Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 1 | /* Copyright (c) 2013, The Linux Foundation. All rights reserved. |
| 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> |
| 37 | #include <string.h> |
| 38 | #include <platform/iomap.h> |
| 39 | #include <kernel/mutex.h> |
| 40 | |
| 41 | static int ufs_dev_init(struct ufs_dev *dev) |
| 42 | { |
| 43 | /* Init the mutexes. */ |
| 44 | mutex_init(&(dev->uic_data.uic_mutex)); |
| 45 | mutex_init(&(dev->utrd_data.bitmap_mutex)); |
| 46 | mutex_init(&(dev->utmrd_data.bitmap_mutex)); |
| 47 | |
| 48 | /* Initialize wait lists. */ |
| 49 | list_initialize(&(dev->utrd_data.list_head.list_node)); |
| 50 | list_initialize(&(dev->utmrd_data.list_head.list_node)); |
| 51 | |
| 52 | /* Initialize the bitmaps. */ |
| 53 | dev->utrd_data.bitmap = 0; |
| 54 | dev->utmrd_data.bitmap = 0; |
| 55 | |
| 56 | /* Initialize task ids. */ |
| 57 | dev->utrd_data.task_id = 0; |
| 58 | dev->utmrd_data.task_id = 0; |
| 59 | |
| 60 | /* Allocate memory for lists. */ |
| 61 | dev->utrd_data.list_base_addr = ufs_alloc_trans_req_list(); |
| 62 | dev->utmrd_data.list_base_addr = ufs_alloc_task_mgmt_req_list(); |
| 63 | |
| 64 | if (!dev->utrd_data.list_base_addr || !dev->utmrd_data.list_base_addr) |
| 65 | return -UFS_FAILURE; |
| 66 | |
| 67 | return UFS_SUCCESS; |
| 68 | } |
| 69 | |
| 70 | static void ufs_setup_req_lists(struct ufs_dev *dev) |
| 71 | { |
| 72 | uint32_t val; |
| 73 | |
| 74 | writel(dev->utmrd_data.list_base_addr, UFS_UTMRLBA(dev->base)); |
| 75 | writel(dev->utmrd_data.list_base_addr << 32, UFS_UTMRLBAU(dev->base)); |
| 76 | |
| 77 | writel(dev->utrd_data.list_base_addr, UFS_UTRLBA(dev->base)); |
| 78 | writel(dev->utrd_data.list_base_addr << 32, UFS_UTRLBAU(dev->base)); |
| 79 | |
| 80 | writel(1, UFS_UTMRLRSR(dev->base)); |
| 81 | writel(1, UFS_UTRLRSR(dev->base)); |
| 82 | |
| 83 | /* Enable the required irqs. */ |
| 84 | val = UFS_IE_UTRCE | UFS_IE_UEE | UFS_IE_UTMRCE | UFS_IE_UCCE ; |
| 85 | ufs_irq_enable(dev, val); |
| 86 | } |
| 87 | |
| 88 | int ufs_read(struct ufs_dev* dev, uint64_t start_lba, addr_t buffer, uint32_t num_blocks) |
| 89 | { |
| 90 | struct scsi_rdwr_req req; |
| 91 | int ret; |
| 92 | |
| 93 | req.data_buffer_base = buffer; |
Sundarajan Srinivasan | 332ce6a | 2013-12-04 17:27:46 -0800 | [diff] [blame^] | 94 | req.lun = dev->current_lun; |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 95 | req.num_blocks = num_blocks; |
| 96 | req.start_lba = start_lba / dev->block_size; |
| 97 | |
| 98 | ret = ucs_do_scsi_read(dev, &req); |
| 99 | if (ret) |
| 100 | { |
| 101 | dprintf(CRITICAL, "UFS read failed.\n"); |
Sundarajan Srinivasan | 2fcaa98 | 2013-10-31 17:44:02 -0700 | [diff] [blame] | 102 | ufs_dump_hc_registers(dev); |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 103 | } |
| 104 | |
| 105 | return ret; |
| 106 | } |
| 107 | |
| 108 | int ufs_write(struct ufs_dev* dev, uint64_t start_lba, addr_t buffer, uint32_t num_blocks) |
| 109 | { |
| 110 | struct scsi_rdwr_req req; |
| 111 | int ret; |
| 112 | |
| 113 | req.data_buffer_base = buffer; |
Sundarajan Srinivasan | 332ce6a | 2013-12-04 17:27:46 -0800 | [diff] [blame^] | 114 | req.lun = dev->current_lun; |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 115 | req.num_blocks = num_blocks; |
| 116 | req.start_lba = start_lba / dev->block_size; |
| 117 | |
| 118 | ret = ucs_do_scsi_write(dev, &req); |
| 119 | if (ret) |
| 120 | { |
| 121 | dprintf(CRITICAL, "UFS write failed.\n"); |
Sundarajan Srinivasan | 2fcaa98 | 2013-10-31 17:44:02 -0700 | [diff] [blame] | 122 | ufs_dump_hc_registers(dev); |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 123 | } |
| 124 | |
| 125 | return ret; |
| 126 | } |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 127 | |
Sundarajan Srinivasan | 54380a3 | 2013-10-25 17:38:38 -0700 | [diff] [blame] | 128 | int ufs_erase(struct ufs_dev* dev, uint64_t start_lba, uint32_t num_blocks) |
| 129 | { |
| 130 | struct scsi_unmap_req req; |
| 131 | int ret; |
| 132 | |
| 133 | req.lun = dev->current_lun; |
| 134 | req.start_lba = start_lba / dev->block_size; |
| 135 | req.num_blocks = num_blocks; |
| 136 | |
| 137 | ret = ucs_do_scsi_unmap(dev, &req); |
| 138 | if(ret) |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 139 | { |
Sundarajan Srinivasan | 54380a3 | 2013-10-25 17:38:38 -0700 | [diff] [blame] | 140 | dprintf(CRITICAL, "UFS erase failed \n"); |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 141 | } |
| 142 | |
Sundarajan Srinivasan | 54380a3 | 2013-10-25 17:38:38 -0700 | [diff] [blame] | 143 | return ret; |
| 144 | } |
| 145 | |
| 146 | uint64_t ufs_get_dev_capacity(struct ufs_dev* dev) |
| 147 | { |
Sundarajan Srinivasan | 332ce6a | 2013-12-04 17:27:46 -0800 | [diff] [blame^] | 148 | uint64_t capacity; |
| 149 | uint8_t lun = dev->current_lun; |
| 150 | |
| 151 | capacity = dev->lun_cfg[lun].logical_blk_cnt * dev->block_size; |
| 152 | |
| 153 | return capacity; |
Sundarajan Srinivasan | 54380a3 | 2013-10-25 17:38:38 -0700 | [diff] [blame] | 154 | } |
| 155 | |
| 156 | uint32_t ufs_get_erase_blk_size(struct ufs_dev* dev) |
| 157 | { |
Sundarajan Srinivasan | 332ce6a | 2013-12-04 17:27:46 -0800 | [diff] [blame^] | 158 | uint32_t erase_blk_size; |
| 159 | uint8_t lun = dev->current_lun; |
| 160 | |
| 161 | erase_blk_size = dev->lun_cfg[lun].erase_blk_size; |
| 162 | |
| 163 | return erase_blk_size; |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 164 | } |
| 165 | |
| 166 | uint32_t ufs_get_serial_num(struct ufs_dev* dev) |
| 167 | { |
| 168 | int ret; |
| 169 | |
| 170 | ret = dme_read_device_desc(dev); |
| 171 | if (ret) |
| 172 | { |
| 173 | dprintf(CRITICAL, "UFS get serial number failed.\n"); |
Sundarajan Srinivasan | 2fcaa98 | 2013-10-31 17:44:02 -0700 | [diff] [blame] | 174 | ufs_dump_hc_registers(dev); |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 175 | } |
| 176 | |
| 177 | return dev->serial_num; |
| 178 | } |
| 179 | |
| 180 | uint32_t ufs_get_page_size(struct ufs_dev* dev) |
| 181 | { |
| 182 | return dev->block_size; |
| 183 | } |
| 184 | |
Sundarajan Srinivasan | 332ce6a | 2013-12-04 17:27:46 -0800 | [diff] [blame^] | 185 | uint8_t ufs_get_num_of_luns(struct ufs_dev* dev) |
| 186 | { |
| 187 | return dev->num_lus; |
| 188 | } |
| 189 | |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 190 | int ufs_init(struct ufs_dev *dev) |
| 191 | { |
| 192 | uint32_t ret = UFS_SUCCESS; |
| 193 | uint64_t cap; |
Sundarajan Srinivasan | 332ce6a | 2013-12-04 17:27:46 -0800 | [diff] [blame^] | 194 | uint8_t lun = 0; |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 195 | |
| 196 | dev->block_size = 4096; |
| 197 | |
| 198 | /* Init dev struct. */ |
| 199 | ret = ufs_dev_init(dev); |
| 200 | if (ret != UFS_SUCCESS) |
| 201 | { |
Sundarajan Srinivasan | 2fcaa98 | 2013-10-31 17:44:02 -0700 | [diff] [blame] | 202 | dprintf(CRITICAL, "UFS dev_init failed\n"); |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 203 | goto ufs_init_err; |
| 204 | } |
| 205 | |
| 206 | /* Perform Data link init. */ |
| 207 | ret = uic_init(dev); |
| 208 | if (ret != UFS_SUCCESS) |
| 209 | { |
Sundarajan Srinivasan | 2fcaa98 | 2013-10-31 17:44:02 -0700 | [diff] [blame] | 210 | dprintf(CRITICAL, "UFS uic_init failed\n"); |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 211 | goto ufs_init_err; |
| 212 | } |
| 213 | |
| 214 | /* Setup request lists. */ |
| 215 | ufs_setup_req_lists(dev); |
| 216 | |
| 217 | /* Send NOP to check if device UTP layer is ready. */ |
| 218 | ret = dme_send_nop_query(dev); |
| 219 | if (ret != UFS_SUCCESS) |
| 220 | { |
Sundarajan Srinivasan | 2fcaa98 | 2013-10-31 17:44:02 -0700 | [diff] [blame] | 221 | dprintf(CRITICAL, "UFS dme_send_nop_query failed\n"); |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 222 | goto ufs_init_err; |
| 223 | } |
| 224 | |
| 225 | ret = dme_set_fdeviceinit(dev); |
Sundarajan Srinivasan | 54380a3 | 2013-10-25 17:38:38 -0700 | [diff] [blame] | 226 | if (ret != UFS_SUCCESS) |
| 227 | { |
Sundarajan Srinivasan | 2fcaa98 | 2013-10-31 17:44:02 -0700 | [diff] [blame] | 228 | dprintf(CRITICAL, "UFS dme_set_fdeviceinit failed\n"); |
Sundarajan Srinivasan | 54380a3 | 2013-10-25 17:38:38 -0700 | [diff] [blame] | 229 | goto ufs_init_err; |
| 230 | } |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 231 | |
| 232 | ret = ucs_scsi_send_inquiry(dev); |
Sundarajan Srinivasan | 54380a3 | 2013-10-25 17:38:38 -0700 | [diff] [blame] | 233 | if (ret != UFS_SUCCESS) |
| 234 | { |
Sundarajan Srinivasan | 2fcaa98 | 2013-10-31 17:44:02 -0700 | [diff] [blame] | 235 | dprintf(CRITICAL, "UFS ucs_scsi_send_inquiry failed\n"); |
Sundarajan Srinivasan | 54380a3 | 2013-10-25 17:38:38 -0700 | [diff] [blame] | 236 | goto ufs_init_err; |
| 237 | } |
| 238 | |
Sundarajan Srinivasan | 332ce6a | 2013-12-04 17:27:46 -0800 | [diff] [blame^] | 239 | ret = dme_read_device_desc(dev); |
Sundarajan Srinivasan | 54380a3 | 2013-10-25 17:38:38 -0700 | [diff] [blame] | 240 | if (ret != UFS_SUCCESS) |
| 241 | { |
Sundarajan Srinivasan | 332ce6a | 2013-12-04 17:27:46 -0800 | [diff] [blame^] | 242 | dprintf(CRITICAL, "dme_read_dev_desc read failed\n"); |
Sundarajan Srinivasan | 54380a3 | 2013-10-25 17:38:38 -0700 | [diff] [blame] | 243 | goto ufs_init_err; |
| 244 | } |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 245 | |
Sundarajan Srinivasan | 332ce6a | 2013-12-04 17:27:46 -0800 | [diff] [blame^] | 246 | |
| 247 | for(lun=0; lun < dev->num_lus; lun++) |
| 248 | { |
| 249 | ret = dme_read_unit_desc(dev, lun); |
| 250 | if (ret != UFS_SUCCESS) |
| 251 | { |
| 252 | dprintf(CRITICAL, "UFS dme_read_unit_desc failed\n"); |
| 253 | goto ufs_init_err; |
| 254 | } |
| 255 | } |
| 256 | |
Sundarajan Srinivasan | 2fcaa98 | 2013-10-31 17:44:02 -0700 | [diff] [blame] | 257 | dprintf(CRITICAL,"UFS init success\n"); |
| 258 | |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 259 | ufs_init_err: |
Sundarajan Srinivasan | 2fcaa98 | 2013-10-31 17:44:02 -0700 | [diff] [blame] | 260 | |
| 261 | if(ret != UFS_SUCCESS) |
| 262 | { |
| 263 | ufs_dump_hc_registers(dev); |
| 264 | } |
| 265 | |
Deepa Dinamani | ab9c2b9 | 2013-09-12 11:30:58 -0700 | [diff] [blame] | 266 | return ret; |
| 267 | } |
Sundarajan Srinivasan | 2fcaa98 | 2013-10-31 17:44:02 -0700 | [diff] [blame] | 268 | |
| 269 | void ufs_dump_hc_registers(struct ufs_dev *dev) |
| 270 | { |
| 271 | uint32_t base = dev->base; |
| 272 | |
| 273 | dprintf(CRITICAL,"------Host controller register dump ---------\n"); |
| 274 | dprintf(CRITICAL,"UFS_UECPA 0x%x\n",readl(UFS_UECPA(base))); |
| 275 | dprintf(CRITICAL,"UFS_UECDL 0x%x\n",readl(UFS_UECDL(base))); |
| 276 | dprintf(CRITICAL,"UFS_UECN 0x%x\n", readl(UFS_UECN(base))); |
| 277 | dprintf(CRITICAL,"UFS_UECT 0x%x\n",readl(UFS_UECT(base))); |
| 278 | dprintf(CRITICAL,"UFS_UECDME 0x%x\n",readl(UFS_UECDME(base))); |
| 279 | dprintf(CRITICAL,"UFS_HCS 0x%x\n", readl(UFS_HCS(base))); |
| 280 | dprintf(CRITICAL,"-----------End--------------------------------\n"); |
| 281 | } |