[PATCH] sb1250-mac: Add support for the BCM1480

This adds support for the 4th port and other new features of the
BCM1480 SOC.

Signed-Off-By: Andy Isaacson <adi@broadcom.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 70 insertions, 39 deletions

diff --git a/drivers/net/sb1250-mac.c b/drivers/net/sb1250-mac.c
index aa4ca1821759..f2be9f83f091 100644
--- a/drivers/net/sb1250-mac.c
+++ b/drivers/net/sb1250-mac.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2001,2002,2003 Broadcom Corporation
+ * Copyright (C) 2001,2002,2003,2004 Broadcom Corporation
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -43,6 +43,7 @@
 #define SBMAC_ETH0_HWADDR "40:00:00:00:01:00"
 #define SBMAC_ETH1_HWADDR "40:00:00:00:01:01"
 #define SBMAC_ETH2_HWADDR "40:00:00:00:01:02"
+#define SBMAC_ETH3_HWADDR "40:00:00:00:01:03"
 #endif
 
 
@@ -57,7 +58,7 @@ static char version1[] __devinitdata =
 
 #define CONFIG_SBMAC_COALESCE
 
-#define MAX_UNITS 3             /* More are supported, limit only on options */
+#define MAX_UNITS 4             /* More are supported, limit only on options */
 
 /* Time in jiffies before concluding the transmitter is hung. */
 #define TX_TIMEOUT  (2*HZ)
@@ -85,11 +86,11 @@ MODULE_PARM_DESC(noisy_mii, "MII status messages");
    The media type is usually passed in 'options[]'.
 */
 #ifdef MODULE
-static int options[MAX_UNITS] = {-1, -1, -1};
+static int options[MAX_UNITS] = {-1, -1, -1, -1};
 module_param_array(options, int, NULL, S_IRUGO);
 MODULE_PARM_DESC(options, "1-" __MODULE_STRING(MAX_UNITS));
 
-static int full_duplex[MAX_UNITS] = {-1, -1, -1};
+static int full_duplex[MAX_UNITS] = {-1, -1, -1, -1};
 module_param_array(full_duplex, int, NULL, S_IRUGO);
 MODULE_PARM_DESC(full_duplex, "1-" __MODULE_STRING(MAX_UNITS));
 #endif
@@ -105,13 +106,26 @@ MODULE_PARM_DESC(int_timeout, "Timeout value");
 #endif
 
 #include <asm/sibyte/sb1250.h>
-#include <asm/sibyte/sb1250_defs.h>
+#if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80)
+#include <asm/sibyte/bcm1480_regs.h>
+#include <asm/sibyte/bcm1480_int.h>
+#elif defined(CONFIG_SIBYTE_SB1250) || defined(CONFIG_SIBYTE_BCM112X)
 #include <asm/sibyte/sb1250_regs.h>
-#include <asm/sibyte/sb1250_mac.h>
-#include <asm/sibyte/sb1250_dma.h>
 #include <asm/sibyte/sb1250_int.h>
+#else
+#error invalid SiByte MAC configuation
+#endif
 #include <asm/sibyte/sb1250_scd.h>
+#include <asm/sibyte/sb1250_mac.h>
+#include <asm/sibyte/sb1250_dma.h>
 
+#if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80)
+#define UNIT_INT(n)             (K_BCM1480_INT_MAC_0 + ((n) * 2))
+#elif defined(CONFIG_SIBYTE_SB1250) || defined(CONFIG_SIBYTE_BCM112X)
+#define UNIT_INT(n)             (K_INT_MAC_0 + (n))
+#else
+#error invalid SiByte MAC configuation
+#endif
 
 /**********************************************************************
  *  Simple types
@@ -1476,10 +1490,10 @@ static void sbmac_channel_start(struct sbmac_softc *s)
          * and make sure that RD_THRSH + WR_THRSH <=128 for pass2 and above
          * Use a larger RD_THRSH for gigabit
          */
-        if (periph_rev >= 2)
-                th_value = 64;
-        else
+        if (soc_type == K_SYS_SOC_TYPE_BCM1250 && periph_rev < 2)
                 th_value = 28;
+        else
+                th_value = 64;
 
         fifo = V_MAC_TX_WR_THRSH(4) |   /* Must be '4' or '8' */
                 ((s->sbm_speed == sbmac_speed_1000)
@@ -1589,13 +1603,17 @@ static void sbmac_channel_start(struct sbmac_softc *s)
          * Turn on the rest of the bits in the enable register
          */
 
+#if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80)
+        __raw_writeq(M_MAC_RXDMA_EN0 |
+                       M_MAC_TXDMA_EN0, s->sbm_macenable);
+#elif defined(CONFIG_SIBYTE_SB1250) || defined(CONFIG_SIBYTE_BCM112X)
         __raw_writeq(M_MAC_RXDMA_EN0 |
                        M_MAC_TXDMA_EN0 |
                        M_MAC_RX_ENABLE |
                        M_MAC_TX_ENABLE, s->sbm_macenable);
-
-
-
+#else
+#error invalid SiByte MAC configuation
+#endif
 
 #ifdef CONFIG_SBMAC_COALESCE
         /*
@@ -1786,11 +1804,12 @@ static void sbmac_set_iphdr_offset(struct sbmac_softc *sc)
         reg &= ~M_MAC_IPHDR_OFFSET | V_MAC_IPHDR_OFFSET(15);
         __raw_writeq(reg, sc->sbm_rxfilter);
 
-        /* read system identification to determine revision */
-        if (periph_rev >= 2) {
-                sc->rx_hw_checksum = ENABLE;
-        } else {
+        /* BCM1250 pass1 didn't have hardware checksum.  Everything
+           later does.  */
+        if (soc_type == K_SYS_SOC_TYPE_BCM1250 && periph_rev < 2) {
                 sc->rx_hw_checksum = DISABLE;
+        } else {
+                sc->rx_hw_checksum = ENABLE;
         }
 }
 
@@ -2220,7 +2239,7 @@ static void sbmac_setmulti(struct sbmac_softc *sc)
 
 
 
-#if defined(SBMAC_ETH0_HWADDR) || defined(SBMAC_ETH1_HWADDR) || defined(SBMAC_ETH2_HWADDR)
+#if defined(SBMAC_ETH0_HWADDR) || defined(SBMAC_ETH1_HWADDR) || defined(SBMAC_ETH2_HWADDR) || defined(SBMAC_ETH3_HWADDR)
 /**********************************************************************
  *  SBMAC_PARSE_XDIGIT(str)
  *
@@ -2792,7 +2811,7 @@ static int sbmac_close(struct net_device *dev)
 
 
 
-#if defined(SBMAC_ETH0_HWADDR) || defined(SBMAC_ETH1_HWADDR) || defined(SBMAC_ETH2_HWADDR)
+#if defined(SBMAC_ETH0_HWADDR) || defined(SBMAC_ETH1_HWADDR) || defined(SBMAC_ETH2_HWADDR) || defined(SBMAC_ETH3_HWADDR)
 static void
 sbmac_setup_hwaddr(int chan,char *addr)
 {
@@ -2818,25 +2837,7 @@ sbmac_init_module(void)
         unsigned long port;
         int chip_max_units;
 
-        /*
-         * For bringup when not using the firmware, we can pre-fill
-         * the MAC addresses using the environment variables
-         * specified in this file (or maybe from the config file?)
-         */
-#ifdef SBMAC_ETH0_HWADDR
-        sbmac_setup_hwaddr(0,SBMAC_ETH0_HWADDR);
-#endif
-#ifdef SBMAC_ETH1_HWADDR
-        sbmac_setup_hwaddr(1,SBMAC_ETH1_HWADDR);
-#endif
-#ifdef SBMAC_ETH2_HWADDR
-        sbmac_setup_hwaddr(2,SBMAC_ETH2_HWADDR);
-#endif
-
-        /*
-         * Walk through the Ethernet controllers and find
-         * those who have their MAC addresses set.
-         */
+        /* Set the number of available units based on the SOC type.  */
         switch (soc_type) {
         case K_SYS_SOC_TYPE_BCM1250:
         case K_SYS_SOC_TYPE_BCM1250_ALT:
@@ -2848,6 +2849,10 @@ sbmac_init_module(void)
         case K_SYS_SOC_TYPE_BCM1250_ALT2: /* Hybrid */
                 chip_max_units = 2;
                 break;
+        case K_SYS_SOC_TYPE_BCM1x55:
+        case K_SYS_SOC_TYPE_BCM1x80:
+                chip_max_units = 4;
+                break;
         default:
                 chip_max_units = 0;
                 break;
@@ -2855,6 +2860,32 @@ sbmac_init_module(void)
         if (chip_max_units > MAX_UNITS)
                 chip_max_units = MAX_UNITS;
 
+        /*
+         * For bringup when not using the firmware, we can pre-fill
+         * the MAC addresses using the environment variables
+         * specified in this file (or maybe from the config file?)
+         */
+#ifdef SBMAC_ETH0_HWADDR
+        if (chip_max_units > 0)
+          sbmac_setup_hwaddr(0,SBMAC_ETH0_HWADDR);
+#endif
+#ifdef SBMAC_ETH1_HWADDR
+        if (chip_max_units > 1)
+          sbmac_setup_hwaddr(1,SBMAC_ETH1_HWADDR);
+#endif
+#ifdef SBMAC_ETH2_HWADDR
+        if (chip_max_units > 2)
+          sbmac_setup_hwaddr(2,SBMAC_ETH2_HWADDR);
+#endif
+#ifdef SBMAC_ETH3_HWADDR
+        if (chip_max_units > 3)
+          sbmac_setup_hwaddr(3,SBMAC_ETH3_HWADDR);
+#endif
+
+        /*
+         * Walk through the Ethernet controllers and find
+         * those who have their MAC addresses set.
+         */
         for (idx = 0; idx < chip_max_units; idx++) {
 
                 /*
@@ -2886,7 +2917,7 @@ sbmac_init_module(void)
 
                 printk(KERN_DEBUG "sbmac: configuring MAC at %lx\n", port);
 
-                dev->irq = K_INT_MAC_0 + idx;
+                dev->irq = UNIT_INT(idx);
                 dev->base_addr = port;
                 dev->mem_end = 0;
                 if (sbmac_init(dev, idx)) {