Re: [PATCH 2/2] net: ethernet: Add driver for Sunplus SP7021
flat view
From: Denis Kirjanov <hidden>
Date: 2021-11-03 12:05:23
Also in:
linux-devicetree, lkml
11/3/21 2:02 PM, Wells Lu пишет:
quoted hunk ↗ jump to hunk
Add Ethernet driver for Sunplus SP7021. Signed-off-by: Wells Lu <redacted> --- MAINTAINERS | 1 + drivers/net/ethernet/Kconfig | 1 + drivers/net/ethernet/Makefile | 1 + drivers/net/ethernet/sunplus/Kconfig | 20 + drivers/net/ethernet/sunplus/Makefile | 6 + drivers/net/ethernet/sunplus/l2sw_define.h | 221 ++++++++ drivers/net/ethernet/sunplus/l2sw_desc.c | 233 ++++++++ drivers/net/ethernet/sunplus/l2sw_desc.h | 21 + drivers/net/ethernet/sunplus/l2sw_driver.c | 779 +++++++++++++++++++++++++++ drivers/net/ethernet/sunplus/l2sw_driver.h | 23 + drivers/net/ethernet/sunplus/l2sw_hal.c | 422 +++++++++++++++ drivers/net/ethernet/sunplus/l2sw_hal.h | 47 ++ drivers/net/ethernet/sunplus/l2sw_int.c | 326 +++++++++++ drivers/net/ethernet/sunplus/l2sw_int.h | 16 + drivers/net/ethernet/sunplus/l2sw_mac.c | 68 +++ drivers/net/ethernet/sunplus/l2sw_mac.h | 24 + drivers/net/ethernet/sunplus/l2sw_mdio.c | 118 ++++ drivers/net/ethernet/sunplus/l2sw_mdio.h | 19 + drivers/net/ethernet/sunplus/l2sw_register.h | 99 ++++ 19 files changed, 2445 insertions(+) create mode 100644 drivers/net/ethernet/sunplus/Kconfig create mode 100644 drivers/net/ethernet/sunplus/Makefile create mode 100644 drivers/net/ethernet/sunplus/l2sw_define.h create mode 100644 drivers/net/ethernet/sunplus/l2sw_desc.c create mode 100644 drivers/net/ethernet/sunplus/l2sw_desc.h create mode 100644 drivers/net/ethernet/sunplus/l2sw_driver.c create mode 100644 drivers/net/ethernet/sunplus/l2sw_driver.h create mode 100644 drivers/net/ethernet/sunplus/l2sw_hal.c create mode 100644 drivers/net/ethernet/sunplus/l2sw_hal.h create mode 100644 drivers/net/ethernet/sunplus/l2sw_int.c create mode 100644 drivers/net/ethernet/sunplus/l2sw_int.h create mode 100644 drivers/net/ethernet/sunplus/l2sw_mac.c create mode 100644 drivers/net/ethernet/sunplus/l2sw_mac.h create mode 100644 drivers/net/ethernet/sunplus/l2sw_mdio.c create mode 100644 drivers/net/ethernet/sunplus/l2sw_mdio.h create mode 100644 drivers/net/ethernet/sunplus/l2sw_register.hdiff --git a/MAINTAINERS b/MAINTAINERS index 4669c16..ca676ec 100644 --- a/MAINTAINERS +++ b/MAINTAINERS@@ -18006,6 +18006,7 @@ L: netdev@vger.kernel.org S: Maintained W: https://sunplus-tibbo.atlassian.net/wiki/spaces/doc/overview F: Documentation/devicetree/bindings/net/sunplus,sp7021-l2sw.yaml +F: drivers/net/ethernet/sunplus/ SUPERH M: Yoshinori Sato <ysato@users.sourceforge.jp>diff --git a/drivers/net/ethernet/Kconfig b/drivers/net/ethernet/Kconfig index 412ae3e..0084852 100644 --- a/drivers/net/ethernet/Kconfig +++ b/drivers/net/ethernet/Kconfig@@ -176,6 +176,7 @@ source "drivers/net/ethernet/smsc/Kconfig" source "drivers/net/ethernet/socionext/Kconfig" source "drivers/net/ethernet/stmicro/Kconfig" source "drivers/net/ethernet/sun/Kconfig" +source "drivers/net/ethernet/sunplus/Kconfig" source "drivers/net/ethernet/synopsys/Kconfig" source "drivers/net/ethernet/tehuti/Kconfig" source "drivers/net/ethernet/ti/Kconfig"diff --git a/drivers/net/ethernet/Makefile b/drivers/net/ethernet/Makefile index aaa5078..e4ce162 100644 --- a/drivers/net/ethernet/Makefile +++ b/drivers/net/ethernet/Makefile@@ -87,6 +87,7 @@ obj-$(CONFIG_NET_VENDOR_SMSC) += smsc/ obj-$(CONFIG_NET_VENDOR_SOCIONEXT) += socionext/ obj-$(CONFIG_NET_VENDOR_STMICRO) += stmicro/ obj-$(CONFIG_NET_VENDOR_SUN) += sun/ +obj-$(CONFIG_NET_VENDOR_SUNPLUS) += sunplus/ obj-$(CONFIG_NET_VENDOR_TEHUTI) += tehuti/ obj-$(CONFIG_NET_VENDOR_TI) += ti/ obj-$(CONFIG_NET_VENDOR_TOSHIBA) += toshiba/diff --git a/drivers/net/ethernet/sunplus/Kconfig b/drivers/net/ethernet/sunplus/Kconfig new file mode 100644 index 0000000..a9e3a4c --- /dev/null +++ b/drivers/net/ethernet/sunplus/Kconfig@@ -0,0 +1,20 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Sunplus Ethernet device configuration +# + +config NET_VENDOR_SUNPLUS + tristate "Sunplus Dual 10M/100M Ethernet (with L2 switch) devices" + depends on ETHERNET && SOC_SP7021 + select PHYLIB + select PINCTRL_SPPCTL + select COMMON_CLK_SP7021 + select RESET_SUNPLUS + select NVMEM_SUNPLUS_OCOTP + help + If you have Sunplus dual 10M/100M Ethernet (with L2 switch) + devices, say Y. + The network device supports dual 10M/100M Ethernet interfaces, + or one 10/100M Ethernet interface with two LAN ports. + To compile this driver as a module, choose M here. The module + will be called sp_l2sw.diff --git a/drivers/net/ethernet/sunplus/Makefile b/drivers/net/ethernet/sunplus/Makefile new file mode 100644 index 0000000..b401cec --- /dev/null +++ b/drivers/net/ethernet/sunplus/Makefile@@ -0,0 +1,6 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Makefile for the Sunplus network device drivers. +# +obj-$(CONFIG_NET_VENDOR_SUNPLUS) += sp_l2sw.o +sp_l2sw-objs := l2sw_driver.o l2sw_int.o l2sw_hal.o l2sw_desc.o l2sw_mac.o l2sw_mdio.odiff --git a/drivers/net/ethernet/sunplus/l2sw_define.h b/drivers/net/ethernet/sunplus/l2sw_define.h new file mode 100644 index 0000000..c1049c5 --- /dev/null +++ b/drivers/net/ethernet/sunplus/l2sw_define.h@@ -0,0 +1,221 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright Sunplus Technology Co., Ltd. + * All rights reserved. + */ + +#ifndef __L2SW_DEFINE_H__ +#define __L2SW_DEFINE_H__ + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/sched.h> +#include <linux/kernel.h> +#include <linux/slab.h> +#include <linux/errno.h> +#include <linux/types.h> +#include <linux/interrupt.h> +#include <linux/kdev_t.h> +#include <linux/in.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/ip.h> +#include <linux/tcp.h> +#include <linux/skbuff.h> +#include <linux/ethtool.h> +#include <linux/platform_device.h> +#include <linux/phy.h> +#include <linux/mii.h> +#include <linux/if_vlan.h> +#include <linux/io.h> +#include <linux/dma-mapping.h> +#include <linux/of_address.h> +#include <linux/of_mdio.h> + +#undef pr_fmt +#define pr_fmt(fmt) "[L2SW]" fmt + +//define MAC interrupt status bit +#define MAC_INT_DAISY_MODE_CHG BIT(31) +#define MAC_INT_IP_CHKSUM_ERR BIT(23) +#define MAC_INT_WDOG_TIMER1_EXP BIT(22) +#define MAC_INT_WDOG_TIMER0_EXP BIT(21) +#define MAC_INT_INTRUDER_ALERT BIT(20) +#define MAC_INT_PORT_ST_CHG BIT(19) +#define MAC_INT_BC_STORM BIT(18) +#define MAC_INT_MUST_DROP_LAN BIT(17) +#define MAC_INT_GLOBAL_QUE_FULL BIT(16) +#define MAC_INT_TX_SOC_PAUSE_ON BIT(15) +#define MAC_INT_RX_SOC_QUE_FULL BIT(14) +#define MAC_INT_TX_LAN1_QUE_FULL BIT(9) +#define MAC_INT_TX_LAN0_QUE_FULL BIT(8) +#define MAC_INT_RX_L_DESCF BIT(7) +#define MAC_INT_RX_H_DESCF BIT(6) +#define MAC_INT_RX_DONE_L BIT(5) +#define MAC_INT_RX_DONE_H BIT(4) +#define MAC_INT_TX_DONE_L BIT(3) +#define MAC_INT_TX_DONE_H BIT(2) +#define MAC_INT_TX_DES_ERR BIT(1) +#define MAC_INT_RX_DES_ERR BIT(0) + +#define MAC_INT_RX (MAC_INT_RX_DONE_H | MAC_INT_RX_DONE_L | \ + MAC_INT_RX_DES_ERR) +#define MAC_INT_TX (MAC_INT_TX_DONE_L | MAC_INT_TX_DONE_H | \ + MAC_INT_TX_DES_ERR) +#define MAC_INT_MASK_DEF (MAC_INT_DAISY_MODE_CHG | MAC_INT_IP_CHKSUM_ERR | \ + MAC_INT_WDOG_TIMER1_EXP | MAC_INT_WDOG_TIMER0_EXP | \ + MAC_INT_INTRUDER_ALERT | MAC_INT_BC_STORM | \ + MAC_INT_MUST_DROP_LAN | MAC_INT_GLOBAL_QUE_FULL | \ + MAC_INT_TX_SOC_PAUSE_ON | MAC_INT_RX_SOC_QUE_FULL | \ + MAC_INT_TX_LAN1_QUE_FULL | MAC_INT_TX_LAN0_QUE_FULL | \ + MAC_INT_RX_L_DESCF | MAC_INT_RX_H_DESCF) + +/*define port ability*/ +#define PORT_ABILITY_LINK_ST_P1 BIT(25) +#define PORT_ABILITY_LINK_ST_P0 BIT(24) + +/*define PHY command bit*/ +#define PHY_WT_DATA_MASK 0xffff0000 +#define PHY_RD_CMD 0x00004000 +#define PHY_WT_CMD 0x00002000 +#define PHY_REG_MASK 0x00001f00 +#define PHY_ADR_MASK 0x0000001f + +/*define PHY status bit*/ +#define PHY_RD_DATA_MASK 0xffff0000 +#define PHY_RD_RDY BIT(1) +#define PHY_WT_DONE BIT(0) + +/*define other register bit*/ +#define RX_MAX_LEN_MASK 0x00011000 +#define ROUTE_MODE_MASK 0x00000060 +#define POK_INT_THS_MASK 0x000E0000 +#define VLAN_TH_MASK 0x00000007 + +/*define tx descriptor bit*/ +#define OWN_BIT BIT(31) +#define FS_BIT BIT(25) +#define LS_BIT BIT(24) +#define LEN_MASK 0x000007FF +#define PKTSP_MASK 0x00007000 +#define PKTSP_PORT1 0x00001000 +#define TO_VLAN_MASK 0x0003F000 +#define TO_VLAN_GROUP1 0x00002000 + +#define EOR_BIT BIT(31) + +/*define rx descriptor bit*/ +#define ERR_CODE (0xf << 26) +#define RX_TCP_UDP_CHKSUM_BIT BIT(23) +#define RX_IP_CHKSUM_BIT BIT(18) + +#define OWC_BIT BIT(31) +#define TXOK_BIT BIT(26) +#define LNKF_BIT BIT(25) +#define BUR_BIT BIT(22) +#define TWDE_BIT BIT(20) +#define CC_MASK 0x000f0000 +#define TBE_MASK 0x00070000 + +// Address table search +#define MAC_ADDR_LOOKUP_IDLE BIT(2) +#define MAC_SEARCH_NEXT_ADDR BIT(1) +#define MAC_BEGIN_SEARCH_ADDR BIT(0) + +// Address table search +#define MAC_HASK_LOOKUP_ADDR_MASK (0x3ff << 22) +#define MAC_AT_TABLE_END BIT(1) +#define MAC_AT_DATA_READY BIT(0) + +#define MAC_PHY_ADDR 0x01 /* define by hardware */ + +/*config descriptor*/ +#define TX_DESC_NUM 16 +#define MAC_GUARD_DESC_NUM 2 +#define RX_QUEUE0_DESC_NUM 16 +#define RX_QUEUE1_DESC_NUM 16 +#define TX_DESC_QUEUE_NUM 1 +#define RX_DESC_QUEUE_NUM 2 + +#define MAC_TX_BUFF_SIZE 1536 +#define MAC_RX_LEN_MAX 2047 + +#define DESC_ALIGN_BYTE 32 +#define RX_OFFSET 0 +#define TX_OFFSET 0 + +#define ETHERNET_MAC_ADDR_LEN 6 + +struct mac_desc { + u32 cmd1; + u32 cmd2; + u32 addr1; + u32 addr2; +}; + +struct skb_info { + struct sk_buff *skb; + u32 mapping; + u32 len; +}; + +struct l2sw_common { + struct net_device *net_dev; + struct platform_device *pdev; + int dual_nic; + int sa_learning; + + void *desc_base; + dma_addr_t desc_dma; + s32 desc_size; + struct clk *clk; + struct reset_control *rstc; + int irq; + + struct mac_desc *rx_desc[RX_DESC_QUEUE_NUM]; + struct skb_info *rx_skb_info[RX_DESC_QUEUE_NUM]; + u32 rx_pos[RX_DESC_QUEUE_NUM]; + u32 rx_desc_num[RX_DESC_QUEUE_NUM]; + u32 rx_desc_buff_size; + + struct mac_desc *tx_desc; + struct skb_info tx_temp_skb_info[TX_DESC_NUM]; + u32 tx_done_pos; + u32 tx_pos; + u32 tx_desc_full; + + struct mii_bus *mii_bus; + struct phy_device *phy_dev; + + struct napi_struct rx_napi; + struct napi_struct tx_napi; + + spinlock_t rx_lock; // spinlock for accessing rx buffer + spinlock_t tx_lock; // spinlock for accessing tx buffer + spinlock_t ioctl_lock; // spinlock for ioctl operations + struct mutex store_mode; // mutex for dynamic mode change
run checkpatch.pl and fix the errors