commit c1d1c5d4213ee96e054c4d195117368972a4c01f
author Hauke Mehrtens <hauke@hauke-m.de> Sat Jul 23 01:20:14 2011 +0200
committer John W. Linville <linville@tuxdriver.com> Mon Aug 08 14:29:32 2011 -0400
tree 4ce75f49f1b46835ab613bd85084b9ce863c5853
parent a656ffcbc7a98a80d2136ae6bbdd8ae2eb48c78a

bcm47xx: add support for bcma bus

This patch add support for the bcma bus. Broadcom uses only Mips 74K
CPUs on the new SoC and on the old ons using ssb bus there are no Mips
74K CPUs.

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

diff --git a/arch/mips/bcm47xx/setup.c b/arch/mips/bcm47xx/setup.c
index 142cf1b..17c3d14 100644
--- a/arch/mips/bcm47xx/setup.c
+++ b/arch/mips/bcm47xx/setup.c
@@ -29,6 +29,7 @@
 #include <linux/types.h>
 #include <linux/ssb/ssb.h>
 #include <linux/ssb/ssb_embedded.h>
+#include <linux/bcma/bcma_soc.h>
 #include <asm/bootinfo.h>
 #include <asm/reboot.h>
 #include <asm/time.h>
@@ -52,6 +53,11 @@
 		ssb_watchdog_timer_set(&bcm47xx_bus.ssb, 1);
 		break;
 #endif
+#ifdef CONFIG_BCM47XX_BCMA
+	case BCM47XX_BUS_TYPE_BCMA:
+		bcma_chipco_watchdog_timer_set(&bcm47xx_bus.bcma.bus.drv_cc, 1);
+		break;
+#endif
 	}
 	while (1)
 		cpu_relax();
@@ -67,6 +73,11 @@
 		ssb_watchdog_timer_set(&bcm47xx_bus.ssb, 0);
 		break;
 #endif
+#ifdef CONFIG_BCM47XX_BCMA
+	case BCM47XX_BUS_TYPE_BCMA:
+		bcma_chipco_watchdog_timer_set(&bcm47xx_bus.bcma.bus.drv_cc, 0);
+		break;
+#endif
 	}
 	while (1)
 		cpu_relax();
@@ -295,16 +306,54 @@
 }
 #endif
 
+#ifdef CONFIG_BCM47XX_BCMA
+static void __init bcm47xx_register_bcma(void)
+{
+	int err;
+
+	err = bcma_host_soc_register(&bcm47xx_bus.bcma);
+	if (err)
+		panic("Failed to initialize BCMA bus (err %d)\n", err);
+}
+#endif
+
 void __init plat_mem_setup(void)
 {
 	struct cpuinfo_mips *c = &current_cpu_data;
 
-#ifdef CONFIG_BCM47XX_SSB
-	bcm47xx_bus_type = BCM47XX_BUS_TYPE_SSB;
-	bcm47xx_register_ssb();
+	if (c->cputype == CPU_74K) {
+		printk(KERN_INFO "bcm47xx: using bcma bus\n");
+#ifdef CONFIG_BCM47XX_BCMA
+		bcm47xx_bus_type = BCM47XX_BUS_TYPE_BCMA;
+		bcm47xx_register_bcma();
 #endif
+	} else {
+		printk(KERN_INFO "bcm47xx: using ssb bus\n");
+#ifdef CONFIG_BCM47XX_SSB
+		bcm47xx_bus_type = BCM47XX_BUS_TYPE_SSB;
+		bcm47xx_register_ssb();
+#endif
+	}
 
 	_machine_restart = bcm47xx_machine_restart;
 	_machine_halt = bcm47xx_machine_halt;
 	pm_power_off = bcm47xx_machine_halt;
 }
+
+static int __init bcm47xx_register_bus_complete(void)
+{
+	switch (bcm47xx_bus_type) {
+#ifdef CONFIG_BCM47XX_SSB
+	case BCM47XX_BUS_TYPE_SSB:
+		/* Nothing to do */
+		break;
+#endif
+#ifdef CONFIG_BCM47XX_BCMA
+	case BCM47XX_BUS_TYPE_BCMA:
+		bcma_bus_register(&bcm47xx_bus.bcma.bus);
+		break;
+#endif
+	}
+	return 0;
+}
+device_initcall(bcm47xx_register_bus_complete);