diff options
Diffstat (limited to 'drivers/net/ethernet/cortina/gemini.h')
| -rw-r--r-- | drivers/net/ethernet/cortina/gemini.h | 958 |
1 files changed, 958 insertions, 0 deletions
diff --git a/drivers/net/ethernet/cortina/gemini.h b/drivers/net/ethernet/cortina/gemini.h new file mode 100644 index 000000000000..0b12f89bf89a --- /dev/null +++ b/drivers/net/ethernet/cortina/gemini.h @@ -0,0 +1,958 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Register definitions for Gemini GMAC Ethernet device driver + * + * Copyright (C) 2006 Storlink, Corp. + * Copyright (C) 2008-2009 Paulius Zaleckas <paulius.zaleckas@teltonika.lt> + * Copyright (C) 2010 Michał Mirosław <mirq-linux@rere.qmqm.pl> + * Copytight (C) 2017 Linus Walleij <linus.walleij@linaro.org> + */ +#ifndef _GEMINI_ETHERNET_H +#define _GEMINI_ETHERNET_H + +#include <linux/bitops.h> + +/* Base Registers */ +#define TOE_NONTOE_QUE_HDR_BASE 0x2000 +#define TOE_TOE_QUE_HDR_BASE 0x3000 + +/* Queue ID */ +#define TOE_SW_FREE_QID 0x00 +#define TOE_HW_FREE_QID 0x01 +#define TOE_GMAC0_SW_TXQ0_QID 0x02 +#define TOE_GMAC0_SW_TXQ1_QID 0x03 +#define TOE_GMAC0_SW_TXQ2_QID 0x04 +#define TOE_GMAC0_SW_TXQ3_QID 0x05 +#define TOE_GMAC0_SW_TXQ4_QID 0x06 +#define TOE_GMAC0_SW_TXQ5_QID 0x07 +#define TOE_GMAC0_HW_TXQ0_QID 0x08 +#define TOE_GMAC0_HW_TXQ1_QID 0x09 +#define TOE_GMAC0_HW_TXQ2_QID 0x0A +#define TOE_GMAC0_HW_TXQ3_QID 0x0B +#define TOE_GMAC1_SW_TXQ0_QID 0x12 +#define TOE_GMAC1_SW_TXQ1_QID 0x13 +#define TOE_GMAC1_SW_TXQ2_QID 0x14 +#define TOE_GMAC1_SW_TXQ3_QID 0x15 +#define TOE_GMAC1_SW_TXQ4_QID 0x16 +#define TOE_GMAC1_SW_TXQ5_QID 0x17 +#define TOE_GMAC1_HW_TXQ0_QID 0x18 +#define TOE_GMAC1_HW_TXQ1_QID 0x19 +#define TOE_GMAC1_HW_TXQ2_QID 0x1A +#define TOE_GMAC1_HW_TXQ3_QID 0x1B +#define TOE_GMAC0_DEFAULT_QID 0x20 +#define TOE_GMAC1_DEFAULT_QID 0x21 +#define TOE_CLASSIFICATION_QID(x) (0x22 + x) /* 0x22 ~ 0x2F */ +#define TOE_TOE_QID(x) (0x40 + x) /* 0x40 ~ 0x7F */ + +/* TOE DMA Queue Size should be 2^n, n = 6...12 + * TOE DMA Queues are the following queue types: + * SW Free Queue, HW Free Queue, + * GMAC 0/1 SW TX Q0-5, and GMAC 0/1 HW TX Q0-5 + * The base address and descriptor number are configured at + * DMA Queues Descriptor Ring Base Address/Size Register (offset 0x0004) + */ +#define GET_WPTR(addr) readw((addr) + 2) +#define GET_RPTR(addr) readw((addr)) +#define SET_WPTR(addr, data) writew((data), (addr) + 2) +#define SET_RPTR(addr, data) writew((data), (addr)) +#define __RWPTR_NEXT(x, mask) (((unsigned int)(x) + 1) & (mask)) +#define __RWPTR_PREV(x, mask) (((unsigned int)(x) - 1) & (mask)) +#define __RWPTR_DISTANCE(r, w, mask) (((unsigned int)(w) - (r)) & (mask)) +#define __RWPTR_MASK(order) ((1 << (order)) - 1) +#define RWPTR_NEXT(x, order) __RWPTR_NEXT((x), __RWPTR_MASK((order))) +#define RWPTR_PREV(x, order) __RWPTR_PREV((x), __RWPTR_MASK((order))) +#define RWPTR_DISTANCE(r, w, order) __RWPTR_DISTANCE((r), (w), \ + __RWPTR_MASK((order))) + +/* Global registers */ +#define GLOBAL_TOE_VERSION_REG 0x0000 +#define GLOBAL_SW_FREEQ_BASE_SIZE_REG 0x0004 +#define GLOBAL_HW_FREEQ_BASE_SIZE_REG 0x0008 +#define GLOBAL_DMA_SKB_SIZE_REG 0x0010 +#define GLOBAL_SWFQ_RWPTR_REG 0x0014 +#define GLOBAL_HWFQ_RWPTR_REG 0x0018 +#define GLOBAL_INTERRUPT_STATUS_0_REG 0x0020 +#define GLOBAL_INTERRUPT_ENABLE_0_REG 0x0024 +#define GLOBAL_INTERRUPT_SELECT_0_REG 0x0028 +#define GLOBAL_INTERRUPT_STATUS_1_REG 0x0030 +#define GLOBAL_INTERRUPT_ENABLE_1_REG 0x0034 +#define GLOBAL_INTERRUPT_SELECT_1_REG 0x0038 +#define GLOBAL_INTERRUPT_STATUS_2_REG 0x0040 +#define GLOBAL_INTERRUPT_ENABLE_2_REG 0x0044 +#define GLOBAL_INTERRUPT_SELECT_2_REG 0x0048 +#define GLOBAL_INTERRUPT_STATUS_3_REG 0x0050 +#define GLOBAL_INTERRUPT_ENABLE_3_REG 0x0054 +#define GLOBAL_INTERRUPT_SELECT_3_REG 0x0058 +#define GLOBAL_INTERRUPT_STATUS_4_REG 0x0060 +#define GLOBAL_INTERRUPT_ENABLE_4_REG 0x0064 +#define GLOBAL_INTERRUPT_SELECT_4_REG 0x0068 +#define GLOBAL_HASH_TABLE_BASE_REG 0x006C +#define GLOBAL_QUEUE_THRESHOLD_REG 0x0070 + +/* GMAC 0/1 DMA/TOE register */ +#define GMAC_DMA_CTRL_REG 0x0000 +#define GMAC_TX_WEIGHTING_CTRL_0_REG 0x0004 +#define GMAC_TX_WEIGHTING_CTRL_1_REG 0x0008 +#define GMAC_SW_TX_QUEUE0_PTR_REG 0x000C +#define GMAC_SW_TX_QUEUE1_PTR_REG 0x0010 +#define GMAC_SW_TX_QUEUE2_PTR_REG 0x0014 +#define GMAC_SW_TX_QUEUE3_PTR_REG 0x0018 +#define GMAC_SW_TX_QUEUE4_PTR_REG 0x001C +#define GMAC_SW_TX_QUEUE5_PTR_REG 0x0020 +#define GMAC_SW_TX_QUEUE_PTR_REG(i) (GMAC_SW_TX_QUEUE0_PTR_REG + 4 * (i)) +#define GMAC_HW_TX_QUEUE0_PTR_REG 0x0024 +#define GMAC_HW_TX_QUEUE1_PTR_REG 0x0028 +#define GMAC_HW_TX_QUEUE2_PTR_REG 0x002C +#define GMAC_HW_TX_QUEUE3_PTR_REG 0x0030 +#define GMAC_HW_TX_QUEUE_PTR_REG(i) (GMAC_HW_TX_QUEUE0_PTR_REG + 4 * (i)) +#define GMAC_DMA_TX_FIRST_DESC_REG 0x0038 +#define GMAC_DMA_TX_CURR_DESC_REG 0x003C +#define GMAC_DMA_TX_DESC_WORD0_REG 0x0040 +#define GMAC_DMA_TX_DESC_WORD1_REG 0x0044 +#define GMAC_DMA_TX_DESC_WORD2_REG 0x0048 +#define GMAC_DMA_TX_DESC_WORD3_REG 0x004C +#define GMAC_SW_TX_QUEUE_BASE_REG 0x0050 +#define GMAC_HW_TX_QUEUE_BASE_REG 0x0054 +#define GMAC_DMA_RX_FIRST_DESC_REG 0x0058 +#define GMAC_DMA_RX_CURR_DESC_REG 0x005C +#define GMAC_DMA_RX_DESC_WORD0_REG 0x0060 +#define GMAC_DMA_RX_DESC_WORD1_REG 0x0064 +#define GMAC_DMA_RX_DESC_WORD2_REG 0x0068 +#define GMAC_DMA_RX_DESC_WORD3_REG 0x006C +#define GMAC_HASH_ENGINE_REG0 0x0070 +#define GMAC_HASH_ENGINE_REG1 0x0074 +/* matching rule 0 Control register 0 */ +#define GMAC_MR0CR0 0x0078 +#define GMAC_MR0CR1 0x007C +#define GMAC_MR0CR2 0x0080 +#define GMAC_MR1CR0 0x0084 +#define GMAC_MR1CR1 0x0088 +#define GMAC_MR1CR2 0x008C +#define GMAC_MR2CR0 0x0090 +#define GMAC_MR2CR1 0x0094 +#define GMAC_MR2CR2 0x0098 +#define GMAC_MR3CR0 0x009C +#define GMAC_MR3CR1 0x00A0 +#define GMAC_MR3CR2 0x00A4 +/* Support Protocol Register 0 */ +#define GMAC_SPR0 0x00A8 +#define GMAC_SPR1 0x00AC +#define GMAC_SPR2 0x00B0 +#define GMAC_SPR3 0x00B4 +#define GMAC_SPR4 0x00B8 +#define GMAC_SPR5 0x00BC +#define GMAC_SPR6 0x00C0 +#define GMAC_SPR7 0x00C4 +/* GMAC Hash/Rx/Tx AHB Weighting register */ +#define GMAC_AHB_WEIGHT_REG 0x00C8 + +/* TOE GMAC 0/1 register */ +#define GMAC_STA_ADD0 0x0000 +#define GMAC_STA_ADD1 0x0004 +#define GMAC_STA_ADD2 0x0008 +#define GMAC_RX_FLTR 0x000c +#define GMAC_MCAST_FIL0 0x0010 +#define GMAC_MCAST_FIL1 0x0014 +#define GMAC_CONFIG0 0x0018 +#define GMAC_CONFIG1 0x001c +#define GMAC_CONFIG2 0x0020 +#define GMAC_CONFIG3 0x0024 +#define GMAC_RESERVED 0x0028 +#define GMAC_STATUS 0x002c +#define GMAC_IN_DISCARDS 0x0030 +#define GMAC_IN_ERRORS 0x0034 +#define GMAC_IN_MCAST 0x0038 +#define GMAC_IN_BCAST 0x003c +#define GMAC_IN_MAC1 0x0040 /* for STA 1 MAC Address */ +#define GMAC_IN_MAC2 0x0044 /* for STA 2 MAC Address */ + +#define RX_STATS_NUM 6 + +/* DMA Queues description Ring Base Address/Size Register (offset 0x0004) */ +union dma_q_base_size { + unsigned int bits32; + unsigned int base_size; +}; + +#define DMA_Q_BASE_MASK (~0x0f) + +/* DMA SKB Buffer register (offset 0x0008) */ +union dma_skb_size { + unsigned int bits32; + struct bit_0008 { + unsigned int sw_skb_size : 16; /* SW Free poll SKB Size */ + unsigned int hw_skb_size : 16; /* HW Free poll SKB Size */ + } bits; +}; + +/* DMA SW Free Queue Read/Write Pointer Register (offset 0x000c) */ +union dma_rwptr { + unsigned int bits32; + struct bit_000c { + unsigned int rptr : 16; /* Read Ptr, RO */ + unsigned int wptr : 16; /* Write Ptr, RW */ + } bits; +}; + +/* Interrupt Status Register 0 (offset 0x0020) + * Interrupt Mask Register 0 (offset 0x0024) + * Interrupt Select Register 0 (offset 0x0028) + */ +#define GMAC1_TXDERR_INT_BIT BIT(31) +#define GMAC1_TXPERR_INT_BIT BIT(30) +#define GMAC0_TXDERR_INT_BIT BIT(29) +#define GMAC0_TXPERR_INT_BIT BIT(28) +#define GMAC1_RXDERR_INT_BIT BIT(27) +#define GMAC1_RXPERR_INT_BIT BIT(26) +#define GMAC0_RXDERR_INT_BIT BIT(25) +#define GMAC0_RXPERR_INT_BIT BIT(24) +#define GMAC1_SWTQ15_FIN_INT_BIT BIT(23) +#define GMAC1_SWTQ14_FIN_INT_BIT BIT(22) +#define GMAC1_SWTQ13_FIN_INT_BIT BIT(21) +#define GMAC1_SWTQ12_FIN_INT_BIT BIT(20) +#define GMAC1_SWTQ11_FIN_INT_BIT BIT(19) +#define GMAC1_SWTQ10_FIN_INT_BIT BIT(18) +#define GMAC0_SWTQ05_FIN_INT_BIT BIT(17) +#define GMAC0_SWTQ04_FIN_INT_BIT BIT(16) +#define GMAC0_SWTQ03_FIN_INT_BIT BIT(15) +#define GMAC0_SWTQ02_FIN_INT_BIT BIT(14) +#define GMAC0_SWTQ01_FIN_INT_BIT BIT(13) +#define GMAC0_SWTQ00_FIN_INT_BIT BIT(12) +#define GMAC1_SWTQ15_EOF_INT_BIT BIT(11) +#define GMAC1_SWTQ14_EOF_INT_BIT BIT(10) +#define GMAC1_SWTQ13_EOF_INT_BIT BIT(9) +#define GMAC1_SWTQ12_EOF_INT_BIT BIT(8) +#define GMAC1_SWTQ11_EOF_INT_BIT BIT(7) +#define GMAC1_SWTQ10_EOF_INT_BIT BIT(6) +#define GMAC0_SWTQ05_EOF_INT_BIT BIT(5) +#define GMAC0_SWTQ04_EOF_INT_BIT BIT(4) +#define GMAC0_SWTQ03_EOF_INT_BIT BIT(3) +#define GMAC0_SWTQ02_EOF_INT_BIT BIT(2) +#define GMAC0_SWTQ01_EOF_INT_BIT BIT(1) +#define GMAC0_SWTQ00_EOF_INT_BIT BIT(0) + +/* Interrupt Status Register 1 (offset 0x0030) + * Interrupt Mask Register 1 (offset 0x0034) + * Interrupt Select Register 1 (offset 0x0038) + */ +#define TOE_IQ3_FULL_INT_BIT BIT(31) +#define TOE_IQ2_FULL_INT_BIT BIT(30) +#define TOE_IQ1_FULL_INT_BIT BIT(29) +#define TOE_IQ0_FULL_INT_BIT BIT(28) +#define TOE_IQ3_INT_BIT BIT(27) +#define TOE_IQ2_INT_BIT BIT(26) +#define TOE_IQ1_INT_BIT BIT(25) +#define TOE_IQ0_INT_BIT BIT(24) +#define GMAC1_HWTQ13_EOF_INT_BIT BIT(23) +#define GMAC1_HWTQ12_EOF_INT_BIT BIT(22) +#define GMAC1_HWTQ11_EOF_INT_BIT BIT(21) +#define GMAC1_HWTQ10_EOF_INT_BIT BIT(20) +#define GMAC0_HWTQ03_EOF_INT_BIT BIT(19) +#define GMAC0_HWTQ02_EOF_INT_BIT BIT(18) +#define GMAC0_HWTQ01_EOF_INT_BIT BIT(17) +#define GMAC0_HWTQ00_EOF_INT_BIT BIT(16) +#define CLASS_RX_INT_BIT(x) BIT((x + 2)) +#define DEFAULT_Q1_INT_BIT BIT(1) +#define DEFAULT_Q0_INT_BIT BIT(0) + +#define TOE_IQ_INT_BITS (TOE_IQ0_INT_BIT | TOE_IQ1_INT_BIT | \ + TOE_IQ2_INT_BIT | TOE_IQ3_INT_BIT) +#define TOE_IQ_FULL_BITS (TOE_IQ0_FULL_INT_BIT | TOE_IQ1_FULL_INT_BIT | \ + TOE_IQ2_FULL_INT_BIT | TOE_IQ3_FULL_INT_BIT) +#define TOE_IQ_ALL_BITS (TOE_IQ_INT_BITS | TOE_IQ_FULL_BITS) +#define TOE_CLASS_RX_INT_BITS 0xfffc + +/* Interrupt Status Register 2 (offset 0x0040) + * Interrupt Mask Register 2 (offset 0x0044) + * Interrupt Select Register 2 (offset 0x0048) + */ +#define TOE_QL_FULL_INT_BIT(x) BIT(x) + +/* Interrupt Status Register 3 (offset 0x0050) + * Interrupt Mask Register 3 (offset 0x0054) + * Interrupt Select Register 3 (offset 0x0058) + */ +#define TOE_QH_FULL_INT_BIT(x) BIT(x - 32) + +/* Interrupt Status Register 4 (offset 0x0060) + * Interrupt Mask Register 4 (offset 0x0064) + * Interrupt Select Register 4 (offset 0x0068) + */ +#define GMAC1_RESERVED_INT_BIT BIT(31) +#define GMAC1_MIB_INT_BIT BIT(30) +#define GMAC1_RX_PAUSE_ON_INT_BIT BIT(29) +#define GMAC1_TX_PAUSE_ON_INT_BIT BIT(28) +#define GMAC1_RX_PAUSE_OFF_INT_BIT BIT(27) +#define GMAC1_TX_PAUSE_OFF_INT_BIT BIT(26) +#define GMAC1_RX_OVERRUN_INT_BIT BIT(25) +#define GMAC1_STATUS_CHANGE_INT_BIT BIT(24) +#define GMAC0_RESERVED_INT_BIT BIT(23) +#define GMAC0_MIB_INT_BIT BIT(22) +#define GMAC0_RX_PAUSE_ON_INT_BIT BIT(21) +#define GMAC0_TX_PAUSE_ON_INT_BIT BIT(20) +#define GMAC0_RX_PAUSE_OFF_INT_BIT BIT(19) +#define GMAC0_TX_PAUSE_OFF_INT_BIT BIT(18) +#define GMAC0_RX_OVERRUN_INT_BIT BIT(17) +#define GMAC0_STATUS_CHANGE_INT_BIT BIT(16) +#define CLASS_RX_FULL_INT_BIT(x) BIT(x + 2) +#define HWFQ_EMPTY_INT_BIT BIT(1) +#define SWFQ_EMPTY_INT_BIT BIT(0) + +#define GMAC0_INT_BITS (GMAC0_RESERVED_INT_BIT | GMAC0_MIB_INT_BIT | \ + GMAC0_RX_PAUSE_ON_INT_BIT | \ + GMAC0_TX_PAUSE_ON_INT_BIT | \ + GMAC0_RX_PAUSE_OFF_INT_BIT | \ + GMAC0_TX_PAUSE_OFF_INT_BIT | \ + GMAC0_RX_OVERRUN_INT_BIT | \ + GMAC0_STATUS_CHANGE_INT_BIT) +#define GMAC1_INT_BITS (GMAC1_RESERVED_INT_BIT | GMAC1_MIB_INT_BIT | \ + GMAC1_RX_PAUSE_ON_INT_BIT | \ + GMAC1_TX_PAUSE_ON_INT_BIT | \ + GMAC1_RX_PAUSE_OFF_INT_BIT | \ + GMAC1_TX_PAUSE_OFF_INT_BIT | \ + GMAC1_RX_OVERRUN_INT_BIT | \ + GMAC1_STATUS_CHANGE_INT_BIT) + +#define CLASS_RX_FULL_INT_BITS 0xfffc + +/* GLOBAL_QUEUE_THRESHOLD_REG (offset 0x0070) */ +union queue_threshold { + unsigned int bits32; + struct bit_0070_2 { + /* 7:0 Software Free Queue Empty Threshold */ + unsigned int swfq_empty:8; + /* 15:8 Hardware Free Queue Empty Threshold */ + unsigned int hwfq_empty:8; + /* 23:16 */ + unsigned int intrq:8; + /* 31:24 */ + unsigned int toe_class:8; + } bits; +}; + +/* GMAC DMA Control Register + * GMAC0 offset 0x8000 + * GMAC1 offset 0xC000 + */ +union gmac_dma_ctrl { + unsigned int bits32; + struct bit_8000 { + /* bit 1:0 Peripheral Bus Width */ + unsigned int td_bus:2; + /* bit 3:2 TxDMA max burst size for every AHB request */ + unsigned int td_burst_size:2; + /* bit 7:4 TxDMA protection control */ + unsigned int td_prot:4; + /* bit 9:8 Peripheral Bus Width */ + unsigned int rd_bus:2; + /* bit 11:10 DMA max burst size for every AHB request */ + unsigned int rd_burst_size:2; + /* bit 15:12 DMA Protection Control */ + unsigned int rd_prot:4; + /* bit 17:16 */ + unsigned int rd_insert_bytes:2; + /* bit 27:18 */ + unsigned int reserved:10; + /* bit 28 1: Drop, 0: Accept */ + unsigned int drop_small_ack:1; + /* bit 29 Loopback TxDMA to RxDMA */ + unsigned int loopback:1; + /* bit 30 Tx DMA Enable */ + unsigned int td_enable:1; + /* bit 31 Rx DMA Enable */ + unsigned int rd_enable:1; + } bits; +}; + +/* GMAC Tx Weighting Control Register 0 + * GMAC0 offset 0x8004 + * GMAC1 offset 0xC004 + */ +union gmac_tx_wcr0 { + unsigned int bits32; + struct bit_8004 { + /* bit 5:0 HW TX Queue 3 */ + unsigned int hw_tq0:6; + /* bit 11:6 HW TX Queue 2 */ + unsigned int hw_tq1:6; + /* bit 17:12 HW TX Queue 1 */ + unsigned int hw_tq2:6; + /* bit 23:18 HW TX Queue 0 */ + unsigned int hw_tq3:6; + /* bit 31:24 */ + unsigned int reserved:8; + } bits; +}; + +/* GMAC Tx Weighting Control Register 1 + * GMAC0 offset 0x8008 + * GMAC1 offset 0xC008 + */ +union gmac_tx_wcr1 { + unsigned int bits32; + struct bit_8008 { + /* bit 4:0 SW TX Queue 0 */ + unsigned int sw_tq0:5; + /* bit 9:5 SW TX Queue 1 */ + unsigned int sw_tq1:5; + /* bit 14:10 SW TX Queue 2 */ + unsigned int sw_tq2:5; + /* bit 19:15 SW TX Queue 3 */ + unsigned int sw_tq3:5; + /* bit 24:20 SW TX Queue 4 */ + unsigned int sw_tq4:5; + /* bit 29:25 SW TX Queue 5 */ + unsigned int sw_tq5:5; + /* bit 31:30 */ + unsigned int reserved:2; + } bits; +}; + +/* GMAC DMA Tx Description Word 0 Register + * GMAC0 offset 0x8040 + * GMAC1 offset 0xC040 + */ +union gmac_txdesc_0 { + unsigned int bits32; + struct bit_8040 { + /* bit 15:0 Transfer size */ + unsigned int buffer_size:16; + /* bit 21:16 number of descriptors used for the current frame */ + unsigned int desc_count:6; + /* bit 22 Tx Status, 1: Successful 0: Failed */ + unsigned int status_tx_ok:1; + /* bit 28:23 Tx Status, Reserved bits */ + unsigned int status_rvd:6; + /* bit 29 protocol error during processing this descriptor */ + unsigned int perr:1; + /* bit 30 data error during processing this descriptor */ + unsigned int derr:1; + /* bit 31 */ + unsigned int reserved:1; + } bits; +}; + +/* GMAC DMA Tx Description Word 1 Register + * GMAC0 offset 0x8044 + * GMAC1 offset 0xC044 + */ +union gmac_txdesc_1 { + unsigned int bits32; + struct txdesc_word1 { + /* bit 15: 0 Tx Frame Byte Count */ + unsigned int byte_count:16; + /* bit 16 TSS segmentation use MTU setting */ + unsigned int mtu_enable:1; + /* bit 17 IPV4 Header Checksum Enable */ + unsigned int ip_chksum:1; + /* bit 18 IPV6 Tx Enable */ + unsigned int ipv6_enable:1; + /* bit 19 TCP Checksum Enable */ + unsigned int tcp_chksum:1; + /* bit 20 UDP Checksum Enable */ + unsigned int udp_chksum:1; + /* bit 21 Bypass HW offload engine */ + unsigned int bypass_tss:1; + /* bit 22 Don't update IP length field */ + unsigned int ip_fixed_len:1; + /* bit 31:23 Tx Flag, Reserved */ + unsigned int reserved:9; + } bits; +}; + +#define TSS_IP_FIXED_LEN_BIT BIT(22) +#define TSS_BYPASS_BIT BIT(21) +#define TSS_UDP_CHKSUM_BIT BIT(20) +#define TSS_TCP_CHKSUM_BIT BIT(19) +#define TSS_IPV6_ENABLE_BIT BIT(18) +#define TSS_IP_CHKSUM_BIT BIT(17) +#define TSS_MTU_ENABLE_BIT BIT(16) + +#define TSS_CHECKUM_ENABLE \ + (TSS_IP_CHKSUM_BIT | TSS_IPV6_ENABLE_BIT | \ + TSS_TCP_CHKSUM_BIT | TSS_UDP_CHKSUM_BIT) + +/* GMAC DMA Tx Description Word 2 Register + * GMAC0 offset 0x8048 + * GMAC1 offset 0xC048 + */ +union gmac_txdesc_2 { + unsigned int bits32; + unsigned int buf_adr; +}; + +/* GMAC DMA Tx Description Word 3 Register + * GMAC0 offset 0x804C + * GMAC1 offset 0xC04C + */ +union gmac_txdesc_3 { + unsigned int bits32; + struct txdesc_word3 { + /* bit 12: 0 Tx Frame Byte Count */ + unsigned int mtu_size:13; + /* bit 28:13 */ + unsigned int reserved:16; + /* bit 29 End of frame interrupt enable */ + unsigned int eofie:1; + /* bit 31:30 11: only one, 10: first, 01: last, 00: linking */ + unsigned int sof_eof:2; + } bits; +}; + +#define SOF_EOF_BIT_MASK 0x3fffffff +#define SOF_BIT 0x80000000 +#define EOF_BIT 0x40000000 +#define EOFIE_BIT BIT(29) +#define MTU_SIZE_BIT_MASK 0x1fff + +/* GMAC Tx Descriptor */ +struct gmac_txdesc { + union gmac_txdesc_0 word0; + union gmac_txdesc_1 word1; + union gmac_txdesc_2 word2; + union gmac_txdesc_3 word3; +}; + +/* GMAC DMA Rx Description Word 0 Register + * GMAC0 offset 0x8060 + * GMAC1 offset 0xC060 + */ +union gmac_rxdesc_0 { + unsigned int bits32; + struct bit_8060 { + /* bit 15:0 number of descriptors used for the current frame */ + unsigned int buffer_size:16; + /* bit 21:16 number of descriptors used for the current frame */ + unsigned int desc_count:6; + /* bit 24:22 Status of rx frame */ + unsigned int status:4; + /* bit 28:26 Check Sum Status */ + unsigned int chksum_status:3; + /* bit 29 protocol error during processing this descriptor */ + unsigned int perr:1; + /* bit 30 data error during processing this descriptor */ + unsigned int derr:1; + /* bit 31 TOE/CIS Queue Full dropped packet to default queue */ + unsigned int drop:1; + } bits; +}; + +#define GMAC_RXDESC_0_T_derr BIT(30) +#define GMAC_RXDESC_0_T_perr BIT(29) +#define GMAC_RXDESC_0_T_chksum_status(x) BIT(x + 26) +#define GMAC_RXDESC_0_T_status(x) BIT(x + 22) +#define GMAC_RXDESC_0_T_desc_count(x) BIT(x + 16) + +#define RX_CHKSUM_IP_UDP_TCP_OK 0 +#define RX_CHKSUM_IP_OK_ONLY 1 +#define RX_CHKSUM_NONE 2 +#define RX_CHKSUM_IP_ERR_UNKNOWN 4 +#define RX_CHKSUM_IP_ERR 5 +#define RX_CHKSUM_TCP_UDP_ERR 6 +#define RX_CHKSUM_NUM 8 + +#define RX_STATUS_GOOD_FRAME 0 +#define RX_STATUS_TOO_LONG_GOOD_CRC 1 +#define RX_STATUS_RUNT_FRAME 2 +#define RX_STATUS_SFD_NOT_FOUND 3 +#define RX_STATUS_CRC_ERROR 4 +#define RX_STATUS_TOO_LONG_BAD_CRC 5 +#define RX_STATUS_ALIGNMENT_ERROR 6 +#define RX_STATUS_TOO_LONG_BAD_ALIGN 7 +#define RX_STATUS_RX_ERR 8 +#define RX_STATUS_DA_FILTERED 9 +#define RX_STATUS_BUFFER_FULL 10 +#define RX_STATUS_NUM 16 + +#define RX_ERROR_LENGTH(s) \ + ((s) == RX_STATUS_TOO_LONG_GOOD_CRC || \ + (s) == RX_STATUS_TOO_LONG_BAD_CRC || \ + (s) == RX_STATUS_TOO_LONG_BAD_ALIGN) +#define RX_ERROR_OVER(s) \ + ((s) == RX_STATUS_BUFFER_FULL) +#define RX_ERROR_CRC(s) \ + ((s) == RX_STATUS_CRC_ERROR || \ + (s) == RX_STATUS_TOO_LONG_BAD_CRC) +#define RX_ERROR_FRAME(s) \ + ((s) == RX_STATUS_ALIGNMENT_ERROR || \ + (s) == RX_STATUS_TOO_LONG_BAD_ALIGN) +#define RX_ERROR_FIFO(s) \ + (0) + +/* GMAC DMA Rx Description Word 1 Register + * GMAC0 offset 0x8064 + * GMAC1 offset 0xC064 + */ +union gmac_rxdesc_1 { + unsigned int bits32; + struct rxdesc_word1 { + /* bit 15: 0 Rx Frame Byte Count */ + unsigned int byte_count:16; + /* bit 31:16 Software ID */ + unsigned int sw_id:16; + } bits; +}; + +/* GMAC DMA Rx Description Word 2 Register + * GMAC0 offset 0x8068 + * GMAC1 offset 0xC068 + */ +union gmac_rxdesc_2 { + unsigned int bits32; + unsigned int buf_adr; +}; + +#define RX_INSERT_NONE 0 +#define RX_INSERT_1_BYTE 1 +#define RX_INSERT_2_BYTE 2 +#define RX_INSERT_3_BYTE 3 + +/* GMAC DMA Rx Description Word 3 Register + * GMAC0 offset 0x806C + * GMAC1 offset 0xC06C + */ +union gmac_rxdesc_3 { + unsigned int bits32; + struct rxdesc_word3 { + /* bit 7: 0 L3 data offset */ + unsigned int l3_offset:8; + /* bit 15: 8 L4 data offset */ + unsigned int l4_offset:8; + /* bit 23: 16 L7 data offset */ + unsigned int l7_offset:8; + /* bit 24 Duplicated ACK detected */ + unsigned int dup_ack:1; + /* bit 25 abnormal case found */ + unsigned int abnormal:1; + /* bit 26 IPV4 option or IPV6 extension header */ + unsigned int option:1; + /* bit 27 Out of Sequence packet */ + unsigned int out_of_seq:1; + /* bit 28 Control Flag is present */ + unsigned int ctrl_flag:1; + /* bit 29 End of frame interrupt enable */ + unsigned int eofie:1; + /* bit 31:30 11: only one, 10: first, 01: last, 00: linking */ + unsigned int sof_eof:2; + } bits; +}; + +/* GMAC Rx Descriptor, this is simply fitted over the queue registers */ +struct gmac_rxdesc { + union gmac_rxdesc_0 word0; + union gmac_rxdesc_1 word1; + union gmac_rxdesc_2 word2; + union gmac_rxdesc_3 word3; +}; + +/* GMAC Matching Rule Control Register 0 + * GMAC0 offset 0x8078 + * GMAC1 offset 0xC078 + */ +#define MR_L2_BIT BIT(31) +#define MR_L3_BIT BIT(30) +#define MR_L4_BIT BIT(29) +#define MR_L7_BIT BIT(28) +#define MR_PORT_BIT BIT(27) +#define MR_PRIORITY_BIT BIT(26) +#define MR_DA_BIT BIT(23) +#define MR_SA_BIT BIT(22) +#define MR_ETHER_TYPE_BIT BIT(21) +#define MR_VLAN_BIT BIT(20) +#define MR_PPPOE_BIT BIT(19) +#define MR_IP_VER_BIT BIT(15) +#define MR_IP_HDR_LEN_BIT BIT(14) +#define MR_FLOW_LABLE_BIT BIT(13) +#define MR_TOS_TRAFFIC_BIT BIT(12) +#define MR_SPR_BIT(x) BIT(x) +#define MR_SPR_BITS 0xff + +/* GMAC_AHB_WEIGHT registers + * GMAC0 offset 0x80C8 + * GMAC1 offset 0xC0C8 + */ +union gmac_ahb_weight { + unsigned int bits32; + struct bit_80C8 { + /* 4:0 */ + unsigned int hash_weight:5; + /* 9:5 */ + unsigned int rx_weight:5; + /* 14:10 */ + unsigned int tx_weight:5; + /* 19:15 Rx Data Pre Request FIFO Threshold */ + unsigned int pre_req:5; + /* 24:20 DMA TqCtrl to Start tqDV FIFO Threshold */ + unsigned int tq_dv_threshold:5; + /* 31:25 */ + unsigned int reserved:7; + } bits; +}; + +/* GMAC RX FLTR + * GMAC0 Offset 0xA00C + * GMAC1 Offset 0xE00C + */ +union gmac_rx_fltr { + unsigned int bits32; + struct bit1_000c { + /* Enable receive of unicast frames that are sent to STA + * address + */ + unsigned int unicast:1; + /* Enable receive of multicast frames that pass multicast + * filter + */ + unsigned int multicast:1; + /* Enable receive of broadcast frames */ + unsigned int broadcast:1; + /* Enable receive of all frames */ + unsigned int promiscuous:1; + /* Enable receive of all error frames */ + unsigned int error:1; + unsigned int reserved:27; + } bits; +}; + +/* GMAC Configuration 0 + * GMAC0 Offset 0xA018 + * GMAC1 Offset 0xE018 + */ +union gmac_config0 { + unsigned int bits32; + struct bit1_0018 { + /* 0: disable transmit */ + unsigned int dis_tx:1; + /* 1: disable receive */ + unsigned int dis_rx:1; + /* 2: transmit data loopback enable */ + unsigned int loop_back:1; + /* 3: flow control also trigged by Rx queues */ + unsigned int flow_ctrl:1; + /* 4-7: adjust IFG from 96+/-56 */ + unsigned int adj_ifg:4; + /* 8-10 maximum receive frame length allowed */ + unsigned int max_len:3; + /* 11: disable back-off function */ + unsigned int dis_bkoff:1; + /* 12: disable 16 collisions abort function */ + unsigned int dis_col:1; + /* 13: speed up timers in simulation */ + unsigned int sim_test:1; + /* 14: RX flow control enable */ + unsigned int rx_fc_en:1; + /* 15: TX flow control enable */ + unsigned int tx_fc_en:1; + /* 16: RGMII in-band status enable */ + unsigned int rgmii_en:1; + /* 17: IPv4 RX Checksum enable */ + unsigned int ipv4_rx_chksum:1; + /* 18: IPv6 RX Checksum enable */ + unsigned int ipv6_rx_chksum:1; + /* 19: Remove Rx VLAN tag */ + unsigned int rx_tag_remove:1; + /* 20 */ + unsigned int rgmm_edge:1; + /* 21 */ + unsigned int rxc_inv:1; + /* 22 */ + unsigned int ipv6_exthdr_order:1; + /* 23 */ + unsigned int rx_err_detect:1; + /* 24 */ + unsigned int port0_chk_hwq:1; + /* 25 */ + unsigned int port1_chk_hwq:1; + /* 26 */ + unsigned int port0_chk_toeq:1; + /* 27 */ + unsigned int port1_chk_toeq:1; + /* 28 */ + unsigned int port0_chk_classq:1; + /* 29 */ + unsigned int port1_chk_classq:1; + /* 30, 31 */ + unsigned int reserved:2; + } bits; +}; + +#define CONFIG0_TX_RX_DISABLE (BIT(1) | BIT(0)) +#define CONFIG0_RX_CHKSUM (BIT(18) | BIT(17)) +#define CONFIG0_FLOW_RX BIT(14) +#define CONFIG0_FLOW_TX BIT(15) +#define CONFIG0_FLOW_TX_RX (BIT(14) | BIT(15)) +#define CONFIG0_FLOW_CTL (BIT(14) | BIT(15)) + +#define CONFIG0_MAXLEN_SHIFT 8 +#define CONFIG0_MAXLEN_MASK (7 << CONFIG0_MAXLEN_SHIFT) +#define CONFIG0_MAXLEN_1536 0 +#define CONFIG0_MAXLEN_1518 1 +#define CONFIG0_MAXLEN_1522 2 +#define CONFIG0_MAXLEN_1542 3 +#define CONFIG0_MAXLEN_9k 4 /* 9212 */ +#define CONFIG0_MAXLEN_10k 5 /* 10236 */ +#define CONFIG0_MAXLEN_1518__6 6 +#define CONFIG0_MAXLEN_1518__7 7 + +/* GMAC Configuration 1 + * GMAC0 Offset 0xA01C + * GMAC1 Offset 0xE01C + */ +union gmac_config1 { + unsigned int bits32; + struct bit1_001c { + /* Flow control set threshold */ + unsigned int set_threshold:8; + /* Flow control release threshold */ + unsigned int rel_threshold:8; + unsigned int reserved:16; + } bits; +}; + +#define GMAC_FLOWCTRL_SET_MAX 32 +#define GMAC_FLOWCTRL_SET_MIN 0 +#define GMAC_FLOWCTRL_RELEASE_MAX 32 +#define GMAC_FLOWCTRL_RELEASE_MIN 0 + +/* GMAC Configuration 2 + * GMAC0 Offset 0xA020 + * GMAC1 Offset 0xE020 + */ +union gmac_config2 { + unsigned int bits32; + struct bit1_0020 { + /* Flow control set threshold */ + unsigned int set_threshold:16; + /* Flow control release threshold */ + unsigned int rel_threshold:16; + } bits; +}; + +/* GMAC Configuration 3 + * GMAC0 Offset 0xA024 + * GMAC1 Offset 0xE024 + */ +union gmac_config3 { + unsigned int bits32; + struct bit1_0024 { + /* Flow control set threshold */ + unsigned int set_threshold:16; + /* Flow control release threshold */ + unsigned int rel_threshold:16; + } bits; +}; + +/* GMAC STATUS + * GMAC0 Offset 0xA02C + * GMAC1 Offset 0xE02C + */ +union gmac_status { + unsigned int bits32; + struct bit1_002c { + /* Link status */ + unsigned int link:1; + /* Link speed(00->2.5M 01->25M 10->125M) */ + unsigned int speed:2; + /* Duplex mode */ + unsigned int duplex:1; + unsigned int reserved_1:1; + /* PHY interface type */ + unsigned int mii_rmii:2; + unsigned int reserved_2:25; + } bits; +}; + +#define GMAC_SPEED_10 0 +#define GMAC_SPEED_100 1 +#define GMAC_SPEED_1000 2 + +#define GMAC_PHY_MII 0 +#define GMAC_PHY_GMII 1 +#define GMAC_PHY_RGMII_100_10 2 +#define GMAC_PHY_RGMII_1000 3 + +/* Queue Header + * (1) TOE Queue Header + * (2) Non-TOE Queue Header + * (3) Interrupt Queue Header + * + * memory Layout + * TOE Queue Header + * 0x60003000 +---------------------------+ 0x0000 + * | TOE Queue 0 Header | + * | 8 * 4 Bytes | + * +---------------------------+ 0x0020 + * | TOE Queue 1 Header | + * | 8 * 4 Bytes | + * +---------------------------+ 0x0040 + * | ...... | + * | | + * +---------------------------+ + * + * Non TOE Queue Header + * 0x60002000 +---------------------------+ 0x0000 + * | Default Queue 0 Header | + * | 2 * 4 Bytes | + * +---------------------------+ 0x0008 + * | Default Queue 1 Header | + * | 2 * 4 Bytes | + * +---------------------------+ 0x0010 + * | Classification Queue 0 | + * | 2 * 4 Bytes | + * +---------------------------+ + * | Classification Queue 1 | + * | 2 * 4 Bytes | + * +---------------------------+ (n * 8 + 0x10) + * | ... | + * | 2 * 4 Bytes | + * +---------------------------+ (13 * 8 + 0x10) + * | Classification Queue 13 | + * | 2 * 4 Bytes | + * +---------------------------+ 0x80 + * | Interrupt Queue 0 | + * | 2 * 4 Bytes | + * +---------------------------+ + * | Interrupt Queue 1 | + * | 2 * 4 Bytes | + * +---------------------------+ + * | Interrupt Queue 2 | + * | 2 * 4 Bytes | + * +---------------------------+ + * | Interrupt Queue 3 | + * | 2 * 4 Bytes | + * +---------------------------+ + * + */ +#define TOE_QUEUE_HDR_ADDR(n) (TOE_TOE_QUE_HDR_BASE + n * 32) +#define TOE_Q_HDR_AREA_END (TOE_QUEUE_HDR_ADDR(TOE_TOE_QUEUE_MAX + 1)) +#define TOE_DEFAULT_Q_HDR_BASE(x) (TOE_NONTOE_QUE_HDR_BASE + 0x08 * (x)) +#define TOE_CLASS_Q_HDR_BASE (TOE_NONTOE_QUE_HDR_BASE + 0x10) +#define TOE_INTR_Q_HDR_BASE (TOE_NONTOE_QUE_HDR_BASE + 0x80) +#define INTERRUPT_QUEUE_HDR_ADDR(n) (TOE_INTR_Q_HDR_BASE + n * 8) +#define NONTOE_Q_HDR_AREA_END (INTERRUPT_QUEUE_HDR_ADDR(TOE_INTR_QUEUE_MAX + 1)) + +/* NONTOE Queue Header Word 0 */ +union nontoe_qhdr0 { + unsigned int bits32; + unsigned int base_size; +}; + +#define NONTOE_QHDR0_BASE_MASK (~0x0f) + +/* NONTOE Queue Header Word 1 */ +union nontoe_qhdr1 { + unsigned int bits32; + struct bit_nonqhdr1 { + /* bit 15:0 */ + unsigned int rptr:16; + /* bit 31:16 */ + unsigned int wptr:16; + } bits; +}; + +/* Non-TOE Queue Header */ +struct nontoe_qhdr { + union nontoe_qhdr0 word0; + union nontoe_qhdr1 word1; +}; + +#endif /* _GEMINI_ETHERNET_H */ |