From 8ee443b8ebb6f533e5f42d8da05600a1996a4dfd Mon Sep 17 00:00:00 2001 From: Bin Meng Date: Fri, 20 Mar 2015 17:12:20 +0800 Subject: net: Add Intel Topcliff GMAC driver Add a new driver for the Gigabit Ethernet MAC found on Intel Topcliff Platform Controller Hub. Tested under 10/100 half/full duplex and 1000 full duplex modes using ping and tftpboot commands. Signed-off-by: Bin Meng Acked-by: Joe Hershberger --- drivers/net/pch_gbe.h | 300 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 300 insertions(+) create mode 100644 drivers/net/pch_gbe.h (limited to 'drivers/net/pch_gbe.h') diff --git a/drivers/net/pch_gbe.h b/drivers/net/pch_gbe.h new file mode 100644 index 0000000..11329d4 --- /dev/null +++ b/drivers/net/pch_gbe.h @@ -0,0 +1,300 @@ +/* + * Copyright (C) 2015, Bin Meng + * + * Intel Platform Controller Hub EG20T (codename Topcliff) GMAC Driver + * Adapted from linux drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe.h + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _PCH_GBE_H_ +#define _PCH_GBE_H_ + +#define PCH_GBE_TIMEOUT (3 * CONFIG_SYS_HZ) + +#define PCH_GBE_DESC_NUM 4 +#define PCH_GBE_ALIGN_SIZE 64 + +/* + * Topcliff GBE MAC supports receiving ethernet frames with normal frame size + * (64-1518 bytes) as well as up to 10318 bytes, however it does not have a + * register bit to turn off receiving 'jumbo frame', so we have to allocate + * our own buffer to store the received frames instead of using U-Boot's own. + */ +#define PCH_GBE_RX_FRAME_LEN ROUND(10318, PCH_GBE_ALIGN_SIZE) + +/* Interrupt Status */ +/* Interrupt Status Hold */ +/* Interrupt Enable */ +#define PCH_GBE_INT_RX_DMA_CMPLT 0x00000001 +#define PCH_GBE_INT_RX_VALID 0x00000002 +#define PCH_GBE_INT_RX_FRAME_ERR 0x00000004 +#define PCH_GBE_INT_RX_FIFO_ERR 0x00000008 +#define PCH_GBE_INT_RX_DMA_ERR 0x00000010 +#define PCH_GBE_INT_RX_DSC_EMP 0x00000020 +#define PCH_GBE_INT_TX_CMPLT 0x00000100 +#define PCH_GBE_INT_TX_DMA_CMPLT 0x00000200 +#define PCH_GBE_INT_TX_FIFO_ERR 0x00000400 +#define PCH_GBE_INT_TX_DMA_ERR 0x00000800 +#define PCH_GBE_INT_PAUSE_CMPLT 0x00001000 +#define PCH_GBE_INT_MIIM_CMPLT 0x00010000 +#define PCH_GBE_INT_PHY_INT 0x00100000 +#define PCH_GBE_INT_WOL_DET 0x01000000 +#define PCH_GBE_INT_TCPIP_ERR 0x10000000 + +/* Mode */ +#define PCH_GBE_MODE_MII_ETHER 0x00000000 +#define PCH_GBE_MODE_GMII_ETHER 0x80000000 +#define PCH_GBE_MODE_HALF_DUPLEX 0x00000000 +#define PCH_GBE_MODE_FULL_DUPLEX 0x40000000 +#define PCH_GBE_MODE_FR_BST 0x04000000 + +/* Reset */ +#define PCH_GBE_ALL_RST 0x80000000 +#define PCH_GBE_TX_RST 0x00008000 +#define PCH_GBE_RX_RST 0x00004000 + +/* TCP/IP Accelerator Control */ +#define PCH_GBE_EX_LIST_EN 0x00000008 +#define PCH_GBE_RX_TCPIPACC_OFF 0x00000004 +#define PCH_GBE_TX_TCPIPACC_EN 0x00000002 +#define PCH_GBE_RX_TCPIPACC_EN 0x00000001 + +/* MAC RX Enable */ +#define PCH_GBE_MRE_MAC_RX_EN 0x00000001 + +/* RX Flow Control */ +#define PCH_GBE_FL_CTRL_EN 0x80000000 + +/* RX Mode */ +#define PCH_GBE_ADD_FIL_EN 0x80000000 +#define PCH_GBE_MLT_FIL_EN 0x40000000 +#define PCH_GBE_RH_ALM_EMP_4 0x00000000 +#define PCH_GBE_RH_ALM_EMP_8 0x00004000 +#define PCH_GBE_RH_ALM_EMP_16 0x00008000 +#define PCH_GBE_RH_ALM_EMP_32 0x0000c000 +#define PCH_GBE_RH_ALM_FULL_4 0x00000000 +#define PCH_GBE_RH_ALM_FULL_8 0x00001000 +#define PCH_GBE_RH_ALM_FULL_16 0x00002000 +#define PCH_GBE_RH_ALM_FULL_32 0x00003000 +#define PCH_GBE_RH_RD_TRG_4 0x00000000 +#define PCH_GBE_RH_RD_TRG_8 0x00000200 +#define PCH_GBE_RH_RD_TRG_16 0x00000400 +#define PCH_GBE_RH_RD_TRG_32 0x00000600 +#define PCH_GBE_RH_RD_TRG_64 0x00000800 +#define PCH_GBE_RH_RD_TRG_128 0x00000a00 +#define PCH_GBE_RH_RD_TRG_256 0x00000c00 +#define PCH_GBE_RH_RD_TRG_512 0x00000e00 + +/* TX Mode */ +#define PCH_GBE_TM_NO_RTRY 0x80000000 +#define PCH_GBE_TM_LONG_PKT 0x40000000 +#define PCH_GBE_TM_ST_AND_FD 0x20000000 +#define PCH_GBE_TM_SHORT_PKT 0x10000000 +#define PCH_GBE_TM_LTCOL_RETX 0x08000000 +#define PCH_GBE_TM_TH_TX_STRT_4 0x00000000 +#define PCH_GBE_TM_TH_TX_STRT_8 0x00004000 +#define PCH_GBE_TM_TH_TX_STRT_16 0x00008000 +#define PCH_GBE_TM_TH_TX_STRT_32 0x0000c000 +#define PCH_GBE_TM_TH_ALM_EMP_4 0x00000000 +#define PCH_GBE_TM_TH_ALM_EMP_8 0x00000800 +#define PCH_GBE_TM_TH_ALM_EMP_16 0x00001000 +#define PCH_GBE_TM_TH_ALM_EMP_32 0x00001800 +#define PCH_GBE_TM_TH_ALM_EMP_64 0x00002000 +#define PCH_GBE_TM_TH_ALM_EMP_128 0x00002800 +#define PCH_GBE_TM_TH_ALM_EMP_256 0x00003000 +#define PCH_GBE_TM_TH_ALM_EMP_512 0x00003800 +#define PCH_GBE_TM_TH_ALM_FULL_4 0x00000000 +#define PCH_GBE_TM_TH_ALM_FULL_8 0x00000200 +#define PCH_GBE_TM_TH_ALM_FULL_16 0x00000400 +#define PCH_GBE_TM_TH_ALM_FULL_32 0x00000600 + +/* MAC Address Mask */ +#define PCH_GBE_BUSY 0x80000000 + +/* MIIM */ +#define PCH_GBE_MIIM_OPER_WRITE 0x04000000 +#define PCH_GBE_MIIM_OPER_READ 0x00000000 +#define PCH_GBE_MIIM_OPER_READY 0x04000000 +#define PCH_GBE_MIIM_PHY_ADDR_SHIFT 21 +#define PCH_GBE_MIIM_REG_ADDR_SHIFT 16 + +/* RGMII Control */ +#define PCH_GBE_CRS_SEL 0x00000010 +#define PCH_GBE_RGMII_RATE_125M 0x00000000 +#define PCH_GBE_RGMII_RATE_25M 0x00000008 +#define PCH_GBE_RGMII_RATE_2_5M 0x0000000c +#define PCH_GBE_RGMII_MODE_GMII 0x00000000 +#define PCH_GBE_RGMII_MODE_RGMII 0x00000002 +#define PCH_GBE_CHIP_TYPE_EXTERNAL 0x00000000 +#define PCH_GBE_CHIP_TYPE_INTERNAL 0x00000001 + +/* DMA Control */ +#define PCH_GBE_RX_DMA_EN 0x00000002 +#define PCH_GBE_TX_DMA_EN 0x00000001 + +/* Receive Descriptor bit definitions */ +#define PCH_GBE_RXD_ACC_STAT_BCAST 0x00000400 +#define PCH_GBE_RXD_ACC_STAT_MCAST 0x00000200 +#define PCH_GBE_RXD_ACC_STAT_UCAST 0x00000100 +#define PCH_GBE_RXD_ACC_STAT_TCPIPOK 0x000000c0 +#define PCH_GBE_RXD_ACC_STAT_IPOK 0x00000080 +#define PCH_GBE_RXD_ACC_STAT_TCPOK 0x00000040 +#define PCH_GBE_RXD_ACC_STAT_IP6ERR 0x00000020 +#define PCH_GBE_RXD_ACC_STAT_OFLIST 0x00000010 +#define PCH_GBE_RXD_ACC_STAT_TYPEIP 0x00000008 +#define PCH_GBE_RXD_ACC_STAT_MACL 0x00000004 +#define PCH_GBE_RXD_ACC_STAT_PPPOE 0x00000002 +#define PCH_GBE_RXD_ACC_STAT_VTAGT 0x00000001 +#define PCH_GBE_RXD_GMAC_STAT_PAUSE 0x0200 +#define PCH_GBE_RXD_GMAC_STAT_MARBR 0x0100 +#define PCH_GBE_RXD_GMAC_STAT_MARMLT 0x0080 +#define PCH_GBE_RXD_GMAC_STAT_MARIND 0x0040 +#define PCH_GBE_RXD_GMAC_STAT_MARNOTMT 0x0020 +#define PCH_GBE_RXD_GMAC_STAT_TLONG 0x0010 +#define PCH_GBE_RXD_GMAC_STAT_TSHRT 0x0008 +#define PCH_GBE_RXD_GMAC_STAT_NOTOCTAL 0x0004 +#define PCH_GBE_RXD_GMAC_STAT_NBLERR 0x0002 +#define PCH_GBE_RXD_GMAC_STAT_CRCERR 0x0001 + +/* Transmit Descriptor bit definitions */ +#define PCH_GBE_TXD_CTRL_TCPIP_ACC_OFF 0x0008 +#define PCH_GBE_TXD_CTRL_ITAG 0x0004 +#define PCH_GBE_TXD_CTRL_ICRC 0x0002 +#define PCH_GBE_TXD_CTRL_APAD 0x0001 +#define PCH_GBE_TXD_WORDS_SHIFT 2 +#define PCH_GBE_TXD_GMAC_STAT_CMPLT 0x2000 +#define PCH_GBE_TXD_GMAC_STAT_ABT 0x1000 +#define PCH_GBE_TXD_GMAC_STAT_EXCOL 0x0800 +#define PCH_GBE_TXD_GMAC_STAT_SNGCOL 0x0400 +#define PCH_GBE_TXD_GMAC_STAT_MLTCOL 0x0200 +#define PCH_GBE_TXD_GMAC_STAT_CRSER 0x0100 +#define PCH_GBE_TXD_GMAC_STAT_TLNG 0x0080 +#define PCH_GBE_TXD_GMAC_STAT_TSHRT 0x0040 +#define PCH_GBE_TXD_GMAC_STAT_LTCOL 0x0020 +#define PCH_GBE_TXD_GMAC_STAT_TFUNDFLW 0x0010 + +/** + * struct pch_gbe_rx_desc - Receive Descriptor + * @buffer_addr: RX Frame Buffer Address + * @tcp_ip_status: TCP/IP Accelerator Status + * @rx_words_eob: RX word count and Byte position + * @gbec_status: GMAC Status + * @dma_status: DMA Status + * @reserved1: Reserved + * @reserved2: Reserved + */ +struct pch_gbe_rx_desc { + u32 buffer_addr; + u32 tcp_ip_status; + u16 rx_words_eob; + u16 gbec_status; + u8 dma_status; + u8 reserved1; + u16 reserved2; +}; + +/** + * struct pch_gbe_tx_desc - Transmit Descriptor + * @buffer_addr: TX Frame Buffer Address + * @length: Data buffer length + * @reserved1: Reserved + * @tx_words_eob: TX word count and Byte position + * @tx_frame_ctrl: TX Frame Control + * @dma_status: DMA Status + * @reserved2: Reserved + * @gbec_status: GMAC Status + */ +struct pch_gbe_tx_desc { + u32 buffer_addr; + u16 length; + u16 reserved1; + u16 tx_words_eob; + u16 tx_frame_ctrl; + u8 dma_status; + u8 reserved2; + u16 gbec_status; +}; + +/** + * pch_gbe_regs_mac_adr - structure holding values of mac address registers + * + * @high Denotes the 1st to 4th byte from the initial of MAC address + * @low Denotes the 5th to 6th byte from the initial of MAC address + */ +struct pch_gbe_regs_mac_adr { + u32 high; + u32 low; +}; + +/** + * pch_gbe_regs - structure holding values of MAC registers + */ +struct pch_gbe_regs { + u32 int_st; + u32 int_en; + u32 mode; + u32 reset; + u32 tcpip_acc; + u32 ex_list; + u32 int_st_hold; + u32 phy_int_ctrl; + u32 mac_rx_en; + u32 rx_fctrl; + u32 pause_req; + u32 rx_mode; + u32 tx_mode; + u32 rx_fifo_st; + u32 tx_fifo_st; + u32 tx_fid; + u32 tx_result; + u32 pause_pkt1; + u32 pause_pkt2; + u32 pause_pkt3; + u32 pause_pkt4; + u32 pause_pkt5; + u32 reserve[2]; + struct pch_gbe_regs_mac_adr mac_adr[16]; + u32 addr_mask; + u32 miim; + u32 mac_addr_load; + u32 rgmii_st; + u32 rgmii_ctrl; + u32 reserve3[3]; + u32 dma_ctrl; + u32 reserve4[3]; + u32 rx_dsc_base; + u32 rx_dsc_size; + u32 rx_dsc_hw_p; + u32 rx_dsc_hw_p_hld; + u32 rx_dsc_sw_p; + u32 reserve5[3]; + u32 tx_dsc_base; + u32 tx_dsc_size; + u32 tx_dsc_hw_p; + u32 tx_dsc_hw_p_hld; + u32 tx_dsc_sw_p; + u32 reserve6[3]; + u32 rx_dma_st; + u32 tx_dma_st; + u32 reserve7[2]; + u32 wol_st; + u32 wol_ctrl; + u32 wol_addr_mask; +}; + +struct pch_gbe_priv { + struct pch_gbe_rx_desc rx_desc[PCH_GBE_DESC_NUM]; + struct pch_gbe_tx_desc tx_desc[PCH_GBE_DESC_NUM]; + char rx_buff[PCH_GBE_DESC_NUM][PCH_GBE_RX_FRAME_LEN]; + struct eth_device *dev; + struct phy_device *phydev; + struct mii_dev *bus; + struct pch_gbe_regs *mac_regs; + pci_dev_t bdf; + u32 interface; + int rx_idx; + int tx_idx; +}; + +#endif /* _PCH_GBE_H_ */ -- cgit v1.1