[参考译文] AM62A7：概率段错误加载 SPI 驱动器

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https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1517697/am62a7-probabilistic-segment-error-loading-spi-driver

器件型号：AM62A7

工具/软件：

尊敬的专家：

我在 AM62A7上使用以下版本：

使用的 SDK 版本：09_02_00_05

Linux 版本6.1.80 (AArch64-OE-Linux-gcc (GCC) 11.4.0

执行加载和卸载 SPI 驱动程序时、工作正常。

root@am62axx-evm:/opt/edgeai-gst-apps#
root@am62axx-evm:/opt/edgeai-gst-apps# insmod /lib/modules/6.1.80/kernel/drivers/spi/spi-cadence-quadspi.ko
[  128.020258] ===== spi_nor_parse_smpt enter =====
[  128.024948] ===== spi_nor_parse_smpt 1 =====
[  128.029449] ===== spi_nor_parse_smpt 2 =====
[  128.033751] ===== spi_nor_parse_smpt 3 =====
[  128.038039] ===== spi_nor_get_map_in_use 1 =====
[  128.042664] ===== read_data_mask : 8=====
[  128.046687] addr_nbytes : 3, read_dummy: 0, read_opcode : 101
[  128.052447] spi_nor_read_raw addr : 0x800004
[  128.056770] addr : 0x800004, buf : 0, map_id : 4
[  128.061398] ===== read_data_mask : 64=====
[  128.065562] addr_nbytes : 3, read_dummy: 0, read_opcode : 101
[  128.071308] spi_nor_read_raw addr : 0x800002
[  128.075604] addr : 0x800002, buf : 0, map_id : 4
[  128.080232] ===== read_data_mask : 4=====
[  128.084244] addr_nbytes : 3, read_dummy: 0, read_opcode : 101
[  128.089989] spi_nor_read_raw addr : 0x800002
[  128.094286] addr : 0x800002, buf : 0, map_id : 4
[  128.098913] ===== spi_nor_get_map_in_use 2 =====
[  128.103530] smpt[6] : 0, map_id : 4
[  128.107023] smpt[10] : 1, map_id : 4
[  128.110599] smpt[14] : 2, map_id : 4
[  128.114173] smpt[20] : 4, map_id : 4
[  128.117748] ===== spi_nor_get_map_in_use 3 =====
[  128.122363] ===== ret : 92490704  =====
[  128.126203] ===== spi_nor_parse_smpt 4 =====
[  128.130475] ===== spi_nor_parse_smpt 5 =====
[  128.134839] spi-nor spi0.0: s28hs512t (65536 Kbytes)
[  128.139900] 2 fixed-partitions partitions found on MTD device fc40000.spi.0
[  128.146878] Creating 2 MTD partitions on "fc40000.spi.0":
[  128.152286] 0x000000000000-0x0000037c0000 : "ospi.tiboot3"
[  128.159341] 0x000003fc0000-0x000004000000 : "ospi.phypattern"
root@am62axx-evm:/opt/edgeai-gst-apps#
root@am62axx-evm:/opt/edgeai-gst-apps#
root@am62axx-evm:/opt/edgeai-gst-apps#
root@am62axx-evm:/opt/edgeai-gst-apps# rmmod -f spi_cadence_quadspi
[  131.744860] Deleting MTD partitions on "fc40000.spi.0":
[  131.750148] Deleting ospi.tiboot3 MTD partition
[  131.789582] Deleting ospi.phypattern MTD partition
[  131.818921] cadence-qspi fc40000.spi: Runtime PM usage count underflow!
root@am62axx-evm:/opt/edgeai-gst-apps#

但是、当再次执行加载 SPI 驱动程序时、概率 SPI 驱动程序(spi-cadence-quadspi.ko)加载段错误会发生、详细的错误报告可在附件 SPI 驱动程序 probability reload failure.zip 中找到。
帮助了解导致该问题的原因是什么？

e2e.ti.com/.../spi-driver-probability-reload-failure.zip

此致

3 个月前