This patch implements the basic registers of GMAC device and sets
registers for networking functionalities.
Tested:
The following message shows up with the change:
Broadcom BCM54612E stmmac-0:00: attached PHY driver [Broadcom BCM54612E] (mii_bus:phy_addr=stmmac-0:00, irq=POLL)
stmmaceth f0802000.eth eth0: Link is Up - 1Gbps/Full - flow control rx/tx
Change-Id: If71c6d486b95edcccba109ba454870714d7e0940
Signed-off-by: Hao Wu <wuhaotsh@google.com>
Signed-off-by: Nabih Estefan Diaz <nabihestefan@google.com>
Reviewed-by: Tyrone Ting <kfting@nuvoton.com>
Message-id: 20240110234232.4116804-5-nabihestefan@google.com
[PMM: Squashed another patch into this one to avoid compilation failure]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
include/hw/net/npcm_gmac.h | 340 +++++++++++++++++++++++++++
hw/net/npcm_gmac.c | 464 +++++++++++++++++++++++++++++++++++++
hw/net/meson.build | 2 +-
hw/net/trace-events | 12 +
4 files changed, 817 insertions(+), 1 deletion(-)
create mode 100644 include/hw/net/npcm_gmac.h
create mode 100644 hw/net/npcm_gmac.c
diff --git a/include/hw/net/npcm_gmac.h b/include/hw/net/npcm_gmac.h
new file mode 100644
index 00000000000..d0a37e69884
--- /dev/null
+++ b/include/hw/net/npcm_gmac.h
@@ -0,0 +1,340 @@
+/*
+ * Nuvoton NPCM7xx/8xx GMAC Module
+ *
+ * Copyright 2022 Google LLC
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License
+ * for more details.
+ */
+
+#ifndef NPCM_GMAC_H
+#define NPCM_GMAC_H
+
+#include "hw/irq.h"
+#include "hw/sysbus.h"
+#include "net/net.h"
+
+#define NPCM_GMAC_NR_REGS (0x1060 / sizeof(uint32_t))
+
+#define NPCM_GMAC_MAX_PHYS 32
+#define NPCM_GMAC_MAX_PHY_REGS 32
+
+struct NPCMGMACRxDesc {
+ uint32_t rdes0;
+ uint32_t rdes1;
+ uint32_t rdes2;
+ uint32_t rdes3;
+};
+
+/* NPCMGMACRxDesc.flags values */
+/* RDES2 and RDES3 are buffer addresses */
+/* Owner: 0 = software, 1 = dma */
+#define RX_DESC_RDES0_OWN BIT(31)
+/* Destination Address Filter Fail */
+#define RX_DESC_RDES0_DEST_ADDR_FILT_FAIL BIT(30)
+/* Frame length */
+#define RX_DESC_RDES0_FRAME_LEN_MASK(word) extract32(word, 16, 14)
+/* Frame length Shift*/
+#define RX_DESC_RDES0_FRAME_LEN_SHIFT 16
+/* Error Summary */
+#define RX_DESC_RDES0_ERR_SUMM_MASK BIT(15)
+/* Descriptor Error */
+#define RX_DESC_RDES0_DESC_ERR_MASK BIT(14)
+/* Source Address Filter Fail */
+#define RX_DESC_RDES0_SRC_ADDR_FILT_FAIL_MASK BIT(13)
+/* Length Error */
+#define RX_DESC_RDES0_LEN_ERR_MASK BIT(12)
+/* Overflow Error */
+#define RX_DESC_RDES0_OVRFLW_ERR_MASK BIT(11)
+/* VLAN Tag */
+#define RX_DESC_RDES0_VLAN_TAG_MASK BIT(10)
+/* First Descriptor */
+#define RX_DESC_RDES0_FIRST_DESC_MASK BIT(9)
+/* Last Descriptor */
+#define RX_DESC_RDES0_LAST_DESC_MASK BIT(8)
+/* IPC Checksum Error/Giant Frame */
+#define RX_DESC_RDES0_IPC_CHKSM_ERR_GNT_FRM_MASK BIT(7)
+/* Late Collision */
+#define RX_DESC_RDES0_LT_COLL_MASK BIT(6)
+/* Frame Type */
+#define RX_DESC_RDES0_FRM_TYPE_MASK BIT(5)
+/* Receive Watchdog Timeout */
+#define RX_DESC_RDES0_REC_WTCHDG_TMT_MASK BIT(4)
+/* Receive Error */
+#define RX_DESC_RDES0_RCV_ERR_MASK BIT(3)
+/* Dribble Bit Error */
+#define RX_DESC_RDES0_DRBL_BIT_ERR_MASK BIT(2)
+/* Cyclcic Redundancy Check Error */
+#define RX_DESC_RDES0_CRC_ERR_MASK BIT(1)
+/* Rx MAC Address/Payload Checksum Error */
+#define RC_DESC_RDES0_RCE_MASK BIT(0)
+
+/* Disable Interrupt on Completion */
+#define RX_DESC_RDES1_DIS_INTR_COMP_MASK BIT(31)
+/* Recieve end of ring */
+#define RX_DESC_RDES1_RC_END_RING_MASK BIT(25)
+/* Second Address Chained */
+#define RX_DESC_RDES1_SEC_ADDR_CHND_MASK BIT(24)
+/* Receive Buffer 2 Size */
+#define RX_DESC_RDES1_BFFR2_SZ_SHIFT 11
+#define RX_DESC_RDES1_BFFR2_SZ_MASK(word) extract32(word, \
+ RX_DESC_RDES1_BFFR2_SZ_SHIFT, 11)
+/* Receive Buffer 1 Size */
+#define RX_DESC_RDES1_BFFR1_SZ_MASK(word) extract32(word, 0, 11)
+
+
+struct NPCMGMACTxDesc {
+ uint32_t tdes0;
+ uint32_t tdes1;
+ uint32_t tdes2;
+ uint32_t tdes3;
+};
+
+/* NPCMGMACTxDesc.flags values */
+/* TDES2 and TDES3 are buffer addresses */
+/* Owner: 0 = software, 1 = gmac */
+#define TX_DESC_TDES0_OWN BIT(31)
+/* Tx Time Stamp Status */
+#define TX_DESC_TDES0_TTSS_MASK BIT(17)
+/* IP Header Error */
+#define TX_DESC_TDES0_IP_HEAD_ERR_MASK BIT(16)
+/* Error Summary */
+#define TX_DESC_TDES0_ERR_SUMM_MASK BIT(15)
+/* Jabber Timeout */
+#define TX_DESC_TDES0_JBBR_TMT_MASK BIT(14)
+/* Frame Flushed */
+#define TX_DESC_TDES0_FRM_FLSHD_MASK BIT(13)
+/* Payload Checksum Error */
+#define TX_DESC_TDES0_PYLD_CHKSM_ERR_MASK BIT(12)
+/* Loss of Carrier */
+#define TX_DESC_TDES0_LSS_CARR_MASK BIT(11)
+/* No Carrier */
+#define TX_DESC_TDES0_NO_CARR_MASK BIT(10)
+/* Late Collision */
+#define TX_DESC_TDES0_LATE_COLL_MASK BIT(9)
+/* Excessive Collision */
+#define TX_DESC_TDES0_EXCS_COLL_MASK BIT(8)
+/* VLAN Frame */
+#define TX_DESC_TDES0_VLAN_FRM_MASK BIT(7)
+/* Collision Count */
+#define TX_DESC_TDES0_COLL_CNT_MASK(word) extract32(word, 3, 4)
+/* Excessive Deferral */
+#define TX_DESC_TDES0_EXCS_DEF_MASK BIT(2)
+/* Underflow Error */
+#define TX_DESC_TDES0_UNDRFLW_ERR_MASK BIT(1)
+/* Deferred Bit */
+#define TX_DESC_TDES0_DFRD_BIT_MASK BIT(0)
+
+/* Interrupt of Completion */
+#define TX_DESC_TDES1_INTERR_COMP_MASK BIT(31)
+/* Last Segment */
+#define TX_DESC_TDES1_LAST_SEG_MASK BIT(30)
+/* First Segment */
+#define TX_DESC_TDES1_FIRST_SEG_MASK BIT(29)
+/* Checksum Insertion Control */
+#define TX_DESC_TDES1_CHKSM_INS_CTRL_MASK(word) extract32(word, 27, 2)
+/* Disable Cyclic Redundancy Check */
+#define TX_DESC_TDES1_DIS_CDC_MASK BIT(26)
+/* Transmit End of Ring */
+#define TX_DESC_TDES1_TX_END_RING_MASK BIT(25)
+/* Secondary Address Chained */
+#define TX_DESC_TDES1_SEC_ADDR_CHND_MASK BIT(24)
+/* Transmit Buffer 2 Size */
+#define TX_DESC_TDES1_BFFR2_SZ_MASK(word) extract32(word, 11, 11)
+/* Transmit Buffer 1 Size */
+#define TX_DESC_TDES1_BFFR1_SZ_MASK(word) extract32(word, 0, 11)
+
+typedef struct NPCMGMACState {
+ SysBusDevice parent;
+
+ MemoryRegion iomem;
+ qemu_irq irq;
+
+ NICState *nic;
+ NICConf conf;
+
+ uint32_t regs[NPCM_GMAC_NR_REGS];
+ uint16_t phy_regs[NPCM_GMAC_MAX_PHYS][NPCM_GMAC_MAX_PHY_REGS];
+} NPCMGMACState;
+
+#define TYPE_NPCM_GMAC "npcm-gmac"
+OBJECT_DECLARE_SIMPLE_TYPE(NPCMGMACState, NPCM_GMAC)
+
+/* Mask for RO bits in Status */
+#define NPCM_DMA_STATUS_RO_MASK(word) (word & 0xfffe0000)
+/* Mask for RO bits in Status */
+#define NPCM_DMA_STATUS_W1C_MASK(word) (word & 0x1e7ff)
+
+/* Transmit Process State */
+#define NPCM_DMA_STATUS_TX_PROCESS_STATE_SHIFT 20
+/* Transmit States */
+#define NPCM_DMA_STATUS_TX_STOPPED_STATE \
+ (0b000)
+#define NPCM_DMA_STATUS_TX_RUNNING_FETCHING_STATE \
+ (0b001)
+#define NPCM_DMA_STATUS_TX_RUNNING_WAITING_STATE \
+ (0b010)
+#define NPCM_DMA_STATUS_TX_RUNNING_READ_STATE \
+ (0b011)
+#define NPCM_DMA_STATUS_TX_SUSPENDED_STATE \
+ (0b110)
+#define NPCM_DMA_STATUS_TX_RUNNING_CLOSING_STATE \
+ (0b111)
+/* Transmit Process State */
+#define NPCM_DMA_STATUS_RX_PROCESS_STATE_SHIFT 17
+/* Receive States */
+#define NPCM_DMA_STATUS_RX_STOPPED_STATE \
+ (0b000)
+#define NPCM_DMA_STATUS_RX_RUNNING_FETCHING_STATE \
+ (0b001)
+#define NPCM_DMA_STATUS_RX_RUNNING_WAITING_STATE \
+ (0b011)
+#define NPCM_DMA_STATUS_RX_SUSPENDED_STATE \
+ (0b100)
+#define NPCM_DMA_STATUS_RX_RUNNING_CLOSING_STATE \
+ (0b101)
+#define NPCM_DMA_STATUS_RX_RUNNING_TRANSFERRING_STATE \
+ (0b111)
+
+
+/* Early Receive Interrupt */
+#define NPCM_DMA_STATUS_ERI BIT(14)
+/* Fatal Bus Error Interrupt */
+#define NPCM_DMA_STATUS_FBI BIT(13)
+/* Early transmit Interrupt */
+#define NPCM_DMA_STATUS_ETI BIT(10)
+/* Receive Watchdog Timout */
+#define NPCM_DMA_STATUS_RWT BIT(9)
+/* Receive Process Stopped */
+#define NPCM_DMA_STATUS_RPS BIT(8)
+/* Receive Buffer Unavailable */
+#define NPCM_DMA_STATUS_RU BIT(7)
+/* Receive Interrupt */
+#define NPCM_DMA_STATUS_RI BIT(6)
+/* Transmit Underflow */
+#define NPCM_DMA_STATUS_UNF BIT(5)
+/* Receive Overflow */
+#define NPCM_DMA_STATUS_OVF BIT(4)
+/* Transmit Jabber Timeout */
+#define NPCM_DMA_STATUS_TJT BIT(3)
+/* Transmit Buffer Unavailable */
+#define NPCM_DMA_STATUS_TU BIT(2)
+/* Transmit Process Stopped */
+#define NPCM_DMA_STATUS_TPS BIT(1)
+/* Transmit Interrupt */
+#define NPCM_DMA_STATUS_TI BIT(0)
+
+/* Normal Interrupt Summary */
+#define NPCM_DMA_STATUS_NIS BIT(16)
+/* Interrupts enabled by NIE */
+#define NPCM_DMA_STATUS_NIS_BITS (NPCM_DMA_STATUS_TI | \
+ NPCM_DMA_STATUS_TU | \
+ NPCM_DMA_STATUS_RI | \
+ NPCM_DMA_STATUS_ERI)
+/* Abnormal Interrupt Summary */
+#define NPCM_DMA_STATUS_AIS BIT(15)
+/* Interrupts enabled by AIE */
+#define NPCM_DMA_STATUS_AIS_BITS (NPCM_DMA_STATUS_TPS | \
+ NPCM_DMA_STATUS_TJT | \
+ NPCM_DMA_STATUS_OVF | \
+ NPCM_DMA_STATUS_UNF | \
+ NPCM_DMA_STATUS_RU | \
+ NPCM_DMA_STATUS_RPS | \
+ NPCM_DMA_STATUS_RWT | \
+ NPCM_DMA_STATUS_ETI | \
+ NPCM_DMA_STATUS_FBI)
+
+/* Early Receive Interrupt Enable */
+#define NPCM_DMA_INTR_ENAB_ERE BIT(14)
+/* Fatal Bus Error Interrupt Enable */
+#define NPCM_DMA_INTR_ENAB_FBE BIT(13)
+/* Early transmit Interrupt Enable */
+#define NPCM_DMA_INTR_ENAB_ETE BIT(10)
+/* Receive Watchdog Timout Enable */
+#define NPCM_DMA_INTR_ENAB_RWE BIT(9)
+/* Receive Process Stopped Enable */
+#define NPCM_DMA_INTR_ENAB_RSE BIT(8)
+/* Receive Buffer Unavailable Enable */
+#define NPCM_DMA_INTR_ENAB_RUE BIT(7)
+/* Receive Interrupt Enable */
+#define NPCM_DMA_INTR_ENAB_RIE BIT(6)
+/* Transmit Underflow Enable */
+#define NPCM_DMA_INTR_ENAB_UNE BIT(5)
+/* Receive Overflow Enable */
+#define NPCM_DMA_INTR_ENAB_OVE BIT(4)
+/* Transmit Jabber Timeout Enable */
+#define NPCM_DMA_INTR_ENAB_TJE BIT(3)
+/* Transmit Buffer Unavailable Enable */
+#define NPCM_DMA_INTR_ENAB_TUE BIT(2)
+/* Transmit Process Stopped Enable */
+#define NPCM_DMA_INTR_ENAB_TSE BIT(1)
+/* Transmit Interrupt Enable */
+#define NPCM_DMA_INTR_ENAB_TIE BIT(0)
+
+/* Normal Interrupt Summary Enable */
+#define NPCM_DMA_INTR_ENAB_NIE BIT(16)
+/* Interrupts enabled by NIE Enable */
+#define NPCM_DMA_INTR_ENAB_NIE_BITS (NPCM_DMA_INTR_ENAB_TIE | \
+ NPCM_DMA_INTR_ENAB_TUE | \
+ NPCM_DMA_INTR_ENAB_RIE | \
+ NPCM_DMA_INTR_ENAB_ERE)
+/* Abnormal Interrupt Summary Enable */
+#define NPCM_DMA_INTR_ENAB_AIE BIT(15)
+/* Interrupts enabled by AIE Enable */
+#define NPCM_DMA_INTR_ENAB_AIE_BITS (NPCM_DMA_INTR_ENAB_TSE | \
+ NPCM_DMA_INTR_ENAB_TJE | \
+ NPCM_DMA_INTR_ENAB_OVE | \
+ NPCM_DMA_INTR_ENAB_UNE | \
+ NPCM_DMA_INTR_ENAB_RUE | \
+ NPCM_DMA_INTR_ENAB_RSE | \
+ NPCM_DMA_INTR_ENAB_RWE | \
+ NPCM_DMA_INTR_ENAB_ETE | \
+ NPCM_DMA_INTR_ENAB_FBE)
+
+/* Flushing Disabled */
+#define NPCM_DMA_CONTROL_FLUSH_MASK BIT(24)
+/* Start/stop Transmit */
+#define NPCM_DMA_CONTROL_START_STOP_TX BIT(13)
+/* Start/stop Receive */
+#define NPCM_DMA_CONTROL_START_STOP_RX BIT(1)
+/* Next receive descriptor start address */
+#define NPCM_DMA_HOST_RX_DESC_MASK(word) ((uint32_t) (word) & ~3u)
+/* Next transmit descriptor start address */
+#define NPCM_DMA_HOST_TX_DESC_MASK(word) ((uint32_t) (word) & ~3u)
+
+/* Receive enable */
+#define NPCM_GMAC_MAC_CONFIG_RX_EN BIT(2)
+/* Transmit enable */
+#define NPCM_GMAC_MAC_CONFIG_TX_EN BIT(3)
+
+/* Frame Receive All */
+#define NPCM_GMAC_FRAME_FILTER_REC_ALL_MASK BIT(31)
+/* Frame HPF Filter*/
+#define NPCM_GMAC_FRAME_FILTER_HPF_MASK BIT(10)
+/* Frame SAF Filter*/
+#define NPCM_GMAC_FRAME_FILTER_SAF_MASK BIT(9)
+/* Frame SAIF Filter*/
+#define NPCM_GMAC_FRAME_FILTER_SAIF_MASK BIT(8)
+/* Frame PCF Filter*/
+#define NPCM_GMAC_FRAME_FILTER_PCF_MASK BIT(word) extract32((word), 6, 2)
+/* Frame DBF Filter*/
+#define NPCM_GMAC_FRAME_FILTER_DBF_MASK BIT(5)
+/* Frame PM Filter*/
+#define NPCM_GMAC_FRAME_FILTER_PM_MASK BIT(4)
+/* Frame DAIF Filter*/
+#define NPCM_GMAC_FRAME_FILTER_DAIF_MASK BIT(3)
+/* Frame HMC Filter*/
+#define NPCM_GMAC_FRAME_FILTER_HMC_MASK BIT(2)
+/* Frame HUC Filter*/
+#define NPCM_GMAC_FRAME_FILTER_HUC_MASK BIT(1)
+/* Frame PR Filter*/
+#define NPCM_GMAC_FRAME_FILTER_PR_MASK BIT(0)
+
+#endif /* NPCM_GMAC_H */
diff --git a/hw/net/npcm_gmac.c b/hw/net/npcm_gmac.c
new file mode 100644
index 00000000000..44c4ffaff42
--- /dev/null
+++ b/hw/net/npcm_gmac.c
@@ -0,0 +1,464 @@
+/*
+ * Nuvoton NPCM7xx/8xx GMAC Module
+ *
+ * Copyright 2022 Google LLC
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License
+ * for more details.
+ *
+ * Unsupported/unimplemented features:
+ * - MII is not implemented, MII_ADDR.BUSY and MII_DATA always return zero
+ * - Precision timestamp (PTP) is not implemented.
+ */
+
+#include "qemu/osdep.h"
+
+#include "hw/registerfields.h"
+#include "hw/net/mii.h"
+#include "hw/net/npcm_gmac.h"
+#include "migration/vmstate.h"
+#include "qemu/log.h"
+#include "qemu/units.h"
+#include "sysemu/dma.h"
+#include "trace.h"
+
+REG32(NPCM_DMA_BUS_MODE, 0x1000)
+REG32(NPCM_DMA_XMT_POLL_DEMAND, 0x1004)
+REG32(NPCM_DMA_RCV_POLL_DEMAND, 0x1008)
+REG32(NPCM_DMA_RX_BASE_ADDR, 0x100c)
+REG32(NPCM_DMA_TX_BASE_ADDR, 0x1010)
+REG32(NPCM_DMA_STATUS, 0x1014)
+REG32(NPCM_DMA_CONTROL, 0x1018)
+REG32(NPCM_DMA_INTR_ENA, 0x101c)
+REG32(NPCM_DMA_MISSED_FRAME_CTR, 0x1020)
+REG32(NPCM_DMA_HOST_TX_DESC, 0x1048)
+REG32(NPCM_DMA_HOST_RX_DESC, 0x104c)
+REG32(NPCM_DMA_CUR_TX_BUF_ADDR, 0x1050)
+REG32(NPCM_DMA_CUR_RX_BUF_ADDR, 0x1054)
+REG32(NPCM_DMA_HW_FEATURE, 0x1058)
+
+REG32(NPCM_GMAC_MAC_CONFIG, 0x0)
+REG32(NPCM_GMAC_FRAME_FILTER, 0x4)
+REG32(NPCM_GMAC_HASH_HIGH, 0x8)
+REG32(NPCM_GMAC_HASH_LOW, 0xc)
+REG32(NPCM_GMAC_MII_ADDR, 0x10)
+REG32(NPCM_GMAC_MII_DATA, 0x14)
+REG32(NPCM_GMAC_FLOW_CTRL, 0x18)
+REG32(NPCM_GMAC_VLAN_FLAG, 0x1c)
+REG32(NPCM_GMAC_VERSION, 0x20)
+REG32(NPCM_GMAC_WAKEUP_FILTER, 0x28)
+REG32(NPCM_GMAC_PMT, 0x2c)
+REG32(NPCM_GMAC_LPI_CTRL, 0x30)
+REG32(NPCM_GMAC_TIMER_CTRL, 0x34)
+REG32(NPCM_GMAC_INT_STATUS, 0x38)
+REG32(NPCM_GMAC_INT_MASK, 0x3c)
+REG32(NPCM_GMAC_MAC0_ADDR_HI, 0x40)
+REG32(NPCM_GMAC_MAC0_ADDR_LO, 0x44)
+REG32(NPCM_GMAC_MAC1_ADDR_HI, 0x48)
+REG32(NPCM_GMAC_MAC1_ADDR_LO, 0x4c)
+REG32(NPCM_GMAC_MAC2_ADDR_HI, 0x50)
+REG32(NPCM_GMAC_MAC2_ADDR_LO, 0x54)
+REG32(NPCM_GMAC_MAC3_ADDR_HI, 0x58)
+REG32(NPCM_GMAC_MAC3_ADDR_LO, 0x5c)
+REG32(NPCM_GMAC_RGMII_STATUS, 0xd8)
+REG32(NPCM_GMAC_WATCHDOG, 0xdc)
+REG32(NPCM_GMAC_PTP_TCR, 0x700)
+REG32(NPCM_GMAC_PTP_SSIR, 0x704)
+REG32(NPCM_GMAC_PTP_STSR, 0x708)
+REG32(NPCM_GMAC_PTP_STNSR, 0x70c)
+REG32(NPCM_GMAC_PTP_STSUR, 0x710)
+REG32(NPCM_GMAC_PTP_STNSUR, 0x714)
+REG32(NPCM_GMAC_PTP_TAR, 0x718)
+REG32(NPCM_GMAC_PTP_TTSR, 0x71c)
+
+/* Register Fields */
+#define NPCM_GMAC_MII_ADDR_BUSY BIT(0)
+#define NPCM_GMAC_MII_ADDR_WRITE BIT(1)
+#define NPCM_GMAC_MII_ADDR_GR(rv) extract16((rv), 6, 5)
+#define NPCM_GMAC_MII_ADDR_PA(rv) extract16((rv), 11, 5)
+
+#define NPCM_GMAC_INT_MASK_LPIIM BIT(10)
+#define NPCM_GMAC_INT_MASK_PMTM BIT(3)
+#define NPCM_GMAC_INT_MASK_RGIM BIT(0)
+
+#define NPCM_DMA_BUS_MODE_SWR BIT(0)
+
+static const uint32_t npcm_gmac_cold_reset_values[NPCM_GMAC_NR_REGS] = {
+ /* Reduce version to 3.2 so that the kernel can enable interrupt. */
+ [R_NPCM_GMAC_VERSION] = 0x00001032,
+ [R_NPCM_GMAC_TIMER_CTRL] = 0x03e80000,
+ [R_NPCM_GMAC_MAC0_ADDR_HI] = 0x8000ffff,
+ [R_NPCM_GMAC_MAC0_ADDR_LO] = 0xffffffff,
+ [R_NPCM_GMAC_MAC1_ADDR_HI] = 0x0000ffff,
+ [R_NPCM_GMAC_MAC1_ADDR_LO] = 0xffffffff,
+ [R_NPCM_GMAC_MAC2_ADDR_HI] = 0x0000ffff,
+ [R_NPCM_GMAC_MAC2_ADDR_LO] = 0xffffffff,
+ [R_NPCM_GMAC_MAC3_ADDR_HI] = 0x0000ffff,
+ [R_NPCM_GMAC_MAC3_ADDR_LO] = 0xffffffff,
+ [R_NPCM_GMAC_PTP_TCR] = 0x00002000,
+ [R_NPCM_DMA_BUS_MODE] = 0x00020101,
+ [R_NPCM_DMA_HW_FEATURE] = 0x100d4f37,
+};
+
+static const uint16_t phy_reg_init[] = {
+ [MII_BMCR] = MII_BMCR_AUTOEN | MII_BMCR_FD | MII_BMCR_SPEED1000,
+ [MII_BMSR] = MII_BMSR_100TX_FD | MII_BMSR_100TX_HD | MII_BMSR_10T_FD |
+ MII_BMSR_10T_HD | MII_BMSR_EXTSTAT | MII_BMSR_AUTONEG |
+ MII_BMSR_LINK_ST | MII_BMSR_EXTCAP,
+ [MII_PHYID1] = 0x0362,
+ [MII_PHYID2] = 0x5e6a,
+ [MII_ANAR] = MII_ANAR_TXFD | MII_ANAR_TX | MII_ANAR_10FD |
+ MII_ANAR_10 | MII_ANAR_CSMACD,
+ [MII_ANLPAR] = MII_ANLPAR_ACK | MII_ANLPAR_PAUSE |
+ MII_ANLPAR_TXFD | MII_ANLPAR_TX | MII_ANLPAR_10FD |
+ MII_ANLPAR_10 | MII_ANLPAR_CSMACD,
+ [MII_ANER] = 0x64 | MII_ANER_NWAY,
+ [MII_ANNP] = 0x2001,
+ [MII_CTRL1000] = MII_CTRL1000_FULL,
+ [MII_STAT1000] = MII_STAT1000_FULL,
+ [MII_EXTSTAT] = 0x3000, /* 1000BASTE_T full-duplex capable */
+};
+
+static void npcm_gmac_soft_reset(NPCMGMACState *gmac)
+{
+ memcpy(gmac->regs, npcm_gmac_cold_reset_values,
+ NPCM_GMAC_NR_REGS * sizeof(uint32_t));
+ /* Clear reset bits */
+ gmac->regs[R_NPCM_DMA_BUS_MODE] &= ~NPCM_DMA_BUS_MODE_SWR;
+}
+
+static void gmac_phy_set_link(NPCMGMACState *gmac, bool active)
+{
+ /* Autonegotiation status mirrors link status. */
+ if (active) {
+ gmac->phy_regs[0][MII_BMSR] |= (MII_BMSR_LINK_ST | MII_BMSR_AN_COMP);
+ } else {
+ gmac->phy_regs[0][MII_BMSR] &= ~(MII_BMSR_LINK_ST | MII_BMSR_AN_COMP);
+ }
+}
+
+static bool gmac_can_receive(NetClientState *nc)
+{
+ return true;
+}
+
+/*
+ * Function that updates the GMAC IRQ
+ * It find the logical OR of the enabled bits for NIS (if enabled)
+ * It find the logical OR of the enabled bits for AIS (if enabled)
+ */
+static void gmac_update_irq(NPCMGMACState *gmac)
+{
+ /*
+ * Check if the normal interrupts summary is enabled
+ * if so, add the bits for the summary that are enabled
+ */
+ if (gmac->regs[R_NPCM_DMA_INTR_ENA] & gmac->regs[R_NPCM_DMA_STATUS] &
+ (NPCM_DMA_INTR_ENAB_NIE_BITS)) {
+ gmac->regs[R_NPCM_DMA_STATUS] |= NPCM_DMA_STATUS_NIS;
+ }
+ /*
+ * Check if the abnormal interrupts summary is enabled
+ * if so, add the bits for the summary that are enabled
+ */
+ if (gmac->regs[R_NPCM_DMA_INTR_ENA] & gmac->regs[R_NPCM_DMA_STATUS] &
+ (NPCM_DMA_INTR_ENAB_AIE_BITS)) {
+ gmac->regs[R_NPCM_DMA_STATUS] |= NPCM_DMA_STATUS_AIS;
+ }
+
+ /* Get the logical OR of both normal and abnormal interrupts */
+ int level = !!((gmac->regs[R_NPCM_DMA_STATUS] &
+ gmac->regs[R_NPCM_DMA_INTR_ENA] &
+ NPCM_DMA_STATUS_NIS) |
+ (gmac->regs[R_NPCM_DMA_STATUS] &
+ gmac->regs[R_NPCM_DMA_INTR_ENA] &
+ NPCM_DMA_STATUS_AIS));
+
+ /* Set the IRQ */
+ trace_npcm_gmac_update_irq(DEVICE(gmac)->canonical_path,
+ gmac->regs[R_NPCM_DMA_STATUS],
+ gmac->regs[R_NPCM_DMA_INTR_ENA],
+ level);
+ qemu_set_irq(gmac->irq, level);
+}
+
+static ssize_t gmac_receive(NetClientState *nc, const uint8_t *buf, size_t len)
+{
+ /* Placeholder. Function will be filled in following patches */
+ return 0;
+}
+
+static void gmac_cleanup(NetClientState *nc)
+{
+ /* Nothing to do yet. */
+}
+
+static void gmac_set_link(NetClientState *nc)
+{
+ NPCMGMACState *gmac = qemu_get_nic_opaque(nc);
+
+ trace_npcm_gmac_set_link(!nc->link_down);
+ gmac_phy_set_link(gmac, !nc->link_down);
+}
+
+static void npcm_gmac_mdio_access(NPCMGMACState *gmac, uint16_t v)
+{
+ bool busy = v & NPCM_GMAC_MII_ADDR_BUSY;
+ uint8_t is_write;
+ uint8_t pa, gr;
+ uint16_t data;
+
+ if (busy) {
+ is_write = v & NPCM_GMAC_MII_ADDR_WRITE;
+ pa = NPCM_GMAC_MII_ADDR_PA(v);
+ gr = NPCM_GMAC_MII_ADDR_GR(v);
+ /* Both pa and gr are 5 bits, so they are less than 32. */
+ g_assert(pa < NPCM_GMAC_MAX_PHYS);
+ g_assert(gr < NPCM_GMAC_MAX_PHY_REGS);
+
+
+ if (v & NPCM_GMAC_MII_ADDR_WRITE) {
+ data = gmac->regs[R_NPCM_GMAC_MII_DATA];
+ /* Clear reset bit for BMCR register */
+ switch (gr) {
+ case MII_BMCR:
+ data &= ~MII_BMCR_RESET;
+ /* Autonegotiation is a W1C bit*/
+ if (data & MII_BMCR_ANRESTART) {
+ /* Tells autonegotiation to not restart again */
+ data &= ~MII_BMCR_ANRESTART;
+ }
+ if ((data & MII_BMCR_AUTOEN) &&
+ !(gmac->phy_regs[pa][MII_BMSR] & MII_BMSR_AN_COMP)) {
+ /* sets autonegotiation as complete */
+ gmac->phy_regs[pa][MII_BMSR] |= MII_BMSR_AN_COMP;
+ /* Resolve AN automatically->need to set this */
+ gmac->phy_regs[0][MII_ANLPAR] = 0x0000;
+ }
+ }
+ gmac->phy_regs[pa][gr] = data;
+ } else {
+ data = gmac->phy_regs[pa][gr];
+ gmac->regs[R_NPCM_GMAC_MII_DATA] = data;
+ }
+ trace_npcm_gmac_mdio_access(DEVICE(gmac)->canonical_path, is_write, pa,
+ gr, data);
+ }
+ gmac->regs[R_NPCM_GMAC_MII_ADDR] = v & ~NPCM_GMAC_MII_ADDR_BUSY;
+}
+
+static uint64_t npcm_gmac_read(void *opaque, hwaddr offset, unsigned size)
+{
+ NPCMGMACState *gmac = opaque;
+ uint32_t v = 0;
+
+ switch (offset) {
+ /* Write only registers */
+ case A_NPCM_DMA_XMT_POLL_DEMAND:
+ case A_NPCM_DMA_RCV_POLL_DEMAND:
+ qemu_log_mask(LOG_GUEST_ERROR,
+ "%s: Read of write-only reg: offset: 0x%04" HWADDR_PRIx
+ "\n", DEVICE(gmac)->canonical_path, offset);
+ break;
+
+ default:
+ v = gmac->regs[offset / sizeof(uint32_t)];
+ }
+
+ trace_npcm_gmac_reg_read(DEVICE(gmac)->canonical_path, offset, v);
+ return v;
+}
+
+static void npcm_gmac_write(void *opaque, hwaddr offset,
+ uint64_t v, unsigned size)
+{
+ NPCMGMACState *gmac = opaque;
+
+ trace_npcm_gmac_reg_write(DEVICE(gmac)->canonical_path, offset, v);
+
+ switch (offset) {
+ /* Read only registers */
+ case A_NPCM_GMAC_VERSION:
+ case A_NPCM_GMAC_INT_STATUS:
+ case A_NPCM_GMAC_RGMII_STATUS:
+ case A_NPCM_GMAC_PTP_STSR:
+ case A_NPCM_GMAC_PTP_STNSR:
+ case A_NPCM_DMA_MISSED_FRAME_CTR:
+ case A_NPCM_DMA_HOST_TX_DESC:
+ case A_NPCM_DMA_HOST_RX_DESC:
+ case A_NPCM_DMA_CUR_TX_BUF_ADDR:
+ case A_NPCM_DMA_CUR_RX_BUF_ADDR:
+ case A_NPCM_DMA_HW_FEATURE:
+ qemu_log_mask(LOG_GUEST_ERROR,
+ "%s: Write of read-only reg: offset: 0x%04" HWADDR_PRIx
+ ", value: 0x%04" PRIx64 "\n",
+ DEVICE(gmac)->canonical_path, offset, v);
+ break;
+
+ case A_NPCM_GMAC_MAC_CONFIG:
+ break;
+
+ case A_NPCM_GMAC_MII_ADDR:
+ npcm_gmac_mdio_access(gmac, v);
+ break;
+
+ case A_NPCM_GMAC_MAC0_ADDR_HI:
+ gmac->regs[offset / sizeof(uint32_t)] = v;
+ gmac->conf.macaddr.a[0] = v >> 8;
+ gmac->conf.macaddr.a[1] = v >> 0;
+ break;
+
+ case A_NPCM_GMAC_MAC0_ADDR_LO:
+ gmac->regs[offset / sizeof(uint32_t)] = v;
+ gmac->conf.macaddr.a[2] = v >> 24;
+ gmac->conf.macaddr.a[3] = v >> 16;
+ gmac->conf.macaddr.a[4] = v >> 8;
+ gmac->conf.macaddr.a[5] = v >> 0;
+ break;
+
+ case A_NPCM_GMAC_MAC1_ADDR_HI:
+ case A_NPCM_GMAC_MAC1_ADDR_LO:
+ case A_NPCM_GMAC_MAC2_ADDR_HI:
+ case A_NPCM_GMAC_MAC2_ADDR_LO:
+ case A_NPCM_GMAC_MAC3_ADDR_HI:
+ case A_NPCM_GMAC_MAC3_ADDR_LO:
+ gmac->regs[offset / sizeof(uint32_t)] = v;
+ qemu_log_mask(LOG_UNIMP,
+ "%s: Only MAC Address 0 is supported. This request "
+ "is ignored.\n", DEVICE(gmac)->canonical_path);
+ break;
+
+ case A_NPCM_DMA_BUS_MODE:
+ gmac->regs[offset / sizeof(uint32_t)] = v;
+ if (v & NPCM_DMA_BUS_MODE_SWR) {
+ npcm_gmac_soft_reset(gmac);
+ }
+ break;
+
+ case A_NPCM_DMA_RCV_POLL_DEMAND:
+ /* We dont actually care about the value */
+ break;
+
+ case A_NPCM_DMA_STATUS:
+ /* Check that RO bits are not written to */
+ if (NPCM_DMA_STATUS_RO_MASK(v)) {
+ qemu_log_mask(LOG_GUEST_ERROR,
+ "%s: Write of read-only bits of reg: offset: 0x%04"
+ HWADDR_PRIx ", value: 0x%04" PRIx64 "\n",
+ DEVICE(gmac)->canonical_path, offset, v);
+ }
+ break;
+
+ default:
+ gmac->regs[offset / sizeof(uint32_t)] = v;
+ break;
+ }
+
+ gmac_update_irq(gmac);
+}
+
+static void npcm_gmac_reset(DeviceState *dev)
+{
+ NPCMGMACState *gmac = NPCM_GMAC(dev);
+
+ npcm_gmac_soft_reset(gmac);
+ memcpy(gmac->phy_regs[0], phy_reg_init, sizeof(phy_reg_init));
+
+ trace_npcm_gmac_reset(DEVICE(gmac)->canonical_path,
+ gmac->phy_regs[0][MII_BMSR]);
+}
+
+static NetClientInfo net_npcm_gmac_info = {
+ .type = NET_CLIENT_DRIVER_NIC,
+ .size = sizeof(NICState),
+ .can_receive = gmac_can_receive,
+ .receive = gmac_receive,
+ .cleanup = gmac_cleanup,
+ .link_status_changed = gmac_set_link,
+};
+
+static const struct MemoryRegionOps npcm_gmac_ops = {
+ .read = npcm_gmac_read,
+ .write = npcm_gmac_write,
+ .endianness = DEVICE_LITTLE_ENDIAN,
+ .valid = {
+ .min_access_size = 4,
+ .max_access_size = 4,
+ .unaligned = false,
+ },
+};
+
+static void npcm_gmac_realize(DeviceState *dev, Error **errp)
+{
+ NPCMGMACState *gmac = NPCM_GMAC(dev);
+ SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
+
+ memory_region_init_io(&gmac->iomem, OBJECT(gmac), &npcm_gmac_ops, gmac,
+ TYPE_NPCM_GMAC, 8 * KiB);
+ sysbus_init_mmio(sbd, &gmac->iomem);
+ sysbus_init_irq(sbd, &gmac->irq);
+
+ qemu_macaddr_default_if_unset(&gmac->conf.macaddr);
+
+ gmac->nic = qemu_new_nic(&net_npcm_gmac_info, &gmac->conf, TYPE_NPCM_GMAC,
+ dev->id, &dev->mem_reentrancy_guard, gmac);
+ qemu_format_nic_info_str(qemu_get_queue(gmac->nic), gmac->conf.macaddr.a);
+ gmac->regs[R_NPCM_GMAC_MAC0_ADDR_HI] = (gmac->conf.macaddr.a[0] << 8) + \
+ gmac->conf.macaddr.a[1];
+ gmac->regs[R_NPCM_GMAC_MAC0_ADDR_LO] = (gmac->conf.macaddr.a[2] << 24) + \
+ (gmac->conf.macaddr.a[3] << 16) + \
+ (gmac->conf.macaddr.a[4] << 8) + \
+ gmac->conf.macaddr.a[5];
+}
+
+static void npcm_gmac_unrealize(DeviceState *dev)
+{
+ NPCMGMACState *gmac = NPCM_GMAC(dev);
+
+ qemu_del_nic(gmac->nic);
+}
+
+static const VMStateDescription vmstate_npcm_gmac = {
+ .name = TYPE_NPCM_GMAC,
+ .version_id = 0,
+ .minimum_version_id = 0,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT32_ARRAY(regs, NPCMGMACState, NPCM_GMAC_NR_REGS),
+ VMSTATE_END_OF_LIST(),
+ },
+};
+
+static Property npcm_gmac_properties[] = {
+ DEFINE_NIC_PROPERTIES(NPCMGMACState, conf),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void npcm_gmac_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ set_bit(DEVICE_CATEGORY_NETWORK, dc->categories);
+ dc->desc = "NPCM GMAC Controller";
+ dc->realize = npcm_gmac_realize;
+ dc->unrealize = npcm_gmac_unrealize;
+ dc->reset = npcm_gmac_reset;
+ dc->vmsd = &vmstate_npcm_gmac;
+ device_class_set_props(dc, npcm_gmac_properties);
+}
+
+static const TypeInfo npcm_gmac_types[] = {
+ {
+ .name = TYPE_NPCM_GMAC,
+ .parent = TYPE_SYS_BUS_DEVICE,
+ .instance_size = sizeof(NPCMGMACState),
+ .class_init = npcm_gmac_class_init,
+ },
+};
+DEFINE_TYPES(npcm_gmac_types)
diff --git a/hw/net/meson.build b/hw/net/meson.build
index 9afceb06191..d4e1dc98389 100644
--- a/hw/net/meson.build
+++ b/hw/net/meson.build
@@ -38,7 +38,7 @@ system_ss.add(when: 'CONFIG_I82596_COMMON', if_true: files('i82596.c'))
system_ss.add(when: 'CONFIG_SUNHME', if_true: files('sunhme.c'))
system_ss.add(when: 'CONFIG_FTGMAC100', if_true: files('ftgmac100.c'))
system_ss.add(when: 'CONFIG_SUNGEM', if_true: files('sungem.c'))
-system_ss.add(when: 'CONFIG_NPCM7XX', if_true: files('npcm7xx_emc.c'))
+system_ss.add(when: 'CONFIG_NPCM7XX', if_true: files('npcm7xx_emc.c', 'npcm_gmac.c'))
system_ss.add(when: 'CONFIG_ETRAXFS', if_true: files('etraxfs_eth.c'))
system_ss.add(when: 'CONFIG_COLDFIRE', if_true: files('mcf_fec.c'))
diff --git a/hw/net/trace-events b/hw/net/trace-events
index 387e32e1533..56057de47f3 100644
--- a/hw/net/trace-events
+++ b/hw/net/trace-events
@@ -467,6 +467,18 @@ npcm7xx_emc_rx_done(uint32_t crxdsa) "RX done, CRXDSA=0x%x"
npcm7xx_emc_reg_read(int emc_num, uint32_t result, const char *name, int regno) "emc%d: 0x%x = reg[%s/%d]"
npcm7xx_emc_reg_write(int emc_num, const char *name, int regno, uint32_t value) "emc%d: reg[%s/%d] = 0x%x"
+# npcm_gmac.c
+npcm_gmac_reg_read(const char *name, uint64_t offset, uint32_t value) "%s: offset: 0x%04" PRIx64 " value: 0x%04" PRIx32
+npcm_gmac_reg_write(const char *name, uint64_t offset, uint32_t value) "%s: offset: 0x%04" PRIx64 " value: 0x%04" PRIx32
+npcm_gmac_mdio_access(const char *name, uint8_t is_write, uint8_t pa, uint8_t gr, uint16_t val) "%s: is_write: %" PRIu8 " pa: %" PRIu8 " gr: %" PRIu8 " val: 0x%04" PRIx16
+npcm_gmac_reset(const char *name, uint16_t value) "%s: phy_regs[0][1]: 0x%04" PRIx16
+npcm_gmac_set_link(bool active) "Set link: active=%u"
+npcm_gmac_update_irq(const char *name, uint32_t status, uint32_t intr_en, int level) "%s: Status Reg: 0x%04" PRIX32 " Interrupt Enable Reg: 0x%04" PRIX32 " IRQ Set: %d"
+
+# npcm_pcs.c
+npcm_pcs_reg_read(const char *name, uint16_t indirect_access_baes, uint64_t offset, uint16_t value) "%s: IND: 0x%02" PRIx16 " offset: 0x%04" PRIx64 " value: 0x%04" PRIx16
+npcm_pcs_reg_write(const char *name, uint16_t indirect_access_baes, uint64_t offset, uint16_t value) "%s: IND: 0x%02" PRIx16 " offset: 0x%04" PRIx64 " value: 0x%04" PRIx16
+
# dp8398x.c
dp8393x_raise_irq(int isr) "raise irq, isr is 0x%04x"
dp8393x_lower_irq(void) "lower irq"
--
2.34.1© 2016 - 2024 Red Hat, Inc.