On Thu, Apr 10, 2014 at 08:23:41PM +0400, Alexander Shiyan wrote:
> Use SPI module software reset to simplify cspi_0_0_init().
>
> Signed-off-by: Alexander Shiyan <shc_work@xxxxxxx>
Applied, thanks
Sascha
> ---
> drivers/spi/imx_spi.c | 12 +++++-------
> 1 file changed, 5 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/spi/imx_spi.c b/drivers/spi/imx_spi.c
> index 45461bd..3c1ba61 100644
> --- a/drivers/spi/imx_spi.c
> +++ b/drivers/spi/imx_spi.c
> @@ -67,6 +67,8 @@
>
> #define CSPI_0_0_TEST_LBC (1 << 14)
>
> +#define CSPI_0_0_RESET_START (1 << 0)
> +
> #define CSPI_0_7_RXDATA 0x00
> #define CSPI_0_7_TXDATA 0x04
> #define CSPI_0_7_CTRL 0x08
> @@ -197,13 +199,9 @@ static void cspi_0_0_init(struct imx_spi *imx)
> {
> void __iomem *base = imx->regs;
>
> - writel(CSPI_0_0_CTRL_ENABLE | CSPI_0_0_CTRL_MASTER,
> - base + CSPI_0_0_CTRL);
> - writel(CSPI_0_0_PERIOD_32KHZ,
> - base + CSPI_0_0_PERIOD);
> - while (readl(base + CSPI_0_0_INT) & CSPI_0_0_STAT_RR)
> - readl(base + CSPI_0_0_RXDATA);
> - writel(0, base + CSPI_0_0_INT);
> + writel(CSPI_0_0_RESET_START, base + CSPI_0_0_RESET);
> + do {
> + } while (readl(base + CSPI_0_0_RESET) & CSPI_0_0_RESET_START);
> }
>
> static unsigned int cspi_0_7_xchg_single(struct imx_spi *imx, unsigned int data)
> --
> 1.8.3.2
>
>
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