On Tue, 29 Oct 2019 at 14:08, Suneel Garapati <suneelgli...@gmail.com> wrote: > > From: Suneel Garapati <sgarap...@marvell.com> > > For platforms that support 64bit physical address, fill upper 32bit > of buffer address in scatter-gather descriptor. This is needed for > platforms with more than 4GB DRAM. > > Signed-off-by: Suneel Garapati <sgarap...@marvell.com> > --- > drivers/ata/ahci.c | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c > index ca075b58bc..5f929700c0 100644 > --- a/drivers/ata/ahci.c > +++ b/drivers/ata/ahci.c > @@ -506,6 +506,11 @@ static int ahci_fill_sg(struct ahci_uc_priv *uc_priv, u8 > port, > ahci_sg->addr = > cpu_to_le32((unsigned long) buf + i * > MAX_DATA_BYTE_COUNT); > ahci_sg->addr_hi = 0; > +#ifdef CONFIG_PHYS_64BIT > + ahci_sg->addr_hi = > + cpu_to_le32((u32)(((u64)(buf + i * MAX_DATA_BYTE_COUNT) > + >> 16) >> 16));
How about something like: ulong addr = (ulong)buf + i * MAX_DATA_BYTE_COUNT; ahci_sg->addr = cpu_to_le32(addr); ahci_sg->addr_hi = 0; #ifdef CONFIG_PHYS_64BIT ahci_sg->addr_hi = addr >> 32ULL; #endif Regards, Simon _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
