1 /* 2 * Copyright (C) Freescale Semiconductor, Inc. 2006. 3 * Author: Jason Jin<Jason.jin@freescale.com> 4 * Zhang Wei<wei.zhang@freescale.com> 5 * 6 * SPDX-License-Identifier: GPL-2.0+ 7 */ 8 #ifndef _AHCI_H_ 9 #define _AHCI_H_ 10 11 #include <pci.h> 12 13 #define AHCI_PCI_BAR 0x24 14 #define AHCI_MAX_SG 56 /* hardware max is 64K */ 15 #define AHCI_CMD_SLOT_SZ 32 16 #define AHCI_MAX_CMD_SLOT 32 17 #define AHCI_RX_FIS_SZ 256 18 #define AHCI_CMD_TBL_HDR 0x80 19 #define AHCI_CMD_TBL_CDB 0x40 20 #define AHCI_CMD_TBL_SZ AHCI_CMD_TBL_HDR + (AHCI_MAX_SG * 16) 21 #define AHCI_PORT_PRIV_DMA_SZ (AHCI_CMD_SLOT_SZ * AHCI_MAX_CMD_SLOT + \ 22 AHCI_CMD_TBL_SZ + AHCI_RX_FIS_SZ) 23 #define AHCI_CMD_ATAPI (1 << 5) 24 #define AHCI_CMD_WRITE (1 << 6) 25 #define AHCI_CMD_PREFETCH (1 << 7) 26 #define AHCI_CMD_RESET (1 << 8) 27 #define AHCI_CMD_CLR_BUSY (1 << 10) 28 29 #define RX_FIS_D2H_REG 0x40 /* offset of D2H Register FIS data */ 30 31 /* Global controller registers */ 32 #define HOST_CAP 0x00 /* host capabilities */ 33 #define HOST_CTL 0x04 /* global host control */ 34 #define HOST_IRQ_STAT 0x08 /* interrupt status */ 35 #define HOST_PORTS_IMPL 0x0c /* bitmap of implemented ports */ 36 #define HOST_VERSION 0x10 /* AHCI spec. version compliancy */ 37 #define HOST_CAP2 0x24 /* host capabilities, extended */ 38 39 /* HOST_CTL bits */ 40 #define HOST_RESET (1 << 0) /* reset controller; self-clear */ 41 #define HOST_IRQ_EN (1 << 1) /* global IRQ enable */ 42 #define HOST_AHCI_EN (1 << 31) /* AHCI enabled */ 43 44 /* Registers for each SATA port */ 45 #define PORT_LST_ADDR 0x00 /* command list DMA addr */ 46 #define PORT_LST_ADDR_HI 0x04 /* command list DMA addr hi */ 47 #define PORT_FIS_ADDR 0x08 /* FIS rx buf addr */ 48 #define PORT_FIS_ADDR_HI 0x0c /* FIS rx buf addr hi */ 49 #define PORT_IRQ_STAT 0x10 /* interrupt status */ 50 #define PORT_IRQ_MASK 0x14 /* interrupt enable/disable mask */ 51 #define PORT_CMD 0x18 /* port command */ 52 #define PORT_TFDATA 0x20 /* taskfile data */ 53 #define PORT_SIG 0x24 /* device TF signature */ 54 #define PORT_CMD_ISSUE 0x38 /* command issue */ 55 #define PORT_SCR 0x28 /* SATA phy register block */ 56 #define PORT_SCR_STAT 0x28 /* SATA phy register: SStatus */ 57 #define PORT_SCR_CTL 0x2c /* SATA phy register: SControl */ 58 #define PORT_SCR_ERR 0x30 /* SATA phy register: SError */ 59 #define PORT_SCR_ACT 0x34 /* SATA phy register: SActive */ 60 61 #ifdef CONFIG_SUNXI_AHCI 62 #define PORT_P0DMACR 0x70 /* SUNXI specific "DMA register" */ 63 #endif 64 65 /* PORT_IRQ_{STAT,MASK} bits */ 66 #define PORT_IRQ_COLD_PRES (1 << 31) /* cold presence detect */ 67 #define PORT_IRQ_TF_ERR (1 << 30) /* task file error */ 68 #define PORT_IRQ_HBUS_ERR (1 << 29) /* host bus fatal error */ 69 #define PORT_IRQ_HBUS_DATA_ERR (1 << 28) /* host bus data error */ 70 #define PORT_IRQ_IF_ERR (1 << 27) /* interface fatal error */ 71 #define PORT_IRQ_IF_NONFATAL (1 << 26) /* interface non-fatal error */ 72 #define PORT_IRQ_OVERFLOW (1 << 24) /* xfer exhausted available S/G */ 73 #define PORT_IRQ_BAD_PMP (1 << 23) /* incorrect port multiplier */ 74 75 #define PORT_IRQ_PHYRDY (1 << 22) /* PhyRdy changed */ 76 #define PORT_IRQ_DEV_ILCK (1 << 7) /* device interlock */ 77 #define PORT_IRQ_CONNECT (1 << 6) /* port connect change status */ 78 #define PORT_IRQ_SG_DONE (1 << 5) /* descriptor processed */ 79 #define PORT_IRQ_UNK_FIS (1 << 4) /* unknown FIS rx'd */ 80 #define PORT_IRQ_SDB_FIS (1 << 3) /* Set Device Bits FIS rx'd */ 81 #define PORT_IRQ_DMAS_FIS (1 << 2) /* DMA Setup FIS rx'd */ 82 #define PORT_IRQ_PIOS_FIS (1 << 1) /* PIO Setup FIS rx'd */ 83 #define PORT_IRQ_D2H_REG_FIS (1 << 0) /* D2H Register FIS rx'd */ 84 85 #define PORT_IRQ_FATAL PORT_IRQ_TF_ERR | PORT_IRQ_HBUS_ERR \ 86 | PORT_IRQ_HBUS_DATA_ERR | PORT_IRQ_IF_ERR 87 88 #define DEF_PORT_IRQ PORT_IRQ_FATAL | PORT_IRQ_PHYRDY \ 89 | PORT_IRQ_CONNECT | PORT_IRQ_SG_DONE \ 90 | PORT_IRQ_UNK_FIS | PORT_IRQ_SDB_FIS \ 91 | PORT_IRQ_DMAS_FIS | PORT_IRQ_PIOS_FIS \ 92 | PORT_IRQ_D2H_REG_FIS 93 94 /* PORT_SCR_STAT bits */ 95 #define PORT_SCR_STAT_DET_MASK 0x3 96 #define PORT_SCR_STAT_DET_COMINIT 0x1 97 #define PORT_SCR_STAT_DET_PHYRDY 0x3 98 99 /* PORT_CMD bits */ 100 #define PORT_CMD_ATAPI (1 << 24) /* Device is ATAPI */ 101 #define PORT_CMD_LIST_ON (1 << 15) /* cmd list DMA engine running */ 102 #define PORT_CMD_FIS_ON (1 << 14) /* FIS DMA engine running */ 103 #define PORT_CMD_FIS_RX (1 << 4) /* Enable FIS receive DMA engine */ 104 #define PORT_CMD_CLO (1 << 3) /* Command list override */ 105 #define PORT_CMD_POWER_ON (1 << 2) /* Power up device */ 106 #define PORT_CMD_SPIN_UP (1 << 1) /* Spin up device */ 107 #define PORT_CMD_START (1 << 0) /* Enable port DMA engine */ 108 109 #define PORT_CMD_ICC_ACTIVE (0x1 << 28) /* Put i/f in active state */ 110 #define PORT_CMD_ICC_PARTIAL (0x2 << 28) /* Put i/f in partial state */ 111 #define PORT_CMD_ICC_SLUMBER (0x6 << 28) /* Put i/f in slumber state */ 112 113 #define AHCI_MAX_PORTS 32 114 115 #define ATA_FLAG_SATA (1 << 3) 116 #define ATA_FLAG_NO_LEGACY (1 << 4) /* no legacy mode check */ 117 #define ATA_FLAG_MMIO (1 << 6) /* use MMIO, not PIO */ 118 #define ATA_FLAG_SATA_RESET (1 << 7) /* (obsolete) use COMRESET */ 119 #define ATA_FLAG_PIO_DMA (1 << 8) /* PIO cmds via DMA */ 120 #define ATA_FLAG_NO_ATAPI (1 << 11) /* No ATAPI support */ 121 122 struct ahci_cmd_hdr { 123 u32 opts; 124 u32 status; 125 u32 tbl_addr; 126 u32 tbl_addr_hi; 127 u32 reserved[4]; 128 }; 129 130 struct ahci_sg { 131 u32 addr; 132 u32 addr_hi; 133 u32 reserved; 134 u32 flags_size; 135 }; 136 137 struct ahci_ioports { 138 u32 cmd_addr; 139 u32 scr_addr; 140 u32 port_mmio; 141 struct ahci_cmd_hdr *cmd_slot; 142 struct ahci_sg *cmd_tbl_sg; 143 u32 cmd_tbl; 144 u32 rx_fis; 145 }; 146 147 struct ahci_probe_ent { 148 pci_dev_t dev; 149 struct ahci_ioports port[AHCI_MAX_PORTS]; 150 u32 n_ports; 151 u32 hard_port_no; 152 u32 host_flags; 153 u32 host_set_flags; 154 void __iomem *mmio_base; 155 u32 pio_mask; 156 u32 udma_mask; 157 u32 flags; 158 u32 cap; /* cache of HOST_CAP register */ 159 u32 port_map; /* cache of HOST_PORTS_IMPL reg */ 160 u32 link_port_map; /*linkup port map*/ 161 }; 162 163 int ahci_init(void __iomem *base); 164 int ahci_reset(void __iomem *base); 165 166 #endif 167