MIPS: bcm47xx: refactor fetching board data

Now the fetching of board data also uses nvram_read_u16 and not
simple_strtoul any more.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

arch/mips/bcm47xx/setup.c

@@ -109,12 +109,7 @@ static int bcm47xx_get_invariants(struct ssb_bus *bus,
 	/* Fill boardinfo structure */
 	memset(&(iv->boardinfo), 0 , sizeof(struct ssb_boardinfo));
 
-	if (nvram_getenv("boardvendor", buf, sizeof(buf)) >= 0)
-		iv->boardinfo.vendor = (u16)simple_strtoul(buf, NULL, 0);
-	else
-		iv->boardinfo.vendor = SSB_BOARDVENDOR_BCM;
-	if (nvram_getenv("boardtype", buf, sizeof(buf)) >= 0)
-		iv->boardinfo.type = (u16)simple_strtoul(buf, NULL, 0);
+	bcm47xx_fill_ssb_boardinfo(&iv->boardinfo, NULL);
 
 	bcm47xx_fill_sprom(&iv->sprom, NULL);
 

arch/mips/bcm47xx/sprom.c

@@ -618,3 +618,15 @@ void bcm47xx_fill_sprom(struct ssb_sprom *sprom, const char *prefix)
 		bcm47xx_fill_sprom_r1(sprom, prefix);
 	}
 }
+
+#ifdef CONFIG_BCM47XX_SSB
+void bcm47xx_fill_ssb_boardinfo(struct ssb_boardinfo *boardinfo,
+				const char *prefix)
+{
+	nvram_read_u16(prefix, NULL, "boardvendor", &boardinfo->vendor, 0);
+	if (!boardinfo->vendor)
+		boardinfo->vendor = SSB_BOARDVENDOR_BCM;
+
+	nvram_read_u16(prefix, NULL, "boardtype", &boardinfo->type, 0);
+}
+#endif

arch/mips/include/asm/mach-bcm47xx/bcm47xx.h

@@ -47,4 +47,9 @@ extern enum bcm47xx_bus_type bcm47xx_bus_type;
 void bcm47xx_fill_sprom(struct ssb_sprom *sprom, const char *prefix);
 void bcm47xx_fill_sprom_ethernet(struct ssb_sprom *sprom, const char *prefix);
 
+#ifdef CONFIG_BCM47XX_SSB
+void bcm47xx_fill_ssb_boardinfo(struct ssb_boardinfo *boardinfo,
+				const char *prefix);
+#endif
+
 #endif /* __ASM_BCM47XX_H */