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bnx2x: Reading the FW version of the BCM8481 PHY
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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>
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Eilon Greenstein authored and David S. Miller committed Aug 13, 2009
1 parent 2f90446 commit b1607af
Showing 1 changed file with 113 additions and 5 deletions.
118 changes: 113 additions & 5 deletions drivers/net/bnx2x_link.c
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Original file line number Diff line number Diff line change
Expand Up @@ -2046,6 +2046,111 @@ static void bnx2x_save_bcm_spirom_ver(struct bnx2x *bp, u8 port,
(u32)(fw_ver1<<16 | fw_ver2));
}


static void bnx2x_save_8481_spirom_version(struct bnx2x *bp, u8 port,
u8 ext_phy_addr, u32 shmem_base)
{
u16 val, fw_ver1, fw_ver2, cnt;
/* For the 32 bits registers in 8481, access via MDIO2ARM interface.*/
/* (1) set register 0xc200_0014(SPI_BRIDGE_CTRL_2) to 0x03000000 */
bnx2x_cl45_write(bp, port,
PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8481,
ext_phy_addr, MDIO_PMA_DEVAD,
0xA819, 0x0014);
bnx2x_cl45_write(bp, port,
PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8481,
ext_phy_addr,
MDIO_PMA_DEVAD,
0xA81A,
0xc200);
bnx2x_cl45_write(bp, port,
PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8481,
ext_phy_addr,
MDIO_PMA_DEVAD,
0xA81B,
0x0000);
bnx2x_cl45_write(bp, port,
PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8481,
ext_phy_addr,
MDIO_PMA_DEVAD,
0xA81C,
0x0300);
bnx2x_cl45_write(bp, port,
PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8481,
ext_phy_addr,
MDIO_PMA_DEVAD,
0xA817,
0x0009);

for (cnt = 0; cnt < 100; cnt++) {
bnx2x_cl45_read(bp, port,
PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8481,
ext_phy_addr,
MDIO_PMA_DEVAD,
0xA818,
&val);
if (val & 1)
break;
udelay(5);
}
if (cnt == 100) {
DP(NETIF_MSG_LINK, "Unable to read 8481 phy fw version(1)\n");
bnx2x_save_spirom_version(bp, port,
shmem_base, 0);
return;
}


/* 2) read register 0xc200_0000 (SPI_FW_STATUS) */
bnx2x_cl45_write(bp, port,
PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8481,
ext_phy_addr, MDIO_PMA_DEVAD,
0xA819, 0x0000);
bnx2x_cl45_write(bp, port,
PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8481,
ext_phy_addr, MDIO_PMA_DEVAD,
0xA81A, 0xc200);
bnx2x_cl45_write(bp, port,
PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8481,
ext_phy_addr, MDIO_PMA_DEVAD,
0xA817, 0x000A);
for (cnt = 0; cnt < 100; cnt++) {
bnx2x_cl45_read(bp, port,
PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8481,
ext_phy_addr,
MDIO_PMA_DEVAD,
0xA818,
&val);
if (val & 1)
break;
udelay(5);
}
if (cnt == 100) {
DP(NETIF_MSG_LINK, "Unable to read 8481 phy fw version(2)\n");
bnx2x_save_spirom_version(bp, port,
shmem_base, 0);
return;
}

/* lower 16 bits of the register SPI_FW_STATUS */
bnx2x_cl45_read(bp, port,
PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8481,
ext_phy_addr,
MDIO_PMA_DEVAD,
0xA81B,
&fw_ver1);
/* upper 16 bits of register SPI_FW_STATUS */
bnx2x_cl45_read(bp, port,
PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8481,
ext_phy_addr,
MDIO_PMA_DEVAD,
0xA81C,
&fw_ver2);

bnx2x_save_spirom_version(bp, port,
shmem_base, (fw_ver2<<16) | fw_ver1);
}

static void bnx2x_bcm8072_external_rom_boot(struct link_params *params)
{
struct bnx2x *bp = params->bp;
Expand Down Expand Up @@ -4269,11 +4374,10 @@ static u8 bnx2x_ext_phy_init(struct link_params *params, struct link_vars *vars)
autoneg_ctrl);
}

bnx2x_save_bcm_spirom_ver(bp, params->port,
ext_phy_type,
ext_phy_addr,
params->shmem_base);

/* Save spirom version */
bnx2x_save_8481_spirom_version(bp, params->port,
ext_phy_addr,
params->shmem_base);
break;
case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_FAILURE:
DP(NETIF_MSG_LINK,
Expand Down Expand Up @@ -5320,7 +5424,11 @@ u8 bnx2x_get_ext_phy_fw_version(struct link_params *params, u8 driver_loaded,
case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8705:
case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8706:
case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8726:
status = bnx2x_format_ver(spirom_ver, version, len);
break;
case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8481:
spirom_ver = ((spirom_ver & 0xF80) >> 7) << 16 |
(spirom_ver & 0x7F);
status = bnx2x_format_ver(spirom_ver, version, len);
break;
case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT:
Expand Down

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