vijay kumar | ca1672a | 2015-04-09 16:45:40 +0530 | [diff] [blame] | 1 | /* Copyright (c) 2015, 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 <platform/iomap.h> |
| 32 | #include <qgic.h> |
| 33 | #include <qtimer.h> |
| 34 | #include <mmu.h> |
| 35 | #include <arch/arm/mmu.h> |
| 36 | #include <smem.h> |
| 37 | |
vijay kumar | 689fc9e | 2015-08-24 15:37:38 +0530 | [diff] [blame] | 38 | #define MB (1024 *1024) |
| 39 | |
| 40 | #define MSM_IOMAP_SIZE ((MSM_IOMAP_END - MSM_IOMAP_BASE)/MB) |
| 41 | |
| 42 | #define A7_SS_SIZE ((A7_SS_END - A7_SS_BASE)/MB) |
| 43 | |
| 44 | /* LK memory */ |
| 45 | #define LK_MEMORY (MMU_MEMORY_TYPE_NORMAL_WRITE_THROUGH | \ |
| 46 | MMU_MEMORY_AP_READ_WRITE) |
| 47 | /* Scratch memory - Strongly ordered, non-executable */ |
| 48 | #define SCRATCH_MEMORY (MMU_MEMORY_TYPE_NORMAL_WRITE_THROUGH | \ |
| 49 | MMU_MEMORY_AP_READ_WRITE | MMU_MEMORY_XN) |
| 50 | /* Peripherals - shared device */ |
| 51 | #define IOMAP_MEMORY (MMU_MEMORY_TYPE_DEVICE_SHARED | \ |
| 52 | MMU_MEMORY_AP_READ_WRITE | MMU_MEMORY_XN) |
vijay kumar | 6514324 | 2015-11-17 17:43:35 +0530 | [diff] [blame] | 53 | #define SCRATCH_REGION1_VIRT_START_128 0x88000000 |
| 54 | #define SCRATCH_REGION2_VIRT_START_128 (SCRATCH_REGION1_VIRT_START_128 + SCRATCH_REGION1_SIZE_128) |
vijay kumar | 689fc9e | 2015-08-24 15:37:38 +0530 | [diff] [blame] | 55 | |
vijay kumar | 6514324 | 2015-11-17 17:43:35 +0530 | [diff] [blame] | 56 | static void ddr_based_mmu_mappings(mmu_section_t *table, uint32_t table_size); |
| 57 | static uint64_t ddr_size; |
| 58 | static void board_ddr_detect(); |
vijay kumar | 689fc9e | 2015-08-24 15:37:38 +0530 | [diff] [blame] | 59 | |
| 60 | /* Map all the accesssible memory according to the following rules: |
| 61 | * 1. Map 1MB from MSM_SHARED_BASE with 1 -1 mapping. |
| 62 | * 2. Map MEMBASE - MEMSIZE with 1 -1 mapping. |
| 63 | * 3. Map all the scratch regions immediately after Appsbl memory. |
| 64 | * Virtual addresses start right after Appsbl Virtual address. |
| 65 | * 4. Map all the IOMAP space with 1 - 1 mapping. |
| 66 | * 5. Map all the rest of the SDRAM/ IMEM regions as 1 -1. |
| 67 | */ |
| 68 | mmu_section_t mmu_section_table[] = { |
| 69 | /* Physical addr, Virtual addr, Size (in MB), Flags */ |
| 70 | {MSM_SHARED_BASE, MSM_SHARED_BASE, 1, SCRATCH_MEMORY}, |
| 71 | {MEMBASE, MEMBASE, MEMSIZE / MB, LK_MEMORY}, |
| 72 | {MSM_IOMAP_BASE, MSM_IOMAP_BASE, MSM_IOMAP_SIZE, IOMAP_MEMORY}, |
| 73 | {A7_SS_BASE, A7_SS_BASE, A7_SS_SIZE, IOMAP_MEMORY}, |
| 74 | {MSM_SHARED_IMEM_BASE, MSM_SHARED_IMEM_BASE, 1, IOMAP_MEMORY}, |
vijay kumar | 689fc9e | 2015-08-24 15:37:38 +0530 | [diff] [blame] | 75 | }; |
| 76 | |
vijay kumar | 6514324 | 2015-11-17 17:43:35 +0530 | [diff] [blame] | 77 | mmu_section_t mmu_section_table_128[] = { |
| 78 | {SCRATCH_REGION1_128, SCRATCH_REGION1_VIRT_START_128, SCRATCH_REGION1_SIZE_128/ MB, SCRATCH_MEMORY}, |
| 79 | {SCRATCH_REGION2_128, SCRATCH_REGION2_VIRT_START_128, SCRATCH_REGION2_SIZE_128/ MB, SCRATCH_MEMORY}, |
| 80 | }; |
| 81 | |
| 82 | mmu_section_t mmu_section_table_256[] = { |
| 83 | {SCRATCH_REGION_256, SCRATCH_REGION_256, SCRATCH_REGION_SIZE_256/ MB, SCRATCH_MEMORY}, |
| 84 | {KERNEL_REGION, KERNEL_REGION, KERNEL_REGION_SIZE/ MB, SCRATCH_MEMORY}, |
| 85 | }; |
| 86 | |
| 87 | static void board_ddr_detect() |
| 88 | { |
| 89 | ddr_size = smem_get_ddr_size(); |
| 90 | /*128MB DDR*/ |
| 91 | if(ddr_size == 0x8000000) |
| 92 | ddr_based_mmu_mappings(mmu_section_table_128, ARRAY_SIZE(mmu_section_table_128)); |
| 93 | else |
| 94 | ddr_based_mmu_mappings(mmu_section_table_256, ARRAY_SIZE(mmu_section_table_256)); |
| 95 | } |
| 96 | |
vijay kumar | ca1672a | 2015-04-09 16:45:40 +0530 | [diff] [blame] | 97 | void platform_early_init(void) |
| 98 | { |
vijay kumar | ec49094 | 2015-07-23 12:43:54 +0530 | [diff] [blame] | 99 | board_init(); |
| 100 | platform_clock_init(); |
vijay kumar | ca1672a | 2015-04-09 16:45:40 +0530 | [diff] [blame] | 101 | qgic_init(); |
| 102 | qtimer_init(); |
vijay kumar | ec49094 | 2015-07-23 12:43:54 +0530 | [diff] [blame] | 103 | scm_init(); |
vijay kumar | 6514324 | 2015-11-17 17:43:35 +0530 | [diff] [blame] | 104 | board_ddr_detect(); |
vijay kumar | ca1672a | 2015-04-09 16:45:40 +0530 | [diff] [blame] | 105 | } |
| 106 | |
| 107 | void platform_init(void) |
| 108 | { |
| 109 | dprintf(INFO, "platform_init()\n"); |
| 110 | } |
| 111 | |
| 112 | void platform_uninit(void) |
| 113 | { |
| 114 | qtimer_uninit(); |
vijay kumar | ec49094 | 2015-07-23 12:43:54 +0530 | [diff] [blame] | 115 | qpic_nand_uninit(); |
vijay kumar | ca1672a | 2015-04-09 16:45:40 +0530 | [diff] [blame] | 116 | } |
| 117 | |
| 118 | uint32_t platform_get_sclk_count(void) |
| 119 | { |
| 120 | return readl(MPM2_MPM_SLEEP_TIMETICK_COUNT_VAL); |
| 121 | } |
| 122 | |
| 123 | addr_t get_bs_info_addr() |
| 124 | { |
| 125 | return ((addr_t)BS_INFO_ADDR); |
| 126 | } |
| 127 | |
vijay kumar | 689fc9e | 2015-08-24 15:37:38 +0530 | [diff] [blame] | 128 | addr_t platform_get_virt_to_phys_mapping(addr_t virt_addr) |
| 129 | { |
vijay kumar | 6514324 | 2015-11-17 17:43:35 +0530 | [diff] [blame] | 130 | uint32_t paddr; |
| 131 | uint32_t table_size = ARRAY_SIZE(mmu_section_table); |
| 132 | uint32_t limit; |
| 133 | |
| 134 | for (uint32_t i = 0; i < table_size; i++) |
| 135 | { |
| 136 | limit = (mmu_section_table[i].num_of_sections * MB) - 0x1; |
| 137 | |
| 138 | if (virt_addr >= mmu_section_table[i].vaddress && |
| 139 | virt_addr <= (mmu_section_table[i].vaddress + limit)) |
| 140 | { |
| 141 | paddr = mmu_section_table[i].paddress + (virt_addr - mmu_section_table[i].vaddress); |
| 142 | return paddr; |
| 143 | } |
| 144 | } |
| 145 | if(ddr_size == 0x8000000) |
| 146 | { |
| 147 | table_size = ARRAY_SIZE(mmu_section_table_128); |
| 148 | for (uint32_t i = 0; i < table_size; i++) |
| 149 | { |
| 150 | limit = (mmu_section_table_128[i].num_of_sections * MB) - 0x1; |
| 151 | |
| 152 | if (virt_addr >= mmu_section_table_128[i].vaddress && |
| 153 | virt_addr <= (mmu_section_table_128[i].vaddress + limit)) |
| 154 | { |
| 155 | paddr = mmu_section_table_128[i].paddress + (virt_addr - mmu_section_table_128[i].vaddress); |
| 156 | return paddr; |
| 157 | } |
| 158 | } |
| 159 | } |
| 160 | else |
| 161 | { |
| 162 | /* Any DDR > 256MB would be mapped here & LK would use only first 256 MB */ |
| 163 | table_size = ARRAY_SIZE(mmu_section_table_256); |
| 164 | for (uint32_t i = 0; i < table_size; i++) |
| 165 | { |
| 166 | limit = (mmu_section_table_256[i].num_of_sections * MB) - 0x1; |
| 167 | |
| 168 | if (virt_addr >= mmu_section_table_256[i].vaddress && |
| 169 | virt_addr <= (mmu_section_table_256[i].vaddress + limit)) |
| 170 | { |
| 171 | paddr = mmu_section_table_256[i].paddress + (virt_addr - mmu_section_table_256[i].vaddress); |
| 172 | return paddr; |
| 173 | } |
| 174 | } |
| 175 | } |
| 176 | /* No special mapping found. |
| 177 | * Assume 1-1 mapping. |
| 178 | */ |
| 179 | paddr = virt_addr; |
| 180 | return paddr; |
| 181 | |
vijay kumar | 689fc9e | 2015-08-24 15:37:38 +0530 | [diff] [blame] | 182 | } |
| 183 | |
| 184 | addr_t platform_get_phys_to_virt_mapping(addr_t phys_addr) |
| 185 | { |
vijay kumar | 6514324 | 2015-11-17 17:43:35 +0530 | [diff] [blame] | 186 | uint32_t vaddr; |
| 187 | uint32_t table_size = ARRAY_SIZE(mmu_section_table); |
| 188 | uint32_t limit; |
| 189 | |
| 190 | for (uint32_t i = 0; i < table_size; i++) |
| 191 | { |
| 192 | limit = (mmu_section_table[i].num_of_sections * MB) - 0x1; |
| 193 | |
| 194 | if (phys_addr >= mmu_section_table[i].paddress && |
| 195 | phys_addr <= (mmu_section_table[i].paddress + limit)) |
| 196 | { |
| 197 | vaddr = mmu_section_table[i].vaddress + (phys_addr - mmu_section_table[i].paddress); |
| 198 | return vaddr; |
| 199 | } |
| 200 | } |
| 201 | if(ddr_size == 0x8000000) |
| 202 | { |
| 203 | table_size = ARRAY_SIZE(mmu_section_table_128); |
| 204 | for (uint32_t i = 0; i < table_size; i++) |
| 205 | { |
| 206 | limit = (mmu_section_table_128[i].num_of_sections * MB) - 0x1; |
| 207 | |
| 208 | if (phys_addr >= mmu_section_table_128[i].paddress && |
| 209 | phys_addr <= (mmu_section_table_128[i].paddress + limit)) |
| 210 | { |
| 211 | vaddr = mmu_section_table_128[i].vaddress + (phys_addr - mmu_section_table_128[i].paddress); |
| 212 | return vaddr; |
| 213 | } |
| 214 | } |
| 215 | } |
| 216 | else |
| 217 | { |
| 218 | /* Any DDR > 256MB would be mapped here & LK would use only first 256 MB */ |
| 219 | table_size = ARRAY_SIZE(mmu_section_table_256); |
| 220 | for (uint32_t i = 0; i < table_size; i++) |
| 221 | { |
| 222 | limit = (mmu_section_table_256[i].num_of_sections * MB) - 0x1; |
| 223 | |
| 224 | if (phys_addr >= mmu_section_table_256[i].paddress && |
| 225 | phys_addr <= (mmu_section_table_256[i].paddress + limit)) |
| 226 | { |
| 227 | vaddr = mmu_section_table_256[i].vaddress + (phys_addr - mmu_section_table_256[i].paddress); |
| 228 | return vaddr; |
| 229 | } |
| 230 | } |
| 231 | } |
| 232 | |
| 233 | /* No special mapping found. |
| 234 | * Assume 1-1 mapping. |
| 235 | */ |
| 236 | vaddr = phys_addr; |
| 237 | |
| 238 | return vaddr; |
vijay kumar | 689fc9e | 2015-08-24 15:37:38 +0530 | [diff] [blame] | 239 | } |
| 240 | |
| 241 | /* Setup memory for this platform */ |
| 242 | void platform_init_mmu_mappings(void) |
| 243 | { |
| 244 | uint32_t i; |
| 245 | uint32_t sections; |
| 246 | uint32_t table_size = ARRAY_SIZE(mmu_section_table); |
| 247 | |
| 248 | /* Configure the MMU page entries for memory read from the |
| 249 | mmu_section_table */ |
| 250 | for (i = 0; i < table_size; i++) |
| 251 | { |
| 252 | sections = mmu_section_table[i].num_of_sections; |
| 253 | |
| 254 | while (sections--) |
| 255 | { |
| 256 | arm_mmu_map_section(mmu_section_table[i].paddress + |
| 257 | sections * MB, |
| 258 | mmu_section_table[i].vaddress + |
| 259 | sections * MB, |
| 260 | mmu_section_table[i].flags); |
| 261 | } |
| 262 | } |
| 263 | } |
vijay kumar | 6514324 | 2015-11-17 17:43:35 +0530 | [diff] [blame] | 264 | |
| 265 | /* Setup memory for this platform */ |
| 266 | static void ddr_based_mmu_mappings(mmu_section_t *table,uint32_t table_size) |
| 267 | { |
| 268 | uint32_t i; |
| 269 | uint32_t sections; |
| 270 | |
| 271 | /* Configure the MMU page entries for memory read from the |
| 272 | mmu_section_table */ |
| 273 | for (i = 0; i < table_size; i++) |
| 274 | { |
| 275 | sections = table->num_of_sections; |
| 276 | |
| 277 | while (sections--) |
| 278 | { |
| 279 | arm_mmu_map_section(table->paddress + |
| 280 | sections * MB, |
| 281 | table->vaddress + |
| 282 | sections * MB, |
| 283 | table->flags); |
| 284 | } |
| 285 | table++; |
| 286 | } |
| 287 | } |
| 288 | |
vijay kumar | ca1672a | 2015-04-09 16:45:40 +0530 | [diff] [blame] | 289 | int platform_use_identity_mmu_mappings(void) |
| 290 | { |
| 291 | /* Use only the mappings specified in this file. */ |
vijay kumar | 689fc9e | 2015-08-24 15:37:38 +0530 | [diff] [blame] | 292 | return 0; |
vijay kumar | ca1672a | 2015-04-09 16:45:40 +0530 | [diff] [blame] | 293 | } |
Mayank Grover | 4266467 | 2017-03-06 17:57:26 +0530 | [diff] [blame] | 294 | |
| 295 | bool platform_is_mdm9206() |
| 296 | { |
| 297 | uint32_t platform_id = board_platform_id(); |
| 298 | bool ret; |
| 299 | |
| 300 | switch(platform_id) |
| 301 | { |
| 302 | case MDM9206: |
| 303 | ret = true; |
| 304 | break; |
| 305 | default: |
| 306 | ret = false; |
| 307 | } |
| 308 | |
| 309 | return ret; |
| 310 | } |