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Commit c6e429bd authored by Lennert Buytenhek's avatar Lennert Buytenhek Committed by Jeff Garzik
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[PATCH] pm3386: implement reset 



Implement pm3386 reset.  A reset zeroes out the internally stored MAC
addresses, so we need to save and reload them by hand.

Signed-off-by: default avatarLennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: default avatarJeff Garzik <jgarzik@pobox.com>
parent df865506

drivers/net/ixp2000/pm3386.c

+31 −1
Original line number Diff line number Diff line
@@ -89,7 +89,37 @@ static void pm3386_port_reg_write(int port, int _reg, int spacing, u16 value) 


void pm3386_reset(void)

{

	/* @@@ Implement me.  */

	u8 mac[3][6];



	/* Save programmed MAC addresses.  */

	pm3386_get_mac(0, mac[0]);

	pm3386_get_mac(1, mac[1]);

	pm3386_get_mac(2, mac[2]);



	/* Assert analog and digital reset.  */

	pm3386_reg_write(0, 0x002, 0x0060);

	pm3386_reg_write(1, 0x002, 0x0060);

	mdelay(1);



	/* Deassert analog reset.  */

	pm3386_reg_write(0, 0x002, 0x0062);

	pm3386_reg_write(1, 0x002, 0x0062);

	mdelay(10);



	/* Deassert digital reset.  */

	pm3386_reg_write(0, 0x002, 0x0063);

	pm3386_reg_write(1, 0x002, 0x0063);

	mdelay(10);



	/* Restore programmed MAC addresses.  */

	pm3386_set_mac(0, mac[0]);

	pm3386_set_mac(1, mac[1]);

	pm3386_set_mac(2, mac[2]);



	/* Disable carrier on all ports.  */

	pm3386_set_carrier(0, 0);

	pm3386_set_carrier(1, 0);

	pm3386_set_carrier(2, 0);

}



static u16 swaph(u16 x)