Tool/software: Linux
Hello,
I can get CLK and DATA of MCSPI1 by "spidev_test.c", but I can not get any signals ( CLK or DATA ) in MCSPI2 when I key command "spidev_test -D /dev/spidev2.0".
I modified the following for MCSPI2
1. in "spi-omap2-mcspi.c", shift address 0x14
/* per-channel banks, 0x14 bytes each, first is: */
#define OMAP2_MCSPI_CHCONF0 0x40 //0x2c // MCSPI_CHxCONF
#define OMAP2_MCSPI_CHSTAT0 0x44 //0x30
#define OMAP2_MCSPI_CHCTRL0 0x48 //0x34
#define OMAP2_MCSPI_TX0 0x4C //0x38
#define OMAP2_MCSPI_RX0 0x50 //0x3c
2. print to check the mcspi->base is FA09A100 in "spi-omap2-mcspi.c" when I run spidev_test.c
3. find 4 spidev in platform
crw------- 1 root root 153, 0 Jan 1 2000 /dev/spidev1.0
crw------- 1 root root 153, 1 Jan 1 2000 /dev/spidev2.0
crw------- 1 root root 153, 2 Jan 1 2000 /dev/spidev3.0
crw------- 1 root root 153, 3 Jan 1 2000 /dev/spidev4.0
how to control CLK and DATA of MCSPI2, could you help me, or give me some suggestions. thank you.
