Channagoud Kadabi | ab88730 | 2015-02-20 10:55:58 -0800 | [diff] [blame] | 1 | /* Copyright (c) 2013-2014, The Linux Foundation. All rights reserved. |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 2 | * |
| 3 | * Redistribution and use in source and binary forms, with or without |
| 4 | * modification, are permitted provided that the following conditions are |
| 5 | * met: |
| 6 | * * Redistributions of source code must retain the above copyright |
| 7 | * notice, this list of conditions and the following disclaimer. |
| 8 | * * Redistributions in binary form must reproduce the above |
| 9 | * copyright notice, this list of conditions and the following |
| 10 | * disclaimer in the documentation and/or other materials provided |
| 11 | * with the distribution. |
| 12 | * * Neither the name of The Linux Foundation nor the names of its |
| 13 | * contributors may be used to endorse or promote products derived |
| 14 | * from this software without specific prior written permission. |
| 15 | * |
| 16 | * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED |
| 17 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 18 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT |
| 19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS |
| 20 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
| 23 | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| 24 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
| 25 | * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN |
| 26 | * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | */ |
| 28 | |
| 29 | #include <debug.h> |
| 30 | #include <reg.h> |
| 31 | #include <ufs_hw.h> |
| 32 | #include <utp.h> |
| 33 | #include <upiu.h> |
| 34 | #include <uic.h> |
| 35 | #include <ucs.h> |
| 36 | #include <dme.h> |
Sridhar Parasuram | 3c0b0b8 | 2014-09-25 18:06:51 -0700 | [diff] [blame] | 37 | #include <qgic.h> |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 38 | #include <string.h> |
| 39 | #include <platform/iomap.h> |
Sridhar Parasuram | 3c0b0b8 | 2014-09-25 18:06:51 -0700 | [diff] [blame] | 40 | #include <platform/irqs.h> |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 41 | #include <kernel/mutex.h> |
| 42 | |
| 43 | static int ufs_dev_init(struct ufs_dev *dev) |
| 44 | { |
| 45 | /* Init the mutexes. */ |
| 46 | mutex_init(&(dev->uic_data.uic_mutex)); |
| 47 | mutex_init(&(dev->utrd_data.bitmap_mutex)); |
| 48 | mutex_init(&(dev->utmrd_data.bitmap_mutex)); |
| 49 | |
| 50 | /* Initialize wait lists. */ |
| 51 | list_initialize(&(dev->utrd_data.list_head.list_node)); |
| 52 | list_initialize(&(dev->utmrd_data.list_head.list_node)); |
| 53 | |
| 54 | /* Initialize the bitmaps. */ |
| 55 | dev->utrd_data.bitmap = 0; |
| 56 | dev->utmrd_data.bitmap = 0; |
| 57 | |
| 58 | /* Initialize task ids. */ |
| 59 | dev->utrd_data.task_id = 0; |
| 60 | dev->utmrd_data.task_id = 0; |
| 61 | |
| 62 | /* Allocate memory for lists. */ |
| 63 | dev->utrd_data.list_base_addr = ufs_alloc_trans_req_list(); |
| 64 | dev->utmrd_data.list_base_addr = ufs_alloc_task_mgmt_req_list(); |
| 65 | |
| 66 | if (!dev->utrd_data.list_base_addr || !dev->utmrd_data.list_base_addr) |
| 67 | return -UFS_FAILURE; |
| 68 | |
| 69 | return UFS_SUCCESS; |
| 70 | } |
| 71 | |
| 72 | static void ufs_setup_req_lists(struct ufs_dev *dev) |
| 73 | { |
| 74 | uint32_t val; |
| 75 | |
| 76 | writel(dev->utmrd_data.list_base_addr, UFS_UTMRLBA(dev->base)); |
| 77 | writel(dev->utmrd_data.list_base_addr << 32, UFS_UTMRLBAU(dev->base)); |
| 78 | |
| 79 | writel(dev->utrd_data.list_base_addr, UFS_UTRLBA(dev->base)); |
| 80 | writel(dev->utrd_data.list_base_addr << 32, UFS_UTRLBAU(dev->base)); |
| 81 | |
| 82 | writel(1, UFS_UTMRLRSR(dev->base)); |
| 83 | writel(1, UFS_UTRLRSR(dev->base)); |
| 84 | |
| 85 | /* Enable the required irqs. */ |
Sridhar Parasuram | 7357e9b | 2014-10-01 12:19:11 -0700 | [diff] [blame] | 86 | val = UFS_IE_UEE | UFS_IE_UCCE ; |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 87 | ufs_irq_enable(dev, val); |
Sridhar Parasuram | 3c0b0b8 | 2014-09-25 18:06:51 -0700 | [diff] [blame] | 88 | // Change UFS_IRQ to level based |
| 89 | qgic_change_interrupt_cfg(UFS_IRQ, INTERRUPT_LVL_N_TO_N); |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 90 | } |
| 91 | |
Channagoud Kadabi | 5890d9b | 2015-01-29 13:04:04 -0800 | [diff] [blame] | 92 | void ufs_rpmb_init(struct ufs_dev *dev) |
Sridhar Parasuram | b66c9c3 | 2014-10-27 09:36:01 -0700 | [diff] [blame] | 93 | { |
| 94 | int ret = 0; |
| 95 | |
Channagoud Kadabi | 5890d9b | 2015-01-29 13:04:04 -0800 | [diff] [blame] | 96 | /* |
| 97 | * Perform request sense on lun to clear |
| 98 | * attention pending, other wise all the read/write |
| 99 | * operations would fail with check condition error |
| 100 | */ |
| 101 | ucs_do_request_sense(dev, UFS_WLUN_RPMB); |
| 102 | |
Sridhar Parasuram | b66c9c3 | 2014-10-27 09:36:01 -0700 | [diff] [blame] | 103 | // calculate the size of rpmb partition in sectors |
| 104 | ret = dme_read_unit_desc(dev, UFS_WLUN_RPMB); |
| 105 | if (ret != UFS_SUCCESS) |
| 106 | { |
| 107 | dprintf(CRITICAL, "UFS dme_read_unit_desc failed for RPMB Partition\n"); |
| 108 | return; |
| 109 | } |
| 110 | |
| 111 | // gets the number of rpmb frames allowed in a single UPIU commands |
Sridhar Parasuram | c02d107 | 2014-11-06 12:55:42 -0800 | [diff] [blame] | 112 | ret = dme_read_geo_desc(dev); |
Sridhar Parasuram | b66c9c3 | 2014-10-27 09:36:01 -0700 | [diff] [blame] | 113 | if (ret != UFS_SUCCESS) |
| 114 | { |
| 115 | dprintf(CRITICAL, "UFS dme_read_geo_desc failed for RPMB Partition\n"); |
| 116 | return; |
| 117 | } |
| 118 | #ifdef DEBUG_UFS |
| 119 | dprintf(INFO, "RPMB: Logical Block Count: 0x%x\n", dev->rpmb_num_blocks); |
| 120 | dprintf(INFO, "RPMB: RPMB Read Write Size: 0x%x\n", dev->rpmb_rw_size); |
| 121 | #endif |
| 122 | } |
| 123 | |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 124 | int ufs_read(struct ufs_dev* dev, uint64_t start_lba, addr_t buffer, uint32_t num_blocks) |
| 125 | { |
| 126 | struct scsi_rdwr_req req; |
| 127 | int ret; |
| 128 | |
| 129 | req.data_buffer_base = buffer; |
Sundarajan Srinivasan | 332ce6a | 2013-12-04 17:27:46 -0800 | [diff] [blame] | 130 | req.lun = dev->current_lun; |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 131 | req.num_blocks = num_blocks; |
| 132 | req.start_lba = start_lba / dev->block_size; |
| 133 | |
| 134 | ret = ucs_do_scsi_read(dev, &req); |
| 135 | if (ret) |
| 136 | { |
| 137 | dprintf(CRITICAL, "UFS read failed.\n"); |
Sundarajan Srinivasan | 2fcaa98 | 2013-10-31 17:44:02 -0700 | [diff] [blame] | 138 | ufs_dump_hc_registers(dev); |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 139 | } |
| 140 | |
| 141 | return ret; |
| 142 | } |
| 143 | |
| 144 | int ufs_write(struct ufs_dev* dev, uint64_t start_lba, addr_t buffer, uint32_t num_blocks) |
| 145 | { |
| 146 | struct scsi_rdwr_req req; |
| 147 | int ret; |
| 148 | |
| 149 | req.data_buffer_base = buffer; |
Sundarajan Srinivasan | 332ce6a | 2013-12-04 17:27:46 -0800 | [diff] [blame] | 150 | req.lun = dev->current_lun; |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 151 | req.num_blocks = num_blocks; |
| 152 | req.start_lba = start_lba / dev->block_size; |
| 153 | |
| 154 | ret = ucs_do_scsi_write(dev, &req); |
| 155 | if (ret) |
| 156 | { |
| 157 | dprintf(CRITICAL, "UFS write failed.\n"); |
Sundarajan Srinivasan | 2fcaa98 | 2013-10-31 17:44:02 -0700 | [diff] [blame] | 158 | ufs_dump_hc_registers(dev); |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 159 | } |
| 160 | |
| 161 | return ret; |
| 162 | } |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 163 | |
Sundarajan Srinivasan | 54380a3 | 2013-10-25 17:38:38 -0700 | [diff] [blame] | 164 | int ufs_erase(struct ufs_dev* dev, uint64_t start_lba, uint32_t num_blocks) |
| 165 | { |
| 166 | struct scsi_unmap_req req; |
| 167 | int ret; |
| 168 | |
| 169 | req.lun = dev->current_lun; |
| 170 | req.start_lba = start_lba / dev->block_size; |
| 171 | req.num_blocks = num_blocks; |
| 172 | |
| 173 | ret = ucs_do_scsi_unmap(dev, &req); |
| 174 | if(ret) |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 175 | { |
Sundarajan Srinivasan | 54380a3 | 2013-10-25 17:38:38 -0700 | [diff] [blame] | 176 | dprintf(CRITICAL, "UFS erase failed \n"); |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 177 | } |
Channagoud Kadabi | ab88730 | 2015-02-20 10:55:58 -0800 | [diff] [blame] | 178 | |
Sundarajan Srinivasan | 54380a3 | 2013-10-25 17:38:38 -0700 | [diff] [blame] | 179 | return ret; |
| 180 | } |
| 181 | |
| 182 | uint64_t ufs_get_dev_capacity(struct ufs_dev* dev) |
| 183 | { |
Sundarajan Srinivasan | 332ce6a | 2013-12-04 17:27:46 -0800 | [diff] [blame] | 184 | uint64_t capacity; |
| 185 | uint8_t lun = dev->current_lun; |
| 186 | |
| 187 | capacity = dev->lun_cfg[lun].logical_blk_cnt * dev->block_size; |
| 188 | |
| 189 | return capacity; |
Sundarajan Srinivasan | 54380a3 | 2013-10-25 17:38:38 -0700 | [diff] [blame] | 190 | } |
| 191 | |
| 192 | uint32_t ufs_get_erase_blk_size(struct ufs_dev* dev) |
| 193 | { |
Sundarajan Srinivasan | 332ce6a | 2013-12-04 17:27:46 -0800 | [diff] [blame] | 194 | uint32_t erase_blk_size; |
| 195 | uint8_t lun = dev->current_lun; |
| 196 | |
| 197 | erase_blk_size = dev->lun_cfg[lun].erase_blk_size; |
| 198 | |
| 199 | return erase_blk_size; |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 200 | } |
| 201 | |
| 202 | uint32_t ufs_get_serial_num(struct ufs_dev* dev) |
| 203 | { |
| 204 | int ret; |
| 205 | |
| 206 | ret = dme_read_device_desc(dev); |
| 207 | if (ret) |
| 208 | { |
| 209 | dprintf(CRITICAL, "UFS get serial number failed.\n"); |
Sundarajan Srinivasan | 2fcaa98 | 2013-10-31 17:44:02 -0700 | [diff] [blame] | 210 | ufs_dump_hc_registers(dev); |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 211 | } |
| 212 | |
| 213 | return dev->serial_num; |
| 214 | } |
| 215 | |
| 216 | uint32_t ufs_get_page_size(struct ufs_dev* dev) |
| 217 | { |
| 218 | return dev->block_size; |
| 219 | } |
| 220 | |
Sundarajan Srinivasan | 332ce6a | 2013-12-04 17:27:46 -0800 | [diff] [blame] | 221 | uint8_t ufs_get_num_of_luns(struct ufs_dev* dev) |
| 222 | { |
| 223 | return dev->num_lus; |
| 224 | } |
| 225 | |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 226 | int ufs_init(struct ufs_dev *dev) |
| 227 | { |
| 228 | uint32_t ret = UFS_SUCCESS; |
Sundarajan Srinivasan | 332ce6a | 2013-12-04 17:27:46 -0800 | [diff] [blame] | 229 | uint8_t lun = 0; |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 230 | |
| 231 | dev->block_size = 4096; |
| 232 | |
| 233 | /* Init dev struct. */ |
| 234 | ret = ufs_dev_init(dev); |
| 235 | if (ret != UFS_SUCCESS) |
| 236 | { |
Sundarajan Srinivasan | 2fcaa98 | 2013-10-31 17:44:02 -0700 | [diff] [blame] | 237 | dprintf(CRITICAL, "UFS dev_init failed\n"); |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 238 | goto ufs_init_err; |
| 239 | } |
| 240 | |
| 241 | /* Perform Data link init. */ |
| 242 | ret = uic_init(dev); |
| 243 | if (ret != UFS_SUCCESS) |
| 244 | { |
Sundarajan Srinivasan | 2fcaa98 | 2013-10-31 17:44:02 -0700 | [diff] [blame] | 245 | dprintf(CRITICAL, "UFS uic_init failed\n"); |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 246 | goto ufs_init_err; |
| 247 | } |
| 248 | |
| 249 | /* Setup request lists. */ |
| 250 | ufs_setup_req_lists(dev); |
| 251 | |
| 252 | /* Send NOP to check if device UTP layer is ready. */ |
| 253 | ret = dme_send_nop_query(dev); |
| 254 | if (ret != UFS_SUCCESS) |
| 255 | { |
Sundarajan Srinivasan | 2fcaa98 | 2013-10-31 17:44:02 -0700 | [diff] [blame] | 256 | dprintf(CRITICAL, "UFS dme_send_nop_query failed\n"); |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 257 | goto ufs_init_err; |
| 258 | } |
| 259 | |
| 260 | ret = dme_set_fdeviceinit(dev); |
Sundarajan Srinivasan | 54380a3 | 2013-10-25 17:38:38 -0700 | [diff] [blame] | 261 | if (ret != UFS_SUCCESS) |
| 262 | { |
Sundarajan Srinivasan | 2fcaa98 | 2013-10-31 17:44:02 -0700 | [diff] [blame] | 263 | dprintf(CRITICAL, "UFS dme_set_fdeviceinit failed\n"); |
Sundarajan Srinivasan | 54380a3 | 2013-10-25 17:38:38 -0700 | [diff] [blame] | 264 | goto ufs_init_err; |
| 265 | } |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 266 | |
| 267 | ret = ucs_scsi_send_inquiry(dev); |
Sundarajan Srinivasan | 54380a3 | 2013-10-25 17:38:38 -0700 | [diff] [blame] | 268 | if (ret != UFS_SUCCESS) |
| 269 | { |
Sundarajan Srinivasan | 2fcaa98 | 2013-10-31 17:44:02 -0700 | [diff] [blame] | 270 | dprintf(CRITICAL, "UFS ucs_scsi_send_inquiry failed\n"); |
Sundarajan Srinivasan | 54380a3 | 2013-10-25 17:38:38 -0700 | [diff] [blame] | 271 | goto ufs_init_err; |
| 272 | } |
| 273 | |
Sundarajan Srinivasan | 332ce6a | 2013-12-04 17:27:46 -0800 | [diff] [blame] | 274 | ret = dme_read_device_desc(dev); |
Sundarajan Srinivasan | 54380a3 | 2013-10-25 17:38:38 -0700 | [diff] [blame] | 275 | if (ret != UFS_SUCCESS) |
| 276 | { |
Sundarajan Srinivasan | 332ce6a | 2013-12-04 17:27:46 -0800 | [diff] [blame] | 277 | dprintf(CRITICAL, "dme_read_dev_desc read failed\n"); |
Sundarajan Srinivasan | 54380a3 | 2013-10-25 17:38:38 -0700 | [diff] [blame] | 278 | goto ufs_init_err; |
| 279 | } |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 280 | |
Sundarajan Srinivasan | 332ce6a | 2013-12-04 17:27:46 -0800 | [diff] [blame] | 281 | |
| 282 | for(lun=0; lun < dev->num_lus; lun++) |
| 283 | { |
| 284 | ret = dme_read_unit_desc(dev, lun); |
| 285 | if (ret != UFS_SUCCESS) |
| 286 | { |
| 287 | dprintf(CRITICAL, "UFS dme_read_unit_desc failed\n"); |
| 288 | goto ufs_init_err; |
| 289 | } |
| 290 | } |
| 291 | |
Sundarajan Srinivasan | 2fcaa98 | 2013-10-31 17:44:02 -0700 | [diff] [blame] | 292 | dprintf(CRITICAL,"UFS init success\n"); |
| 293 | |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 294 | ufs_init_err: |
Sundarajan Srinivasan | 2fcaa98 | 2013-10-31 17:44:02 -0700 | [diff] [blame] | 295 | |
| 296 | if(ret != UFS_SUCCESS) |
| 297 | { |
| 298 | ufs_dump_hc_registers(dev); |
| 299 | } |
| 300 | |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 301 | return ret; |
| 302 | } |
Sundarajan Srinivasan | 2fcaa98 | 2013-10-31 17:44:02 -0700 | [diff] [blame] | 303 | |
Sridhar Parasuram | 9ab2481 | 2014-10-01 10:51:23 -0700 | [diff] [blame] | 304 | void ufs_dump_is_register(struct ufs_dev *dev) |
| 305 | { |
| 306 | uint32_t base = dev->base; |
| 307 | dprintf(CRITICAL,"UFS_IS 0x%x\n",readl(UFS_IS(base))); |
| 308 | } |
| 309 | |
Sundarajan Srinivasan | 2fcaa98 | 2013-10-31 17:44:02 -0700 | [diff] [blame] | 310 | void ufs_dump_hc_registers(struct ufs_dev *dev) |
| 311 | { |
| 312 | uint32_t base = dev->base; |
| 313 | |
| 314 | dprintf(CRITICAL,"------Host controller register dump ---------\n"); |
| 315 | dprintf(CRITICAL,"UFS_UECPA 0x%x\n",readl(UFS_UECPA(base))); |
| 316 | dprintf(CRITICAL,"UFS_UECDL 0x%x\n",readl(UFS_UECDL(base))); |
| 317 | dprintf(CRITICAL,"UFS_UECN 0x%x\n", readl(UFS_UECN(base))); |
| 318 | dprintf(CRITICAL,"UFS_UECT 0x%x\n",readl(UFS_UECT(base))); |
| 319 | dprintf(CRITICAL,"UFS_UECDME 0x%x\n",readl(UFS_UECDME(base))); |
| 320 | dprintf(CRITICAL,"UFS_HCS 0x%x\n", readl(UFS_HCS(base))); |
| 321 | dprintf(CRITICAL,"-----------End--------------------------------\n"); |
| 322 | } |