83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
298 lines
8.6 KiB
C
298 lines
8.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
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*
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* Intel Platform Controller Hub EG20T (codename Topcliff) GMAC Driver
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* Adapted from linux drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe.h
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*/
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#ifndef _PCH_GBE_H_
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#define _PCH_GBE_H_
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#define PCH_GBE_TIMEOUT (3 * CONFIG_SYS_HZ)
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#define PCH_GBE_DESC_NUM 4
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#define PCH_GBE_ALIGN_SIZE 64
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/*
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* Topcliff GBE MAC supports receiving ethernet frames with normal frame size
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* (64-1518 bytes) as well as up to 10318 bytes, however it does not have a
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* register bit to turn off receiving 'jumbo frame', so we have to allocate
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* our own buffer to store the received frames instead of using U-Boot's own.
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*/
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#define PCH_GBE_RX_FRAME_LEN ROUND(10318, PCH_GBE_ALIGN_SIZE)
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/* Interrupt Status */
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/* Interrupt Status Hold */
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/* Interrupt Enable */
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#define PCH_GBE_INT_RX_DMA_CMPLT 0x00000001
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#define PCH_GBE_INT_RX_VALID 0x00000002
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#define PCH_GBE_INT_RX_FRAME_ERR 0x00000004
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#define PCH_GBE_INT_RX_FIFO_ERR 0x00000008
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#define PCH_GBE_INT_RX_DMA_ERR 0x00000010
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#define PCH_GBE_INT_RX_DSC_EMP 0x00000020
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#define PCH_GBE_INT_TX_CMPLT 0x00000100
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#define PCH_GBE_INT_TX_DMA_CMPLT 0x00000200
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#define PCH_GBE_INT_TX_FIFO_ERR 0x00000400
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#define PCH_GBE_INT_TX_DMA_ERR 0x00000800
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#define PCH_GBE_INT_PAUSE_CMPLT 0x00001000
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#define PCH_GBE_INT_MIIM_CMPLT 0x00010000
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#define PCH_GBE_INT_PHY_INT 0x00100000
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#define PCH_GBE_INT_WOL_DET 0x01000000
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#define PCH_GBE_INT_TCPIP_ERR 0x10000000
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/* Mode */
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#define PCH_GBE_MODE_MII_ETHER 0x00000000
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#define PCH_GBE_MODE_GMII_ETHER 0x80000000
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#define PCH_GBE_MODE_HALF_DUPLEX 0x00000000
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#define PCH_GBE_MODE_FULL_DUPLEX 0x40000000
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#define PCH_GBE_MODE_FR_BST 0x04000000
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/* Reset */
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#define PCH_GBE_ALL_RST 0x80000000
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#define PCH_GBE_TX_RST 0x00008000
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#define PCH_GBE_RX_RST 0x00004000
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/* TCP/IP Accelerator Control */
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#define PCH_GBE_EX_LIST_EN 0x00000008
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#define PCH_GBE_RX_TCPIPACC_OFF 0x00000004
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#define PCH_GBE_TX_TCPIPACC_EN 0x00000002
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#define PCH_GBE_RX_TCPIPACC_EN 0x00000001
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/* MAC RX Enable */
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#define PCH_GBE_MRE_MAC_RX_EN 0x00000001
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/* RX Flow Control */
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#define PCH_GBE_FL_CTRL_EN 0x80000000
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/* RX Mode */
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#define PCH_GBE_ADD_FIL_EN 0x80000000
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#define PCH_GBE_MLT_FIL_EN 0x40000000
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#define PCH_GBE_RH_ALM_EMP_4 0x00000000
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#define PCH_GBE_RH_ALM_EMP_8 0x00004000
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#define PCH_GBE_RH_ALM_EMP_16 0x00008000
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#define PCH_GBE_RH_ALM_EMP_32 0x0000c000
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#define PCH_GBE_RH_ALM_FULL_4 0x00000000
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#define PCH_GBE_RH_ALM_FULL_8 0x00001000
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#define PCH_GBE_RH_ALM_FULL_16 0x00002000
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#define PCH_GBE_RH_ALM_FULL_32 0x00003000
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#define PCH_GBE_RH_RD_TRG_4 0x00000000
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#define PCH_GBE_RH_RD_TRG_8 0x00000200
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#define PCH_GBE_RH_RD_TRG_16 0x00000400
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#define PCH_GBE_RH_RD_TRG_32 0x00000600
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#define PCH_GBE_RH_RD_TRG_64 0x00000800
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#define PCH_GBE_RH_RD_TRG_128 0x00000a00
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#define PCH_GBE_RH_RD_TRG_256 0x00000c00
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#define PCH_GBE_RH_RD_TRG_512 0x00000e00
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/* TX Mode */
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#define PCH_GBE_TM_NO_RTRY 0x80000000
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#define PCH_GBE_TM_LONG_PKT 0x40000000
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#define PCH_GBE_TM_ST_AND_FD 0x20000000
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#define PCH_GBE_TM_SHORT_PKT 0x10000000
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#define PCH_GBE_TM_LTCOL_RETX 0x08000000
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#define PCH_GBE_TM_TH_TX_STRT_4 0x00000000
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#define PCH_GBE_TM_TH_TX_STRT_8 0x00004000
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#define PCH_GBE_TM_TH_TX_STRT_16 0x00008000
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#define PCH_GBE_TM_TH_TX_STRT_32 0x0000c000
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#define PCH_GBE_TM_TH_ALM_EMP_4 0x00000000
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#define PCH_GBE_TM_TH_ALM_EMP_8 0x00000800
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#define PCH_GBE_TM_TH_ALM_EMP_16 0x00001000
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#define PCH_GBE_TM_TH_ALM_EMP_32 0x00001800
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#define PCH_GBE_TM_TH_ALM_EMP_64 0x00002000
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#define PCH_GBE_TM_TH_ALM_EMP_128 0x00002800
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#define PCH_GBE_TM_TH_ALM_EMP_256 0x00003000
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#define PCH_GBE_TM_TH_ALM_EMP_512 0x00003800
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#define PCH_GBE_TM_TH_ALM_FULL_4 0x00000000
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#define PCH_GBE_TM_TH_ALM_FULL_8 0x00000200
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#define PCH_GBE_TM_TH_ALM_FULL_16 0x00000400
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#define PCH_GBE_TM_TH_ALM_FULL_32 0x00000600
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/* MAC Address Mask */
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#define PCH_GBE_BUSY 0x80000000
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/* MIIM */
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#define PCH_GBE_MIIM_OPER_WRITE 0x04000000
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#define PCH_GBE_MIIM_OPER_READ 0x00000000
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#define PCH_GBE_MIIM_OPER_READY 0x04000000
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#define PCH_GBE_MIIM_PHY_ADDR_SHIFT 21
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#define PCH_GBE_MIIM_REG_ADDR_SHIFT 16
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/* RGMII Control */
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#define PCH_GBE_CRS_SEL 0x00000010
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#define PCH_GBE_RGMII_RATE_125M 0x00000000
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#define PCH_GBE_RGMII_RATE_25M 0x00000008
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#define PCH_GBE_RGMII_RATE_2_5M 0x0000000c
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#define PCH_GBE_RGMII_MODE_GMII 0x00000000
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#define PCH_GBE_RGMII_MODE_RGMII 0x00000002
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#define PCH_GBE_CHIP_TYPE_EXTERNAL 0x00000000
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#define PCH_GBE_CHIP_TYPE_INTERNAL 0x00000001
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/* DMA Control */
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#define PCH_GBE_RX_DMA_EN 0x00000002
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#define PCH_GBE_TX_DMA_EN 0x00000001
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/* Receive Descriptor bit definitions */
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#define PCH_GBE_RXD_ACC_STAT_BCAST 0x00000400
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#define PCH_GBE_RXD_ACC_STAT_MCAST 0x00000200
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#define PCH_GBE_RXD_ACC_STAT_UCAST 0x00000100
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#define PCH_GBE_RXD_ACC_STAT_TCPIPOK 0x000000c0
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#define PCH_GBE_RXD_ACC_STAT_IPOK 0x00000080
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#define PCH_GBE_RXD_ACC_STAT_TCPOK 0x00000040
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#define PCH_GBE_RXD_ACC_STAT_IP6ERR 0x00000020
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#define PCH_GBE_RXD_ACC_STAT_OFLIST 0x00000010
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#define PCH_GBE_RXD_ACC_STAT_TYPEIP 0x00000008
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#define PCH_GBE_RXD_ACC_STAT_MACL 0x00000004
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#define PCH_GBE_RXD_ACC_STAT_PPPOE 0x00000002
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#define PCH_GBE_RXD_ACC_STAT_VTAGT 0x00000001
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#define PCH_GBE_RXD_GMAC_STAT_PAUSE 0x0200
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#define PCH_GBE_RXD_GMAC_STAT_MARBR 0x0100
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#define PCH_GBE_RXD_GMAC_STAT_MARMLT 0x0080
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#define PCH_GBE_RXD_GMAC_STAT_MARIND 0x0040
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#define PCH_GBE_RXD_GMAC_STAT_MARNOTMT 0x0020
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#define PCH_GBE_RXD_GMAC_STAT_TLONG 0x0010
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#define PCH_GBE_RXD_GMAC_STAT_TSHRT 0x0008
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#define PCH_GBE_RXD_GMAC_STAT_NOTOCTAL 0x0004
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#define PCH_GBE_RXD_GMAC_STAT_NBLERR 0x0002
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#define PCH_GBE_RXD_GMAC_STAT_CRCERR 0x0001
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/* Transmit Descriptor bit definitions */
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#define PCH_GBE_TXD_CTRL_TCPIP_ACC_OFF 0x0008
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#define PCH_GBE_TXD_CTRL_ITAG 0x0004
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#define PCH_GBE_TXD_CTRL_ICRC 0x0002
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#define PCH_GBE_TXD_CTRL_APAD 0x0001
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#define PCH_GBE_TXD_WORDS_SHIFT 2
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#define PCH_GBE_TXD_GMAC_STAT_CMPLT 0x2000
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#define PCH_GBE_TXD_GMAC_STAT_ABT 0x1000
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#define PCH_GBE_TXD_GMAC_STAT_EXCOL 0x0800
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#define PCH_GBE_TXD_GMAC_STAT_SNGCOL 0x0400
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#define PCH_GBE_TXD_GMAC_STAT_MLTCOL 0x0200
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#define PCH_GBE_TXD_GMAC_STAT_CRSER 0x0100
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#define PCH_GBE_TXD_GMAC_STAT_TLNG 0x0080
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#define PCH_GBE_TXD_GMAC_STAT_TSHRT 0x0040
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#define PCH_GBE_TXD_GMAC_STAT_LTCOL 0x0020
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#define PCH_GBE_TXD_GMAC_STAT_TFUNDFLW 0x0010
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/**
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* struct pch_gbe_rx_desc - Receive Descriptor
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* @buffer_addr: RX Frame Buffer Address
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* @tcp_ip_status: TCP/IP Accelerator Status
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* @rx_words_eob: RX word count and Byte position
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* @gbec_status: GMAC Status
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* @dma_status: DMA Status
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* @reserved1: Reserved
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* @reserved2: Reserved
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*/
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struct pch_gbe_rx_desc {
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u32 buffer_addr;
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u32 tcp_ip_status;
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u16 rx_words_eob;
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u16 gbec_status;
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u8 dma_status;
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u8 reserved1;
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u16 reserved2;
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};
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/**
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* struct pch_gbe_tx_desc - Transmit Descriptor
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* @buffer_addr: TX Frame Buffer Address
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* @length: Data buffer length
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* @reserved1: Reserved
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* @tx_words_eob: TX word count and Byte position
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* @tx_frame_ctrl: TX Frame Control
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* @dma_status: DMA Status
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* @reserved2: Reserved
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* @gbec_status: GMAC Status
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*/
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struct pch_gbe_tx_desc {
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u32 buffer_addr;
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u16 length;
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u16 reserved1;
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u16 tx_words_eob;
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u16 tx_frame_ctrl;
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u8 dma_status;
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u8 reserved2;
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u16 gbec_status;
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};
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/**
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* pch_gbe_regs_mac_adr - structure holding values of mac address registers
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*
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* @high Denotes the 1st to 4th byte from the initial of MAC address
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* @low Denotes the 5th to 6th byte from the initial of MAC address
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*/
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struct pch_gbe_regs_mac_adr {
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u32 high;
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u32 low;
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};
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/**
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* pch_gbe_regs - structure holding values of MAC registers
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*/
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struct pch_gbe_regs {
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u32 int_st;
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u32 int_en;
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u32 mode;
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u32 reset;
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u32 tcpip_acc;
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u32 ex_list;
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u32 int_st_hold;
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u32 phy_int_ctrl;
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u32 mac_rx_en;
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u32 rx_fctrl;
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u32 pause_req;
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u32 rx_mode;
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u32 tx_mode;
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u32 rx_fifo_st;
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u32 tx_fifo_st;
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u32 tx_fid;
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u32 tx_result;
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u32 pause_pkt1;
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u32 pause_pkt2;
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u32 pause_pkt3;
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u32 pause_pkt4;
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u32 pause_pkt5;
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u32 reserve[2];
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struct pch_gbe_regs_mac_adr mac_adr[16];
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u32 addr_mask;
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u32 miim;
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u32 mac_addr_load;
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u32 rgmii_st;
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u32 rgmii_ctrl;
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u32 reserve3[3];
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u32 dma_ctrl;
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u32 reserve4[3];
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u32 rx_dsc_base;
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u32 rx_dsc_size;
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u32 rx_dsc_hw_p;
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u32 rx_dsc_hw_p_hld;
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u32 rx_dsc_sw_p;
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u32 reserve5[3];
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u32 tx_dsc_base;
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u32 tx_dsc_size;
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u32 tx_dsc_hw_p;
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u32 tx_dsc_hw_p_hld;
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u32 tx_dsc_sw_p;
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u32 reserve6[3];
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u32 rx_dma_st;
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u32 tx_dma_st;
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u32 reserve7[2];
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u32 wol_st;
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u32 wol_ctrl;
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u32 wol_addr_mask;
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};
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struct pch_gbe_priv {
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struct pch_gbe_rx_desc rx_desc[PCH_GBE_DESC_NUM];
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struct pch_gbe_tx_desc tx_desc[PCH_GBE_DESC_NUM];
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char rx_buff[PCH_GBE_DESC_NUM][PCH_GBE_RX_FRAME_LEN];
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struct phy_device *phydev;
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struct mii_dev *bus;
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struct pch_gbe_regs *mac_regs;
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struct udevice *dev;
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int rx_idx;
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int tx_idx;
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};
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#endif /* _PCH_GBE_H_ */
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