Introduction
This datasheet provides the performance numbers of various device drivers in MCU PLUS SDK for AM62X
Generic Setup details
| SOC Details | Values |
| Core | R5F |
| Core Operating Speed | 400 MHz |
| Cache Status | Enabled |
| Optimization Details | Values |
| Build Profile | Release |
| R5F Compiler flags | -mcpu=cortex-r5 -mfloat-abi=hard -mfpu=vfpv3-d16 -Wall -Werror -g -mthumb -Wno-gnu-variable-sized-type-not-at-end -Wno-unused-function |
| R5F Linker flags | -Wl,–diag_suppress=10063 -Wl,–ram_model -Wl,–reread_libs |
| Code Placement | HSM RAM (For SBL Stage1), DDR (SBL Stage2 and others) |
| Data Placement | HSM RAM (For SBL Stage1), DDR (SBL Stage2 and others) |
Performance Numbers
AM62X-SK SBL OSPI performance (HS-FS)
- Software/Application used : sbl_ospi_linux_multistage, ipc_rpmsg_echo_linux, linux and HSM App Images
- Cores booted by stage1 SBL : m4f0-0 r5f0-0
- Cores booted by stage2 SBL : hsm-m4f0-0 r5f0-0 a530-0
- Size of images loaded by stage1 : 184 KB
- Size of images loaded by stage2 : 1058 KB
- Boot Media Clock : 166.667 MHz
- Mode : PHY enabled, DMA enabled
- Protocol : 8D-8D-8D
| SBL Stage1 boot time breakdown | Time (ms) |
| SBL Stage1: System_init | 5.508 |
| SBL Stage1: Board_init | 0.000 |
| SBL Stage1: Drivers_open | 0.299 |
| SBL Stage1: Board_driversOpen | 6.786 |
| SBL Stage1: Sciclient Get Version | 10.204 |
| SBL Stage1: App_waitForMcuPbist | 4.996 |
| SBL Stage1: App_waitForMcuLbist | 7.689 |
| SBL Stage1: App_loadImages | 3.574 |
| SBL Stage1: App_loadSelfcoreImage | 3.948 |
| -------------------------------------— | -----------— |
| SBL Stage1: Total time taken | 43.008 |
| SBL Stage2 boot time breakdown | Time (ms) |
| SBL Stage2: System_init | 2.836 |
| SBL Stage2: Board_init | 0.000 |
| SBL Stage2: Drivers_open | 0.365 |
| SBL Stage2: Board_driversOpen | 27.967 |
| SBL Stage2: Sciclient Get Version | 10.261 |
| SBL Stage2: App_loadImages | 2.680 |
| SBL Stage2: App_loadSelfcoreImage | 4.152 |
| SBL Stage2: App_loadLinuxImages | 11.765 |
| -------------------------------------— | -----------— |
| SBL Stage2: Total time taken | 60.030 |
- The time taken for Board_driversOpen is mostly for the PHY tuning of OSPI. If this needs to be further reduced, one can pre-train the PHY, note down delay values and set it directly instead of the tuning procedure.
- MCU PBIST is started before the DDR init/ It is done in HW in parallel while the DDR init is completed. Due to this MCU PBIST wait time is low.
- The time taken for Sciclient Get Version can be avoided if the version check is disabled
AM62X-SK SBL OSPI performance (HS-SE)
- Software/Application used : sbl_ospi_linux_multistage, ipc_rpmsg_echo_linux, linux and HSM App Images
- Cores booted by stage1 SBL : m4f0-0 r5f0-0
- Cores booted by stage2 SBL : hsm-m4f0-0 r5f0-0 a530-0
- Size of images loaded by stage1 : 184 KB
- Size of images loaded by stage2 : 1058 KB
- Boot Media Clock : 166.667 MHz
- Mode : PHY enabled, DMA enabled
- Protocol : 8D-8D-8D
| SBL Stage1 boot time breakdown | Time (ms) |
| SBL Stage1: System_init | 5.465 |
| SBL Stage1: Board_init | 0.000 |
| SBL Stage1: Drivers_open | 0.297 |
| SBL Stage1: Board_driversOpen | 6.786 |
| SBL Stage1: Sciclient Get Version | 10.204 |
| SBL Stage1: App_waitForMcuPbist | 4.998 |
| SBL Stage1: App_waitForMcuLbist | 7.689 |
| SBL Stage1: App_loadImages | 3.643 |
| SBL Stage1: App_loadSelfcoreImage | 4.025 |
| -------------------------------------— | -----------— |
| SBL Stage1: Total time taken | 43.111 |
| SBL Stage2 boot time breakdown | Time (ms) |
| SBL Stage2: System_init | 2.832 |
| SBL Stage2: Board_init | 0.001 |
| SBL Stage2: Drivers_open | 0.371 |
| SBL Stage2: Board_driversOpen | 27.747 |
| SBL Stage2: Sciclient Get Version | 10.231 |
| SBL Stage2: App_loadImages | 2.763 |
| SBL Stage2: App_loadSelfcoreImage | 4.238 |
| SBL Stage2: App_loadLinuxImages | 11.847 |
| -------------------------------------— | -----------— |
| SBL Stage2: Total time taken | 60.033 |
- The time taken for Board_driversOpen is mostly for the PHY tuning of OSPI. If this needs to be further reduced, one can pre-train the PHY, note down delay values and set it directly instead of the tuning procedure.
- MCU PBIST is started before the DDR init/ It is done in HW in parallel while the DDR init is completed. Due to this MCU PBIST wait time is low.
- The time taken for Sciclient Get Version can be avoided if the version check is disabled
AM62X-SK-SIP SBL OSPI performance (HS-FS)
- Software/Application used : sbl_ospi_linux_multistage, ipc_rpmsg_echo_linux, linux and HSM App Images
- Cores booted by stage1 SBL : m4f0-0 r5f0-0
- Cores booted by stage2 SBL : hsm-m4f0-0 r5f0-0 a530-0
- Size of images loaded by stage1 : 184 KB
- Size of images loaded by stage2 : 1058 KB
- Boot Media Clock : 166.667 MHz
- Mode : PHY enabled, DMA enabled
- Protocol : 8D-8D-8D
| SBL Stage1 boot time breakdown | Time (ms) |
| SBL Stage1: System_init | 23.402 |
| SBL Stage1: Board_init | 0.000 |
| SBL Stage1: Drivers_open | 0.295 |
| SBL Stage1: Board_driversOpen | 6.784 |
| SBL Stage1: Sciclient Get Version | 10.202 |
| SBL Stage1: App_waitForMcuPbist | 5.002 |
| SBL Stage1: App_waitForMcuLbist | 7.689 |
| SBL Stage1: App_loadImages | 3.571 |
| SBL Stage1: App_loadSelfcoreImage | 3.968 |
| -------------------------------------— | -----------— |
| SBL Stage1: Total time taken | 60.920 |
| SBL Stage2 boot time breakdown | Time (ms) |
| SBL Stage2: System_init | 2.857 |
| SBL Stage2: Board_init | 0.000 |
| SBL Stage2: Drivers_open | 0.367 |
| SBL Stage2: Board_driversOpen | 28.008 |
| SBL Stage2: Sciclient Get Version | 10.240 |
| SBL Stage2: App_loadImages | 2.677 |
| SBL Stage2: App_loadSelfcoreImage | 4.181 |
| SBL Stage2: App_loadLinuxImages | 12.109 |
| -------------------------------------— | -----------— |
| SBL Stage2: Total time taken | 60.030 |
- The time taken for Board_driversOpen is mostly for the PHY tuning of OSPI. If this needs to be further reduced, one can pre-train the PHY, note down delay values and set it directly instead of the tuning procedure.
- MCU PBIST is started before the DDR init/ It is done in HW in parallel while the DDR init is completed. Due to this MCU PBIST wait time is low.
- The time taken for Sciclient Get Version can be avoided if the version check is disabled
AM62X-SK LP SBL OSPI NAND performance (HS-FS)
- Software/Application used : sbl_ospi_nand_linux_multistage, ipc_rpmsg_echo_linux, linux and HSM App Images
- Cores booted by stage1 SBL : m4f0-0 r5f0-0
- Cores booted by stage2 SBL : hsm-m4f0-0 r5f0-0 a530-0
- Size of images loaded by stage1 : 182 KB
- Size of images loaded by stage2 : 1043 KB
- Boot Media Clock : 200.000 MHz
- Mode : PHY enabled, DMA enabled
- Protocol : 1S-8S-8S
| SBL Stage1 boot time breakdown | Time (ms) |
| SBL Stage1: System_init | 33.300 |
| SBL Stage1: Board_init | 0.000 |
| SBL Stage1: Drivers_open | 0.204 |
| SBL Stage1: Board_driversOpen | 6.587 |
| SBL Stage1: Sciclient Get Version | 10.204 |
| SBL Stage1: App_waitForMcuPbist | 5.298 |
| SBL Stage1: App_waitForMcuLbist | 7.689 |
| SBL Stage1: App_loadImages | 4.017 |
| SBL Stage1: App_loadSelfcoreImage | 7.347 |
| -------------------------------------— | -----------— |
| SBL Stage1: Total time taken | 74.651 |
| SBL Stage2 boot time breakdown | Time (ms) |
| SBL Stage2: System_init | 2.884 |
| SBL Stage2: Board_init | 0.001 |
| SBL Stage2: Drivers_open | 0.267 |
| SBL Stage2: Board_driversOpen | 47.058 |
| SBL Stage2: Sciclient Get Version | 10.289 |
| SBL Stage2: App_loadImages | 2.182 |
| SBL Stage2: App_loadSelfcoreImage | 7.648 |
| SBL Stage2: App_loadLinuxImages | 39.437 |
| -------------------------------------— | -----------— |
| SBL Stage2: Total time taken | 109.768 |
- Here the CPU load or section copy takes place from the OSPI memory to DDR, this would be slower that mem to mem copy.
- The time taken for Sciclient Get Version can be avoided if the version check is disabled
- MCU PBIST is started before the DDR init/ It is done in HW in parallel while the DDR init is completed. Due to this MCU PBIST wait time is low.
- Out of the ~35 ms taken for System Init is mostly attributed to DDR initialization.
AM62X-SK LP SBL OSPI NAND performance (HS-SE)
- Software/Application used : sbl_ospi_nand_linux_multistage, ipc_rpmsg_echo_linux, linux and HSM App Images
- Cores booted by stage1 SBL : m4f0-0 r5f0-0
- Cores booted by stage2 SBL : hsm-m4f0-0 r5f0-0 a530-0
- Size of images loaded by stage1 : 182 KB
- Size of images loaded by stage2 : 1043 KB
- Boot Media Clock : 200.000 MHz
- Mode : PHY enabled, DMA enabled
- Protocol : 1S-8S-8S
| SBL Stage1 boot time breakdown | Time (ms) |
| SBL Stage1: System_init | 33.559 |
| SBL Stage1: Board_init | 0.000 |
| SBL Stage1: Drivers_open | 0.203 |
| SBL Stage1: Board_driversOpen | 6.701 |
| SBL Stage1: Sciclient Get Version | 10.203 |
| SBL Stage1: App_waitForMcuPbist | 5.176 |
| SBL Stage1: App_waitForMcuLbist | 7.689 |
| SBL Stage1: App_loadImages | 4.095 |
| SBL Stage1: App_loadSelfcoreImage | 7.446 |
| -------------------------------------— | -----------— |
| SBL Stage1: Total time taken | 75.076 |
| SBL Stage2 boot time breakdown | Time (ms) |
| SBL Stage2: System_init | 2.887 |
| SBL Stage2: Board_init | 0.001 |
| SBL Stage2: Drivers_open | 0.266 |
| SBL Stage2: Board_driversOpen | 47.533 |
| SBL Stage2: Sciclient Get Version | 10.249 |
| SBL Stage2: App_loadImages | 2.261 |
| SBL Stage2: App_loadSelfcoreImage | 7.732 |
| SBL Stage2: App_loadLinuxImages | 39.516 |
| -------------------------------------— | -----------— |
| SBL Stage2: Total time taken | 110.448 |
- Here the CPU load or section copy takes place from the OSPI memory to DDR, this would be slower that mem to mem copy.
- The time taken for Sciclient Get Version can be avoided if the version check is disabled
- Out of the ~35 ms taken for System Init is mostly attributed to DDR initialization.
AM62X-SK SBL EMMC performance (HS-FS)
- Software/Application used : sbl_emmc_linux_multistage, ipc_rpmsg_echo_linux, linux and HSM App Images
- Cores booted by stage1 SBL : m4f0-0 r5f0-0
- Cores booted by stage2 SBL : hsm-m4f0-0 r5f0-0 a530-0
- Size of images loaded by stage1 : 158 KB
- Size of images loaded by stage2 : 1058 KB
- Boot Media Clock : 200.000 MHz
- Mode : HS200
| SBL Stage1 boot time breakdown | Time (ms) |
| SBL Stage1: System_init | 5.621 |
| SBL Stage1: Board_init | 0.000 |
| SBL Stage1: Drivers_open | 50.974 |
| SBL Stage1: Board_driversOpen | 0.000 |
| SBL Stage1: Sciclient Get Version | 10.204 |
| SBL Stage1: App_loadImages | 6.682 |
| SBL Stage1: App_loadSelfcoreImage | 7.989 |
| -------------------------------------— | -----------— |
| SBL Stage1: Total time taken | 81.472 |
| SBL Stage2 boot time breakdown | Time (ms) |
| SBL Stage2: System_init | 3.658 |
| SBL Stage2: Board_init | 0.001 |
| SBL Stage2: Drivers_open | 19.541 |
| SBL Stage2: Board_driversOpen | 0.001 |
| SBL Stage2: Sciclient Get Version | 10.250 |
| SBL Stage2: App_loadImages | 5.530 |
| SBL Stage2: App_loadSelfcoreImage | 8.827 |
| SBL Stage2: App_loadLinuxImages | 28.470 |
| -------------------------------------— | -----------— |
| SBL Stage2: Total time taken | 76.282 |
- The emmc driver initialization is done as part of Drivers_open.
- The time taken for Sciclient Get Version can be avoided if the version check is disabled
- System Init is mostly attributed to DDR initialization.
AM62X-SK SBL EMMC performance (HS-SE)
- Software/Application used : sbl_emmc_linux_multistage, ipc_rpmsg_echo_linux, linux and HSM App Images
- Cores booted by stage1 SBL : m4f0-0 r5f0-0
- Cores booted by stage2 SBL : hsm-m4f0-0 r5f0-0 a530-0
- Size of images loaded by stage1 : 158 KB
- Size of images loaded by stage2 : 1058 KB
- Boot Media Clock : 200.000 MHz
- Mode : HS200
| SBL Stage1 boot time breakdown | Time (ms) |
| SBL Stage1: System_init | 5.397 |
| SBL Stage1: Board_init | 0.001 |
| SBL Stage1: Drivers_open | 19.515 |
| SBL Stage1: Board_driversOpen | 0.000 |
| SBL Stage1: Sciclient Get Version | 10.201 |
| SBL Stage1: App_loadImages | 6.357 |
| SBL Stage1: App_loadSelfcoreImage | 7.632 |
| -------------------------------------— | -----------— |
| SBL Stage1: Total time taken | 49.106 |
| SBL Stage2 boot time breakdown | Time (ms) |
| SBL Stage2: System_init | 2.663 |
| SBL Stage2: Board_init | 0.001 |
| SBL Stage2: Drivers_open | 19.537 |
| SBL Stage2: Board_driversOpen | 0.001 |
| SBL Stage2: Sciclient Get Version | 10.260 |
| SBL Stage2: App_loadImages | 5.202 |
| SBL Stage2: App_loadSelfcoreImage | 8.470 |
| SBL Stage2: App_loadLinuxImages | 28.090 |
| -------------------------------------— | -----------— |
| SBL Stage2: Total time taken | 74.226 |
- The emmc driver initialization is done as part of Drivers_open.
- The time taken for Sciclient Get Version can be avoided if the version check is disabled
- System Init is mostly attributed to DDR initialization.
AM62X-SK-SIP SBL EMMC performance (HS-FS)
- Software/Application used : sbl_emmc_linux_multistage, ipc_rpmsg_echo_linux, linux and HSM App Images
- Cores booted by stage1 SBL : m4f0-0 r5f0-0
- Cores booted by stage2 SBL : hsm-m4f0-0 r5f0-0 a530-0
- Size of images loaded by stage1 : 158 KB
- Size of images loaded by stage2 : 1058 KB
- Boot Media Clock : 200.000 MHz
- Mode : HS200
| SBL Stage1 boot time breakdown | Time (ms) |
| SBL Stage1: System_init | 23.459 |
| SBL Stage1: Board_init | 0.000 |
| SBL Stage1: Drivers_open | 19.575 |
| SBL Stage1: Board_driversOpen | 0.000 |
| SBL Stage1: Sciclient Get Version | 10.202 |
| SBL Stage1: App_loadImages | 7.371 |
| SBL Stage1: App_loadSelfcoreImage | 7.887 |
| -------------------------------------— | -----------— |
| SBL Stage1: Total time taken | 68.497 |
| SBL Stage2 boot time breakdown | Time (ms) |
| SBL Stage2: System_init | 2.652 |
| SBL Stage2: Board_init | 0.001 |
| SBL Stage2: Drivers_open | 19.524 |
| SBL Stage2: Board_driversOpen | 0.001 |
| SBL Stage2: Sciclient Get Version | 10.258 |
| SBL Stage2: App_loadImages | 6.163 |
| SBL Stage2: App_loadSelfcoreImage | 8.675 |
| SBL Stage2: App_loadLinuxImages | 28.567 |
| -------------------------------------— | -----------— |
| SBL Stage2: Total time taken | 75.844 |
- The emmc driver initialization is done as part of Drivers_open.
- The time taken for Sciclient Get Version can be avoided if the version check is disabled
- System Init is mostly attributed to DDR initialization.
AM62X-SK LP SBL EMMC performance (HS-FS)
- Software/Application used : sbl_emmc_linux_multistage, ipc_rpmsg_echo_linux, linux and HSM App Images
- Cores booted by stage1 SBL : m4f0-0 r5f0-0
- Cores booted by stage2 SBL : hsm-m4f0-0 r5f0-0 a530-0
- Size of images loaded by stage1 : 158 KB
- Size of images loaded by stage2 : 1043 KB
- Boot Media Clock : 200.000 MHz
- Mode : HS200
| SBL Stage1 boot time breakdown | Time (ms) |
| SBL Stage1: System_init | 33.272 |
| SBL Stage1: Board_init | 0.000 |
| SBL Stage1: Drivers_open | 58.245 |
| SBL Stage1: Board_driversOpen | 0.000 |
| SBL Stage1: Sciclient Get Version | 10.201 |
| SBL Stage1: App_loadImages | 6.422 |
| SBL Stage1: App_loadSelfcoreImage | 7.742 |
| -------------------------------------— | -----------— |
| SBL Stage1: Total time taken | 115.885 |
| SBL Stage2 boot time breakdown | Time (ms) |
| SBL Stage2: System_init | 2.693 |
| SBL Stage2: Board_init | 0.001 |
| SBL Stage2: Drivers_open | 19.545 |
| SBL Stage2: Board_driversOpen | 0.001 |
| SBL Stage2: Sciclient Get Version | 10.263 |
| SBL Stage2: App_loadImages | 5.161 |
| SBL Stage2: App_loadSelfcoreImage | 8.560 |
| SBL Stage2: App_loadLinuxImages | 28.521 |
| -------------------------------------— | -----------— |
| SBL Stage2: Total time taken | 74.749 |
- The emmc driver initialization is done as part of Drivers_open.
- The time taken for Sciclient Get Version can be avoided if the version check is disabled
- System Init is mostly attributed to DDR initialization.
AM62X-SK LP SBL EMMC performance (HS-SE)
- Software/Application used : sbl_emmc_linux_multistage, ipc_rpmsg_echo_linux, linux and HSM App Images
- Cores booted by stage1 SBL : m4f0-0 r5f0-0
- Cores booted by stage2 SBL : hsm-m4f0-0 r5f0-0 a530-0
- Size of images loaded by stage1 : 158 KB
- Size of images loaded by stage2 : 1043 KB
- Boot Media Clock : 200.000 MHz
- Mode : HS200
| SBL Stage1 boot time breakdown | Time (ms) |
| SBL Stage1: System_init | 33.454 |
| SBL Stage1: Board_init | 0.000 |
| SBL Stage1: Drivers_open | 45.241 |
| SBL Stage1: Board_driversOpen | 0.000 |
| SBL Stage1: Sciclient Get Version | 10.202 |
| SBL Stage1: App_loadImages | 6.650 |
| SBL Stage1: App_loadSelfcoreImage | 7.950 |
| -------------------------------------— | -----------— |
| SBL Stage1: Total time taken | 103.498 |
| SBL Stage2 boot time breakdown | Time (ms) |
| SBL Stage2: System_init | 2.688 |
| SBL Stage2: Board_init | 0.001 |
| SBL Stage2: Drivers_open | 19.546 |
| SBL Stage2: Board_driversOpen | 0.001 |
| SBL Stage2: Sciclient Get Version | 10.241 |
| SBL Stage2: App_loadImages | 5.562 |
| SBL Stage2: App_loadSelfcoreImage | 9.011 |
| SBL Stage2: App_loadLinuxImages | 28.992 |
| -------------------------------------— | -----------— |
| SBL Stage2: Total time taken | 76.044 |
- The emmc driver initialization is done as part of Drivers_open.
- The time taken for Sciclient Get Version can be avoided if the version check is disabled
- System Init is mostly attributed to DDR initialization.
IPC performance
IPC NOTIFY
- 10000 messages are sent and average one way message latency is measured
| Local Core | Remote Core | Average Message Latency (us) |
| r5f0-0 | m4f0-0 | 1.58 |
IPC RPMSG
- 1000 messages are sent and average one way message latency is measured
| Local Core | Remote Core | Message Size | Average Message Latency (us) | Max Latency (us) |
| r5f0-0 | m4f0-0 | 4 | 13.824 | 15 |
| r5f0-0 | m4f0-0 | 32 | 22.792 | 23 |
| r5f0-0 | m4f0-0 | 64 | 32.998 | 34 |
| r5f0-0 | m4f0-0 | 112 | 48.224 | 49 |
EMMC Performance
| Mode | Data size(MiB) | Write speed(MiBps) | Read speed(MiBps) |
| SDR50 | 1 | 36.75 | 44.14 |
| SDR50 | 4 | 41.50 | 43.48 |
| SDR50 | 6 | 41.74 | 43.93 |
| DDR50 | 1 | 49.63 | 79.05 |
| DDR50 | 4 | 47.22 | 77.00 |
| DDR50 | 6 | 52.24 | 78.28 |
| HS200 | 1 | 48.79 | 151.55 |
| HS200 | 4 | 57.12 | 144.02 |
| HS200 | 6 | 55.92 | 149.03 |
OSPI NOR Flash Performance
- Flash protocol: FLASH_CFG_PROTO_8D_8D_8D
- PHY : enabled
- DMA : enabled
| Data size(MiB) | Write speed(MiBps) | Read speed(MiBps) |
| 1 | 0.42 | 247.42 |
| 5 | 0.43 | 248.67 |
| 10 | 0.43 | 248.83 |
OSPI NAND Flash Performance
- Flash protocol: FLASH_CFG_PROTO_1S_8S_8S
- PHY : enabled
- DMA : enabled
| Data size(MiB) | Write speed(MiBps) | Read speed(MiBps) |
| 1 | 2.39 | 44.75 |
| 5 | 2.40 | 47.24 |
| 10 | 2.40 | 47.46 |
GPMC NAND Flash Performance
- Flash type: PARALLEL NAND
- DMA : enabled
| Data size(MiB) | Write speed(MiBps) | Read speed(MiBps) |
| 1 | 6.70 | 19.93 |
| 5 | 6.70 | 19.93 |
| 10 | 6.70 | 19.93 |
1.8.20