[PATCH v2 07/19] hw/net/bcm2838_genet: add GENET register structs, part 3/4

[Marcelo Manzo <marcelomanzo@gmail.com>]

From: Sergey Kambalin <serg.oker@gmail.com>

Add the TDMA (transmit DMA ring/length-status) register layout and
field accessors, and the PHY BMCR/BMSR MII register field
definitions.

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 <sergey.kambalin@auriga.com>
Signed-off-by: Marcelo Manzo <marcelomanzo@gmail.com>
---
 hw/net/bcm2838_genet.c         | 88 ++++++++++++++++++++++++++++++++++
 include/hw/net/bcm2838_genet.h | 88 ++++++++++++++++++++++++++++++++++
 2 files changed, 176 insertions(+)

diff --git a/hw/net/bcm2838_genet.c b/hw/net/bcm2838_genet.c
index 12a80534fb..2bc2a770b1 100644
--- a/hw/net/bcm2838_genet.c
+++ b/hw/net/bcm2838_genet.c
@@ -148,6 +148,94 @@ FIELD(GENET_RDMA_LENGTH_STATUS, OWN,        15, 1)
 FIELD(GENET_RDMA_LENGTH_STATUS, BUFLENGTH,  16, 12)
 FIELD(GENET_RDMA_LENGTH_STATUS, RSVD_28_31, 29, 4)
 
+REG32(GENET_TDMA_LENGTH_STATUS,             0)
+FIELD(GENET_TDMA_LENGTH_STATUS, RSVD_0_3,   0, 4)
+FIELD(GENET_TDMA_LENGTH_STATUS, DO_CSUM,    4, 1)
+FIELD(GENET_TDMA_LENGTH_STATUS, OW_CRC,     5, 1)
+FIELD(GENET_TDMA_LENGTH_STATUS, APPEND_CRC, 6, 1)
+FIELD(GENET_TDMA_LENGTH_STATUS, RSVD_7_8,   7, 2)
+FIELD(GENET_TDMA_LENGTH_STATUS, UNDERRUN,   9, 1)
+FIELD(GENET_TDMA_LENGTH_STATUS, RSVD_10_11, 10, 2)
+FIELD(GENET_TDMA_LENGTH_STATUS, WRAP,       12, 1)
+FIELD(GENET_TDMA_LENGTH_STATUS, SOP,        13, 1)
+FIELD(GENET_TDMA_LENGTH_STATUS, EOP,        14, 1)
+FIELD(GENET_TDMA_LENGTH_STATUS, OWN,        15, 1)
+FIELD(GENET_TDMA_LENGTH_STATUS, BUFLENGTH,  16, 12)
+FIELD(GENET_TDMA_LENGTH_STATUS, RSVD_28_31, 29, 4)
+
+REG16(GENET_PHY_BMCR,            0)
+FIELD(GENET_PHY_BMCR, RSVD_0_5,  0, 6)
+FIELD(GENET_PHY_BMCR, SPEED1000, 6, 1)
+FIELD(GENET_PHY_BMCR, CTST,      7, 1)
+FIELD(GENET_PHY_BMCR, FULLDPLX,  8, 1)
+FIELD(GENET_PHY_BMCR, ANRESTART, 9, 1)
+FIELD(GENET_PHY_BMCR, ISOLATE,   10, 1)
+FIELD(GENET_PHY_BMCR, PDOWN,     11, 1)
+FIELD(GENET_PHY_BMCR, AENABLE,   12, 1)
+FIELD(GENET_PHY_BMCR, SPEED100,  13, 1)
+FIELD(GENET_PHY_BMCR, LOOPBACK,  14, 1)
+FIELD(GENET_PHY_BMCR, RESET,     15, 1)
+
+REG16(GENET_PHY_BMSR,               0)
+FIELD(GENET_PHY_BMSR, ERCAP,        0, 1)
+FIELD(GENET_PHY_BMSR, JCD,          1, 1)
+FIELD(GENET_PHY_BMSR, LSTATUS,      2, 1)
+FIELD(GENET_PHY_BMSR, ANEGCAPABLE,  3, 1)
+FIELD(GENET_PHY_BMSR, RFAULT,       4, 1)
+FIELD(GENET_PHY_BMSR, ANEGCOMPLETE, 5, 1)
+FIELD(GENET_PHY_BMSR, RSVD_6_7,     6, 2)
+FIELD(GENET_PHY_BMSR, ESTATEN,      8, 1)
+FIELD(GENET_PHY_BMSR, _100HALF2,    9, 1)
+FIELD(GENET_PHY_BMSR, _100FULL2,    10, 1)
+FIELD(GENET_PHY_BMSR, _10HALF,      11, 1)
+FIELD(GENET_PHY_BMSR, _10FULL,      12, 1)
+FIELD(GENET_PHY_BMSR, _100HALF,     13, 1)
+FIELD(GENET_PHY_BMSR, _100FULL,     14, 1)
+FIELD(GENET_PHY_BMSR, _10BASE4,     15, 1)
+
+REG16(GENET_PHY_LPA,                           0)
+FIELD(GENET_PHY_LPA, SLCT,                     0, 5)
+FIELD(GENET_PHY_LPA, _10HALF_1000XFULL,        5, 1)
+FIELD(GENET_PHY_LPA, _10FULL_1000XHALF,        6, 1)
+FIELD(GENET_PHY_LPA, _100HALF_1000XPAUSE,      7, 1)
+FIELD(GENET_PHY_LPA, _100FULL_1000XPAUSE_ASYM, 8, 1)
+FIELD(GENET_PHY_LPA, _100BASE4,                9, 1)
+FIELD(GENET_PHY_LPA, PAUSE_CAP,                10, 1)
+FIELD(GENET_PHY_LPA, PAUSE_ASYM,               11, 1)
+FIELD(GENET_PHY_LPA, RSVD_12,                  12, 1)
+FIELD(GENET_PHY_LPA, RFAULT,                   13, 1)
+FIELD(GENET_PHY_LPA, LPACK,                    14, 1)
+FIELD(GENET_PHY_LPA, NPAGE,                    15, 1)
+
+REG16(GENET_PHY_STAT_1000,            0)
+FIELD(GENET_PHY_STAT_1000, RSVD_0_9,  0, 10)
+FIELD(GENET_PHY_STAT_1000, HALF,      10, 1)
+FIELD(GENET_PHY_STAT_1000, FULL,      11, 1)
+FIELD(GENET_PHY_STAT_1000, REMRXOK,   12, 1)
+FIELD(GENET_PHY_STAT_1000, LOCALRXOK, 13, 1)
+FIELD(GENET_PHY_STAT_1000, MSRES,     14, 1)
+FIELD(GENET_PHY_STAT_1000, MSFAIL,    15, 1)
+
+REG16(GENET_PHY_AUX_CTRL_0,              0)
+FIELD(GENET_PHY_AUX_CTRL_0, REG_ID_MASK, 0, 3)
+FIELD(GENET_PHY_AUX_CTRL_0, RSVD_3,      3, 1)
+FIELD(GENET_PHY_AUX_CTRL_0, REG_DATA,    4, 8)
+FIELD(GENET_PHY_AUX_CTRL_0, REG_ID,      12, 3)
+FIELD(GENET_PHY_AUX_CTRL_0, MISC_WREN,   15, 1)
+
+REG16(GENET_PHY_AUX_CTRL_1,           0)
+FIELD(GENET_PHY_AUX_CTRL_1, RSVD_0_3, 0, 4)
+FIELD(GENET_PHY_AUX_CTRL_1, REG_DATA, 4, 12)
+
+REG16(GENET_PHY_SHADOW,           0)
+FIELD(GENET_PHY_SHADOW, REG_DATA, 0, 10)
+FIELD(GENET_PHY_SHADOW, REG_ID,   10, 5)
+FIELD(GENET_PHY_SHADOW, WR,       15, 1)
+
+REG16(GENET_PHY_EXP_SEL,           0)
+FIELD(GENET_PHY_EXP_SEL, REG_ID,   0, 8)
+FIELD(GENET_PHY_EXP_SEL, BLOCK_ID, 8, 8)
+
 static uint64_t bcm2838_genet_read(void *opaque, hwaddr offset, unsigned size)
 {
     uint64_t value = ~0;
diff --git a/include/hw/net/bcm2838_genet.h b/include/hw/net/bcm2838_genet.h
index b3893c2dad..fedfbde066 100644
--- a/include/hw/net/bcm2838_genet.h
+++ b/include/hw/net/bcm2838_genet.h
@@ -22,6 +22,9 @@ OBJECT_DECLARE_SIMPLE_TYPE(BCM2838GenetState, BCM2838_GENET)
 #define BCM2838_GENET_DMA_RING_CNT      17
 #define BCM2838_GENET_DMA_RING_DEFAULT  (BCM2838_GENET_DMA_RING_CNT - 1)
 
+#define BCM2838_GENET_HFB_FILTER_CNT      48
+#define BCM2838_GENET_HFB_FILTER_SIZE     128
+
 typedef struct {
     uint32_t rev_ctrl;
     uint32_t port_ctrl;
@@ -169,6 +172,53 @@ typedef struct {
     uint32_t reserved_0x10D0[972];
 } BCM2838GenetRegsRdma;
 
+typedef struct {
+    uint32_t length_status;
+    uint32_t address_lo;
+    uint32_t address_hi;
+} BCM2838GenetTdmaDesc;
+
+typedef struct {
+    uint32_t read_ptr;
+    uint32_t read_ptr_hi;
+    uint32_t cons_index;
+    uint32_t prod_index;
+    uint32_t ring_buf_size;
+    uint32_t start_addr;
+    uint32_t start_addr_hi;
+    uint32_t end_addr;
+    uint32_t end_addr_hi;
+    uint32_t mbuf_done_tresh;
+    uint32_t flow_period;
+    uint32_t write_ptr;
+    uint32_t write_ptr_hi;
+    uint32_t reserved_0x34[3];
+} BCM2838GenetTdmaRing;
+
+typedef struct {
+    BCM2838GenetTdmaDesc descs[BCM2838_GENET_DMA_DESC_CNT];
+    BCM2838GenetTdmaRing rings[BCM2838_GENET_DMA_RING_CNT];
+    uint32_t ring_cfg;
+    uint32_t ctrl;
+    uint32_t status;
+    uint32_t scb_burst_size;
+    uint32_t reserved_0x1050[7];
+    uint32_t arb_ctrl;
+    uint32_t priority[3];
+    uint32_t reserved_0x10D0[993];
+} BCM2838GenetRegsTdma;
+
+typedef struct {
+    uint8_t flt[BCM2838_GENET_HFB_FILTER_CNT * BCM2838_GENET_HFB_FILTER_SIZE
+        * sizeof(uint32_t)];
+    uint32_t reserved_0x6000[1792];
+    uint32_t ctrl;
+    uint32_t flt_enable[2];
+    uint32_t reserved_0x7C0C[4];
+    uint32_t flt_len[BCM2838_GENET_HFB_FILTER_CNT / sizeof(uint32_t)];
+    uint32_t reserved_0x7C4C[237];
+} BCM2838GenetRegsHfb;
+
 typedef struct {
     BCM2838GenetRegsSys sys;
     BCM2838GenetRegsGrBridge gr_bridge;
@@ -184,8 +234,45 @@ typedef struct {
     BCM2838GenetRegsUmac umac;
     uint32_t reserved_0x1000[1024];
     BCM2838GenetRegsRdma rdma;
+    BCM2838GenetRegsTdma tdma;
+    uint32_t reserved_0x6000[2048];
+    BCM2838GenetRegsHfb hfb;
 } BCM2838GenetRegs;
 
+typedef struct {
+    uint16_t bmcr;
+    uint16_t bmsr;
+    uint16_t sid1;
+    uint16_t sid2;
+    uint16_t advertise;
+    uint16_t lpa;
+    uint16_t expansion;
+    uint16_t next_page;
+    uint16_t lpa_next_page;
+    uint16_t ctrl1000;
+    uint16_t stat1000;
+    uint16_t reserved_11_12[2];
+    uint16_t mmd_ctrl;
+    uint16_t mmd_data;
+    uint16_t estatus;
+    uint16_t ecr;
+    uint16_t esr;
+    uint16_t dcounter;
+    uint16_t fcscounter;
+    uint16_t nwaytest;
+    uint16_t exp_data;
+    uint16_t srevision;
+    uint16_t exp_ctrl;
+    uint16_t aux_ctl;
+    uint16_t phyaddr;
+    uint16_t isr;
+    uint16_t imr;
+    uint16_t shd;
+    uint16_t reserved_29;
+    uint16_t rdb_addr;
+    uint16_t rdb_data;
+} BCM2838GenetPhyRegs;
+
 struct BCM2838GenetState {
     /*< private >*/
     SysBusDevice parent_obj;
@@ -196,6 +283,7 @@ struct BCM2838GenetState {
     AddressSpace dma_as;
 
     BCM2838GenetRegs regs;
+    BCM2838GenetPhyRegs phy_regs;
 
     qemu_irq irq_default;
     qemu_irq irq_prio;
-- 
2.47.1