[PATCH 1/5] net: drop Calxeda Highbank xgmac driver support
Ahmad Fatoum
a.fatoum at pengutronix.de
Thu Aug 12 06:03:09 PDT 2021
On 12.08.21 14:19, Ahmad Fatoum wrote:
> Support for MACH_HIGHBANK was removed in f0f96c3322d5
> ("ARM: remove Calxeda Highbank support"). There are no device trees
> either barebox or upstream using this network controller, so remove
> the driver as well.
>
> Fixes: f0f96c3322d5 ("ARM: remove Calxeda Highbank support")
> Signed-off-by: Ahmad Fatoum <a.fatoum at pengutronix.de>
Should've added a cover letter. With the recent virtio/dma and PCI
additions for x86, many network drivers can now be newly enabled
on x86, yielding different warnings/errors.
This series fixes that up.
> ---
> drivers/net/Kconfig | 4 -
> drivers/net/Makefile | 1 -
> drivers/net/xgmac.c | 734 -------------------------------------------
> 3 files changed, 739 deletions(-)
> delete mode 100644 drivers/net/xgmac.c
>
> diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
> index 802169a86e8c..4a290bebbd75 100644
> --- a/drivers/net/Kconfig
> +++ b/drivers/net/Kconfig
> @@ -39,10 +39,6 @@ config DRIVER_NET_AT91_ETHER
> depends on HAS_AT91_ETHER
> select PHYLIB
>
> -config DRIVER_NET_CALXEDA_XGMAC
> - bool "Calxeda xgmac"
> - depends on HAS_DMA
> -
> config DRIVER_NET_CS8900
> bool "cs8900 ethernet driver"
> depends on HAS_CS8900 || COMPILE_TEST
> diff --git a/drivers/net/Makefile b/drivers/net/Makefile
> index fb3e3bdee46a..e5eede634e63 100644
> --- a/drivers/net/Makefile
> +++ b/drivers/net/Makefile
> @@ -4,7 +4,6 @@ obj-$(CONFIG_NET_USB) += usb/
> obj-$(CONFIG_DRIVER_NET_AR231X) += ar231x.o
> obj-$(CONFIG_DRIVER_NET_ARC_EMAC) += arc_emac.o
> obj-$(CONFIG_DRIVER_NET_AT91_ETHER) += at91_ether.o
> -obj-$(CONFIG_DRIVER_NET_CALXEDA_XGMAC) += xgmac.o
> obj-$(CONFIG_DRIVER_NET_CS8900) += cs8900.o
> obj-$(CONFIG_DRIVER_NET_CPSW) += cpsw.o
> obj-$(CONFIG_DRIVER_NET_DAVINCI_EMAC) += davinci_emac.o
> diff --git a/drivers/net/xgmac.c b/drivers/net/xgmac.c
> deleted file mode 100644
> index 136d78804349..000000000000
> --- a/drivers/net/xgmac.c
> +++ /dev/null
> @@ -1,734 +0,0 @@
> -// SPDX-License-Identifier: GPL-2.0-or-later
> -/*
> - * Copyright 2010-2011 Calxeda, Inc.
> - */
> -
> -#include <common.h>
> -#include <dma.h>
> -#include <net.h>
> -#include <clock.h>
> -#include <malloc.h>
> -#include <xfuncs.h>
> -#include <init.h>
> -#include <errno.h>
> -#include <io.h>
> -#include <linux/err.h>
> -
> -#define TX_NUM_DESC 1
> -#define RX_NUM_DESC 32
> -
> -#define ETH_BUF_SZ 2048
> -#define TX_BUF_SZ (ETH_BUF_SZ * TX_NUM_DESC)
> -#define RX_BUF_SZ (ETH_BUF_SZ * RX_NUM_DESC)
> -
> -/* XGMAC Register definitions */
> -#define XGMAC_CONTROL 0x00000000 /* MAC Configuration */
> -#define XGMAC_FRAME_FILTER 0x00000004 /* MAC Frame Filter */
> -#define XGMAC_FLOW_CTRL 0x00000018 /* MAC Flow Control */
> -#define XGMAC_VLAN_TAG 0x0000001C /* VLAN Tags */
> -#define XGMAC_VERSION 0x00000020 /* Version */
> -#define XGMAC_VLAN_INCL 0x00000024 /* VLAN tag for tx frames */
> -#define XGMAC_LPI_CTRL 0x00000028 /* LPI Control and Status */
> -#define XGMAC_LPI_TIMER 0x0000002C /* LPI Timers Control */
> -#define XGMAC_TX_PACE 0x00000030 /* Transmit Pace and Stretch */
> -#define XGMAC_VLAN_HASH 0x00000034 /* VLAN Hash Table */
> -#define XGMAC_DEBUG 0x00000038 /* Debug */
> -#define XGMAC_INT_STAT 0x0000003C /* Interrupt and Control */
> -#define XGMAC_ADDR_HIGH(reg) (0x00000040 + ((reg) * 8))
> -#define XGMAC_ADDR_LOW(reg) (0x00000044 + ((reg) * 8))
> -#define XGMAC_HASH(n) (0x00000300 + (n) * 4) /* HASH table regs */
> -#define XGMAC_NUM_HASH 16
> -#define XGMAC_OMR 0x00000400
> -#define XGMAC_REMOTE_WAKE 0x00000700 /* Remote Wake-Up Frm Filter */
> -#define XGMAC_PMT 0x00000704 /* PMT Control and Status */
> -#define XGMAC_MMC_CTRL 0x00000800 /* XGMAC MMC Control */
> -#define XGMAC_MMC_INTR_RX 0x00000804 /* Recieve Interrupt */
> -#define XGMAC_MMC_INTR_TX 0x00000808 /* Transmit Interrupt */
> -#define XGMAC_MMC_INTR_MASK_RX 0x0000080c /* Recieve Interrupt Mask */
> -#define XGMAC_MMC_INTR_MASK_TX 0x00000810 /* Transmit Interrupt Mask */
> -
> -
> -/* Hardware TX Statistics Counters */
> -#define XGMAC_MMC_TXOCTET_GB_LO 0x00000814
> -#define XGMAC_MMC_TXOCTET_GB_HI 0x00000818
> -#define XGMAC_MMC_TXFRAME_GB_LO 0x0000081C
> -#define XGMAC_MMC_TXFRAME_GB_HI 0x00000820
> -#define XGMAC_MMC_TXBCFRAME_G 0x00000824
> -#define XGMAC_MMC_TXMCFRAME_G 0x0000082C
> -#define XGMAC_MMC_TXUCFRAME_GB 0x00000864
> -#define XGMAC_MMC_TXMCFRAME_GB 0x0000086C
> -#define XGMAC_MMC_TXBCFRAME_GB 0x00000874
> -#define XGMAC_MMC_TXUNDERFLOW 0x0000087C
> -#define XGMAC_MMC_TXOCTET_G_LO 0x00000884
> -#define XGMAC_MMC_TXOCTET_G_HI 0x00000888
> -#define XGMAC_MMC_TXFRAME_G_LO 0x0000088C
> -#define XGMAC_MMC_TXFRAME_G_HI 0x00000890
> -#define XGMAC_MMC_TXPAUSEFRAME 0x00000894
> -#define XGMAC_MMC_TXVLANFRAME 0x0000089C
> -
> -/* Hardware RX Statistics Counters */
> -#define XGMAC_MMC_RXFRAME_GB_LO 0x00000900
> -#define XGMAC_MMC_RXFRAME_GB_HI 0x00000904
> -#define XGMAC_MMC_RXOCTET_GB_LO 0x00000908
> -#define XGMAC_MMC_RXOCTET_GB_HI 0x0000090C
> -#define XGMAC_MMC_RXOCTET_G_LO 0x00000910
> -#define XGMAC_MMC_RXOCTET_G_HI 0x00000914
> -#define XGMAC_MMC_RXBCFRAME_G 0x00000918
> -#define XGMAC_MMC_RXMCFRAME_G 0x00000920
> -#define XGMAC_MMC_RXCRCERR 0x00000928
> -#define XGMAC_MMC_RXRUNT 0x00000930
> -#define XGMAC_MMC_RXJABBER 0x00000934
> -#define XGMAC_MMC_RXUCFRAME_G 0x00000970
> -#define XGMAC_MMC_RXLENGTHERR 0x00000978
> -#define XGMAC_MMC_RXPAUSEFRAME 0x00000988
> -#define XGMAC_MMC_RXOVERFLOW 0x00000990
> -#define XGMAC_MMC_RXVLANFRAME 0x00000998
> -#define XGMAC_MMC_RXWATCHDOG 0x000009a0
> -
> -/* DMA Control and Status Registers */
> -#define XGMAC_DMA_BUS_MODE 0x00000f00 /* Bus Mode */
> -#define XGMAC_DMA_TX_POLL 0x00000f04 /* Transmit Poll Demand */
> -#define XGMAC_DMA_RX_POLL 0x00000f08 /* Received Poll Demand */
> -#define XGMAC_DMA_RX_BASE_ADDR 0x00000f0c /* Receive List Base */
> -#define XGMAC_DMA_TX_BASE_ADDR 0x00000f10 /* Transmit List Base */
> -#define XGMAC_DMA_STATUS 0x00000f14 /* Status Register */
> -#define XGMAC_DMA_CONTROL 0x00000f18 /* Ctrl (Operational Mode) */
> -#define XGMAC_DMA_INTR_ENA 0x00000f1c /* Interrupt Enable */
> -#define XGMAC_DMA_MISS_FRAME_CTR 0x00000f20 /* Missed Frame Counter */
> -#define XGMAC_DMA_RI_WDOG_TIMER 0x00000f24 /* RX Intr Watchdog Timer */
> -#define XGMAC_DMA_AXI_BUS 0x00000f28 /* AXI Bus Mode */
> -#define XGMAC_DMA_AXI_STATUS 0x00000f2C /* AXI Status */
> -#define XGMAC_DMA_HW_FEATURE 0x00000f58 /* Enabled Hardware Features */
> -
> -#define XGMAC_ADDR_AE 0x80000000
> -#define XGMAC_MAX_FILTER_ADDR 31
> -
> -/* PMT Control and Status */
> -#define XGMAC_PMT_POINTER_RESET 0x80000000
> -#define XGMAC_PMT_GLBL_UNICAST 0x00000200
> -#define XGMAC_PMT_WAKEUP_RX_FRM 0x00000040
> -#define XGMAC_PMT_MAGIC_PKT 0x00000020
> -#define XGMAC_PMT_WAKEUP_FRM_EN 0x00000004
> -#define XGMAC_PMT_MAGIC_PKT_EN 0x00000002
> -#define XGMAC_PMT_POWERDOWN 0x00000001
> -
> -#define XGMAC_CONTROL_SPD 0x40000000 /* Speed control */
> -#define XGMAC_CONTROL_SPD_MASK 0x60000000
> -#define XGMAC_CONTROL_SPD_1G 0x60000000
> -#define XGMAC_CONTROL_SPD_2_5G 0x40000000
> -#define XGMAC_CONTROL_SPD_10G 0x00000000
> -#define XGMAC_CONTROL_SARC 0x10000000 /* Source Addr Insert/Replace */
> -#define XGMAC_CONTROL_SARK_MASK 0x18000000
> -#define XGMAC_CONTROL_CAR 0x04000000 /* CRC Addition/Replacement */
> -#define XGMAC_CONTROL_CAR_MASK 0x06000000
> -#define XGMAC_CONTROL_DP 0x01000000 /* Disable Padding */
> -#define XGMAC_CONTROL_WD 0x00800000 /* Disable Watchdog on rx */
> -#define XGMAC_CONTROL_JD 0x00400000 /* Jabber disable */
> -#define XGMAC_CONTROL_JE 0x00100000 /* Jumbo frame */
> -#define XGMAC_CONTROL_LM 0x00001000 /* Loop-back mode */
> -#define XGMAC_CONTROL_IPC 0x00000400 /* Checksum Offload */
> -#define XGMAC_CONTROL_ACS 0x00000080 /* Automatic Pad/FCS Strip */
> -#define XGMAC_CONTROL_DDIC 0x00000010 /* Disable Deficit Idle Count */
> -#define XGMAC_CONTROL_TE 0x00000008 /* Transmitter Enable */
> -#define XGMAC_CONTROL_RE 0x00000004 /* Receiver Enable */
> -
> -/* XGMAC Frame Filter defines */
> -#define XGMAC_FRAME_FILTER_PR 0x00000001 /* Promiscuous Mode */
> -#define XGMAC_FRAME_FILTER_HUC 0x00000002 /* Hash Unicast */
> -#define XGMAC_FRAME_FILTER_HMC 0x00000004 /* Hash Multicast */
> -#define XGMAC_FRAME_FILTER_DAIF 0x00000008 /* DA Inverse Filtering */
> -#define XGMAC_FRAME_FILTER_PM 0x00000010 /* Pass all multicast */
> -#define XGMAC_FRAME_FILTER_DBF 0x00000020 /* Disable Broadcast frames */
> -#define XGMAC_FRAME_FILTER_SAIF 0x00000100 /* Inverse Filtering */
> -#define XGMAC_FRAME_FILTER_SAF 0x00000200 /* Source Address Filter */
> -#define XGMAC_FRAME_FILTER_HPF 0x00000400 /* Hash or perfect Filter */
> -#define XGMAC_FRAME_FILTER_VHF 0x00000800 /* VLAN Hash Filter */
> -#define XGMAC_FRAME_FILTER_VPF 0x00001000 /* VLAN Perfect Filter */
> -#define XGMAC_FRAME_FILTER_RA 0x80000000 /* Receive all mode */
> -
> -#define FIFO_MINUS_1K 0x0
> -#define FIFO_MINUS_2K 0x1
> -#define FIFO_MINUS_3K 0x2
> -#define FIFO_MINUS_4K 0x3
> -#define FIFO_MINUS_6K 0x4
> -#define FIFO_MINUS_8K 0x5
> -#define FIFO_MINUS_12K 0x6
> -#define FIFO_MINUS_16K 0x7
> -
> -/* XGMAC FLOW CTRL defines */
> -#define XGMAC_FLOW_CTRL_PT_MASK 0xffff0000 /* Pause Time Mask */
> -#define XGMAC_FLOW_CTRL_PT_SHIFT 16
> -#define XGMAC_FLOW_CTRL_DZQP 0x00000080 /* Disable Zero-Quanta Phase */
> -#define XGMAC_FLOW_CTRL_PLT 0x00000020 /* Pause Low Threshhold */
> -#define XGMAC_FLOW_CTRL_PLT_SHIFT 4
> -#define XGMAC_FLOW_CTRL_PLT_MASK 0x00000030 /* PLT MASK */
> -#define XGMAC_FLOW_CTRL_UP 0x00000008 /* Unicast Pause Frame Detect */
> -#define XGMAC_FLOW_CTRL_RFE 0x00000004 /* Rx Flow Control Enable */
> -#define XGMAC_FLOW_CTRL_TFE 0x00000002 /* Tx Flow Control Enable */
> -#define XGMAC_FLOW_CTRL_FCB_BPA 0x00000001 /* Flow Control Busy ... */
> -
> -/* XGMAC_INT_STAT reg */
> -#define XGMAC_INT_STAT_PMT 0x0080 /* PMT Interrupt Status */
> -#define XGMAC_INT_STAT_LPI 0x0040 /* LPI Interrupt Status */
> -
> -/* DMA Bus Mode register defines */
> -#define DMA_BUS_MODE_SFT_RESET 0x00000001 /* Software Reset */
> -#define DMA_BUS_MODE_DSL_MASK 0x0000007c /* Descriptor Skip Length */
> -#define DMA_BUS_MODE_DSL_SHIFT 2 /* (in DWORDS) */
> -#define DMA_BUS_MODE_ATDS 0x00000080 /* Alternate Descriptor Size */
> -
> -/* Programmable burst length */
> -#define DMA_BUS_MODE_PBL_MASK 0x00003f00 /* Programmable Burst Len */
> -#define DMA_BUS_MODE_PBL_SHIFT 8
> -#define DMA_BUS_MODE_FB 0x00010000 /* Fixed burst */
> -#define DMA_BUS_MODE_RPBL_MASK 0x003e0000 /* Rx-Programmable Burst Len */
> -#define DMA_BUS_MODE_RPBL_SHIFT 17
> -#define DMA_BUS_MODE_USP 0x00800000
> -#define DMA_BUS_MODE_8PBL 0x01000000
> -#define DMA_BUS_MODE_AAL 0x02000000
> -
> -#define DMA_AXIMODE_ENLPI 0x80000000
> -#define DMA_AXIMODE_MGK 0x40000000
> -#define DMA_AXIMODE_WROSR 0x00100000
> -#define DMA_AXIMODE_WROSR_MASK 0x00F00000
> -#define DMA_AXIMODE_WROSR_SHIFT 20
> -#define DMA_AXIMODE_RDOSR 0x00010000
> -#define DMA_AXIMODE_RDOSR_MASK 0x000F0000
> -#define DMA_AXIMODE_RDOSR_SHIFT 16
> -#define DMA_AXIMODE_AAL 0x00001000
> -#define DMA_AXIMODE_BLEN256 0x00000080
> -#define DMA_AXIMODE_BLEN128 0x00000040
> -#define DMA_AXIMODE_BLEN64 0x00000020
> -#define DMA_AXIMODE_BLEN32 0x00000010
> -#define DMA_AXIMODE_BLEN16 0x00000008
> -#define DMA_AXIMODE_BLEN8 0x00000004
> -#define DMA_AXIMODE_BLEN4 0x00000002
> -#define DMA_AXIMODE_UNDEF 0x00000001
> -
> -/* DMA Bus Mode register defines */
> -#define DMA_BUS_PR_RATIO_MASK 0x0000c000 /* Rx/Tx priority ratio */
> -#define DMA_BUS_PR_RATIO_SHIFT 14
> -#define DMA_BUS_FB 0x00010000 /* Fixed Burst */
> -
> -/* DMA Control register defines */
> -#define DMA_CONTROL_ST 0x00002000 /* Start/Stop Transmission */
> -#define DMA_CONTROL_SR 0x00000002 /* Start/Stop Receive */
> -#define DMA_CONTROL_DFF 0x01000000 /* Disable flush of rx frames */
> -
> -/* DMA Normal interrupt */
> -#define DMA_INTR_ENA_NIE 0x00010000 /* Normal Summary */
> -#define DMA_INTR_ENA_AIE 0x00008000 /* Abnormal Summary */
> -#define DMA_INTR_ENA_ERE 0x00004000 /* Early Receive */
> -#define DMA_INTR_ENA_FBE 0x00002000 /* Fatal Bus Error */
> -#define DMA_INTR_ENA_ETE 0x00000400 /* Early Transmit */
> -#define DMA_INTR_ENA_RWE 0x00000200 /* Receive Watchdog */
> -#define DMA_INTR_ENA_RSE 0x00000100 /* Receive Stopped */
> -#define DMA_INTR_ENA_RUE 0x00000080 /* Receive Buffer Unavailable */
> -#define DMA_INTR_ENA_RIE 0x00000040 /* Receive Interrupt */
> -#define DMA_INTR_ENA_UNE 0x00000020 /* Tx Underflow */
> -#define DMA_INTR_ENA_OVE 0x00000010 /* Receive Overflow */
> -#define DMA_INTR_ENA_TJE 0x00000008 /* Transmit Jabber */
> -#define DMA_INTR_ENA_TUE 0x00000004 /* Transmit Buffer Unavail */
> -#define DMA_INTR_ENA_TSE 0x00000002 /* Transmit Stopped */
> -#define DMA_INTR_ENA_TIE 0x00000001 /* Transmit Interrupt */
> -
> -#define DMA_INTR_NORMAL (DMA_INTR_ENA_NIE | DMA_INTR_ENA_RIE | \
> - DMA_INTR_ENA_TUE)
> -
> -#define DMA_INTR_ABNORMAL (DMA_INTR_ENA_AIE | DMA_INTR_ENA_FBE | \
> - DMA_INTR_ENA_RWE | DMA_INTR_ENA_RSE | \
> - DMA_INTR_ENA_RUE | DMA_INTR_ENA_UNE | \
> - DMA_INTR_ENA_OVE | DMA_INTR_ENA_TJE | \
> - DMA_INTR_ENA_TSE)
> -
> -/* DMA default interrupt mask */
> -#define DMA_INTR_DEFAULT_MASK (DMA_INTR_NORMAL | DMA_INTR_ABNORMAL)
> -
> -/* DMA Status register defines */
> -#define DMA_STATUS_GMI 0x08000000 /* MMC interrupt */
> -#define DMA_STATUS_GLI 0x04000000 /* GMAC Line interface int */
> -#define DMA_STATUS_EB_MASK 0x00380000 /* Error Bits Mask */
> -#define DMA_STATUS_EB_TX_ABORT 0x00080000 /* Error Bits - TX Abort */
> -#define DMA_STATUS_EB_RX_ABORT 0x00100000 /* Error Bits - RX Abort */
> -#define DMA_STATUS_TS_MASK 0x00700000 /* Transmit Process State */
> -#define DMA_STATUS_TS_SHIFT 20
> -#define DMA_STATUS_RS_MASK 0x000e0000 /* Receive Process State */
> -#define DMA_STATUS_RS_SHIFT 17
> -#define DMA_STATUS_NIS 0x00010000 /* Normal Interrupt Summary */
> -#define DMA_STATUS_AIS 0x00008000 /* Abnormal Interrupt Summary */
> -#define DMA_STATUS_ERI 0x00004000 /* Early Receive Interrupt */
> -#define DMA_STATUS_FBI 0x00002000 /* Fatal Bus Error Interrupt */
> -#define DMA_STATUS_ETI 0x00000400 /* Early Transmit Interrupt */
> -#define DMA_STATUS_RWT 0x00000200 /* Receive Watchdog Timeout */
> -#define DMA_STATUS_RPS 0x00000100 /* Receive Process Stopped */
> -#define DMA_STATUS_RU 0x00000080 /* Receive Buffer Unavailable */
> -#define DMA_STATUS_RI 0x00000040 /* Receive Interrupt */
> -#define DMA_STATUS_UNF 0x00000020 /* Transmit Underflow */
> -#define DMA_STATUS_OVF 0x00000010 /* Receive Overflow */
> -#define DMA_STATUS_TJT 0x00000008 /* Transmit Jabber Timeout */
> -#define DMA_STATUS_TU 0x00000004 /* Transmit Buffer Unavail */
> -#define DMA_STATUS_TPS 0x00000002 /* Transmit Process Stopped */
> -#define DMA_STATUS_TI 0x00000001 /* Transmit Interrupt */
> -
> -/* Common MAC defines */
> -#define MAC_ENABLE_TX 0x00000008 /* Transmitter Enable */
> -#define MAC_ENABLE_RX 0x00000004 /* Receiver Enable */
> -
> -/* XGMAC Operation Mode Register */
> -#define XGMAC_OMR_TSF 0x00200000 /* TX FIFO Store and Forward */
> -#define XGMAC_OMR_FTF 0x00100000 /* Flush Transmit FIFO */
> -#define XGMAC_OMR_TTC 0x00020000 /* Transmit Threshhold Ctrl */
> -#define XGMAC_OMR_TTC_SHIFT 16
> -#define XGMAC_OMR_TTC_MASK 0x00030000
> -#define XGMAC_OMR_RFD 0x00006000 /* FC Deactivation Threshhold */
> -#define XGMAC_OMR_RFD_SHIFT 12
> -#define XGMAC_OMR_RFD_MASK 0x00007000 /* FC Deact Threshhold MASK */
> -#define XGMAC_OMR_RFA 0x00000600 /* FC Activation Threshhold */
> -#define XGMAC_OMR_RFA_SHIFT 9
> -#define XGMAC_OMR_RFA_MASK 0x00000E00 /* FC Act Threshhold MASK */
> -#define XGMAC_OMR_EFC 0x00000100 /* Enable Hardware FC */
> -#define XGMAC_OMR_FEF 0x00000080 /* Forward Error Frames */
> -#define XGMAC_OMR_DT 0x00000040 /* Drop TCP/IP csum Errors */
> -#define XGMAC_OMR_RSF 0x00000020 /* RX FIFO Store and Forward */
> -#define XGMAC_OMR_RTC_256 0x00000018 /* RX Threshhold Ctrl */
> -#define XGMAC_OMR_RTC_MASK 0x00000018 /* RX Threshhold Ctrl MASK */
> -
> -/* XGMAC HW Features Register */
> -#define DMA_HW_FEAT_TXCOESEL 0x00010000 /* TX Checksum offload */
> -
> -#define XGMAC_MMC_CTRL_CNT_FRZ 0x00000008
> -
> -/* XGMAC Descriptor Defines */
> -#define MAX_DESC_BUF_SZ (0x2000 - 8)
> -
> -#define RXDESC_EXT_STATUS 0x00000001
> -#define RXDESC_CRC_ERR 0x00000002
> -#define RXDESC_RX_ERR 0x00000008
> -#define RXDESC_RX_WDOG 0x00000010
> -#define RXDESC_FRAME_TYPE 0x00000020
> -#define RXDESC_GIANT_FRAME 0x00000080
> -#define RXDESC_LAST_SEG 0x00000100
> -#define RXDESC_FIRST_SEG 0x00000200
> -#define RXDESC_VLAN_FRAME 0x00000400
> -#define RXDESC_OVERFLOW_ERR 0x00000800
> -#define RXDESC_LENGTH_ERR 0x00001000
> -#define RXDESC_SA_FILTER_FAIL 0x00002000
> -#define RXDESC_DESCRIPTOR_ERR 0x00004000
> -#define RXDESC_ERROR_SUMMARY 0x00008000
> -#define RXDESC_FRAME_LEN_OFFSET 16
> -#define RXDESC_FRAME_LEN_MASK 0x3fff0000
> -#define RXDESC_DA_FILTER_FAIL 0x40000000
> -
> -#define RXDESC1_END_RING 0x00008000
> -
> -#define RXDESC_IP_PAYLOAD_MASK 0x00000003
> -#define RXDESC_IP_PAYLOAD_UDP 0x00000001
> -#define RXDESC_IP_PAYLOAD_TCP 0x00000002
> -#define RXDESC_IP_PAYLOAD_ICMP 0x00000003
> -#define RXDESC_IP_HEADER_ERR 0x00000008
> -#define RXDESC_IP_PAYLOAD_ERR 0x00000010
> -#define RXDESC_IPV4_PACKET 0x00000040
> -#define RXDESC_IPV6_PACKET 0x00000080
> -#define TXDESC_UNDERFLOW_ERR 0x00000001
> -#define TXDESC_JABBER_TIMEOUT 0x00000002
> -#define TXDESC_LOCAL_FAULT 0x00000004
> -#define TXDESC_REMOTE_FAULT 0x00000008
> -#define TXDESC_VLAN_FRAME 0x00000010
> -#define TXDESC_FRAME_FLUSHED 0x00000020
> -#define TXDESC_IP_HEADER_ERR 0x00000040
> -#define TXDESC_PAYLOAD_CSUM_ERR 0x00000080
> -#define TXDESC_ERROR_SUMMARY 0x00008000
> -#define TXDESC_SA_CTRL_INSERT 0x00040000
> -#define TXDESC_SA_CTRL_REPLACE 0x00080000
> -#define TXDESC_2ND_ADDR_CHAINED 0x00100000
> -#define TXDESC_END_RING 0x00200000
> -#define TXDESC_CSUM_IP 0x00400000
> -#define TXDESC_CSUM_IP_PAYLD 0x00800000
> -#define TXDESC_CSUM_ALL 0x00C00000
> -#define TXDESC_CRC_EN_REPLACE 0x01000000
> -#define TXDESC_CRC_EN_APPEND 0x02000000
> -#define TXDESC_DISABLE_PAD 0x04000000
> -#define TXDESC_FIRST_SEG 0x10000000
> -#define TXDESC_LAST_SEG 0x20000000
> -#define TXDESC_INTERRUPT 0x40000000
> -
> -#define DESC_OWN 0x80000000
> -#define DESC_BUFFER1_SZ_MASK 0x00001fff
> -#define DESC_BUFFER2_SZ_MASK 0x1fff0000
> -#define DESC_BUFFER2_SZ_OFFSET 16
> -
> -struct xgmac_dma_desc {
> - __le32 flags;
> - __le32 buf_size;
> - __le32 buf1_addr; /* Buffer 1 Address Pointer */
> - __le32 buf2_addr; /* Buffer 2 Address Pointer */
> - __le32 ext_status;
> - __le32 res[3];
> -};
> -
> -struct xgmac_priv {
> - struct xgmac_dma_desc *rx_chain;
> - struct xgmac_dma_desc *tx_chain;
> - char *rxbuffer;
> -
> - u32 tx_currdesc;
> - u32 rx_currdesc;
> -
> - void __iomem *base;
> -
> - struct eth_device edev;
> - struct device_d *dev;
> -};
> -
> -/* XGMAC Descriptor Access Helpers */
> -static inline void desc_set_buf_len(struct xgmac_dma_desc *p, u32 buf_sz)
> -{
> - if (buf_sz > MAX_DESC_BUF_SZ)
> - p->buf_size = cpu_to_le32(MAX_DESC_BUF_SZ |
> - (buf_sz - MAX_DESC_BUF_SZ) << DESC_BUFFER2_SZ_OFFSET);
> - else
> - p->buf_size = cpu_to_le32(buf_sz);
> -}
> -
> -static inline int desc_get_buf_len(struct xgmac_dma_desc *p)
> -{
> - u32 len = le32_to_cpu(p->buf_size);
> - return (len & DESC_BUFFER1_SZ_MASK) +
> - ((len & DESC_BUFFER2_SZ_MASK) >> DESC_BUFFER2_SZ_OFFSET);
> -}
> -
> -static inline void desc_init_rx_desc(struct xgmac_dma_desc *p, int ring_size,
> - int buf_sz)
> -{
> - struct xgmac_dma_desc *end = p + ring_size - 1;
> -
> - memset(p, 0, sizeof(*p) * ring_size);
> -
> - for (; p <= end; p++)
> - desc_set_buf_len(p, buf_sz);
> -
> - end->buf_size |= cpu_to_le32(RXDESC1_END_RING);
> -}
> -
> -static inline void desc_init_tx_desc(struct xgmac_dma_desc *p, u32 ring_size)
> -{
> - memset(p, 0, sizeof(*p) * ring_size);
> - p[ring_size - 1].flags = cpu_to_le32(TXDESC_END_RING);
> -}
> -
> -static inline int desc_get_owner(struct xgmac_dma_desc *p)
> -{
> - return le32_to_cpu(p->flags) & DESC_OWN;
> -}
> -
> -static inline void desc_set_rx_owner(struct xgmac_dma_desc *p)
> -{
> - /* Clear all fields and set the owner */
> - p->flags = cpu_to_le32(DESC_OWN);
> -}
> -
> -static inline void desc_set_tx_owner(struct xgmac_dma_desc *p, u32 flags)
> -{
> - u32 tmpflags = le32_to_cpu(p->flags);
> - tmpflags &= TXDESC_END_RING;
> - tmpflags |= flags | DESC_OWN;
> - p->flags = cpu_to_le32(tmpflags);
> -}
> -
> -static inline void *desc_get_buf_addr(struct xgmac_dma_desc *p)
> -{
> - return (void *)le32_to_cpu(p->buf1_addr);
> -}
> -
> -static inline void desc_set_buf_addr(struct xgmac_dma_desc *p,
> - void *paddr, int len)
> -{
> - p->buf1_addr = cpu_to_le32(paddr);
> - if (len > MAX_DESC_BUF_SZ)
> - p->buf2_addr = cpu_to_le32(paddr + MAX_DESC_BUF_SZ);
> -}
> -
> -static inline void desc_set_buf_addr_and_size(struct xgmac_dma_desc *p,
> - void *paddr, int len)
> -{
> - desc_set_buf_len(p, len);
> - desc_set_buf_addr(p, paddr, len);
> -}
> -
> -static inline int desc_get_rx_frame_len(struct xgmac_dma_desc *p)
> -{
> - u32 data = le32_to_cpu(p->flags);
> - u32 len = (data & RXDESC_FRAME_LEN_MASK) >> RXDESC_FRAME_LEN_OFFSET;
> - if (data & RXDESC_FRAME_TYPE)
> - len -= 4;
> -
> - return len;
> -}
> -
> -/*
> - * Initialize a descriptor ring. Calxeda XGMAC is configured to use
> - * advanced descriptors.
> - */
> -
> -static void init_rx_desc(struct xgmac_priv *priv)
> -{
> - struct xgmac_dma_desc *rxdesc = priv->rx_chain;
> - void *rxbuffer = priv->rxbuffer;
> - int i;
> -
> - desc_init_rx_desc(rxdesc, RX_NUM_DESC, ETH_BUF_SZ);
> - writel((ulong)rxdesc, priv->base + XGMAC_DMA_RX_BASE_ADDR);
> -
> - for (i = 0; i < RX_NUM_DESC; i++) {
> - desc_set_buf_addr(rxdesc + i, rxbuffer + (i * ETH_BUF_SZ),
> - ETH_BUF_SZ);
> - desc_set_rx_owner(rxdesc + i);
> - }
> -}
> -
> -static void init_tx_desc(struct xgmac_priv *priv)
> -{
> - desc_init_tx_desc(priv->tx_chain, TX_NUM_DESC);
> - writel((ulong)priv->tx_chain, priv->base + XGMAC_DMA_TX_BASE_ADDR);
> -}
> -
> -static int xgmac_reset(struct eth_device *dev)
> -{
> - struct xgmac_priv *priv = dev->priv;
> - int ret;
> - u32 value;
> -
> - value = readl(priv->base + XGMAC_CONTROL) & XGMAC_CONTROL_SPD_MASK;
> -
> - writel(DMA_BUS_MODE_SFT_RESET, priv->base + XGMAC_DMA_BUS_MODE);
> -
> - ret = wait_on_timeout(100 * MSECOND,
> - !(readl(priv->base + XGMAC_DMA_BUS_MODE) & DMA_BUS_MODE_SFT_RESET));
> -
> - writel(value, priv->base + XGMAC_CONTROL);
> -
> - return ret;
> -}
> -
> -static int xgmac_open(struct eth_device *edev)
> -{
> - struct xgmac_priv *priv = edev->priv;
> - int value;
> - int ret;
> -
> - ret = xgmac_reset(edev);
> - if (ret)
> - return ret;
> -
> - /* set the AXI bus modes */
> - value = DMA_BUS_MODE_ATDS |
> - (16 << DMA_BUS_MODE_PBL_SHIFT) |
> - DMA_BUS_MODE_FB | DMA_BUS_MODE_AAL;
> - writel(value, priv->base + XGMAC_DMA_BUS_MODE);
> -
> - value = DMA_AXIMODE_AAL | DMA_AXIMODE_BLEN16 |
> - DMA_AXIMODE_BLEN8 | DMA_AXIMODE_BLEN4;
> - writel(value, priv->base + XGMAC_DMA_AXI_BUS);
> -
> - /* set flow control parameters and store and forward mode */
> - value = (FIFO_MINUS_12K << XGMAC_OMR_RFD_SHIFT) |
> - (FIFO_MINUS_4K << XGMAC_OMR_RFA_SHIFT) |
> - XGMAC_OMR_EFC | XGMAC_OMR_TSF | XGMAC_OMR_RSF;
> - writel(value, priv->base + XGMAC_OMR);
> -
> - /* enable pause frames */
> - value = (1024 << XGMAC_FLOW_CTRL_PT_SHIFT) |
> - (1 << XGMAC_FLOW_CTRL_PLT_SHIFT) |
> - XGMAC_FLOW_CTRL_UP | XGMAC_FLOW_CTRL_RFE | XGMAC_FLOW_CTRL_TFE;
> - writel(value, priv->base + XGMAC_FLOW_CTRL);
> -
> - /* Initialize the descriptor chains */
> - init_rx_desc(priv);
> - init_tx_desc(priv);
> -
> - /* must set to 0, or when started up will cause issues */
> - priv->tx_currdesc = 0;
> - priv->rx_currdesc = 0;
> -
> - /* set default core values */
> - value = readl(priv->base + XGMAC_CONTROL);
> - value &= XGMAC_CONTROL_SPD_MASK;
> - value |= XGMAC_CONTROL_DDIC | XGMAC_CONTROL_ACS |
> - XGMAC_CONTROL_IPC | XGMAC_CONTROL_CAR;
> -
> - /* Everything is ready enable both mac and DMA */
> - value |= XGMAC_CONTROL_RE | XGMAC_CONTROL_TE;
> - writel(value, priv->base + XGMAC_CONTROL);
> -
> - value = readl(priv->base + XGMAC_DMA_CONTROL);
> - value |= DMA_CONTROL_SR | DMA_CONTROL_ST;
> - writel(value, priv->base + XGMAC_DMA_CONTROL);
> -
> - return 0;
> -}
> -
> -static int xgmac_send(struct eth_device *edev, void *packet, int length)
> -{
> - struct xgmac_priv *priv = edev->priv;
> - u32 currdesc = priv->tx_currdesc;
> - struct xgmac_dma_desc *txdesc = &priv->tx_chain[currdesc];
> - int ret;
> -
> - dma_sync_single_for_device((unsigned long)packet, length, DMA_TO_DEVICE);
> - desc_set_buf_addr_and_size(txdesc, packet, length);
> - desc_set_tx_owner(txdesc, TXDESC_FIRST_SEG |
> - TXDESC_LAST_SEG | TXDESC_CRC_EN_APPEND);
> -
> - /* write poll demand */
> - writel(1, priv->base + XGMAC_DMA_TX_POLL);
> -
> - ret = wait_on_timeout(1 * SECOND, !desc_get_owner(txdesc));
> - dma_sync_single_for_cpu((unsigned long)packet, length, DMA_TO_DEVICE);
> - if (ret) {
> - dev_err(priv->dev, "TX timeout\n");
> - return ret;
> - }
> -
> - priv->tx_currdesc = (currdesc + 1) & (TX_NUM_DESC - 1);
> - return 0;
> -}
> -
> -static int xgmac_recv(struct eth_device *edev)
> -{
> - struct xgmac_priv *priv = edev->priv;
> - u32 currdesc = priv->rx_currdesc;
> - struct xgmac_dma_desc *rxdesc = &priv->rx_chain[currdesc];
> - int length = 0;
> - void *buf_addr;
> -
> - /* check if the host has the desc */
> - if (desc_get_owner(rxdesc))
> - return -1; /* something bad happened */
> -
> - length = desc_get_rx_frame_len(rxdesc);
> - buf_addr = desc_get_buf_addr(rxdesc);
> -
> - dma_sync_single_for_cpu((unsigned long)buf_addr, length, DMA_FROM_DEVICE);
> - net_receive(edev, buf_addr, length);
> - dma_sync_single_for_device((unsigned long)buf_addr, length,
> - DMA_FROM_DEVICE);
> -
> - /* set descriptor back to owned by XGMAC */
> - desc_set_rx_owner(rxdesc);
> - writel(1, priv->base + XGMAC_DMA_RX_POLL);
> -
> - priv->rx_currdesc = (currdesc + 1) & (RX_NUM_DESC - 1);
> -
> - return length;
> -}
> -
> -static void xgmac_halt(struct eth_device *edev)
> -{
> - struct xgmac_priv *priv = edev->priv;
> - int value;
> -
> - /* Disable TX/RX */
> - value = readl(priv->base + XGMAC_CONTROL);
> - value &= ~(XGMAC_CONTROL_RE | XGMAC_CONTROL_TE);
> - writel(value, priv->base + XGMAC_CONTROL);
> -
> - /* Disable DMA */
> - value = readl(priv->base + XGMAC_DMA_CONTROL);
> - value &= ~(DMA_CONTROL_SR | DMA_CONTROL_ST);
> - writel(value, priv->base + XGMAC_DMA_CONTROL);
> -
> - /* must set to 0, or when started up will cause issues */
> - priv->tx_currdesc = 0;
> - priv->rx_currdesc = 0;
> -}
> -
> -static int xgmac_get_ethaddr(struct eth_device *edev, unsigned char *addr)
> -{
> - struct xgmac_priv *priv = edev->priv;
> - u32 hi_addr, lo_addr;
> -
> - /* Read the MAC address from the hardware */
> - hi_addr = readl(priv->base + XGMAC_ADDR_HIGH(0));
> - lo_addr = readl(priv->base + XGMAC_ADDR_LOW(0));
> -
> - /* Extract the MAC address from the high and low words */
> - addr[0] = lo_addr & 0xff;
> - addr[1] = (lo_addr >> 8) & 0xff;
> - addr[2] = (lo_addr >> 16) & 0xff;
> - addr[3] = (lo_addr >> 24) & 0xff;
> - addr[4] = hi_addr & 0xff;
> - addr[5] = (hi_addr >> 8) & 0xff;
> -
> - return 0;
> -}
> -
> -static int xgmac_set_ethaddr(struct eth_device *dev, const unsigned char *addr)
> -{
> - struct xgmac_priv *priv = dev->priv;
> - u32 data;
> -
> - data = (addr[5] << 8) | addr[4];
> - writel(data, priv->base + XGMAC_ADDR_HIGH(0));
> - data = (addr[3] << 24) | (addr[2] << 16) | (addr[1] << 8) | addr[0];
> - writel(data, priv->base + XGMAC_ADDR_LOW(0));
> -
> - return 0;
> -}
> -
> -static int hb_xgmac_probe(struct device_d *dev)
> -{
> - struct resource *iores;
> - struct eth_device *edev;
> - struct xgmac_priv *priv;
> - void __iomem *base;
> -
> - iores = dev_request_mem_resource(dev, 0);
> - if (IS_ERR(iores))
> - return PTR_ERR(iores);
> - base = IOMEM(iores->start);
> -
> - /* check hardware version */
> - if (readl(base + XGMAC_VERSION) != 0x1012)
> - return -EINVAL;
> -
> - priv = xzalloc(sizeof(*priv));
> -
> - priv->dev = dev;
> - priv->base = base;
> -
> - priv->rxbuffer = dma_alloc_coherent(RX_BUF_SZ, DMA_ADDRESS_BROKEN);
> - priv->rx_chain = dma_alloc_coherent(RX_NUM_DESC * sizeof(struct xgmac_dma_desc),
> - DMA_ADDRESS_BROKEN);
> - priv->tx_chain = dma_alloc_coherent(TX_NUM_DESC * sizeof(struct xgmac_dma_desc),
> - DMA_ADDRESS_BROKEN);
> -
> - edev = &priv->edev;
> - edev->priv = priv;
> -
> - edev->open = xgmac_open;
> - edev->send = xgmac_send;
> - edev->recv = xgmac_recv;
> - edev->halt = xgmac_halt;
> - edev->get_ethaddr = xgmac_get_ethaddr;
> - edev->set_ethaddr = xgmac_set_ethaddr;
> - edev->parent = dev;
> -
> - eth_register(edev);
> -
> - return 0;
> -}
> -
> -static __maybe_unused struct of_device_id xgmac_dt_ids[] = {
> - {
> - .compatible = "calxeda,hb-xgmac",
> - }, {
> - /* sentinel */
> - }
> -};
> -
> -static struct driver_d hb_xgmac_driver = {
> - .name = "hb-xgmac",
> - .probe = hb_xgmac_probe,
> - .of_compatible = DRV_OF_COMPAT(xgmac_dt_ids),
> -};
> -device_platform_driver(hb_xgmac_driver);
>
--
Pengutronix e.K. | |
Steuerwalder Str. 21 | http://www.pengutronix.de/ |
31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
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