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[176.184.27.250]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-381eda1433esm15896532f8f.111.2024.11.12.10.11.24 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Tue, 12 Nov 2024 10:11:25 -0800 (PST) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Cc: "Edgar E. Iglesias" , Richard Henderson , Peter Maydell , Anton Johansson , Jason Wang , qemu-arm@nongnu.org, =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Thomas Huth , Alistair Francis , Paolo Bonzini , Gustavo Romero , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Subject: [PATCH 06/20] hw/net/xilinx_ethlite: Map MDIO registers (as unimplemented) Date: Tue, 12 Nov 2024 19:10:30 +0100 Message-ID: <20241112181044.92193-7-philmd@linaro.org> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20241112181044.92193-1-philmd@linaro.org> References: <20241112181044.92193-1-philmd@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2a00:1450:4864:20::431; envelope-from=philmd@linaro.org; helo=mail-wr1-x431.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org 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 --- hw/net/xilinx_ethlite.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/hw/net/xilinx_ethlite.c b/hw/net/xilinx_ethlite.c index e6f6179fce..76b1e7d826 100644 --- a/hw/net/xilinx_ethlite.c +++ b/hw/net/xilinx_ethlite.c @@ -25,13 +25,17 @@ #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 A_MDIO_BASE 0x07e4 + #define R_TX_BUF0 0 #define R_TX_LEN0 (0x07f4 / 4) #define R_TX_GIE0 (0x07f8 / 4) @@ -71,6 +75,7 @@ struct XlnxXpsEthLite unsigned int txbuf; unsigned int rxbuf; + UnimplementedDeviceState mdio; uint32_t regs[R_MAX]; }; @@ -231,6 +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, -- 2.45.2