/* * Copyright (C) Freescale Semiconductor, Inc. 2006. * Author: Jason Jin<Jason.jin@freescale.com> * Zhang Wei<wei.zhang@freescale.com> * * See file CREDITS for list of people who contributed to this * project. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA * */ #ifndef _AHCI_H_ #define _AHCI_H_ #include <pci.h> #define AHCI_PCI_BAR 0x24 #define AHCI_MAX_SG 56 /* hardware max is 64K */ #define AHCI_CMD_SLOT_SZ 32 #define AHCI_MAX_CMD_SLOT 32 #define AHCI_RX_FIS_SZ 256 #define AHCI_CMD_TBL_HDR 0x80 #define AHCI_CMD_TBL_CDB 0x40 #define AHCI_CMD_TBL_SZ AHCI_CMD_TBL_HDR + (AHCI_MAX_SG * 16) #define AHCI_PORT_PRIV_DMA_SZ (AHCI_CMD_SLOT_SZ * AHCI_MAX_CMD_SLOT + \ AHCI_CMD_TBL_SZ + AHCI_RX_FIS_SZ) #define AHCI_CMD_ATAPI (1 << 5) #define AHCI_CMD_WRITE (1 << 6) #define AHCI_CMD_PREFETCH (1 << 7) #define AHCI_CMD_RESET (1 << 8) #define AHCI_CMD_CLR_BUSY (1 << 10) #define RX_FIS_D2H_REG 0x40 /* offset of D2H Register FIS data */ /* Global controller registers */ #define HOST_CAP 0x00 /* host capabilities */ #define HOST_CTL 0x04 /* global host control */ #define HOST_IRQ_STAT 0x08 /* interrupt status */ #define HOST_PORTS_IMPL 0x0c /* bitmap of implemented ports */ #define HOST_VERSION 0x10 /* AHCI spec. version compliancy */ /* HOST_CTL bits */ #define HOST_RESET (1 << 0) /* reset controller; self-clear */ #define HOST_IRQ_EN (1 << 1) /* global IRQ enable */ #define HOST_AHCI_EN (1 << 31) /* AHCI enabled */ /* Registers for each SATA port */ #define PORT_LST_ADDR 0x00 /* command list DMA addr */ #define PORT_LST_ADDR_HI 0x04 /* command list DMA addr hi */ #define PORT_FIS_ADDR 0x08 /* FIS rx buf addr */ #define PORT_FIS_ADDR_HI 0x0c /* FIS rx buf addr hi */ #define PORT_IRQ_STAT 0x10 /* interrupt status */ #define PORT_IRQ_MASK 0x14 /* interrupt enable/disable mask */ #define PORT_CMD 0x18 /* port command */ #define PORT_TFDATA 0x20 /* taskfile data */ #define PORT_SIG 0x24 /* device TF signature */ #define PORT_CMD_ISSUE 0x38 /* command issue */ #define PORT_SCR 0x28 /* SATA phy register block */ #define PORT_SCR_STAT 0x28 /* SATA phy register: SStatus */ #define PORT_SCR_CTL 0x2c /* SATA phy register: SControl */ #define PORT_SCR_ERR 0x30 /* SATA phy register: SError */ #define PORT_SCR_ACT 0x34 /* SATA phy register: SActive */ /* PORT_IRQ_{STAT,MASK} bits */ #define PORT_IRQ_COLD_PRES (1 << 31) /* cold presence detect */ #define PORT_IRQ_TF_ERR (1 << 30) /* task file error */ #define PORT_IRQ_HBUS_ERR (1 << 29) /* host bus fatal error */ #define PORT_IRQ_HBUS_DATA_ERR (1 << 28) /* host bus data error */ #define PORT_IRQ_IF_ERR (1 << 27) /* interface fatal error */ #define PORT_IRQ_IF_NONFATAL (1 << 26) /* interface non-fatal error */ #define PORT_IRQ_OVERFLOW (1 << 24) /* xfer exhausted available S/G */ #define PORT_IRQ_BAD_PMP (1 << 23) /* incorrect port multiplier */ #define PORT_IRQ_PHYRDY (1 << 22) /* PhyRdy changed */ #define PORT_IRQ_DEV_ILCK (1 << 7) /* device interlock */ #define PORT_IRQ_CONNECT (1 << 6) /* port connect change status */ #define PORT_IRQ_SG_DONE (1 << 5) /* descriptor processed */ #define PORT_IRQ_UNK_FIS (1 << 4) /* unknown FIS rx'd */ #define PORT_IRQ_SDB_FIS (1 << 3) /* Set Device Bits FIS rx'd */ #define PORT_IRQ_DMAS_FIS (1 << 2) /* DMA Setup FIS rx'd */ #define PORT_IRQ_PIOS_FIS (1 << 1) /* PIO Setup FIS rx'd */ #define PORT_IRQ_D2H_REG_FIS (1 << 0) /* D2H Register FIS rx'd */ #define PORT_IRQ_FATAL PORT_IRQ_TF_ERR | PORT_IRQ_HBUS_ERR \ | PORT_IRQ_HBUS_DATA_ERR | PORT_IRQ_IF_ERR #define DEF_PORT_IRQ PORT_IRQ_FATAL | PORT_IRQ_PHYRDY \ | PORT_IRQ_CONNECT | PORT_IRQ_SG_DONE \ | PORT_IRQ_UNK_FIS | PORT_IRQ_SDB_FIS \ | PORT_IRQ_DMAS_FIS | PORT_IRQ_PIOS_FIS \ | PORT_IRQ_D2H_REG_FIS /* PORT_CMD bits */ #define PORT_CMD_ATAPI (1 << 24) /* Device is ATAPI */ #define PORT_CMD_LIST_ON (1 << 15) /* cmd list DMA engine running */ #define PORT_CMD_FIS_ON (1 << 14) /* FIS DMA engine running */ #define PORT_CMD_FIS_RX (1 << 4) /* Enable FIS receive DMA engine */ #define PORT_CMD_CLO (1 << 3) /* Command list override */ #define PORT_CMD_POWER_ON (1 << 2) /* Power up device */ #define PORT_CMD_SPIN_UP (1 << 1) /* Spin up device */ #define PORT_CMD_START (1 << 0) /* Enable port DMA engine */ #define PORT_CMD_ICC_ACTIVE (0x1 << 28) /* Put i/f in active state */ #define PORT_CMD_ICC_PARTIAL (0x2 << 28) /* Put i/f in partial state */ #define PORT_CMD_ICC_SLUMBER (0x6 << 28) /* Put i/f in slumber state */ #define AHCI_MAX_PORTS 32 /* SETFEATURES stuff */ #define SETFEATURES_XFER 0x03 #define XFER_UDMA_7 0x47 #define XFER_UDMA_6 0x46 #define XFER_UDMA_5 0x45 #define XFER_UDMA_4 0x44 #define XFER_UDMA_3 0x43 #define XFER_UDMA_2 0x42 #define XFER_UDMA_1 0x41 #define XFER_UDMA_0 0x40 #define XFER_MW_DMA_2 0x22 #define XFER_MW_DMA_1 0x21 #define XFER_MW_DMA_0 0x20 #define XFER_SW_DMA_2 0x12 #define XFER_SW_DMA_1 0x11 #define XFER_SW_DMA_0 0x10 #define XFER_PIO_4 0x0C #define XFER_PIO_3 0x0B #define XFER_PIO_2 0x0A #define XFER_PIO_1 0x09 #define XFER_PIO_0 0x08 #define XFER_PIO_SLOW 0x00 #define ATA_FLAG_SATA (1 << 3) #define ATA_FLAG_NO_LEGACY (1 << 4) /* no legacy mode check */ #define ATA_FLAG_MMIO (1 << 6) /* use MMIO, not PIO */ #define ATA_FLAG_SATA_RESET (1 << 7) /* (obsolete) use COMRESET */ #define ATA_FLAG_PIO_DMA (1 << 8) /* PIO cmds via DMA */ #define ATA_FLAG_NO_ATAPI (1 << 11) /* No ATAPI support */ struct ahci_cmd_hdr { u32 opts; u32 status; u32 tbl_addr; u32 tbl_addr_hi; u32 reserved[4]; }; struct ahci_sg { u32 addr; u32 addr_hi; u32 reserved; u32 flags_size; }; struct ahci_ioports { u32 cmd_addr; u32 scr_addr; u32 port_mmio; struct ahci_cmd_hdr *cmd_slot; struct ahci_sg *cmd_tbl_sg; u32 cmd_tbl; u32 rx_fis; }; struct ahci_probe_ent { pci_dev_t dev; struct ahci_ioports port[AHCI_MAX_PORTS]; u32 n_ports; u32 hard_port_no; u32 host_flags; u32 host_set_flags; u32 mmio_base; u32 pio_mask; u32 udma_mask; u32 flags; u32 cap; /* cache of HOST_CAP register */ u32 port_map; /* cache of HOST_PORTS_IMPL reg */ u32 link_port_map; /*linkup port map*/ }; int ahci_init(u32 base); #endif