bnx2x: Fix BCM8073/BCM8727 microcode loading

Improve microcode loading verification before proceeding to next stage

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>

diff --git a/drivers/net/bnx2x/bnx2x_link.c b/drivers/net/bnx2x/bnx2x_link.c
index 36a8844..500258d 100644 (file)
--- a/drivers/net/bnx2x/bnx2x_link.c
+++ b/drivers/net/bnx2x/bnx2x_link.c
@@ -3870,11 +3870,14 @@ static void bnx2x_8073_resolve_fc(struct bnx2x_phy *phy,
                           pause_result);
        }
 }
-
-static void bnx2x_8073_8727_external_rom_boot(struct bnx2x *bp,
+static u8 bnx2x_8073_8727_external_rom_boot(struct bnx2x *bp,
                                              struct bnx2x_phy *phy,
                                              u8 port)
 {
+       u32 count = 0;
+       u16 fw_ver1, fw_msgout;
+       u8 rc = 0;
+
        /* Boot port from external ROM  */
        /* EDC grst */
        bnx2x_cl45_write(bp, phy,
@@ -3904,14 +3907,45 @@ static void bnx2x_8073_8727_external_rom_boot(struct bnx2x *bp,
                       MDIO_PMA_REG_GEN_CTRL,
                       MDIO_PMA_REG_GEN_CTRL_ROM_RESET_INTERNAL_MP);
 
-       /* wait for 120ms for code download via SPI port */
-       msleep(120);
+       /* Delay 100ms per the PHY specifications */
+       msleep(100);
+
+       /* 8073 sometimes taking longer to download */
+       do {
+               count++;
+               if (count > 300) {
+                       DP(NETIF_MSG_LINK,
+                                "bnx2x_8073_8727_external_rom_boot port %x:"
+                                "Download failed. fw version = 0x%x\n",
+                                port, fw_ver1);
+                       rc = -EINVAL;
+                       break;
+               }
+
+               bnx2x_cl45_read(bp, phy,
+                               MDIO_PMA_DEVAD,
+                               MDIO_PMA_REG_ROM_VER1, &fw_ver1);
+               bnx2x_cl45_read(bp, phy,
+                               MDIO_PMA_DEVAD,
+                               MDIO_PMA_REG_M8051_MSGOUT_REG, &fw_msgout);
+
+               msleep(1);
+       } while (fw_ver1 == 0 || fw_ver1 == 0x4321 ||
+                       ((fw_msgout & 0xff) != 0x03 && (phy->type ==
+                       PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8073)));
 
        /* Clear ser_boot_ctl bit */
        bnx2x_cl45_write(bp, phy,
                       MDIO_PMA_DEVAD,
                       MDIO_PMA_REG_MISC_CTRL1, 0x0000);
        bnx2x_save_bcm_spirom_ver(bp, phy, port);
+
+       DP(NETIF_MSG_LINK,
+                "bnx2x_8073_8727_external_rom_boot port %x:"
+                "Download complete. fw version = 0x%x\n",
+                port, fw_ver1);
+
+       return rc;
 }
 
 static void bnx2x_8073_set_xaui_low_power_mode(struct bnx2x *bp,
@@ -7721,7 +7755,6 @@ static u8 bnx2x_8073_common_init_phy(struct bnx2x *bp,
 
        /* PART2 - Download firmware to both phys */
        for (port = PORT_MAX - 1; port >= PORT_0; port--) {
-               u16 fw_ver1;
                if (CHIP_IS_E2(bp))
                        port_of_path = 0;
                else
@@ -7729,19 +7762,9 @@ static u8 bnx2x_8073_common_init_phy(struct bnx2x *bp,
 
                DP(NETIF_MSG_LINK, "Loading spirom for phy address 0x%x\n",
                           phy_blk[port]->addr);
-               bnx2x_8073_8727_external_rom_boot(bp, phy_blk[port],
-                                                 port_of_path);
-
-               bnx2x_cl45_read(bp, phy_blk[port],
-                             MDIO_PMA_DEVAD,
-                             MDIO_PMA_REG_ROM_VER1, &fw_ver1);
-               if (fw_ver1 == 0 || fw_ver1 == 0x4321) {
-                       DP(NETIF_MSG_LINK,
-                                "bnx2x_8073_common_init_phy port %x:"
-                                "Download failed. fw version = 0x%x\n",
-                                port, fw_ver1);
+               if (bnx2x_8073_8727_external_rom_boot(bp, phy_blk[port],
+                                                     port_of_path))
                        return -EINVAL;
-               }
 
                /* Only set bit 10 = 1 (Tx power down) */
                bnx2x_cl45_read(bp, phy_blk[port],
@@ -7906,27 +7929,17 @@ static u8 bnx2x_8727_common_init_phy(struct bnx2x *bp,
        }
        /* PART2 - Download firmware to both phys */
        for (port = PORT_MAX - 1; port >= PORT_0; port--) {
-               u16 fw_ver1;
                 if (CHIP_IS_E2(bp))
                        port_of_path = 0;
                else
                        port_of_path = port;
                DP(NETIF_MSG_LINK, "Loading spirom for phy address 0x%x\n",
                           phy_blk[port]->addr);
-               bnx2x_8073_8727_external_rom_boot(bp, phy_blk[port],
-                                                 port_of_path);
-               bnx2x_cl45_read(bp, phy_blk[port],
-                             MDIO_PMA_DEVAD,
-                             MDIO_PMA_REG_ROM_VER1, &fw_ver1);
-               if (fw_ver1 == 0 || fw_ver1 == 0x4321) {
-                       DP(NETIF_MSG_LINK,
-                                "bnx2x_8727_common_init_phy port %x:"
-                                "Download failed. fw version = 0x%x\n",
-                                port, fw_ver1);
+               if (bnx2x_8073_8727_external_rom_boot(bp, phy_blk[port],
+                                                     port_of_path))
                        return -EINVAL;
-               }
-       }
 
+       }
        return 0;
 }