Commit 7d997466 authored by Sebastien Jan's avatar Sebastien Jan Committed by David S. Miller
Browse files

ks8851: Add caching of CCR register 



CCR register contains information on companion eeprom availability.

Signed-off-by: default avatarSebastien Jan <s-jan@ti.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent d951f725

drivers/net/ks8851.c

+12 −0
Original line number Diff line number Diff line
@@ -78,7 +78,9 @@ union ks8851_tx_hdr { 
 * @msg_enable: The message flags controlling driver output (see ethtool).

 * @fid: Incrementing frame id tag.

 * @rc_ier: Cached copy of KS_IER.

 * @rc_ccr: Cached copy of KS_CCR.

 * @rc_rxqcr: Cached copy of KS_RXQCR.

 * @eeprom_size: Companion eeprom size in Bytes, 0 if no eeprom

 *

 * The @lock ensures that the chip is protected when certain operations are

 * in progress. When the read or write packet transfer is in progress, most
@@ -109,6 +111,8 @@ struct ks8851_net { 


	u16			rc_ier;

	u16			rc_rxqcr;

	u16			rc_ccr;

	u16			eeprom_size;



	struct mii_if_info	mii;

	struct ks8851_rxctrl	rxctrl;
@@ -1269,6 +1273,14 @@ static int __devinit ks8851_probe(struct spi_device *spi) 
		goto err_id;

	}



	/* cache the contents of the CCR register for EEPROM, etc. */

	ks->rc_ccr = ks8851_rdreg16(ks, KS_CCR);



	if (ks->rc_ccr & CCR_EEPROM)

		ks->eeprom_size = 128;

	else

		ks->eeprom_size = 0;



	ks8851_read_selftest(ks);

	ks8851_init_mac(ks);