5cbc7ca987
This patch allows the board code to define SPI devices which needs to toggle the chip select after every word send. This is needed to get a better resolution reading e.g. an ADC data stream. Apart from that, as in the normal code CS is controlled by software, a transfer is done much faster. Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
31 lines
559 B
C
31 lines
559 B
C
#ifndef _OMAP2_MCSPI_H
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#define _OMAP2_MCSPI_H
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#define OMAP2_MCSPI_REV 0
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#define OMAP3_MCSPI_REV 1
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#define OMAP4_MCSPI_REV 2
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#define OMAP4_MCSPI_REG_OFFSET 0x100
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#define MCSPI_PINDIR_D0_IN_D1_OUT 0
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#define MCSPI_PINDIR_D0_OUT_D1_IN 1
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struct omap2_mcspi_platform_config {
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unsigned short num_cs;
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unsigned int regs_offset;
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unsigned int pin_dir:1;
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};
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struct omap2_mcspi_dev_attr {
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unsigned short num_chipselect;
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};
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struct omap2_mcspi_device_config {
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unsigned turbo_mode:1;
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/* toggle chip select after every word */
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unsigned cs_per_word:1;
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};
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#endif
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