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path: root/drivers/mtd/devices/docg3.c
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Diffstat (limited to 'drivers/mtd/devices/docg3.c')
-rw-r--r--drivers/mtd/devices/docg3.c123
1 files changed, 62 insertions, 61 deletions
diff --git a/drivers/mtd/devices/docg3.c b/drivers/mtd/devices/docg3.c
index 21cc4b66feaa..448ce42f951e 100644
--- a/drivers/mtd/devices/docg3.c
+++ b/drivers/mtd/devices/docg3.c
@@ -22,6 +22,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/errno.h>
+#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/string.h>
#include <linux/slab.h>
@@ -1655,22 +1656,21 @@ static int dbg_flashctrl_show(struct seq_file *s, void *p)
{
struct docg3 *docg3 = (struct docg3 *)s->private;
- int pos = 0;
u8 fctrl;
mutex_lock(&docg3->cascade->lock);
fctrl = doc_register_readb(docg3, DOC_FLASHCONTROL);
mutex_unlock(&docg3->cascade->lock);
- pos += seq_printf(s,
- "FlashControl : 0x%02x (%s,CE# %s,%s,%s,flash %s)\n",
- fctrl,
- fctrl & DOC_CTRL_VIOLATION ? "protocol violation" : "-",
- fctrl & DOC_CTRL_CE ? "active" : "inactive",
- fctrl & DOC_CTRL_PROTECTION_ERROR ? "protection error" : "-",
- fctrl & DOC_CTRL_SEQUENCE_ERROR ? "sequence error" : "-",
- fctrl & DOC_CTRL_FLASHREADY ? "ready" : "not ready");
- return pos;
+ seq_printf(s, "FlashControl : 0x%02x (%s,CE# %s,%s,%s,flash %s)\n",
+ fctrl,
+ fctrl & DOC_CTRL_VIOLATION ? "protocol violation" : "-",
+ fctrl & DOC_CTRL_CE ? "active" : "inactive",
+ fctrl & DOC_CTRL_PROTECTION_ERROR ? "protection error" : "-",
+ fctrl & DOC_CTRL_SEQUENCE_ERROR ? "sequence error" : "-",
+ fctrl & DOC_CTRL_FLASHREADY ? "ready" : "not ready");
+
+ return 0;
}
DEBUGFS_RO_ATTR(flashcontrol, dbg_flashctrl_show);
@@ -1678,58 +1678,56 @@ static int dbg_asicmode_show(struct seq_file *s, void *p)
{
struct docg3 *docg3 = (struct docg3 *)s->private;
- int pos = 0, pctrl, mode;
+ int pctrl, mode;
mutex_lock(&docg3->cascade->lock);
pctrl = doc_register_readb(docg3, DOC_ASICMODE);
mode = pctrl & 0x03;
mutex_unlock(&docg3->cascade->lock);
- pos += seq_printf(s,
- "%04x : RAM_WE=%d,RSTIN_RESET=%d,BDETCT_RESET=%d,WRITE_ENABLE=%d,POWERDOWN=%d,MODE=%d%d (",
- pctrl,
- pctrl & DOC_ASICMODE_RAM_WE ? 1 : 0,
- pctrl & DOC_ASICMODE_RSTIN_RESET ? 1 : 0,
- pctrl & DOC_ASICMODE_BDETCT_RESET ? 1 : 0,
- pctrl & DOC_ASICMODE_MDWREN ? 1 : 0,
- pctrl & DOC_ASICMODE_POWERDOWN ? 1 : 0,
- mode >> 1, mode & 0x1);
+ seq_printf(s,
+ "%04x : RAM_WE=%d,RSTIN_RESET=%d,BDETCT_RESET=%d,WRITE_ENABLE=%d,POWERDOWN=%d,MODE=%d%d (",
+ pctrl,
+ pctrl & DOC_ASICMODE_RAM_WE ? 1 : 0,
+ pctrl & DOC_ASICMODE_RSTIN_RESET ? 1 : 0,
+ pctrl & DOC_ASICMODE_BDETCT_RESET ? 1 : 0,
+ pctrl & DOC_ASICMODE_MDWREN ? 1 : 0,
+ pctrl & DOC_ASICMODE_POWERDOWN ? 1 : 0,
+ mode >> 1, mode & 0x1);
switch (mode) {
case DOC_ASICMODE_RESET:
- pos += seq_puts(s, "reset");
+ seq_puts(s, "reset");
break;
case DOC_ASICMODE_NORMAL:
- pos += seq_puts(s, "normal");
+ seq_puts(s, "normal");
break;
case DOC_ASICMODE_POWERDOWN:
- pos += seq_puts(s, "powerdown");
+ seq_puts(s, "powerdown");
break;
}
- pos += seq_puts(s, ")\n");
- return pos;
+ seq_puts(s, ")\n");
+ return 0;
}
DEBUGFS_RO_ATTR(asic_mode, dbg_asicmode_show);
static int dbg_device_id_show(struct seq_file *s, void *p)
{
struct docg3 *docg3 = (struct docg3 *)s->private;
- int pos = 0;
int id;
mutex_lock(&docg3->cascade->lock);
id = doc_register_readb(docg3, DOC_DEVICESELECT);
mutex_unlock(&docg3->cascade->lock);
- pos += seq_printf(s, "DeviceId = %d\n", id);
- return pos;
+ seq_printf(s, "DeviceId = %d\n", id);
+ return 0;
}
DEBUGFS_RO_ATTR(device_id, dbg_device_id_show);
static int dbg_protection_show(struct seq_file *s, void *p)
{
struct docg3 *docg3 = (struct docg3 *)s->private;
- int pos = 0;
int protect, dps0, dps0_low, dps0_high, dps1, dps1_low, dps1_high;
mutex_lock(&docg3->cascade->lock);
@@ -1742,45 +1740,40 @@ static int dbg_protection_show(struct seq_file *s, void *p)
dps1_high = doc_register_readw(docg3, DOC_DPS1_ADDRHIGH);
mutex_unlock(&docg3->cascade->lock);
- pos += seq_printf(s, "Protection = 0x%02x (",
- protect);
+ seq_printf(s, "Protection = 0x%02x (", protect);
if (protect & DOC_PROTECT_FOUNDRY_OTP_LOCK)
- pos += seq_puts(s, "FOUNDRY_OTP_LOCK,");
+ seq_puts(s, "FOUNDRY_OTP_LOCK,");
if (protect & DOC_PROTECT_CUSTOMER_OTP_LOCK)
- pos += seq_puts(s, "CUSTOMER_OTP_LOCK,");
+ seq_puts(s, "CUSTOMER_OTP_LOCK,");
if (protect & DOC_PROTECT_LOCK_INPUT)
- pos += seq_puts(s, "LOCK_INPUT,");
+ seq_puts(s, "LOCK_INPUT,");
if (protect & DOC_PROTECT_STICKY_LOCK)
- pos += seq_puts(s, "STICKY_LOCK,");
+ seq_puts(s, "STICKY_LOCK,");
if (protect & DOC_PROTECT_PROTECTION_ENABLED)
- pos += seq_puts(s, "PROTECTION ON,");
+ seq_puts(s, "PROTECTION ON,");
if (protect & DOC_PROTECT_IPL_DOWNLOAD_LOCK)
- pos += seq_puts(s, "IPL_DOWNLOAD_LOCK,");
+ seq_puts(s, "IPL_DOWNLOAD_LOCK,");
if (protect & DOC_PROTECT_PROTECTION_ERROR)
- pos += seq_puts(s, "PROTECT_ERR,");
+ seq_puts(s, "PROTECT_ERR,");
else
- pos += seq_puts(s, "NO_PROTECT_ERR");
- pos += seq_puts(s, ")\n");
-
- pos += seq_printf(s, "DPS0 = 0x%02x : "
- "Protected area [0x%x - 0x%x] : OTP=%d, READ=%d, "
- "WRITE=%d, HW_LOCK=%d, KEY_OK=%d\n",
- dps0, dps0_low, dps0_high,
- !!(dps0 & DOC_DPS_OTP_PROTECTED),
- !!(dps0 & DOC_DPS_READ_PROTECTED),
- !!(dps0 & DOC_DPS_WRITE_PROTECTED),
- !!(dps0 & DOC_DPS_HW_LOCK_ENABLED),
- !!(dps0 & DOC_DPS_KEY_OK));
- pos += seq_printf(s, "DPS1 = 0x%02x : "
- "Protected area [0x%x - 0x%x] : OTP=%d, READ=%d, "
- "WRITE=%d, HW_LOCK=%d, KEY_OK=%d\n",
- dps1, dps1_low, dps1_high,
- !!(dps1 & DOC_DPS_OTP_PROTECTED),
- !!(dps1 & DOC_DPS_READ_PROTECTED),
- !!(dps1 & DOC_DPS_WRITE_PROTECTED),
- !!(dps1 & DOC_DPS_HW_LOCK_ENABLED),
- !!(dps1 & DOC_DPS_KEY_OK));
- return pos;
+ seq_puts(s, "NO_PROTECT_ERR");
+ seq_puts(s, ")\n");
+
+ seq_printf(s, "DPS0 = 0x%02x : Protected area [0x%x - 0x%x] : OTP=%d, READ=%d, WRITE=%d, HW_LOCK=%d, KEY_OK=%d\n",
+ dps0, dps0_low, dps0_high,
+ !!(dps0 & DOC_DPS_OTP_PROTECTED),
+ !!(dps0 & DOC_DPS_READ_PROTECTED),
+ !!(dps0 & DOC_DPS_WRITE_PROTECTED),
+ !!(dps0 & DOC_DPS_HW_LOCK_ENABLED),
+ !!(dps0 & DOC_DPS_KEY_OK));
+ seq_printf(s, "DPS1 = 0x%02x : Protected area [0x%x - 0x%x] : OTP=%d, READ=%d, WRITE=%d, HW_LOCK=%d, KEY_OK=%d\n",
+ dps1, dps1_low, dps1_high,
+ !!(dps1 & DOC_DPS_OTP_PROTECTED),
+ !!(dps1 & DOC_DPS_READ_PROTECTED),
+ !!(dps1 & DOC_DPS_WRITE_PROTECTED),
+ !!(dps1 & DOC_DPS_HW_LOCK_ENABLED),
+ !!(dps1 & DOC_DPS_KEY_OK));
+ return 0;
}
DEBUGFS_RO_ATTR(protection, dbg_protection_show);
@@ -2126,10 +2119,18 @@ static int __exit docg3_release(struct platform_device *pdev)
return 0;
}
+#ifdef CONFIG_OF
+static struct of_device_id docg3_dt_ids[] = {
+ { .compatible = "m-systems,diskonchip-g3" },
+ {}
+};
+MODULE_DEVICE_TABLE(of, docg3_dt_ids);
+#endif
+
static struct platform_driver g3_driver = {
.driver = {
.name = "docg3",
- .owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(docg3_dt_ids),
},
.suspend = docg3_suspend,
.resume = docg3_resume,
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