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| author | Philippe Mathieu-Daudé <philmd@linaro.org> | 2024-11-09 19:35:36 +0100 |
|---|---|---|
| committer | Philippe Mathieu-Daudé <philmd@linaro.org> | 2025-01-13 17:16:03 +0100 |
| commit | fa3ca9aa1ceb9b762f4c7a51245226f247e35560 (patch) | |
| tree | c531d19248806a1583dddbaabda9229722c10e20 | |
| parent | 6909b616efbc9b627a0c9ea87d25a10d508cc879 (diff) | |
| download | qemu-fa3ca9aa1ceb9b762f4c7a51245226f247e35560.zip qemu-fa3ca9aa1ceb9b762f4c7a51245226f247e35560.tar.gz qemu-fa3ca9aa1ceb9b762f4c7a51245226f247e35560.tar.bz2 | |
hw/net/xilinx_ethlite: Map MDIO registers (as unimplemented)
Rather than handling the MDIO registers as RAM, map them
as unimplemented I/O within the device MR.
The memory flat view becomes:
(qemu) info mtree -f
FlatView #0
Root memory region: system
0000000081000000-00000000810007e3 (prio 0, i/o): xlnx.xps-ethernetlite
00000000810007e4-00000000810007f3 (prio 0, i/o): ethlite.mdio
00000000810007f4-0000000081001fff (prio 0, i/o): xlnx.xps-ethernetlite @00000000000007f4
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Message-Id: <20241112181044.92193-7-philmd@linaro.org>
| -rw-r--r-- | hw/net/xilinx_ethlite.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/hw/net/xilinx_ethlite.c b/hw/net/xilinx_ethlite.c index 88ab331..442467a 100644 --- a/hw/net/xilinx_ethlite.c +++ b/hw/net/xilinx_ethlite.c @@ -28,15 +28,18 @@ #include "qemu/osdep.h" #include "qemu/module.h" #include "qom/object.h" +#include "qapi/error.h" #include "exec/tswap.h" #include "hw/sysbus.h" #include "hw/irq.h" #include "hw/qdev-properties.h" +#include "hw/misc/unimp.h" #include "net/net.h" #include "trace.h" #define R_TX_BUF0 0 #define BUFSZ_MAX 0x07e4 +#define A_MDIO_BASE 0x07e4 #define R_TX_LEN0 (0x07f4 / 4) #define R_TX_GIE0 (0x07f8 / 4) #define R_TX_CTRL0 (0x07fc / 4) @@ -72,6 +75,7 @@ struct XlnxXpsEthLite uint32_t c_rx_pingpong; unsigned int port_index; /* dual port RAM index */ + UnimplementedDeviceState mdio; uint32_t regs[R_MAX]; }; @@ -232,6 +236,14 @@ static void xilinx_ethlite_realize(DeviceState *dev, Error **errp) { XlnxXpsEthLite *s = XILINX_ETHLITE(dev); + object_initialize_child(OBJECT(dev), "ethlite.mdio", &s->mdio, + TYPE_UNIMPLEMENTED_DEVICE); + qdev_prop_set_string(DEVICE(&s->mdio), "name", "ethlite.mdio"); + qdev_prop_set_uint64(DEVICE(&s->mdio), "size", 4 * 4); + sysbus_realize(SYS_BUS_DEVICE(&s->mdio), &error_fatal); + memory_region_add_subregion(&s->mmio, A_MDIO_BASE, + sysbus_mmio_get_region(SYS_BUS_DEVICE(&s->mdio), 0)); + qemu_macaddr_default_if_unset(&s->conf.macaddr); s->nic = qemu_new_nic(&net_xilinx_ethlite_info, &s->conf, object_get_typename(OBJECT(dev)), dev->id, |