Datasheet

Table of Contents

• Introduction
• Generic Setup details
• Performance Numbers
  • SBL OSPI NOR performance (HS-FS)
  • SBL OSPI NOR performance (HS)
  • SBL EMMC performance (HS-FS)
  • SBL EMMC performance (HS)
  • CPSW Performance
  • IPC performance
    • IPC NOTIFY
    • IPC RPMSG
  • EMMC Performance
  • OSPI NOR Flash Performance
  • GPIO latency

Introduction

This datasheet provides the performance numbers of various device drivers in MCU PLUS SDK for AM62PX

Generic Setup details

SOC Details	Values
Core	R5F
Core Operating Speed	800 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

SBL OSPI NOR performance (HS-FS)

• Software/Application used : sbl_ospi_linux_multistage, ipc_rpmsg_echo_linux, linux and HSM App Images
• Cores booted by stage1 SBL : wkup-r5f0-0
• Cores booted by stage2 SBL : hsm-m4f0-0 mcu-r5f0-0 a530-0
• Size of images loaded by stage1 : 257 KB
• Size of images loaded by stage2 : 1061 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	28.049
SBL Stage1: App_waitForMcuPbist	0.002
SBL Stage1: Board_init	0.000
SBL Stage1: Drivers_open	0.000
SBL Stage1: SBL Drivers_open	0.153
SBL Stage1: Board_driversOpen	0.000
SBL Stage1: SBL Board_driversOpen	7.028
SBL Stage1: App_loadSelfcoreImage	5.203
-------------------------------------—	-----------—
SBL Stage1: Total time taken	40.439

SBL Stage2 boot time breakdown	Time (ms)
SBL Stage2: System_init	2.179
SBL Stage2: Board_init	0.003
SBL Stage2: FreeRtosTask Create	0.260
SBL Stage2: SBL Drivers_open	0.993
SBL Stage2: SBL Board_driversOpen	0.522
SBL Stage2: App_loadImages	5.444
SBL Stage2: App_loadMCUImages	5.963
SBL Stage2: App_loadLinuxImages	14.506
-------------------------------------—	-----------—
SBL Stage2: Total time taken	29.873

• 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 ~38 ms taken for System Init is mostly attributed to DDR initialization.

SBL OSPI NOR performance (HS)

• Software/Application used : sbl_ospi_linux_multistage, ipc_rpmsg_echo_linux, linux and HSM App Images
• Cores booted by stage1 SBL : wkup-r5f0-0
• Cores booted by stage2 SBL : hsm-m4f0-0 mcu-r5f0-0 a530-0
• Size of images loaded by stage1 : 257 KB
• Size of images loaded by stage2 : 1061 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	28.190
SBL Stage1: App_waitForMcuPbist	0.002
SBL Stage1: Board_init	0.000
SBL Stage1: Drivers_open	0.000
SBL Stage1: SBL Drivers_open	0.153
SBL Stage1: Board_driversOpen	0.000
SBL Stage1: SBL Board_driversOpen	6.930
SBL Stage1: App_loadSelfcoreImage	5.210
-------------------------------------—	-----------—
SBL Stage1: Total time taken	40.489

SBL Stage2 boot time breakdown	Time (ms)
SBL Stage2: System_init	2.178
SBL Stage2: Board_init	0.004
SBL Stage2: FreeRtosTask Create	0.259
SBL Stage2: SBL Drivers_open	0.997
SBL Stage2: SBL Board_driversOpen	0.519
SBL Stage2: App_loadImages	5.457
SBL Stage2: App_loadMCUImages	5.948
SBL Stage2: App_loadLinuxImages	14.531
-------------------------------------—	-----------—
SBL Stage2: Total time taken	29.896

• 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 ~38 ms taken for System Init is mostly attributed to DDR initialization.

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 : wkup-r5f0-0
• Cores booted by stage2 SBL : hsm-m4f0-0 mcu-r5f0-0 a530-0
• Size of images loaded by stage1 : 230 KB
• Size of images loaded by stage2 : 1116 KB
• Boot Media Clock : 200.00 MHz
• Mode : HS400

SBL Stage1 boot time breakdown	Time (ms)
SBL Stage1: System_init	27.932
SBL Stage1: Board_init	0.000
SBL Stage1: Drivers_open	0.000
SBL Stage1: SBL Drivers_open	21.534
SBL Stage1: Board_driversOpen	0.000
SBL Stage1: App_loadSelfcoreImage	8.870
-------------------------------------—	-----------—
SBL Stage1: Total time taken	58.338

SBL Stage2 boot time breakdown	Time (ms)
SBL Stage2: System_init	2.010
SBL Stage2: Board_init	0.000
SBL Stage2: FreeRtosTask Create	0.302
SBL Stage2: SBL Drivers_open	24.225
SBL Stage2: App_loadImages	5.757
SBL Stage2: App_loadMCUImages	7.218
SBL Stage2: App_loadLinuxImages	16.560
-------------------------------------—	-----------—
SBL Stage2: Total time taken	56.076

• 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
• Out of the ~38 ms taken for System Init is mostly attributed to DDR initialization.

SBL EMMC performance (HS)

• Software/Application used : sbl_emmc_linux_multistage, ipc_rpmsg_echo_linux, linux and HSM App Images
• Cores booted by stage1 SBL : wkup-r5f0-0
• Cores booted by stage2 SBL : hsm-m4f0-0 mcu-r5f0-0 a530-0
• Size of images loaded by stage1 : 230 KB
• Size of images loaded by stage2 : 1116 KB
• Boot Media Clock : 200.00 MHz
• Mode : HS400

SBL Stage1 boot time breakdown	Time (ms)
SBL Stage1: System_init	27.828
SBL Stage1: Board_init	0.000
SBL Stage1: Drivers_open	0.000
SBL Stage1: SBL Drivers_open	21.508
SBL Stage1: Board_driversOpen	0.000
SBL Stage1: App_loadSelfcoreImage	8.904
-------------------------------------—	-----------—
SBL Stage1: Total time taken	58.242

SBL Stage2 boot time breakdown	Time (ms)
SBL Stage2: System_init	1.998
SBL Stage2: Board_init	0.000
SBL Stage2: FreeRtosTask Create	0.302
SBL Stage2: SBL Drivers_open	24.042
SBL Stage2: App_loadImages	5.769
SBL Stage2: App_loadMCUImages	7.244
SBL Stage2: App_loadLinuxImages	16.576
-------------------------------------—	-----------—
SBL Stage2: Total time taken	55.934

• 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
• Out of the ~38 ms taken for System Init is mostly attributed to DDR initialization.

CPSW Performance

For CPSW performance refer Ethernet Performance on AM62P

IPC performance

IPC NOTIFY

• 10000 messages are sent and average one way message latency is measured

Local Core	Remote Core	Average Message Latency (us)
wkup-r5f0-0	mcu-r5f0-0	1.24

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)	Message Count
wkup-r5f0-0	mcu-r5f0-0	32	14.864	16	1000
wkup-r5f0-0	mcu-r5f0-0	64	21.329	22	1000
wkup-r5f0-0	mcu-r5f0-0	112	30.945	32	1000

EMMC Performance

Mode	Data size(MiB)	Write speed(MiBps)	Read speed(MiBps)
SDR50	1	9.41	45.00
SDR50	4	28.41	45.55
SDR50	6	41.63	45.58
SDR50	32	39.39	45.08
SDR50	40	38.74	44.32
DDR50	1	10.58	82.26
DDR50	4	41.90	83.64
DDR50	6	70.90	79.32
DDR50	32	63.52	82.96
DDR50	40	65.58	83.17
HS200	1	71.49	162.24
HS200	4	106.83	169.39
HS200	6	73.28	151.96
HS200	32	96.16	166.56
HS200	40	93.07	167.41
HS400	1	70.77	243.80
HS400	4	107.60	266.76
HS400	6	107.88	222.71
HS400	32	91.83	255.36
HS400	40	95.79	258.51

OSPI NOR Flash Performance

DQS Tuning Algorithm	Tuning Time (ms)
Default Tuning Window	9.65 ms
Fast Tuning Window	6.43 ms

• Flash frequency: 25Mhz
• Flash protocol: FLASH_CFG_PROTO_8D_8D_8D
• Phy Condition: disabled

Data Size(MiB)	READ MODE	DMA Enabled	Write Speed(mbps)	Read Speed(mbps)
1	DAC	No	0.41	2.87
5	DAC	No	0.42	2.87
10	DAC	No	0.42	2.87
1	DAC	Yes	0.41	48.72
5	DAC	Yes	0.42	48.76
10	DAC	Yes	0.42	48.76

• Flash frequency: 50Mhz
• Flash protocol: FLASH_CFG_PROTO_1S_1S_1S
• Phy Condition: disabled

Data Size(MiB)	READ MODE	DMA Enabled	Write Speed(mbps)	Read Speed(mbps)
1	DAC	No	0.39	5.87
5	DAC	No	0.40	5.87
10	DAC	No	0.40	5.87
1	DAC	Yes	0.39	6.23
5	DAC	Yes	0.40	6.23
10	DAC	Yes	0.40	6.23

• Flash frequency: 133Mhz
• Flash protocol: FLASH_CFG_PROTO_8D_8D_8D
• Phy Condition: enabled

Data Size(MiB)	READ MODE	DMA Enabled	Write Speed(mbps)	Read Speed(mbps)
1	DAC	No	0.41	6.38
5	DAC	No	0.42	6.38
10	DAC	No	0.42	6.38
1	DAC	Yes	0.41	233.80
5	DAC	Yes	0.42	234.65
10	DAC	Yes	0.42	234.76

• Flash frequency: 166Mhz
• Flash protocol: FLASH_CFG_PROTO_8D_8D_8D
• Phy Condition: enabled

Data Size(MiB)	READ MODE	DMA Enabled	Write Speed(mbps)	Read Speed(mbps)
1	DAC	No	0.42	7.04
5	DAC	No	0.42	7.04
10	DAC	No	0.42	7.04
1	DAC	Yes	0.41	283.56
5	DAC	Yes	0.42	284.77
10	DAC	Yes	0.42	284.92

• Flash frequency: 25Mhz
• Flash protocol: FLASH_CFG_PROTO_8D_8D_8D
• Phy Condition: disabled

Data Size(MiB)	READ MODE	DMA Enabled	Write Speed(mbps)	Read Speed(mbps)
1	INDAC	No	0.41	13.91
5	INDAC	No	0.42	13.91
10	INDAC	No	0.42	13.91

• Flash frequency: 50Mhz
• Flash protocol: FLASH_CFG_PROTO_1S_1S_1S
• Phy Condition: disabled

Data Size(MiB)	READ MODE	DMA Enabled	Write Speed(mbps)	Read Speed(mbps)
1	INDAC	No	0.39	6.25
5	INDAC	No	0.40	6.25
10	INDAC	No	0.40	6.25

GPIO latency

GPIO latency is measured by connecting 2 GPIOs externaly and configuring one GPIO as input and the other as output. Then 1 is written to GPIO output and measure the time between writing 1 to GPIO output to rececving the interrupt at GPIO input.

Core	GPIO In	GPIO Out	Latency (us)
mcu-r5f	MCU_GPIO0_15	MCU_GPIO0_16	2