1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * Copyright (C) Freescale Semiconductor, Inc. 2006.
4 * Author: Jason Jin<Jason.jin@freescale.com>
5 * Zhang Wei<wei.zhang@freescale.com>
12 #define AHCI_PCI_BAR 0x24
13 #define AHCI_MAX_SG 56 /* hardware max is 64K */
14 #define AHCI_CMD_SLOT_SZ 32
15 #define AHCI_MAX_CMD_SLOT 32
16 #define AHCI_RX_FIS_SZ 256
17 #define AHCI_CMD_TBL_HDR 0x80
18 #define AHCI_CMD_TBL_CDB 0x40
19 #define AHCI_CMD_TBL_SZ AHCI_CMD_TBL_HDR + (AHCI_MAX_SG * 16)
20 #define AHCI_PORT_PRIV_DMA_SZ (AHCI_CMD_SLOT_SZ * AHCI_MAX_CMD_SLOT + \
21 AHCI_CMD_TBL_SZ + AHCI_RX_FIS_SZ)
22 #define AHCI_CMD_ATAPI (1 << 5)
23 #define AHCI_CMD_WRITE (1 << 6)
24 #define AHCI_CMD_PREFETCH (1 << 7)
25 #define AHCI_CMD_RESET (1 << 8)
26 #define AHCI_CMD_CLR_BUSY (1 << 10)
28 #define RX_FIS_D2H_REG 0x40 /* offset of D2H Register FIS data */
30 /* Global controller registers */
31 #define HOST_CAP 0x00 /* host capabilities */
32 #define HOST_CTL 0x04 /* global host control */
33 #define HOST_IRQ_STAT 0x08 /* interrupt status */
34 #define HOST_PORTS_IMPL 0x0c /* bitmap of implemented ports */
35 #define HOST_VERSION 0x10 /* AHCI spec. version compliancy */
36 #define HOST_CAP2 0x24 /* host capabilities, extended */
39 #define HOST_RESET (1 << 0) /* reset controller; self-clear */
40 #define HOST_IRQ_EN (1 << 1) /* global IRQ enable */
41 #define HOST_AHCI_EN (1 << 31) /* AHCI enabled */
43 /* Registers for each SATA port */
44 #define PORT_LST_ADDR 0x00 /* command list DMA addr */
45 #define PORT_LST_ADDR_HI 0x04 /* command list DMA addr hi */
46 #define PORT_FIS_ADDR 0x08 /* FIS rx buf addr */
47 #define PORT_FIS_ADDR_HI 0x0c /* FIS rx buf addr hi */
48 #define PORT_IRQ_STAT 0x10 /* interrupt status */
49 #define PORT_IRQ_MASK 0x14 /* interrupt enable/disable mask */
50 #define PORT_CMD 0x18 /* port command */
51 #define PORT_TFDATA 0x20 /* taskfile data */
52 #define PORT_SIG 0x24 /* device TF signature */
53 #define PORT_CMD_ISSUE 0x38 /* command issue */
54 #define PORT_SCR 0x28 /* SATA phy register block */
55 #define PORT_SCR_STAT 0x28 /* SATA phy register: SStatus */
56 #define PORT_SCR_CTL 0x2c /* SATA phy register: SControl */
57 #define PORT_SCR_ERR 0x30 /* SATA phy register: SError */
58 #define PORT_SCR_ACT 0x34 /* SATA phy register: SActive */
60 #ifdef CONFIG_SUNXI_AHCI
61 #define PORT_P0DMACR 0x70 /* SUNXI specific "DMA register" */
64 /* PORT_IRQ_{STAT,MASK} bits */
65 #define PORT_IRQ_COLD_PRES (1 << 31) /* cold presence detect */
66 #define PORT_IRQ_TF_ERR (1 << 30) /* task file error */
67 #define PORT_IRQ_HBUS_ERR (1 << 29) /* host bus fatal error */
68 #define PORT_IRQ_HBUS_DATA_ERR (1 << 28) /* host bus data error */
69 #define PORT_IRQ_IF_ERR (1 << 27) /* interface fatal error */
70 #define PORT_IRQ_IF_NONFATAL (1 << 26) /* interface non-fatal error */
71 #define PORT_IRQ_OVERFLOW (1 << 24) /* xfer exhausted available S/G */
72 #define PORT_IRQ_BAD_PMP (1 << 23) /* incorrect port multiplier */
74 #define PORT_IRQ_PHYRDY (1 << 22) /* PhyRdy changed */
75 #define PORT_IRQ_DEV_ILCK (1 << 7) /* device interlock */
76 #define PORT_IRQ_CONNECT (1 << 6) /* port connect change status */
77 #define PORT_IRQ_SG_DONE (1 << 5) /* descriptor processed */
78 #define PORT_IRQ_UNK_FIS (1 << 4) /* unknown FIS rx'd */
79 #define PORT_IRQ_SDB_FIS (1 << 3) /* Set Device Bits FIS rx'd */
80 #define PORT_IRQ_DMAS_FIS (1 << 2) /* DMA Setup FIS rx'd */
81 #define PORT_IRQ_PIOS_FIS (1 << 1) /* PIO Setup FIS rx'd */
82 #define PORT_IRQ_D2H_REG_FIS (1 << 0) /* D2H Register FIS rx'd */
84 #define PORT_IRQ_FATAL PORT_IRQ_TF_ERR | PORT_IRQ_HBUS_ERR \
85 | PORT_IRQ_HBUS_DATA_ERR | PORT_IRQ_IF_ERR
87 #define DEF_PORT_IRQ PORT_IRQ_FATAL | PORT_IRQ_PHYRDY \
88 | PORT_IRQ_CONNECT | PORT_IRQ_SG_DONE \
89 | PORT_IRQ_UNK_FIS | PORT_IRQ_SDB_FIS \
90 | PORT_IRQ_DMAS_FIS | PORT_IRQ_PIOS_FIS \
91 | PORT_IRQ_D2H_REG_FIS
93 /* PORT_SCR_STAT bits */
94 #define PORT_SCR_STAT_DET_MASK 0x3
95 #define PORT_SCR_STAT_DET_COMINIT 0x1
96 #define PORT_SCR_STAT_DET_PHYRDY 0x3
99 #define PORT_CMD_ATAPI (1 << 24) /* Device is ATAPI */
100 #define PORT_CMD_LIST_ON (1 << 15) /* cmd list DMA engine running */
101 #define PORT_CMD_FIS_ON (1 << 14) /* FIS DMA engine running */
102 #define PORT_CMD_FIS_RX (1 << 4) /* Enable FIS receive DMA engine */
103 #define PORT_CMD_CLO (1 << 3) /* Command list override */
104 #define PORT_CMD_POWER_ON (1 << 2) /* Power up device */
105 #define PORT_CMD_SPIN_UP (1 << 1) /* Spin up device */
106 #define PORT_CMD_START (1 << 0) /* Enable port DMA engine */
108 #define PORT_CMD_ICC_ACTIVE (0x1 << 28) /* Put i/f in active state */
109 #define PORT_CMD_ICC_PARTIAL (0x2 << 28) /* Put i/f in partial state */
110 #define PORT_CMD_ICC_SLUMBER (0x6 << 28) /* Put i/f in slumber state */
112 #define AHCI_MAX_PORTS 32
114 #define ATA_FLAG_SATA (1 << 3)
115 #define ATA_FLAG_NO_LEGACY (1 << 4) /* no legacy mode check */
116 #define ATA_FLAG_MMIO (1 << 6) /* use MMIO, not PIO */
117 #define ATA_FLAG_SATA_RESET (1 << 7) /* (obsolete) use COMRESET */
118 #define ATA_FLAG_PIO_DMA (1 << 8) /* PIO cmds via DMA */
119 #define ATA_FLAG_NO_ATAPI (1 << 11) /* No ATAPI support */
121 struct ahci_cmd_hdr {
136 struct ahci_ioports {
137 void __iomem *port_mmio;
138 struct ahci_cmd_hdr *cmd_slot;
139 struct ahci_sg *cmd_tbl_sg;
145 * struct ahci_uc_priv - information about an AHCI controller
147 * When driver model is used, this is accessible using dev_get_uclass_priv(dev)
148 * where dev is the controller (although at present it sometimes stands alone).
150 struct ahci_uc_priv {
151 #if defined(CONFIG_DM_PCI) || defined(CONFIG_DM_SCSI)
153 * TODO(sjg@chromium.org): Drop this once this structure is only used
154 * in a driver-model context (i.e. attached to a device with
155 * dev_get_uclass_priv()
161 struct ahci_ioports port[AHCI_MAX_PORTS];
162 u16 *ataid[AHCI_MAX_PORTS];
167 void __iomem *mmio_base;
171 u32 cap; /* cache of HOST_CAP register */
172 u32 port_map; /* cache of HOST_PORTS_IMPL reg */
173 u32 link_port_map; /*linkup port map*/
178 * reset() - reset the controller
180 * @dev: Controller to reset
181 * @return 0 if OK, -ve on error
183 int (*reset)(struct udevice *dev);
186 * port_status() - get the status of a SATA port
188 * @dev: Controller to reset
189 * @port: Port number to check (0 for first)
190 * @return 0 if detected, -ENXIO if nothing on port, other -ve on error
192 int (*port_status)(struct udevice *dev, int port);
195 * scan() - scan SATA ports
197 * @dev: Controller to scan
198 * @return 0 if OK, -ve on error
200 int (*scan)(struct udevice *dev);
203 #define ahci_get_ops(dev) ((struct ahci_ops *)(dev)->driver->ops)
206 * sata_reset() - reset the controller
208 * @dev: Controller to reset
209 * @return 0 if OK, -ve on error
211 int sata_reset(struct udevice *dev);
214 * sata_port_status() - get the status of a SATA port
216 * @dev: Controller to reset
217 * @port: Port number to check (0 for first)
218 * @return 0 if detected, -ENXIO if nothin on port, other -ve on error
220 int sata_dm_port_status(struct udevice *dev, int port);
223 * sata_scan() - scan SATA ports
225 * @dev: Controller to scan
226 * @return 0 if OK, -ve on error
228 int sata_scan(struct udevice *dev);
230 int ahci_init(void __iomem *base);
231 int ahci_reset(void __iomem *base);
234 * ahci_init_one_dm() - set up a single AHCI port
236 * @dev: Controller to init
238 int ahci_init_one_dm(struct udevice *dev);
241 * ahci_start_ports_dm() - start all AHCI ports for a controller
243 * @dev: Controller containing ports to start
245 int ahci_start_ports_dm(struct udevice *dev);
248 * ahci_init_dm() - init AHCI for a controller, finding all ports
250 * @dev: Device to init
252 int ahci_init_dm(struct udevice *dev, void __iomem *base);
255 * ahci_bind_scsi() - bind a new SCSI bus as a child
257 * Note that the SCSI bus device will itself bind block devices
259 * @ahci_dev: AHCI parent device
260 * @devp: Returns new SCSI bus device
261 * @return 0 if OK, -ve on error
263 int ahci_bind_scsi(struct udevice *ahci_dev, struct udevice **devp);
266 * ahci_probe_scsi() - probe and scan the attached SCSI bus
268 * Note that the SCSI device will itself bind block devices for any storage
271 * @ahci_dev: AHCI parent device
272 * @base: Base address of AHCI port
273 * @return 0 if OK, -ve on error
275 int ahci_probe_scsi(struct udevice *ahci_dev, ulong base);
278 * ahci_probe_scsi_pci() - probe and scan the attached SCSI bus on PCI
280 * Note that the SCSI device will itself bind block devices for any storage
283 * @ahci_dev: AHCI parent device
284 * @return 0 if OK, -ve on error
286 int ahci_probe_scsi_pci(struct udevice *ahci_dev);