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authorStefan Roese <sr@denx.de>2015-06-29 14:58:12 +0200
committerLuka Perkov <luka.perkov@sartura.hr>2015-07-10 14:55:25 +0200
commit2cc1aa2e0010249fe671e38eb412d0cbefb0bf73 (patch)
tree8dcd061a48564cadfba131a2b17d50cef46ea4a3 /drivers/block
parente80f1e85d6010ca9d19edf2ec333cf30af6cbbd0 (diff)
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block: ahci: Don't enable port interrupts
This patch changes the initialization of the AHCI controller to not enable the default interrupts (DEF_PORT_IRQ). As interrupts are not used in U-Boot in general, this should not break the common AHCI driver operation. This change is needed to support the Marvell Armada 38x AHCI controller. With interrupts enabled, this results in timeouts in ahci_device_data_io(). Not enabling these interrupts fixes this problem and the common AHCI driver works fine. Signed-off-by: Stefan Roese <sr@denx.de> Reviewed-by: Simon Glass <sjg@chromium.org> Cc: Tom Rini <trini@konsulko.com> Cc: Hans de Goede <hdegoede@redhat.com> Cc: Luka Perkov <luka.perkov@sartura.hr>
Diffstat (limited to 'drivers/block')
-rw-r--r--drivers/block/ahci.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/drivers/block/ahci.c b/drivers/block/ahci.c
index 4fb846a..9bab0fc 100644
--- a/drivers/block/ahci.c
+++ b/drivers/block/ahci.c
@@ -299,9 +299,6 @@ static int ahci_host_init(struct ahci_probe_ent *probe_ent)
writel(1 << i, mmio + HOST_IRQ_STAT);
- /* set irq mask (enables interrupts) */
- writel(DEF_PORT_IRQ, port_mmio + PORT_IRQ_MASK);
-
/* register linkup ports */
tmp = readl(port_mmio + PORT_SCR_STAT);
debug("SATA port %d status: 0x%x\n", i, tmp);