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Forward-port reset-related changes from 5.4 tree.

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This commit is contained in:
Michael Brown 2006-06-16 14:00:43 +00:00
parent 968501e323
commit 50ab8c0e5b
1 changed files with 26 additions and 46 deletions
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72
src/drivers/net/etherfabric.c
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@ -495,22 +495,31 @@ struct efab_mentormac_parameters {
* Reset Mentor MAC
*
*/
static void mentormac_reset ( struct efab_nic *efab, int reset ) {
static void mentormac_reset ( struct efab_nic *efab ) {
efab_dword_t reg;
int save_port;
EFAB_POPULATE_DWORD_1 ( reg, GM_SW_RST, reset );
/* Take into reset */
EFAB_POPULATE_DWORD_1 ( reg, GM_SW_RST, 1 );
efab->op->mac_writel ( efab, &reg, GM_CFG1_REG_MAC );
udelay ( 1000 );
if ( ( ! reset ) && ( efab->port == 0 ) ) {
/* Configure GMII interface so PHY is accessible.
* Note that GMII interface is connected only to port
* 0
*/
EFAB_POPULATE_DWORD_1 ( reg, GM_MGMT_CLK_SEL, 0x4 );
efab->op->mac_writel ( efab, &reg, GM_MII_MGMT_CFG_REG_MAC );
udelay ( 10 );
}
/* Take out of reset */
EFAB_POPULATE_DWORD_1 ( reg, GM_SW_RST, 0 );
efab->op->mac_writel ( efab, &reg, GM_CFG1_REG_MAC );
udelay ( 1000 );
/* Mentor MAC connects both PHYs to MAC 0 */
save_port = efab->port;
efab->port = 0;
/* Configure GMII interface so PHY is accessible. Note that
* GMII interface is connected only to port 0, and that on
* Falcon this is a no-op.
*/
EFAB_POPULATE_DWORD_1 ( reg, GM_MGMT_CLK_SEL, 0x4 );
efab->op->mac_writel ( efab, &reg, GM_MII_MGMT_CFG_REG_MAC );
udelay ( 10 );
efab->port = save_port;
}
/**
@ -1038,7 +1047,7 @@ static int ef1002_reset ( struct efab_nic *efab ) {
pci_read_config_dword ( pci_dev, efab_pci_reg_addr[i], &tmp );
if ( tmp != pci_reg.reg[i] ) {
printf ( "PCI restore failed on register %02x "
"(is %08x, should be %08x); reboot\n",
"(is %08lx, should be %08lx); reboot\n",
i, tmp, pci_reg.reg[i] );
return 0;
}
@ -1060,7 +1069,6 @@ static int ef1002_reset ( struct efab_nic *efab ) {
*/
static int ef1002_init_nic ( struct efab_nic *efab ) {
efab_dword_t reg;
int save_port;
/* No idea what CAM is, but the 'datasheet' says that we have
* to write these values in at start of day
@ -1110,31 +1118,8 @@ static int ef1002_init_nic ( struct efab_nic *efab ) {
wmb();
udelay ( 10000 );
/* Reset both MACs */
save_port = efab->port;
efab->port = 0;
mentormac_reset ( efab, 1 );
efab->port = 1;
mentormac_reset ( efab, 1 );
/* Reset both PHYs */
ef1002_readl ( efab, &reg, EF1_CTR_GEN_STATUS0_REG );
EFAB_SET_DWORD_FIELD ( reg, EF1_MAC_RESET, 1 );
ef1002_writel ( efab, &reg, EF1_CTR_GEN_STATUS0_REG );
udelay ( 10000 );
EFAB_SET_DWORD_FIELD ( reg, EF1_MAC_RESET, 0 );
ef1002_writel ( efab, &reg, EF1_CTR_GEN_STATUS0_REG );
udelay ( 10000 );
/* Take MACs out of reset */
efab->port = 0;
mentormac_reset ( efab, 0 );
efab->port = 1;
mentormac_reset ( efab, 0 );
efab->port = save_port;
/* Give PHY time to wake up. It takes a while. */
sleep ( 2 );
/* Reset MAC */
mentormac_reset ( efab );
/* Attach I2C bus */
ef1002_init_eeprom ( efab );
@ -1254,7 +1239,8 @@ static int ef1002_fetch_event ( struct efab_nic *efab,
event->rx_len = ETH_FRAME_LEN;
break;
default:
printf ( "Unknown event type %d\n", ev_code );
printf ( "Unknown event type %d data %08lx\n", ev_code,
EFAB_DWORD_FIELD ( reg, EFAB_DWORD_0 ) );
event->type = EFAB_EV_NONE;
}
@ -2026,9 +2012,7 @@ static int falcon_init_nic ( struct efab_nic *efab ) {
udelay ( 1000 );
/* Reset the MAC */
mentormac_reset ( efab, 1 );
/* Take MAC out of reset */
mentormac_reset ( efab, 0 );
mentormac_reset ( efab );
/* Set up event queue */
falcon_create_special_buffer ( efab, efab->eventq, FALCON_EVQ_ID );
@ -2629,10 +2613,6 @@ static int efab_init_mac ( struct efab_nic *efab ) {
static int efab_init_nic ( struct efab_nic *efab ) {
int i;
/* Reset NIC */
if ( ! efab->op->reset ( efab ) )
return 0;
/* Initialise NIC */
if ( ! efab->op->init_nic ( efab ) )
return 0;