hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

[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: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
This commit is contained in:
Lennert Buytenhek 2005-11-23 12:49:55 +01:00 committed by Jeff Garzik
parent df86550602
commit c6e429bdd6
1 changed files with 31 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
drivers/net/ixp2000/pm3386.c
View File

@ -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)