-    memcpy(buf + 8, payload, payload_size);
-
-    /* pad frame if needed */
-    if (payload_size < 60) {
-        memset(buf + payload_size + 8, 0, 60 - payload_size);
-        payload_size = 60;
-    }
-
-    /* append fcs */
-    crc = cpu_to_le32(crc32(0, buf + 8, payload_size));
-    memcpy(buf + payload_size + 8, &crc, 4);
-
-    return payload_size + 12;
-}
-
-static void minimac2_tx(MilkymistMinimac2State *s)
-{
-    uint32_t txcount = s->regs[R_TXCOUNT];
-    uint8_t *buf = s->tx_buf;
-
-    if (txcount < 64) {
-        error_report("milkymist_minimac2: ethernet frame too small (%u < %u)",
-                txcount, 64);
-        goto err;
-    }
-
-    if (txcount > MINIMAC2_MTU) {
-        error_report("milkymist_minimac2: MTU exceeded (%u > %u)",
-                txcount, MINIMAC2_MTU);
-        goto err;
-    }
-
-    if (memcmp(buf, preamble_sfd, 8) != 0) {
-        error_report("milkymist_minimac2: frame doesn't contain the preamble "
-                "and/or the SFD (%02x %02x %02x %02x %02x %02x %02x %02x)",
-                buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], buf[6], buf[7]);
-        goto err;
-    }
-
-    trace_milkymist_minimac2_tx_frame(txcount - 12);
-
-    /* send packet, skipping preamble and sfd */
-    qemu_send_packet_raw(qemu_get_queue(s->nic), buf + 8, txcount - 12);
-
-    s->regs[R_TXCOUNT] = 0;
-
-err:
-    trace_milkymist_minimac2_pulse_irq_tx();
-    qemu_irq_pulse(s->tx_irq);
-}
-
-static void update_rx_interrupt(MilkymistMinimac2State *s)
-{
-    if (s->regs[R_STATE0] == STATE_PENDING
-            || s->regs[R_STATE1] == STATE_PENDING) {
-        trace_milkymist_minimac2_raise_irq_rx();
-        qemu_irq_raise(s->rx_irq);
-    } else {
-        trace_milkymist_minimac2_lower_irq_rx();
-        qemu_irq_lower(s->rx_irq);
-    }
-}
-
-static ssize_t minimac2_rx(NetClientState *nc, const uint8_t *buf, size_t size)
-{
-    MilkymistMinimac2State *s = qemu_get_nic_opaque(nc);
-
-    uint32_t r_count;
-    uint32_t r_state;
-    uint8_t *rx_buf;
-
-    size_t frame_size;
-
-    trace_milkymist_minimac2_rx_frame(buf, size);
-
-    /* choose appropriate slot */
-    if (s->regs[R_STATE0] == STATE_LOADED) {
-        r_count = R_COUNT0;
-        r_state = R_STATE0;
-        rx_buf = s->rx0_buf;
-    } else if (s->regs[R_STATE1] == STATE_LOADED) {
-        r_count = R_COUNT1;
-        r_state = R_STATE1;
-        rx_buf = s->rx1_buf;
-    } else {
-        return 0;
-    }
-
-    /* assemble frame */
-    frame_size = assemble_frame(rx_buf, MINIMAC2_BUFFER_SIZE, buf, size);
-
-    if (frame_size == 0) {
-        return size;
-    }
-
-    trace_milkymist_minimac2_rx_transfer(rx_buf, frame_size);
-
-    /* update slot */
-    s->regs[r_count] = frame_size;
-    s->regs[r_state] = STATE_PENDING;
-
-    update_rx_interrupt(s);
-
-    return size;
-}
-
-static uint64_t
-minimac2_read(void *opaque, hwaddr addr, unsigned size)
-{
-    MilkymistMinimac2State *s = opaque;
-    uint32_t r = 0;
-
-    addr >>= 2;
-    switch (addr) {
-    case R_SETUP:
-    case R_MDIO:
-    case R_STATE0:
-    case R_COUNT0:
-    case R_STATE1:
-    case R_COUNT1:
-    case R_TXCOUNT:
-        r = s->regs[addr];
-        break;
-
-    default:
-        qemu_log_mask(LOG_GUEST_ERROR,
-                      "milkymist_minimac2_rd%d: 0x%" HWADDR_PRIx "\n",
-                      size, addr << 2);
-        break;
-    }
-
-    trace_milkymist_minimac2_memory_read(addr << 2, r);
-
-    return r;
-}
-
-static int minimac2_can_rx(MilkymistMinimac2State *s)
-{
-    if (s->regs[R_STATE0] == STATE_LOADED) {
-        return 1;
-    }
-    if (s->regs[R_STATE1] == STATE_LOADED) {
-        return 1;
-    }
-
-    return 0;
-}
-
-static void
-minimac2_write(void *opaque, hwaddr addr, uint64_t value,
-               unsigned size)
-{
-    MilkymistMinimac2State *s = opaque;
-
-    trace_milkymist_minimac2_memory_write(addr, value);
-
-    addr >>= 2;
-    switch (addr) {
-    case R_MDIO:
-    {
-        /* MDIO_DI is read only */
-        int mdio_di = (s->regs[R_MDIO] & MDIO_DI);
-        s->regs[R_MDIO] = value;
-        if (mdio_di) {
-            s->regs[R_MDIO] |= mdio_di;
-        } else {
-            s->regs[R_MDIO] &= ~mdio_di;
-        }
-
-        minimac2_update_mdio(s);
-    } break;
-    case R_TXCOUNT:
-        s->regs[addr] = value;
-        if (value > 0) {
-            minimac2_tx(s);
-        }
-        break;
-    case R_STATE0:
-    case R_STATE1:
-        s->regs[addr] = value;
-        update_rx_interrupt(s);
-        if (minimac2_can_rx(s)) {
-            qemu_flush_queued_packets(qemu_get_queue(s->nic));
-        }
-        break;
-    case R_SETUP:
-    case R_COUNT0:
-    case R_COUNT1:
-        s->regs[addr] = value;
-        break;
-
-    default:
-        qemu_log_mask(LOG_GUEST_ERROR,
-                      "milkymist_minimac2_wr%d: 0x%" HWADDR_PRIx
-                      " = 0x%" PRIx64 "\n",
-                      size, addr << 2, value);
-        break;
-    }
-}
-
-static const MemoryRegionOps minimac2_ops = {
-    .read = minimac2_read,
-    .write = minimac2_write,
-    .valid = {
-        .min_access_size = 4,
-        .max_access_size = 4,
-    },
-    .endianness = DEVICE_NATIVE_ENDIAN,
-};
-
-static void milkymist_minimac2_reset(DeviceState *d)
-{
-    MilkymistMinimac2State *s = MILKYMIST_MINIMAC2(d);
-    int i;
-
-    for (i = 0; i < R_MAX; i++) {
-        s->regs[i] = 0;
-    }
-    for (i = 0; i < R_PHY_MAX; i++) {
-        s->phy_regs[i] = 0;
-    }
-
-    /* defaults */
-    s->phy_regs[R_PHY_ID1] = 0x0022; /* Micrel KSZ8001L */
-    s->phy_regs[R_PHY_ID2] = 0x161a;
-}
-
-static NetClientInfo net_milkymist_minimac2_info = {
-    .type = NET_CLIENT_DRIVER_NIC,
-    .size = sizeof(NICState),
-    .receive = minimac2_rx,
-};
-
-static void milkymist_minimac2_realize(DeviceState *dev, Error **errp)
-{
-    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
-    MilkymistMinimac2State *s = MILKYMIST_MINIMAC2(dev);
-    size_t buffers_size = TARGET_PAGE_ALIGN(3 * MINIMAC2_BUFFER_SIZE);
-
-    sysbus_init_irq(sbd, &s->rx_irq);
-    sysbus_init_irq(sbd, &s->tx_irq);
-
-    memory_region_init_io(&s->regs_region, OBJECT(dev), &minimac2_ops, s,
-                          "milkymist-minimac2", R_MAX * 4);
-    sysbus_init_mmio(sbd, &s->regs_region);
-
-    /* register buffers memory */
-    memory_region_init_ram_nomigrate(&s->buffers, OBJECT(dev), "milkymist-minimac2.buffers",
-                           buffers_size, &error_fatal);
-    vmstate_register_ram_global(&s->buffers);
-    s->rx0_buf = memory_region_get_ram_ptr(&s->buffers);
-    s->rx1_buf = s->rx0_buf + MINIMAC2_BUFFER_SIZE;
-    s->tx_buf = s->rx1_buf + MINIMAC2_BUFFER_SIZE;
-
-    sysbus_init_mmio(sbd, &s->buffers);
-
-    qemu_macaddr_default_if_unset(&s->conf.macaddr);
-    s->nic = qemu_new_nic(&net_milkymist_minimac2_info, &s->conf,
-                          object_get_typename(OBJECT(dev)), dev->id, s);
-    qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a);
-}
-
-static const VMStateDescription vmstate_milkymist_minimac2_mdio = {
-    .name = "milkymist-minimac2-mdio",
-    .version_id = 1,
-    .minimum_version_id = 1,
-    .fields = (VMStateField[]) {
-        VMSTATE_INT32(last_clk, MilkymistMinimac2MdioState),
-        VMSTATE_INT32(count, MilkymistMinimac2MdioState),
-        VMSTATE_UINT32(data, MilkymistMinimac2MdioState),
-        VMSTATE_UINT16(data_out, MilkymistMinimac2MdioState),
-        VMSTATE_INT32(state, MilkymistMinimac2MdioState),
-        VMSTATE_UINT8(phy_addr, MilkymistMinimac2MdioState),
-        VMSTATE_UINT8(reg_addr, MilkymistMinimac2MdioState),
-        VMSTATE_END_OF_LIST()
-    }
-};
-
-static const VMStateDescription vmstate_milkymist_minimac2 = {
-    .name = "milkymist-minimac2",
-    .version_id = 1,
-    .minimum_version_id = 1,
-    .fields = (VMStateField[]) {
-        VMSTATE_UINT32_ARRAY(regs, MilkymistMinimac2State, R_MAX),
-        VMSTATE_UINT16_ARRAY(phy_regs, MilkymistMinimac2State, R_PHY_MAX),
-        VMSTATE_STRUCT(mdio, MilkymistMinimac2State, 0,
-                vmstate_milkymist_minimac2_mdio, MilkymistMinimac2MdioState),
-        VMSTATE_END_OF_LIST()
-    }
-};
-
-static Property milkymist_minimac2_properties[] = {
-    DEFINE_NIC_PROPERTIES(MilkymistMinimac2State, conf),
-    DEFINE_PROP_STRING("phy_model", MilkymistMinimac2State, phy_model),
-    DEFINE_PROP_END_OF_LIST(),
-};
-
-static void milkymist_minimac2_class_init(ObjectClass *klass, void *data)
-{
-    DeviceClass *dc = DEVICE_CLASS(klass);
-
-    dc->realize = milkymist_minimac2_realize;
-    dc->reset = milkymist_minimac2_reset;
-    dc->vmsd = &vmstate_milkymist_minimac2;
-    device_class_set_props(dc, milkymist_minimac2_properties);
-}
-
-static const TypeInfo milkymist_minimac2_info = {
-    .name          = TYPE_MILKYMIST_MINIMAC2,
-    .parent        = TYPE_SYS_BUS_DEVICE,
-    .instance_size = sizeof(MilkymistMinimac2State),
-    .class_init    = milkymist_minimac2_class_init,
-};
-
-static void milkymist_minimac2_register_types(void)
-{
-    type_register_static(&milkymist_minimac2_info);
-}
-
-type_init(milkymist_minimac2_register_types)
diff --git a/hw/net/trace-events b/hw/net/trace-events
index baf25ffa7e..314e21fa99 100644
--- a/hw/net/trace-events
+++ b/hw/net/trace-events
@@ -19,18 +19,6 @@ mdio_bitbang(bool mdc, bool mdio, int state, uint16_t cnt, unsigned int drive) "
 lance_mem_readw(uint64_t addr, uint32_t ret) "addr=0x%"PRIx64"val=0x%04x"
 lance_mem_writew(uint64_t addr, uint32_t val) "addr=0x%"PRIx64"val=0x%04x"
 
-# milkymist-minimac2.c
-milkymist_minimac2_memory_read(uint32_t addr, uint32_t value) "addr 0x%08x value 0x%08x"
-milkymist_minimac2_memory_write(uint32_t addr, uint32_t value) "addr 0x%08x value 0x%08x"
-milkymist_minimac2_mdio_write(uint8_t phy_addr, uint8_t addr, uint16_t value) "phy_addr 0x%02x addr 0x%02x value 0x%04x"
-milkymist_minimac2_mdio_read(uint8_t phy_addr, uint8_t addr, uint16_t value) "phy_addr 0x%02x addr 0x%02x value 0x%04x"
-milkymist_minimac2_tx_frame(uint32_t length) "length %u"
-milkymist_minimac2_rx_frame(const void *buf, uint32_t length) "buf %p length %u"
-milkymist_minimac2_rx_transfer(const void *buf, uint32_t length) "buf %p length %d"
-milkymist_minimac2_raise_irq_rx(void) "Raise IRQ RX"
-milkymist_minimac2_lower_irq_rx(void) "Lower IRQ RX"
-milkymist_minimac2_pulse_irq_tx(void) "Pulse IRQ TX"
-
 # mipsnet.c
 mipsnet_send(uint32_t size) "sending len=%u"
 mipsnet_receive(uint32_t size) "receiving len=%u"