From 7ba7917c91b875d1cd54dadfcca07d839b75e2a5 Mon Sep 17 00:00:00 2001
From: Stefan Reinauer <reinauer@chromium.org>
Date: Mon, 29 Oct 2012 05:23:50 +0000
Subject: [PATCH] ahci: Improve AHCI debugging
- remove unused ssleep macro
- add some useful debugging information
Signed-off-by: Stefan Reinauer <reinauer@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
---
drivers/block/ahci.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/block/ahci.c b/drivers/block/ahci.c
index ad397dcb6a..af31c97533 100644
--- a/drivers/block/ahci.c
+++ b/drivers/block/ahci.c
@@ -68,7 +68,6 @@ static void ahci_setup_port(struct ahci_ioports *port, unsigned long base,
#define msleep(a) udelay(a * 1000)
-#define ssleep(a) msleep(a * 1000)
static int waiting_for_cmd_completed(volatile u8 *offset,
int timeout_msec,
@@ -153,6 +152,7 @@ static int ahci_host_init(struct ahci_probe_ent *probe_ent)
tmp = readl(port_mmio + PORT_CMD);
if (tmp & (PORT_CMD_LIST_ON | PORT_CMD_FIS_ON |
PORT_CMD_FIS_RX | PORT_CMD_START)) {
+ debug("Port %d is active. Deactivating.\n", i);
tmp &= ~(PORT_CMD_LIST_ON | PORT_CMD_FIS_ON |
PORT_CMD_FIS_RX | PORT_CMD_START);
writel_with_flush(tmp, port_mmio + PORT_CMD);
@@ -163,6 +163,7 @@ static int ahci_host_init(struct ahci_probe_ent *probe_ent)
msleep(500);
}
+ debug("Spinning up port %d... ", i);
writel(PORT_CMD_SPIN_UP, port_mmio + PORT_CMD);
j = 0;
--
2.39.5