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-rw-r--r--drivers/block/ahci.c24
1 files changed, 15 insertions, 9 deletions
diff --git a/drivers/block/ahci.c b/drivers/block/ahci.c
index d94da1f05..ad397dcb6 100644
--- a/drivers/block/ahci.c
+++ b/drivers/block/ahci.c
@@ -110,13 +110,15 @@ static int ahci_host_init(struct ahci_probe_ent *probe_ent)
/* reset must complete within 1 second, or
* the hardware should be considered fried.
*/
- ssleep(1);
-
- tmp = readl(mmio + HOST_CTL);
- if (tmp & HOST_RESET) {
- debug("controller reset failed (0x%x)\n", tmp);
- return -1;
- }
+ i = 1000;
+ do {
+ udelay(1000);
+ tmp = readl(mmio + HOST_CTL);
+ if (!i--) {
+ debug("controller reset failed (0x%x)\n", tmp);
+ return -1;
+ }
+ } while (tmp & HOST_RESET);
writel_with_flush(HOST_AHCI_EN, mmio + HOST_CTL);
writel(cap_save, mmio + HOST_CAP);
@@ -164,13 +166,17 @@ static int ahci_host_init(struct ahci_probe_ent *probe_ent)
writel(PORT_CMD_SPIN_UP, port_mmio + PORT_CMD);
j = 0;
- while (j < 100) {
- msleep(10);
+ while (j < 1000) {
tmp = readl(port_mmio + PORT_SCR_STAT);
if ((tmp & 0xf) == 0x3)
break;
+ udelay(1000);
j++;
}
+ if (j == 1000)
+ debug("timeout.\n");
+ else
+ debug("ok.\n");
tmp = readl(port_mmio + PORT_SCR_ERR);
debug("PORT_SCR_ERR 0x%x\n", tmp);