UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

bnx2x: Swap BCM8073 PHY polarity if required 

Enable controlling BCM8073 PN polarity swap through nvm configuration, which is required in certain systems

Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yaniv Rosner 2011-01-18 04:33:18 +00:00 committed by David S. Miller
parent f966a13f92
commit 74d7a11979
2 changed files with 46 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/net/bnx2x/bnx2x_hsi.h
View File

@ -352,6 +352,10 @@ struct port_hw_cfg { /* port 0: 0x12c port 1: 0x2bc */
#define PORT_HW_CFG_LANE_SWAP_CFG_31203120 0x0000d8d8
/* forced only */
#define PORT_HW_CFG_LANE_SWAP_CFG_32103210 0x0000e4e4
/* Indicate whether to swap the external phy polarity */
#define PORT_HW_CFG_SWAP_PHY_POLARITY_MASK 0x00010000
#define PORT_HW_CFG_SWAP_PHY_POLARITY_DISABLED 0x00000000
#define PORT_HW_CFG_SWAP_PHY_POLARITY_ENABLED 0x00010000
u32 external_phy_config;
#define PORT_HW_CFG_SERDES_EXT_PHY_TYPE_MASK 0xff000000

42
drivers/net/bnx2x/bnx2x_link.c
View File

@ -4108,6 +4108,25 @@ static u8 bnx2x_8073_config_init(struct bnx2x_phy *phy,
DP(NETIF_MSG_LINK, "Before rom RX_ALARM(port1): 0x%x\n", tmp1);
/**
* If this is forced speed, set to KR or KX (all other are not
* supported)
*/
/* Swap polarity if required - Must be done only in non-1G mode */
if (params->lane_config & PORT_HW_CFG_SWAP_PHY_POLARITY_ENABLED) {
/* Configure the 8073 to swap _P and _N of the KR lines */
DP(NETIF_MSG_LINK, "Swapping polarity for the 8073\n");
/* 10G Rx/Tx and 1G Tx signal polarity swap */
bnx2x_cl45_read(bp, phy,
MDIO_PMA_DEVAD,
MDIO_PMA_REG_8073_OPT_DIGITAL_CTRL, &val);
bnx2x_cl45_write(bp, phy,
MDIO_PMA_DEVAD,
MDIO_PMA_REG_8073_OPT_DIGITAL_CTRL,
(val | (3<<9)));
}
/* Enable CL37 BAM */
if (REG_RD(bp, params->shmem_base +
offsetof(struct shmem_region, dev_info.
@ -4314,6 +4333,29 @@ static u8 bnx2x_8073_read_status(struct bnx2x_phy *phy,
}
if (link_up) {
/* Swap polarity if required */
if (params->lane_config &
PORT_HW_CFG_SWAP_PHY_POLARITY_ENABLED) {
/* Configure the 8073 to swap P and N of the KR lines */
bnx2x_cl45_read(bp, phy,
MDIO_XS_DEVAD,
MDIO_XS_REG_8073_RX_CTRL_PCIE, &val1);
/**
* Set bit 3 to invert Rx in 1G mode and clear this bit
* when it`s in 10G mode.
*/
if (vars->line_speed == SPEED_1000) {
DP(NETIF_MSG_LINK, "Swapping 1G polarity for"
"the 8073\n");
val1 |= (1<<3);
} else
val1 &= ~(1<<3);
bnx2x_cl45_write(bp, phy,
MDIO_XS_DEVAD,
MDIO_XS_REG_8073_RX_CTRL_PCIE,
val1);
}
bnx2x_ext_phy_10G_an_resolve(bp, phy, vars);
bnx2x_8073_resolve_fc(phy, params, vars);
}