[POWERPC] cell: update Cell BE register definitions

There are a few definitions that are required by subsequent patches,
so add them here.

The original patch is from David Erb, but is significantly cleaned
up by Kevon Corry.

Cc: Kevin Corry <kevcorry@us.ibm.com>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 41 insertions, 3 deletions

diff --git a/arch/powerpc/platforms/cell/cbe_regs.c b/arch/powerpc/platforms/cell/cbe_regs.c
index 2f194ba2989969..5e3e0e925e4ec6 100644
--- a/arch/powerpc/platforms/cell/cbe_regs.c
+++ b/arch/powerpc/platforms/cell/cbe_regs.c
@@ -8,6 +8,7 @@
 
 #include <linux/percpu.h>
 #include <linux/types.h>
+#include <linux/module.h>
 
 #include <asm/io.h>
 #include <asm/pgtable.h>
@@ -16,8 +17,6 @@
 
 #include "cbe_regs.h"
 
-#define MAX_CBE		2
-
 /*
  * Current implementation uses "cpu" nodes. We build our own mapping
  * array of cpu numbers to cpu nodes locally for now to allow interrupt
@@ -30,6 +29,7 @@ static struct cbe_regs_map
 	struct device_node *cpu_node;
 	struct cbe_pmd_regs __iomem *pmd_regs;
 	struct cbe_iic_regs __iomem *iic_regs;
+	struct cbe_mic_tm_regs __iomem *mic_tm_regs;
 } cbe_regs_maps[MAX_CBE];
 static int cbe_regs_map_count;
 
@@ -42,6 +42,19 @@ static struct cbe_thread_map
 static struct cbe_regs_map *cbe_find_map(struct device_node *np)
 {
 	int i;
+	struct device_node *tmp_np;
+
+	if (strcasecmp(np->type, "spe") == 0) {
+		if (np->data == NULL) {
+			/* walk up path until cpu node was found */
+			tmp_np = np->parent;
+			while (tmp_np != NULL && strcasecmp(tmp_np->type, "cpu") != 0)
+				tmp_np = tmp_np->parent;
+
+			np->data = cbe_find_map(tmp_np);
+		}
+		return np->data;
+	}
 
 	for (i = 0; i < cbe_regs_map_count; i++)
 		if (cbe_regs_maps[i].cpu_node == np)
@@ -56,6 +69,7 @@ struct cbe_pmd_regs __iomem *cbe_get_pmd_regs(struct device_node *np)
 		return NULL;
 	return map->pmd_regs;
 }
+EXPORT_SYMBOL_GPL(cbe_get_pmd_regs);
 
 struct cbe_pmd_regs __iomem *cbe_get_cpu_pmd_regs(int cpu)
 {
@@ -64,7 +78,7 @@ struct cbe_pmd_regs __iomem *cbe_get_cpu_pmd_regs(int cpu)
 		return NULL;
 	return map->pmd_regs;
 }
-
+EXPORT_SYMBOL_GPL(cbe_get_cpu_pmd_regs);
 
 struct cbe_iic_regs __iomem *cbe_get_iic_regs(struct device_node *np)
 {
@@ -73,6 +87,7 @@ struct cbe_iic_regs __iomem *cbe_get_iic_regs(struct device_node *np)
 		return NULL;
 	return map->iic_regs;
 }
+
 struct cbe_iic_regs __iomem *cbe_get_cpu_iic_regs(int cpu)
 {
 	struct cbe_regs_map *map = cbe_thread_map[cpu].regs;
@@ -81,6 +96,24 @@ struct cbe_iic_regs __iomem *cbe_get_cpu_iic_regs(int cpu)
 	return map->iic_regs;
 }
 
+struct cbe_mic_tm_regs __iomem *cbe_get_mic_tm_regs(struct device_node *np)
+{
+	struct cbe_regs_map *map = cbe_find_map(np);
+	if (map == NULL)
+		return NULL;
+	return map->mic_tm_regs;
+}
+
+struct cbe_mic_tm_regs __iomem *cbe_get_cpu_mic_tm_regs(int cpu)
+{
+	struct cbe_regs_map *map = cbe_thread_map[cpu].regs;
+	if (map == NULL)
+		return NULL;
+	return map->mic_tm_regs;
+}
+EXPORT_SYMBOL_GPL(cbe_get_cpu_mic_tm_regs);
+
+
 void __init cbe_regs_init(void)
 {
 	int i;
@@ -119,6 +152,11 @@ void __init cbe_regs_init(void)
 		prop = get_property(cpu, "iic", NULL);
 		if (prop != NULL)
 			map->iic_regs = ioremap(prop->address, prop->len);
+
+		prop = (struct address_prop *)get_property(cpu, "mic-tm",
+							   NULL);
+		if (prop != NULL)
+			map->mic_tm_regs = ioremap(prop->address, prop->len);
 	}
 }