Linux/AM3359: SPI Communication Enable Problem

changeb

Prodigy 50 points

Part Number: AM3359

Tool/software: Linux

Hi,

Now,I'm using the latest Linux SDK version v04.00 .When I want to enable SPI,there is a problem is that :

http://wiki.tiprocessors.com/index.php/AM335x_McSPI_Driver%27s_Guide

this page show us that we have to enable the "McSPI driver for OMAP" this option

but now I can't find the option below "SPI support"

Or it have another method in this SDK version?

Best Regards

Y.Chang

over 8 years ago

0 Pavel Botev over 8 years ago

TI__Guru**** 170625 points

Hi Chang,

For PSDK4, you should use the below wiki:

processors.wiki.ti.com/.../Linux_Core_SPI_User's_Guide

Regards,
Pavel

0 Yordan Kovachev over 8 years ago

TI__Guru**** 161600 points

Hi,

The following are enabled by default
CONFIG_SPI=y
CONFIG_SPI_MASTER=y

If you wish to use spidev from sysfs, you need to manually enable:
CONFIG_SPI_SPIDEV=y

this is done in arch/arm/configs/tisdk_am57xx-evm_defconfig

Best Regards,
Yordan

0 Cvetolin Shulev-XID over 8 years ago

TI__Guru 65405 points

Hi Chang,

See attached screenshot:

Also there are additional dependencies described in the make menuconfig help:

CONFIG_SPI_OMAP24XX:                                                                                                                                                                                        │
│ SPI master controller for OMAP24XX and later Multichannel SPI
│ (McSPI) modules.
│ Symbol: SPI_OMAP24XX [=y]
│ Type : tristate
│ Prompt: McSPI driver for OMAP
│   Location:
│     -> Device Drivers
│       -> SPI support (SPI [=y])
│   Defined at drivers/spi/Kconfig:427
│   Depends on: SPI [=y] && SPI_MASTER [=y] && HAS_DMA [=y] && (ARCH_OMAP2PLUS [=y] || COMPILE_TEST [=n])
│   Selects: SG_SPLIT [=y]

Tsvetolin Shulev

0 changeb over 8 years ago in reply to Cvetolin Shulev-XID

Prodigy 50 points

Thanks,I will check it.

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Linux/AM3359: SPI Communication Enable Problem