| /* Copyright (c) 2013, The Linux Foundation. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials provided |
| * with the distribution. |
| * * Neither the name of The Linux Foundation nor the names of its |
| * contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| * NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
| * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
| * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
| * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include <debug.h> |
| #include <reg.h> |
| #include <platform/iomap.h> |
| #include <qgic.h> |
| #include <qtimer.h> |
| #include <platform/clock.h> |
| #include <mmu.h> |
| #include <arch/arm/mmu.h> |
| #include <smem.h> |
| #include <board.h> |
| #include <boot_stats.h> |
| |
| #define MB (1024*1024) |
| |
| #define MSM_IOMAP_SIZE ((MSM_IOMAP_END - MSM_IOMAP_BASE)/MB) |
| |
| /* LK memory - cacheable, write through */ |
| #define LK_MEMORY (MMU_MEMORY_TYPE_NORMAL_WRITE_THROUGH | \ |
| MMU_MEMORY_AP_READ_WRITE) |
| |
| /* Peripherals - non-shared device */ |
| #define IOMAP_MEMORY (MMU_MEMORY_TYPE_DEVICE_SHARED | \ |
| MMU_MEMORY_AP_READ_WRITE | MMU_MEMORY_XN) |
| |
| /* IMEM memory - cacheable, write through */ |
| #define IMEM_MEMORY (MMU_MEMORY_TYPE_NORMAL_WRITE_THROUGH | \ |
| MMU_MEMORY_AP_READ_WRITE | MMU_MEMORY_XN) |
| |
| static mmu_section_t mmu_section_table[] = { |
| /* Physical addr, Virtual addr, Size (in MB), Flags */ |
| {MEMBASE, MEMBASE, (MEMSIZE / MB), LK_MEMORY}, |
| {MSM_IOMAP_BASE, MSM_IOMAP_BASE, MSM_IOMAP_SIZE, IOMAP_MEMORY}, |
| /* IMEM needs a seperate entry in the table as it's length is only 0x8000. */ |
| {SYSTEM_IMEM_BASE, SYSTEM_IMEM_BASE, 1, IMEM_MEMORY}, |
| }; |
| |
| /* Boot timestamps */ |
| #define BS_INFO_OFFSET (0x6B0) |
| #define BS_INFO_ADDR_V1 (RPM_MSG_RAM_BASE + BS_INFO_OFFSET) |
| #define BS_INFO_ADDR_V2 (MSM_SHARED_IMEM_BASE + BS_INFO_OFFSET) |
| |
| void platform_early_init(void) |
| { |
| board_init(); |
| platform_clock_init(); |
| qgic_init(); |
| qtimer_init(); |
| } |
| |
| void platform_init(void) |
| { |
| dprintf(INFO, "platform_init()\n"); |
| } |
| |
| uint32_t platform_get_sclk_count(void) |
| { |
| return readl(MPM2_MPM_SLEEP_TIMETICK_COUNT_VAL); |
| } |
| |
| addr_t get_bs_info_addr() |
| { |
| uint32_t soc_ver = board_soc_version(); |
| |
| if (soc_ver < BOARD_SOC_VERSION2) |
| return ((addr_t)BS_INFO_ADDR_V1); |
| else |
| return ((addr_t)BS_INFO_ADDR_V2); |
| |
| } |
| |
| void platform_uninit(void) |
| { |
| qtimer_uninit(); |
| } |
| |
| int platform_use_identity_mmu_mappings(void) |
| { |
| /* Use only the mappings specified in this file. */ |
| return 0; |
| } |
| |
| addr_t platform_get_virt_to_phys_mapping(addr_t virt_addr) |
| { |
| /* Return same address as we are using 1-1 mapping. */ |
| return virt_addr; |
| } |
| |
| addr_t platform_get_phys_to_virt_mapping(addr_t phys_addr) |
| { |
| /* Return same address as we are using 1-1 mapping. */ |
| return phys_addr; |
| } |
| |
| |
| /* Setup memory for this platform */ |
| void platform_init_mmu_mappings(void) |
| { |
| uint32_t i; |
| uint32_t sections; |
| ram_partition ptn_entry; |
| uint32_t table_size = ARRAY_SIZE(mmu_section_table); |
| uint32_t len = 0; |
| |
| ASSERT(smem_ram_ptable_init_v1()); |
| |
| len = smem_get_ram_ptable_len(); |
| |
| /* Configure the MMU page entries for SDRAM and IMEM memory read |
| from the smem ram table */ |
| for (i = 0; i < len; i++) |
| { |
| smem_get_ram_ptable_entry(&ptn_entry, i); |
| if ((ptn_entry.type == SYS_MEMORY) && |
| ((ptn_entry.category == SDRAM) || |
| (ptn_entry.category == IMEM))) |
| { |
| /* Check to ensure that start address is 1MB aligned */ |
| ASSERT((ptn_entry.start & (MB-1)) == 0); |
| |
| sections = ptn_entry.size / MB; |
| while(sections--) |
| { |
| arm_mmu_map_section( |
| (ptn_entry.start + sections * MB), |
| (ptn_entry.start + sections * MB), |
| (MMU_MEMORY_TYPE_NORMAL_WRITE_THROUGH | |
| MMU_MEMORY_AP_READ_WRITE | |
| MMU_MEMORY_XN)); |
| } |
| } |
| } |
| |
| /* Configure the MMU page entries for memory read from the |
| mmu_section_table */ |
| for (i = 0; i < table_size; i++) |
| { |
| sections = mmu_section_table[i].num_of_sections; |
| |
| while (sections--) |
| { |
| arm_mmu_map_section(mmu_section_table[i].paddress + |
| sections * MB, |
| mmu_section_table[i].vaddress + |
| sections * MB, |
| mmu_section_table[i].flags); |
| } |
| } |
| } |