From: Oleksandr Rybalko ray@ddteam.net
In 32bits mode upper bits need to be set to 0, otherwise controller will try to DMA into not existing memory and stops with error.
Tested-by: Frank Wunderlich frank-w@public-files.de Signed-off-by: Frank Wunderlich frank-w@public-files.de Signed-off-by: Oleksandr Rybalko ray@ddteam.net --- drivers/ata/ahci.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index e3135bb75f..716f9c1c7e 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -593,10 +593,15 @@ static int ahci_port_start(struct ahci_uc_priv *uc_priv, u8 port) pp->cmd_tbl_sg = (struct ahci_sg *)(uintptr_t)virt_to_phys((void *)mem);
- writel_with_flush((unsigned long)pp->cmd_slot, - port_mmio + PORT_LST_ADDR); + writel_with_flush((u32)pp->cmd_slot, port_mmio + PORT_LST_ADDR); +#ifndef CONFIG_PHYS_64BIT + writel_with_flush(0, port_mmio + PORT_LST_ADDR_HI); +#endif
writel_with_flush(pp->rx_fis, port_mmio + PORT_FIS_ADDR); +#ifndef CONFIG_PHYS_64BIT + writel_with_flush(0, port_mmio + PORT_FIS_ADDR_HI); +#endif
#ifdef CONFIG_SUNXI_AHCI sunxi_dma_init(port_mmio); -- 2.17.1