Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * sata_sx4.c - Promise SATA |
| 3 | * |
| 4 | * Maintained by: Jeff Garzik <jgarzik@pobox.com> |
| 5 | * Please ALWAYS copy linux-ide@vger.kernel.org |
| 6 | * on emails. |
| 7 | * |
| 8 | * Copyright 2003-2004 Red Hat, Inc. |
| 9 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10 | * |
Jeff Garzik | af36d7f | 2005-08-28 20:18:39 -0400 | [diff] [blame] | 11 | * This program is free software; you can redistribute it and/or modify |
| 12 | * it under the terms of the GNU General Public License as published by |
| 13 | * the Free Software Foundation; either version 2, or (at your option) |
| 14 | * any later version. |
| 15 | * |
| 16 | * This program is distributed in the hope that it will be useful, |
| 17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 19 | * GNU General Public License for more details. |
| 20 | * |
| 21 | * You should have received a copy of the GNU General Public License |
| 22 | * along with this program; see the file COPYING. If not, write to |
| 23 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
| 24 | * |
| 25 | * |
| 26 | * libata documentation is available via 'make {ps|pdf}docs', |
| 27 | * as Documentation/DocBook/libata.* |
| 28 | * |
| 29 | * Hardware documentation available under NDA. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 30 | * |
| 31 | */ |
| 32 | |
Jeff Garzik | a09060f | 2007-05-28 08:17:06 -0400 | [diff] [blame] | 33 | /* |
| 34 | Theory of operation |
| 35 | ------------------- |
| 36 | |
| 37 | The SX4 (PDC20621) chip features a single Host DMA (HDMA) copy |
| 38 | engine, DIMM memory, and four ATA engines (one per SATA port). |
| 39 | Data is copied to/from DIMM memory by the HDMA engine, before |
| 40 | handing off to one (or more) of the ATA engines. The ATA |
| 41 | engines operate solely on DIMM memory. |
| 42 | |
| 43 | The SX4 behaves like a PATA chip, with no SATA controls or |
| 44 | knowledge whatsoever, leading to the presumption that |
| 45 | PATA<->SATA bridges exist on SX4 boards, external to the |
| 46 | PDC20621 chip itself. |
| 47 | |
| 48 | The chip is quite capable, supporting an XOR engine and linked |
| 49 | hardware commands (permits a string to transactions to be |
| 50 | submitted and waited-on as a single unit), and an optional |
| 51 | microprocessor. |
| 52 | |
| 53 | The limiting factor is largely software. This Linux driver was |
| 54 | written to multiplex the single HDMA engine to copy disk |
| 55 | transactions into a fixed DIMM memory space, from where an ATA |
| 56 | engine takes over. As a result, each WRITE looks like this: |
| 57 | |
| 58 | submit HDMA packet to hardware |
| 59 | hardware copies data from system memory to DIMM |
| 60 | hardware raises interrupt |
| 61 | |
| 62 | submit ATA packet to hardware |
| 63 | hardware executes ATA WRITE command, w/ data in DIMM |
| 64 | hardware raises interrupt |
Jeff Garzik | 2dcb407 | 2007-10-19 06:42:56 -0400 | [diff] [blame] | 65 | |
Jeff Garzik | a09060f | 2007-05-28 08:17:06 -0400 | [diff] [blame] | 66 | and each READ looks like this: |
| 67 | |
| 68 | submit ATA packet to hardware |
| 69 | hardware executes ATA READ command, w/ data in DIMM |
| 70 | hardware raises interrupt |
Jeff Garzik | 2dcb407 | 2007-10-19 06:42:56 -0400 | [diff] [blame] | 71 | |
Jeff Garzik | a09060f | 2007-05-28 08:17:06 -0400 | [diff] [blame] | 72 | submit HDMA packet to hardware |
| 73 | hardware copies data from DIMM to system memory |
| 74 | hardware raises interrupt |
| 75 | |
| 76 | This is a very slow, lock-step way of doing things that can |
| 77 | certainly be improved by motivated kernel hackers. |
| 78 | |
| 79 | */ |
| 80 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 81 | #include <linux/kernel.h> |
| 82 | #include <linux/module.h> |
| 83 | #include <linux/pci.h> |
| 84 | #include <linux/init.h> |
| 85 | #include <linux/blkdev.h> |
| 86 | #include <linux/delay.h> |
| 87 | #include <linux/interrupt.h> |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 88 | #include <linux/device.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 89 | #include <scsi/scsi_host.h> |
Jeff Garzik | 193515d | 2005-11-07 00:59:37 -0500 | [diff] [blame] | 90 | #include <scsi/scsi_cmnd.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 91 | #include <linux/libata.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 92 | #include "sata_promise.h" |
| 93 | |
| 94 | #define DRV_NAME "sata_sx4" |
Jeff Garzik | 2a3103c | 2007-08-31 04:54:06 -0400 | [diff] [blame] | 95 | #define DRV_VERSION "0.12" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 96 | |
| 97 | |
| 98 | enum { |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 99 | PDC_MMIO_BAR = 3, |
| 100 | PDC_DIMM_BAR = 4, |
| 101 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 102 | PDC_PRD_TBL = 0x44, /* Direct command DMA table addr */ |
| 103 | |
| 104 | PDC_PKT_SUBMIT = 0x40, /* Command packet pointer addr */ |
| 105 | PDC_HDMA_PKT_SUBMIT = 0x100, /* Host DMA packet pointer addr */ |
| 106 | PDC_INT_SEQMASK = 0x40, /* Mask of asserted SEQ INTs */ |
| 107 | PDC_HDMA_CTLSTAT = 0x12C, /* Host DMA control / status */ |
| 108 | |
Jeff Garzik | a09060f | 2007-05-28 08:17:06 -0400 | [diff] [blame] | 109 | PDC_CTLSTAT = 0x60, /* IDEn control / status */ |
| 110 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 111 | PDC_20621_SEQCTL = 0x400, |
| 112 | PDC_20621_SEQMASK = 0x480, |
| 113 | PDC_20621_GENERAL_CTL = 0x484, |
| 114 | PDC_20621_PAGE_SIZE = (32 * 1024), |
| 115 | |
| 116 | /* chosen, not constant, values; we design our own DIMM mem map */ |
| 117 | PDC_20621_DIMM_WINDOW = 0x0C, /* page# for 32K DIMM window */ |
| 118 | PDC_20621_DIMM_BASE = 0x00200000, |
| 119 | PDC_20621_DIMM_DATA = (64 * 1024), |
| 120 | PDC_DIMM_DATA_STEP = (256 * 1024), |
| 121 | PDC_DIMM_WINDOW_STEP = (8 * 1024), |
| 122 | PDC_DIMM_HOST_PRD = (6 * 1024), |
| 123 | PDC_DIMM_HOST_PKT = (128 * 0), |
| 124 | PDC_DIMM_HPKT_PRD = (128 * 1), |
| 125 | PDC_DIMM_ATA_PKT = (128 * 2), |
| 126 | PDC_DIMM_APKT_PRD = (128 * 3), |
| 127 | PDC_DIMM_HEADER_SZ = PDC_DIMM_APKT_PRD + 128, |
| 128 | PDC_PAGE_WINDOW = 0x40, |
| 129 | PDC_PAGE_DATA = PDC_PAGE_WINDOW + |
| 130 | (PDC_20621_DIMM_DATA / PDC_20621_PAGE_SIZE), |
| 131 | PDC_PAGE_SET = PDC_DIMM_DATA_STEP / PDC_20621_PAGE_SIZE, |
| 132 | |
| 133 | PDC_CHIP0_OFS = 0xC0000, /* offset of chip #0 */ |
| 134 | |
| 135 | PDC_20621_ERR_MASK = (1<<19) | (1<<20) | (1<<21) | (1<<22) | |
| 136 | (1<<23), |
| 137 | |
| 138 | board_20621 = 0, /* FastTrak S150 SX4 */ |
| 139 | |
Jeff Garzik | b2d46b6 | 2007-05-27 22:58:54 -0400 | [diff] [blame] | 140 | PDC_MASK_INT = (1 << 10), /* HDMA/ATA mask int */ |
| 141 | PDC_RESET = (1 << 11), /* HDMA/ATA reset */ |
Jeff Garzik | a09060f | 2007-05-28 08:17:06 -0400 | [diff] [blame] | 142 | PDC_DMA_ENABLE = (1 << 7), /* DMA start/stop */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 143 | |
| 144 | PDC_MAX_HDMA = 32, |
| 145 | PDC_HDMA_Q_MASK = (PDC_MAX_HDMA - 1), |
| 146 | |
Jeff Garzik | b2d46b6 | 2007-05-27 22:58:54 -0400 | [diff] [blame] | 147 | PDC_DIMM0_SPD_DEV_ADDRESS = 0x50, |
| 148 | PDC_DIMM1_SPD_DEV_ADDRESS = 0x51, |
| 149 | PDC_I2C_CONTROL = 0x48, |
| 150 | PDC_I2C_ADDR_DATA = 0x4C, |
| 151 | PDC_DIMM0_CONTROL = 0x80, |
| 152 | PDC_DIMM1_CONTROL = 0x84, |
| 153 | PDC_SDRAM_CONTROL = 0x88, |
| 154 | PDC_I2C_WRITE = 0, /* master -> slave */ |
| 155 | PDC_I2C_READ = (1 << 6), /* master <- slave */ |
| 156 | PDC_I2C_START = (1 << 7), /* start I2C proto */ |
| 157 | PDC_I2C_MASK_INT = (1 << 5), /* mask I2C interrupt */ |
| 158 | PDC_I2C_COMPLETE = (1 << 16), /* I2C normal compl. */ |
| 159 | PDC_I2C_NO_ACK = (1 << 20), /* slave no-ack addr */ |
| 160 | PDC_DIMM_SPD_SUBADDRESS_START = 0x00, |
| 161 | PDC_DIMM_SPD_SUBADDRESS_END = 0x7F, |
| 162 | PDC_DIMM_SPD_ROW_NUM = 3, |
| 163 | PDC_DIMM_SPD_COLUMN_NUM = 4, |
| 164 | PDC_DIMM_SPD_MODULE_ROW = 5, |
| 165 | PDC_DIMM_SPD_TYPE = 11, |
| 166 | PDC_DIMM_SPD_FRESH_RATE = 12, |
| 167 | PDC_DIMM_SPD_BANK_NUM = 17, |
| 168 | PDC_DIMM_SPD_CAS_LATENCY = 18, |
| 169 | PDC_DIMM_SPD_ATTRIBUTE = 21, |
| 170 | PDC_DIMM_SPD_ROW_PRE_CHARGE = 27, |
| 171 | PDC_DIMM_SPD_ROW_ACTIVE_DELAY = 28, |
| 172 | PDC_DIMM_SPD_RAS_CAS_DELAY = 29, |
| 173 | PDC_DIMM_SPD_ACTIVE_PRECHARGE = 30, |
| 174 | PDC_DIMM_SPD_SYSTEM_FREQ = 126, |
| 175 | PDC_CTL_STATUS = 0x08, |
| 176 | PDC_DIMM_WINDOW_CTLR = 0x0C, |
| 177 | PDC_TIME_CONTROL = 0x3C, |
| 178 | PDC_TIME_PERIOD = 0x40, |
| 179 | PDC_TIME_COUNTER = 0x44, |
| 180 | PDC_GENERAL_CTLR = 0x484, |
| 181 | PCI_PLL_INIT = 0x8A531824, |
| 182 | PCI_X_TCOUNT = 0xEE1E5CFF, |
| 183 | |
| 184 | /* PDC_TIME_CONTROL bits */ |
| 185 | PDC_TIMER_BUZZER = (1 << 10), |
| 186 | PDC_TIMER_MODE_PERIODIC = 0, /* bits 9:8 == 00 */ |
| 187 | PDC_TIMER_MODE_ONCE = (1 << 8), /* bits 9:8 == 01 */ |
| 188 | PDC_TIMER_ENABLE = (1 << 7), |
| 189 | PDC_TIMER_MASK_INT = (1 << 5), |
| 190 | PDC_TIMER_SEQ_MASK = 0x1f, /* SEQ ID for timer */ |
| 191 | PDC_TIMER_DEFAULT = PDC_TIMER_MODE_ONCE | |
| 192 | PDC_TIMER_ENABLE | |
| 193 | PDC_TIMER_MASK_INT, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 194 | }; |
| 195 | |
| 196 | |
| 197 | struct pdc_port_priv { |
| 198 | u8 dimm_buf[(ATA_PRD_SZ * ATA_MAX_PRD) + 512]; |
| 199 | u8 *pkt; |
| 200 | dma_addr_t pkt_dma; |
| 201 | }; |
| 202 | |
| 203 | struct pdc_host_priv { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 204 | unsigned int doing_hdma; |
| 205 | unsigned int hdma_prod; |
| 206 | unsigned int hdma_cons; |
| 207 | struct { |
| 208 | struct ata_queued_cmd *qc; |
| 209 | unsigned int seq; |
| 210 | unsigned long pkt_ofs; |
| 211 | } hdma[32]; |
| 212 | }; |
| 213 | |
| 214 | |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 215 | static int pdc_sata_init_one(struct pci_dev *pdev, const struct pci_device_id *ent); |
Jeff Garzik | 67651ee | 2009-04-08 16:02:18 -0400 | [diff] [blame^] | 216 | static void pdc_error_handler(struct ata_port *ap); |
| 217 | static void pdc_freeze(struct ata_port *ap); |
| 218 | static void pdc_thaw(struct ata_port *ap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 219 | static int pdc_port_start(struct ata_port *ap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 220 | static void pdc20621_qc_prep(struct ata_queued_cmd *qc); |
Jeff Garzik | 057ace5 | 2005-10-22 14:27:05 -0400 | [diff] [blame] | 221 | static void pdc_tf_load_mmio(struct ata_port *ap, const struct ata_taskfile *tf); |
| 222 | static void pdc_exec_command_mmio(struct ata_port *ap, const struct ata_taskfile *tf); |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 223 | static unsigned int pdc20621_dimm_init(struct ata_host *host); |
| 224 | static int pdc20621_detect_dimm(struct ata_host *host); |
| 225 | static unsigned int pdc20621_i2c_read(struct ata_host *host, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 226 | u32 device, u32 subaddr, u32 *pdata); |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 227 | static int pdc20621_prog_dimm0(struct ata_host *host); |
| 228 | static unsigned int pdc20621_prog_dimm_global(struct ata_host *host); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 229 | #ifdef ATA_VERBOSE_DEBUG |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 230 | static void pdc20621_get_from_dimm(struct ata_host *host, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 231 | void *psource, u32 offset, u32 size); |
| 232 | #endif |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 233 | static void pdc20621_put_to_dimm(struct ata_host *host, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 234 | void *psource, u32 offset, u32 size); |
| 235 | static void pdc20621_irq_clear(struct ata_port *ap); |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 236 | static unsigned int pdc20621_qc_issue(struct ata_queued_cmd *qc); |
Jeff Garzik | 67651ee | 2009-04-08 16:02:18 -0400 | [diff] [blame^] | 237 | static int pdc_softreset(struct ata_link *link, unsigned int *class, |
| 238 | unsigned long deadline); |
| 239 | static void pdc_post_internal_cmd(struct ata_queued_cmd *qc); |
| 240 | static int pdc_check_atapi_dma(struct ata_queued_cmd *qc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 241 | |
| 242 | |
Jeff Garzik | 193515d | 2005-11-07 00:59:37 -0500 | [diff] [blame] | 243 | static struct scsi_host_template pdc_sata_sht = { |
Tejun Heo | 68d1d07 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 244 | ATA_BASE_SHT(DRV_NAME), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 245 | .sg_tablesize = LIBATA_MAX_PRD, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 246 | .dma_boundary = ATA_DMA_BOUNDARY, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 247 | }; |
| 248 | |
Tejun Heo | 029cfd6 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 249 | /* TODO: inherit from base port_ops after converting to new EH */ |
| 250 | static struct ata_port_operations pdc_20621_ops = { |
Jeff Garzik | 67651ee | 2009-04-08 16:02:18 -0400 | [diff] [blame^] | 251 | .inherits = &ata_sff_port_ops, |
| 252 | |
| 253 | .check_atapi_dma = pdc_check_atapi_dma, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 254 | .qc_prep = pdc20621_qc_prep, |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 255 | .qc_issue = pdc20621_qc_issue, |
Jeff Garzik | 67651ee | 2009-04-08 16:02:18 -0400 | [diff] [blame^] | 256 | |
| 257 | .freeze = pdc_freeze, |
| 258 | .thaw = pdc_thaw, |
| 259 | .softreset = pdc_softreset, |
| 260 | .error_handler = pdc_error_handler, |
| 261 | .lost_interrupt = ATA_OP_NULL, |
| 262 | .post_internal_cmd = pdc_post_internal_cmd, |
| 263 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 264 | .port_start = pdc_port_start, |
Jeff Garzik | 67651ee | 2009-04-08 16:02:18 -0400 | [diff] [blame^] | 265 | |
| 266 | .sff_tf_load = pdc_tf_load_mmio, |
| 267 | .sff_exec_command = pdc_exec_command_mmio, |
| 268 | .sff_irq_clear = pdc20621_irq_clear, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 269 | }; |
| 270 | |
Arjan van de Ven | 98ac62d | 2005-11-28 10:06:23 +0100 | [diff] [blame] | 271 | static const struct ata_port_info pdc_port_info[] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 272 | /* board_20621 */ |
| 273 | { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 274 | .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | |
Jeff Garzik | 5063019 | 2005-12-13 02:29:45 -0500 | [diff] [blame] | 275 | ATA_FLAG_SRST | ATA_FLAG_MMIO | |
Albert Lee | 1f3461a | 2006-05-23 18:12:30 +0800 | [diff] [blame] | 276 | ATA_FLAG_NO_ATAPI | ATA_FLAG_PIO_POLLING, |
Erik Inge Bolsø | 14bdef9 | 2009-03-14 21:38:24 +0100 | [diff] [blame] | 277 | .pio_mask = ATA_PIO4, |
| 278 | .mwdma_mask = ATA_MWDMA2, |
Jeff Garzik | 469248a | 2007-07-08 01:13:16 -0400 | [diff] [blame] | 279 | .udma_mask = ATA_UDMA6, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 280 | .port_ops = &pdc_20621_ops, |
| 281 | }, |
| 282 | |
| 283 | }; |
| 284 | |
Jeff Garzik | 3b7d697 | 2005-11-10 11:04:11 -0500 | [diff] [blame] | 285 | static const struct pci_device_id pdc_sata_pci_tbl[] = { |
Jeff Garzik | 54bb3a9 | 2006-09-27 22:20:11 -0400 | [diff] [blame] | 286 | { PCI_VDEVICE(PROMISE, 0x6622), board_20621 }, |
| 287 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 288 | { } /* terminate list */ |
| 289 | }; |
| 290 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 291 | static struct pci_driver pdc_sata_pci_driver = { |
| 292 | .name = DRV_NAME, |
| 293 | .id_table = pdc_sata_pci_tbl, |
| 294 | .probe = pdc_sata_init_one, |
| 295 | .remove = ata_pci_remove_one, |
| 296 | }; |
| 297 | |
| 298 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 299 | static int pdc_port_start(struct ata_port *ap) |
| 300 | { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 301 | struct device *dev = ap->host->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 302 | struct pdc_port_priv *pp; |
| 303 | int rc; |
| 304 | |
| 305 | rc = ata_port_start(ap); |
| 306 | if (rc) |
| 307 | return rc; |
| 308 | |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 309 | pp = devm_kzalloc(dev, sizeof(*pp), GFP_KERNEL); |
| 310 | if (!pp) |
| 311 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 312 | |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 313 | pp->pkt = dmam_alloc_coherent(dev, 128, &pp->pkt_dma, GFP_KERNEL); |
| 314 | if (!pp->pkt) |
| 315 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 316 | |
| 317 | ap->private_data = pp; |
| 318 | |
| 319 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 320 | } |
| 321 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 322 | static inline void pdc20621_ata_sg(struct ata_taskfile *tf, u8 *buf, |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 323 | unsigned int portno, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 324 | unsigned int total_len) |
| 325 | { |
| 326 | u32 addr; |
| 327 | unsigned int dw = PDC_DIMM_APKT_PRD >> 2; |
Al Viro | 4ca4e43 | 2007-12-30 09:32:22 +0000 | [diff] [blame] | 328 | __le32 *buf32 = (__le32 *) buf; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 329 | |
| 330 | /* output ATA packet S/G table */ |
| 331 | addr = PDC_20621_DIMM_BASE + PDC_20621_DIMM_DATA + |
| 332 | (PDC_DIMM_DATA_STEP * portno); |
| 333 | VPRINTK("ATA sg addr 0x%x, %d\n", addr, addr); |
| 334 | buf32[dw] = cpu_to_le32(addr); |
| 335 | buf32[dw + 1] = cpu_to_le32(total_len | ATA_PRD_EOT); |
| 336 | |
| 337 | VPRINTK("ATA PSG @ %x == (0x%x, 0x%x)\n", |
| 338 | PDC_20621_DIMM_BASE + |
| 339 | (PDC_DIMM_WINDOW_STEP * portno) + |
| 340 | PDC_DIMM_APKT_PRD, |
| 341 | buf32[dw], buf32[dw + 1]); |
| 342 | } |
| 343 | |
| 344 | static inline void pdc20621_host_sg(struct ata_taskfile *tf, u8 *buf, |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 345 | unsigned int portno, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 346 | unsigned int total_len) |
| 347 | { |
| 348 | u32 addr; |
| 349 | unsigned int dw = PDC_DIMM_HPKT_PRD >> 2; |
Al Viro | 4ca4e43 | 2007-12-30 09:32:22 +0000 | [diff] [blame] | 350 | __le32 *buf32 = (__le32 *) buf; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 351 | |
| 352 | /* output Host DMA packet S/G table */ |
| 353 | addr = PDC_20621_DIMM_BASE + PDC_20621_DIMM_DATA + |
| 354 | (PDC_DIMM_DATA_STEP * portno); |
| 355 | |
| 356 | buf32[dw] = cpu_to_le32(addr); |
| 357 | buf32[dw + 1] = cpu_to_le32(total_len | ATA_PRD_EOT); |
| 358 | |
| 359 | VPRINTK("HOST PSG @ %x == (0x%x, 0x%x)\n", |
| 360 | PDC_20621_DIMM_BASE + |
| 361 | (PDC_DIMM_WINDOW_STEP * portno) + |
| 362 | PDC_DIMM_HPKT_PRD, |
| 363 | buf32[dw], buf32[dw + 1]); |
| 364 | } |
| 365 | |
| 366 | static inline unsigned int pdc20621_ata_pkt(struct ata_taskfile *tf, |
| 367 | unsigned int devno, u8 *buf, |
| 368 | unsigned int portno) |
| 369 | { |
| 370 | unsigned int i, dw; |
Al Viro | 4ca4e43 | 2007-12-30 09:32:22 +0000 | [diff] [blame] | 371 | __le32 *buf32 = (__le32 *) buf; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 372 | u8 dev_reg; |
| 373 | |
| 374 | unsigned int dimm_sg = PDC_20621_DIMM_BASE + |
| 375 | (PDC_DIMM_WINDOW_STEP * portno) + |
| 376 | PDC_DIMM_APKT_PRD; |
| 377 | VPRINTK("ENTER, dimm_sg == 0x%x, %d\n", dimm_sg, dimm_sg); |
| 378 | |
| 379 | i = PDC_DIMM_ATA_PKT; |
| 380 | |
| 381 | /* |
| 382 | * Set up ATA packet |
| 383 | */ |
| 384 | if ((tf->protocol == ATA_PROT_DMA) && (!(tf->flags & ATA_TFLAG_WRITE))) |
| 385 | buf[i++] = PDC_PKT_READ; |
| 386 | else if (tf->protocol == ATA_PROT_NODATA) |
| 387 | buf[i++] = PDC_PKT_NODATA; |
| 388 | else |
| 389 | buf[i++] = 0; |
| 390 | buf[i++] = 0; /* reserved */ |
| 391 | buf[i++] = portno + 1; /* seq. id */ |
| 392 | buf[i++] = 0xff; /* delay seq. id */ |
| 393 | |
| 394 | /* dimm dma S/G, and next-pkt */ |
| 395 | dw = i >> 2; |
| 396 | if (tf->protocol == ATA_PROT_NODATA) |
| 397 | buf32[dw] = 0; |
| 398 | else |
| 399 | buf32[dw] = cpu_to_le32(dimm_sg); |
| 400 | buf32[dw + 1] = 0; |
| 401 | i += 8; |
| 402 | |
| 403 | if (devno == 0) |
| 404 | dev_reg = ATA_DEVICE_OBS; |
| 405 | else |
| 406 | dev_reg = ATA_DEVICE_OBS | ATA_DEV1; |
| 407 | |
| 408 | /* select device */ |
| 409 | buf[i++] = (1 << 5) | PDC_PKT_CLEAR_BSY | ATA_REG_DEVICE; |
| 410 | buf[i++] = dev_reg; |
| 411 | |
| 412 | /* device control register */ |
| 413 | buf[i++] = (1 << 5) | PDC_REG_DEVCTL; |
| 414 | buf[i++] = tf->ctl; |
| 415 | |
| 416 | return i; |
| 417 | } |
| 418 | |
| 419 | static inline void pdc20621_host_pkt(struct ata_taskfile *tf, u8 *buf, |
| 420 | unsigned int portno) |
| 421 | { |
| 422 | unsigned int dw; |
Al Viro | 4ca4e43 | 2007-12-30 09:32:22 +0000 | [diff] [blame] | 423 | u32 tmp; |
| 424 | __le32 *buf32 = (__le32 *) buf; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 425 | |
| 426 | unsigned int host_sg = PDC_20621_DIMM_BASE + |
| 427 | (PDC_DIMM_WINDOW_STEP * portno) + |
| 428 | PDC_DIMM_HOST_PRD; |
| 429 | unsigned int dimm_sg = PDC_20621_DIMM_BASE + |
| 430 | (PDC_DIMM_WINDOW_STEP * portno) + |
| 431 | PDC_DIMM_HPKT_PRD; |
| 432 | VPRINTK("ENTER, dimm_sg == 0x%x, %d\n", dimm_sg, dimm_sg); |
| 433 | VPRINTK("host_sg == 0x%x, %d\n", host_sg, host_sg); |
| 434 | |
| 435 | dw = PDC_DIMM_HOST_PKT >> 2; |
| 436 | |
| 437 | /* |
| 438 | * Set up Host DMA packet |
| 439 | */ |
| 440 | if ((tf->protocol == ATA_PROT_DMA) && (!(tf->flags & ATA_TFLAG_WRITE))) |
| 441 | tmp = PDC_PKT_READ; |
| 442 | else |
| 443 | tmp = 0; |
| 444 | tmp |= ((portno + 1 + 4) << 16); /* seq. id */ |
| 445 | tmp |= (0xff << 24); /* delay seq. id */ |
| 446 | buf32[dw + 0] = cpu_to_le32(tmp); |
| 447 | buf32[dw + 1] = cpu_to_le32(host_sg); |
| 448 | buf32[dw + 2] = cpu_to_le32(dimm_sg); |
| 449 | buf32[dw + 3] = 0; |
| 450 | |
| 451 | VPRINTK("HOST PKT @ %x == (0x%x 0x%x 0x%x 0x%x)\n", |
| 452 | PDC_20621_DIMM_BASE + (PDC_DIMM_WINDOW_STEP * portno) + |
| 453 | PDC_DIMM_HOST_PKT, |
| 454 | buf32[dw + 0], |
| 455 | buf32[dw + 1], |
| 456 | buf32[dw + 2], |
| 457 | buf32[dw + 3]); |
| 458 | } |
| 459 | |
| 460 | static void pdc20621_dma_prep(struct ata_queued_cmd *qc) |
| 461 | { |
Jeff Garzik | cedc9a4 | 2005-10-05 07:13:30 -0400 | [diff] [blame] | 462 | struct scatterlist *sg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 463 | struct ata_port *ap = qc->ap; |
| 464 | struct pdc_port_priv *pp = ap->private_data; |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 465 | void __iomem *mmio = ap->host->iomap[PDC_MMIO_BAR]; |
| 466 | void __iomem *dimm_mmio = ap->host->iomap[PDC_DIMM_BAR]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 467 | unsigned int portno = ap->port_no; |
Tejun Heo | ff2aeb1 | 2007-12-05 16:43:11 +0900 | [diff] [blame] | 468 | unsigned int i, si, idx, total_len = 0, sgt_len; |
Al Viro | 826cd15 | 2008-03-25 05:18:11 +0000 | [diff] [blame] | 469 | __le32 *buf = (__le32 *) &pp->dimm_buf[PDC_DIMM_HEADER_SZ]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 470 | |
Tejun Heo | beec7db | 2006-02-11 19:11:13 +0900 | [diff] [blame] | 471 | WARN_ON(!(qc->flags & ATA_QCFLAG_DMAMAP)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 472 | |
Tejun Heo | 44877b4 | 2007-02-21 01:06:51 +0900 | [diff] [blame] | 473 | VPRINTK("ata%u: ENTER\n", ap->print_id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 474 | |
| 475 | /* hard-code chip #0 */ |
| 476 | mmio += PDC_CHIP0_OFS; |
| 477 | |
| 478 | /* |
| 479 | * Build S/G table |
| 480 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 481 | idx = 0; |
Tejun Heo | ff2aeb1 | 2007-12-05 16:43:11 +0900 | [diff] [blame] | 482 | for_each_sg(qc->sg, sg, qc->n_elem, si) { |
Jeff Garzik | cedc9a4 | 2005-10-05 07:13:30 -0400 | [diff] [blame] | 483 | buf[idx++] = cpu_to_le32(sg_dma_address(sg)); |
| 484 | buf[idx++] = cpu_to_le32(sg_dma_len(sg)); |
| 485 | total_len += sg_dma_len(sg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 486 | } |
| 487 | buf[idx - 1] |= cpu_to_le32(ATA_PRD_EOT); |
| 488 | sgt_len = idx * 4; |
| 489 | |
| 490 | /* |
| 491 | * Build ATA, host DMA packets |
| 492 | */ |
| 493 | pdc20621_host_sg(&qc->tf, &pp->dimm_buf[0], portno, total_len); |
| 494 | pdc20621_host_pkt(&qc->tf, &pp->dimm_buf[0], portno); |
| 495 | |
| 496 | pdc20621_ata_sg(&qc->tf, &pp->dimm_buf[0], portno, total_len); |
| 497 | i = pdc20621_ata_pkt(&qc->tf, qc->dev->devno, &pp->dimm_buf[0], portno); |
| 498 | |
| 499 | if (qc->tf.flags & ATA_TFLAG_LBA48) |
| 500 | i = pdc_prep_lba48(&qc->tf, &pp->dimm_buf[0], i); |
| 501 | else |
| 502 | i = pdc_prep_lba28(&qc->tf, &pp->dimm_buf[0], i); |
| 503 | |
| 504 | pdc_pkt_footer(&qc->tf, &pp->dimm_buf[0], i); |
| 505 | |
| 506 | /* copy three S/G tables and two packets to DIMM MMIO window */ |
| 507 | memcpy_toio(dimm_mmio + (portno * PDC_DIMM_WINDOW_STEP), |
| 508 | &pp->dimm_buf, PDC_DIMM_HEADER_SZ); |
| 509 | memcpy_toio(dimm_mmio + (portno * PDC_DIMM_WINDOW_STEP) + |
| 510 | PDC_DIMM_HOST_PRD, |
| 511 | &pp->dimm_buf[PDC_DIMM_HEADER_SZ], sgt_len); |
| 512 | |
| 513 | /* force host FIFO dump */ |
| 514 | writel(0x00000001, mmio + PDC_20621_GENERAL_CTL); |
| 515 | |
| 516 | readl(dimm_mmio); /* MMIO PCI posting flush */ |
| 517 | |
| 518 | VPRINTK("ata pkt buf ofs %u, prd size %u, mmio copied\n", i, sgt_len); |
| 519 | } |
| 520 | |
| 521 | static void pdc20621_nodata_prep(struct ata_queued_cmd *qc) |
| 522 | { |
| 523 | struct ata_port *ap = qc->ap; |
| 524 | struct pdc_port_priv *pp = ap->private_data; |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 525 | void __iomem *mmio = ap->host->iomap[PDC_MMIO_BAR]; |
| 526 | void __iomem *dimm_mmio = ap->host->iomap[PDC_DIMM_BAR]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 527 | unsigned int portno = ap->port_no; |
| 528 | unsigned int i; |
| 529 | |
Tejun Heo | 44877b4 | 2007-02-21 01:06:51 +0900 | [diff] [blame] | 530 | VPRINTK("ata%u: ENTER\n", ap->print_id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 531 | |
| 532 | /* hard-code chip #0 */ |
| 533 | mmio += PDC_CHIP0_OFS; |
| 534 | |
| 535 | i = pdc20621_ata_pkt(&qc->tf, qc->dev->devno, &pp->dimm_buf[0], portno); |
| 536 | |
| 537 | if (qc->tf.flags & ATA_TFLAG_LBA48) |
| 538 | i = pdc_prep_lba48(&qc->tf, &pp->dimm_buf[0], i); |
| 539 | else |
| 540 | i = pdc_prep_lba28(&qc->tf, &pp->dimm_buf[0], i); |
| 541 | |
| 542 | pdc_pkt_footer(&qc->tf, &pp->dimm_buf[0], i); |
| 543 | |
| 544 | /* copy three S/G tables and two packets to DIMM MMIO window */ |
| 545 | memcpy_toio(dimm_mmio + (portno * PDC_DIMM_WINDOW_STEP), |
| 546 | &pp->dimm_buf, PDC_DIMM_HEADER_SZ); |
| 547 | |
| 548 | /* force host FIFO dump */ |
| 549 | writel(0x00000001, mmio + PDC_20621_GENERAL_CTL); |
| 550 | |
| 551 | readl(dimm_mmio); /* MMIO PCI posting flush */ |
| 552 | |
| 553 | VPRINTK("ata pkt buf ofs %u, mmio copied\n", i); |
| 554 | } |
| 555 | |
| 556 | static void pdc20621_qc_prep(struct ata_queued_cmd *qc) |
| 557 | { |
| 558 | switch (qc->tf.protocol) { |
| 559 | case ATA_PROT_DMA: |
| 560 | pdc20621_dma_prep(qc); |
| 561 | break; |
| 562 | case ATA_PROT_NODATA: |
| 563 | pdc20621_nodata_prep(qc); |
| 564 | break; |
| 565 | default: |
| 566 | break; |
| 567 | } |
| 568 | } |
| 569 | |
| 570 | static void __pdc20621_push_hdma(struct ata_queued_cmd *qc, |
| 571 | unsigned int seq, |
| 572 | u32 pkt_ofs) |
| 573 | { |
| 574 | struct ata_port *ap = qc->ap; |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 575 | struct ata_host *host = ap->host; |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 576 | void __iomem *mmio = host->iomap[PDC_MMIO_BAR]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 577 | |
| 578 | /* hard-code chip #0 */ |
| 579 | mmio += PDC_CHIP0_OFS; |
| 580 | |
| 581 | writel(0x00000001, mmio + PDC_20621_SEQCTL + (seq * 4)); |
| 582 | readl(mmio + PDC_20621_SEQCTL + (seq * 4)); /* flush */ |
| 583 | |
| 584 | writel(pkt_ofs, mmio + PDC_HDMA_PKT_SUBMIT); |
| 585 | readl(mmio + PDC_HDMA_PKT_SUBMIT); /* flush */ |
| 586 | } |
| 587 | |
| 588 | static void pdc20621_push_hdma(struct ata_queued_cmd *qc, |
| 589 | unsigned int seq, |
| 590 | u32 pkt_ofs) |
| 591 | { |
| 592 | struct ata_port *ap = qc->ap; |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 593 | struct pdc_host_priv *pp = ap->host->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 594 | unsigned int idx = pp->hdma_prod & PDC_HDMA_Q_MASK; |
| 595 | |
| 596 | if (!pp->doing_hdma) { |
| 597 | __pdc20621_push_hdma(qc, seq, pkt_ofs); |
| 598 | pp->doing_hdma = 1; |
| 599 | return; |
| 600 | } |
| 601 | |
| 602 | pp->hdma[idx].qc = qc; |
| 603 | pp->hdma[idx].seq = seq; |
| 604 | pp->hdma[idx].pkt_ofs = pkt_ofs; |
| 605 | pp->hdma_prod++; |
| 606 | } |
| 607 | |
| 608 | static void pdc20621_pop_hdma(struct ata_queued_cmd *qc) |
| 609 | { |
| 610 | struct ata_port *ap = qc->ap; |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 611 | struct pdc_host_priv *pp = ap->host->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 612 | unsigned int idx = pp->hdma_cons & PDC_HDMA_Q_MASK; |
| 613 | |
| 614 | /* if nothing on queue, we're done */ |
| 615 | if (pp->hdma_prod == pp->hdma_cons) { |
| 616 | pp->doing_hdma = 0; |
| 617 | return; |
| 618 | } |
| 619 | |
| 620 | __pdc20621_push_hdma(pp->hdma[idx].qc, pp->hdma[idx].seq, |
| 621 | pp->hdma[idx].pkt_ofs); |
| 622 | pp->hdma_cons++; |
| 623 | } |
| 624 | |
| 625 | #ifdef ATA_VERBOSE_DEBUG |
| 626 | static void pdc20621_dump_hdma(struct ata_queued_cmd *qc) |
| 627 | { |
| 628 | struct ata_port *ap = qc->ap; |
| 629 | unsigned int port_no = ap->port_no; |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 630 | void __iomem *dimm_mmio = ap->host->iomap[PDC_DIMM_BAR]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 631 | |
| 632 | dimm_mmio += (port_no * PDC_DIMM_WINDOW_STEP); |
| 633 | dimm_mmio += PDC_DIMM_HOST_PKT; |
| 634 | |
| 635 | printk(KERN_ERR "HDMA[0] == 0x%08X\n", readl(dimm_mmio)); |
| 636 | printk(KERN_ERR "HDMA[1] == 0x%08X\n", readl(dimm_mmio + 4)); |
| 637 | printk(KERN_ERR "HDMA[2] == 0x%08X\n", readl(dimm_mmio + 8)); |
| 638 | printk(KERN_ERR "HDMA[3] == 0x%08X\n", readl(dimm_mmio + 12)); |
| 639 | } |
| 640 | #else |
| 641 | static inline void pdc20621_dump_hdma(struct ata_queued_cmd *qc) { } |
| 642 | #endif /* ATA_VERBOSE_DEBUG */ |
| 643 | |
| 644 | static void pdc20621_packet_start(struct ata_queued_cmd *qc) |
| 645 | { |
| 646 | struct ata_port *ap = qc->ap; |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 647 | struct ata_host *host = ap->host; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 648 | unsigned int port_no = ap->port_no; |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 649 | void __iomem *mmio = host->iomap[PDC_MMIO_BAR]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 650 | unsigned int rw = (qc->tf.flags & ATA_TFLAG_WRITE); |
| 651 | u8 seq = (u8) (port_no + 1); |
| 652 | unsigned int port_ofs; |
| 653 | |
| 654 | /* hard-code chip #0 */ |
| 655 | mmio += PDC_CHIP0_OFS; |
| 656 | |
Tejun Heo | 44877b4 | 2007-02-21 01:06:51 +0900 | [diff] [blame] | 657 | VPRINTK("ata%u: ENTER\n", ap->print_id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 658 | |
| 659 | wmb(); /* flush PRD, pkt writes */ |
| 660 | |
| 661 | port_ofs = PDC_20621_DIMM_BASE + (PDC_DIMM_WINDOW_STEP * port_no); |
| 662 | |
| 663 | /* if writing, we (1) DMA to DIMM, then (2) do ATA command */ |
| 664 | if (rw && qc->tf.protocol == ATA_PROT_DMA) { |
| 665 | seq += 4; |
| 666 | |
| 667 | pdc20621_dump_hdma(qc); |
| 668 | pdc20621_push_hdma(qc, seq, port_ofs + PDC_DIMM_HOST_PKT); |
| 669 | VPRINTK("queued ofs 0x%x (%u), seq %u\n", |
| 670 | port_ofs + PDC_DIMM_HOST_PKT, |
| 671 | port_ofs + PDC_DIMM_HOST_PKT, |
| 672 | seq); |
| 673 | } else { |
| 674 | writel(0x00000001, mmio + PDC_20621_SEQCTL + (seq * 4)); |
| 675 | readl(mmio + PDC_20621_SEQCTL + (seq * 4)); /* flush */ |
| 676 | |
| 677 | writel(port_ofs + PDC_DIMM_ATA_PKT, |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 678 | ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT); |
| 679 | readl(ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 680 | VPRINTK("submitted ofs 0x%x (%u), seq %u\n", |
| 681 | port_ofs + PDC_DIMM_ATA_PKT, |
| 682 | port_ofs + PDC_DIMM_ATA_PKT, |
| 683 | seq); |
| 684 | } |
| 685 | } |
| 686 | |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 687 | static unsigned int pdc20621_qc_issue(struct ata_queued_cmd *qc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 688 | { |
| 689 | switch (qc->tf.protocol) { |
| 690 | case ATA_PROT_DMA: |
| 691 | case ATA_PROT_NODATA: |
| 692 | pdc20621_packet_start(qc); |
| 693 | return 0; |
| 694 | |
Tejun Heo | 0dc3688 | 2007-12-18 16:34:43 -0500 | [diff] [blame] | 695 | case ATAPI_PROT_DMA: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 696 | BUG(); |
| 697 | break; |
| 698 | |
| 699 | default: |
| 700 | break; |
| 701 | } |
| 702 | |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 703 | return ata_sff_qc_issue(qc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 704 | } |
| 705 | |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 706 | static inline unsigned int pdc20621_host_intr(struct ata_port *ap, |
| 707 | struct ata_queued_cmd *qc, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 708 | unsigned int doing_hdma, |
Jeff Garzik | ea6ba10 | 2005-08-30 05:18:18 -0400 | [diff] [blame] | 709 | void __iomem *mmio) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 710 | { |
| 711 | unsigned int port_no = ap->port_no; |
| 712 | unsigned int port_ofs = |
| 713 | PDC_20621_DIMM_BASE + (PDC_DIMM_WINDOW_STEP * port_no); |
| 714 | u8 status; |
| 715 | unsigned int handled = 0; |
| 716 | |
| 717 | VPRINTK("ENTER\n"); |
| 718 | |
| 719 | if ((qc->tf.protocol == ATA_PROT_DMA) && /* read */ |
| 720 | (!(qc->tf.flags & ATA_TFLAG_WRITE))) { |
| 721 | |
| 722 | /* step two - DMA from DIMM to host */ |
| 723 | if (doing_hdma) { |
Tejun Heo | 44877b4 | 2007-02-21 01:06:51 +0900 | [diff] [blame] | 724 | VPRINTK("ata%u: read hdma, 0x%x 0x%x\n", ap->print_id, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 725 | readl(mmio + 0x104), readl(mmio + PDC_HDMA_CTLSTAT)); |
| 726 | /* get drive status; clear intr; complete txn */ |
Albert Lee | a22e2eb | 2005-12-05 15:38:02 +0800 | [diff] [blame] | 727 | qc->err_mask |= ac_err_mask(ata_wait_idle(ap)); |
| 728 | ata_qc_complete(qc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 729 | pdc20621_pop_hdma(qc); |
| 730 | } |
| 731 | |
| 732 | /* step one - exec ATA command */ |
| 733 | else { |
| 734 | u8 seq = (u8) (port_no + 1 + 4); |
Tejun Heo | 44877b4 | 2007-02-21 01:06:51 +0900 | [diff] [blame] | 735 | VPRINTK("ata%u: read ata, 0x%x 0x%x\n", ap->print_id, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 736 | readl(mmio + 0x104), readl(mmio + PDC_HDMA_CTLSTAT)); |
| 737 | |
| 738 | /* submit hdma pkt */ |
| 739 | pdc20621_dump_hdma(qc); |
| 740 | pdc20621_push_hdma(qc, seq, |
| 741 | port_ofs + PDC_DIMM_HOST_PKT); |
| 742 | } |
| 743 | handled = 1; |
| 744 | |
| 745 | } else if (qc->tf.protocol == ATA_PROT_DMA) { /* write */ |
| 746 | |
| 747 | /* step one - DMA from host to DIMM */ |
| 748 | if (doing_hdma) { |
| 749 | u8 seq = (u8) (port_no + 1); |
Tejun Heo | 44877b4 | 2007-02-21 01:06:51 +0900 | [diff] [blame] | 750 | VPRINTK("ata%u: write hdma, 0x%x 0x%x\n", ap->print_id, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 751 | readl(mmio + 0x104), readl(mmio + PDC_HDMA_CTLSTAT)); |
| 752 | |
| 753 | /* submit ata pkt */ |
| 754 | writel(0x00000001, mmio + PDC_20621_SEQCTL + (seq * 4)); |
| 755 | readl(mmio + PDC_20621_SEQCTL + (seq * 4)); |
| 756 | writel(port_ofs + PDC_DIMM_ATA_PKT, |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 757 | ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT); |
| 758 | readl(ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 759 | } |
| 760 | |
| 761 | /* step two - execute ATA command */ |
| 762 | else { |
Tejun Heo | 44877b4 | 2007-02-21 01:06:51 +0900 | [diff] [blame] | 763 | VPRINTK("ata%u: write ata, 0x%x 0x%x\n", ap->print_id, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 764 | readl(mmio + 0x104), readl(mmio + PDC_HDMA_CTLSTAT)); |
| 765 | /* get drive status; clear intr; complete txn */ |
Albert Lee | a22e2eb | 2005-12-05 15:38:02 +0800 | [diff] [blame] | 766 | qc->err_mask |= ac_err_mask(ata_wait_idle(ap)); |
| 767 | ata_qc_complete(qc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 768 | pdc20621_pop_hdma(qc); |
| 769 | } |
| 770 | handled = 1; |
| 771 | |
| 772 | /* command completion, but no data xfer */ |
| 773 | } else if (qc->tf.protocol == ATA_PROT_NODATA) { |
| 774 | |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 775 | status = ata_sff_busy_wait(ap, ATA_BUSY | ATA_DRQ, 1000); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 776 | DPRINTK("BUS_NODATA (drv_stat 0x%X)\n", status); |
Albert Lee | a22e2eb | 2005-12-05 15:38:02 +0800 | [diff] [blame] | 777 | qc->err_mask |= ac_err_mask(status); |
| 778 | ata_qc_complete(qc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 779 | handled = 1; |
| 780 | |
| 781 | } else { |
| 782 | ap->stats.idle_irq++; |
| 783 | } |
| 784 | |
| 785 | return handled; |
| 786 | } |
| 787 | |
| 788 | static void pdc20621_irq_clear(struct ata_port *ap) |
| 789 | { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 790 | struct ata_host *host = ap->host; |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 791 | void __iomem *mmio = host->iomap[PDC_MMIO_BAR]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 792 | |
| 793 | mmio += PDC_CHIP0_OFS; |
| 794 | |
| 795 | readl(mmio + PDC_20621_SEQMASK); |
| 796 | } |
| 797 | |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 798 | static irqreturn_t pdc20621_interrupt(int irq, void *dev_instance) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 799 | { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 800 | struct ata_host *host = dev_instance; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 801 | struct ata_port *ap; |
| 802 | u32 mask = 0; |
| 803 | unsigned int i, tmp, port_no; |
| 804 | unsigned int handled = 0; |
Jeff Garzik | ea6ba10 | 2005-08-30 05:18:18 -0400 | [diff] [blame] | 805 | void __iomem *mmio_base; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 806 | |
| 807 | VPRINTK("ENTER\n"); |
| 808 | |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 809 | if (!host || !host->iomap[PDC_MMIO_BAR]) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 810 | VPRINTK("QUICK EXIT\n"); |
| 811 | return IRQ_NONE; |
| 812 | } |
| 813 | |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 814 | mmio_base = host->iomap[PDC_MMIO_BAR]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 815 | |
| 816 | /* reading should also clear interrupts */ |
| 817 | mmio_base += PDC_CHIP0_OFS; |
| 818 | mask = readl(mmio_base + PDC_20621_SEQMASK); |
| 819 | VPRINTK("mask == 0x%x\n", mask); |
| 820 | |
| 821 | if (mask == 0xffffffff) { |
| 822 | VPRINTK("QUICK EXIT 2\n"); |
| 823 | return IRQ_NONE; |
| 824 | } |
| 825 | mask &= 0xffff; /* only 16 tags possible */ |
| 826 | if (!mask) { |
| 827 | VPRINTK("QUICK EXIT 3\n"); |
| 828 | return IRQ_NONE; |
| 829 | } |
| 830 | |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 831 | spin_lock(&host->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 832 | |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 833 | for (i = 1; i < 9; i++) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 834 | port_no = i - 1; |
| 835 | if (port_no > 3) |
| 836 | port_no -= 4; |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 837 | if (port_no >= host->n_ports) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 838 | ap = NULL; |
| 839 | else |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 840 | ap = host->ports[port_no]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 841 | tmp = mask & (1 << i); |
| 842 | VPRINTK("seq %u, port_no %u, ap %p, tmp %x\n", i, port_no, ap, tmp); |
Tejun Heo | c138950 | 2005-08-22 14:59:24 +0900 | [diff] [blame] | 843 | if (tmp && ap && |
Jeff Garzik | 029f546 | 2006-04-02 10:30:40 -0400 | [diff] [blame] | 844 | !(ap->flags & ATA_FLAG_DISABLED)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 845 | struct ata_queued_cmd *qc; |
| 846 | |
Tejun Heo | 9af5c9c | 2007-08-06 18:36:22 +0900 | [diff] [blame] | 847 | qc = ata_qc_from_tag(ap, ap->link.active_tag); |
Albert Lee | e50362e | 2005-09-27 17:39:50 +0800 | [diff] [blame] | 848 | if (qc && (!(qc->tf.flags & ATA_TFLAG_POLLING))) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 849 | handled += pdc20621_host_intr(ap, qc, (i > 4), |
| 850 | mmio_base); |
| 851 | } |
| 852 | } |
| 853 | |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 854 | spin_unlock(&host->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 855 | |
| 856 | VPRINTK("mask == 0x%x\n", mask); |
| 857 | |
| 858 | VPRINTK("EXIT\n"); |
| 859 | |
| 860 | return IRQ_RETVAL(handled); |
| 861 | } |
| 862 | |
Jeff Garzik | 67651ee | 2009-04-08 16:02:18 -0400 | [diff] [blame^] | 863 | static void pdc_freeze(struct ata_port *ap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 864 | { |
Jeff Garzik | 67651ee | 2009-04-08 16:02:18 -0400 | [diff] [blame^] | 865 | void __iomem *mmio = ap->ioaddr.cmd_addr; |
| 866 | u32 tmp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 867 | |
Jeff Garzik | 67651ee | 2009-04-08 16:02:18 -0400 | [diff] [blame^] | 868 | /* FIXME: if all 4 ATA engines are stopped, also stop HDMA engine */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 869 | |
Jeff Garzik | 67651ee | 2009-04-08 16:02:18 -0400 | [diff] [blame^] | 870 | tmp = readl(mmio + PDC_CTLSTAT); |
| 871 | tmp |= PDC_MASK_INT; |
| 872 | tmp &= ~PDC_DMA_ENABLE; |
| 873 | writel(tmp, mmio + PDC_CTLSTAT); |
| 874 | readl(mmio + PDC_CTLSTAT); /* flush */ |
| 875 | } |
Jeff Garzik | b8f6153 | 2005-08-25 22:01:20 -0400 | [diff] [blame] | 876 | |
Jeff Garzik | 67651ee | 2009-04-08 16:02:18 -0400 | [diff] [blame^] | 877 | static void pdc_thaw(struct ata_port *ap) |
| 878 | { |
| 879 | void __iomem *mmio = ap->ioaddr.cmd_addr; |
| 880 | void __iomem *mmio_base; |
| 881 | u32 tmp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 882 | |
Jeff Garzik | 67651ee | 2009-04-08 16:02:18 -0400 | [diff] [blame^] | 883 | /* FIXME: start HDMA engine, if zero ATA engines running */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 884 | |
Jeff Garzik | 67651ee | 2009-04-08 16:02:18 -0400 | [diff] [blame^] | 885 | /* reading SEQ mask register clears IRQ */ |
| 886 | mmio_base = ap->host->iomap[PDC_MMIO_BAR] + PDC_CHIP0_OFS; |
| 887 | readl(mmio_base + PDC_20621_SEQMASK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 888 | |
Jeff Garzik | 67651ee | 2009-04-08 16:02:18 -0400 | [diff] [blame^] | 889 | /* turn IRQ back on */ |
| 890 | tmp = readl(mmio + PDC_CTLSTAT); |
| 891 | tmp &= ~PDC_MASK_INT; |
| 892 | writel(tmp, mmio + PDC_CTLSTAT); |
| 893 | readl(mmio + PDC_CTLSTAT); /* flush */ |
| 894 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 895 | |
Jeff Garzik | 67651ee | 2009-04-08 16:02:18 -0400 | [diff] [blame^] | 896 | static void pdc_reset_port(struct ata_port *ap) |
| 897 | { |
| 898 | void __iomem *mmio = ap->ioaddr.cmd_addr + PDC_CTLSTAT; |
| 899 | unsigned int i; |
| 900 | u32 tmp; |
| 901 | |
| 902 | /* FIXME: handle HDMA copy engine */ |
| 903 | |
| 904 | for (i = 11; i > 0; i--) { |
| 905 | tmp = readl(mmio); |
| 906 | if (tmp & PDC_RESET) |
| 907 | break; |
| 908 | |
| 909 | udelay(100); |
| 910 | |
| 911 | tmp |= PDC_RESET; |
| 912 | writel(tmp, mmio); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 913 | } |
| 914 | |
Jeff Garzik | 67651ee | 2009-04-08 16:02:18 -0400 | [diff] [blame^] | 915 | tmp &= ~PDC_RESET; |
| 916 | writel(tmp, mmio); |
| 917 | readl(mmio); /* flush */ |
| 918 | } |
| 919 | |
| 920 | static int pdc_softreset(struct ata_link *link, unsigned int *class, |
| 921 | unsigned long deadline) |
| 922 | { |
| 923 | pdc_reset_port(link->ap); |
| 924 | return ata_sff_softreset(link, class, deadline); |
| 925 | } |
| 926 | |
| 927 | static void pdc_error_handler(struct ata_port *ap) |
| 928 | { |
| 929 | if (!(ap->pflags & ATA_PFLAG_FROZEN)) |
| 930 | pdc_reset_port(ap); |
| 931 | |
| 932 | ata_std_error_handler(ap); |
| 933 | } |
| 934 | |
| 935 | static void pdc_post_internal_cmd(struct ata_queued_cmd *qc) |
| 936 | { |
| 937 | struct ata_port *ap = qc->ap; |
| 938 | |
| 939 | /* make DMA engine forget about the failed command */ |
| 940 | if (qc->flags & ATA_QCFLAG_FAILED) |
| 941 | pdc_reset_port(ap); |
| 942 | } |
| 943 | |
| 944 | static int pdc_check_atapi_dma(struct ata_queued_cmd *qc) |
| 945 | { |
| 946 | u8 *scsicmd = qc->scsicmd->cmnd; |
| 947 | int pio = 1; /* atapi dma off by default */ |
| 948 | |
| 949 | /* Whitelist commands that may use DMA. */ |
| 950 | switch (scsicmd[0]) { |
| 951 | case WRITE_12: |
| 952 | case WRITE_10: |
| 953 | case WRITE_6: |
| 954 | case READ_12: |
| 955 | case READ_10: |
| 956 | case READ_6: |
| 957 | case 0xad: /* READ_DVD_STRUCTURE */ |
| 958 | case 0xbe: /* READ_CD */ |
| 959 | pio = 0; |
| 960 | } |
| 961 | /* -45150 (FFFF4FA2) to -1 (FFFFFFFF) shall use PIO mode */ |
| 962 | if (scsicmd[0] == WRITE_10) { |
| 963 | unsigned int lba = |
| 964 | (scsicmd[2] << 24) | |
| 965 | (scsicmd[3] << 16) | |
| 966 | (scsicmd[4] << 8) | |
| 967 | scsicmd[5]; |
| 968 | if (lba >= 0xFFFF4FA2) |
| 969 | pio = 1; |
| 970 | } |
| 971 | return pio; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 972 | } |
| 973 | |
Jeff Garzik | 057ace5 | 2005-10-22 14:27:05 -0400 | [diff] [blame] | 974 | static void pdc_tf_load_mmio(struct ata_port *ap, const struct ata_taskfile *tf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 975 | { |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 976 | WARN_ON(tf->protocol == ATA_PROT_DMA || |
| 977 | tf->protocol == ATA_PROT_NODATA); |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 978 | ata_sff_tf_load(ap, tf); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 979 | } |
| 980 | |
| 981 | |
Jeff Garzik | 057ace5 | 2005-10-22 14:27:05 -0400 | [diff] [blame] | 982 | static void pdc_exec_command_mmio(struct ata_port *ap, const struct ata_taskfile *tf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 983 | { |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 984 | WARN_ON(tf->protocol == ATA_PROT_DMA || |
| 985 | tf->protocol == ATA_PROT_NODATA); |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 986 | ata_sff_exec_command(ap, tf); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 987 | } |
| 988 | |
| 989 | |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 990 | static void pdc_sata_setup_port(struct ata_ioports *port, void __iomem *base) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 991 | { |
| 992 | port->cmd_addr = base; |
| 993 | port->data_addr = base; |
| 994 | port->feature_addr = |
| 995 | port->error_addr = base + 0x4; |
| 996 | port->nsect_addr = base + 0x8; |
| 997 | port->lbal_addr = base + 0xc; |
| 998 | port->lbam_addr = base + 0x10; |
| 999 | port->lbah_addr = base + 0x14; |
| 1000 | port->device_addr = base + 0x18; |
| 1001 | port->command_addr = |
| 1002 | port->status_addr = base + 0x1c; |
| 1003 | port->altstatus_addr = |
| 1004 | port->ctl_addr = base + 0x38; |
| 1005 | } |
| 1006 | |
| 1007 | |
| 1008 | #ifdef ATA_VERBOSE_DEBUG |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 1009 | static void pdc20621_get_from_dimm(struct ata_host *host, void *psource, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1010 | u32 offset, u32 size) |
| 1011 | { |
| 1012 | u32 window_size; |
| 1013 | u16 idx; |
| 1014 | u8 page_mask; |
| 1015 | long dist; |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 1016 | void __iomem *mmio = host->iomap[PDC_MMIO_BAR]; |
| 1017 | void __iomem *dimm_mmio = host->iomap[PDC_DIMM_BAR]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1018 | |
| 1019 | /* hard-code chip #0 */ |
| 1020 | mmio += PDC_CHIP0_OFS; |
| 1021 | |
Jeff Garzik | 8a60a07 | 2005-07-31 13:13:24 -0400 | [diff] [blame] | 1022 | page_mask = 0x00; |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 1023 | window_size = 0x2000 * 4; /* 32K byte uchar size */ |
Jeff Garzik | 8a60a07 | 2005-07-31 13:13:24 -0400 | [diff] [blame] | 1024 | idx = (u16) (offset / window_size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1025 | |
| 1026 | writel(0x01, mmio + PDC_GENERAL_CTLR); |
| 1027 | readl(mmio + PDC_GENERAL_CTLR); |
| 1028 | writel(((idx) << page_mask), mmio + PDC_DIMM_WINDOW_CTLR); |
| 1029 | readl(mmio + PDC_DIMM_WINDOW_CTLR); |
| 1030 | |
| 1031 | offset -= (idx * window_size); |
| 1032 | idx++; |
Jeff Garzik | 8a60a07 | 2005-07-31 13:13:24 -0400 | [diff] [blame] | 1033 | dist = ((long) (window_size - (offset + size))) >= 0 ? size : |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1034 | (long) (window_size - offset); |
Jeff Garzik | 8a60a07 | 2005-07-31 13:13:24 -0400 | [diff] [blame] | 1035 | memcpy_fromio((char *) psource, (char *) (dimm_mmio + offset / 4), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1036 | dist); |
| 1037 | |
Jeff Garzik | 8a60a07 | 2005-07-31 13:13:24 -0400 | [diff] [blame] | 1038 | psource += dist; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1039 | size -= dist; |
| 1040 | for (; (long) size >= (long) window_size ;) { |
| 1041 | writel(0x01, mmio + PDC_GENERAL_CTLR); |
| 1042 | readl(mmio + PDC_GENERAL_CTLR); |
| 1043 | writel(((idx) << page_mask), mmio + PDC_DIMM_WINDOW_CTLR); |
| 1044 | readl(mmio + PDC_DIMM_WINDOW_CTLR); |
Jeff Garzik | 8a60a07 | 2005-07-31 13:13:24 -0400 | [diff] [blame] | 1045 | memcpy_fromio((char *) psource, (char *) (dimm_mmio), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1046 | window_size / 4); |
| 1047 | psource += window_size; |
| 1048 | size -= window_size; |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 1049 | idx++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1050 | } |
| 1051 | |
| 1052 | if (size) { |
| 1053 | writel(0x01, mmio + PDC_GENERAL_CTLR); |
| 1054 | readl(mmio + PDC_GENERAL_CTLR); |
| 1055 | writel(((idx) << page_mask), mmio + PDC_DIMM_WINDOW_CTLR); |
| 1056 | readl(mmio + PDC_DIMM_WINDOW_CTLR); |
Jeff Garzik | 8a60a07 | 2005-07-31 13:13:24 -0400 | [diff] [blame] | 1057 | memcpy_fromio((char *) psource, (char *) (dimm_mmio), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1058 | size / 4); |
| 1059 | } |
| 1060 | } |
| 1061 | #endif |
| 1062 | |
| 1063 | |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 1064 | static void pdc20621_put_to_dimm(struct ata_host *host, void *psource, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1065 | u32 offset, u32 size) |
| 1066 | { |
| 1067 | u32 window_size; |
| 1068 | u16 idx; |
| 1069 | u8 page_mask; |
| 1070 | long dist; |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 1071 | void __iomem *mmio = host->iomap[PDC_MMIO_BAR]; |
| 1072 | void __iomem *dimm_mmio = host->iomap[PDC_DIMM_BAR]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1073 | |
Jeff Garzik | 8a60a07 | 2005-07-31 13:13:24 -0400 | [diff] [blame] | 1074 | /* hard-code chip #0 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1075 | mmio += PDC_CHIP0_OFS; |
| 1076 | |
Jeff Garzik | 8a60a07 | 2005-07-31 13:13:24 -0400 | [diff] [blame] | 1077 | page_mask = 0x00; |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 1078 | window_size = 0x2000 * 4; /* 32K byte uchar size */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1079 | idx = (u16) (offset / window_size); |
| 1080 | |
| 1081 | writel(((idx) << page_mask), mmio + PDC_DIMM_WINDOW_CTLR); |
| 1082 | readl(mmio + PDC_DIMM_WINDOW_CTLR); |
Jeff Garzik | 8a60a07 | 2005-07-31 13:13:24 -0400 | [diff] [blame] | 1083 | offset -= (idx * window_size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1084 | idx++; |
| 1085 | dist = ((long)(s32)(window_size - (offset + size))) >= 0 ? size : |
| 1086 | (long) (window_size - offset); |
Al Viro | a9afd7c | 2005-10-21 06:46:02 +0100 | [diff] [blame] | 1087 | memcpy_toio(dimm_mmio + offset / 4, psource, dist); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1088 | writel(0x01, mmio + PDC_GENERAL_CTLR); |
| 1089 | readl(mmio + PDC_GENERAL_CTLR); |
| 1090 | |
Jeff Garzik | 8a60a07 | 2005-07-31 13:13:24 -0400 | [diff] [blame] | 1091 | psource += dist; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1092 | size -= dist; |
| 1093 | for (; (long) size >= (long) window_size ;) { |
| 1094 | writel(((idx) << page_mask), mmio + PDC_DIMM_WINDOW_CTLR); |
| 1095 | readl(mmio + PDC_DIMM_WINDOW_CTLR); |
Al Viro | a9afd7c | 2005-10-21 06:46:02 +0100 | [diff] [blame] | 1096 | memcpy_toio(dimm_mmio, psource, window_size / 4); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1097 | writel(0x01, mmio + PDC_GENERAL_CTLR); |
| 1098 | readl(mmio + PDC_GENERAL_CTLR); |
| 1099 | psource += window_size; |
| 1100 | size -= window_size; |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 1101 | idx++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1102 | } |
Jeff Garzik | 8a60a07 | 2005-07-31 13:13:24 -0400 | [diff] [blame] | 1103 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1104 | if (size) { |
| 1105 | writel(((idx) << page_mask), mmio + PDC_DIMM_WINDOW_CTLR); |
| 1106 | readl(mmio + PDC_DIMM_WINDOW_CTLR); |
Al Viro | a9afd7c | 2005-10-21 06:46:02 +0100 | [diff] [blame] | 1107 | memcpy_toio(dimm_mmio, psource, size / 4); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1108 | writel(0x01, mmio + PDC_GENERAL_CTLR); |
| 1109 | readl(mmio + PDC_GENERAL_CTLR); |
| 1110 | } |
| 1111 | } |
| 1112 | |
| 1113 | |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 1114 | static unsigned int pdc20621_i2c_read(struct ata_host *host, u32 device, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1115 | u32 subaddr, u32 *pdata) |
| 1116 | { |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 1117 | void __iomem *mmio = host->iomap[PDC_MMIO_BAR]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1118 | u32 i2creg = 0; |
Jeff Garzik | 8a60a07 | 2005-07-31 13:13:24 -0400 | [diff] [blame] | 1119 | u32 status; |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 1120 | u32 count = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1121 | |
| 1122 | /* hard-code chip #0 */ |
| 1123 | mmio += PDC_CHIP0_OFS; |
| 1124 | |
| 1125 | i2creg |= device << 24; |
| 1126 | i2creg |= subaddr << 16; |
| 1127 | |
| 1128 | /* Set the device and subaddress */ |
Jeff Garzik | b2d46b6 | 2007-05-27 22:58:54 -0400 | [diff] [blame] | 1129 | writel(i2creg, mmio + PDC_I2C_ADDR_DATA); |
| 1130 | readl(mmio + PDC_I2C_ADDR_DATA); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1131 | |
| 1132 | /* Write Control to perform read operation, mask int */ |
Jeff Garzik | 8a60a07 | 2005-07-31 13:13:24 -0400 | [diff] [blame] | 1133 | writel(PDC_I2C_READ | PDC_I2C_START | PDC_I2C_MASK_INT, |
Jeff Garzik | b2d46b6 | 2007-05-27 22:58:54 -0400 | [diff] [blame] | 1134 | mmio + PDC_I2C_CONTROL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1135 | |
| 1136 | for (count = 0; count <= 1000; count ++) { |
Jeff Garzik | b2d46b6 | 2007-05-27 22:58:54 -0400 | [diff] [blame] | 1137 | status = readl(mmio + PDC_I2C_CONTROL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1138 | if (status & PDC_I2C_COMPLETE) { |
Jeff Garzik | b2d46b6 | 2007-05-27 22:58:54 -0400 | [diff] [blame] | 1139 | status = readl(mmio + PDC_I2C_ADDR_DATA); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1140 | break; |
| 1141 | } else if (count == 1000) |
| 1142 | return 0; |
| 1143 | } |
| 1144 | |
| 1145 | *pdata = (status >> 8) & 0x000000ff; |
Jeff Garzik | 8a60a07 | 2005-07-31 13:13:24 -0400 | [diff] [blame] | 1146 | return 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1147 | } |
| 1148 | |
| 1149 | |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 1150 | static int pdc20621_detect_dimm(struct ata_host *host) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1151 | { |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 1152 | u32 data = 0; |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 1153 | if (pdc20621_i2c_read(host, PDC_DIMM0_SPD_DEV_ADDRESS, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1154 | PDC_DIMM_SPD_SYSTEM_FREQ, &data)) { |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 1155 | if (data == 100) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1156 | return 100; |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 1157 | } else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1158 | return 0; |
Jeff Garzik | 8a60a07 | 2005-07-31 13:13:24 -0400 | [diff] [blame] | 1159 | |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 1160 | if (pdc20621_i2c_read(host, PDC_DIMM0_SPD_DEV_ADDRESS, 9, &data)) { |
Jeff Garzik | b447916 | 2007-10-25 20:47:30 -0400 | [diff] [blame] | 1161 | if (data <= 0x75) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1162 | return 133; |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 1163 | } else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1164 | return 0; |
Jeff Garzik | 8a60a07 | 2005-07-31 13:13:24 -0400 | [diff] [blame] | 1165 | |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 1166 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1167 | } |
| 1168 | |
| 1169 | |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 1170 | static int pdc20621_prog_dimm0(struct ata_host *host) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1171 | { |
| 1172 | u32 spd0[50]; |
| 1173 | u32 data = 0; |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 1174 | int size, i; |
| 1175 | u8 bdimmsize; |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 1176 | void __iomem *mmio = host->iomap[PDC_MMIO_BAR]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1177 | static const struct { |
| 1178 | unsigned int reg; |
| 1179 | unsigned int ofs; |
| 1180 | } pdc_i2c_read_data [] = { |
Jeff Garzik | 8a60a07 | 2005-07-31 13:13:24 -0400 | [diff] [blame] | 1181 | { PDC_DIMM_SPD_TYPE, 11 }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1182 | { PDC_DIMM_SPD_FRESH_RATE, 12 }, |
Jeff Garzik | 8a60a07 | 2005-07-31 13:13:24 -0400 | [diff] [blame] | 1183 | { PDC_DIMM_SPD_COLUMN_NUM, 4 }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1184 | { PDC_DIMM_SPD_ATTRIBUTE, 21 }, |
| 1185 | { PDC_DIMM_SPD_ROW_NUM, 3 }, |
| 1186 | { PDC_DIMM_SPD_BANK_NUM, 17 }, |
| 1187 | { PDC_DIMM_SPD_MODULE_ROW, 5 }, |
| 1188 | { PDC_DIMM_SPD_ROW_PRE_CHARGE, 27 }, |
| 1189 | { PDC_DIMM_SPD_ROW_ACTIVE_DELAY, 28 }, |
| 1190 | { PDC_DIMM_SPD_RAS_CAS_DELAY, 29 }, |
| 1191 | { PDC_DIMM_SPD_ACTIVE_PRECHARGE, 30 }, |
Jeff Garzik | 8a60a07 | 2005-07-31 13:13:24 -0400 | [diff] [blame] | 1192 | { PDC_DIMM_SPD_CAS_LATENCY, 18 }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1193 | }; |
| 1194 | |
| 1195 | /* hard-code chip #0 */ |
| 1196 | mmio += PDC_CHIP0_OFS; |
| 1197 | |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 1198 | for (i = 0; i < ARRAY_SIZE(pdc_i2c_read_data); i++) |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 1199 | pdc20621_i2c_read(host, PDC_DIMM0_SPD_DEV_ADDRESS, |
Jeff Garzik | 8a60a07 | 2005-07-31 13:13:24 -0400 | [diff] [blame] | 1200 | pdc_i2c_read_data[i].reg, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1201 | &spd0[pdc_i2c_read_data[i].ofs]); |
Jeff Garzik | 8a60a07 | 2005-07-31 13:13:24 -0400 | [diff] [blame] | 1202 | |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 1203 | data |= (spd0[4] - 8) | ((spd0[21] != 0) << 3) | ((spd0[3]-11) << 4); |
| 1204 | data |= ((spd0[17] / 4) << 6) | ((spd0[5] / 2) << 7) | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1205 | ((((spd0[27] + 9) / 10) - 1) << 8) ; |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 1206 | data |= (((((spd0[29] > spd0[28]) |
Jeff Garzik | 8a60a07 | 2005-07-31 13:13:24 -0400 | [diff] [blame] | 1207 | ? spd0[29] : spd0[28]) + 9) / 10) - 1) << 10; |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 1208 | data |= ((spd0[30] - spd0[29] + 9) / 10 - 2) << 12; |
Jeff Garzik | 8a60a07 | 2005-07-31 13:13:24 -0400 | [diff] [blame] | 1209 | |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 1210 | if (spd0[18] & 0x08) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1211 | data |= ((0x03) << 14); |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 1212 | else if (spd0[18] & 0x04) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1213 | data |= ((0x02) << 14); |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 1214 | else if (spd0[18] & 0x01) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1215 | data |= ((0x01) << 14); |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 1216 | else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1217 | data |= (0 << 14); |
| 1218 | |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 1219 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1220 | Calculate the size of bDIMMSize (power of 2) and |
| 1221 | merge the DIMM size by program start/end address. |
| 1222 | */ |
| 1223 | |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 1224 | bdimmsize = spd0[4] + (spd0[5] / 2) + spd0[3] + (spd0[17] / 2) + 3; |
| 1225 | size = (1 << bdimmsize) >> 20; /* size = xxx(MB) */ |
| 1226 | data |= (((size / 16) - 1) << 16); |
| 1227 | data |= (0 << 23); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1228 | data |= 8; |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 1229 | writel(data, mmio + PDC_DIMM0_CONTROL); |
Jeff Garzik | b2d46b6 | 2007-05-27 22:58:54 -0400 | [diff] [blame] | 1230 | readl(mmio + PDC_DIMM0_CONTROL); |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 1231 | return size; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1232 | } |
| 1233 | |
| 1234 | |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 1235 | static unsigned int pdc20621_prog_dimm_global(struct ata_host *host) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1236 | { |
| 1237 | u32 data, spd0; |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 1238 | int error, i; |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 1239 | void __iomem *mmio = host->iomap[PDC_MMIO_BAR]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1240 | |
| 1241 | /* hard-code chip #0 */ |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 1242 | mmio += PDC_CHIP0_OFS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1243 | |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 1244 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1245 | Set To Default : DIMM Module Global Control Register (0x022259F1) |
| 1246 | DIMM Arbitration Disable (bit 20) |
| 1247 | DIMM Data/Control Output Driving Selection (bit12 - bit15) |
| 1248 | Refresh Enable (bit 17) |
| 1249 | */ |
| 1250 | |
Jeff Garzik | 8a60a07 | 2005-07-31 13:13:24 -0400 | [diff] [blame] | 1251 | data = 0x022259F1; |
Jeff Garzik | b2d46b6 | 2007-05-27 22:58:54 -0400 | [diff] [blame] | 1252 | writel(data, mmio + PDC_SDRAM_CONTROL); |
| 1253 | readl(mmio + PDC_SDRAM_CONTROL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1254 | |
| 1255 | /* Turn on for ECC */ |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 1256 | pdc20621_i2c_read(host, PDC_DIMM0_SPD_DEV_ADDRESS, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1257 | PDC_DIMM_SPD_TYPE, &spd0); |
| 1258 | if (spd0 == 0x02) { |
| 1259 | data |= (0x01 << 16); |
Jeff Garzik | b2d46b6 | 2007-05-27 22:58:54 -0400 | [diff] [blame] | 1260 | writel(data, mmio + PDC_SDRAM_CONTROL); |
| 1261 | readl(mmio + PDC_SDRAM_CONTROL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1262 | printk(KERN_ERR "Local DIMM ECC Enabled\n"); |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 1263 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1264 | |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 1265 | /* DIMM Initialization Select/Enable (bit 18/19) */ |
| 1266 | data &= (~(1<<18)); |
| 1267 | data |= (1<<19); |
| 1268 | writel(data, mmio + PDC_SDRAM_CONTROL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1269 | |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 1270 | error = 1; |
| 1271 | for (i = 1; i <= 10; i++) { /* polling ~5 secs */ |
Jeff Garzik | b2d46b6 | 2007-05-27 22:58:54 -0400 | [diff] [blame] | 1272 | data = readl(mmio + PDC_SDRAM_CONTROL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1273 | if (!(data & (1<<19))) { |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 1274 | error = 0; |
| 1275 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1276 | } |
| 1277 | msleep(i*100); |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 1278 | } |
| 1279 | return error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1280 | } |
Jeff Garzik | 8a60a07 | 2005-07-31 13:13:24 -0400 | [diff] [blame] | 1281 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1282 | |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 1283 | static unsigned int pdc20621_dimm_init(struct ata_host *host) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1284 | { |
Jeff Garzik | 8a60a07 | 2005-07-31 13:13:24 -0400 | [diff] [blame] | 1285 | int speed, size, length; |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 1286 | u32 addr, spd0, pci_status; |
| 1287 | u32 tmp = 0; |
| 1288 | u32 time_period = 0; |
| 1289 | u32 tcount = 0; |
| 1290 | u32 ticks = 0; |
| 1291 | u32 clock = 0; |
| 1292 | u32 fparam = 0; |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 1293 | void __iomem *mmio = host->iomap[PDC_MMIO_BAR]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1294 | |
| 1295 | /* hard-code chip #0 */ |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 1296 | mmio += PDC_CHIP0_OFS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1297 | |
| 1298 | /* Initialize PLL based upon PCI Bus Frequency */ |
| 1299 | |
| 1300 | /* Initialize Time Period Register */ |
| 1301 | writel(0xffffffff, mmio + PDC_TIME_PERIOD); |
| 1302 | time_period = readl(mmio + PDC_TIME_PERIOD); |
| 1303 | VPRINTK("Time Period Register (0x40): 0x%x\n", time_period); |
| 1304 | |
| 1305 | /* Enable timer */ |
Jeff Garzik | b2d46b6 | 2007-05-27 22:58:54 -0400 | [diff] [blame] | 1306 | writel(PDC_TIMER_DEFAULT, mmio + PDC_TIME_CONTROL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1307 | readl(mmio + PDC_TIME_CONTROL); |
| 1308 | |
| 1309 | /* Wait 3 seconds */ |
| 1310 | msleep(3000); |
| 1311 | |
Jeff Garzik | 8a60a07 | 2005-07-31 13:13:24 -0400 | [diff] [blame] | 1312 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1313 | When timer is enabled, counter is decreased every internal |
| 1314 | clock cycle. |
| 1315 | */ |
| 1316 | |
| 1317 | tcount = readl(mmio + PDC_TIME_COUNTER); |
| 1318 | VPRINTK("Time Counter Register (0x44): 0x%x\n", tcount); |
| 1319 | |
Jeff Garzik | 8a60a07 | 2005-07-31 13:13:24 -0400 | [diff] [blame] | 1320 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1321 | If SX4 is on PCI-X bus, after 3 seconds, the timer counter |
| 1322 | register should be >= (0xffffffff - 3x10^8). |
| 1323 | */ |
Jeff Garzik | b447916 | 2007-10-25 20:47:30 -0400 | [diff] [blame] | 1324 | if (tcount >= PCI_X_TCOUNT) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1325 | ticks = (time_period - tcount); |
| 1326 | VPRINTK("Num counters 0x%x (%d)\n", ticks, ticks); |
Jeff Garzik | 8a60a07 | 2005-07-31 13:13:24 -0400 | [diff] [blame] | 1327 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1328 | clock = (ticks / 300000); |
| 1329 | VPRINTK("10 * Internal clk = 0x%x (%d)\n", clock, clock); |
Jeff Garzik | 8a60a07 | 2005-07-31 13:13:24 -0400 | [diff] [blame] | 1330 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1331 | clock = (clock * 33); |
| 1332 | VPRINTK("10 * Internal clk * 33 = 0x%x (%d)\n", clock, clock); |
| 1333 | |
| 1334 | /* PLL F Param (bit 22:16) */ |
| 1335 | fparam = (1400000 / clock) - 2; |
| 1336 | VPRINTK("PLL F Param: 0x%x (%d)\n", fparam, fparam); |
Jeff Garzik | 8a60a07 | 2005-07-31 13:13:24 -0400 | [diff] [blame] | 1337 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1338 | /* OD param = 0x2 (bit 31:30), R param = 0x5 (bit 29:25) */ |
| 1339 | pci_status = (0x8a001824 | (fparam << 16)); |
| 1340 | } else |
| 1341 | pci_status = PCI_PLL_INIT; |
| 1342 | |
| 1343 | /* Initialize PLL. */ |
| 1344 | VPRINTK("pci_status: 0x%x\n", pci_status); |
| 1345 | writel(pci_status, mmio + PDC_CTL_STATUS); |
| 1346 | readl(mmio + PDC_CTL_STATUS); |
| 1347 | |
Jeff Garzik | 8a60a07 | 2005-07-31 13:13:24 -0400 | [diff] [blame] | 1348 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1349 | Read SPD of DIMM by I2C interface, |
| 1350 | and program the DIMM Module Controller. |
| 1351 | */ |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 1352 | if (!(speed = pdc20621_detect_dimm(host))) { |
Jeff Garzik | 8a60a07 | 2005-07-31 13:13:24 -0400 | [diff] [blame] | 1353 | printk(KERN_ERR "Detect Local DIMM Fail\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1354 | return 1; /* DIMM error */ |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 1355 | } |
| 1356 | VPRINTK("Local DIMM Speed = %d\n", speed); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1357 | |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 1358 | /* Programming DIMM0 Module Control Register (index_CID0:80h) */ |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 1359 | size = pdc20621_prog_dimm0(host); |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 1360 | VPRINTK("Local DIMM Size = %dMB\n", size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1361 | |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 1362 | /* Programming DIMM Module Global Control Register (index_CID0:88h) */ |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 1363 | if (pdc20621_prog_dimm_global(host)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1364 | printk(KERN_ERR "Programming DIMM Module Global Control Register Fail\n"); |
| 1365 | return 1; |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 1366 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1367 | |
| 1368 | #ifdef ATA_VERBOSE_DEBUG |
| 1369 | { |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 1370 | u8 test_parttern1[40] = |
| 1371 | {0x55,0xAA,'P','r','o','m','i','s','e',' ', |
| 1372 | 'N','o','t',' ','Y','e','t',' ', |
| 1373 | 'D','e','f','i','n','e','d',' ', |
| 1374 | '1','.','1','0', |
| 1375 | '9','8','0','3','1','6','1','2',0,0}; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1376 | u8 test_parttern2[40] = {0}; |
| 1377 | |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 1378 | pdc20621_put_to_dimm(host, test_parttern2, 0x10040, 40); |
| 1379 | pdc20621_put_to_dimm(host, test_parttern2, 0x40, 40); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1380 | |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 1381 | pdc20621_put_to_dimm(host, test_parttern1, 0x10040, 40); |
| 1382 | pdc20621_get_from_dimm(host, test_parttern2, 0x40, 40); |
Jeff Garzik | 8a60a07 | 2005-07-31 13:13:24 -0400 | [diff] [blame] | 1383 | printk(KERN_ERR "%x, %x, %s\n", test_parttern2[0], |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1384 | test_parttern2[1], &(test_parttern2[2])); |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 1385 | pdc20621_get_from_dimm(host, test_parttern2, 0x10040, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1386 | 40); |
Jeff Garzik | 8a60a07 | 2005-07-31 13:13:24 -0400 | [diff] [blame] | 1387 | printk(KERN_ERR "%x, %x, %s\n", test_parttern2[0], |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1388 | test_parttern2[1], &(test_parttern2[2])); |
| 1389 | |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 1390 | pdc20621_put_to_dimm(host, test_parttern1, 0x40, 40); |
| 1391 | pdc20621_get_from_dimm(host, test_parttern2, 0x40, 40); |
Jeff Garzik | 8a60a07 | 2005-07-31 13:13:24 -0400 | [diff] [blame] | 1392 | printk(KERN_ERR "%x, %x, %s\n", test_parttern2[0], |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1393 | test_parttern2[1], &(test_parttern2[2])); |
| 1394 | } |
| 1395 | #endif |
| 1396 | |
| 1397 | /* ECC initiliazation. */ |
| 1398 | |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 1399 | pdc20621_i2c_read(host, PDC_DIMM0_SPD_DEV_ADDRESS, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1400 | PDC_DIMM_SPD_TYPE, &spd0); |
| 1401 | if (spd0 == 0x02) { |
| 1402 | VPRINTK("Start ECC initialization\n"); |
| 1403 | addr = 0; |
| 1404 | length = size * 1024 * 1024; |
| 1405 | while (addr < length) { |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 1406 | pdc20621_put_to_dimm(host, (void *) &tmp, addr, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1407 | sizeof(u32)); |
| 1408 | addr += sizeof(u32); |
| 1409 | } |
| 1410 | VPRINTK("Finish ECC initialization\n"); |
| 1411 | } |
| 1412 | return 0; |
| 1413 | } |
| 1414 | |
| 1415 | |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 1416 | static void pdc_20621_init(struct ata_host *host) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1417 | { |
| 1418 | u32 tmp; |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 1419 | void __iomem *mmio = host->iomap[PDC_MMIO_BAR]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1420 | |
| 1421 | /* hard-code chip #0 */ |
| 1422 | mmio += PDC_CHIP0_OFS; |
| 1423 | |
| 1424 | /* |
| 1425 | * Select page 0x40 for our 32k DIMM window |
| 1426 | */ |
| 1427 | tmp = readl(mmio + PDC_20621_DIMM_WINDOW) & 0xffff0000; |
| 1428 | tmp |= PDC_PAGE_WINDOW; /* page 40h; arbitrarily selected */ |
| 1429 | writel(tmp, mmio + PDC_20621_DIMM_WINDOW); |
| 1430 | |
| 1431 | /* |
| 1432 | * Reset Host DMA |
| 1433 | */ |
| 1434 | tmp = readl(mmio + PDC_HDMA_CTLSTAT); |
| 1435 | tmp |= PDC_RESET; |
| 1436 | writel(tmp, mmio + PDC_HDMA_CTLSTAT); |
| 1437 | readl(mmio + PDC_HDMA_CTLSTAT); /* flush */ |
| 1438 | |
| 1439 | udelay(10); |
| 1440 | |
| 1441 | tmp = readl(mmio + PDC_HDMA_CTLSTAT); |
| 1442 | tmp &= ~PDC_RESET; |
| 1443 | writel(tmp, mmio + PDC_HDMA_CTLSTAT); |
| 1444 | readl(mmio + PDC_HDMA_CTLSTAT); /* flush */ |
| 1445 | } |
| 1446 | |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 1447 | static int pdc_sata_init_one(struct pci_dev *pdev, |
| 1448 | const struct pci_device_id *ent) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1449 | { |
| 1450 | static int printed_version; |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 1451 | const struct ata_port_info *ppi[] = |
| 1452 | { &pdc_port_info[ent->driver_data], NULL }; |
| 1453 | struct ata_host *host; |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 1454 | struct pdc_host_priv *hpriv; |
Tejun Heo | cbcdd87 | 2007-08-18 13:14:55 +0900 | [diff] [blame] | 1455 | int i, rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1456 | |
| 1457 | if (!printed_version++) |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 1458 | dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1459 | |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 1460 | /* allocate host */ |
| 1461 | host = ata_host_alloc_pinfo(&pdev->dev, ppi, 4); |
| 1462 | hpriv = devm_kzalloc(&pdev->dev, sizeof(*hpriv), GFP_KERNEL); |
| 1463 | if (!host || !hpriv) |
| 1464 | return -ENOMEM; |
| 1465 | |
| 1466 | host->private_data = hpriv; |
| 1467 | |
| 1468 | /* acquire resources and fill host */ |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 1469 | rc = pcim_enable_device(pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1470 | if (rc) |
| 1471 | return rc; |
| 1472 | |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 1473 | rc = pcim_iomap_regions(pdev, (1 << PDC_MMIO_BAR) | (1 << PDC_DIMM_BAR), |
| 1474 | DRV_NAME); |
| 1475 | if (rc == -EBUSY) |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 1476 | pcim_pin_device(pdev); |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 1477 | if (rc) |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 1478 | return rc; |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 1479 | host->iomap = pcim_iomap_table(pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1480 | |
Tejun Heo | cbcdd87 | 2007-08-18 13:14:55 +0900 | [diff] [blame] | 1481 | for (i = 0; i < 4; i++) { |
| 1482 | struct ata_port *ap = host->ports[i]; |
| 1483 | void __iomem *base = host->iomap[PDC_MMIO_BAR] + PDC_CHIP0_OFS; |
| 1484 | unsigned int offset = 0x200 + i * 0x80; |
| 1485 | |
| 1486 | pdc_sata_setup_port(&ap->ioaddr, base + offset); |
| 1487 | |
| 1488 | ata_port_pbar_desc(ap, PDC_MMIO_BAR, -1, "mmio"); |
| 1489 | ata_port_pbar_desc(ap, PDC_DIMM_BAR, -1, "dimm"); |
| 1490 | ata_port_pbar_desc(ap, PDC_MMIO_BAR, offset, "port"); |
| 1491 | } |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 1492 | |
| 1493 | /* configure and activate */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1494 | rc = pci_set_dma_mask(pdev, ATA_DMA_MASK); |
| 1495 | if (rc) |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 1496 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1497 | rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK); |
| 1498 | if (rc) |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 1499 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1500 | |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 1501 | if (pdc20621_dimm_init(host)) |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 1502 | return -ENOMEM; |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 1503 | pdc_20621_init(host); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1504 | |
| 1505 | pci_set_master(pdev); |
Tejun Heo | 4447d35 | 2007-04-17 23:44:08 +0900 | [diff] [blame] | 1506 | return ata_host_activate(host, pdev->irq, pdc20621_interrupt, |
| 1507 | IRQF_SHARED, &pdc_sata_sht); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1508 | } |
| 1509 | |
| 1510 | |
| 1511 | static int __init pdc_sata_init(void) |
| 1512 | { |
Pavel Roskin | b788719 | 2006-08-10 18:13:18 +0900 | [diff] [blame] | 1513 | return pci_register_driver(&pdc_sata_pci_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1514 | } |
| 1515 | |
| 1516 | |
| 1517 | static void __exit pdc_sata_exit(void) |
| 1518 | { |
| 1519 | pci_unregister_driver(&pdc_sata_pci_driver); |
| 1520 | } |
| 1521 | |
| 1522 | |
| 1523 | MODULE_AUTHOR("Jeff Garzik"); |
| 1524 | MODULE_DESCRIPTION("Promise SATA low-level driver"); |
| 1525 | MODULE_LICENSE("GPL"); |
| 1526 | MODULE_DEVICE_TABLE(pci, pdc_sata_pci_tbl); |
| 1527 | MODULE_VERSION(DRV_VERSION); |
| 1528 | |
| 1529 | module_init(pdc_sata_init); |
| 1530 | module_exit(pdc_sata_exit); |