[U-Boot,07/11] usb: usbeth: smsc95xx: remove EEPROM loaded check

Submitted by Simon Glass on Dec. 13, 2012, 1:55 a.m.

Details

Message ID 1355363731-10103-8-git-send-email-sjg@chromium.org
State Superseded, archived
Delegated to: Marek Vasut
Headers show

Commit Message

Simon Glass Dec. 13, 2012, 1:55 a.m.
From: Michael Spang <spang@chromium.org>

[port of Linux kernel commit bcd218be5aeb by Steve Glendinning]

The eeprom read & write commands currently check the E2P_CMD_LOADED_ bit is
set before allowing any operations.  This prevents any reading or writing
unless a correctly programmed EEPROM is installed.

Signed-off-by: Michael Spang <spang@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
---
 drivers/usb/eth/smsc95xx.c |    4 ----
 1 files changed, 0 insertions(+), 4 deletions(-)

Comments

Marek Vasut Dec. 13, 2012, 5:35 p.m.
Dear Simon Glass,

> From: Michael Spang <spang@chromium.org>
> 
> [port of Linux kernel commit bcd218be5aeb by Steve Glendinning]
> 
> The eeprom read & write commands currently check the E2P_CMD_LOADED_ bit is
> set before allowing any operations.  This prevents any reading or writing
> unless a correctly programmed EEPROM is installed.
> 
> Signed-off-by: Michael Spang <spang@chromium.org>
> Signed-off-by: Simon Glass <sjg@chromium.org>

Acked-by: Marek Vasut <marex@denx.de>

> ---
>  drivers/usb/eth/smsc95xx.c |    4 ----
>  1 files changed, 0 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/usb/eth/smsc95xx.c b/drivers/usb/eth/smsc95xx.c
> index dc5ca65..fd8f8a7 100644
> --- a/drivers/usb/eth/smsc95xx.c
> +++ b/drivers/usb/eth/smsc95xx.c
> @@ -265,10 +265,6 @@ static int smsc95xx_eeprom_confirm_not_busy(struct
> ueth_data *dev)
> 
>  	do {
>  		smsc95xx_read_reg(dev, E2P_CMD, &val);
> -		if (!(val & E2P_CMD_LOADED_)) {
> -			debug("No EEPROM present\n");
> -			return -1;
> -		}
>  		if (!(val & E2P_CMD_BUSY_))
>  			return 0;
>  		udelay(40);

Best regards,
Marek Vasut

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diff --git a/drivers/usb/eth/smsc95xx.c b/drivers/usb/eth/smsc95xx.c
index dc5ca65..fd8f8a7 100644
--- a/drivers/usb/eth/smsc95xx.c
+++ b/drivers/usb/eth/smsc95xx.c
@@ -265,10 +265,6 @@  static int smsc95xx_eeprom_confirm_not_busy(struct ueth_data *dev)
 
 	do {
 		smsc95xx_read_reg(dev, E2P_CMD, &val);
-		if (!(val & E2P_CMD_LOADED_)) {
-			debug("No EEPROM present\n");
-			return -1;
-		}
 		if (!(val & E2P_CMD_BUSY_))
 			return 0;
 		udelay(40);