2 * Copyright (C) Freescale Semiconductor, Inc. 2006.
3 * Author: Jason Jin<Jason.jin@freescale.com>
4 * Zhang Wei<wei.zhang@freescale.com>
6 * SPDX-License-Identifier: GPL-2.0+
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)
29 #define RX_FIS_D2H_REG 0x40 /* offset of D2H Register FIS data */
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 */
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 */
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 */
61 #ifdef CONFIG_SUNXI_AHCI
62 #define PORT_P0DMACR 0x70 /* SUNXI specific "DMA register" */
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 */
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 */
85 #define PORT_IRQ_FATAL PORT_IRQ_TF_ERR | PORT_IRQ_HBUS_ERR \
86 | PORT_IRQ_HBUS_DATA_ERR | PORT_IRQ_IF_ERR
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
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
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 */
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 */
113 #define AHCI_MAX_PORTS 32
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 */
122 struct ahci_cmd_hdr {
137 struct ahci_ioports {
138 void __iomem *cmd_addr;
139 void __iomem *scr_addr;
140 void __iomem *port_mmio;
141 struct ahci_cmd_hdr *cmd_slot;
142 struct ahci_sg *cmd_tbl_sg;
148 * struct ahci_uc_priv - information about an AHCI controller
150 * When driver model is used, this is accessible using dev_get_uclass_priv(dev)
151 * where dev is the controller (although at present it sometimes stands alone).
153 struct ahci_uc_priv {
154 #if defined(CONFIG_DM_PCI) || defined(CONFIG_DM_SCSI)
156 * TODO(sjg@chromium.org): Drop this once this structure is only used
157 * in a driver-model context (i.e. attached to a device with
158 * dev_get_uclass_priv()
164 struct ahci_ioports port[AHCI_MAX_PORTS];
165 u16 *ataid[AHCI_MAX_PORTS];
170 void __iomem *mmio_base;
174 u32 cap; /* cache of HOST_CAP register */
175 u32 port_map; /* cache of HOST_PORTS_IMPL reg */
176 u32 link_port_map; /*linkup port map*/
181 * reset() - reset the controller
183 * @dev: Controller to reset
184 * @return 0 if OK, -ve on error
186 int (*reset)(struct udevice *dev);
189 * port_status() - get the status of a SATA port
191 * @dev: Controller to reset
192 * @port: Port number to check (0 for first)
193 * @return 0 if detected, -ENXIO if nothing on port, other -ve on error
195 int (*port_status)(struct udevice *dev, int port);
198 * scan() - scan SATA ports
200 * @dev: Controller to scan
201 * @return 0 if OK, -ve on error
203 int (*scan)(struct udevice *dev);
206 #define ahci_get_ops(dev) ((struct ahci_ops *)(dev)->driver->ops)
209 * sata_reset() - reset the controller
211 * @dev: Controller to reset
212 * @return 0 if OK, -ve on error
214 int sata_reset(struct udevice *dev);
217 * sata_port_status() - get the status of a SATA port
219 * @dev: Controller to reset
220 * @port: Port number to check (0 for first)
221 * @return 0 if detected, -ENXIO if nothin on port, other -ve on error
223 int sata_dm_port_status(struct udevice *dev, int port);
226 * sata_scan() - scan SATA ports
228 * @dev: Controller to scan
229 * @return 0 if OK, -ve on error
231 int sata_scan(struct udevice *dev);
233 int ahci_init(void __iomem *base);
234 int ahci_reset(void __iomem *base);
237 * ahci_init_one_dm() - set up a single AHCI port
239 * @dev: Controller to init
241 int ahci_init_one_dm(struct udevice *dev);
244 * ahci_start_ports_dm() - start all AHCI ports for a controller
246 * @dev: Controller containing ports to start
248 int ahci_start_ports_dm(struct udevice *dev);
251 * ahci_init_dm() - init AHCI for a controller, finding all ports
253 * @dev: Device to init
255 int ahci_init_dm(struct udevice *dev, void __iomem *base);
258 * ahci_bind_scsi() - bind a new SCSI bus as a child
260 * Note that the SCSI bus device will itself bind block devices
262 * @ahci_dev: AHCI parent device
263 * @devp: Returns new SCSI bus device
264 * @return 0 if OK, -ve on error
266 int ahci_bind_scsi(struct udevice *ahci_dev, struct udevice **devp);
269 * ahci_probe_scsi() - probe and scan the attached SCSI bus
271 * Note that the SCSI device will itself bind block devices for any storage
274 * @ahci_dev: AHCI parent device
275 * @base: Base address of AHCI port
276 * @return 0 if OK, -ve on error
278 int ahci_probe_scsi(struct udevice *ahci_dev, ulong base);
281 * ahci_probe_scsi_pci() - probe and scan the attached SCSI bus on PCI
283 * Note that the SCSI device will itself bind block devices for any storage
286 * @ahci_dev: AHCI parent device
287 * @return 0 if OK, -ve on error
289 int ahci_probe_scsi_pci(struct udevice *ahci_dev);