From: Li Jun <b47...@freescale.com>
This patch adds below registers dump for debug:
- USBINTR
- USBSTS
- USBMODE
- USBCMD
- PORTSC
- OTGSC
Signed-off-by: Peter Chen <peter.c...@freescale.com>
Acked-by: Peter Chen <peter.c...@freescale.com>
Signed-off-by: Li Jun <b47...@freescale.com>
---
drivers/usb/chipidea/debug.c | 51 ++++++++++++++++++++++++++++++++++++++++++
1 files changed, 51 insertions(+), 0 deletions(-)
diff --git a/drivers/usb/chipidea/debug.c b/drivers/usb/chipidea/debug.c
index 96d899a..5b890c1 100644
--- a/drivers/usb/chipidea/debug.c
+++ b/drivers/usb/chipidea/debug.c
@@ -12,6 +12,7 @@
#include "udc.h"
#include "bits.h"
#include "debug.h"
+#include "otg.h"
/**
* ci_device_show: prints information about device capabilities and status
@@ -253,6 +254,50 @@ static const struct file_operations ci_role_fops = {
.release = single_release,
};
+int ci_registers_show(struct seq_file *s, void *unused)
+{
+ struct ci_hdrc *ci = s->private;
+ u32 tmp_reg;
+
+ if (!ci)
+ return 0;
+
+ /* ------ Registers ----- */
+ tmp_reg = hw_read_intr_enable(ci);
+ seq_printf(s, "USBINTR reg: %08x\n", tmp_reg);
+
+ tmp_reg = hw_read_intr_status(ci);
+ seq_printf(s, "USBSTS reg: %08x\n", tmp_reg);
+
+ tmp_reg = hw_read(ci, OP_USBMODE, ~0);
+ seq_printf(s, "USBMODE reg: %08x\n", tmp_reg);
+
+ tmp_reg = hw_read(ci, OP_USBCMD, ~0);
+ seq_printf(s, "USBCMD reg: %08x\n", tmp_reg);
+
+ tmp_reg = hw_read(ci, OP_PORTSC, ~0);
+ seq_printf(s, "PORTSC reg: %08x\n", tmp_reg);
+
+ if (ci->is_otg) {
+ tmp_reg = hw_read_otgsc(ci, ~0);
+ seq_printf(s, "OTGSC reg: %08x\n", tmp_reg);
+ }
+
+ return 0;
+}
+
+static int ci_registers_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, ci_registers_show, inode->i_private);
+}
+
+static const struct file_operations ci_registers_fops = {
+ .open = ci_registers_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
/**
* dbg_create_files: initializes the attribute interface
* @ci: device
@@ -289,6 +334,12 @@ int dbg_create_files(struct ci_hdrc *ci)
dent = debugfs_create_file("role", S_IRUGO | S_IWUSR, ci->debugfs, ci,
&ci_role_fops);
+ if (!dent)
+ goto err;
+
+ dent = debugfs_create_file("registers", S_IRUGO, ci->debugfs, ci,
+ &ci_registers_fops);
+
if (dent)
return 0;
err:
--
1.7.8
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
