[PATCH] RapidIO support: ppc32

Adds PPC32 RIO support.  Init code for the MPC85xx RIO ports and glue for the
STx GP3 board to use it.

Signed-off-by: Matt Porter <mporter@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2 files changed, 24 insertions, 0 deletions

diff --git a/arch/ppc/platforms/85xx/mpc85xx_ads_common.c b/arch/ppc/platforms/85xx/mpc85xx_ads_common.c
index bd3ac0136756..16ad092d8a06 100644
--- a/arch/ppc/platforms/85xx/mpc85xx_ads_common.c
+++ b/arch/ppc/platforms/85xx/mpc85xx_ads_common.c
@@ -45,6 +45,8 @@
 
 #include <mm/mmu_decl.h>
 
+#include <syslib/ppc85xx_rio.h>
+
 #include <platforms/85xx/mpc85xx_ads_common.h>
 
 #ifndef CONFIG_PCI
@@ -189,3 +191,11 @@ mpc85xx_exclude_device(u_char bus, u_char devfn)
 }
 
 #endif /* CONFIG_PCI */
+
+#ifdef CONFIG_RAPIDIO
+void platform_rio_init(void)
+{
+        /* 512MB RIO LAW at 0xc0000000 */
+        mpc85xx_rio_setup(0xc0000000, 0x20000000);
+}
+#endif /* CONFIG_RAPIDIO */
diff --git a/arch/ppc/platforms/85xx/stx_gp3.c b/arch/ppc/platforms/85xx/stx_gp3.c
index 1e1b85f8193a..15ce9d070634 100644
--- a/arch/ppc/platforms/85xx/stx_gp3.c
+++ b/arch/ppc/platforms/85xx/stx_gp3.c
@@ -37,6 +37,7 @@
 #include <linux/module.h>
 #include <linux/fsl_devices.h>
 #include <linux/interrupt.h>
+#include <linux/rio.h>
 
 #include <asm/system.h>
 #include <asm/pgtable.h>
@@ -57,6 +58,7 @@
 
 #include <syslib/cpm2_pic.h>
 #include <syslib/ppc85xx_common.h>
+#include <syslib/ppc85xx_rio.h>
 
 
 unsigned char __res[sizeof(bd_t)];
@@ -273,6 +275,18 @@ int mpc85xx_exclude_device(u_char bus, u_char devfn)
 }
 #endif /* CONFIG_PCI */
 
+#ifdef CONFIG_RAPIDIO
+void
+platform_rio_init(void)
+{
+        /*
+         * The STx firmware configures the RapidIO Local Access Window
+         * at 0xc0000000 with a size of 512MB.
+         */
+        mpc85xx_rio_setup(0xc0000000, 0x20000000);
+}
+#endif /* CONFIG_RAPIDIO */
+
 void __init
 platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
               unsigned long r6, unsigned long r7)