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Thu, 15 Oct 2026 11:11:30 -0700 (PDT) Received: from localhost.localdomain ([2606:6d00:159:2900:919:5388:4e10:5949]) by smtp.gmail.com with ESMTPSA id d75a77b69052e-536127efe4asm32130611cf.19.2026.10.15.11.11.29 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Thu, 15 Oct 2026 11:11:30 -0700 (PDT) From: Marcelo Manzo To: qemu-devel@nongnu.org, qemu-arm@nongnu.org Cc: Peter Maydell , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Sergey Kambalin , Sergey Kambalin , Marcelo Manzo , Jason Wang Subject: [PATCH v3 05/16] hw/net/bcm2838_genet: add GENET register structs, part 1/4 Date: Thu, 15 Oct 2026 14:11:10 -0400 Message-ID: <20261015181122.60608-6-marcelomanzo@gmail.com> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20261015181122.60608-1-marcelomanzo@gmail.com> References: <20261015181122.60608-1-marcelomanzo@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::834; envelope-from=marcelomanzo@gmail.com; helo=mail-qt1-x834.google.com X-Spam_score_int: -10 X-Spam_score: -1.1 X-Spam_bar: - X-Spam_report: (-1.1 / 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, FORGED_GMAIL_RCVD=1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development 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 From: Sergey Kambalin Add the SYS, GR_BRIDGE, EXT, INTRL0, and INTRL1 register block layouts and the top-level BCM2838GenetRegs/BCM2838GenetState structs, plus REG32/FIELD accessors for the revision-control and interrupt-status registers. Part of Sergey Kambalin's original Raspberry Pi 4B PCIe/GENET networking series (patchwork series 829638, posted to qemu-devel in 2024, never merged). Carried forward and completed by Marcelo Manzo. Signed-off-by: Sergey Kambalin Signed-off-by: Marcelo Manzo --- hw/net/bcm2838_genet.c | 37 ++++++++++++++++ include/hw/net/bcm2838_genet.h | 77 +++++++++++++++++++++++++++++++++- 2 files changed, 113 insertions(+), 1 deletion(-) diff --git a/hw/net/bcm2838_genet.c b/hw/net/bcm2838_genet.c index 2ff93a3417..ff6602c1f3 100644 --- a/hw/net/bcm2838_genet.c +++ b/hw/net/bcm2838_genet.c @@ -15,10 +15,47 @@ #include "hw/core/irq.h" #include "net/checksum.h" #include "system/dma.h" +#include "hw/core/registerfields.h" #include "hw/core/resettable.h" #include "hw/net/bcm2838_genet.h" #include "trace.h" +REG32(GENET_SYS_REV_CTRL, 0) +FIELD(GENET_SYS_REV_CTRL, GPHY_REV, 0, 16) +FIELD(GENET_SYS_REV_CTRL, MINOR_REV, 16, 4) +FIELD(GENET_SYS_REV_CTRL, RSVD_20_23, 20, 4) +FIELD(GENET_SYS_REV_CTRL, MAJOR_REV, 24, 4) +FIELD(GENET_SYS_REV_CTRL, RSVD_28_31, 28, 4) + +REG32(GENET_INTRL_0, 0) +FIELD(GENET_INTRL_0, SCB, 0, 1) +FIELD(GENET_INTRL_0, EPHY, 1, 1) +FIELD(GENET_INTRL_0, PHY_DET_R, 2, 1) +FIELD(GENET_INTRL_0, PHY_DET_F, 3, 1) +FIELD(GENET_INTRL_0, LINK_UP, 4, 1) +FIELD(GENET_INTRL_0, LINK_DOWN, 5, 1) +FIELD(GENET_INTRL_0, UMAC, 6, 1) +FIELD(GENET_INTRL_0, UMAC_TSV, 7, 1) +FIELD(GENET_INTRL_0, TBUF_UNDERRUN, 8, 1) +FIELD(GENET_INTRL_0, RBUF_OVERFLOW, 9, 1) +FIELD(GENET_INTRL_0, HFB_SM, 10, 1) +FIELD(GENET_INTRL_0, HFB_MM, 11, 1) +FIELD(GENET_INTRL_0, MPD_R, 12, 1) +FIELD(GENET_INTRL_0, RXDMA_MBDONE, 13, 1) +FIELD(GENET_INTRL_0, RXDMA_PDONE, 14, 1) +FIELD(GENET_INTRL_0, RXDMA_BDONE, 15, 1) +FIELD(GENET_INTRL_0, TXDMA_MBDONE, 16, 1) +FIELD(GENET_INTRL_0, TXDMA_PDONE, 17, 1) +FIELD(GENET_INTRL_0, TXDMA_BDONE, 18, 1) +FIELD(GENET_INTRL_0, RSVD_19_22, 19, 4) +FIELD(GENET_INTRL_0, MDIO_DONE, 23, 1) +FIELD(GENET_INTRL_0, MDIO_ERROR, 24, 1) +FIELD(GENET_INTRL_0, RSVD_25_31, 25, 4) + +REG32(GENET_INTRL_1, 0) +FIELD(GENET_INTRL_1, TX_INTRS, 0, 16) +FIELD(GENET_INTRL_1, RX_INTRS, 16, 16) + static uint64_t bcm2838_genet_read(void *opaque, hwaddr offset, unsigned size) { diff --git a/include/hw/net/bcm2838_genet.h b/include/hw/net/bcm2838_genet.h index 91cf1773d5..af5e8abd2e 100644 --- a/include/hw/net/bcm2838_genet.h +++ b/include/hw/net/bcm2838_genet.h @@ -19,7 +19,82 @@ OBJECT_DECLARE_SIMPLE_TYPE(BCM2838GenetState, BCM2838_GENET) #define BCM2838_GENET_REV_MINOR 0 typedef struct { - uint8_t stub_area[0x10000]; /* temporary stub */ + uint32_t rev_ctrl; + uint32_t port_ctrl; + uint32_t rbuf_flush_ctrl; + uint32_t tbuf_flush_ctrl; + uint32_t reserved_0x10[12]; +} BCM2838GenetRegsSys; + +typedef struct { + uint32_t reserved_0x0[16]; +} BCM2838GenetRegsGrBridge; + +typedef struct { + uint32_t pwr_mgmt; + uint32_t reserved_0x4[2]; + uint32_t rgmii_oob_ctrl; + uint32_t reserved_0x10[3]; + uint32_t gphy_ctrl; + uint32_t reserved_0x20[24]; +} BCM2838GenetRegsExt; + +typedef struct { + uint32_t stat; + uint32_t set; + uint32_t clear; + uint32_t mask_status; + uint32_t mask_set; + uint32_t mask_clear; + uint32_t reserved_0x18[10]; +} BCM2838GenetRegsIntrl0; + +typedef struct { + uint32_t stat; + uint32_t set; + uint32_t clear; + uint32_t mask_status; + uint32_t mask_set; + uint32_t mask_clear; + uint32_t reserved_0x18[10]; +} BCM2838GenetRegsIntrl1; + +typedef struct { + uint32_t ctrl; + uint32_t reserved_0x4[2]; + uint32_t status; + uint32_t reserved_0x10; + uint32_t chk_ctrl; + uint32_t reserved_0x18[31]; + uint32_t ovfl_cnt; + uint32_t err_cnt; + uint32_t energy_ctrl; + uint32_t reserved_0xA0[5]; + uint32_t size_ctrl; + uint32_t reserved_0xB8[18]; +} BCM2838GenetRegsRbuf; + +typedef struct { + uint32_t ctrl; + uint32_t reserved_0x4[2]; + uint32_t bp_mc; + uint32_t reserved_0x10; + uint32_t energy_ctrl; + uint32_t reserved_0x18[58]; +} BCM2838GenetRegsTbuf; + +typedef struct { + BCM2838GenetRegsSys sys; + BCM2838GenetRegsGrBridge gr_bridge; + BCM2838GenetRegsExt ext; + uint32_t reserved_0x100[64]; + BCM2838GenetRegsIntrl0 intrl0; + BCM2838GenetRegsIntrl1 intrl1; + uint32_t reserved_0x280[32]; + BCM2838GenetRegsRbuf rbuf; + uint32_t reserved_0x400[128]; + BCM2838GenetRegsTbuf tbuf; + uint32_t reserved_0x700[64]; } BCM2838GenetRegs; struct BCM2838GenetState { -- 2.55.0