cs89x0 net driver minor fixes, SH4 support, and cmd line media support

Documentation/networking/cs89x0.txt

@@ -51,7 +51,7 @@ TABLE OF CONTENTS
     6.2 Information Required Before Contacting Technical Support
     6.3 Obtaining the Latest Driver Version
     6.4 Current maintainer
-
+    6.5 Kernel boot parameters
 
 
 1.0 CIRRUS LOGIC LAN CS8900/CS8920 ETHERNET ADAPTERS
@@ -690,4 +690,14 @@ the latest drivers and technical publications.
 6.4 Current maintainer
 
 In February 2000 the maintenance of this driver was assumed by Andrew
-Morton <andrewm@uow.edu.au>
+Morton <akpm@zip.com.au>
+
+6.5 Kernel module parameters
+
+For use in embedded environments with no cs89x0 EEPROM, the kernel boot
+parameter `cs89x0_media=' has been implemented.  Usage is:
+
+	cs89x0_media=rj45    or
+	cs89x0_media=aui     or
+	cs89x0_media=bnc
+

drivers/net/cs89x0.c

@@ -81,6 +81,9 @@
                     : Make `version[]' __initdata
                     : Uninlined the read/write reg/word functions.
 
+  Oskar Schirmer    : oskar@scara.com
+                    : HiCO.SH4 (superh) support added (irq#1, cs89x0_media=)
+
 */
 
 /* Always include 'config.h' first in case the user wants to turn on
@@ -156,6 +159,10 @@ static char version[] __initdata =
 static unsigned int netcard_portlist[] __initdata =
    { 0x80090303, 0x300, 0x320, 0x340, 0x360, 0x200, 0x220, 0x240, 0x260, 0x280, 0x2a0, 0x2c0, 0x2e0, 0};
 static unsigned int cs8900_irq_map[] = {12,0,0,0};
+#elif defined(CONFIG_SH_HICOSH4)
+static unsigned int netcard_portlist[] __initdata =
+   { 0x0300, 0};
+static unsigned int cs8900_irq_map[] = {1,0,0,0};
 #else
 static unsigned int netcard_portlist[] __initdata =
    { 0x300, 0x320, 0x340, 0x360, 0x200, 0x220, 0x240, 0x260, 0x280, 0x2a0, 0x2c0, 0x2e0, 0};
@@ -247,6 +254,20 @@ static int __init dma_fn(char *str)
 __setup("cs89x0_dma=", dma_fn);
 #endif	/* !defined(MODULE) && (ALLOW_DMA != 0) */
 
+#ifndef MODULE
+static int g_cs89x0_media__force;
+
+static int __init media_fn(char *str)
+{
+	if (!strcmp(str, "rj45")) g_cs89x0_media__force = FORCE_RJ45;
+	else if (!strcmp(str, "aui")) g_cs89x0_media__force = FORCE_AUI;
+	else if (!strcmp(str, "bnc")) g_cs89x0_media__force = FORCE_BNC;
+	return 1;
+}
+
+__setup("cs89x0_media=", media_fn);
+#endif
+
 
 /* Check for a network adaptor of this type, and return '0' iff one exists.
    If dev->base_addr == 0, probe all likely locations.
@@ -382,6 +403,9 @@ cs89x0_probe1(struct net_device *dev, int ioaddr)
 			lp->dma = g_cs89x0_dma;
 			lp->dmasize = 16;	/* Could make this an option... */
 		}
+#endif
+#ifndef MODULE
+		lp->force = g_cs89x0_media__force;
 #endif
         }
 	lp = (struct net_local *)dev->priv;
@@ -394,6 +418,12 @@ cs89x0_probe1(struct net_device *dev, int ioaddr)
 		goto out1;
 	}
 
+#ifdef CONFIG_SH_HICOSH4
+	/* truely reset the chip */
+	outw(0x0114, ioaddr + ADD_PORT);
+	outw(0x0040, ioaddr + DATA_PORT);
+#endif
+
 	/* if they give us an odd I/O address, then do ONE write to
            the address port, to get it back to address zero, where we
            expect to find the EISA signature word. An IO with a base of 0x3
@@ -454,6 +484,39 @@ printk("PP_addr=0x%x\n", inw(ioaddr + ADD_PORT));
 	   EEPROM read on reset. So, if the chip says it read the EEPROM
 	   the driver will always do *something* instead of complain that
 	   adapter_cnf is 0. */
+
+#ifdef CONFIG_SH_HICOSH4
+	if (1) {
+		/* For the HiCO.SH4 board, things are different: we don't
+		   have EEPROM, but there is some data in flash, so we go
+		   get it there directly (MAC). */
+		__u16 *confd;
+		short cnt;
+		if (((* (volatile __u32 *) 0xa0013ff0) & 0x00ffffff)
+			== 0x006c3000) {
+			confd = (__u16*) 0xa0013fc0;
+		} else {
+			confd = (__u16*) 0xa001ffc0;
+		}
+		cnt = (*confd++ & 0x00ff) >> 1;
+		while (--cnt > 0) {
+			__u16 j = *confd++;
+			
+			switch (j & 0x0fff) {
+			case PP_IA:
+				for (i = 0; i < ETH_ALEN/2; i++) {
+					dev->dev_addr[i*2] = confd[i] & 0xFF;
+					dev->dev_addr[i*2+1] = confd[i] >> 8;
+				}
+				break;
+			}
+			j = (j >> 12) + 1;
+			confd += j;
+			cnt -= j;
+		}
+	} else
+#endif
+
         if ((readreg(dev, PP_SelfST) & (EEPROM_OK | EEPROM_PRESENT)) == 
 	      (EEPROM_OK|EEPROM_PRESENT)) {
 	        /* Load the MAC. */
@@ -507,6 +570,11 @@ printk("PP_addr=0x%x\n", inw(ioaddr + ADD_PORT));
         printk("\n");
    
 	/* First check to see if an EEPROM is attached. */
+#ifdef CONFIG_SH_HICOSH4 /* no EEPROM on HiCO, don't hazzle with it here */
+	if (1) {
+		printk(KERN_NOTICE "cs89x0: No EEPROM on HiCO.SH4\n");
+	} else
+#endif
 	if ((readreg(dev, PP_SelfST) & EEPROM_PRESENT) == 0)
 		printk(KERN_WARNING "cs89x0: No EEPROM, relying on command line....\n");
 	else if (get_eeprom_data(dev, START_EEPROM_DATA,CHKSUM_LEN,eeprom_buff) < 0) {
@@ -616,10 +684,10 @@ printk("PP_addr=0x%x\n", inw(ioaddr + ADD_PORT));
 	}
 
 	/* print the ethernet address. */
-	printk(", MAC ");
+	printk(", MAC");
 	for (i = 0; i < ETH_ALEN; i++)
 	{
-		printk("%s%02x", i ? ":" : "", dev->dev_addr[i]);
+		printk("%c%02x", i ? ':' : ' ', dev->dev_addr[i]);
 	}
 
 	dev->open		= net_open;
@@ -1046,6 +1114,7 @@ net_open(struct net_device *dev)
 	int i;
 	int ret;
 
+#ifndef CONFIG_SH_HICOSH4 /* uses irq#1, so this wont work */
 	if (dev->irq < 2) {
 		/* Allow interrupts to be generated by the chip */
 /* Cirrus' release had this: */
@@ -1056,7 +1125,7 @@ net_open(struct net_device *dev)
 		writereg(dev, PP_BusCTL, ENABLE_IRQ | MEMORY_ON);
 
 		for (i = 2; i < CS8920_NO_INTS; i++) {
-			if ((1 << dev->irq) & lp->irq_map) {
+			if ((1 << i) & lp->irq_map) {
 				if (request_irq(i, net_interrupt, 0, dev->name, dev) == 0) {
 					dev->irq = i;
 					write_irq(dev, lp->chip_type, i);
@@ -1072,7 +1141,10 @@ net_open(struct net_device *dev)
 			ret = -EAGAIN;
 			goto bad_out;
 		}
-	} else {
+	}
+	else
+#endif
+	{
 		if (((1 << dev->irq) & lp->irq_map) == 0) {
 			printk(KERN_ERR "%s: IRQ %d is not in our map of allowable IRQs, which is %x\n",
                                dev->name, dev->irq, lp->irq_map);

drivers/net/cs89x0.h

@@ -437,7 +437,11 @@
 #define IRQ_MAP_EEPROM_DATA 0x0046 /*  Offset into eeprom for the IRQ map */
 #define IRQ_MAP_LEN 0x0004 /*  No of bytes to read for the IRQ map */
 #define PNP_IRQ_FRMT 0x0022 /*  PNP small item IRQ format */
+#ifdef CONFIG_SH_HICOSH4
+#define CS8900_IRQ_MAP 0x0002 /* HiCO-SH4 board has its IRQ on #1 */
+#else
 #define CS8900_IRQ_MAP 0x1c20 /*  This IRQ map is fixed */
+#endif
 
 #define CS8920_NO_INTS 0x0F   /*  Max CS8920 interrupt select # */