In the case where power is cut on suspend the SATA PHY state needs to be suspended on resume.
This is the case on the Salvator-X board with the r8a7795 or r8a7796 SoC. In that environment it has been observed that SATA partitions cannot not be accessed on resume. Based on work by Khiem Nguyen. Cc: Khiem Nguyen <[email protected]> Signed-off-by: Simon Horman <[email protected]> --- * Compile and boot tested only --- drivers/ata/sata_rcar.c | 9 +-------- 1 file changed, 1 insertion(+), 8 deletions(-) diff --git a/drivers/ata/sata_rcar.c b/drivers/ata/sata_rcar.c index 5d38245a7a73..4f4f7788a6cf 100644 --- a/drivers/ata/sata_rcar.c +++ b/drivers/ata/sata_rcar.c @@ -969,16 +969,9 @@ static int sata_rcar_resume(struct device *dev) { struct ata_host *host = dev_get_drvdata(dev); struct sata_rcar_priv *priv = host->private_data; - void __iomem *base = priv->base; clk_prepare_enable(priv->clk); - - /* ack and mask */ - iowrite32(0, base + SATAINTSTAT_REG); - iowrite32(0x7ff, base + SATAINTMASK_REG); - /* enable interrupts */ - iowrite32(ATAPI_INT_ENABLE_SATAINT, base + ATAPI_INT_ENABLE_REG); - + sata_rcar_init_controller(host); ata_host_resume(host); return 0; -- 2.7.0.rc3.207.g0ac5344
