[U-Boot] [PATCH 07/15] iMX28: Add SPI driver

Mike Frysinger
2011-09-12T16:35:10Z

On Monday, September 12, 2011 00:06:41 Marek Vasut wrote:
> +struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
> + unsigned int max_hz, unsigned int mode)
> +{
> +
> + mx28_reset_block(&ssp_regs->hw_ssp_ctrl0_reg);
> +
> + writel(SSP_CTRL0_BUS_WIDTH_ONE_BIT, &ssp_regs->hw_ssp_ctrl0);
> +
> + reg = SSP_CTRL1_SSP_MODE_SPI | SSP_CTRL1_WORD_LENGTH_EIGHT_BITS;
> + reg |= (mode & SPI_CPOL) ? SSP_CTRL1_POLARITY : 0;
> + reg |= (mode & SPI_CPHA) ? SSP_CTRL1_PHASE : 0;
> + writel(reg, &ssp_regs->hw_ssp_ctrl1);
> +
> + writel(0, &ssp_regs->hw_ssp_cmd0);
> +
> + mx28_set_ssp_busclock(bus, max_hz / 1000);

these steps should be done in the claim_bus func

> +void mxs_spi_start_xfer(struct spi_slave *slave)
> +void mxs_spi_end_xfer(struct spi_slave *slave)

both should be static
-mike
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